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We encourage you to perform a real-time search of NLEBeta
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1

Poster Sessions J. Dudhia Mesoscale and Microscale Meteorology Division  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

J. Dudhia J. Dudhia Mesoscale and Microscale Meteorology Division National Center for Atmospheric Research Boulder, CO 80307-3000 Introduction The concept of an Integrated Data Assimilation and Sounding System (IDASS) ensures that the needs of data collection are partly determined by the requirements of an assimilating mesoscale model. Hence, the sounding strategy is geared towards allowing the model to do the best possible job in representing the atmosphere over CART sites, for example. It is not clear a priori what density of coverage or types of data are required for a good simulation. In this work, we address the problem of determining the impact of varying the density of coverage of an idea! network by purely numerical experimentation. We use one model run to provide data and another independent run to assimilate it.

2

On the effect of the steady-state approximation in time-space composite studies of mesoscale convective systems  

E-Print Network [OSTI]

ON THE EFFECT OF THE STRA 'Y-STATE APPROXIMATION IN TIME-SPACE COMPOSITE STUDIES OF MESOSCALE CONVECTIVE SYSTEMS A Thesis KEVIN MORGAN MATTISON Subnitted to the Office of Graduate Studies of Texas A&M University in partial fulfillnent... of the requirements for the degree of MASTER OF SCIENCE Decenber 1992 Major Subject: Meteorology ON THE EFFECT OF THE STEADY-STATE APPROXINATIOH IN TIME-SPACE COMPOSITE STUDIES OF NESOSCALE COHVECTIVE SYSTENS A Thesis KEVIN MORGAN NATTISOH Approved as to style...

Mattison, Kevin Morgan

2012-06-07T23:59:59.000Z

3

Posters Mesoscale Simulations of Convective Systems with Data...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

7 Posters Mesoscale Simulations of Convective Systems with Data Assimilation During June 1993 in the Southern Great Plains J. Dudhia Mesoscale and Microscale Meteorology Division...

4

Parameterized Mesoscale Forcing Mechanisms for Initiating Numerically Simulated Isolated Multicellular Convection  

E-Print Network [OSTI]

Multicellular Convection ADRIAN M. LOFTUS* School of Meteorology, University of Oklahoma, Norman, Oklahoma DANIEL B. WEBER Center for Analysis and Prediction of Storms, University of Oklahoma, Norman, Oklahoma CHARLES A. DOSWELL III Cooperative Institute for Mesoscale Meteorological Studies, University of Oklahoma

Doswell III, Charles A.

5

Lagrangian study of transport and mixing in a mesoscale eddy street  

E-Print Network [OSTI]

We use dynamical systems approach and Lagrangian tools to study surface transport and mixing of water masses in a selected coastal region of the Japan Sea with moving mesoscale eddies associated with the Primorskoye Current. Lagrangian trajectories are computed for a large number of particles in an interpolated velocity field generated by a numerical regional multi-layer eddy-resolving circulation model. We compute finite-time Lyapunov exponents for a comparatively long period of time by the method developed and plot the Lyapunov synoptic map quantifying surface transport and mixing in that region. This map uncovers the striking flow structures along the coast with a mesoscale eddy street and repelling material lines. We propose new Lagrangian diagnostic tools --- the time of exit of particles off a selected box, the number of changes of the sign of zonal and meridional velocities --- to study transport and mixing by a pair of strongly interacting eddies often visible at sea-surface temperature satellite images in that region. We develop a technique to track evolution of clusters of particles, streaklines and material lines. The Lagrangian tools used allow us to reveal mesoscale eddies and their structure, to track different phases of the coastal flow, to find inhomogeneous character of transport and mixing on mesoscales and submesoscales and to quantify mixing by the values of exit times and the number of times particles wind around the eddy's center.

S. V. Prants; M. V. Budyansky; V. I. Ponomarev; M. Yu. Uleysky

2012-02-02T23:59:59.000Z

6

Meteorological Simulations of Ozone Episode Case Days during the 1996 Paso del Norte Ozone Study  

SciTech Connect (OSTI)

Meteorological simulations centered around the border cities of El Paso and Ciudad Juarez have been performed during an ozone episode that occurred on Aug. 13,1996 during the 1996 Paso del Norte Ozone Study field campaign. Simulations were petiormed using the HOTMAC mesoscale meteorological model using a 1,2,4, and 8 km horizontal grid size nested mesh system. Investigation of the vertical structure and evolution of the atmospheric boundary layer for the Aug. 11-13 time period is emphasized in this paper. Comparison of model-produced wind speed profiles to rawirisonde and radar profiler measurements shows reasonable agreement. A persistent upper-level jet was captured in the model simulations through data assimilation. In the evening hours, the model was not able to produce the strong wind direction shear seen in the radar wind profiles. Based on virtual potential temperature profile comparisons, the model appears to correctly simulate the daytime growth of the convective mixed layer. However, the model underestimates the cooling of the surface layer at night. We found that the upper-level jet significantly impacted the turbulence structure of the boundary layer, leading to relatively high turbulent kinetic energy (tke) values aloft at night. The model indicates that these high tke values aloft enhance the mid-morning growth of the boundary layer. No upper-level turbulence measurements were available to verify this finding, however. Radar profiler-derived mixing heights do indicate relatively rapid morning growth of the mixed layer.

Brown, M.J.; Costigan, K.; Muller, C.; Wang, G.

1999-02-01T23:59:59.000Z

7

Lagrangian study of transport and mixing in a mesoscale eddy street  

E-Print Network [OSTI]

We use dynamical systems approach and Lagrangian tools to study surface transport and mixing of water masses in a selected coastal region of the Japan Sea with moving mesoscale eddies associated with the Primorskoye Current. Lagrangian trajectories are computed for a large number of particles in an interpolated velocity field generated by a numerical regional multi-layer eddy-resolving circulation model. We compute finite-time Lyapunov exponents for a comparatively long period of time by the method developed and plot the Lyapunov synoptic map quantifying surface transport and mixing in that region. This map uncovers the striking flow structures along the coast with a mesoscale eddy street and repelling material lines. We propose new Lagrangian diagnostic tools --- the time of exit of particles off a selected box, the number of changes of the sign of zonal and meridional velocities --- to study transport and mixing by a pair of strongly interacting eddies often visible at sea-surface temperature satellite imag...

Prants, S V; Ponomarev, V I; Uleysky, M Yu; 10.1016/j.ocemod.2011.02.008

2012-01-01T23:59:59.000Z

8

Mesoscale Climatic Simulation of Surface Air Temperature Cooling by Highly  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mesoscale Climatic Simulation of Surface Air Temperature Cooling by Highly Mesoscale Climatic Simulation of Surface Air Temperature Cooling by Highly Reflective Greenhouses in SE Spain Title Mesoscale Climatic Simulation of Surface Air Temperature Cooling by Highly Reflective Greenhouses in SE Spain Publication Type Journal Article Year of Publication 2013 Authors Campra, Pablo, and Dev Millstein Journal Environmental Science & Technology Volume 47 Issue 21 Pagination 12284 - 12290 Date Published 11/2013 ISSN 0013-936X Keywords buildings, Heat Island Group Abstract A long-term local cooling trend in surface air temperature has been monitored at the largest concentration of reflective greenhouses in the world, at the Province of Almeria, SE Spain, associated with a dramatic increase in surface albedo in the area. The availability of reliable long-term climatic field data at this site offers a unique opportunity to test the skill of mesoscale meteorological models describing and predicting the impacts of land use change on local climate. Using the Weather Research and Forecast (WRF) mesoscale model, we have run a sensitivity experiment to simulate the impact of the observed surface albedo change on monthly and annual surface air temperatures. The model output showed a mean annual cooling of 0.25 °C associated with a 0.09 albedo increase, and a reduction of 22.8 W m-2 of net incoming solar radiation at surface. Mean reduction of summer daily maximum temperatures was 0.49 °C, with the largest single-day decrease equal to 1.3 °C. WRF output was evaluated and compared with observations. A mean annual warm bias (MBE) of 0.42 °C was estimated. High correlation coefficients (R2 > 0.9) were found between modeled and observed values. This study has particular interest in the assessment of the potential for urban temperature cooling by cool roofs deployment projects, as well as in the evaluation of mesoscale climatic models performance.

9

Numerical study of wind energy characteristics over heterogeneous terrain Central Israel case study  

Science Journals Connector (OSTI)

A numerical mesoscale meteorological model has been applied over the heterogeneous terrain of central Israel in order to study wind energy characteristics of three typical synoptic situations. The supportive n...

Mordecay Segal; Ytzhaq Mahrer; Roger A. Pielke

1982-03-01T23:59:59.000Z

10

The reduction of plankton biomass induced by mesoscale stirring: a modeling study in the Benguela upwelling  

E-Print Network [OSTI]

Recent studies, both based on remote sensed data and coupled models, showed a reduction of biological productivity due to vigorous horizontal stirring in upwelling areas. In order to better understand this phenomenon, we consider a system of oceanic flow from the Benguela area coupled with a simple biogeochemical model of Nutrient-Phyto-Zooplankton (NPZ) type. For the flow three different surface velocity fields are considered: one derived from satellite altimetry data, and the other two from a regional numerical model at two different spatial resolutions. We compute horizontal particle dispersion in terms of Lyapunov Exponents, and analyzed their correlations with phytoplankton concentrations. Our modelling approach confirms that in the south Benguela there is a reduction of biological activity when stirring is increased. Two-dimensional offshore advection and latitudinal difference in Primary Production, also mediated by the flow, seem to be the dominant processes involved. We estimate that mesoscale processes are responsible for 30 to 50% of the offshore fluxes of biological tracers. In the northern area, other factors not taken into account in our simulation are influencing the ecosystem. We suggest explanations for these results in the context of studies performed in other eastern boundary upwelling areas.

Ismael Hernndez-Carrasco; Vincent Rossi; Emilio Hernndez-Garca; Veronique Garon; Cristbal Lpez

2013-11-05T23:59:59.000Z

11

Dr. Droegemeier METR 4433 Mesoscale Meteorology  

E-Print Network [OSTI]

supercritical and subcritical flow in the context of mountain waves. 9. Understand the concept of linear of shallow water wave theory to downslope windstorms and the assumptions made. 15. Understand the physical difference between supercritical and subcritical flow in the context of downslope wind storms. 16. Understand

Droegemeier, Kelvin K.

12

Simulating Typhoon Floods with Gauge Data and Mesoscale-Modeled Rainfall in a Mountainous Watershed  

Science Journals Connector (OSTI)

A physically based distributed hydrological model was applied to simulate typhoon floods over a mountainous watershed in Taiwan. The meteorological forcings include the observed gauge rainfall data and the predicted rainfall data from a mesoscale ...

Ming-Hsu Li; Ming-Jen Yang; Ruitang Soong; Hsiao-Ling Huang

2005-06-01T23:59:59.000Z

13

Improvement of weather analysis in isolated areas of the southern hemisphere by meteorological satellite information: a case study.  

E-Print Network [OSTI]

IMPROVEMENT OF WEATHER ANALYSIS IN ISOLATED AREAS OF THE SOUTHERN HEMISPHERE BY METEOROLOGICAL SATELLITE INFORMATION: A CASE STUDY A Thesis By JOSE ANGEL ALVAREZ Argentine Navy Submitted to the Graduate School of the Agricultural... and Mechanical College of Texas in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1963 Major Subject: METEOROLOGY IMPROVEMENT OF WEATHER ANALYSIS IN ISOLATED AREAS OF THE SOUTHERN HEMISPHERE BY METEOROLOGICAL SATELLITE...

Alvarez, Jose? Angel

2012-06-07T23:59:59.000Z

14

THE NEW YORK MIDTOWN DISPERSION STUDY (MID-05) METEOROLOGICAL DATA REPORT.  

SciTech Connect (OSTI)

The New York City midtown dispersion program, MID05, examined atmospheric transport in the deep urban canyons near Rockefeller Center. Little is known about air flow and hazardous gas dispersion under such conditions, since previous urban field experiments have focused on small to medium sized cities with much smaller street canyons and examined response over a much larger area. During August, 2005, a series of six gas tracer tests were conducted and sampling was conducted over a 2 km grid. A critical component of understanding gas movement in these studies is detailed wind and meteorological information in the study zone. To support data interpretation and modeling, several meteorological stations were installed at street level and on roof tops in Manhattan. In addition, meteorological data from airports and other weather instrumentation around New York City were collected. This document describes the meteorological component of the project and provides an outline of data file formats for the different instruments. These data provide enough detail to support highly-resolved computational simulations of gas transport in the study zone.

REYNOLDS,R.M.; SULLIVAN, T.M.; SMITH, S.; CASSELLA, V.

2007-01-01T23:59:59.000Z

15

A Climatological Study of Boundary Layer Wind Speed Using a Meso-?-Scale Higher-Order Closure Model  

Science Journals Connector (OSTI)

A mesoscale higher-order closure atmospheric boundary layer model has been used to get more detailed information than is possible from observations regarding horizontal and vertical variations of the wind in an area in southeastern Sweden. To ...

Hans Bergstrm

1996-08-01T23:59:59.000Z

16

WIND ATLAS FOR EGYPT: MEASUREMENTS, MICRO-AND MESOSCALE MODELLING  

E-Print Network [OSTI]

WIND ATLAS FOR EGYPT: MEASUREMENTS, MICRO- AND MESOSCALE MODELLING Niels G. Mortensen1 , Jens Energy Authority, Cairo, Egypt Ahmed El Sayed Yousef, Adel Mahmoud Awad, Mahmoud Abd-El Raheem Ahmed Meteorological Authority, Cairo, Egypt ABSTRACT The results of a comprehensive, 8-year wind resource assessment

17

A numerical study of the mesoscale eddy dynamics of the Leeuwin Current system.  

E-Print Network [OSTI]

??[Truncated abstract] The study of eastern ocean boundary currents has been principally restricted to the Pacific and Atlantic ocean regions. The traditional view of the (more)

Meuleners, Michael Joseph

2005-01-01T23:59:59.000Z

18

Mesoscale model cloud scheme assessment using satellite observations Jean-Pierre Chaboureau, Jean-Pierre Cammas, Patrick J. Mascart, and Jean-Pierre Pinty  

E-Print Network [OSTI]

of the convective towers in the generation of synthetic BT maps. INDEX TERMS: 3329 Meteorology and Atmospheric-scale cloudiness in the model. A similar test conducted on the ice water and the liquid water paths confirms Dynamics: Mesoscale meteorology; 3360 Meteorology and Atmospheric Dynamics: Remote sensing; 3354

Chaboureau, Jean-Pierre

19

Study of Friction at the Mesoscale using Nitinol Shape Memory Alloy  

E-Print Network [OSTI]

Elastic and dissipative properties of a NiTi shape memory alloy have been studied in both the martensite and austenite phases, using the free-decay of a vibrating Nitinol wire. The influence of air was estimated from a martensite measurement in vacuum.

Randall D. Peters

2003-08-19T23:59:59.000Z

20

Lipid-Based Nanodiscs as Models for Studying Mesoscale Coalescence A Transport Limited Case  

SciTech Connect (OSTI)

Lipid-based nanodiscs (bicelles) are able to form in mixtures of long- and short-chain lipids. Initially, they are of uniform size but grow upon dilution. Previously, nanodisc growth kinetics have been studied using time-resolved small angle neutron scattering (SANS), a technique which is not well suited for probing their change in size immediately after dilution. To address this, we have used dynamic light scattering (DLS), a technique which permits the collection of useful data in a short span of time after dilution of the system. The DLS data indicate that the negatively charged lipids in nanodiscs play a significant role in disc stability and growth. Specifically, the charged lipids are most likely drawn out from the nanodiscs into solution, thereby reducing interparticle repulsion and enabling the discs to grow. We describe a population balance model, which takes into account Coulombic interactions and adequately predicts the initial growth of nanodiscs with a single parameter i.e., surface potential. The results presented here strongly support the notion that the disc coalescence rate strongly depends on nanoparticle charge density. The present system containing low-polydispersity lipid nanodiscs serves as a good model for understanding how charged discoidal micelles coalesce.

Hu, Andrew [University of Connecticut, Storrs; Fan, Tai-Hsi [University of Connecticut, Storrs; Katsaras, John [ORNL; Xia, Yan [University of Connecticut, Storrs; Li, Ming [University of Connecticut, Storrs; Nieh, Mu-Ping [University of Connecticut, Storrs

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Mesoscale hybrid calibration artifact  

DOE Patents [OSTI]

A mesoscale calibration artifact, also called a hybrid artifact, suitable for hybrid dimensional measurement and the method for make the artifact. The hybrid artifact has structural characteristics that make it suitable for dimensional measurement in both vision-based systems and touch-probe-based systems. The hybrid artifact employs the intersection of bulk-micromachined planes to fabricate edges that are sharp to the nanometer level and intersecting planes with crystal-lattice-defined angles.

Tran, Hy D. (Albuquerque, NM); Claudet, Andre A. (Albuquerque, NM); Oliver, Andrew D. (Waltham, MA)

2010-09-07T23:59:59.000Z

22

Meteorological Notes  

Science Journals Connector (OSTI)

... pleasure of recording the commencement of the publication of meteorological observations in the Boletin de Estadistica of Puebla (Mexico). Observations taken three times a clay are published for several ...

1887-11-17T23:59:59.000Z

23

ADVANCES IN ATMOSPHERIC SCIENCES, VOL. 27, NO. 2, 2010, 243252 Mesoscale Barotropic Instability of Vortex Rossby  

E-Print Network [OSTI]

ADVANCES IN ATMOSPHERIC SCIENCES, VOL. 27, NO. 2, 2010, 243­252 Mesoscale Barotropic Instability of Vortex Rossby Waves in Tropical Cyclones ZHONG Wei1 ( Í), LU Han-Cheng1 (ö ), and Da-Lin ZHANG2 1 Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101 2 Department

Zhang, Da-Lin

24

TY JOUR T1 Mesoscale Climatic Simulation of Surface Air Temperature Cooling  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mesoscale Climatic Simulation of Surface Air Temperature Cooling Mesoscale Climatic Simulation of Surface Air Temperature Cooling by Highly Reflective Greenhouses in SE Spain JF Environmental Science Technology A1 Campra Pablo A1 Dev Millstein KW buildings KW Heat Island Group AB p span A long term local cooling trend in surface air temperature has been monitored at the largest concentration of reflective greenhouses in the world at the Province of Almeria SE Spain associated with a dramatic increase in surface albedo in the area The availability of reliable long term climatic field data at this site offers a unique opportunity to test the skill of mesoscale meteorological models describing and predicting the impacts of land use change on local climate Using the Weather Research and Forecast WRF mesoscale model we have run a

25

METEOROLOGICAL Bulletin of the American Meteorological Society  

E-Print Network [OSTI]

Science Foundation.36 37 #12;2 Capsule Summary1 The Community Earth System Model provides the research for earth system15 studies, making it a true community tool. Here we describe this earth system model, its16 at the above DOI once it is available. © 2013 American Meteorological Society #12;1 The Community Earth System

26

MESOSCALE SIMULATIONS OF POWDER COMPACTION  

SciTech Connect (OSTI)

Mesoscale 3D simulations of shock compaction of metal and ceramic powders have been performed with an Eulerian hydrocode GEODYN. The approach was validated by simulating a well-characterized shock compaction experiment of a porous ductile metal. Simulation results using the Steinberg material model and handbook values for solid 2024 aluminum showed good agreement with experimental compaction curves and wave profiles. Brittle ceramic materials are not as well studied as metals, so a simple material model for solid ceramic (tungsten carbide) has been calibrated to match experimental compaction curves. Direct simulations of gas gun experiments with ceramic powders have been performed and showed good agreement with experimental data. The numerical shock wave profile has same character and thickness as that measured experimentally using VISAR. The numerical results show reshock states above the single-shock Hugoniot line as observed in experiments. We found that for good quantitative agreement with experiments 3D simulations are essential.

Lomov, Ilya; Fujino, Don; Antoun, Tarabay; Liu, Benjamin [Lawrence Livermore National Laboratory, P. O. Box 808, Livermore CA 94551 (United States)

2009-12-28T23:59:59.000Z

27

Selected Studies in Mountain Meteorology From Downslope Windstorms to Air Pollution Transport  

E-Print Network [OSTI]

strong wind shear and triggers shear-flow instability, which leads to the formation of a turbulent wake of Innsbruck by Alexander Gohm Innsbruck, April 2010 #12;#12;To Eva mountain wind i #12;ii #12;Preface in the field of mountain meteorology form the basis of this habilitation thesis. The overall goal is to improve

Gohm, Alexander

28

Using Mesoscale Meteorological Models to Assess Wind Energy Potential.  

E-Print Network [OSTI]

??As the demand for safe and clean electricity increases, the New Zealand wind energy industry seems poised to expand. Many generating companies have projects in (more)

Green, Michael Paul

2005-01-01T23:59:59.000Z

29

Mesoscale Simulations of Power Compaction  

SciTech Connect (OSTI)

Mesoscale 3D simulations of metal and ceramic powder compaction in shock waves have been performed with an Eulerian hydrocode GEODYN. The approach was validated by simulating shock compaction of porous well-characterized ductile metal using Steinberg material model. Results of the simulations with handbook values for parameters of solid 2024 aluminum have good agreement with experimental compaction curves and wave profiles. Brittle ceramic materials are not so well studied as metals, so material model for ceramic (tungsten carbide) has been fitted to shock compression experiments of non-porous samples and further calibrated to match experimental compaction curves. Direct simulations of gas gun experiments with ceramic powder have been performed and showed good agreement with experimental data. Numerical shock wave profile has same character and thickness as measured with VISAR. Numerical results show reshock states above the single-shock Hugoniot line also observed in experiments. They found that to receive good quantitative agreement with experiment it is essential to perform 3D simulations.

Lomov, I; Fujino, D; Antoun, T; Liu, B

2009-08-06T23:59:59.000Z

30

Some Applications of Meteorology to Underwater Ambient Noise Studies in Block Island Sound  

Science Journals Connector (OSTI)

Turbulent atmospheric boundary?layer theory is applied to wind observations made over a shallow?water embayment to explain variations in ambient noise levels. Broad?band ambient?noise data for sea states up to 3 obtained at a fixed receiving site are presented for a shallow water acoustic test range in Block IslandSound. Hourly wind?speed averages are analyzed by means of spectra and covariance functions in order to compare the frequency composition of the acoustic and meteorological data. The power spectrum computed from the record of ambient noise pressure level as a function of time has significant peaks centered on frequencies of 0.04 and 0.10. Similar peaks at the corresponding frequencies are present in the spectra of wind speeds. The results of this experiment suggest that for wind speed fluctuations of less than 0.33 nonlinear effects of the wind are relatively unimportant in the generation of ambient noise.

Llyod C. Huff; Robert G. Williams

1967-01-01T23:59:59.000Z

31

Mesoscale Self-Assembly of Hexagonal Plates Using Lateral Capillary Forces: Synthesis Using the "Capillary Bond"  

E-Print Network [OSTI]

Mesoscale Self-Assembly of Hexagonal Plates Using Lateral Capillary Forces: Synthesis Using examines self-assembly in a quasi-two-dimensional, mesoscale system. The system studied here involves and hydrophilic faces on the hexagonal plates led to three outcomes: (i) the extension of the strategies of self-assembly

Prentiss, Mara

32

Career Map: Meteorological Technician  

Broader source: Energy.gov [DOE]

The Wind Program's Career Map provides job description information for Meteorological Technician positions.

33

ARM - Publications: Science Team Meeting Documents: Evaluation of mesoscale  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Evaluation of mesoscale model cloud simulations of the March 2000 IOP Evaluation of mesoscale model cloud simulations of the March 2000 IOP Tselioudis, George NASA/Goddard Institute for Space Studies A suite of mesoscale models was used to produce month-long runs of the March 2000 SGP IOP. The model cloud fields were evaluated against satellite and in-situ observations, using both monthly statistics of cloud properties and instantaneous cloud property distributions. It was found that compared to satellite retrievals models tend to overestimate cloud optical thickness in all dynamic regimes. The reasons for the differences in satellite and model cloud fields were investigated. Preliminary results indicate that the large model optical depths may be caused by an overestimate of cloud ice water amounts in the model simulations. Part of the differences, however,

34

Meso-scale machining capabilities and issues  

SciTech Connect (OSTI)

Meso-scale manufacturing processes are bridging the gap between silicon-based MEMS processes and conventional miniature machining. These processes can fabricate two and three-dimensional parts having micron size features in traditional materials such as stainless steels, rare earth magnets, ceramics, and glass. Meso-scale processes that are currently available include, focused ion beam sputtering, micro-milling, micro-turning, excimer laser ablation, femto-second laser ablation, and micro electro discharge machining. These meso-scale processes employ subtractive machining technologies (i.e., material removal), unlike LIGA, which is an additive meso-scale process. Meso-scale processes have different material capabilities and machining performance specifications. Machining performance specifications of interest include minimum feature size, feature tolerance, feature location accuracy, surface finish, and material removal rate. Sandia National Laboratories is developing meso-scale electro-mechanical components, which require meso-scale parts that move relative to one another. The meso-scale parts fabricated by subtractive meso-scale manufacturing processes have unique tribology issues because of the variety of materials and the surface conditions produced by the different meso-scale manufacturing processes.

BENAVIDES,GILBERT L.; ADAMS,DAVID P.; YANG,PIN

2000-05-15T23:59:59.000Z

35

Meteorology of the Persian Gulf and Mekran  

Science Journals Connector (OSTI)

... UTNTIL after an international aerial route had been established along the Persian coast, meteorological information for this region was very scanty; the systematic study of its ... Ocean.

E. V. N.

1932-04-30T23:59:59.000Z

36

Meso-scale eddies affect near-surface turbulent exchange: evidence from lidar and tower measurements  

Science Journals Connector (OSTI)

The eddy-covariance technique tends to underestimate the turbulent heat fluxes, which results in the non-closure of the surface energy balance. This study shows experimental evidence that meso-scale turbulent organized structures, which are ...

Fabian Eder; Marius Schmidt; Thomas Damian; Katja Trumner; Matthias Mauder

37

Towards quantifying mesoscale flows in the troposphere using Raman lidar and sondes  

SciTech Connect (OSTI)

Water vapor plays an important role in the energetics of the boundary layer processes which in turn play a key role in regulating regional and global climate. It plays a primary role in Earth`s hydrological cycle, in radiation balance as a direct absorber of infrared radiation, and in atmospheric circulation as a latent heat energy source as well as in determining cloud development and atmospheric stability. Water vapor concentration, expressed as a mass mixing ratio, is conserved in all meteorological processes except condensation and evaporation. This property makes it an ideal choice for studying many of the atmosphere`s dynamic features. Raman scattering measurements from lidar also allow retrieval of water vapor mixing ratio profiles at high temporal and vertical resolution. Raman lidars sense water vapor to altitudes not achievable with towers and surface systems, sample the atmosphere at much higher temporal resolution than radiosondes or satellites, and do not require strong vertical gradients or turbulent fluctuations in temperature that is required by acoustic sounders and radars. Analysis of highly resolved water vapor profiles are used here to characterize two important mesoscale flows: thunderstorm outflows and a cold front passage.

Demoz, B.; Evans, K. [Univ. of Maryland Baltimore County, Baltimore, MD (United States); Starr, D. [NASA, Greenbelt, MD (United States). Goddard Space Flight Center] [and others

1998-03-01T23:59:59.000Z

38

Mesoscale Quantization and Self-Organized Stability  

E-Print Network [OSTI]

In the world of technology, one of the most important forms of friction is that of rolling friction. Yet it is one of the least studied of all the known forms of energy dissipation. In the present experiments we investigate the oscillatory free-decay of a rigid cube, whose side-length is less than the diameter of the rigid cylinder on which it rests. The resulting free-decay is one of harmonic motion with damping. The non-dissipative character of the oscillation yields to a linear differential equation; however, the damping is found to involve more than a deterministic nonlinearity. Dominated by rolling friction, the damping is sensitive to the material properties of the contact surfaces. For `clean' surfaces of glass on glass, the decay shows features of mesoscale quantization and self-organized stability.

Randall D. Peters

2005-06-16T23:59:59.000Z

39

JANUARY 2004 157Z H A N G A N D Z H E N G 2004 American Meteorological Society  

E-Print Network [OSTI]

JANUARY 2004 157Z H A N G A N D Z H E N G 2004 American Meteorological Society Diurnal Cycles is evaluated using the 3-day mesoscale simulations of summertime weak-gradient flows over the central United is directed upward after sunrise. As more solar energy is absorbed by the earth's surface, free convective

Zhang, Da-Lin

40

Convective cell development and propagation in a mesoscale convective complex  

E-Print Network [OSTI]

~ , National Fisheries University of Pusan Chairman of Advisory Committee: Dr ~ Kennth CD Brundidge A case study was made of the mesoscale convective complex (MCC) which occurred over southern Oklahoma and northern Texas on 27 May 1981. This storm moved... in an east-southeasterly direction and during much of its lifetime was observable by radars at Oklahoma City, OK and Stephenville, TX. It was found that the direction of cell (VIP level 3 or more reflectivity) propagation was somewhat erratic...

Ahn, Yoo-Shin

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Postulated Mesoscale Quantum of Internal Friction Hysteresis  

E-Print Network [OSTI]

Evidence is provided, from yet another experiment, for the existence of a mesoscale quantum of internal friction hysteresis, having the value of the electron rest energy divided by the fine structure constant.

Randall D. Peters

2004-05-27T23:59:59.000Z

42

Oceanic mass transport by mesoscale eddies  

Science Journals Connector (OSTI)

...time-mean ocean circulation transports fluid as a conveyor belt, but fluid parcels can also be trapped and transported discretely...continuously, mesoscale eddies can trap fluid parcels within the eddy core and transport them discretely...

Zhengguang Zhang; Wei Wang; Bo Qiu

2014-07-18T23:59:59.000Z

43

Heuristic correction of wind speed mesoscale models simulations for wind farms prospecting and micrositing  

Science Journals Connector (OSTI)

Abstract The distribution of surface-level wind speeds over a given area is important information that is related to several processes in wind farm prospecting, design and micrositing. This information is often obtained from simulations using mesoscale models that take variables from global models as starting points. Improved outputs from mesoscale models can lead to reduced error compared to real wind speeds in the study area if in situ wind speed measurements are available. In this paper, we present several techniques to correct surface wind speed simulations from mesoscale models using data from measuring stations in wind farms. Specifically, we propose different heuristic corrections of the outputs from mesoscale models by means of surface fitting between the Weibull parameters of the wind speed series (from the mesoscale model) and those from the measuring stations (real wind speed) in the wind farm. The proposed methodology has direct applications in wind farm design, site prospection and micrositing. The good performance of our method is evident in the more accurate surface wind speeds obtained from mesoscale models in two wind farm prospection sites in Spain, where several measuring towers are installed.

B. Saavedra-Moreno; S. Salcedo-Sanz; C. Casanova-Mateo; J.A. Portilla-Figueras; L. Prieto

2014-01-01T23:59:59.000Z

44

European Meteorological Telecommunications Panel  

Science Journals Connector (OSTI)

... under the auspices of the International Meteorological Organisation, which recently decided to establish a meteorological telecommunications panel under each of its six regional commissions. This was the first meeting of ... meeting of the panel for the European region, and it was attended by meteorologists and telecommunications experts from Belgium, Eire, France, Great Britain, Italy, Netherlands, Norway (also ...

1948-07-24T23:59:59.000Z

45

Mesoscale Modeling of LX-17 Under Isentropic Compression  

SciTech Connect (OSTI)

Mesoscale simulations of LX-17 incorporating different equilibrium mixture models were used to investigate the unreacted equation-of-state (UEOS) of TATB. Candidate TATB UEOS were calculated using the equilibrium mixture models and benchmarked with mesoscale simulations of isentropic compression experiments (ICE). X-ray computed tomography (XRCT) data provided the basis for initializing the simulations with realistic microstructural details. Three equilibrium mixture models were used in this study. The single constituent with conservation equations (SCCE) model was based on a mass-fraction weighted specific volume and the conservation of mass, momentum, and energy. The single constituent equation-of-state (SCEOS) model was based on a mass-fraction weighted specific volume and the equation-of-state of the constituents. The kinetic energy averaging (KEA) model was based on a mass-fraction weighted particle velocity mixture rule and the conservation equations. The SCEOS model yielded the stiffest TATB EOS (0.121{micro} + 0.4958{micro}{sup 2} + 2.0473{micro}{sup 3}) and, when incorporated in mesoscale simulations of the ICE, demonstrated the best agreement with VISAR velocity data for both specimen thicknesses. The SCCE model yielded a relatively more compliant EOS (0.1999{micro}-0.6967{micro}{sup 2} + 4.9546{micro}{sup 3}) and the KEA model yielded the most compliant EOS (0.1999{micro}-0.6967{micro}{sup 2}+4.9546{micro}{sup 3}) of all the equilibrium mixture models. Mesoscale simulations with the lower density TATB adiabatic EOS data demonstrated the least agreement with VISAR velocity data.

Springer, H K; Willey, T M; Friedman, G; Fried, L E; Vandersall, K S; Baer, M R

2010-03-06T23:59:59.000Z

46

meteorologic | OpenEI  

Open Energy Info (EERE)

meteorologic meteorologic Dataset Summary Description (Abstract): A data set of hourly values of solar radiation and meteorological elements for a 1-year period. (Purpose): Simulations Source NREL Date Released August 02nd, 2004 (10 years ago) Date Updated November 07th, 2007 (7 years ago) Keywords GEF meteorologic NREL Sri Lanka SWERA TMY UNEP Data application/zip icon Download Data (zip, 2.4 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period 1973 - 2002 License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating Average vote Your vote

47

WORLD METEOROLOGICAL ORGANIZATION  

E-Print Network [OSTI]

of marine surface winds from ships and buoys . . . . . . . . . . . 27 Report on Beaufort equivalent scales detection in gridded ship data sets . . . . . . . . . . . . . . . . . . . . . . . . . 177 A methodology/IOC TECHNICAL COMMISSION FOR OCEANOGRAPHY AND MARINE METEOROLOGY ADVANCES IN THE APPLICATIONS OF MARINE

Lindau, Ralf

48

Evaluation of Ensemble Configurations for the Analysis and Prediction of Heavy-Rain-Producing Mesoscale Convective Systems  

Science Journals Connector (OSTI)

This study investigates probabilistic forecasts made using different convection-allowing ensemble configurations for a three-day period in June 2010 when numerous heavy-rain-producing mesoscale convective systems (MCSs) occurred in the United ...

Russ S. Schumacher; Adam J. Clark

2014-11-01T23:59:59.000Z

49

Solar Radiation Estimated Through Mesoscale Atmospheric Modeling over Northeast Brazil  

Science Journals Connector (OSTI)

The use of renewable energy sources like solar wind and biomass is rapidly increasing in recent years with solar radiation as a particularly abundant energy source over Northeast Brazil. A proper quantitative knowledge of the incoming solar radiation is of great importance for energy planning in Brazil serving as basis for developing future projects of photovoltaic power plants and solar energy exploitation. This work presents a methodology for mapping the incoming solar radiation at ground level for Northeast Brazil using a mesoscale atmospheric model (Regional Atmospheric Modeling SystemRAMS) calibrated and validated using data from the network of automatic surface stations from the State Foundation for Meteorology and Water Resources from Cear (Fundao Cearense de Meteorologia e Recursos Hdricos? FUNCEME). The results showed that the model exhibits systematic errors overestimating surface radiation but that after the proper statistical corrections using a relationship between the model?predicted cloud fraction the ground?level observed solar radiation and the incoming solar radiation estimated at the top of the atmosphere a correlation of 0.92 with a confidence interval of 13.5? W / m 2 is found for monthly data. Using this methodology we found an estimate for annual average incoming solar radiation over Cear of 215? W / m 2 (maximum in October: 260? W / m 2 ).

Otacilio Leandro de Menezes Neto; Alexandre Arajo Costa; Fernando Pinto Ramalho; Paulo Henrique Santiago de Maria

2009-01-01T23:59:59.000Z

50

Meteorological Effects on Solar Cells  

Science Journals Connector (OSTI)

30 June 1977 research-article Meteorological Effects on Solar Cells J. R. Mallinson P. T. Landsberg The effect of different meteorological conditions on solar cell outputs has been investigated...

1977-01-01T23:59:59.000Z

51

METEOROLOGICAL Journal of Climate  

E-Print Network [OSTI]

, the statistical estimates of the differences between the various air-sea heat flux products tend to be largest. © 201 American Meteorological Society1 #12;A comparison of Southern Ocean air-sea buoyancy flux from an ocean state estimate with five other products Ivana Cerovecki, Lynne D. Talley and Matthew R. Mazloff

Talley, Lynne D.

52

Mesoscale energetics and ows induced by sea-land and mountain-valley contrasts  

E-Print Network [OSTI]

Mesoscale energetics and ¯ows induced by sea-land and mountain-valley contrasts S. Federico1 , G. A October 1999 Abstract. We study the relative importance of sea-land and mountain-valley thermal contrasts and the west-facing slopes in the afternoon. The local thermally driven winds follow the development

Paris-Sud XI, Université de

53

Evaluation of mesoscale convective systems in South America using multiple satellite products and an objectbased approach  

E-Print Network [OSTI]

Evaluation of mesoscale convective systems in South America using multiple satellite products­2003 in the La Plata river basin, southeastern South America, were analyzed with the Contiguous Rain Area (CRA; Salby and Callaghan, 1997]. However, in South America, few studies have assessed the validity

Ebert, Beth

54

Radar, satellite, and lightning characteristics of select mesoscale convective systems in Texas  

E-Print Network [OSTI]

This study compares radar data from the League City, Texas WSR-88D and cloud-to-ground (CG) lightning data for a set of eight mesoscale convective systems (MCSs) which occur at various stages of development along the upper Texas Gulf Coast. Vertical...

Toracinta, Ernest Richard

2012-06-07T23:59:59.000Z

55

Mesoscale Convective Systems and Their Synoptic-scale Environment in Finland  

Science Journals Connector (OSTI)

The environments which high-latitude intense and non-intense mesoscale convective systems (iMCSs and niMCSs) and smaller thunderstorm clusters (subMCS) develop in were studied using proximity soundings. Eight-year MCS statistics were created by ...

ARI-JUHANI PUNKKA; MARJA BISTER

56

A Process-Oriented Methodology Toward Understanding the Organization of an Extensive Mesoscale Snowband: A Diagnostic Case Study of 45 December 1999  

Science Journals Connector (OSTI)

A case study of a long, narrow band of heavy snowfall is presented that illustrates those processes that force and focus the precipitation in a unique linear fashion. System-relative flow on isentropic surfaces shows how the trough of warm air ...

James T. Moore; Charles E. Graves; Sam Ng; Jamie L. Smith

2005-02-01T23:59:59.000Z

57

Formation of mesoscale roughening in 6022-T4 Al sheets deformed in plane-strain tension  

Science Journals Connector (OSTI)

Mesoscale surface-roughening evolution in 6022-T4 Al sheets was ... are central to the formation of mesoscale surface roughening.

Y. S. Choi; H. R. Piehler; A. D. Rollett

2004-02-01T23:59:59.000Z

58

Meteorological aspects of siting large wind turbines  

SciTech Connect (OSTI)

This report, which focuses on the meteorological aspects of siting large wind turbines (turbines with a rated output exceeding 100 kW), has four main goals. The first is to outline the elements of a siting strategy that will identify the most favorable wind energy sites in a region and that will provide sufficient wind data to make responsible economic evaluations of the site wind resource possible. The second is to critique and summarize siting techniques that were studied in the Department of Energy (DOE) Wind Energy Program. The third goal is to educate utility technical personnel, engineering consultants, and meteorological consultants (who may have not yet undertaken wind energy consulting) on meteorological phenomena relevant to wind turbine siting in order to enhance dialogues between these groups. The fourth goal is to minimize the chances of failure of early siting programs due to insufficient understanding of wind behavior.

Hiester, T.R.; Pennell, W.T.

1981-01-01T23:59:59.000Z

59

A coupled mesoscalemicroscale framework for wind resource estimation and farm aerodynamics  

Science Journals Connector (OSTI)

Abstract This study discusses the development of a coupled mesoscalemicroscale framework for wind resource estimation and farm aerodynamics. WINDWYO is a computational framework for performing coupled mesoscalemicroscale simulations. The framework is modular, automated and supports coupling of different mesoscale and microscale solvers using overset or matched grids. The modular nature of the framework and the support for overset grids allows the independent development of mesoscale and microscale solvers and the efficient coupling between the codes. The performance of the framework is evaluated by coupling Weather Research and Forecasting (WRF) model with three microscale computational fluid dynamics (CFD) codes of varying complexity. The solvers used are: (i) UWake: a blade element model with free-vortex wake, (ii) Flowyo: large eddy simulation code with actuator line/disk parametrization of the wind turbine and (iii) HELIOS: detached eddy simulation code with full rotor modeling and adaptive mesh refinement. Power predictions and wake visualization of single turbine and off-shore Lillgrund wind farm in uniform and turbulent inflow are used to demonstrate the capabilities of the framework.

Harish Gopalan; Christopher Gundling; Kevin Brown; Beatrice Roget; Jayanarayanan Sitaraman; Jefferey D. Mirocha; Wayne O. Miller

2014-01-01T23:59:59.000Z

60

Sensitivity of the Simulated Distributions of Water Masses, CFCs, and Bomb 14C to Parameterizations of Mesoscale Tracer Transports in a Model of the North Pacific  

Science Journals Connector (OSTI)

A basinwide ocean general circulation model of the North Pacific Ocean is used to study the sensitivity of the simulated distributions of water masses, chlorofluorocarbons (CFCs), and bomb carbon-14 isotope (14C) to parameterizations of mesoscale ...

Yongfu Xu; Shigeaki Aoki; Koh Harada

2006-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Rotational and divergent kinetic energy in the mesoscale model ALADIN  

E-Print Network [OSTI]

Rotational and divergent kinetic energy in the mesoscale model ALADIN By V. BLAZ ICA1 *, N. Z AGAR1 received 7 June 2012; in final form 7 March 2013) ABSTRACT Kinetic energy spectra from the mesoscale. It is shown that about 50% of kinetic energy in the free troposphere in ALADIN is divergent energy

Zagar, Nedjeljka

62

Vision Statement for Research and Educationall Outreach for tl1e...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

P. J. lamb Cooperative Institute for Mesoscale Meteorological Studies K. C. Crawford Oklahoma Climatological Survey F. V. Brock School of Meteorology R. M. Rabin National Severe...

63

QUARTERLY JOURNAL ROYAL METEOROLOGICAL SOCIETY  

E-Print Network [OSTI]

flooding and heavy loss.In this paper we present a 12-hournumerical simulation of that eventby meansof. Meteorol. Soc. (1997), 123,pp. 537-559 Numerical simulation of an extreme rainfall event in Catalonia: Role, probably on account of the shortness of the simulation. KEYWORDS:Heavy rain Western Mediterranean Mesoscale

Romero, Romu

64

Meteorological Effects on Solar Cells  

Science Journals Connector (OSTI)

...research-article Meteorological Effects on Solar Cells J. R. Mallinson P. T. Landsberg...different meteorological conditions on solar cell outputs has been investigated, using a model for a solar cell (p-on-n or n-on-p) which...

1977-01-01T23:59:59.000Z

65

Mesoscale Data Assimilation for a Local Severe Rainfall Event with the NHMLETKF System  

Science Journals Connector (OSTI)

This study seeks to improve forecasts of local severe weather events through data assimilation and ensemble forecasting approaches using the local ensemble transform Kalman filter (LETKF) implemented with the Japan Meteorological Agencys ...

Masaru Kunii

2014-10-01T23:59:59.000Z

66

Analysis of Spatial Performance of Meteorological Drought Indices  

E-Print Network [OSTI]

by policy makers and the general public. This study analyzes the spatial performance of interpolation methods for meteorological drought indices in the United States based on data from the Co-operative Observer Network (COOP) and United States Historical...

Patil, Sandeep 1986-

2013-01-14T23:59:59.000Z

67

Sequence of surface meteorological variables with the passage of winter cold fronts in the United States east of the Rocky Mountains  

E-Print Network [OSTI]

and dramatically alter weather conditions. Since these surface boundaries often mark distinct weather changes, locating their positions and forecasting their movement is critical to accurate forecasting. By analyzing the timing of changes in meteorological... than synoptic-scale processes, depend upon accurate synoptic analysis. As Bosart (1989) so appropriately stated, "the evolution of mesoscale features is critically dependent upon the configuration of the synoptic-scale flow. " Therefore, forecasting...

Huckaby, Daniel Dale

2001-01-01T23:59:59.000Z

68

Coastal Wave Generation and Wave Breaking over Terrain: Two Problems in Mesoscale Wave Dynamics  

E-Print Network [OSTI]

with open circles). The resolved-scale eddy term is shown by stars (no line), with the background viscous part then being the di erence between the net resolved-scale and resolved-scale eddy parts. : : : : : : : : : : : 36 16 Schematic sea breeze system... breeze and mesoscale convective systems. Gravity wave momentum transport away from topography in particular plays an important role in the momentum budget of the atmosphere and hence the general circulation. The present study addresses two aspects...

Qian, Tingting

2010-07-14T23:59:59.000Z

69

An investigation of the rainfall distribution of a mesoscale network in Ecuador  

E-Print Network [OSTI]

provides a preliminary investigation of the mesoscale rainfall distribution of two geographical areas. The spatial distribution of rainfall at San Carlos, Ecuador, is compared with the spatial distribution at Riesel, Texas. This study is based upon..., 1964) at San Carlos and the daily rainfall of the 1960-1964 warm seasons (May through September) at Riesel. The isohyetal patterns and the depth-area relations show that rainfall often varies greatly over short dis- tances. A relationship exists...

Guest, Tommy Dean

2012-06-07T23:59:59.000Z

70

Satellite Observations of Mesoscale Eddy-Induced Ekman Pumping  

Science Journals Connector (OSTI)

Three mechanisms for self-induced Ekman pumping in the interiors of mesoscale ocean eddies are investigated. The first arises from the surface stress that occurs because of differences between surface wind and ocean velocities, resulting in Ekman ...

Peter Gaube; Dudley B. Chelton; Roger M. Samelson; Michael G. Schlax; Larry W. ONeill

71

Advances in mesoscale thermal management technologies for microelectronics  

Science Journals Connector (OSTI)

This paper presents recent advances in a number of novel, high-performance cooling techniques for emerging electronics applications. Critical enabling thermal management technologies covered include microchannel transport and micropumps, jet impingement, ... Keywords: Mesoscale, Microelctronics, Thermal management

Suresh V. Garimella

2006-11-01T23:59:59.000Z

72

Life Cycle and Mesoscale Frontal Structure of an Intermountain Cyclone  

Science Journals Connector (OSTI)

High-resolution analyses and MesoWest surface observations are used to examine the life cycle and mesoscale frontal structure of the Tax Day Storm, an intermountain cyclone that produced the second lowest sea level pressure observed in Utah ...

Gregory L. West; W. James Steenburgh

2010-07-01T23:59:59.000Z

73

Structures and Dynamics of Quasi-2D Mesoscale Convective Systems  

Science Journals Connector (OSTI)

Recently, three distinct archetypes for midlatitude linear mesoscale convective systems (MCSs) have been identified. This article focuses on the fundamentals of two of these archetypes: convective lines with trailing stratiform (TS) precipitation ...

Matthew D. Parker; Richard H. Johnson

2004-03-01T23:59:59.000Z

74

Toward a Mesoscale Observation Network in Southeast Asia  

Science Journals Connector (OSTI)

The current weather observation network in Southeast Asia is unable to support the accurate monitoring and prediction of the region's predominantly convective weather. Establishing a multisensor mesoscale observation network comprising automated ...

Tieh-Yong Koh; Chee-Kiat Teo

2009-04-01T23:59:59.000Z

75

EUMETSAT Geostationary Meteorological Satellite Programs  

Science Journals Connector (OSTI)

The EUMETSAT Application Ground Segment will be upgraded to accommodate the future processing requirements of MTG imager and sounder data. Both the Meteorological ... ) Network will be enhanced to accommodate the...

Declan Murphy

2013-01-01T23:59:59.000Z

76

Max-Planck-Institute for Meteorology, Hamburg, Germany Swedish Meteorological and Hydrological Institute, Norrkoping, Sweden  

E-Print Network [OSTI]

Institute, Norrko?ping, Sweden 3 Finnish Meteorological Institute, Helsinki, Finland 4 Rossby Centre, Norrko?ping, Sweden 5 German Weather Service, Offenbach, Germany 6 Institute for Marine Research, University of Kiel, Sweden A comprehensive model inter-comparison study investigating the water budget during the BALTEX

Lindau, Ralf

77

Modeling the Atmospheric Boundary Layer Wind Response to Mesoscale Sea Surface Temperature Perturbations  

Science Journals Connector (OSTI)

The wind speed response to mesoscale SST variability is investigated over the Agulhas Return Current region of the Southern Ocean using the Weather Research and Forecasting (WRF) Model and the U.S. Navy Coupled OceanAtmosphere Mesoscale ...

Natalie Perlin; Simon P. de Szoeke; Dudley B. Chelton; Roger M. Samelson; Eric D. Skyllingstad; Larry W. ONeill

2014-11-01T23:59:59.000Z

78

Mesoscale Origin of the Enhanced Cycling-Stability of the Si...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mesoscale Origin of the Enhanced Cycling-Stability of the Si-Conductive Polymer Anode for Li-ion Batteries. Mesoscale Origin of the Enhanced Cycling-Stability of the Si-Conductive...

79

Recipes for Correcting the Impact of Effective Mesoscale Resolution on the Estimation of Extreme Winds  

Science Journals Connector (OSTI)

Extreme winds derived from simulations using mesoscale models are underestimated because of the effective spatial and temporal resolutions. This is reflected in the spectral domain as an energy deficit in the mesoscale range. The energy deficit ...

Xiaoli Guo Larsn; Sren Ott; Jake Badger; Andrea N. Hahmann; Jakob Mann

2012-03-01T23:59:59.000Z

80

METR 4624--Radar Meteorology SPRING 2012  

E-Print Network [OSTI]

can be purchased at the Bookstore. [Note: This book covers fundamentals at an introductory level. We (1986), and Doppler Radar Meteorological Observations; Federal Meteorological Handbook No. 11 (Part B

Droegemeier, Kelvin K.

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

METR 4624--Radar Meteorology SPRING 2014  

E-Print Network [OSTI]

be purchased at the Bookstore. [Note: This book covers fundamentals at an introductory level. We will go well), and Doppler Radar Meteorological Observations; Federal Meteorological Handbook No. 11 (Part B) (1990). Grades

Droegemeier, Kelvin K.

82

Meteorological Network Expansion Using Information Decay Concept  

Science Journals Connector (OSTI)

A generalized network design methodology was developed by using the basic entropy concept introduced by Shannon in communication engineering. In order to select potential sites for meteorological network expansion purposes, the meteorological ...

Tahir Husain; Mustafa A. Ukayli; Hasin U. Khan

1986-03-01T23:59:59.000Z

83

Self-Assembly of Mesoscale Isomers: The Role of Pathways and Degrees of Freedom  

E-Print Network [OSTI]

Self-Assembly of Mesoscale Isomers: The Role of Pathways and Degrees of Freedom Shivendra Pandey1 geometric path sampling and a mesoscale experimental model to investigate the self-assembly of a model. Citation: Pandey S, Johnson D, Kaplan R, Klobusicky J, Menon G, et al. (2014) Self-Assembly of Mesoscale

Menon, Govind

84

Silicon Micromachined Dimensional Calibration Artifact for Mesoscale Measurement Machines  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Silicon Micromachined Dimensional Calibration Silicon Micromachined Dimensional Calibration Artifact for Mesoscale Measurement Machines 1 Silicon Micromachined Dimensional Calibration Artifact for Mesoscale Measurement Machines 2 Sandia National Laboratories PO Box 5800 Albuquerque, NM 87185 USA Hy D. Tran, PhD, PE Phone: (505)844-5417 Fax: (505)844-4372 hdtran@sandia.gov AFFIRMATION: I affirm that all information submitted as a part of, or supplemental to, this entry is a fair and accurate representation of this product. ___________________________________ Hy D. Tran Not a joint entry. Silicon Micromachined Dimensional Calibration Artifact for Mesoscale Measurement Machines The silicon hybrid artifact is an anisotropic-etched silicon standard that is used as a calibration reference artifact to calibrate vision-based and

85

Computational methods in wind power meteorology  

E-Print Network [OSTI]

Computational methods in wind power meteorology Bo Hoffmann Jørgensen, Søren Ott, Niels Nørmark, Jakob Mann and Jake Badger Title: Computational methods in wind power meteorology Department: Wind in connection with the project called Computational meth- ods in wind power meteorology which was supported

86

Diurnal cycle of air pollution in the Kathmandu Valley, Nepal: 2. Modeling results  

E-Print Network [OSTI]

After completing a 9-month field experiment studying air pollution and meteorology in the Kathmandu Valley, Nepal, we set up the mesoscale meteorological model MM5 to simulate the Kathmandu Valley's meteorology with a ...

Panday, Arnico K.

87

Meteorology: typical meteorological year data for selected stations in  

Open Energy Info (EERE)

Central America from NREL Central America from NREL Dataset Summary Description (Abstract): A data set of hourly values of solar radiation and meteorological elements for a 1-year period. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems.A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even

88

Meteorology: typical meteorological year data for selected stations in Cuba  

Open Energy Info (EERE)

Cuba Cuba from NREL Dataset Summary Description (Abstract): A data set of hourly values of solar radiation and meteorological elements for a 1-year period. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems.A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even

89

MESOSCALE MODELLING OF WIND ENERGY OVER NON-HOMOGENEOUS TERRAIN  

E-Print Network [OSTI]

MESOSCALE MODELLING OF WIND ENERGY OVER NON-HOMOGENEOUS TERRAIN (ReviewArticle) Y. MAHRER.1. OBSERVATIONALAPPROACHES Evaluations of wind energy based on wind observations (usually surface winds) at well, the resolution of the wind energy pattern throughout an extended area by this methodology requires a large number

Pielke, Roger A.

90

Mesoscale predictability of an extreme warm-season precipitation event  

E-Print Network [OSTI]

. The Penn State University/NCAR Mesoscale Model version 5 (MM5) was used to conduct predictability experiments, which follow closely to the research conducted by Zhang et al. A control simulation initialized at 00Z 1 July is established over a 30-km grid...

Odins, Andrew Michael

2005-02-17T23:59:59.000Z

91

Molecule-Mimetic Chemistry and Mesoscale Self-Assembly  

E-Print Network [OSTI]

Molecule-Mimetic Chemistry and Mesoscale Self-Assembly NED B. BOWDEN, MARCUS WECK, INSUNG S. CHOI systems. We suggest that it will be possible to develop complex structures composed of "objects" that self-assemble, shape recognition, and size exclusion can be used to guide the self-assembly of these objects

Prentiss, Mara

92

Mesoscale Waves as a Probe of Jupiter's Deep Atmosphere  

Science Journals Connector (OSTI)

Search of the Voyager images of Jupiter reveals a class of mesoscale waves occurring near the extrema of the zonal velocity profile between latitudes 30S and 30N. The average horizontal wavelength is 300 km, compared to an atmospheric scale ...

F. M. Flasar; P. J. Gierasch

1986-11-01T23:59:59.000Z

93

Mesoscale Science: Lessons from and Opportunities for Nanoscience  

Science Journals Connector (OSTI)

Earlier this month, I attended and spoke at a workshop of the Chemical Sciences Roundtable on mesoscale science. ... We hope that having ACS Nano to share both challenges and successes across communities will help accelerate advances by cross-fertilizing efforts and by inspiring scientists and engineers around the world. ...

Paul S. Weiss

2014-11-25T23:59:59.000Z

94

Mesoscale symmetries explain dynamical equivalence of food webs  

Science Journals Connector (OSTI)

A goal of complex system research is to identify the dynamical implications of network structure. While early results focused mainly on local or global structural properties, there is now growing interest in mesoscale structures that comprise more than one node but not the whole network. A central challenge is to discover under what conditions the occurrence of a specific mesoscale motif already allows conclusions on the dynamics of a network as a whole. In this paper, we investigate the dynamics of ecological food webs, complex heterogeneous networks of interacting populations. Generalizing the results of MacArthur and Snchez-Garca (2009 Phys. Rev. E 80 26117), we show that certain mesoscale symmetries imply the existence of localized dynamical modes. If these modes are unstable the occurrence of the corresponding mesoscale motif implies dynamical instability regardless of the structure of the embedding network. In contrast, if the mode is stable it means that the symmetry can be exploited to reduce the number of nodes in the model, without changing the dynamics of the system. This result explains a previously observed dynamical equivalence between food webs containing a different number of species.

Helge Aufderheide; Lars Rudolf; Thilo Gross

2012-01-01T23:59:59.000Z

95

Solar energy prediction using linear and non-linear regularization models: A study on AMS (American Meteorological Society) 201314 Solar Energy Prediction Contest  

Science Journals Connector (OSTI)

Abstract In 2013, American Meteorological Society Committees on AI (artificial intelligence) Applications organized a short-term solar energy prediction competition aiming at predicting total daily solar energy received at 98 solar farms based on the outputs of various weather patterns of a numerical weather prediction model. In this paper, a methodology to solve this problem has been explained and the performance of ordinary LSR (least-square regression), regularized LSR and ANN(artificial neural network) models has been compared. In order to improve the generalization capability of the models, more experiments like variable segmentation, subspace feature sampling and ensembling of models have been conducted. It is observed that model accuracy can be improved by proper selection of input data segments. Further improvements can be obtained by ensemble of forecasts of different models. It is observed that the performance of an ensemble of ANN and LSR models is the best among all the proposed models in this work. As far as the competition is concerned, Gradient Boosting Regression Tree has turned out to be the best algorithm. The proposed ensemble of ANN and LSR model is able to show a relative improvement of 7.63% and 39.99% as compared to benchmark Spline Interpolation and Gaussian Mixture Model respectively.

S.K. Aggarwal; L.M. Saini

2014-01-01T23:59:59.000Z

96

Meteorology: typical meteorological year data for selected stations in  

Open Energy Info (EERE)

Ethiopia from NREL Ethiopia from NREL Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years. Because they represent typical rather than extreme conditions, they are not suited for designing systems and their components to meet the worst-case conditions

97

Meteorology: typical meteorological year data for selected stations in  

Open Energy Info (EERE)

Brazil from NREL Brazil from NREL Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years. Because they represent typical rather than extreme conditions, they are not suited for designing systems and their components to meet the worst-case conditions occurring at a location.

98

Meteorology: typical meteorological year data for selected stations in  

Open Energy Info (EERE)

Nepal from NREL Nepal from NREL Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years. Because they represent typical rather than extreme conditions, they are not suited for designing systems and their components to meet the worst-case conditions occurring at a location.

99

Meteorology: typical meteorological data for selected stations in Ghana  

Open Energy Info (EERE)

data for selected stations in Ghana data for selected stations in Ghana from NREL Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations> (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years. Because they represent typical rather than extreme conditions, they are not suited for designing systems and their components to meet the worst-case conditions occurring at a location.

100

Meteorology: typical meteorological year data for selected stations in Sri  

Open Energy Info (EERE)

Sri Sri Lanka from NREL Dataset Summary Description (Abstract): A data set of hourly values of solar radiation and meteorological elements for a 1-year period. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years. Because they represent typical rather than extreme conditions, they are not suited for designing systems and their components to meet the worst-case conditions occurring at a location.

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Meteorology: typical meteorological year data for selected stations in  

Open Energy Info (EERE)

China from NREL China from NREL Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even

102

Meteorology: typical meteorological year data for selected stations in  

Open Energy Info (EERE)

Kenya from NREL Kenya from NREL Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not appropriate for simulations of wind energy conversion systems. A TMY provides a standard for hourly data for solar radiation and other meteorological elements that permit performance comparisons of system types and configurations for one or more locations. A TMY is not necessarily a good indicator of conditions over the next year, or even the next 5 years. Rather, it represents conditions judged to be typical over a long period of time, such as 30 years. Because they represent typical rather than extreme conditions, they are not suited for designing systems and their components to meet the worst-case conditions occurring at a location.

103

To a physicist about to teach meteorology  

Science Journals Connector (OSTI)

Physics teachers have the physical science background to teach an introductory course in meteorology. Weather phenomena follow the laws of classical physics: thermodynamics fluid mechanics and radiation physics.

James OConnell

1999-01-01T23:59:59.000Z

104

Optimal Bidding Strategies for Wind Power Producers with Meteorological Forecasts  

E-Print Network [OSTI]

Optimal Bidding Strategies for Wind Power Producers with Meteorological Forecasts Antonio that the inherent variability in wind power generation and the related difficulty in predicting future generation profiles, raise major challenges to wind power integration into the electricity grid. In this work we study

Giannitrapani, Antonello

105

METEOROLOGICAL APPLICATIONS Meteorol. Appl. 15: 5164 (2008)  

E-Print Network [OSTI]

metrics they often score quite poorly because of the difficulty of predicting an exact match 2007 1. Introduction Mesoscale numerical weather prediction (NWP) mod- els have the potential than at low resolution. Even when the forecast captures the large-scale weather well, the small

Ebert, Beth

106

Center for Mesoscale Transport Properties (m2M) | U.S. DOE Office...  

Office of Science (SC) Website

from molecular to mesoscale (m2m); to minimize heat and maximize work of electrical energy storage devices. Research Topics energy storage (including batteries and...

107

Meteorology: typical meteorological year data for selected stations in  

Open Energy Info (EERE)

Bangladesh from NREL Bangladesh from NREL Dataset Summary Description (Abstract): Each TMY is a data set of hourly values of solar radiation and meteorological elements for a 1-year period. Solar radiation is modeled using the NREL METSTAT model, with surface observed cloud cover being the principal model input. The container file contains one TMY file for each selected station in the region, plus documentation files and a TMY data reader file for use with Microsoft Excel. (Purpose): Simulations (Supplemental Information): A TMY consists of months selected from individual years and concatenated to form a complete year. The intended use is for computer simulations of solar energy conversion systems and building systems. Because of the selection criteria, these TMYs are not

108

Surface Meteorology, Barrow, Alaska, Area A, B, C and D, Ongoing from 2012  

SciTech Connect (OSTI)

Meteorological data are being collected at several points within four intensive study areas in Barrow. These data assist in the calculation of the energy balance at the land surface and are also useful as inputs into modeling activities.

Hinzman, Larry; Busey, Bob; Cable, William; Romanovsky, Vladimir

2014-12-04T23:59:59.000Z

109

Economic Valuation of a New Meteorological Information Service: Conjoint Analysis for a Pollen Forecast System  

Science Journals Connector (OSTI)

This study aims to investigate the publics preferences for and quantitatively measure the economic value of a pollen forecast system, a new meteorological information service, in South Korea. To directly measure the economic value of the pollen ...

Joong-Woo Lee; Jinyong Jang; Kwang-Kun Ko; Youngsang Cho

2014-10-01T23:59:59.000Z

110

METR 3223: Physical Meteorology II: Cloud Physics, Atmospheric Electricity and Optics  

E-Print Network [OSTI]

METR 3223: Physical Meteorology II: Cloud Physics, Atmospheric Electricity and Optics CLASS: Monday as atmospheric electricity and optics. Specific topics that will be covered are as follows: Cloud physics: Review Observation studies Atmospheric electricity: Electrostatics Electromagnetic wave Thunderstorm charging

Droegemeier, Kelvin K.

111

Surface Meteorology, Barrow, Alaska, Area A, B, C and D, Ongoing from 2012  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Meteorological data are being collected at several points within four intensive study areas in Barrow. These data assist in the calculation of the energy balance at the land surface and are also useful as inputs into modeling activities.

Hinzman, Larry; Busey, Bob; Cable, William; Romanovsky, Vladimir

112

Harnessing the Environmental Data Flood: A Comparative Analysis of Hydrologic, Oceanographic, and Meteorological Informatics Platforms  

Science Journals Connector (OSTI)

Researchers studying large-scale questions in hydrology, oceanography, and meteorology can work with existing data through a myriad of platforms that provide access to remote datasets and render said information in various graphical outputs for ...

Andrew K. Dow; Eli M. Dow; Thomas D. Fitzsimmons; Maurice M. Materise

113

Implied Dynamic Feedback of 3D IR Radiative Transfer on Simulated...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and macroscale cloud field structure relative to independent pixel approximation (IPA) RT. Methodology The Cooperative Institute for Mesoscale Meteorological Studies (CIMMS)...

114

World Meteorological Organization | Open Energy Information  

Open Energy Info (EERE)

World Meteorological Organization World Meteorological Organization Jump to: navigation, search Logo: World Meteorological Organization Name World Meteorological Organization Address 7bis, avenue de la Paix, Case postale 2300, CH-211 Place Geneva, Switzerland Coordinates 46.2038099°, 6.1399589° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":46.2038099,"lon":6.1399589,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

115

NASA Surface meteorology and Solar Energy: Methodology  

E-Print Network [OSTI]

1 NASA Surface meteorology and Solar Energy: Methodology Energy Technology (RET) projects. These climatological profiles are used for designing systems that have for implementing RETs, there are inherent problems in using them for resource assessment. Ground measurement

Firestone, Jeremy

116

Diffractive imaging at large Fresnel number: Challenge of dynamic mesoscale imaging with hard x rays  

Science Journals Connector (OSTI)

Real materials have structure at both the atomic or crystalline scale as well as at interfaces and defects at the larger scale of grains. There is a need for the study of materials at the mesoscale, the scale at which subgranular physical processes and intergranular organization couple to determine microstructure, crucially impacting constitutive response at the engineering macroscale. Diffractive imaging using photons that can penetrate multiple grains of material would be a transformative technique for the study of the performance of materials in dynamic extremes. Thicker samples imply higher energy photons of shorter wavelength, and imaging of multiple grains implies bigger spot sizes. Such imaging requires the use of future planned and proposed hard x-ray free electron lasers (such as the European XFEL) to provide both the spatial coherence transverse to the large spots and the peak brilliance to provide the short illumination times. The result is that the Fresnel number of the system becomes large and is no longer in the Fraunhofer far-field limit. The interrelated issues of diffractive imaging at large Fresnel number are analyzed, including proof that diffractive imaging is possible in this limit and estimates of the signal-to-noise possible. In addition, derivation of the heating rates for brilliant pulses of x rays are presented. The potential and limitations on multiple dynamic images are derived. This paper will present a study of x-ray interactions with materials in this new regime of spatially coherent but relatively large mesoscale spots at very hard energies. It should provide the theory and design background for the experiments and facilities required to control materials in extreme environments, in particular for the next generation of very-hard-x-ray free electron lasers.

John L. Barber; Cris W. Barnes; Richard L. Sandberg; Richard L. Sheffield

2014-05-12T23:59:59.000Z

117

GIS Applications in MeteorologyGIS Applications in Meteorology Adventures in a Parallel UniverseAdventures in a Parallel Universe  

E-Print Network [OSTI]

GIS Applications in MeteorologyGIS Applications in Meteorology (or)(or) Adventures in a Parallel Mason UniversityDept. Geography, George Mason University 24 June 200324 June 2003 GIS Meteorology, Shipley NCAR, 24 Jun 2003NCAR 24Jun03.ppt #12;NCAR 24Jun03.ppt GIS Meteorology, Shipley NCAR, 24 Jun 2003

118

Cloud shading retrieval and assimilation in a satellite-model coupled mesoscale analysis system  

SciTech Connect (OSTI)

A retrieval-assimilation method has been developed as a quantitative means to exploit the information in satellite imagery regarding shading of the ground by clouds, as applied to mesoscale weather analysis. Cloud radiative parameters are retrieved from satellite visible image data and used, along with parameters computed by a numerical model, to control the model's computation of downward radiative fluxes at the ground. These fluxes influence the analysis of ground surface temperatures under clouds. The method is part of a satellite-model coupled four-dimensional analysis system that merges information from visible image data in cloudy areas with infrared sounder data in clear areas, where retrievals of surface temperatures and water vapor concentrations are assimilated. The substantial impact of shading on boundary-layer development and mesoscale circulations was demonstrated in simulations, and the value of assimilating shading retrievals was demonstrated with a case study and with a simulated analysis that included the effects of several potential sources of error. The case study was performed in the northwestern Texas area, where convective cloud development was influenced by the shading effects of a persistent region of stratiform cloud cover. Analyses that included shading retrieval assimilation had consistently smaller shelter-height temperature errors than analyses without shading retrievals. When clear-area surface temperature retrievals from sounder data were analyzed along with cloudy-area shading retrievals, the contrast in heating between the shaded and clear parts of the domain led to large variations in analyzed boundary-layer depths and had a modest impact on analyzed wind flow. The analyzed locations of upward vertical motion corresponded roughly to areas of convective cloud development observed in satellite imagery. 29 refs., 17 figs., 2 tabs.

Lipton, A.E. (Phillips Lab., Hanscom AFB, MA (United States))

1993-11-01T23:59:59.000Z

119

Meteorological parameters as an important factor on the energy recovery of landfill gas in landfills  

Science Journals Connector (OSTI)

The effect of meteorological factors on the composition and the energy recovery of the landfill gas (LFG) were evaluated in this study. Landfill gas data consisting of methane carbon dioxide and oxygen content as well as LFG temperature were collected from April 2009 to March 2010 along with meteorological data. The data set were first used to visualize the similarity by using self-organizing maps and to calculate correlation factors. Then the data was used with ANN to further analyze the impacts of meteorological factors. In both analysis it is seen that the most important meteorological parameter effective on LFG energy content is soil temperatures. Furthermore ANN was found to be successful in explaining variations of methane content and temperature of LFG with correlation coefficients of 0.706 and 0.984 respectively. ANN was proved itself to be a useful tool for estimating energy recovery of the landfill gas.

?brahim Uyanik; Bestamin zkaya; Selami Demir; Mehmet akmakci

2012-01-01T23:59:59.000Z

120

Surface Meteorological Observation System (SMOS) Handbook  

SciTech Connect (OSTI)

The Surface Meteorological Observation System (SMOS) mostly uses conventional in situ sensors to obtain 1-minute, 30-minute, and 1440-minute (daily) averages of surface wind speed, wind direction, air temperature, relative humidity (RH), barometric pressure, and precipitation at the Central Facility and many of the extended facilities of the Southern Great Plains (SGP) climate research site. The SMOSs are not calibrated as systems. The sensors and the data logger (which includes the analog-to-digital converter, or A/D) are calibrated separately. All systems are installed using components that have a current calibration. SMOSs have not been installed at extended facilities located within about 10 km of existing surface meteorological stations, such as those of the Oklahoma Mesonet. The Surface Meteorological Observation Systems are used to create climatology for each particular location, and to verify the output of numerical weather forecast and other model output. They are also used to ground-truth other remote sensing equipment.

Ritsche, MT

2008-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Mesoscale Structure of Trade Wind Convection over Puerto Rico: Composite Observations and Numerical Simulation  

Science Journals Connector (OSTI)

We examine the mesoscale structure of the atmospheric boundary layer (ABL), low-level circulation, and trade wind convection over the sub-tropical island of Puerto Rico in mid-summer. Shallow afternoon thunder...

Mark R. Jury; Sen Chiao; Eric W. Harmsen

2009-08-01T23:59:59.000Z

122

Mesoscale Convective Systems in Relation to African and Tropical Easterly Jets  

Science Journals Connector (OSTI)

This paper documents the interaction processes between mesoscale convective systems (MCS), the tropical easterly jet (TEJ), and the African easterly jet (AEJ) over West Africa during the monsoon peak of 2006 observed during the African Monsoon ...

L. Besson; Y. Lematre

2014-09-01T23:59:59.000Z

123

Evolution of Mesoscale Precipitation Band Environments within the Comma Head of Northeast U.S. Cyclones  

Science Journals Connector (OSTI)

This paper explores the mesoscale forcing and stability evolution of intense precipitation bands in the comma head sector of extratropical cyclones using the 32-km North American Regional Reanalysis, hourly 20-km Rapid Update Cycle analyses, and ...

David R. Novak; Brian A. Colle; Anantha R. Aiyyer

2010-06-01T23:59:59.000Z

124

Seasonal Mesoscale and Submesoscale Eddy Variability along the North Pacific Subtropical Countercurrent  

Science Journals Connector (OSTI)

Located at the center of the western North Pacific Subtropical Gyre, the Subtropical Countercurrent (STCC) is not only abundant in mesoscale eddies, but also exhibits prominent submesoscale eddy features. Output from a high-resolution OGCM ...

Bo Qiu; Shuiming Chen; Patrice Klein; Hideharu Sasaki; Yoshikazu Sasai

2014-12-01T23:59:59.000Z

125

Impacts on ocean heat from transient mesoscale eddies in a hierarchy of climate models  

Science Journals Connector (OSTI)

We characterize impacts on heat in the ocean climate system from transient ocean mesoscale eddies. Our tool is a suite of centennial-scale 1990 radiatively forced numerical climate simulations from three GFDL coupled models comprising the CM2-O ...

Stephen M. Griffies; Michael Winton; Whit G. Anderson; Rusty Benson; Thomas L. Delworth; Carolina O. Dufour; John P. Dunne; Paul Goddard; Adele k. Morrison; Anthony Rosati; Andrew T. Wittenberg; Jianjun Yin; Rong Zhang

126

The effect of shear on heat budgets in a simulated Mesoscale Convective System  

E-Print Network [OSTI]

The evolution and structure of simulated Mesoscale Convective Systems (MCS) were examined using the Collaborative Model for Multiscale Atmospheric Simulations. Three numerical simulations were performed, with the amount of vertical wind shear...

Shaw, Justin David

2000-01-01T23:59:59.000Z

127

A Climatology of Midlatitude Mesoscale Convective Vortices in the Rapid Update Cycle  

Science Journals Connector (OSTI)

Climatological characteristics of mesoscale convective vortices (MCVs) occurring in the state of Oklahoma during the late spring and summer of four years are investigated. The MCV cases are selected based on vortex detection by an objective ...

Eric P. James; Richard H. Johnson

2010-05-01T23:59:59.000Z

128

Tests of an ensemble Kalman filter for mesoscale and regional-scale data assimilation  

E-Print Network [OSTI]

This dissertation examines the performance of an ensemble Kalman filter (EnKF) implemented in a mesoscale model in increasingly realistic contexts from under a perfect model assumption and in the presence of significant model error with synthetic...

Meng, Zhiyong

2007-09-17T23:59:59.000Z

129

The supercell thunderstorm on 8 June 1990: Mesoscale analysis and radar observations  

Science Journals Connector (OSTI)

Surface mesoscale analysis helps to explain these different storm evolutions due to interaction among local circulations, Adriatic Sea and orography. While dry wind (foehn) dumps the thermodynamic instability in ...

P. P. Alberoni; S. Nanni; M. Crespi; M. Monai

1996-01-01T23:59:59.000Z

130

Analysis of Strengthening and Dissipating Mesoscale Convective Systems Propagating off the West African Coast  

Science Journals Connector (OSTI)

A large number of Atlantic tropical depressions are generated in the eastern basin in relation to the African easterly wave (AEW) and embedded mesoscale convective systems (MCSs) coming from the African continent. In this paper, the structures of ...

Abdou L. Dieng; Laurence Eymard; Saidou M. Sall; Alban Lazar; Marion Leduc-Leballeur

2014-12-01T23:59:59.000Z

131

Processing of cloud condensation nuclei by collision-coalescence in a mesoscale model  

E-Print Network [OSTI]

The Naval Research Laboratory's Coupled Ocean-Atmosphere Mesoscale Prediction System (COAMPS) is employed to explore the relative importance of source, sink, and transport processes in producing an accurate forecast of the ...

Mechem, David B.; Robinson, Paul C.; Kogan, Yefim L.

2006-09-26T23:59:59.000Z

132

Meteorological Support at the Savanna River Site  

SciTech Connect (OSTI)

The Department of Energy (DOE) operates many nuclear facilities on large complexes across the United States in support of national defense. The operation of these many and varied facilities and processes require meteorological support for many purposes, including: for routine operations, to respond to severe weather events, such as lightning, tornadoes and hurricanes, to support the emergency response functions in the event of a release of materials to the environment, for engineering baseline and safety documentation, as well as hazards assessments etc. This paper describes a program of meteorological support to the Savannah River Site, a DOE complex located in South Carolina.

Addis, Robert P.

2005-10-14T23:59:59.000Z

133

METEOROLOGICAL Journal of Atmospheric and Oceanic Technology  

E-Print Network [OSTI]

that there is no10 isotopic fractionation between the liquid phase and the generated moist "air". The water11., A microdrop generator for the calibration of.... 1. Introduction1 2 Water vapor is a key element in the globalAMERICAN METEOROLOGICAL SOCIETY Journal of Atmospheric and Oceanic Technology EARLY ONLINE RELEASE

Paris-Sud XI, Université de

134

E-Print Network 3.0 - air medical meteorology Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

institutes Disciplines Systemanalysis science Medical science Statistics Meteorology... - Air pollution - CO2 costs - Climate + meteorology Base-line definition: Geographical...

135

An analytical coarse-graining method which preserves the free energy, structural correlations, and thermodynamic state of polymer melts from the atomistic to the mesoscale  

SciTech Connect (OSTI)

Structural and thermodynamic consistency of coarse-graining models across multiple length scales is essential for the predictive role of multi-scale modeling and molecular dynamic simulations that use mesoscale descriptions. Our approach is a coarse-grained model based on integral equation theory, which can represent polymer chains at variable levels of chemical details. The model is analytical and depends on molecular and thermodynamic parameters of the system under study, as well as on the direct correlation function in the k ? 0 limit, c{sub 0}. A numerical solution to the PRISM integral equations is used to determine c{sub 0}, by adjusting the value of the effective hard sphere diameter, d{sub HS}, to agree with the predicted equation of state. This single quantity parameterizes the coarse-grained potential, which is used to perform mesoscale simulations that are directly compared with atomistic-level simulations of the same system. We test our coarse-graining formalism by comparing structural correlations, isothermal compressibility, equation of state, Helmholtz and Gibbs free energies, and potential energy and entropy using both united atom and coarse-grained descriptions. We find quantitative agreement between the analytical formalism for the thermodynamic properties, and the results of Molecular Dynamics simulations, independent of the chosen level of representation. In the mesoscale description, the potential energy of the soft-particle interaction becomes a free energy in the coarse-grained coordinates which preserves the excess free energy from an ideal gas across all levels of description. The structural consistency between the united-atom and mesoscale descriptions means the relative entropy between descriptions has been minimized without any variational optimization parameters. The approach is general and applicable to any polymeric system in different thermodynamic conditions.

McCarty, J.; Clark, A. J.; Copperman, J.; Guenza, M. G., E-mail: mguenza@uoregon.edu [Department of Chemistry and Biochemistry, and Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403 (United States)

2014-05-28T23:59:59.000Z

136

Sandia National Laboratories: meteorological instrumentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Doppler Velocimeter EC Top Publications A Comparison of Platform Options for Deep-water Floating Offshore Vertical Axis Wind Turbines: An Initial Study Nonlinear Time-Domain...

137

The influence of mesoscale eddies on shallow water acoustic propagation  

Science Journals Connector (OSTI)

Acoustic propagation measurements in 150 m depth on the Florida escarpment observe the effects of the passage of a cyclonic eddy. As the stream core of the Florida Current meanders the eddy is formed and propagates along the shelf edge. The sequence over a roughly a fortnight is as follows: ahead of the eddy warm surface water and cold bottom water are swept onto the terrace forming a steep thermocline and corresponding strong downward refracting C(z). The gradient produce intense focused RBR arrivals and the thermocline becomes a duct for internal waves to propagate shoreward. At first the internal wave energy is minimal and propagation is stable and coherent. As the internal tides attempt to propagate on shelf the sound speed field and the acoustic signals become increasingly variable. The variability reaches a crescendo as the 200 m long internal tide is blocked from propagating on to the narrower shelf and begins to break and overturn producing small?scale variability. As the eddy passes nearly iso?thermal conditions are restored along with quiescent internal wave fields and reduced signal variability. Here the effects are quantized with data from fixed?system acoustic and oceanographic measurements demonstrating that the mesoscale determines acoustic propagation conditions days in advance.

2003-01-01T23:59:59.000Z

138

Interpreting Temperature Strain Data from Meso-Scale Clathrate Experiments  

SciTech Connect (OSTI)

Gas hydrates are important in global climate change, carbon sequestra- tion, and seafloor stability. Currently, formation and dissociation pathways are poorly defined. We present a new approach for processing large amounts of data from meso-scale experiments, such as the LUNA distributed sensing system (DSS) in the seafloor process simulator (SPS) at Oak Ridge National Laboratory. The DSS provides a proxy for temperature measurement with a high spatial resolution allowing the heat of reaction during gas hydrate formation/dissociation to aid in locating clathrates in the vessel. The DSS fibers are placed in the sediment following an Archimedean spiral design and then the position of each sensor is solved by iterating over the arc length formula with Newtons method. The data is then gridded with 1 a natural neighbor interpolation algorithm to allow contouring of the data. The solution of the sensor locations is verified with hot and cold stimulus in known locations. An experiment was preformed with a vertically split column of sand and silt. The DSS system clearly showed hydrate forming in the sand first, then slowly creeping into the silt. Similar systems and data processing techniques could be used for monitoring of hydrates in natural environments or in any situation where a hybrid temperature/strain index is useful. Further ad- vances in fiber technology allow the fiber to be applied in any configuration and the position of each sensor to be precisely determined making practical applications easier.

Leeman, John R [ORNL; Rawn, Claudia J [ORNL; Ulrich, Shannon M [ORNL; Elwood Madden, Megan [University of Oklahoma, Norman; Phelps, Tommy Joe [ORNL

2012-01-01T23:59:59.000Z

139

MICRO-SEISMOMETERS VIA ADVANCED MESO-SCALE FABRICATION  

SciTech Connect (OSTI)

The Department of Energy (DOE) and the National Nuclear Security Administration (NNSA) seek revolutionary sensing innovations for the monitoring of nuclear detonations. Performance specifications are to be consistent with those obtainable by only an elite few products available today, but with orders of magnitude reduction in size, weight, power, and cost. The proposed commercial innovation calls upon several technologies including the combination of meso-scale fabrication and assembly, photonics-based displacement / motion detection methods, and the use of digital control electronics . Early Phase II development has demonstrated verified and repeatable sub 2ng noise floor from 3Hz to 100Hz, compact integration of 3-axis prototypes, and robust deployment exercises. Ongoing developments are focusing on low frequency challenges, low power consumption, ultra-miniature size, and low cross axis sensitivity. We are also addressing the rigorous set of specifications required for repeatable and reliable long-term explosion monitoring, including thermal stability, reduced recovery time from mass re-centering and large mechanical shocks, sensitivity stability, and transportability. Successful implementation will result in small, hand-held demonstration units with the ability to address national security needs of the DOE/NNSA. Additional applications envisioned include military/defense, scientific instrumentation, oil and gas exploration, inertial navigation, and civil infrastructure monitoring.

Garcia, Caesar A; Onaran, Guclu; Avenson, Brad; Hall, Neal

2014-11-07T23:59:59.000Z

140

NASA-Surface Meteorology and Solar Energy | Open Energy Information  

Open Energy Info (EERE)

NASA-Surface Meteorology and Solar Energy NASA-Surface Meteorology and Solar Energy Jump to: navigation, search Tool Summary Name: NASA-Surface Meteorology and Solar Energy Agency/Company /Organization: National Aeronautics and Space Administration Sector: Energy, Land Focus Area: Renewable Energy, Solar Topics: Resource assessment Resource Type: Dataset, Maps Website: eosweb.larc.nasa.gov/sse/ NASA-Surface Meteorology and Solar Energy Screenshot References: Surface Meteorology and Solar Energy[1] Main Points Over 200 satellite-derived meteorology and solar energy parameters Monthly averaged from 22 years of data Data tables for a particular location Color plots on both global and regional scales Global solar energy data for 1195 ground sites References ↑ "Surface Meteorology and Solar Energy"

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Numerical Simulation of the Meso-? Scale Structure and Evolution of the 1977 Johnstown Flood. Part II: Inertially Stable Warm-Core Vortex and the Mesoscale Convective Complex  

Science Journals Connector (OSTI)

A mesoscale warm-core vortex associated with the mesoscale convective complex (MCC) that produced the 1977 Johnstown flood is examined using a three-dimensional nested-grid model simulation of the flood episode. In the simulation, the vortex ...

Da-Lin Zhang; J. Michael Fritsch

1987-09-01T23:59:59.000Z

142

Mesoscale Convective Vortices in Multiscale, Idealized Simulations: Dependence on Background State, Interdependency with Moist Baroclinic Cyclones, and Comparison with BAMEX Observations  

Science Journals Connector (OSTI)

A set of multiscale, nested, idealized numerical simulations of mesoscale convective systems (MCSs) and mesoscale convective vortices (MCVs) was conducted. The purpose of these simulations was to investigate the dependence of MCV development and ...

Robert J. Conzemius; Michael T. Montgomery

2010-04-01T23:59:59.000Z

143

Cloud structures from defense meteorological satellite data  

E-Print Network [OSTI]

1979 Major Subject: Meteorology CLOUD STRUCTURES FRON DEFENSE &IETEOROLOGICAL SAT"LLIT DATA A Thesis by JOHN FREDERICK PHILLIPS Approved as to style and content by. (Cha an of Committee) (Head of Department (Me er) (Hencber) August 1975...-gray-level density wedge, provided by the Air Weather Service, enabled determinations of ap- proximate cloud heights A comparison was made between the DMSP imagery and the concurrent digital radar from the National Severe Storms Laboratory at Norman...

Phillips, John Frederick

2012-06-07T23:59:59.000Z

144

Effects of valley meteorology on forest pesticide spraying  

SciTech Connect (OSTI)

Pacific Northwest Laboratory conducted this study for the Missoula Technology and Development Center of the US Department of Agriculture's Forest Service. The purpose of the study was to summarize recent research on valley meteorology during the morning transition period and to qualitatively evaluate the effects of the evolution of valley temperature inversions and wind systems on the aerial spraying of pesticides in National Forest areas of the western United States. Aerial spraying of pesticides and herbicides in forests of the western United States is usually accomplished in the morning hour after first light, during the period known to meteorologists as the morning transition period.'' This document describes the key physical processes that occur during the morning transition period on undisturbed days and the qualitative effects of these processes on the conduct of aerial spraying operations. Since the timing of valley meteorological events may be strongly influenced by conditions that are external to the valley, such as strong upper-level winds or the influence of clouds on the receipt of solar energy in the valley, some remarks are made on the qualitative influence of these processes. Section 4 of this report suggests ways to quantify some of the physical processes to provide useful guidance for the planning and conduct of spraying operations. 12 refs., 9 figs.

Whiteman, C.D.

1990-04-01T23:59:59.000Z

145

Mesoscale Atmospheric Dispersion, 2001, Ed. Z. Boybeyi, WIT Publications, Southampton, UK, Advances in Air Pollution, Vol 9, p. 424.  

E-Print Network [OSTI]

surface­atmosphere exchanges in mesoscale air pollution systems Devdutta S. Niyogi & Sethu Raman NorthMesoscale Atmospheric Dispersion, 2001, Ed. Z. Boybeyi, WIT Publications, Southampton, UK, Advances in Air Pollution, Vol 9, p. 424. Chapter 9 Numerical modeling of gas deposition and bi- directional

Raman, Sethu

146

Mesoscale Tank Experiments for Investigating Carbon Tetrachloride Biodegradation  

SciTech Connect (OSTI)

Mesoscale tank experiments were performed to simulate bioremediation of saturated zone carbon tetrachloride (CCl4) originating from a vadose zone carbon tetrachloride source. The mesoscale tank is 2-m wide by 2-m high by 3-m long and was constructed of stainless steel, yielding a total volume of 12 m3. Simulated geology within the tank consisted of two unconsolidated sand layers separated by a clay layer containing variable-sized stainless steel tubes that represented fractures within a consolidated porous medium. The thickness of the upper sand layer was approximately 55 cm, the thickness of the virtual fracture layer was 25 cm, and the thickness of the lower sand layer was approximately 98 cm. The water table was located at an elevation of approximately 54 cm from the bottom of the tank. CCl4 was added to the sealed tank by pouring 500 ml of neat CCl4 into a beaker buried approximately 10 cm below the upper sand surface through a stainless steel tube. The CCl4 was then allowed to partition through the reactor over time, eventually coming to equilibrium. Once CCl4 equilibrium had occurred in the saturated zone (~500 ppb); the reactor was bioaugmented with a CCl4 degrading culture enriched from the Subsurface Disposal Area at the INEEL. The culture was grown to a cell density of ~ 1.0 x 108 cells/ml and injected into the simulated aquifer through a center sampling port. Following injection of the culture, an initial aliquot of lactate (1,000 g/L), nitrogen, and phosphorus were added to the reactor. Lactate was injected every 3 5 days for one month. After 1 month of operation, a continuous supply of lactate (1,000 g/L) was pumped into the reactor at an average rate of 50 mL/min. CCl4 concentrations in the unsaturated zone were measured using hollow fiber membrane samplers, while liquid samples were analyzed to monitor levels in the simulated aquifer zone. Samples were also taken for analysis of volatile organic acids and cell density. As would be expected, increases in cell density over the length of the cell correlated with the flow of the water through the cell. One week following injection microbes and lactate, cell numbers were in the range of 5.0 x 106 cells/mL, by the end of the experiment cell numbers had increased to approximately 1.94 x 107 cells/mL. Five days after lactate injection was initiated, chloroform appeared in liquid samples taken for chlorinated VOC analysis. CCl4 concentrations in the liquid phase dropped to approximately 180 ppb. At the conclusion of the batch lactate injection phase of the bioaugmentation, CCl4 levels averaged 40 ppb and chloroform levels averaged 44 ppb. Interestingly, once continuous lactate addition was initiated, CCl4 concentrations in the saturated zone increased with spikes as high as 3,000 ppb. Chloroform concentrations also increased following continuous addition of lactate. Since the CCl4 source in the breaker had been depleted, vadose zone concentrations of CCl4 dropped steadily during addition of lactate to the saturated zone. CCl4 levels of ~ 800 ppmv were noted at the beginning of the experiment, levels decreased to below 200 ppmv by the end of the bioaugmentation phase. No chloroform was noted in the vadose zone during testing.

Brady D. Lee; Robert J. Lenhard

2005-06-01T23:59:59.000Z

147

Impact of mesoscale eddies on water transport between the Pacific Ocean and the Bering Sea  

E-Print Network [OSTI]

Sea surface height anomalies observed by satellites in 1993--2012 are combined with simulation and observations by surface drifters and Argo floats to study water flow pattern in the Near Strait (NS) connected the Pacific Ocean with the Bering Sea. Daily Lagrangian latitudinal maps, computed with the AVISO surface velocity field, and calculation of the transport across the strait show that the flow through the NS is highly variable and controlled by mesoscale and submesoscale eddies in the area. On the seasonal scale, the flux through the western part of the NR is negatively correlated with the flux through its eastern part ($r=-0.93$). On the interannual time scale, a significant positive correlation ($r=0.72$) is diagnosed between the NS transport and the wind stress in winter. Increased southward component of the wind stress decreases the northward water transport through the strait. Positive wind stress curl over the strait area in winter--spring generates the cyclonic circulation and thereby enhances the...

Prants, S V; Budyansky, M V; Uleysky, M Yu

2013-01-01T23:59:59.000Z

148

Meteorological teleconnections between the Sahel and the eastern United States  

E-Print Network [OSTI]

METEOROLOGICAL TELECONNECTIONS BETWEEN THE SAHEL AND THE EASTERN UNITED STATES A Thesis by JEFFREY EARL MALAN Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1985 Major Subject: Meteorology METEOROLOGICAL TELECONNECTIONS BETWEEN THE SAHEL AND THE EASTERN UNITED STATES A Thesis by JEFFREY EARL MALAN Approved as to style and content by: J hn F. Grif s (Cha rman of Committee) Rudo f J...

Malan, Jeffrey Earl

2012-06-07T23:59:59.000Z

149

Meso-Scale Planning for Multi-Agent Navigation Liang He Jur van den Berg  

E-Print Network [OSTI]

Meso-Scale Planning for Multi-Agent Navigation Liang He Jur van den Berg Abstract-- We introduce are with the of School of Computing, University of Utah. E-mail: lianghe.hust@gmail.com, berg@cs.utah.edu. Fig. 1

van den Berg, Jur

150

Larval fish assemblages and mesoscale oceanographic structure along the Mesoamerican Barrier Reef System  

E-Print Network [OSTI]

Larval fish assemblages and mesoscale oceanographic structure along the Mesoamerican Barrier Reef Caribbean region, and contains spawning sites for a number of reef fish species. Despite this, little is known of the distribution and transport of pelagic fish larvae in the area, and basic in situ

151

Spatial-temporal mesoscale modelling of rainfall intensity using gage and radar data  

E-Print Network [OSTI]

Spatial-temporal mesoscale modelling of rainfall intensity using gage and radar data Montserrat fields. Doppler radar data offer better spatial and temporal coverage, but Doppler radar measures values. We use spatial logistic regression to model the probability of rain for both sources of data

Reich, Brian J.

152

Temporal Changes in Wind as Objects for Evaluating Mesoscale Numerical Weather Prediction  

E-Print Network [OSTI]

a method of evaluating numerical weather prediction models by comparing the characteristics of temporal for biases in features forecast by the model. 1. Introduction Verification of numerical weather predictionTemporal Changes in Wind as Objects for Evaluating Mesoscale Numerical Weather Prediction DARAN L

Knievel, Jason Clark

153

The Tilt of the Leading Edge of Mesoscale Tropical Convective Lines  

Science Journals Connector (OSTI)

The tilt with height of the leading edge of seven mesoscale convective lines in GATE is determined by two independent methods. When averaged over time and along the line axis, the tilt is found to he surprisingly shallow, between 20 and 35 ...

M. A. LeMone; G. M. Barnes; E. J. Szoke; E. J. Zipser

1984-03-01T23:59:59.000Z

154

Modeling the Atmospheric Boundary Layer Wind Response to Mesoscale Sea Surface Temperature  

E-Print Network [OSTI]

(WRF) and COAMPS atmospheric models. The SST-induced wind response is assessed from eight simulations of the surface wind relative to the SST gradient. #12;3 1. Introduction Positive correlations of local surfaceModeling the Atmospheric Boundary Layer Wind Response to Mesoscale Sea Surface Temperature Natalie

Kurapov, Alexander

155

Propagation of Wind Energy into the Deep Ocean through a Fully Turbulent Mesoscale Eddy Field  

Science Journals Connector (OSTI)

The authors analyze the 3D propagation of wind-forced near-inertial motions in a fully turbulent mesoscale eddy field with a primitive equation numerical model. Although the wind stress is uniform, the near-inertial motion field quickly becomes ...

Eric Danioux; Patrice Klein; Pascal Rivire

2008-10-01T23:59:59.000Z

156

Coupling a Mesoscale Numerical Weather Prediction Model with Large-Eddy Simulation for Realistic Wind Plant Aerodynamics Simulations (Poster)  

SciTech Connect (OSTI)

Wind plant aerodynamics are influenced by a combination of microscale and mesoscale phenomena. Incorporating mesoscale atmospheric forcing (e.g., diurnal cycles and frontal passages) into wind plant simulations can lead to a more accurate representation of microscale flows, aerodynamics, and wind turbine/plant performance. Our goal is to couple a numerical weather prediction model that can represent mesoscale flow [specifically the Weather Research and Forecasting model] with a microscale LES model (OpenFOAM) that can predict microscale turbulence and wake losses.

Draxl, C.; Churchfield, M.; Mirocha, J.; Lee, S.; Lundquist, J.; Michalakes, J.; Moriarty, P.; Purkayastha, A.; Sprague, M.; Vanderwende, B.

2014-06-01T23:59:59.000Z

157

METEOROLOGY OF SO CLOUD REGIMES WORKSHOP ON SOUTHERN OCEAN CLOUDS & AND  

E-Print Network [OSTI]

regimes Regime meteorology Vertical pressure velocity Potential temperature Relative humidity Wind speed regimes Regime meteorology Vertical pressure velocity Potential temperature Relative humidity Wind speed Regime meteorology Vertical pressure velocity Potential temperature Relative humidity Wind speed

Jakob, Christian

158

New Surface Meteorological Measurements at SGP,  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

NM, March 22 - 26, 2004 NM, March 22 - 26, 2004 1 New Surface Meteorological Measurements at SGP, and Their Use for Assessing Radiosonde Measurement Accuracy L.M. Miloshevich National Center for Atmospheric Research Boulder, Colorado B.M. Lesht and M. Ritche Argonne National Laboratory Argonne, Illinois Introduction Several recent ARM investigations have been directed toward characterizing and improving the accuracy of ARM radiosonde water vapor measurements. Tobin et al. (2002) showed that calculating the downwelling and outgoing longwave fluxes with a target accuracy of 1 W m -2 requires knowing the total-column precipitable water vapor (PW) with 2% absolute accuracy and knowing the upper troposphere (UT) water vapor with 10% absolute accuracy. Turner et al. (2003) used an empirical

159

E-Print Network 3.0 - applied meteorology unit Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Series: Report (United States. Weather Bureau. Meteorological... : Report (United States. Weather Bureau. Meteorological Satellite Laboratory); no. 9. QC879.5 .U45 no.9... ....

160

The evolution of total lightning and radar reflectivity characteristics of two mesoscale convective systems over Houston, Texas  

E-Print Network [OSTI]

Two mesoscale convective systems (MCSs) passed over the Houston Lightning Detection and Ranging (LDAR) network on 31 October 2005 and 21 April 2006. As the MCSs traverse the LDAR network, the systems slowly mature with a weakening convective line...

Hodapp, Charles Lee

2009-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Resolved Turbulence Characteristics in Large-Eddy Simulations Nested within Mesoscale Simulations Using the Weather Research and Forecasting Model  

Science Journals Connector (OSTI)

One-way concurrent nesting within the Weather Research and Forecasting Model (WRF) is examined for conducting large-eddy simulations (LES) nested within mesoscale simulations. Wind speed, spectra, and resolved turbulent stresses and turbulence ...

Jeff Mirocha; Branko Kosovi?; Gokhan Kirkil

2014-02-01T23:59:59.000Z

162

Momentum transport processes in the stratiform regions of mesoscale convective systems over the western Pacific warm pool  

E-Print Network [OSTI]

Momentum transport by the stratiform components of mesoscale convective systems (MCSs) during the Tropical OceanGlobal Atmosphere Coupled OceanAtmosphere Response Experiment in December 1992 is investigated using a ...

Mechem, David B.; Chen, Shuyi S.; Houze, Robert A. Jr.

2006-04-01T23:59:59.000Z

163

A Statistical Analysis of Characteristics of Mesoscale Convective System Mountain Initiation Location Clusters in the Arkansas-Red River Basin  

E-Print Network [OSTI]

A Statistical Analysis of Characteristics of Mesoscale Convective System Mountain Initiation Location Clusters in the Arkansas-Red River Basin By Elisabeth F. Callen Submitted to the graduate degree program in Geography and the Graduate... ____________________________________ David Mechem Date Defended: November 9, 2012 ii The Thesis Committee for Elisabeth F. Callen certifies that this is the approved version of the following thesis: A Statistical Analysis of Characteristics of Mesoscale Convective...

Callen, Elisabeth F.

2012-12-31T23:59:59.000Z

164

Effects of urban land cover modifications in a mesoscale meteorological model on surface temperature and heat fluxes in the Phoenix metropolitan area.  

E-Print Network [OSTI]

and latent heat fluxes and therefore the ground temperature, Tg. Evaporation, E, for each grid cell temperature and heat fluxes in the Phoenix metropolitan area. S. Grossman-Clarke1, J.A. Zehnder2, and W) satellite images [2]. The data were upscaled to a 30-second grid and used to augment and correct

Hall, Sharon J.

165

The Influence of Meteorology on the Air Quality in the San Luis Obispo County-Southwestern San Joaquin Valley Region for 3?6 August 1990  

Science Journals Connector (OSTI)

The large volume of data measured during the 1990 summer San Joaquin Valley Air Quality Study/Atmospheric Utility Signatures, Predictions, and Experiments (SJVAQS/AUSPEX) provides a unique opportunity to examine the influence of meteorology on ...

Elizabeth M. Niccum; Donald E. Lehrman; William R. Knuth

1995-08-01T23:59:59.000Z

166

Meteorology program status from Rocky Flats Environmental Technology Site  

SciTech Connect (OSTI)

The meteorology program at Rocky Flats Environmental Technology Site (Site) has experienced significant changes the past 18 months. The purposes of the meteorology program at the Site are to (1) support Emergency Preparedness programs for assessing the transport, dispersion, and deposition of effluents actually or potentially released into the atmosphere by Site operations; and (2) provide information for onsite and offsite projects concerned with the design of environmental monitoring networks for impact assessments, environmental surveillance operations, health and safety related activities, and remediation operations. The meteorology program includes ambient monitoring, weather forecasting, climatological analyses, air dispersion modeling, and Emergency Preparedness organizational support.

Maxwell, D.R.

1996-02-01T23:59:59.000Z

167

Mesoscale Influences on Nocturnal Valley Drainage Winds in Western Colorado Valleys  

Science Journals Connector (OSTI)

The mesoalpha-scale upper-level sounding network data collected during the 1984 ASCOT meteorological and tracer experiments provided a unique opportunity to analyze the nocturnal drainage wind in four different valleys in western Colorado, and to ...

Montie M. Orgill; John D. Kincheloe; Robert A. Sutherland

1992-02-01T23:59:59.000Z

168

286 BUREAU OF METEOROLOGY ANNUAL REPORT 201213 Glossary of acronyms  

E-Print Network [OSTI]

of Meteorology Training Centre C CABLE Community Atmosphere Biosphere Land Exchange (model) CASA Civil Aviation Coupled Model Intercomparison Project CO2 Carbon dioxide COAG Council of Australian Governments COMET

Greenslade, Diana

169

2797Bulletin of the American Meteorological Society 1. Introduction  

E-Print Network [OSTI]

and associated length scales, boundary layer formulation, runoff generation, and groundwa- Modeling Root Water2797Bulletin of the American Meteorological Society 1. Introduction Within atmospheric modeling properties may directly affect the atmospheric boundary layer. Deforestation experi- ments showed

Jackson, Robert B.

170

Applications of Climatology and Meteorology to Hydrologic Simulation  

E-Print Network [OSTI]

TR-38 1971 Applications of Climatology and Meteorology to Hydrologic Simulation R.A. Clark G.E. O?Connor Texas Water Resources Institute Texas A&M University ...

Clark, R. A.; O'Connor, G. E.

171

Minicomputer Capabilities Related to Meteorological Aspects of Emergency Response  

SciTech Connect (OSTI)

The purpose of this report is to provide the NRC staff involved in reviewing licensee emergency response plans with background information on the capabilities of minicomputer systems that are related to the collection and dissemination of meteorological infonmation. The treatment of meteorological information by organizations with existing emergency response capabilities is described, and the capabilities, reliability and availability of minicomputers and minicomputer systems are discussed.

Rarnsdell, J. V.; Athey, G. F.; Ballinger, M. Y.

1982-02-01T23:59:59.000Z

172

Effects of air pollution on meteorological parameters during Deepawali festival over an Indian urban metropolis  

Science Journals Connector (OSTI)

Abstract Atmospheric pollutants (NO2, SO2, PM10, BC, CO, surface O3), emitted during fireworks display, have significant effects on meteorological parameters like air temperature, relative humidity, lapse rate and visibility in air over Kolkata (2265? N, 8845? E), a metropolitan city near the landocean boundary, on the eve of Deepawali festival when extensive fireworks are burnt. Long-term trend (20052013), indicates that the yearly average concentrations of both primary and secondary air pollutants have increased, exceeding the National Ambient Air Quality Standard (NAAQS) limit, on the respective Deepawali days. Short-term study (20122013) during the festival shows that the average pollutant concentrations have increased too compared to normal days. This study also reveals the immediate effects of the increased air pollutants on the boundary layer meteorology. PM10 has been found to be the most dominant atmospheric pollutants during this period. As a result of an increase in atmospheric heat content with elevated surface air temperature, a significant increase in the environmental lapse rate bears a signature of the influence of pollutants on the boundary layer temperature profile. A change in the diurnal pattern of relative humidity as well as in the vertical temperature profile is due to the change of the lapse rate during the festival days. Thus, the atmospheric pollutants during this festival over the urban region have significant effect on the boundary layer meteorology with bearings on environmental hazards.

Upal Saha; Shamitaksha Talukdar; Soumyajyoti Jana; Animesh Maitra

2014-01-01T23:59:59.000Z

173

Analysis of Mesoscale Model Data for Wind Integration (Poster)  

SciTech Connect (OSTI)

Supports examination of implications of national 20% wind vision, and provides input to integration and transmission studies for operational impact of large penetrations of wind on the grid.

Schwartz, M.; Elliott, D.; Lew, D.; Corbus, D.; Scott, G.; Haymes, S.; Wan, Y. H.

2009-05-01T23:59:59.000Z

174

Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes  

E-Print Network [OSTI]

Long-period fading in atmospherics during severe meteorological activity and associated solar activity with the solar geophysical phenomena was studied. The results are indicative of an interesting sequence of solar- terrestrial events. A tentative conclusion is reached, suggesting an origin

Boyer, Edmond

175

An application of a meteorological data assimilation system to an air quality simulation  

SciTech Connect (OSTI)

The need to calculate air pollutant exposure metrics for longer time periods, i.e., seasonal and annual, has generated a need to conduct long-term simulations using regional-scale Eulerian air quality models. Hourly-resolved meteorological and micro-meteorological fields for an entire year are required as input to the air quality models. In this paper, the authors describe the application of a meteorological data assimilation system to provide high-quality fields to drive a regional air quality model. The process of assimilation blends multiple data sources (large-scale gridded data, surface and upper air observations, satellite imagery, and radar data) into a unified atmospheric representation. The authors have used an assimilation system developed at the Center for the Analysis and Prediction of Storms at the University of Oklahoma. The modeling domain covers most of North America and 1995 was chosen as the simulation year. The data used in the assimilation include the NCAR/NCEP global reanalysis fields combined with North American surface and radiosonde data. The authors will describe modifications made to the assimilation system to enable estimation of a number of air-quality related quantities not normally calculated, such as Monin-Obhukov length and friction velocity. While the system supports a state-of-the-art three-dimensional cloud and hydrometeor field analysis based on background fields, surface observations, satellite, and radar; a simpler approach was developed in this study to estimate cloud fractional coverage based on the gridded relative humidity values.

Moon, D.; Pai, P.

1999-07-01T23:59:59.000Z

176

Nesting large-eddy simulations within mesoscale simulations for wind energy applications  

SciTech Connect (OSTI)

With increasing demand for more accurate atmospheric simulations for wind turbine micrositing, for operational wind power forecasting, and for more reliable turbine design, simulations of atmospheric flow with resolution of tens of meters or higher are required. These time-dependent large-eddy simulations (LES), which resolve individual atmospheric eddies on length scales smaller than turbine blades and account for complex terrain, are possible with a range of commercial and open-source software, including the Weather Research and Forecasting (WRF) model. In addition to 'local' sources of turbulence within an LES domain, changing weather conditions outside the domain can also affect flow, suggesting that a mesoscale model provide boundary conditions to the large-eddy simulations. Nesting a large-eddy simulation within a mesoscale model requires nuanced representations of turbulence. Our group has improved the Weather and Research Forecasting model's (WRF) LES capability by implementing the Nonlinear Backscatter and Anisotropy (NBA) subfilter stress model following Kosovic (1997) and an explicit filtering and reconstruction technique to compute the Resolvable Subfilter-Scale (RSFS) stresses (following Chow et al, 2005). We have also implemented an immersed boundary method (IBM) in WRF to accommodate complex terrain. These new models improve WRF's LES capabilities over complex terrain and in stable atmospheric conditions. We demonstrate approaches to nesting LES within a mesoscale simulation for farms of wind turbines in hilly regions. Results are sensitive to the nesting method, indicating that care must be taken to provide appropriate boundary conditions, and to allow adequate spin-up of turbulence in the LES domain.

Lundquist, J K; Mirocha, J D; Chow, F K; Kosovic, B; Lundquist, K A

2008-09-08T23:59:59.000Z

177

Analysis of nuclear test TRINITY radiological and meteorological data  

SciTech Connect (OSTI)

This report describes the Weather Service Nuclear Support Office (WSNSO) analyses of the radiological and meteorological data collected for the TRINITY nuclear test. Inconsistencies in the radiological data and their resolution are discussed. The methods of normalizing the radiological data to a standard time and estimating fallout-arrival times are presented. The meteorological situations on event day and the following day are described. Comparisons of the WSNSO fallout analyses with analyses performed in the 1940s are presented. The radiological data used to derive the WSNSO 1987 fallout patterns are tabulated in appendices.

Quinn, V.E.

1987-09-01T23:59:59.000Z

178

Annual report 2008 | 1Ministry of Transport, Public Works and Water Management | Royal Netherlands Meteorological Institute Royal Netherlands  

E-Print Network [OSTI]

Annual report 2008 | 1Ministry of Transport, Public Works and Water Management | Royal Netherlands Meteorological Institute Royal Netherlands Meteorological Institute Ministry of Transport, Public Works and Water Management | Royal Netherlands Meteorological Institute Foreword ]| Annual report ]| Water ]| Interview

Stoffelen, Ad

179

Impact of Resolution on Simulation of Closed Mesoscale Cellular Convection Identified by Dynamically Guided Watershed Segmentation  

SciTech Connect (OSTI)

Organized mesoscale cellular convection (MCC) is a common feature of marine stratocumulus that forms in response to a balance between mesoscale dynamics and smaller scale processes such as cloud radiative cooling and microphysics. We use the Weather Research and Forecasting model with chemistry (WRF-Chem) and fully coupled cloud-aerosol interactions to simulate marine low clouds during the VOCALS-REx campaign over the southeast Pacific. A suite of experiments with 3- and 9-km grid spacing indicates resolution-dependent behavior. The simulations with finer grid spacing have smaller liquid water paths and cloud fractions, while cloud tops are higher. The observed diurnal cycle is reasonably well simulated. To isolate organized MCC characteristics we develop a new automated method, which uses a variation of the watershed segmentation technique that combines the detection of cloud boundaries with a test for coincident vertical velocity characteristics. This ensures that the detected cloud fields are dynamically consistent for closed MCC, the most common MCC type over the VOCALS-REx region. We demonstrate that the 3-km simulation is able to reproduce the scaling between horizontal cell size and boundary layer height seen in satellite observations. However, the 9-km simulation is unable to resolve smaller circulations corresponding to shallower boundary layers, instead producing invariant MCC horizontal scale for all simulated boundary layers depths. The results imply that climate models with grid spacing of roughly 3 km or smaller may be needed to properly simulate the MCC structure in the marine stratocumulus regions.

Martini, Matus; Gustafson, William I.; Yang, Qing; Xiao, Heng

2014-11-27T23:59:59.000Z

180

Effect of Observation Network Design on Meteorological Forecasts of Asian Dust Events  

Science Journals Connector (OSTI)

To improve the prediction of Asian dust events on the Korean Peninsula, meteorological fields must be accurately predicted because dust transport models require them as input. Accurate meteorological forecasts could be obtained by integrating ...

Eun-Gyeong Yang; Hyun Mee Kim; JinWoong Kim; Jun Kyung Kay

2014-12-01T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

2006 EUMETSAT METEOROLOGICAL SATELLITE CONFERENCE Helsinki, Finland 12 -16 June 2006  

E-Print Network [OSTI]

, satellite products, method, results, conclusions and applications. INTRODUCTION TO (KNMI) WEATHER RADARS2006 EUMETSAT METEOROLOGICAL SATELLITE CONFERENCE Helsinki, Finland 12 - 16 June 2006 Synergetic Satellite and radar products are important data sources for operational meteorology. They provide

Stoffelen, Ad

182

The Evolution of Objective Analysis Methodology at the National Meteorological Center  

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The objective analysis of meteorological variables has been routinely performed at the National Meteorological Center (NMC) since October 1955. In the first few years, much attention was devoted to incorporating three principles of subjective ...

Clifford H. Dey

1989-09-01T23:59:59.000Z

183

Characterization of wind noise by the boundary layer meteorology  

Science Journals Connector (OSTI)

The fluctuations in pressure generated by turbulent motions of the atmospheric boundary layer are a principal noise source in outdoor acoustic measurements. The mechanics of wind noise involve not only stagnation pressure fluctuations at the sensor but also shearing and self-interaction of turbulence throughout the flow particularly at low frequencies. The contributions of these mechanisms can be described by the boundary-layer meteorology. An experiment was conducted at the National Wind Institute's 200-meter meteorological tower located outside Lubbock Texas in the Llano Estacado region. For two days a 44-element 400-meter diameter array of unscreened NCPA-UMX infrasound sensors recorded wind noise continuously while the tower and a Doppler SODAR measured vertical profiles of the boundary layer. Analysis of the fluctuating pressure with the meteorological data shows that the statistical structure of wind noise depends on both mean velocity distribution and buoyant stability. The root-mean-square pressure exhibits distinct scalings for stable and unstable stratification. Normalization of the pressure power spectral density depends on the outer scales. In stable conditions the kurtosis of the wind noise increases with Reynolds number. Measures of noise intermittency are explored with respect to the meteorology.

2014-01-01T23:59:59.000Z

184

81Bulletin of the American Meteorological Society 1. Introduction  

E-Print Network [OSTI]

1998. © 1999 American Meteorological Society ABSTRACT Shipborne Doppler radar operations were conducted 50 km of each other to conduct coordinated dual-Doppler scanning. The dual- Doppler operations were and Lukas 1992) was conducted in the warm- pool region of the western Pacific Ocean. The scien- tific goals

Rutledge, Steven

185

483Bulletin of the American Meteorological Society 1. Introduction  

E-Print Network [OSTI]

483Bulletin of the American Meteorological Society 1. Introduction The marine stratocumulus1 transit from the ITCZ to San Diego as an ad hoc use of the ship and its instruments for the remaining 8 days of ship time. Since TEPPS was designed as an ITCZ experiment, the ship was not equipped with many

Houze Jr., Robert A.

186

Use of Visible Geostationary Operational Meteorological Satellite Imagery in  

E-Print Network [OSTI]

10 Use of Visible Geostationary Operational Meteorological Satellite Imagery in Mapping Reference is typically computed at specific locations based on weather station data. Estimates of incoming solar radiation (insolation, or Rs) have been made from geostationary satellite data over a 14-year period (1 June

187

Programperformance BUREAU OF METEOROLOGY ANNUAL REPORT 201213 121  

E-Print Network [OSTI]

and reliably provide weather, climate, ocean and water products and services. Highly resilient and reliable's supercomputer, and maintaining data communication links to observing sites, often in remote locations or extreme of meteorological and related data from the observational network to the Central Computing Facility and Regional

Greenslade, Diana

188

The International Station Meteorological Climate Summary CD-ROM  

Science Journals Connector (OSTI)

The International Station Meteorological Climate Summary (ISMCS)is a Compact Disc-Read Only Memory(CD-ROM)containing climatic records for 640 primary weather-observation sites and over 5800 secondary sites around the world. When used with a ...

Terry Jarrett

1992-10-01T23:59:59.000Z

189

METEOROLOGY 280 Recent Developments in Air Quality Instrumentation  

E-Print Network [OSTI]

METEOROLOGY 280 Recent Developments in Air Quality Instrumentation San José State University Spring the student to standard air quality instrumentation and the process in setting up and calibration of those the supervision of the instructor. You will have the opportunity to build the air quality laboratory

Clements, Craig

190

Private Sector Meteorology: Using science to solve problems  

E-Print Network [OSTI]

@dewberry.com #12;Hydro-meteorological project experience 2000-2012 (HDR and Dewberry) Flash Flood Predict ion Flood Detection Networks Climate Change #12;Dewberry is growing west #12;Our Team John Henz, CCM Senior Meteorologist Robert Rahrs, GISP Meteorologist Stuart Geiger, CFM Flood Risk Advisor Mathew Mampara, PE, CFM

191

2359Bulletin of the American Meteorological Society 1. Introduction  

E-Print Network [OSTI]

2359Bulletin of the American Meteorological Society 1. Introduction A devastating flash flood in Fort Collins, Colorado, on 28 July 1997 resulted in 5 deaths, 62 injuries re- quiring hospitalization frequencies. Significant flooding oc- curred in about half the city, with the most serious events taking place

Collett Jr., Jeffrey L.

192

Sensitivity of Mesoscale Gravity Waves to the Baroclinicity of Jet-Front Systems SHUGUANG WANG AND FUQING ZHANG  

E-Print Network [OSTI]

life cycles of baroclinic waves with a high-resolution mesoscale model. Four simulations are made starting from two-dimensional baroclinic jets having different static stability and wind shear in order-dimensional spectral analysis demonstrates that these gravity waves have multiple components with different wave

193

Four-Dimensional Assimilation of Multitime Wind Profiles over a Single Station and Numerical Simulation of a Mesoscale Convective  

E-Print Network [OSTI]

on the numerical simulation of the convective initiation and evolution. Besides the wind fields, the structureFour-Dimensional Assimilation of Multitime Wind Profiles over a Single Station and Numerical Simulation of a Mesoscale Convective System Observed during IHOP_2002 LEI ZHANG AND ZHAOXIA PU Department

Pu, Zhaoxia

194

The Surface Expression of Semidiurnal Internal Tides near a Strong Source at Hawaii. Part II: Interactions with Mesoscale Currents*  

E-Print Network [OSTI]

: the cyclone causes the energy of internal tide rays propagating through its core to increase near the surface with astronomical forcing because of the presence of mesoscale variability. Internal tide energy is mainly affected but not negligible role, inducing energy transfers between the internal tides and background currents. Furthermore

195

Ensemble Kalman Filter Analyses and Forecasts of a Severe Mesoscale Convective System Using Different Choices of Microphysics Schemes  

Science Journals Connector (OSTI)

A Weather Research and Forecasting Model (WRF)-based ensemble data assimilation system is used to produce storm-scale analyses and forecasts of the 45 July 2003 severe mesoscale convective system (MCS) over Indiana and Ohio, which produced ...

Dustan M. Wheatley; Nusrat Yussouf; David J. Stensrud

2014-09-01T23:59:59.000Z

196

Tests of an Ensemble Kalman Filter for Mesoscale and Regional-Scale Data Assimilation. Part II: Imperfect Model Experiments  

E-Print Network [OSTI]

degraded). As in Part I, where the perfect model assumption was utilized, most analysis error reduction of significant model errors due to physical parameterizations by assimilating synthetic sounding and surfaceTests of an Ensemble Kalman Filter for Mesoscale and Regional-Scale Data Assimilation. Part II

Meng, Zhiyong

197

Mesoscale Self-Assembly: Capillary Bonds and Negative Menisci Ned Bowden, Scott R. J. Oliver, and George M. Whitesides*  

E-Print Network [OSTI]

Mesoscale Self-Assembly: Capillary Bonds and Negative Menisci Ned Bowden, Scott R. J. Oliver., Cambridge, Massachusetts 02138 ReceiVed: September 2, 1999 This paper describes the self-assembly) that examined the self-assembly of hexagonal plates of PDMS (F ) 1.05 g/cm3) that had a density close

Prentiss, Mara

198

October 1986 R. H. Johnson 721 Lower-Tropospheric Warming and Drying in Tropical Mesoscale Convective Systems  

E-Print Network [OSTI]

October 1986 R. H. Johnson 721 Lower-Tropospheric Warming and Drying in Tropical Mesoscale Convective Systems: Implications for the Problem of Cumulus Parameterization By Richard H. Johnson Department beneath the stratiform com- ponents of these systems (Houze, 1977; Zipser, 1977; Johnson and Kriete, 1982

Johnson, Richard H.

199

Presented at the American Meteorological Society Summer Community Meeting Boulder, Colorado August 8 11, 2011 Meteorology and  

E-Print Network [OSTI]

in "green industries", particularly the maturing wind and emerging solar power industries. New BS and MS graduates in meteorology bring an excellent tool kit of quantitative skills and a unique perspective. Their educational backgrounds complement well those of the engineers who often lead power generation programs

Colorado at Boulder, University of

200

Radar MeteorologyRadar Meteorology Feb 20, 1941 10 cm (S-band) radar used to track rain showers (Ligda)  

E-Print Network [OSTI]

10-14 W T/R switch antenna #12;Radar SystemRadar System Transmitter--produces high power pulses similar observations in the early 1940's (U.S. Air Corps meteorologists receiving "radar" training at MIT in 1943 First operational weather radar, Panama, 1943 Science of radar meteorology born from WWII research

Rutledge, Steven

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Mesoscale disturbances in the tropical stratosphere excited by convection: Observations and effects on the stratospheric momentum budget  

SciTech Connect (OSTI)

The importance of the momentum flux of topographically generated mesoscale gravity waves to the extratropical middle atmosphere circulation has been well established for over a decade. Estimates of the zonal forcing due to tropical mesoscale gravity waves, however, are hampered by lack of data on their primarily convective sources. The advent of aircraft measurements over tropical convective systems now makes such estimates possible without the use of ad hoc assumptions about amplitudes and phase speeds. Aircraft measurements from NASA's 1980 Panama and 1987 STEP/Australia Missions show that convectively generated disturbances observed just above the tropopause have horizontal scales comparable to those of the underlying anvils (about 50--100 km) with peak-to-peak isentropic surface variations of about 300--400 m. Satellite imagery of tropical anvil evolution indicates a typical lifetime of about five hours. Assuming that each convective system's impact on the stratosphere can be modeled as a time-dependent [open quotes]mountain[close quotes] with the preceding spatial and time scales, the excited spectrum of gravity waves can be calculated. A suitable quasi-linear wave-mean flow interaction parameterization and satellite-derived cloud area statistics can then be used to evaluate the zonal acceleration as a function of altitude induced by gravity waves from mesoscale convective systems. The results indicate maximum westerly accelerations due to breaking mesoscale gravity waves of almost 0.4 m s[sup [minus]1]/day in the upper stratosphere (in the region of the semiannual oscillation) during September, comparable to but probably smaller than the accelerations induced by planetary-scale Kelvin waves. Calculated easterly accelerations due to breaking mesoscale gravity waves in the QBO region below 35 km are smaller, accounting for about 10% of the required zonal acceleration. 35 refs., 14 figs., 1 tab.

Pfister, L.; Scott, S.; Loewenstein, M. (NASA/Ames Research Center, Moffett Field, CA (United States)); Bowen, S. (San Jose State Univ., CA (United States)); Legg, M. (Synernet, Fremont, CA (United States))

1993-04-15T23:59:59.000Z

202

Variations in environmental tritium doses due to meteorological data averaging and uncertainties in pathway model parameters  

SciTech Connect (OSTI)

The objectives of this research are: (1) to calculate and compare off site doses from atmospheric tritium releases at the Savannah River Site using monthly versus 5 year meteorological data and annual source terms, including additional seasonal and site specific parameters not included in present annual assessments; and (2) to calculate the range of the above dose estimates based on distributions in model parameters given by uncertainty estimates found in the literature. Consideration will be given to the sensitivity of parameters given in former studies.

Kock, A.

1996-05-01T23:59:59.000Z

203

A Coupled Model Study on the Formation and Dissipation of Sea Fogs  

Science Journals Connector (OSTI)

This study examined the impact of airsea coupling using a coupled atmosphereocean modeling system consisting of the Coupled OceanAtmosphere Mesoscale Prediction System as the atmospheric component and the Regional Ocean Modeling System as the ...

Ki-Young Heo; Kyung-Ja Ha

2010-04-01T23:59:59.000Z

204

Sandia National Laboratories: advanced meteorological measurement  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Doppler Velocimeter EC Top Publications A Comparison of Platform Options for Deep-water Floating Offshore Vertical Axis Wind Turbines: An Initial Study Nonlinear Time-Domain...

205

Continental Liquid-phase Stratus Clouds at SGP: Meteorological Influences  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Continental Liquid-phase Stratus Clouds at SGP: Meteorological Influences Continental Liquid-phase Stratus Clouds at SGP: Meteorological Influences and Relationship to Adiabacity Kim, Byung-Gon Kangnung National University Schwartz, Stephen Brookhaven National Laboratory Miller, Mark Brookhaven National Laboratory Min, Qilong State University of New York at Albany Category: Cloud Properties The microphysical properties of continental stratus clouds observed over SGP appear to be substantially influenced by micrometeorological conditions, such as static stability and updraft velocity. These influences may contribute to the observed weak correlation of aerosol light scattering coefficient with cloud-drop effective radius [Kim et al., JGR, 2003], although aerosol light scattering coefficient is not necessarily the most suitable surrogate aerosol property for number concentration of cloud

206

Analysis of meteorological and radiological data for selected fallout episodes  

SciTech Connect (OSTI)

The Weather Service Nuclear Support Office has analyzed the meteorological and radiological data collected for the following atmospheric nuclear tests: TRINITY; EASY of the Tumbler-Snapper series; ANNIE, NANCY, BADGER, SIMON, and HARRY of the Upshot-Knothole series; BEE and ZUCCHINI of the Teapot series; BOLTZMANN and SMOKY of the Plumbbob series; and SMALL BOY of the Dominic II series. These tests were chosen as having the greatest impact on nearby downwind populated locations, contributing approximately 80% of the collective estimated exposure. This report describes the methods of analysis used in deriving fallout-pattern contours and estimated fallout arrival times. Inconsistencies in the radiological data and their resolution are discussed. The methods of estimating fallout arrival times from the meteorological data are described. Comparisons of fallout patterns resulting from these analyses with earlier analyses show insignificant differences in the areas covered or people exposed.

Quinn, V.E. (Weather Service Nuclear Support Office, Las Vegas, NV (USA))

1990-11-01T23:59:59.000Z

207

Improving an Accuracy of ANN-Based Mesoscale-Microscale Coupling Model by Data Categorization: With Application to Wind Forecast for Offshore and Complex Terrain Onshore Wind Farms  

Science Journals Connector (OSTI)

The ANN-based mesoscale-microscale coupling model forecasts wind speed and wind direction with high accuracy for wind parks located in complex terrain onshore, yet some weather regimes remains unresolved and f...

Alla Sapronova; Catherine Meissner

2014-01-01T23:59:59.000Z

208

41JUNE 2005AMERICAN METEOROLOGICAL SOCIETY | (not shown). This warm,  

E-Print Network [OSTI]

41JUNE 2005AMERICAN METEOROLOGICAL SOCIETY | (not shown). This warm, southerly flow accelerates to intense solar radiation, which lead to an early onset of melt. Therefore, an early and pro- longed meltW South 2004 (1), 2003 (2) Egedesminde 68.7ºN, 52.8ºW Central west 2004 (2), 2003 (1) Tasiilaq 65.6ºN, 37

Box, Jason E.

209

Hindawi Publishing Corporation Advances in Meteorology  

E-Print Network [OSTI]

the Impact of Doppler Wind Lidar (DWL) Measurements on the Numerical Simulation of a Tropical Cyclone Lei of the DWL three-dimensional wind profile observations on the numerical simulation and prediction of tropical simulation and prediction of tropical cyclones. Other studies also indicated that including SSM/I wind

Pu, Zhaoxia

210

Testing and Diagnosing the Ability of the Bureau of Meteorologys Numerical Weather Prediction Systems to Support Prediction of Solar Energy Production  

Science Journals Connector (OSTI)

The ability of the Australian Bureau of Meteorologys numerical weather prediction (NWP) systems to predict solar exposure (or insolation) was tested, with the aim of predicting large-scale solar energy several days in advance. The bureaus ...

Paul A. Gregory; Lawrie J. Rikus; Jeffrey D. Kepert

2012-09-01T23:59:59.000Z

211

Coastal Atmospheric Circulation around an Idealized Cape during Wind-Driven Upwelling Studied from a Coupled OceanAtmosphere Model  

Science Journals Connector (OSTI)

The study analyzes atmospheric circulation around an idealized coastal cape during summertime upwelling-favorable wind conditions simulated by a mesoscale coupled oceanatmosphere model. The domain resembles an eastern ocean boundary with a ...

Natalie Perlin; Eric D. Skyllingstad; Roger M. Samelson

2011-03-01T23:59:59.000Z

212

A soil moisture assimilation scheme using satellite-retrieved skin temperature in meso-scale weather forecast model  

Science Journals Connector (OSTI)

A thermodynamically consistent soil moisture assimilation scheme for clear sky and snow free conditions has been developed for the meso-scale modeling system in the Arctic region by using satellite-derived skin temperatures. Parallel control and sensitivity modeling experiments were designed and their results demonstrated that the assimilation scheme successfully improves the soil moistures that were deliberately perturbed initially, indicating capability of the scheme to correct bias in the soil moisture initialization. Moreover, the resultant benefit of this assimilation scheme does not only lie in the improvement of soil moisture; the skin temperature also consequently exhibits improvements in a thermodynamic consistency. A real application of the assimilation scheme with satellite-retrieved skin temperature exhibited noticeable positive impacts on the modeling simulation and weather forecast; the model obviously captured meso-scale features of soil moistures as well as the skin temperatures. The warming tendency bias in original model simulations was removed to a considerable extent by this assimilation scheme.

Jing Zhang; Xiangdong Zhang

2010-01-01T23:59:59.000Z

213

Time changes in a subtropical cloud and weather system as revealed by meteorological satellite data  

E-Print Network [OSTI]

TIME CHANGES IN A SUBTROPICAL CLOUD AND WEATHER SYSTEM AS REVEALED BY METEOROLOGICAL SATELLITE DATA A Thesis By DARRYL RANDERSON Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1962 Ma)or Sub]ect: METEOROLOGY TIME CHANGES IN A SUBTROPICAL CLOUD AND WEATHER SYSTEM AS REVEALED BY METEOROLOGICAL SATELLITE DATA A Thesis By DARRYL RANDERSON Approved as to style and content by...

Randerson, Darryl

2012-06-07T23:59:59.000Z

214

Application of the 85 GHz ice scattering signature to a global study of mesoscale convective systems  

E-Print Network [OSTI]

. . . . . . 90 LIST OF FIGURES Figure Page 24 hour coverage of one SSM/I. Areas in black receive two passes, areas in gray, one, and areas in white, none (Berg and Avery 1995) . . Cross section of a Wisconsin squall line (Spencer et al. 1989...-based tropical rainfall climatology. Seasonal variation in the OLR contours represents the migration of cloudiness between the Northern and Southern Hemispheres. Wolter and Hastenrath (1989), Mitchell and Wallace (1992), and Wang (1994) provide further...

Devlin, Karen Irene

2012-06-07T23:59:59.000Z

215

Study and implementation of mesoscale weather forecasting models in the wind industry.  

E-Print Network [OSTI]

?? As the wind industry is developing, it is asking for more reliable short-term wind forecasts to better manage the wind farms operations and electricity (more)

Jourdier, Bndicte

2012-01-01T23:59:59.000Z

216

A study of wind variability in the lower troposphere through power spectrum analysis at mesoscale frequencies  

E-Print Network [OSTI]

on the theoretical and practical application of the analysis method comes directly from this reference. B. Fundamental Assum tions of Power S ectrum Theor Consider a function of time X(t), such as wind speed, which is generated by a random process. Then the value... of the function X(t) at any particular point in time is a random variable. This random process may or may not have a Gaussian or normal distribution but it is a fundamental assumption (at least in the development of the theory) that the random process...

Cornett, John Sheldon

1966-01-01T23:59:59.000Z

217

A numerical study of mesoscale convection in a rotating tropical atmosphere  

E-Print Network [OSTI]

similar to the profile of a tropical disturbance. The meso-p forcing of convection consisted of' seven temperature perturbations con- fined below 2. 4 km at intervals of 8 km out to 60 km. The meso-9 forcing of convection comprised of a cosine thermal... perturbation field out to 75 km. Two different classes of simulations were performed. The first part explored how background vorticity affects convection generated by meso-7 and meso-9 forcing. The second part investigated how meso-9 forcing of convection...

Fitzpatrick, Patrick James

1992-01-01T23:59:59.000Z

218

E-Print Network 3.0 - air pollution meteorology Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Search Powered by Explorit Topic List Advanced Search Sample search results for: air pollution meteorology Page: << < 1 2 3 4 5 > >> 1 Air Pollution Physics and Chemistry...

219

Equilibrium Structure of a Triblock Copolymer System Revealed by Mesoscale Simulation and Neutron Scattering  

SciTech Connect (OSTI)

We have performed both mesoscale simulations and neutron scattering experiments on Pluronic L62, a poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymer system in aqueous solution. The influence of simulation variables such PEO/PPO block ratio, interaction parameters, and coarse-graining methods is extensively investigated by covering all permutations of parameters found in the literatures. Upon increasing the polymer weight fraction from 50 wt% to 90 wt%, the equilibrium structure of the isotropic, reverse micellar, bicontinuous, worm-like micelle network, and lamellar phases are respectively predicted from the simulation depending on the choices of simulation parameters. Small angle neutron scattering (SANS) measurements show that the same polymer systems exhibit the spherical micellar, lamellar, and reverse micellar phases with the increase of the copolymer concentration at room temperature. Detailed structural analysis and comparison with simulations suggest that one of the simulation parameter sets can provide reasonable agreement with the experimentally observed structures.

Do, Changwoo [ORNL] [ORNL; Chen, Wei-Ren [ORNL] [ORNL; Hong, Kunlun [ORNL] [ORNL; Smith, Gregory Scott [ORNL] [ORNL

2013-01-01T23:59:59.000Z

220

Bench-Scale Cross Flow Filtration of  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4 4 Comparison of Meteorological Measurements from Sparse and Dense Surface Observation Networks in the U.S. Southern Great Plains February 2008 J.W. Monroe Climate Research Section, Environmental Science Division/Argonne National Laboratory Cooperative Institute for Mesoscale Meteorological Studies/University of Oklahoma M.T. Ritsche, M. Franklin Climate Research Section, Environmental Science Division/Argonne National Laboratory, K.E. Kehoe Cooperative Institute for Mesoscale Meteorological Studies/University of Oklahoma Work supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research DISCLAIMER This report was prepared as an account of work sponsored by the U.S.

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Data assimilation for crop yield and CO2 fixation monitoring in Asia by a photosynthetic sterility model using satellites and meteorological data  

Science Journals Connector (OSTI)

This study assimilates satellite and meteorological data to monitor grain yields and CO2 fixation by developing a photosynthetic-sterility model that integrates the Asian scale of meteorological data such as solar radiation, air temperature effects on photosynthesis and the Normalised Difference Vegetation Index (NDVI) with a Satellite Pour l'Observation de la Terre (SPOT) VEGETATION sensor. Monitoring crop production using remotely sensed and daily meteorological data can provide an important early warning regarding poor crop production to Asian countries with their still-growing populations. Grain production monitoring would support orderly crisis management to maintain food security in Asia, which is facing climate fluctuations through this century of global warming. A decision-tree method classifies the distribution of crop fields in Asia using Terra Moderate Resolution Imaging Spectroradiometer (MODIS) and SPOT VEGETATION data, which include the NDVI and Land Surface Water Index (LSWI). The air temperature data are available from the National Centres for Environmental Prediction (NCEP) and European Centre for Medium-Range Weather Forecasts (ECMWF). The solar radiation data are supplied by the Geostationary Meteorological Satellite (GMS) Centre and re-analysis data, by the NCEP and ECMWF. This study provides daily distributions of the photosynthesis rate, which is the CO2 fixation in Asian areas combined with the distribution of grain fields.

Daijiro Kaneko; Toshiro Kumakura; Peng Yang

2009-01-01T23:59:59.000Z

222

Master thesis in Leipzig Cooperation of TROPOS Leipzig and Solar Energy Meteorology at Uni Oldenburg  

E-Print Network [OSTI]

Master thesis in Leipzig ­ Cooperation of TROPOS Leipzig and Solar Energy Meteorology at Uni in meteorology, satellite remote sensing and solar energy · Experiences with data handling and analysis · Good at the surface can be determined from satellite data using the Heliosat method, which is widely used for solar

Peinke, Joachim

223

Master thesis Solar Energy Meteorology Comparison of different methods to estimate cloud height for solar  

E-Print Network [OSTI]

Master thesis ­ Solar Energy Meteorology Comparison of different methods to estimate cloud height: · Interest in meteorology and solar energy · Experiences with data handling and analysis · Good programming for solar irradiance calculations In order to derive incoming solar irradiance at the earths surface

Peinke, Joachim

224

Solar Energy Prediction: An International Contest to Initiate1 Interdisciplinary Research on Compelling Meteorological2  

E-Print Network [OSTI]

of meteorological problems in-44 cluding wind energy, air pollution, winter hydrometeor classification, and storm puter scientists, and specifically machine learning and data mining researchers, are develop-18 ing of meteorological problems including wind energy,22 storm classification, winter hydrometeor classification, and air

Hamill, Tom

225

Workshop on Advances in Meteorology in Texas Department of Atmospheric Sciences, Texas A&M University  

E-Print Network [OSTI]

French · Meteorological education Chair - Craig Epifanio (TAMU) 10:15 AMS education guidelines and NWS) 10:55 Mentoring broadcast meteorology interns: Bob French (KBTX) 11:15 Questions for discussion Center, radar room, broad- cast facility, and observatory will be available. · Forecasting Chair - Gene

226

AFFILIATIONS: Neggers--Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; siebesma--Royal  

E-Print Network [OSTI]

AFFILIATIONS: Neggers--Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; siebesma--Royal Netherlands Meteorological Institute (KNMI), De Bilt, and Delft University of Technology, Delft, Netherlands; Heus--Max Planck Institut für Meteorologie, Hamburg, Germany CORRESPONDING AUTHOR: R

Siebesma, Pier

227

Mesoscale Simulations of a Wind Ramping Event for Wind Energy Prediction  

SciTech Connect (OSTI)

Ramping events, or rapid changes of wind speed and wind direction over a short period of time, present challenges to power grid operators in regions with significant penetrations of wind energy in the power grid portfolio. Improved predictions of wind power availability require adequate predictions of the timing of ramping events. For the ramping event investigated here, the Weather Research and Forecasting (WRF) model was run at three horizontal resolutions in 'mesoscale' mode: 8100m, 2700m, and 900m. Two Planetary Boundary Layer (PBL) schemes, the Yonsei University (YSU) and Mellor-Yamada-Janjic (MYJ) schemes, were run at each resolution as well. Simulations were not 'tuned' with nuanced choices of vertical resolution or tuning parameters so that these simulations may be considered 'out-of-the-box' tests of a numerical weather prediction code. Simulations are compared with sodar observations during a wind ramping event at a 'West Coast North America' wind farm. Despite differences in the boundary-layer schemes, no significant differences were observed in the abilities of the schemes to capture the timing of the ramping event. As collaborators have identified, the boundary conditions of these simulations probably dominate the physics of the simulations. They suggest that future investigations into characterization of ramping events employ ensembles of simulations, and that the ensembles include variations of boundary conditions. Furthermore, the failure of these simulations to capture not only the timing of the ramping event but the shape of the wind profile during the ramping event (regardless of its timing) indicates that the set-up and execution of such simulations for wind power forecasting requires skill and tuning of the simulations for a specific site.

Rhodes, M; Lundquist, J K

2011-09-21T23:59:59.000Z

228

Fine resolution atmospheric sulfate model driven by operational meteorological data: Comparison with observations  

SciTech Connect (OSTI)

The hypothesis that anthropogenic sulfur aerosol influences clear-sky and cloud albedo and can thus influence climate has been advanced by several investigators; current global-average climate forcing is estimated to be of comparable magnitude, but opposite sign, to longwave forcing by anthropogenic greenhouse gases. The high space and time variability of sulfate concentrations and column aerosol burdens have been established by observational data; however, geographic and time coverage provided by data from surface monitoring networks is very limited. Consistent regional and global estimates of sulfate aerosol loading, and the contributions to this loading from different sources can be obtained only by modeling studies. Here we describe a sub-hemispheric to global-scale Eulerian transport and transformation model for atmospheric sulfate and its precursors, driven by operational meteorological data, and report results of calculations for October, 1986 for the North Atlantic and adjacent continental regions. The model, which is based on the Global Chemistry Model uses meteorological data from the 6-hour forecast model of the European Center for Medium-Range Weather Forecast to calculate transport and transformation of sulfur emissions. Time- and location-dependent dry deposition velocities were estimated using the methodology of Wesely and colleagues. Chemical reactions includes gaseous oxidation of SO{sub 2} and DMS by OH, and aqueous oxidation of SO{sub 2} by H{sub 2}O{sub 2} and O{sub 3}. Anthropogenic emissions were from the NAPAP and EMEP 1985 inventories and biogenic emissions based on Bates et al. Calculated sulfate concentrations and column burdens exhibit high variability on spatial scale of hundreds of km and temporal scale of days. Calculated daily average sulfate concentrations closely reproduce observed concentrations at locations widespread over the model domain.

Benkovitz, C.M.; Schwartz, S.E. [Brookhaven National Lab., Upton, NY (United States); Berkowitz, C.M.; Easter, R.C. [Battelle Pacific Northwest Lab., Richland, WA (United States)

1993-09-01T23:59:59.000Z

229

The kinematic and cloud-to-ground lightning structure of the 9-10, June 1998 Red River Mesoscale Convective System  

E-Print Network [OSTI]

An investigation of the kinematic and electrical properties of the 9-10 June, 1998 Red River Mesoscale Convective System (MCS), as observed by the NOAA P3 Tail Radar and the National Lightning Detection Network, is presented. This system exhibits...

Santarpia, Joshua

2012-06-07T23:59:59.000Z

230

Mount Kenya Global Atmosphere Watch Station (MKN): Installation and Meteorological Characterization  

Science Journals Connector (OSTI)

The meteorological conditions at the Mount Kenya (station identifier MKN) tropical Global Atmosphere Watch Programme station are described. Like other stations in mountainous terrain, the site experiences thermally induced wind systems that ...

Stephan Henne; Wolfgang Junkermann; Josiah M. Kariuki; John Aseyo; Jrg Klausen

2008-11-01T23:59:59.000Z

231

767JUNE 2003AMERICAN METEOROLOGICAL SOCIETY | ositive lightning discharges (flashes) are defined  

E-Print Network [OSTI]

767JUNE 2003AMERICAN METEOROLOGICAL SOCIETY | P ositive lightning discharges (flashes) are defined (flashes) that transfer to ground both positive and negative charges are termed bipolar lightning common than positive lightning. Currently available observations of bipolar lightning flashes, which can

Florida, University of

232

MAST/GEOG 667: Wind Power Meteorology Fall 2013, 3 credit hours  

E-Print Network [OSTI]

to understand onshore, offshore, and airborne wind power. Topics include: forces affecting and energy from turbines; and wind measurement technologies. Textbooks (not requiredMAST/GEOG 667: Wind Power Meteorology Fall 2013, 3 credit hours 1

Delaware, University of

233

Impact of land use change on a hydro-meteorological event in Kampala, Uganda  

E-Print Network [OSTI]

Impact of land use change on a hydro-meteorological event in Kampala, Uganda Problem statement Kampala is the capital city of Uganda on the northern shores of Lake Victoria. Here, future climate change

Jetten, Victor

234

Meteorological Impacts of the Cooling Tower of the Goesgen Nuclear Power Plant  

Science Journals Connector (OSTI)

The main meteorological effect due to the Gsgen cooling tower is, in fact, the reduction ... near vicinity (12 km) of the power station. A network of five cinecameras provides ... on 23 points in the vicinity o...

Daniel A. Schneiter

1987-01-01T23:59:59.000Z

235

11971197AUGUST 2007AMERICAN METEOROLOGICAL SOCIETY | The Global Ocean Data Assimilation  

E-Print Network [OSTI]

and in situ observations, for NWP, ocean forecasting, ecosystem applications, and climate research. BY C forecasting, military and defence operations, validating or forcing ocean and atmospheric models, ecosystem11971197AUGUST 2007AMERICAN METEOROLOGICAL SOCIETY | The Global Ocean Data Assimilation Experiment

Merchant, Chris

236

Meteorological tsunamis on the coasts of British Columbia and Washington  

Science Journals Connector (OSTI)

Tsunami-like sea level oscillations recently recorded by tide gauges located at offshore, as well as sheltered, sites along the coasts of British Columbia (Canada) and Washington State (USA) are identified as meteorological tsunamis. The events resemble seismically generated tsunamis but have an atmospheric, rather than seismic, origin. The event of 9 December 2005 was sufficiently strong to trigger an automatic tsunami alarm, while other events generated oscillations in several ports that were potentially strong enough to cause damage to marine craft. Analysis of coincident 1-min sea level data and high-frequency atmospheric pressure data confirms that the events originated with atmospheric pressure jumps and trains of atmospheric gravity waves with amplitudes of 1.53hPa. The pronounced events of 13 July 2007 and 26 February 2008 are examined in detail. Findings reveal that the first atmospheric pressure event had a propagation speed of 24.7m/s and an azimuth of 352; the second event had a speed of 30.6m/s and an azimuth of 60. These speeds and directions are in close agreement with high-altitude geostrophic winds (the jet stream) indicating that the atmospheric disturbances generating the tsunami-like sea level oscillations are likely wind-transported perturbations rather than freely propagating atmospheric gravity waves.

R.E. Thomson; A.B. Rabinovich; I.V. Fine; D.C. Sinnott; A. McCarthy; N.A.S. Sutherland; L.K. Neil

2009-01-01T23:59:59.000Z

237

Use of ARM observations and numerical models to determine radiative and latent heating profiles of mesoscale convective systems for general circulation models  

SciTech Connect (OSTI)

We examined cloud radar data in monsoon climates, using cloud radars at Darwin in the Australian monsoon, on a ship in the Bay of Bengal in the South Asian monsoon, and at Niamey in the West African monsoon. We followed on with a more in-depth study of the continental MCSs over West Africa. We investigated whether the West African anvil clouds connected with squall line MCSs passing over the Niamey ARM site could be simulated in a numerical model by comparing the observed anvil clouds to anvil structures generated by the Weather Research and Forecasting (WRF) mesoscale model at high resolution using six different ice-phase microphysical schemes. We carried out further simulations with a cloud-resolving model forced by sounding network budgets over the Niamey region and over the northern Australian region. We have devoted some of the effort of this project to examining how well satellite data can determine the global breadth of the anvil cloud measurements obtained at the ARM ground sites. We next considered whether satellite data could be objectively analyzed to so that their large global measurement sets can be systematically related to the ARM measurements. Further differences were detailed between the land and ocean MCS anvil clouds by examining the interior structure of the anvils with the satellite-detected the CloudSat Cloud Profiling Radar (CPR). The satellite survey of anvil clouds in the Indo-Pacific region was continued to determine the role of MCSs in producing the cloud pattern associated with the MJO.

Houze, Jr., Robert A. [University of Washington Dept. of Atmospheric Sciences

2013-11-13T23:59:59.000Z

238

Controllable Organization of Quantum Dots into Mesoscale Wires and Cables via Interfacial Block Copolymer Self-Assembly  

Science Journals Connector (OSTI)

Controllable Organization of Quantum Dots into Mesoscale Wires and Cables via Interfacial Block Copolymer Self-Assembly ... Figure 2b,c shows higher magnification AFM images of interesting features within the branched cable network, including a typical branch point (b) and a QD/polymer ring incorporated into the cable (c). ... It was noted that several of the LB films containing ring/cable structures also contained small planar aggregates along the length of the cables where an elevated rim was present at the edge of a relatively flat surface, similar to a continent as described by Devereaux et al.26 It appears that these flat surfaces tend to rupture by formation of a single central hole in a secondary dewetting process, followed by the radial growth of the hole. ...

Robert B. Cheyne; Matthew G. Moffitt

2007-02-23T23:59:59.000Z

239

Formation of Meso-Scale Roughening in 6022-T4 Al Sheets Deformed in Plane-Strain Tension  

E-Print Network [OSTI]

Meso-scale surface roughening evolution in 6022-T4 Al sheets was investigated using plane-strain tension. Formation of grain-scale hills and valleys and their relation to the morphologies and corresponding orientations of surface grains after deformation were examined experimentally. These observations were analyzed using various approaches based on the Schmid and Taylor crystal plasticity models. It was observed that surface grains with and without slip bands tend to form valleys and hills, respectively, wherever these two types of grains are adjacent to each other along the planestrain tension direction. When the sample was pulled along the transverse direction, the formation of hills and valleys by unbanded and banded grains was more lineally organized in the plane-strain (rolling) direction than in the sample which was pulled along the rolling direction. Slip banding and valley formation were principally observed in the surface grains with either very few (1?2) slip systems of high Schmid factors or low Taylor factors, in contrast to non slip-banded and hillforming surface grains. Quantitative analysis using correlation coefficients showed that the Schmid factor provided slightly better agreement than the Taylor factor in predicting slip-banding (and valley-forming) and non slip-banding (and hill-forming) behaviors of surface grains. In addition, measures that quantify the image qualities of EBSPs for selected surface grains suggested that the slip-banded and valley-forming grains contain less lattice distortion than the non slip-banded and Currently at Department of Civil and Environmental Engineering, Carnegie Mellon University, PAhill-forming grains despite the larger strains experienced by these grains. This indicates that dislocations in the slip-banded grains move out of the surface to create deformation without lattice distortion. Plastic interactions between specific neighboring grains are central to the formation of meso-scale surface roughening. 1.

unknown authors

240

Meteorological measurements in the vicinity of a coal burning power plant  

SciTech Connect (OSTI)

High concentrations of sulfur dioxide (SO2) are commonly observed during the cool season in the vicinity of a 2.5 GW coal burning power plant located in the Mae Moh Valley of northern Thailand. The power plant is the source for nearly all of the observed SO2 since there are no other major industrial activities in this region. These high pollution fumigation events occur almost on a daily basis, usually lasting for several hours between late morning and early afternoon. One-hour average SO2 concentrations commonly exceed 1,000 micrograms/cu m. As a result, an increase in the number of respiratory type health complaints have been observed by local clinics during this time of the year. Meteorological data were acquired from a variety of observing platforms during an intensive field study from December 1993 to February 1994. The measurements included horizontal and vertical wind velocity, air temperature, relative humidity, and solar radiation. In addition, turbulent flux measurements were acquired by a sonic anemometer. SO2 measurements were made at seven monitoring sites scattered throughout the valley. These data were used to examine the atmospheric processes which are responsible for these high pollution fumigation events.

Crescenti, G.H.; Gaynor, J.E.

1995-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Daily pollution forecast using optimal meteorological data at synoptic and local scales  

E-Print Network [OSTI]

We present a simple framework to easily pre-select the most essential data for accurately forecasting the concentration of the pollutant PM$_{10}$, based on pollutants observations for the years 2002 until 2006 in the metropolitan region of Lisbon, Portugal. Starting from a broad panoply of different data sets collected at several meteorological stations, we apply a forward stepwise regression procedure that enables us not only to identify the most important variables for forecasting the pollutant but also to rank them in order of importance. We argue the importance of this variable ranking, showing that the ranking is very sensitive to the urban spot where measurements are taken. Having this pre-selection, we then present the potential of linear and non-linear neural network models when applied to the concentration of pollutant PM$_{10}$. Similarly to previous studies for other pollutants, our validation results show that non-linear models in average perform as well or worse as linear models for PM$_{10}$. F...

Russo, Ana; Raischel, Frank; Trigo, Ricardo; Mendes, Manuel

2014-01-01T23:59:59.000Z

242

Near-surface meteorological conditions associated with active resuspension of dust by wind erosion  

SciTech Connect (OSTI)

The meteorological conditions associated with extreme winds in the lee of the Colorado Rocky Mountains were studied from the viewpoint of dust resuspension and dispersion. Wind, dispersion, temperature, and dew point conditions occurring near the surface were discussed in detail for a selected event. Near-surface wind speeds were compared to observations made at a standard sampling height. These field data were developed to aid in validation and interpretation of wind tunnel observations and application of dispersion models to wind erosion resuspension. Three conclusions can immediately be drawn from this investigation. First, wind storms in nature are quite gusty, with gusts exceeding the mean speed by 50 percent or more. However, wind direction variations are small by comparison. Thus, wind tunnel studies should be able to simulate the large along-flow turbulence, while keeping cross-flow turbulence to a moderate level. This also has an application to the puff modeling of high winds. Puff models normally assume that the along-flow dispersion coefficient is equal to the cross-flow value. This study suggests that the along-flow coefficient should be much larger than its cross-flow counterpart. Another conclusion involves the usual assumption of Pasquill-Gifford stability class D. In the event studied here, the atmosphere was well mixed with near-neutral thermal stability, yet the horizontal dispersion stability class varied from G to A. Thus, an assumption of Class D horizontal dispersion during high winds would not have been valid during this case. A final conclusion involves the widely applied assumption of a logarithmic wind speed profile during high wind events. This study has indicated that such an assumption is appropriate.

Hodgin, C.R.

1982-01-01T23:59:59.000Z

243

Alpine meteorology: translations of classic contributions by A. Wagner, E. Ekhart, and F. Defant  

SciTech Connect (OSTI)

The English translations of four classic research papers in Alpine meteorology, originally published in German and French in the 1930s and 1940s are presented in this report. The papers include: A. Wagner's 1938 paper entitled Theory and Observation of Periodic Mountain Winds; E. Ekhart's 1944 paper entitled Contributions to Alpine Meteorology; E. Ekhart's 1948 paper entitled On the Thermal Structure of the Mountain Atmosphere; and F. Defant's 1949 paper entitled A Theory of Slope Winds, Along with Remarks on the Theory of Mountain Winds and Valley Winds. A short introduction to these translations summarizes four recent Alpine meteorology field experients, emphasizing ongoing research that extends the research of Wagner, Ekhart, and Defant. The four experiments include the Innsbruck Slope Wind Experiment of 1978, the MESOKLIP Experiment of 1979, the DISKUS Experiment of 1980, and the ALPEX/MERKUR Experiment of 1982.

Whiteman, C.D.; Dreiseitl, E. (eds.)

1984-06-01T23:59:59.000Z

244

Investigation of Low-Cloud Characteristics Using Mesoscale Numerical Model Data for Improvement of Fog-Detection Performance by Satellite Remote Sensing  

Science Journals Connector (OSTI)

The comprehensive relationship between meteorological conditions and whether low water cloud touches the surface, particularly at sea, is examined with the goal of improving low-cloud detection by satellite. Gridpoint-value data provided by an ...

Haruma Ishida; Kentaro Miura; Teruaki Matsuda; Kakuji Ogawara; Azumi Goto; Kuniaki Matsuura; Yoshiko Sato; Takashi Y. Nakajima

2014-10-01T23:59:59.000Z

245

Analysis of Operation TEAPOT nuclear test BEE radiological and meteorological data  

SciTech Connect (OSTI)

This report describes the Weather Service Nuclear Support Office (WSNSO) analyses of the radiological and meteorological data collected for the BEE nuclear test of Operation TEAPOT. Inconsistencies in the radiological data and their resolution are discussed. The methods of normalizing the radiological data to a standard time and estimating fallout-arrival times are presented. The meteorological situations on event day and the following day are described. A comparison of the WSNSO fallout analysis with an analysis performed in the 1950's is presented. The radiological data used to derive the WSNSO fallout pattern are tabulated in an appendix.

Quinn, V.E.

1986-08-01T23:59:59.000Z

246

The potential of different artificial neural network (ANN) techniques in daily global solar radiation modeling based on meteorological data  

SciTech Connect (OSTI)

The main objective of present study is to predict daily global solar radiation (GSR) on a horizontal surface, based on meteorological variables, using different artificial neural network (ANN) techniques. Daily mean air temperature, relative humidity, sunshine hours, evaporation, and wind speed values between 2002 and 2006 for Dezful city in Iran (32 16'N, 48 25'E), are used in this study. In order to consider the effect of each meteorological variable on daily GSR prediction, six following combinations of input variables are considered: (I)Day of the year, daily mean air temperature and relative humidity as inputs and daily GSR as output. (II)Day of the year, daily mean air temperature and sunshine hours as inputs and daily GSR as output. (III)Day of the year, daily mean air temperature, relative humidity and sunshine hours as inputs and daily GSR as output. (IV)Day of the year, daily mean air temperature, relative humidity, sunshine hours and evaporation as inputs and daily GSR as output. (V)Day of the year, daily mean air temperature, relative humidity, sunshine hours and wind speed as inputs and daily GSR as output. (VI)Day of the year, daily mean air temperature, relative humidity, sunshine hours, evaporation and wind speed as inputs and daily GSR as output. Multi-layer perceptron (MLP) and radial basis function (RBF) neural networks are applied for daily GSR modeling based on six proposed combinations. The measured data between 2002 and 2005 are used to train the neural networks while the data for 214 days from 2006 are used as testing data. The comparison of obtained results from ANNs and different conventional GSR prediction (CGSRP) models shows very good improvements (i.e. the predicted values of best ANN model (MLP-V) has a mean absolute percentage error (MAPE) about 5.21% versus 10.02% for best CGSRP model (CGSRP 5)). (author)

Behrang, M.A.; Assareh, E. [Department of Mechanical Engineering, Young Researchers Club, Islamic Azad University, Dezful Branch (Iran); Ghanbarzadeh, A.; Noghrehabadi, A.R. [Department of Mechanical Engineering, Engineering Faculty, Shahid Chamran University, Ahvaz (Iran)

2010-08-15T23:59:59.000Z

247

Hanford Meteorological Station computer codes: Volume 8, The REVIEW computer code  

SciTech Connect (OSTI)

The Hanford Meteorological Station (HMS) routinely collects meteorological data from sources on and off the Hanford Site. The data are averaged over both 15 minutes and 1 hour and are maintained in separate databases on the Digital Equipment Corporation (DEC) VAX 11/750 at the HMS. The databases are transferred to the Emergency Management System (EMS) DEC VAX 11/750 computer. The EMS is part of the Unified Dose Assessment Center, which is located on on the ground-level floor of the Federal building in Richland and operated by Pacific Northwest Laboratory. The computer program REVIEW is used to display meteorological data in graphical and alphanumeric form from either the 15-minute or hourly database. The code is available on the HMS and EMS computer. The REVIEW program helps maintain a high level of quality assurance on the instruments that collect the data and provides a convenient mechanism for analyzing meteorological data on a routine basis and during emergency response situations.

Andrews, G.L.; Burk, K.W.

1988-08-01T23:59:59.000Z

248

1827DECEMBER 2003AMERICAN METEOROLOGICAL SOCIETY | otating tanks have been in use for many years  

E-Print Network [OSTI]

1827DECEMBER 2003AMERICAN METEOROLOGICAL SOCIETY | R otating tanks have been in use for many years in a wide variety of sizes, from small record-player-type turntables with 10-cm-diameter tanks to the world's largest turntable with its 13-m-diameter tank at Grenoble, France (Sommeria 2001). Rotating table

Schubert, Wayne H.

249

MAY 2004 1117N A S H E T A L . 2004 American Meteorological Society  

E-Print Network [OSTI]

, low-mode, M2 internal tide. Based on the observed turbulent kinetic energy dissipation rate , the high in the global thermohaline circulation, with energy cascading from the surface tide to baroclinic wavesMAY 2004 1117N A S H E T A L . 2004 American Meteorological Society Internal Tide Reflection

Kurapov, Alexander

250

The meteorology of negative cloud-to-ground lightning strokes with large charge moment changes: Implications  

E-Print Network [OSTI]

of the systems produced greater than 50% negative CG lightning, though flash rates tended to be low nearThe meteorology of negative cloud-to-ground lightning strokes with large charge moment changes the stroke (1­2 min?1 on average). The results suggest that negative sprite-parent/class lightning typically

Cummer, Steven A.

251

The meteorology of negative cloud-to-ground lightning strokes with large charge moment changes: Implications  

E-Print Network [OSTI]

% negative CG lightning, though flash rates tended to be low near the stroke (1­2 min?1 on averageThe meteorology of negative cloud-to-ground lightning strokes with large charge moment changes). The results suggest that negative sprite-parent/class lightning typically occurs in precipitation systems

Rutledge, Steven

252

QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY Q. J. R. Meteorol. Soc. 133: 21372141 (2007)  

E-Print Network [OSTI]

) Published online in Wiley InterScience (www.interscience.wiley.com) DOI: 10.1002/qj.179 A note on boundaryDepartment of Meteorology, University of Reading, UK bMet Office, Exeter, UK Abstract: The interaction between extratropical distributions and comparing the low-level winds, the differences are exposed and both of the proposed mechanisms

Reading, University of

253

15 NOVEMBER 2003 3585W A N G E T A L . 2003 American Meteorological Society  

E-Print Network [OSTI]

tropical to subtropical region is a relatively effective area for off-equatorial wind stress to generate-Equatorial Wind XIAOCHUN WANG* AND FEI-FEI JIN Department of Meteorology, School of Ocean and Earth Science and subtropical wind stress forcing. The results show that the wind stress forcing in the tropical and subtropical

Wang, Yuqing

254

Use of Advanced Meteorological Model Output for Coastal Ocean Modeling in Puget Sound  

SciTech Connect (OSTI)

It is a great challenge to specify meteorological forcing in estuarine and coastal circulation modeling using observed data because of the lack of complete datasets. As a result of this limitation, water temperature is often not simulated in estuarine and coastal modeling, with the assumption that density-induced currents are generally dominated by salinity gradients. However, in many situations, temperature gradients could be sufficiently large to influence the baroclinic motion. In this paper, we present an approach to simulate water temperature using outputs from advanced meteorological models. This modeling approach was applied to simulate annual variations of water temperatures of Puget Sound, a fjordal estuary in the Pacific Northwest of USA. Meteorological parameters from North American Region Re-analysis (NARR) model outputs were evaluated with comparisons to observed data at real-time meteorological stations. Model results demonstrated that NARR outputs can be used to drive coastal ocean models for realistic simulations of long-term water-temperature distributions in Puget Sound. Model results indicated that the net flux from NARR can be further improved with the additional information from real-time observations.

Yang, Zhaoqing; Khangaonkar, Tarang; Wang, Taiping

2011-06-01T23:59:59.000Z

255

Improvement of the European Wind Atlas Method by Spatial Interpolation of Meteorological Station Data  

E-Print Network [OSTI]

Improvement of the European Wind Atlas Method by Spatial Interpolation of Meteorological Station Data Hans Georg Beyer*, Matthias Bromeis, Detlev Heinemann, Thomas Pahlke**, Hans-Peter Waldl Energy of a spatial wind energy potential. We have investigated two types of spatial interpolation techniques

Heinemann, Detlev

256

SEPTEMBER 2001 2205S C H U L T Z 2001 American Meteorological Society  

E-Print Network [OSTI]

to be composed of three different airstreams: air-parcel trajectories belonging to the ascending warm conveyor belt, air-parcel trajectories belonging to the cyclonic path of the cold conveyor belt that originateSEPTEMBER 2001 2205S C H U L T Z 2001 American Meteorological Society Reexamining the Cold Conveyor

Schultz, David

257

18 Bureau of Meteorology Annual Report 201314 Hazards, warnings and forecasts  

E-Print Network [OSTI]

and numerical prediction models. #12;19Bureau of Meteorology Annual Report 2013­14 2 Performance Performance programs: · Weather forecasting services; · Flood forecasting and warning services; · Hazard prediction, Warnings and Forecasts portfolio provides a range of forecast and warning services covering weather, ocean

Greenslade, Diana

258

Meteorologically driven trends in sea level rise Alexander S. Kolker1  

E-Print Network [OSTI]

Meteorologically driven trends in sea level rise Alexander S. Kolker1 and Sultan Hameed2 Received] Determining the rate of global sea level rise (GSLR) during the past century is critical to understanding a suite of coastal oceanographic processes. These findings reduce variability in regional sea level rise

Hameed, Sultan

259

Partial Support for the Federal Committee for Meteorological Services and Supporting Research  

SciTech Connect (OSTI)

DOE E-link Report Number DOE/ER62778 1999-2012 Please see attached Final Technical Report (size too large to post here). Annual Products Provided to DOE: Federal Plan for Meteorological Services and Supporting Research; National Hurricane Operations Plan; Interdepartmental Hurricane Conference Summary Report. All reports and publications can be found on the OFCM website, www.ofcm.noaa.gov.

Williamson, Samuel P

2012-04-30T23:59:59.000Z

260

METR 3223: Physical Meteorology II: Cloud Physics, Atmospheric Electricity and Optics  

E-Print Network [OSTI]

METR 3223: Physical Meteorology II: Cloud Physics, Atmospheric Electricity and Optics CLASS: Monday of the physical states and processes of clouds and precipitation as well as atmospheric electricity and optics and results Radar observation and estimation Atmospheric electricity: Electrostatics Electromagnetic wave

Droegemeier, Kelvin K.

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

STATISTICAL METHODS FOR RELATING TEMPERATURE EXTREMES TO LARGE-SCALE METEOROLOGICAL PATTERNS  

E-Print Network [OSTI]

1 STATISTICAL METHODS FOR RELATING TEMPERATURE EXTREMES TO LARGE-SCALE METEOROLOGICAL PATTERNS Rick Extreme Value Analysis: Block Maxima (3) Conditional Extreme Value Analysis: Peaks over Threshold (4) Application to California Temperature Extremes (5) Remaining Work #12;3 #12;4 #12;5 (1) Introduction

Katz, Richard

262

ARM - Events Article  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2, 2007 Events First U.S.-China Symposium on Meteorology to Take Place in Norman, Oklahoma Bookmark and Share The First U.S.-China Symposium on Meteorology: Mesoscale Meteorology...

263

Assessing the CAM5 Physics Suite in the WRF-Chem Model: Implementation, Resolution Sensitivity, and a First Evaluation for a Regional Case Study  

SciTech Connect (OSTI)

A suite of physical parameterizations (deep and shallow convection, turbulent boundary layer, aerosols, cloud microphysics, and cloud fraction) from the global climate model Community Atmosphere Model version 5.1 (CAM5) has been implemented in the regional model Weather Research and Forecasting with chemistry (WRF-Chem). A downscaling modeling framework with consistent physics has also been established in which both global and regional simulations use the same emissions and surface fluxes. The WRF-Chem model with the CAM5 physics suite is run at multiple horizontal resolutions over a domain encompassing the northern Pacific Ocean, northeast Asia, and northwest North America for April 2008 when the ARCTAS, ARCPAC, and ISDAC field campaigns took place. These simulations are evaluated against field campaign measurements, satellite retrievals, and ground-based observations, and are compared with simulations that use a set of common WRF-Chem Parameterizations. This manuscript describes the implementation of the CAM5 physics suite in WRF-Chem provides an overview of the modeling framework and an initial evaluation of the simulated meteorology, clouds, and aerosols, and quantifies the resolution dependence of the cloud and aerosol parameterizations. We demonstrate that some of the CAM5 biases, such as high estimates of cloud susceptibility to aerosols and the underestimation of aerosol concentrations in the Arctic, can be reduced simply by increasing horizontal resolution. We also show that the CAM5 physics suite performs similarly to a set of parameterizations commonly used in WRF-Chem, but produces higher ice and liquid water condensate amounts and near-surface black carbon concentration. Further evaluations that use other mesoscale model parameterizations and perform other case studies are needed to infer whether one parameterization consistently produces results more consistent with observations.

Ma, Po-Lun; Rasch, Philip J.; Fast, Jerome D.; Easter, Richard C.; Gustafson, William I.; Liu, Xiaohong; Ghan, Steven J.; Singh, Balwinder

2014-05-06T23:59:59.000Z

264

Impact of the tropopause temperature on the intensity of tropical cyclones an idealized study using a mesoscale model  

E-Print Network [OSTI]

) models TCs as heat engines, operating29 between the warm ocean and the cold tropopause and converting thermal energy to mechanical30 energy. Variations in the sea surface temperature (SST) have received much

Sobel, Adam

265

Mesoscale Variations of the Atmospheric Snow Line over the Northern Sierra Nevada: Multiyear Statistics, Case Study, and Mechanisms  

E-Print Network [OSTI]

Division, NOAA/ESRL, Boulder, Colorado (Manuscript received 6 July 2012, in final form 27 September 2012, New Haven, Connecticut DAVID E. KINGSMILL CIRES, University of Colorado, and Physical Sciences navigability, river runoff, freshwater resources, and hazards from landslides, av- alanches, and floods

Minder, Justin

266

A STUDY OF ICE ACCUMULATION AND STABILITY IN MARTIAN CRATERS UNDER PAST ORBITAL CONDITIONS USING THE LMD MESOSCALE MODEL.  

E-Print Network [OSTI]

constraints Methodological approach Better understand the local distribution of gullies and glaciers; Blowing snow = snow coming from other areas and brought by winds. Ice sublimation: · High surface temperature, low relative humidity in the lower atmosphere, high wind strength; · High wind erosion. Figure 1

Madeleine, Jean-Baptiste

267

An experimental and numerical investigation of premixed syngas combustion dynamics in mesoscale channels with controlled wall temperature profiles  

Science Journals Connector (OSTI)

Abstract The dynamics in H2/CO/O2/N2 premixed combustion was investigated experimentally and numerically in a 7-mm height mesoscale channel at atmospheric pressure, fuellean equivalence ratios 0.250.42, volumetric CO:H2 ratios 1:1 to 20:1, and wall temperatures 5501320K. Experiments were performed in an optically-accessible channel-flow reactor and involved high-speed (up to 1kHz) planar laser induced fluorescence (LIF) of the OH radical and thermocouple measurements of the upper and lower channel wall temperatures. Simulations were carried out with a transient 2-D code, which included an elementary syngas reaction mechanism and detailed species transport. Demarcation of the experimentally-observed parameter space separating stationary and oscillatory combustion modes indicated that the former were favored at the higher wall temperatures and higher CO:H2 volumetric ratios, while the latter predominately appeared at the lower wall temperatures and lower CO:H2 ratios. The numerical model reproduced very well all stationary combustion modes, which included V-shaped and asymmetric (upper or lower) modes, in terms of flame shapes and flame anchoring positions. Simulations of the oscillatory flames, which appeared in the form of ignition/extinction events of varying spatial extents, were very sensitive to the specific boundary conditions and reproduced qualitatively the flame topology, the ignition sequence (including the periodic reversion from upper-asymmetric to lower-asymmetric flame propagation), and the range of measured oscillation frequencies. Predicted emissions in the stationary modes ranged from 25 to 94ppm-mass for CO and from 0.1 to 0.3ppm-mass for H2, while in the oscillatory modes incomplete combustion of both CO and H2 was attested during their oscillation period.

Andrea Brambilla; Marco Schultze; Christos E. Frouzakis; John Mantzaras; Rolf Bombach; Konstantinos Boulouchos

2014-01-01T23:59:59.000Z

268

Mesoscale properties of clay aggregates from potential of mean force representation of interactions between nanoplatelets  

E-Print Network [OSTI]

Face-to-face and edge-to-edge free energy interactions of Wyoming Na-montmorillonite platelets were studied by calculating potential of mean force along their center to center reaction coordinate using explicit solvent ...

Ebrahimi, Davoud

269

Coupling the High Complexity Land Surface Model ACASA to the Mesoscale Model WRF  

E-Print Network [OSTI]

In this study, the Weather Research and Forecasting Model (WRF) is coupled with the Advanced Canopy-Atmosphere-Soil Algorithm (ACASA), a high complexity land surface model. Although WRF is a state-of-the-art regional ...

Xu, L.

270

Temporal Changes in Wind as Objects for Evaluating Mesoscale Numerical Weather Prediction  

Science Journals Connector (OSTI)

The study describes a method of evaluating numerical weather prediction models by comparing the characteristics of temporal changes in simulated and observed 10-m (AGL) winds. The method is demonstrated on a 1-yr collection of 1-day simulations ...

Daran L. Rife; Christopher A. Davis; Jason C. Knievel

2009-10-01T23:59:59.000Z

271

Six- and Three-Hourly Meteorological Observations from 223 Former U.S.S.R.  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Six- and Three-Hourly Meteorological Observations from 223 Former U.S.S.R. Six- and Three-Hourly Meteorological Observations from 223 Former U.S.S.R. Stations (NDP-048) DOI: 10.3334/CDIAC/cli.ndp048 image PDF image Data image Previous Data (data through 1990, published in 1998) image Investigators Contributed by V. N. Razuvaev, E. B. Apasova, R. A. Martuganov All-Russian Research Institute of Hydrometeorological Information-World Data Centre Obninsk, Russia Prepared by D. P. Kaiser and G. P. Marino (contact: kaiserdp@ornl.gov) Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge, Tennessee Date Published: November 2007

272

Solar Resource & Meteorological Assessment Project (SOLRMAP): Rotating Shadowband Radiometer (RSR); Kalaeloa Oahu, Hawaii (Data)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The U.S. Department of Energy's National Renewable Energy Laboratory collaborates with the solar industry to establish high quality solar and meteorological measurements. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

Wilcox, S.; Andreas, A.

273

Solar Resource & Meteorological Assessment Project (SOLRMAP): Observed Atmospheric and Solar Information System (OASIS); Tucson, Arizona (Data)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The U.S. Department of Energy's National Renewable Energy Laboratory collaborates with the solar industry to establish high quality solar and meteorological measurements. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

Wilcox, S.; Andreas, A.

274

Solar Resource & Meteorological Assessment Project (SOLRMAP): Rotating Shadowband Radiometer (RSR); La Ola Lanai, Hawaii (Data)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The U.S. Department of Energy's National Renewable Energy Laboratory collaborates with the solar industry to establish high quality solar and meteorological measurements. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

Wilcox, S.; Andreas, A.

275

The meteorological monitoring audit, preventative maintenance and quality assurance programs at a former nuclear weapons facility  

SciTech Connect (OSTI)

The purposes of the meteorological monitoring audit, preventative maintenance, and quality assurance programs at the Rocky Flats Environmental Technology Site (Site), are to (1) support Emergency Preparedness (EP) programs at the Site in assessing the transport, dispersion, and deposition of effluents actually or potentially released into the atmosphere by Site operations; and (2) provide information for onsite and offsite projects concerned with the design of environmental monitoring networks for impact assessments, environmental surveillance activities, and remediation activities. The risk from the Site includes chemical and radioactive emissions historically related to nuclear weapons component production activities that are currently associated with storage of large quantities of radionuclides (plutonium) and radioactive waste forms. The meteorological monitoring program provides information for site-specific weather forecasting, which supports Site operations, employee safety, and Emergency Preparedness operations.

Maxwell, D.R. [DynCorp of Colorado, Inc., Golden, CO (United States). Rocky Flats Environmental Technology Site

1995-12-31T23:59:59.000Z

276

Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. (2013) Phenomenology of Sahelian convection observed in Niamey  

E-Print Network [OSTI]

Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. (2013) Phenomenology SM. 2013. Phenomenology of Sahelian convection observed in Niamey during the early monsoon. Q. J. R

Guichard, Francoise

277

24 M meteorological tower data report period: January--December, 1994  

SciTech Connect (OSTI)

This report was prepared by the Desert Research Institute (DRI) for the U.S. Department of Energy (DOE). It summarizes meteorological data collected at the 24 meter tower at the Nevada Test Site Hazardous Material Spill Center (HAZMAT) located at Frenchman Flat near Mercury, Nevada, approximately 75 miles northwest of Las Vegas, Nevada. The tower was originally installed in July, 1993 to characterize baseline conditions for an EPA sponsored experimental research program at the HAZMAT.

Freeman, D.; Bowen, J.; Egami, R. [and others] [and others

1997-08-01T23:59:59.000Z

278

Surface and Tower Meteorological Instrumentation at Atqasuk (METTWR2H) Handbook  

SciTech Connect (OSTI)

The Atqasuk meteorology station (AMET) uses mainly conventional in situ sensors to measure wind speed, wind direction, air temperature, dew point, and humidity mounted on a 10-m tower. It also obtains barometric pressure, visibility and precipitation data from sensors at or near the base of the tower. In addition, a chilled mirror hygrometer (CMH) is located at 1 m for comparison purposes. Temperature and relative humidity (RH) probes are mounted at 2 m and 5 m on the tower.

Ritsche, MT

2006-01-01T23:59:59.000Z

279

Surface and Tower Meteorological Instrumentation at Barrow (METTWR4H) Handbook  

SciTech Connect (OSTI)

The Barrow meteorology station (BMET) uses mainly conventional in situ sensors mounted at four different heights (2m, 10m, 20m and 40m) on a 40 m tower to obtain profiles of wind speed, wind direction, air temperature, dew point and humidity. It also obtains barometric pressure, visibility and precipitation data from sensors at the base of the tower. Additionally, a Chilled Mirror Hygrometer and an Ultrasonic wind speed sensor are located near the 2m level for comparison purposes.

Ritsche, MT

2008-04-01T23:59:59.000Z

280

Correlation of meteorological variables with total suspended particulate matter in Harris County, Texas  

E-Print Network [OSTI]

in Harris County, Texas (August 1983) G. Anderson White, III, B. S. , The University of North Carolina at Chapel Hill; Chairman of Advisory Committee: Dr. K. C. Brundidge A statistical air pollution prediction model was developed for Harris County..., Texas. Routine and readily available meteorological data from Houston Intercontinental Airport, Lake Charles, Louisiana, and Victoria, Texas provided sufficient information to describe Harris County air pollution. Pollution was expressed as total...

White, G. Anderson

1983-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Sensitivity of mesoscale gravity waves to the baroclinicity of jet-front systems  

E-Print Network [OSTI]

energy for five experiments. Stars indicate the timing for each case in Fig. 20. Big circles indicate the timing in Fig. 15. ............................................................................................ 37 xi FIGURE... of mean momentum, energy and potential vorticity allowing the flow to regain a geostrophically balanced state (Cahn 1945; Blumen 1972; Kaplan et al. 1997). In addition, earlier case studies with observational data also revealed a significant impact...

Wang, Shuguang

2006-04-12T23:59:59.000Z

282

MESOSCALE SIMULATION OF ATMOSPHERIC RESPONSE TO CHAOS TERRAIN FORMATION. , S.C.R. Rafkin2  

E-Print Network [OSTI]

(kite@berkeley.edu), 2 Department of Space Studies, Southwest Research Institute, Boulder, Colorado associated with chaos terrain formation may mobilize sand and perhaps gravel, but not boulders. Model, momentum and moisture are parameter- ized using a Monin-Obukhov scheme. Boundary conditions: We flooded

Kite, Edwin

283

Effects of meteorological variables on exergetic efficiency of wind turbine power plants  

Science Journals Connector (OSTI)

This present paper deals with exergy efficiency results of the Wind Turbine Power Plants (WTPPs). Effects of meteorological variables such as air density, pressure difference between state points, humidity, and ambient temperature on exergy efficiency are discussed in a satisfactory way. Some key parameters are given monthly for the three turbines. Exergy efficiency differs from 0.23 to 0.27 while temperature is changing from 268.15K to 308.15K with air density 1.3681.146(kg/m3). While pressure difference (?P) between inlet and outlet of the turbine differs from 100 to 1100(Pa), exergy efficiency decreases fairly for different wind speeds. While specific humidity is changing from 0.001 to 0.015 (kgwater/kgdry air), exergy efficiency decreases gently. Generally these meteorological variables are neglected while planning WTPPs, but this neglect can cause important errors in calculations and energy plans. Obtained results indicate that while planning \\{WTPPs\\} meteorological variables must be taken into account.

Omer Baskut; Onder Ozgener; Leyla Ozgener

2010-01-01T23:59:59.000Z

284

24 m meteorological tower data report period: January through December, 1995  

SciTech Connect (OSTI)

This report was prepared by the Desert Research Institute (DRI) for the US Department of Energy (DOE). It summarizes meteorological data collected at the 24 meter tower at the Nevada Test Site Hazardous Material Spill Center (HAZMAT) located at Frenchman Flat near Mercury, Nevada, approximately 75 miles northwest of Las Vegas, Nevada. The tower was originally installed in July, 1993 to characterize baseline conditions for an EPA sponsored experimental research program at the HAZMAT. A previous report reported monitoring results for 1994. This report presents results of the monitoring for January--December, 1995, providing: a status of the measurement systems (including any quality assurance activities) during the report period and a summary of the meteorological conditions at the HAZMAT during the report period. The scope of the report is limited to summary data analyses and does not include extensive meteorological analysis. The tower was instrumented at 8 levels. Wind speed, wind direction, and temperature were measured at all 8 levels. Relative humidity was measured at 3 levels. Solar and net radiation were measured at 2 meters above the ground. Barometric pressure was measured at the base of the tower and soil temperature was measured near the base of the tower.

Freeman, D.; Bowen, J.B.; Egami, R.; Coulombe, W.; Crow, D.; Cristani, B.; Schmidt, S.

1997-12-01T23:59:59.000Z

285

Hanford meteorological station computer codes: Volume 9, The quality assurance computer codes  

SciTech Connect (OSTI)

The Hanford Meteorological Station (HMS) was established in 1944 on the Hanford Site to collect and archive meteorological data and provide weather forecasts and related services for Hanford Site approximately 1/2 mile east of the 200 West Area and is operated by PNL for the US Department of Energy. Meteorological data are collected from various sensors and equipment located on and off the Hanford Site. These data are stored in data bases on the Digital Equipment Corporation (DEC) VAX 11/750 at the HMS (hereafter referred to as the HMS computer). Files from those data bases are routinely transferred to the Emergency Management System (EMS) computer at the Unified Dose Assessment Center (UDAC). To ensure the quality and integrity of the HMS data, a set of Quality Assurance (QA) computer codes has been written. The codes will be routinely used by the HMS system manager or the data base custodian. The QA codes provide detailed output files that will be used in correcting erroneous data. The following sections in this volume describe the implementation and operation of QA computer codes. The appendices contain detailed descriptions, flow charts, and source code listings of each computer code. 2 refs.

Burk, K.W.; Andrews, G.L.

1989-02-01T23:59:59.000Z

286

North Pacific Mesoscale Coupled Air-Ocean Simulations Compared with Observations  

SciTech Connect (OSTI)

Executive summary The main objective of the study was to investigate atmospheric and ocean interaction processes in the western Pacific and, in particular, effects of significant ocean heat loss in the Kuroshio and Kuroshio Extension regions on the lower and upper atmosphere. It is yet to be determined how significant are these processes are on climate scales. The understanding of these processes led us also to development of the methodology of coupling the Weather and Research Forecasting model with the Parallel Ocean Program model for western Pacific regional weather and climate simulations. We tested NCAR-developed research software Coupler 7 for coupling of the WRF and POP models and assessed its usability for regional-scale applications. We completed test simulations using the Coupler 7 framework, but implemented a standard WRF model code with options for both one- and two-way mode coupling. This type of coupling will allow us to seamlessly incorporate new WRF updates and versions in the future. We also performed a long-term WRF simulation (15 years) covering the entire North Pacific as well as high-resolution simulations of a case study which included extreme ocean heat losses in the Kuroshio and Kuroshio Extension regions. Since the extreme ocean heat loss occurs during winter cold air outbreaks (CAO), we simulated and analyzed a case study of a severe CAO event in January 2000 in detail. We found that the ocean heat loss induced by CAOs is amplified by additional advection from mesocyclones forming on the southern part of the Japan Sea. Large scale synoptic patterns with anomalously strong anticyclone over Siberia and Mongolia, deep Aleutian Low, and the Pacific subtropical ridge are a crucial setup for the CAO. It was found that the onset of the CAO is related to the breaking of atmospheric Rossby waves and vertical transport of vorticity that facilitates meridional advection. The study also indicates that intrinsic parameterization of the surface fluxes within the WRF model needs more evaluation and analysis.

Koracin, Darko; Cerovecki, Ivana; Vellore, Ramesh; Mejia, John; Hatchett, Benjamin; McCord, Travis; McLean, Julie; Dorman, Clive

2013-04-11T23:59:59.000Z

287

Impact of Agricultural Practice on Regional Climate in a CoupledLand Surface Mesoscale Model  

SciTech Connect (OSTI)

The land surface has been shown to form strong feedbacks with climate due to linkages between atmospheric conditions and terrestrial ecosystem exchanges of energy, momentum, water, and trace gases. Although often ignored in modeling studies, land management itself may form significant feedbacks. Because crops are harvested earlier under drier conditions, regional air temperature, precipitation, and soil moisture, for example, affect harvest timing, particularly of rain-fed crops. This removal of vegetation alters the land surface characteristics and may, in turn, affect regional climate. We applied a coupled climate(MM5) and land-surface (LSM1) model to examine the effects of early and late winter wheat harvest on regional climate in the Department of Energy Atmospheric Radiation Measurement (ARM) Climate Research Facility in the Southern Great Plains, where winter wheat accounts for 20 percent of the land area. Within the winter wheat region, simulated 2 m air temperature was 1.3 C warmer in the Early Harvest scenario at mid-day averaged over the two weeks following harvest. Soils in the harvested area were drier and warmer in the top 10 cm and wetter in the 10-20 cm layer. Midday soils were 2.5 C warmer in the harvested area at mid-day averaged over the two weeks following harvest. Harvest also dramatically altered latent and sensible heat fluxes. Although differences between scenarios diminished once both scenarios were harvested, the short-term impacts of land management on climate were comparable to those from land cover change demonstrated in other studies.

Cooley, H.S.; Riley, W.J.; Torn, M.S.; He, Y.

2004-07-01T23:59:59.000Z

288

Evaluation of the WRF meteorological model results during a high ozone episode in SW Poland - the role of model initial conditions  

Science Journals Connector (OSTI)

In meteorological, as well as air quality, modelling, input data plays an important role in the accuracy of the results, next to the model configuration. There are many sources of meteorological data available, both global and regional, and they differ not only by spatial and temporal resolution, but also by the number of observations included in the reanalysis and method of data assimilation used. In this study, the performance of the weather research and forecasting (WRF) model with two global reanalyses (ERA-Interim and NCEP FNL) used as input datasets has been assessed for a period of high tropospheric ozone concentrations. Both WRF model runs are in good agreement with observations, with IOA statistic ranging from 0.78 for wind speed to 0.98 for surface pressure. The ERA-Interim simulation showed better results for surface pressure, temperature and wind speed, while the performance of both datasets for parameters related to atmospheric moisture (e.g., dew point temperature) was comparable.

Kinga Wa?aszek; Maciej Kryza; Ma?gorzata Werner

2014-01-01T23:59:59.000Z

289

Modeling SF{sub 6} plume dispersion in complex terrain and meteorology with a limited data set  

SciTech Connect (OSTI)

Early actions of emergency responders during hazardous material releases are intended to assess contamination and potential public exposure. As measurements are collected, an integration of model calculations and measurements can assist to better understand the situation. This study applied a high resolution version of the operational 3-D numerical models used by Lawrence Livermore National Laboratory to a limited meteorological and tracer data set to assist in the interpretation of the dispersion pattern on a 140 km scale. The data set was collected from a tracer release during the morning surface inversion and transition period in the complex terrain of the Snake River Plain near Idaho Falls, Idaho in November 1993 by the United States Air Force. Sensitivity studies were conducted to determine model input parameters that best represented the study environment. These studies showed that mixing and boundary layer heights, atmospheric stability, and rawinsonde data are the most important model input parameters affecting wind field generation and tracer dispersion. Numerical models and limited measurement data were used to interpret dispersion patterns through the use of data analysis, model input determination, and sensitivity studies. Comparison of the best-estimate calculation to measurement data showed that model results compared well with the aircraft data, but had moderate success with the few surface measurements taken. The moderate success of the surface measurement comparison, may be due to limited downward mixing of the tracer as a result of the model resolution determined by the domain size selected to study the overall plume dispersion. 8 refs., 40 figs., 7 tabs.

Schalk, W.W. III

1996-10-01T23:59:59.000Z

290

Meteorological Monitoring on bikini atoll: system description and data summary (May 2000 - April 2001)  

SciTech Connect (OSTI)

Meteorological data are continuously collected at three sites on Bikini Atoll in support of radioecological research and monitoring programs conducted by the Health and Ecological Assessments Division at the Lawrence Livermore National Laboratory (LLNL). Weather stations were first established on Bikini Atoll in April 1990, and provide information on rainfall, wind speed and direction, air temperature, humidity, and solar radiation. These data and information are used to interpret results of remediation experiments designed to evaluate the effectiveness of potassium fertilizer on reducing the uptake of {sup 137}Cs into locally grown foods. We have also demonstrated that {sup 137}Cs is slowly leached from surface soil by the action of rain water. Long-term meteorological data are crucial to our efforts of developing an understanding of environmental processes controlling the environment loss of {sup 137}Cs in coral atoll soil. In May 2000, older data collection platforms and the DOS-based system that downloaded data from National Oceanic & Atmospheric Administration (NOAA)'s Data Automatic Processing System (DAPS) was decommissioned, and new data loggers, GOES (Geostationary Operational Environmental Satellite) transmitters and antennas were installed. Consequently, new procedures were developed to maintain the field systems, download the data, and reduce and archive the data. This document provides an operational description and status report on the three new meteorological monitoring systems on Bikini Atoll as well as an computational summary of previously recorded data. Included are overviews of procedures for sensor exchange, data recovery and reduction, and specific information about the different sensors. We also provide a description of systems maintenance and trouble shooting activities. This report will be updated on an annual basis.

Gouveia F; Bradsher, R; Brunk, J; Hamilton, T

2002-01-01T23:59:59.000Z

291

3892 VOLUME 17J O U R N A L O F C L I M A T E 2004 American Meteorological Society  

E-Print Network [OSTI]

and Environmental Engineering, University of California, Irvine, Irvine, California E. SMALL Department considerable attention in the hydro- meteorology community. This is partially because most of the monsoon

Small, Eric

292

A study of the use of meteorological factors as criteria for irrigation  

E-Print Network [OSTI]

~ Introduction ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 4 ~ II ~ Review of Literature ~ ~ III ' Procedure and . ethods A. Soil "oisture . "easure . cuts 1 ~ Soil Samolg+ ~ ~ ~ ~ ~ ~ ~ ~ s ~ 2. Tcnsiometers 17 3. Plaster-of Paris Resistance ';)locks B. Pan vvaporation... . . . . . . . . . . 58 Soil Noisture Desarptian Curves Nillsr elep Calibration of Plaster af Paris Resistance Bloahs uith the Col~ Meter (Serial ne. 1'Ig) te read soil moisture tension (pressure membrane salgeu tian) ~ ~ ~ ~ ~ s ~ ~ ~ ~ ~ ~ ~ ~ s ~ e ~ ~ ~ ~ ~ ~ 21...

Satterwhite, Leron Eugene

2012-06-07T23:59:59.000Z

293

Relating geo-meteorological parameters to global solar radiation for Egypt by Iranna-Bapat's estimation models  

Science Journals Connector (OSTI)

Estimation of solar radiation is considered as the most important parameter for the design and development of various solar energy systems. But, the availability of the required data is very scarce and often not readily accessible. The foremost objective of the present study was to estimate the monthly average global solar radiation (GSR) at various locations for Egypt, by the generalised Iranna-Bapat's model. Iranna-Bapat's model is developed to estimate the value of global solar radiation at any location on earth surface. This model uses the most commonly measurable meteorological parameters such as ambient temperature, humidity, windspeed, moisture for a given location. A total of 11 locations spread across the country are used to validate this model. The computed values from Iranna-Bapat's model are compared with the measured values. Iranna-Bapat's model demonstrated acceptable results, and statistically displayed lower RMSE. Therefore this model could be a good estimator for predicting the global solar radiation at other locations for Egypt, where such data is not available.

Iranna Korachagaon; V.N. Bapat

2013-01-01T23:59:59.000Z

294

Case study of Frontal Boundary Study Mission 03  

SciTech Connect (OSTI)

The Frontal Boundary Study was conducted by the Pacific Northwest Laboratory (PNL) for the US Department of Energy in October and November 1989 in central Ohio. This report, which was prepared for the US Environmental Protection Agency, presents the results of the aircraft and surface observations made for one precipitation event during the study, on October 10, 1989. This particular event was selected because of its relatively simple meteorological setting. PNL`s Gulfstream (G-1) aircraft was used to sample trace gas concentrations aloft in the inflow region of the precipitation system. Precipitation chemistry and rainfall rate data are presented for the October 10, 1989, event from the network of surface precipitation samplers. Trace gas concentrations and other meteorological variables measured with the G-1 during flight 03 on this date are included. Meteorological observations obtained with radiosondes and radar are also presented. These data sets can be used to evaluate air quality and wet deposition models.

Barchet, W.R.; Dana, M.T.; Thorp, J.M.

1992-09-01T23:59:59.000Z

295

Case study of Frontal Boundary Study Mission 03  

SciTech Connect (OSTI)

The Frontal Boundary Study was conducted by the Pacific Northwest Laboratory (PNL) for the US Department of Energy in October and November 1989 in central Ohio. This report, which was prepared for the US Environmental Protection Agency, presents the results of the aircraft and surface observations made for one precipitation event during the study, on October 10, 1989. This particular event was selected because of its relatively simple meteorological setting. PNL's Gulfstream (G-1) aircraft was used to sample trace gas concentrations aloft in the inflow region of the precipitation system. Precipitation chemistry and rainfall rate data are presented for the October 10, 1989, event from the network of surface precipitation samplers. Trace gas concentrations and other meteorological variables measured with the G-1 during flight 03 on this date are included. Meteorological observations obtained with radiosondes and radar are also presented. These data sets can be used to evaluate air quality and wet deposition models.

Barchet, W.R.; Dana, M.T.; Thorp, J.M.

1992-09-01T23:59:59.000Z

296

Sub-daily Statistical Downscaling of Meteorological Variables Using Neural Networks  

SciTech Connect (OSTI)

A new open source neural network temporal downscaling model is described and tested using CRU-NCEP reanal ysis and CCSM3 climate model output. We downscaled multiple meteorological variables in tandem from monthly to sub-daily time steps while also retaining consistent correlations between variables. We found that our feed forward, error backpropagation approach produced synthetic 6 hourly meteorology with biases no greater than 0.6% across all variables and variance that was accurate within 1% for all variables except atmospheric pressure, wind speed, and precipitation. Correlations between downscaled output and the expected (original) monthly means exceeded 0.99 for all variables, which indicates that this approach would work well for generating atmospheric forcing data consistent with mass and energy conserved GCM output. Our neural network approach performed well for variables that had correlations to other variables of about 0.3 and better and its skill was increased by downscaling multiple correlated variables together. Poor replication of precipitation intensity however required further post-processing in order to obtain the expected probability distribution. The concurrence of precipitation events with expected changes in sub ordinate variables (e.g., less incident shortwave radiation during precipitation events) were nearly as consistent in the downscaled data as in the training data with probabilities that differed by no more than 6%. Our downscaling approach requires training data at the target time step and relies on a weak assumption that climate variability in the extrapolated data is similar to variability in the training data.

Kumar, Jitendra [ORNL] [ORNL; Brooks, Bjrn-Gustaf J. [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Thornton, Peter E [ORNL] [ORNL; Dietze, Michael [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign

2012-01-01T23:59:59.000Z

297

Solar Technology Acceleration Center (SolarTAC): Solar Resource & Meteorological Assessment Project (SOLRMAP); Aurora, Colorado (Data)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Located in Colorado, near Denver International Airport, SolarTAC is a private, member-based, 74-acre outdoor facility where the solar industry tests, validates, and demonstrates advanced solar technologies. SolarTAC was launched in 2008 by a public-private consortium, including Midwest Research Institute (MRI). As a supporting member of SolarTAC, the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) has established a high quality solar and meteorological measurement station at this location. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

Wilcox, S.; Andreas, A.

298

Emission Controls Versus Meteorological Conditions in Determining Aerosol Concentrations in Beijing during the 2008 Olympic Games  

SciTech Connect (OSTI)

A series of emission control measures were undertaken in Beijing and the adjacent provinces in China during the 2008 Beijing Olympic Games on August 8th-24th, 2008. This provides a unique opportunity for investigating the effectiveness of emission controls on air pollution in Beijing. We conducted a series of numerical experiments over East Asia for the period of July to September 2008 using a coupled meteorology-chemistry model (WRF-Chem). Model can generally reproduce the observed variation of aerosol concentrations. Consistent with observations, modeled concentrations of aerosol species (sulfate, nitrate, ammonium, black carbon, organic carbon, total particulate matter) in Beijing were decreased by 30-50% during the Olympic period compared to the other periods in July and August in 2008 and the same period in 2007. Model results indicate that emission controls were effective in reducing the aerosol concentrations by comparing simulations with and without emission controls. However, our analysis suggests that meteorological conditions (e.g., wind direction and precipitation) are at least as important as emission controls in producing the low aerosol concentrations appearing during the Olympic period. Transport from the regions surrounding Beijing determines the temporal variation of aerosol concentrations in Beijing. Based on the budget analysis, we suggest that emission control strategy should focus on the regional scale instead of the local scale to improve the air quality over Beijing.

Gao, Yi; Liu, Xiaohong; Zhao, Chun; Zhang, Meigen

2011-12-12T23:59:59.000Z

299

Solar Technology Acceleration Center (SolarTAC): Solar Resource & Meteorological Assessment Project (SOLRMAP); Aurora, Colorado (Data)  

SciTech Connect (OSTI)

Located in Colorado, near Denver International Airport, SolarTAC is a private, member-based, 74-acre outdoor facility where the solar industry tests, validates, and demonstrates advanced solar technologies. SolarTAC was launched in 2008 by a public-private consortium, including Midwest Research Institute (MRI). As a supporting member of SolarTAC, the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) has established a high quality solar and meteorological measurement station at this location. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

Wilcox, S.; Andreas, A.

2011-02-11T23:59:59.000Z

300

FEBRUARY 2001 481D R I J F H O U T A N D H A Z E L E G E R 2001 American Meteorological Society  

E-Print Network [OSTI]

models the unresolved scales that contain the most energy are the mesoscale eddies. Dif- fusion energy and the subsequent downgradient transport of thickness. Also, advection of perturbation thickness of the coordinate direc- tions in nonisopycnic coordinate models. The notion that eddies provide an advective

Drijfhout, Sybren

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. 139: 101118, January 2013 A Gravity waves over Antarctica and the Southern Ocean  

E-Print Network [OSTI]

simulations and stratospheric balloon observations Riwal Plougonven,a * Albert Hertzogb and Lionel Gueza in mesoscale simulations and stratospheric balloon observations. Q. J. R. Meteorol. Soc. 139: 101­118. DOI:10 Normale Sup´erieure, IPSL, 24 rue Lhomond, Paris 75005, France. E-mail: plougon@lmd.ens.fr Stratospheric

Plougonven, Riwal

302

2676 VOLUME 16J O U R N A L O F C L I M A T E 2003 American Meteorological Society  

E-Print Network [OSTI]

Atmospheric Solar Radiative Transfer Models: Interpretation and Handling of Unresolved Clouds H. W. BARKER,a G. YANGr a Meteorological Service of Canada, Downsview, Ontario, Canada b Colorado State University, Fort Langley Research Center, Hampton, Virginia m Meteorological Service of Canada, Victoria, British Columbia

Stephens, Graeme L.

303

Use of ARM observations and numerical models to determine radiative and latent heating profiles of mesoscale convective systems for general circulation models  

SciTech Connect (OSTI)

This three-year project, in cooperation with Professor Bob Houze at University of Washington, has been successfully finished as planned. Both ARM (the Atmospheric Radiation Measurement Program) data and cloud-resolving model (CRM) simulations were used to identify the water budgets of clouds observed in two international field campaigns. The research results achieved shed light on several key processes of clouds in climate change (or general circulation models), which are summarized below. 1. Revealed the effect of mineral dust on mesoscale convective systems (MCSs) Two international field campaigns near a desert and a tropical coast provided unique data to drive and evaluate CRM simulations, which are TWP-ICE (the Tropical Warm Pool International Cloud Experiment) and AMMA (the African Monsoon Multidisciplinary Analysis). Studies of the two campaign data were contrasted, revealing that much mineral dust can bring about large MCSs via ice nucleation and clouds. This result was reported as a PI presentation in the 3rd ASR Science Team meeting held in Arlington, Virginia in March 2012. A paper on the studies was published in the Journal of the Atmospheric Sciences (Zeng et al. 2013). 2. Identified the effect of convective downdrafts on ice crystal concentration Using the large-scale forcing data from TWP-ICE, ARM-SGP (the Southern Great Plains) and other field campaigns, Goddard CRM simulations were carried out in comparison with radar and satellite observations. The comparison between model and observations revealed that convective downdrafts could increase ice crystal concentration by up to three or four orders, which is a key to quantitatively represent the indirect effects of ice nuclei, a kind of aerosol, on clouds and radiation in the Tropics. This result was published in the Journal of the Atmospheric Sciences (Zeng et al. 2011) and summarized in the DOE/ASR Research Highlights Summaries (see http://www.arm.gov/science/highlights/RMjY5/view). 3. Used radar observations to evaluate model simulations In cooperation with Profs. Bob Houze at University of Washington and Steven Rutledge at Colorado State University, numerical model results were evaluated with observations from W- and C-band radars and CloudSat/TRMM satellites. These studies exhibited some shortcomings of current numerical models, such as too little of thin anvil clouds, directing the future improvement of cloud microphysics parameterization in CRMs. Two papers of Powell et al (2012) and Zeng et al. (2013), summarizing these studies, were published in the Journal of the Atmospheric Sciences. 4. Analyzed the water budgets of MCSs Using ARM data from TWP-ICE, ARM-SGP and other field campaigns, the Goddard CRM simulations were carried out to analyze the water budgets of clouds from TWP-ICE and AMMA. The simulations generated a set of datasets on clouds and radiation, which are available http://cloud.gsfc.nasa.gov/. The cloud datasets were available for modelers and other researchers aiming to improve the representation of cloud processes in multi-scale modeling frameworks, GCMs and climate models. Special datasets, such as 3D cloud distributions every six minutes for TWP-ICE, were requested and generated for ARM/ASR investigators. Data server records show that 86,206 datasets were downloaded by 120 users between April of 2010 and January of 2012. 5. MMF simulations The Goddard MMF (multi-scale modeling framework) has been improved by coupling with the Goddard Land Information System (LIS) and the Goddard Earth Observing System Model, Version 5 (GOES5). It has also been optimized on NASA HEC supercomputers and can be run over 4000 CPUs. The improved MMF with high horizontal resolution (1 x 1 degree) is currently being applied to cases covering 2005 and 2006. The results show that the spatial distribution pattern of precipitation rate is well simulated by the MMF through comparisons with satellite retrievals from the CMOPRH and GPCP data sets. In addition, the MMF results were compared with three reanalyses (MERRA, ERA-Interim and CFSR). Although the MMF tends

Tao, Wei-Kuo; Houze, Robert, A., Jr.; Zeng, Xiping

2013-03-14T23:59:59.000Z

304

Correlation Between Lightning Flash Count and Meteorological ParCorrelation Between Lightning Flash Count and Meteorological Parametersameters [[AE31AAE31A--0027]0027] Results: Mixing Ratio, CAPE, and TemperatureResults: Mixing Ratio, CAPE, and Temperatur  

E-Print Network [OSTI]

Correlation Between Lightning Flash Count and Meteorological ParCorrelation Between Lightning Flash with afternoon lightning, with average correlation coefficients [Taylor96] of 0.7. We also found, in Oklahoma, the dry-bulb temperature at 500 hPa (weakly) inversely correlates with lightning. We noted with interest

Mass, Clifford F.

305

Meteorological and air quality data quarterly report. WIPP site: Eddy County, New Mexico. Summer quarter, June 1977-August 1977  

SciTech Connect (OSTI)

The purpose of the WIPP meteorological, air quality, and radiological measurements program was to support the environmental effort for the evaluation of the site suitability. This data report is the latest in a series of seasonal quarterly data summaries to be issued for the southeastern New Mexico site.

Pocalujka, L.P.; Babij, E.; Catizone, P.A.; Church, H.W.

1980-06-01T23:59:59.000Z

306

JANUARY 1999 5L A Z A R U S E T A L . 1999 American Meteorological Society  

E-Print Network [OSTI]

-Chen­Zhang Single-Doppler Velocity Retrieval STEVEN LAZARUS, ALAN SHAPIRO, AND KELVIN DROEGEMEIER School address: Dr. Steven Lazarus, Department of Meteorology, University of Utah, 819 Wm. C. Browning Bldng) wind components. For example, Shapiro et al. (1995) apply a two-scalar con- servation technique whereby

Droegemeier, Kelvin K.

307

Why does the Atlantic Ocean form the northern hemisphere deep Johan Nilsson, Department of Meteorology, Stockholm University, Sweden.  

E-Print Network [OSTI]

is the fact that the meridional gradients due to temperature and salinity have opposite effect on the density gradient: the temperature gradient acts to drive the surface water polewards, whereas the salinity gradient of Meteorology, Stockholm University, Sweden. Background The Atlantic Ocean stands out as the most saline

Nilsson, Johan

308

MARCH 1999 857Z E N G A N D N E E L I N 1999 American Meteorological Society  

E-Print Network [OSTI]

MARCH 1999 857Z E N G A N D N E E L I N 1999 American Meteorological Society A Land surface albedo reflects more solar radiation into space. A positive feedback by moisture convergence: central Africa, the Maritime Continent, and the Amazon. A mean an- nual rainfall of over 2000 mm sustains

Zeng, Ning

309

NOVEMBER 1999 3305Y U A N D M E C H O S O 1999 American Meteorological Society  

E-Print Network [OSTI]

NOVEMBER 1999 3305Y U A N D M E C H O S O 1999 American Meteorological Society Links between Annual surface due to shielding from solar radiation. In addition, the cooling extended northward to the south of the equator in the eastern tropical Pacific and west- ward along the equator in the central Pacific. Ma et al

Yu, Jin-Yi

310

Annual Report 2010 | 1Ministry of Infrastructure and the Environment | Royal Netherlands Meteorological Institute Annual Report 2010  

E-Print Network [OSTI]

Annual Report 2010 | 1Ministry of Infrastructure and the Environment | Royal Netherlands of Infrastructure and the Environment | Royal Netherlands Meteorological Institute Annual Report 2010 KNMI round the clock #12;2 | Annual report 2010 Ministry of Infrastructure and the Environment | Royal Netherlands

Stoffelen, Ad

311

Buoyant thermal plumes from planetary landers and rovers: Application to sizing of meteorological masts  

Science Journals Connector (OSTI)

AbstractObjective Landers on Mars and Titan may have warm surfaces as a result of solar heating or the carriage of radioisotope power sources. This warmth can perturb downwind meteorological measurements, but cannot be modeled as a simple aerodynamic wake because buoyant forces can be significant. Methods We use an analytic model from the industrial aerodynamics literature on smoke dispersion from fires and smokestacks to evaluate the plume trajectories. Computational Fluid Dynamics (CFD) simulations are also performed for a Titan lander. Results CFD yields results similar to the analytic model. (Albeit with a possibly weaker dependence on windspeed than the classic model.) We apply the models to evaluate the probability of immersion of instrumentation in plumes from the Mars Science Laboratory (MSL) Curiosity and for a Titan lander under various wind scenarios. Conclusions Lander perturbations can be easily calculated. Practice implications None.

Ralph D. Lorenz; Kristin S. Sotzen

2014-01-01T23:59:59.000Z

312

Winter wheat yield forecasting in Ukraine based on Earth observation, meteorological data and biophysical models  

Science Journals Connector (OSTI)

Ukraine is one of the most developed agriculture countries and one of the biggest crop producers in the world. Timely and accurate crop yield forecasts for Ukraine at regional level become a key element in providing support to policy makers in food security. In this paper, feasibility and relative efficiency of using moderate resolution satellite data to winter wheat forecasting in Ukraine at oblast level is assessed. Oblast is a sub-national administrative unit that corresponds to the NUTS2 level of the Nomenclature of Territorial Units for Statistics (NUTS) of the European Union. NDVI values were derived from the MODIS sensor at the 250m spatial resolution. For each oblast NDVI values were averaged for a cropland map (Rainfed croplands class) derived from the ESA GlobCover map, and were used as predictors in the regression models. Using a leave-one-out cross-validation procedure, the best time for making reliable yield forecasts in terms of root mean square error was identified. For most oblasts, NDVI values taken in AprilMay provided the minimum RMSE value when comparing to the official statistics, thus enabling forecasts 23 months prior to harvest. The NDVI-based approach was compared to the following approaches: empirical model based on meteorological observations (with forecasts in AprilMay that provide minimum RMSE value) and WOFOST crop growth simulation model implemented in the CGMS system (with forecasts in June that provide minimum RMSE value). All three approaches were run to produce winter wheat yield forecasts for independent datasets for 2010 and 2011, i.e. on data that were not used within model calibration process. The most accurate predictions for 2010 were achieved using the CGMS system with the RMSE value of 0.3tha?1 in June and 0.4tha?1 in April, while performance of three approaches for 2011 was almost the same (0.50.6tha?1 in April). Both NDVI-based approach and CGMS system overestimated winter wheat yield comparing to official statistics in 2010, and underestimated it in 2011. Therefore, we can conclude that performance of empirical NDVI-based regression model was similar to meteorological and CGMS models when producing winter wheat yield forecasts at oblast level in Ukraine 23 months prior to harvest, while providing minimum requirements to input datasets.

Felix Kogan; Nataliia Kussul; Tatiana Adamenko; Sergii Skakun; Oleksii Kravchenko; Oleksii Kryvobok; Andrii Shelestov; Andrii Kolotii; Olga Kussul; Alla Lavrenyuk

2013-01-01T23:59:59.000Z

313

Solar Resource and Meteorological Assessment Project (SOLRMAP): Rotating Shadowband Radiometer (RSR); Escalante Tri-State - Prewitt, New Mexico (Data)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The U.S. Department of Energy's National Renewable Energy Laboratory collaborates with the solar industry to establish high quality solar and meteorological measurements. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

Wilcox, S.; Andreas, A.

314

Effect of meteorological data averaging times on plume concentrations from explosive ordnance disposal open burning operations. Master`s thesis  

SciTech Connect (OSTI)

Explosive Ordnance Disposal (EOD) Open Burning (OB) operations are performed to treat and dispose of unserviceable munitions in the Department of Defense (DOD) inventory. This thesis effort sought to develop a computer model, based upon the Gaussian Puff Equation. The model varies from standard plume modeling practices by not making the assumption that the wind direction, wind speed and turbulence are uniform throughout the duration of the burn. The model assigns meteorological data to each explosion (puff) generated by the OB source. The experiments in this research effort assigned meteorological data to the puffs based upon averaging the weather data over 1, 10, and 60 minute periods. The results of the research showed that there was a statistically significant difference (95% confidence) between 1 minute and 60 minute weather data plume concentrations in the receptor grid in 100% of the experiments performed.

Widmann, I.L.

1995-12-01T23:59:59.000Z

315

Validation of the guidelines for portable meteorological instrument packages. Task IV. Development of an insolation handbook and instrumentation package  

SciTech Connect (OSTI)

The purpose of this report is to show how the objective of developing guidelines for a solar energy related portable meteorology instrument package, under the auspices of the International Energy Agency (IEA), was carried out and preliminarily demonstrated and validated. A project to develop guidelines for such packages was initiated at IEA's Solar Heating and Cooling of Buildings Program Expert's Meeting held in Norrkoping, Sweden in February 1976. An international comparison of resultant devices was conducted on behalf of the IEA at a conference held in Hamburg, Federal Republic of Germany, in 1978. Results of the 1978 Hamburg comparison of two devices and the Swiss Mobile Solar Radiation System, using German meteorological standards, are discussed. The consensus of the IEA Task Group is that the objective of the subtask has been accomplished.

None

1980-10-01T23:59:59.000Z

316

An Account and Abstract of the Meteorological Diaries Communicated to the Royal Society, for the Years 1729 and 1730. By Geo. Hadley, Esq; F. R. S.  

Science Journals Connector (OSTI)

...the Meteorological Diaries Communicated to the Royal Society, for the Years 1729 and 1730. By Geo. Hadley, Esq; F. R. S. Geo. Hadley The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Philosophical...

1737-01-01T23:59:59.000Z

317

kogan-98.pdf  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Effect of Cloud Geometrical Thickness The Effect of Cloud Geometrical Thickness Variability on Optical Depth Z. N. Kogan and Y. L. Kogan Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction The formulation of the cloud-radiation feedback is compounded by extreme variability of clouds over a wide range of scales. In this study, we address the problem of geometry and spatial inhomogeneity in stratiform cloud layers and its influence on cloud optical depth. The investigation is based on the Cooperative Institute for Mesoscale Meteorological Studies (CIMMS) large eddy simulation model with explicit microphysics (Kogan et al. 1995). The two commonly used parameterizations of the cloud optical depth, which are based on simplified assumptions about cloud geometry and the spatial

318

Tonopah Test Range Air Monitoring: CY2013 Meteorological, Radiological, and Airborne Particulate Observations  

SciTech Connect (OSTI)

In 1963, the U.S. Department of Energy (DOE) (formerly the Atomic Energy Commission [AEC]), implemented Operation Roller Coaster on the Tonopah Test Range (TTR) and an adjacent area of the Nevada Test and Training Range (NTTR) (formerly the Nellis Air Force Range). This test resulted in radionuclide-contaminated soils at Clean Slate I, II, and III. This report documents observations made during on-going monitoring of radiological, meteorological, and dust conditions at stations installed adjacent to Clean Slate I and Clean Slate III and at the TTR Range Operations Control center. The primary objective of the monitoring effort is to determine if winds blowing across the Clean Slate sites are transporting particles of radionuclide-contaminated soils beyond both the physical and administrative boundaries of the sites. Results for the calendar year (CY) 2013 monitoring include: (1) the gross alpha and gross beta values from the monitoring stations are approximately equivalent to the highest values observed during the CY2012 reporting at the surrounding Community Environmental Monitoring Program (CEMP) stations (this was the latest documented data available at the time of this writing); (2) only naturally occurring radionuclides were identified in the gamma spectral analyses; (3) the ambient gamma radiation measurements indicate that the average annual gamma exposure is similar at all three monitoring stations and periodic intervals of increased gamma values appear to be associated with storm fronts passing through the area; and (4) the concentrations of both resuspended dust and saltated sand particles generally increase with increasing wind speed. However, differences in the observed dust concentrations are likely due to differences in the soil characteristics immediately adjacent to the monitoring stations. Neither the resuspended particulate radiological analyses nor the ambient gamma radiation measurements suggest wind transport of radionuclide-contaminated soils.

Mizell, Steve A [DRI; Nikolich, George [DRI; Shadel, Craig [DRI; McCurdy, Greg [DRI; Etyemezian, Vicken [DRI; Miller, Julianne J [DRI

2014-10-01T23:59:59.000Z

319

Tropical Cyclone Mekkhala (2008) Formation over the South China Sea: Mesoscale, Synoptic-scale and Large-scale Contributions  

Science Journals Connector (OSTI)

Tropical cyclone formation close to the coastline of the Asian continent presents a significant threat to heavily populated coastal countries. A case study of Tropical Storm Mekkhala (2008) that developed off the coast of Vietnam is presented ...

Myung-Sook Park; Hyeong-Seog Kim; Chang-Hoi Ho; Russell L. Elsberry; Myong-In Lee

320

Mesoscale Energy Spectra of the Mei-Yu Front System. Part II: Moist Available Potential Energy Spectra  

Science Journals Connector (OSTI)

In Part II of this study, a new formulation of the spectral energy budget of moist available potential energy (MAPE) and kinetic energy is derived. Compared to previous formulations, there are three main improvements: (i) the Lorenz available ...

Jun Peng; Lifeng Zhang; Yu Luo; Chunhui Xiong

2014-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

splitt(2)-98.pdf  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

9 9 Continued Assessment of WSR-88D Wind Data to Support ARM Single-Column Model IOPs M. E. Splitt Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction WSR-88D radar wind data from radars within the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) site are used to provide vertical wind profiles of the horizontal wind and divergence. Assessment of the utility of this data is conducted as well as made available for use by the ARM scientific community. WSR-88D Data Availability Radar data from selected intensive observation periods (IOPs) are being acquired at the Cooperative Institute for Mesoscale Meteorological Studies (CIMMS). Processed radar data are available via http://mana-tee.gcn.ou.edu/

322

GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 3, PAGES 377-380, FEBRUARY 1, 2000 Anomalous scaling of mesoscale tropospheric humidity  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 3, PAGES 377-380, FEBRUARY 1, 2000 Anomalous scaling will take up to 20 s to respond. In this paper we report the first sci- entific results using the full 20-Hz on the idea of chaotic isentropic lateral mixing [e.g., Emanuel and Pierrehumbert, 1996]. Our present study

Cho, John Y. N.

323

Cold domes over the warm pool: a study of the properties of cold domes produced by mesoscale convective systems during TOGA COARE  

E-Print Network [OSTI]

in specific humidity within their cold domes. As a result, increases in the latent heat fluxes observed in the cold domes were more dependent on the increases in wind speed. Stronger cold domes (cool, dry and strong winds) were associated with squall line MCSs...

Caesar, Kathy-Ann Lois

2012-06-07T23:59:59.000Z

324

An investigation of rainfall variability and distribution in Luzon and a mesoscale study of rainfall of the province of Laguna and adjacent areas, Philippines  

E-Print Network [OSTI]

cover only from 1962 through 1965. r'~OCt 81'IO '-. -4' L ! t Q, Leg en d: 500 &t ----- 1000 tt "-" ~ ~ )1000 ft v'?+ S 121 o MANILA -~ 2~2 )' ~ P. ' )~, o' ) \\ t:. , ~ J, LANrj; ' 3i5)'. v. ', ' wucena 75 Og 122 ~ FIGURE 2. RELIEF... the area 120 90 122 o 124o LUZON P H ILt P PINES 18o / / I I I I I 100 / / 90 Baguio 80 GO Aparri rag LLi C3 O 16 Cabanatuan o LI Q 1 Go Olor a po 80 MANILA 40 14o S. Pablo 4o 'Q Naga ga&pua FIGIJRE 5. COEFFICIENT...

Coligado, Mauro Comendador

1967-01-01T23:59:59.000Z

325

Vertical profiles of radar reflectivity of convective cells in tropical and mid-latitude mesoscale convective systems  

E-Print Network [OSTI]

of tropical oceanic and tropical continental MCSs during the monsoon wet seasons of 1987/1988 and 1988/1989. The atmospheric structure, particularly the CAPE and low level vertical wind shear for all the MCS events studied is analyzed to help... lectivity, at a height of 1. 9 km, of the 68 72 2 December 1988 tropical monsoon case at 0542 LT . . 74 36 37 38 As in Fig. 35, except at 0609 LT Time series of zonal wind and CAPE at Darwin during the 1988/1989 monsoon wet season. Contour plot...

Lutz, Kurt Reed

2012-06-07T23:59:59.000Z

326

Section 61  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Improved Treatment of Surface Evapotranspiration Improved Treatment of Surface Evapotranspiration in a Mesoscale Numerical Model C-R Chen and P. J. Lamb Cooperative Institute for Mesoscale Meteorological Studies and School of Meteorology The University of Oklahoma Norman, Oklahoma Surface evapotranspiration can affect the formation processes overestimated or underestimated by the PM method is mainly of low-level clouds and even precipitation. Accordingly, in controlled by the setting of stomatal resistance. Less surface daily short- and medium-range forecast applications, an evapotranspirative cooling, as implied by the PM method, led inappropriate representation of evapotranspiration leads to to a warmer skin temperature and, thus, a stronger estimation errors in cloud predictions and precipitation forecasts. A

327

Attraction of Meso-Scale Objects on the Surface of a Thin Elastic Film Supported on a Liquid  

E-Print Network [OSTI]

We study the interaction of two parallel rigid cylinders on the surface of a thin elastic film supported on a pool of liquid. The excess energy of the surface due to the curvature of the stretched film induces attraction of the cylinders that can be quantified by the variation of their gravitational potential energies as they descend into the liquid while still floating on the film. Although the experimental results follow the trend predicted from the balance of the gravitational and elastic energies of the system, they are somewhat underestimated. The origin of this discrepancy is the hysteresis of adhesion between the cylinder and the elastic film that does not allow the conversion of the total available energy into gravitational potential energy as some part of it is recovered in stretching the film behind the cylinders while they approach each other. A modification of the model accounting for the effects of adhesion hysteresis improves the agreement between theoretical and experimental results. The contribution of the adhesion hysteresis can be reduced considerably by introducing a thin hydrogel layer atop the elastic film that enhances the range of attraction of the cylinders (as well as rigid spheres) in a dramatic way. Morphological instabilities in the gel project corrugated paths to the motion of small spheres, thus leading to a large numbers of particles to aggregate along their defects. These observations suggest that a thin hydrogel layer supported on a deformable elastic film affords an effective model system to study elasticity and defects mediated interaction of particles on its surface.

Aditi Chakrabarti; Manoj K. Chaudhury

2014-08-07T23:59:59.000Z

328

VOL. 129, NO. 8 AUGUST 2001M O N T H L Y W E A T H E R R E V I E W 2001 American Meteorological Society 1757  

E-Print Network [OSTI]

Society 1757 Scale Interactions Involved in the Initiation, Structure, and Evolution of the 15 December and generated an anticyclonic circulation. This anticyclonic circulation was enhanced during the development interactions (i.e., from synoptic scale to mesoscale and convective scale) are scrutinized using both

Protat, Alain

329

Impacts of Large-scale Surface Modifications on Meteorological Conditions and Energy Use: A 10-Region Modeling Study  

E-Print Network [OSTI]

J. , 1997a: Peak power and cooling energy savings of high-J. , 1997b: Peak power and cooling energy savings of shade

Taha, H.

2011-01-01T23:59:59.000Z

330

Data Report: Meteorological and Evapotranspiration Data from Sagebrush and Pinyon Pine/Juniper Communities at Pahute Mesa, Nevada National Security Site, 2011-2012  

SciTech Connect (OSTI)

Pahute Mesa is a groundwater recharge area at the Nevada National Security Site. Because underground nuclear testing was conducted at Pahute Mesa, groundwater recharge may transport radionuclides from underground test sites downward to the water table; the amount of groundwater recharge is also an important component of contaminant transport models. To estimate the amount of groundwater recharge at Pahute Mesa, an INFIL3.0 recharge-runoff model is being developed. Two eddy covariance (EC) stations were installed on Pahute Mesa to estimate evapotranspiration (ET) to support the groundwater recharge modeling project. This data report describes the methods that were used to estimate ET and collect meteorological data. Evapotranspiration was estimated for two predominant plant communities on Pahute Mesa; one site was located in a sagebrush plant community, the other site in a pinyon pine/juniper community. Annual ET was estimated to be 31013.9 mm for the sagebrush site and 34715.9 mm for the pinyon pine/juniper site (March 26, 2011 to March 26, 2012). Annual precipitation measured with unheated tipping bucket rain gauges was 179 mm at the sagebrush site and 159 mm at the pinyon pine/juniper site. Annual precipitation measured with bulk precipitation gauges was 222 mm at the sagebrush site and 227 mm at the pinyon pine/juniper site (March 21, 2011 to March 28, 2012). A comparison of tipping bucket versus bulk precipitation data showed that total precipitation measured by the tipping bucket rain gauges was 17 to 20 percent lower than the bulk precipitation gauges. These differences were most likely the result of the unheated tipping bucket precipitation gauges not measuring frozen precipitation as accurately as the bulk precipitation gauges. In this one-year study, ET exceeded precipitation at both study sites because estimates of ET included precipitation that fell during the winter of 2010-2011 prior to EC instrumentation and the precipitation gauges started collecting data in March 2011.

Jasoni, Richard L [DRI; Larsen, Jessica D [DRI; Lyles, Brad F. [DRI; Healey, John M [DRI; Cooper, Clay A [DRI; Hershey, Ronald L [DRI; Lefebre, Karen J [DRI

2013-04-01T23:59:59.000Z

331

JULY 1998 1389K O W A L I K A N D P O L Y A K O V 1998 American Meteorological Society  

E-Print Network [OSTI]

and at a few smaller locations. The major energy sink for diurnal tides (over 60% of the total energy) is Shelikhov Bay and Penzhinskaya Guba. The major portion of semidiurnal tide energy is dissipatedJULY 1998 1389K O W A L I K A N D P O L Y A K O V 1998 American Meteorological Society Tides

Kowalik, Zygmunt

332

VARIABILITY, PREDICTABILITY AND CLIMATE RISKS Heinz Wanner, professor of climatology and meteorology, is the director of the NCCR Climate. The network of Swiss climate research  

E-Print Network [OSTI]

and was an assistant project leader while doing a post-doc within the framework of the NCCR Climate. She went#12;1 -- VARIABILITY, PREDICTABILITY AND CLIMATE RISKS -- #12;3 -- WHO WE ARE -- Heinz Wanner, professor of climatology and meteorology, is the director of the NCCR Climate. The network of Swiss climate

Richner, Heinz

333

1088 VOLUME 15J O U R N A L O F C L I M A T E 2002 American Meteorological Society  

E-Print Network [OSTI]

1088 VOLUME 15J O U R N A L O F C L I M A T E 2002 American Meteorological Society NOTES instability: the latter predominantly generates the seasonal phase locking of ENSO but has little effect periodic forcing, such as the annual cycle of solar insolation or monsoon wind. Using a conceptual ENSO

Wisconsin at Madison, University of

334

656 VOLUME 14J O U R N A L O F C L I M A T E 2001 American Meteorological Society  

E-Print Network [OSTI]

oscillatory ocean-only mode. The insulating capacity of the variable sea ice has a negligible effect656 VOLUME 14J O U R N A L O F C L I M A T E 2001 American Meteorological Society The Role of Ice The simulated influence of Arctic sea ice on the variability of the North Atlantic climate is discussed

335

VOLUME 12 APRIL 1999J O U R N A L O F C L I M A T E 1999 American Meteorological Society 917  

E-Print Network [OSTI]

VOLUME 12 APRIL 1999J O U R N A L O F C L I M A T E 1999 American Meteorological Society 917 Remote the solar radiation absorbed by the ocean, thereby leading to enhanced SSTs. In the tropical North Atlantic. These relationships fit the concept of an ``atmospheric bridge'' that connects SST anomalies in the central equatorial

336

1 JULY 2000 2261Z H A N G A N D M C P H A D E N 2000 American Meteorological Society  

E-Print Network [OSTI]

1 JULY 2000 2261Z H A N G A N D M C P H A D E N 2000 American Meteorological Society Intraseasonal in solar radiation flux and net buoyancy flux. The phase of net buoyancy flux is determined by the net heat intraseasonal Kelvin waves propagate eastward from the western Pacific into the central and eastern Pacific

Zhang, Chidong

337

15 JUNE 2003 1967L ' E C U Y E R A N D S T E P H E N S 2003 American Meteorological Society  

E-Print Network [OSTI]

15 JUNE 2003 1967L ' E C U Y E R A N D S T E P H E N S 2003 American Meteorological Society, and space--enhancing reflection of solar radiation to space, trapping thermal emission from the surface. Central to this issue is the role of the hydrological cycle governing the exchange of water between

Stephens, Graeme L.

338

872 VOLUME 14J O U R N A L O F C L I M A T E 2001 American Meteorological Society  

E-Print Network [OSTI]

872 VOLUME 14J O U R N A L O F C L I M A T E 2001 American Meteorological Society. These spectra resemble those found for tree-ring-based precipitation reconstructions in central China as well as the western United States, and may reflect solar influences on the climate of Mongolia. 1. Introduction

Pederson, Neil

339

Quaternary International 9596 (2002) 113124 Meteorological perspective on the initiation of the  

E-Print Network [OSTI]

. Mass balance calculations using NNR demonstrate that a perennial snowfield is possible in the study

Howat, Ian M.

340

Development and application of WRF3.3-CLM4crop to study of agriculture - climate interaction  

E-Print Network [OSTI]

plant growth and development on interannaul variability in mesoscale atmospheric simulations, Proceedings of the 10th (2000) International Offshore and

Lu, Yaqiong

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

6, 1296712999, 2006 The T1-T2 study  

E-Print Network [OSTI]

and radiosonde systems helped to characterize the meteorology and to identify periods when transport from Mexico to be more affected by transport from Mexico City. Specific absorption during transport periods was lower Discussions The T1-T2 study: evolution of aerosol properties downwind of Mexico City J. C. Doran 1 , W. P

Boyer, Edmond

342

JUNE 1997 1251K N O X 1997 American Meteorological Society  

E-Print Network [OSTI]

obvious the fact that CAT remains a safety hazard to commercial aviation today (Phillips 1995). Early. John A. Knox, Columbia Uni- versity and NASA/Goddard Institute for Space Studies, Armstrong Hall, 2880

343

Statistical analysis of aerosol species, trace gasses, and meteorology in Chicago  

E-Print Network [OSTI]

possible pollutant sources. Keywords Atmospheric aerosols . Canonical correlation analysis . Chicago air pollution studies involve collection and anal- ysis of atmospheric aerosols and concurrent meteorol- ogy) and principal component analysis (PCA) were applied to atmospheric aerosol and trace gas concentrations

O'Brien, Timothy E.

344

Solar Resource & Meteorological Assessment Project (SOLRMAP): Southwest Solar Research Park (Formerly SolarCAT) Rotating Shadowband Radiometer (RSR); Phoenix, Arizona (Data)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The U.S. Department of Energy's National Renewable Energy Laboratory collaborates with the solar industry to establish high quality solar and meteorological measurements. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

Wilcox, S.; Andreas, A.

345

Implementing Best Practices for Data Quality Assessment of the National Renewable Energy Laboratory's Solar Resource and Meteorological Assessment Project  

SciTech Connect (OSTI)

Effective solar radiation measurements for research and economic analyses require a strict protocol for maintenance, calibration, and documentation to minimize station down-time and data corruption. The National Renewable Energy Laboratory's Concentrating Solar Power: Best Practices Handbook for the Collection and Use of Solar Resource Data (1) includes guidelines for operating a solar measure-ment station. This paper describes a suite of automated and semi-automated routines based on the best practices hand-book as developed for the National Renewable Energy La-boratory Solar Resource and Meteorological Assessment Project. These routines allow efficient inspection and data flagging to alert operators of conditions that require imme-diate attention. Although the handbook is targeted for con-centrating solar power applications, the quality-assessment procedures described are generic and should benefit many solar measurement applications. The routines use data in one-minute measurement resolution, as suggested by the handbook, but they could be modified for other time scales.

Wilcox, S. M.; McCormack, P.

2011-01-01T23:59:59.000Z

346

Predicting Residential Air Exchange Rates from Questionnaires and Meteorology: Model Evaluation in Central North Carolina  

Science Journals Connector (OSTI)

The capability of the LBL, LBLX, and SF models could help reduce the AER uncertainty in air pollution exposure models used to develop exposure metrics for health studies. ... The parameters for the low-income homes were estimated using measurements from the Ohio Weatherization Program, which included residences with household incomes below 125% of the poverty guideline (14). ...

Michael S. Breen; Miyuki Breen; Ronald W. Williams; Bradley D. Schultz

2010-11-11T23:59:59.000Z

347

Slide 1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Southern Great Plains Atmospheric Southern Great Plains Atmospheric Moisture Budget for CLASIC Peter J. Lamb 1,2 , Avraham Zangvil 3 , Diane H. Portis 1 1 1 Cooperative Institute for Mesoscale Meteorological Studies The University of Oklahoma 2 School of Meteorology, The University of Oklahoma 3 Meteorology Unit, Blaustein Institute for Desert Research, Ben Gurion University of the Negev, Israel ARM Science Team Meeting March 2009 CLASIC CLOUD AND LAND SURFACE INTERACTION CAMPAIGN Southern Great Plains Site ARM Climate Research Facility (ACRF) June 9-30 2007 CLASIC Science Questions (1) What are the roles of cumulus convection and spatial variations in land cover in depleting low-level water vapor as it is advected into the SGP region? (2) What are the relationships between cumulus clouds and the soil-plant-atmosphere

348

A laboratory study of selected large hailstones  

E-Print Network [OSTI]

). More recently, Changnon ( 1972) has estimated the monetary loss to the United States each year and found it to exceed 315 million dollars (based on 1968 prices). Thus, the formation and growth of hail constitutes an element of meteorological study... the front contr ibuted si gnif- icantly to the late afternoon and evening development of thunder storms. In addition, the large scale circulations around the Bermuda high, with its extension into the southeastern United States and the Gulf of Mexico...

Marrs, John Thomas

1979-01-01T23:59:59.000Z

349

Economic evaluation of a residential photovoltaic system based on a probability model using actual meteorological data  

SciTech Connect (OSTI)

To design a photovoltaic (PV) generation system economically, it is necessary to use date of the total insolation on a horizontal surface. However, such data is only the total daily values and does not represent the power variation caused by the cloud cover. This paper presents the probability method which represents not only the average but also the variance of the PV generation power, and shows simulated results using this methodology. This study's results indicate that the distribution of the PV power divided by the estimated value of the total insolation on a tilted surface is similar to a normal distribution and that a residential (privately-owned) system without storage, whose PV capacity is more than 2 kWp, has little effect upon the reduction of the energy of an average Japanese household.

Sutoh, T.; Suzuki, H.; Sekine, Y.

1987-03-01T23:59:59.000Z

350

Numerical Simulations of the 1994 Piedmont Flood: Role of Orography and Moist Processes  

Science Journals Connector (OSTI)

The intense precipitation event that occurred between 3 and 6 November 1994 and caused extensive flooding over Piedmont in northwestern Italy is simulated and tested with respect to various physical aspects, using a meteorological mesoscale model ...

Andrea Buzzi; Nazario Tartaglione; Piero Malguzzi

1998-09-01T23:59:59.000Z

351

Matthew David Parker Department of Marine, Earth, and Atmospheric Sciences Curriculum Vitae  

E-Print Network [OSTI]

EDUCATION ________________________________________________________________________ Colorado State University, Fort Collins, Colorado 2002 Ph.D., Atmospheric science (Mesoscale meteorology) 1999 M.S., Atmospheric. Parker, and J. J. Charney, in press: Regimes of dry convection above wildfires: Sensitivity to fireline

Parker, Matthew D. Brown

352

5, 47014738, 2005 The importance of  

E-Print Network [OSTI]

ACPD 5, 4701­4738, 2005 The importance of mesoscale to forecast air pollution J. L. Palau et al and Physics Discussions The importance of meteorological scales to forecast air pollution scenarios. 4701 #12;ACPD 5, 4701­4738, 2005 The importance of mesoscale to forecast air pollution J. L. Palau et

Boyer, Edmond

353

Regional-Scale Estimation of Electric Power and Power Plant CO2 Emissions Using Defense Meteorological Satellite Program Operational Linescan System Nighttime Satellite Data  

Science Journals Connector (OSTI)

For estimation, the relationship between Defense Meteorological Satellite Program Operational Linescan System (DMSP/OLS) annual nighttime stable light product (NSL) for 2006 and statistical data on power generation, power consumption, and power plant CO2 emissions in 10 electric power supply regions of Japan was investigated. ... There are similar linear correlations of electricity consumption for lighting and total electricity consumption at the regional (e.g., state and province) level, but possibly not for CO2 emissions because of regional concentrations of electricity from renewable energy and nuclear power plants, which produce low CO2 emissions. ...

Husi Letu; Takashi Y. Nakajima; Fumihiko Nishio

2014-04-24T23:59:59.000Z

354

METEOROLOGICAL Journal of Climate  

E-Print Network [OSTI]

ocean projections. Mk3.5 captures a number of robust changes common to most climate models that contribute to the Coupled Model Intercomparison Project (CMIP3), an initiative by the World Climate Research projected by climate models. However, the response of these currents to climate change may directly affect m

Feng, Ming

355

METEOROLOGICAL Journal of Climate  

E-Print Network [OSTI]

for Coastal Research, GKSS Research Centre, Geesthacht, Germany y CREST, City College of New York, NY, USA z

Siebesma, Pier

356

METEOROLOGY IN CALIFORNIA  

Science Journals Connector (OSTI)

...scientific journals and local health or engineering...a hot and dry wind, usually confined...wind with the Foehn of Switzerland...temperature of 640. The winds show two diurnal maxima, indicating local control of their flow, a west wind from the Warner...Winds of the Foehn species commonly...

W. M. D.

1886-12-31T23:59:59.000Z

357

CURRENT NOTES ON METEOROLOGY  

Science Journals Connector (OSTI)

...warmth of the chinook winds is entirely erroneous...the warmth of the Swiss foehn, viz, that that wind, coming down warm and...dry-ness of chinook and foehn are the result of the...condensed reports upon local climates were available...

R. DEC. WARD

1900-06-15T23:59:59.000Z

358

CURRENT NOTES ON METEOROLOGY  

Science Journals Connector (OSTI)

...Weather Forecasts by Local Ob-servers,' 'Polarization...temperature, pressure, winds, rain-fall and cloudiness...special attention to the winds noted during the Gauss...the continent. Here the winds were found to be prevailingly...sea-board as easterly, foehn-like gales.' These...

R. DEC. WARD

1904-08-05T23:59:59.000Z

359

A Sensitivity Study of Building Performance Using 30-Year Actual Weather  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sensitivity Study of Building Performance Using 30-Year Actual Weather Sensitivity Study of Building Performance Using 30-Year Actual Weather Data Title A Sensitivity Study of Building Performance Using 30-Year Actual Weather Data Publication Type Conference Paper Year of Publication 2013 Authors Hong, Tianzhen, Wen-Kuei Chang, and Hung-Wen Lin Date Published 05/2013 Keywords Actual meteorological year, Building simulation, Energy use, Peak electricity demand, Typical meteorological year, Weather data Abstract Traditional energy performance calculated using building simulation with the typical meteorological year (TMY) weather data represents the energy performance in a typical year but not necessarily the average or typical energy performance of a building in long term. Furthermore, the simulated results do not provide the range of variations due to the change of weather, which is important in building energy management and risk assessment of energy efficiency investment. This study analyzes the weather impact on peak electric demand and energy use by building simulation using 30-year actual meteorological year (AMY) weather data for three types of office buildings at two design efficiency levels across all 17 climate zones. The simulated results from the AMY are compared to those from TMY3 to determine and analyze the differences. It was found that yearly weather variation has significant impact on building performance especially peak electric demand. Energy savings of building technologies should be evaluated using simulations with multi-decade actual weather data to fully consider investment risk and the long term performance.

360

1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the Cloud Droplet Effective Radius Profile the Cloud Droplet Effective Radius Profile in Stratiform Clouds M. Ovtchinnikov and Y. L. Kogan Cooperative Institute for Mesoscale Meteorological Studies Norman, Oklahoma Introduction The droplet effective radius r e defined as ( ) ( ) ∫ ∫ = dr r n r dr r n r r 2 3 e , (1) where n(r) is the droplet size distribution (DSD). r e is an important parameter in cloud-radiation parameterizations in mesoscale and general circulation models. Although it is recognized that the vertical variations of r e may significantly affect outcome of such parameterizations, an assumption of constant r e is commonly used in today's models. This simplification is caused in part by the limited data available on the r e -height dependence obtained primarily from expensive aircraft sampling of a relatively

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

X:\ARM_19~1\P273-281.WPD  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

RH RH c ) RH c RH c RH c Session Papers 273 Evaluation of Cloud Prediction and Determination of Critical Relative Humidity for a Mesoscale Numerical Weather Prediction Model N. L. Seaman, Z. Guo, and T. P. Ackerman Pennsylvania State University, Department of Meteorology University Park, Pennsylvania Predictions of cloud occurrence and vertical location from the Pennsylvania State University/National Center for Atmospheric Research nonhydrostatic mesoscale model (MM5) were evaluated statistically using cloud observations obtained at Coffeyville, Kansas, as part of the Second International Satellite Cloud Climatology Project Regional Experiment campaign. Seventeen cases were selected for simulation during a November-December 1991 field study. MM5 was used to produce two sets of

362

Section 16a  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

9 9 Data Assimilation for the June 1993 Intensive Observation Period at the Southern Great Plains Site J. Dudhia Mesoscale and Microscale Meteorology Division National Center for Atmospheric Research Boulder, Colorado Introduction An Intensive Observation Period (IOP) of the Atmospheric Radiation Measurement (ARM) Program took place at the Southern Great Plains Cloud and Radiation Testbed (CART) site from June 16-26, 1993. The National Center for Atmospheric Research (NCAR)/Penn State Mesoscale Model (MM5) has been used to simulate this The model features and options used in this study are as fol- period on a 60-km domain with 20- and 6.67-km nests lows. Equations are for nonhydrostatic, compressible motion centered on Lamont, OK. Simulations are being run with data

363

Section 70  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Figure 1. Regions where low-level jets are known or Figure 1. Regions where low-level jets are known or suspected to occur with some regularity (shaded), and where mesoscale convective complexes are known to occur frequently during the summer (open boxes). Squares denote locations where low-level jets have been observed. Summertime Low-Level Jets Over the Great Plains D.J. Stensrud National Oceanic and Atmospheric Administration/Environmental Research Laboratories National Severe Storms Laboratory Norman, Oklahoma D.V. Mitchell National Oceanic and Atmospheric Administration/Environmental Research Laboratories National Severe Storms Laboratory and Cooperative Institute for Mesoscale Meteorological Studies Norman, Oklahoma S. Pfeifer University of Oklahoma Norman, Oklahoma Introduction A low-level jet (LLJ) is a wind speed maximum that occurs in

364

ovtchinnikov-98.pdf  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

51 51 Cloud Remote Sensing Using ARM Instruments: Observations and Modeling M. Ovtchinnikov and Y. L. Kogan Cooperative Institute for Mesoscale Meteorological Studies Norman, Oklahoma Introduction The constantly expanding Atmospheric Radiation Measure- ment (ARM) instrumental base for observing clouds now consists of about a dozen instruments including ceilometers, lidars, and a cloud radar. The majority of these instruments provides indirect measurements and requires a use of retrieval algorithms to deduce cloud properties needed for developing and testing cloud parameterizations for general circulation models (GCMs). In situ aircraft measurements during intensive observation periods (IOPs) are intended to provide ground truth for testing these retrieval procedures.

365

1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Daytime Overlapping Cloud Detection in MODIS Data Daytime Overlapping Cloud Detection in MODIS Data B. A. Baum National Aeronautics and Space Administration Langley Research Center Hampton, Virginia S. L. Nasiri Cooperative Institute for Mesoscale Meteorological Satellite Studies University of Wisconsin-Madison Madison, Wisconsin P. Yang Science Systems and Applications, Inc. Greenbelt, Maryland Introduction Current efforts to derive a global cloud climatology from satellite data generally suffer in situations involving multilayered clouds. In fact, cloud properties are inferred for each imager pixel assuming only one cloud layer is present. Currently available satellite cloud climatologies provide a horizontal distribution of clouds, but need improvement in the description of the vertical distribution of clouds.

366

splitt(1)-99.PDF  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Detection of SIRS Solar Tracking Problems with Detection of SIRS Solar Tracking Problems with Automated Algorithms M. E. Splitt University of Utah Salt Lake City, Utah C. P. Bahrmann Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction Algorithms for assessing Solar Infrared Station (SIRS) broadband solar radiation data quality have been developed to aid automated flagging of the SIRS data streams. Many solar tracking anomalies can be detected by the standard three component comparison technique ("direct" + "diffuse" versus "hemispheric"). This comparison, though, will not be effective during conditions when the solar tracker completely unshades the "shaded" pyranometer and points the pyrheliometer completely off of the solar

367

peppler-98.pdf  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

7 7 ARM Fall 1997 Integrated IOP - A Look Back R. A. Peppler Cooperative Institute of Mesoscale Meteorological Studies (CIMMS) University of Oklahoma Norman, Oklahoma D. L. Sisterson Argonne National Laboratory Argonne, Illinois J. Teske ERC, Incorporated Billings, Oklahoma Introduction The Atmospheric Radiation Measurement (ARM) Program's largest intensive observation period (IOP) to date was conducted from September 15 to October 5, 1997, at and near the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) Central Facility. The Integrated IOP consisted of six separate but interrelated experimental efforts, including water vapor, clouds, aerosols, shortwave radiation, the Unmanned Aerospace Vehicle (UAV), and Single-Column Model (SCM). This paper briefly describes

368

Associations of Meteorology with Adverse Pregnancy Outcomes: A Systematic Review of Preeclampsia, Preterm Birth and Birth Weight  

E-Print Network [OSTI]

method size All birth certificates Linear regressionbased cohort study All birth certificates Linear regressionbirth November and distribution of the study certificates

Beltran, Alyssa; Wu, Jun; Laurent, Olivier

2013-01-01T23:59:59.000Z

369

1462 VOLUME 54J O U R N A L O F T H E A T M O S P H E R I C S C I E N C E S 1997 American Meteorological Society  

E-Print Network [OSTI]

,* AND LIGUANG WU Department of Meteorology, School of Ocean and Earth Science and Technology, University experiments with a single-layer, primitive equation model. It is found that cyclonic (anticyclonic) shears of the beta gyre amplitude and phase angle is advanced to interpret the numerical model results. In this model

Wang, Bin

370

VOLUME 27 JULY 1997J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y 1997 American Meteorological Society 1181  

E-Print Network [OSTI]

Meteorological Society 1181 Sediment Resuspension and Mixing by Resonantly Generated Internal Solitary Waves D 1991). This situation reinforces the importance of resuspension and mixing processes at the present and a strong concurrent increase in suspended particulate matter in the water column. Sed- iment resuspension

Fabrikant, Sara Irina

371

1462 VOLUME 33J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y 2003 American Meteorological Society  

E-Print Network [OSTI]

be thought of as a steepening of the leading edge of the internal tide. Turbulent energy dissipation may Meteorological Society Shear and Baroclinic Energy Flux on the Summer New England Shelf J. A. MACKINNON* AND M. C are presented of internal wave properties and energy fluxes through a site near the 70-m isobath on the New

MacKinnon, Jennifer

372

2312 VOLUME 32J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y 2002 American Meteorological Society  

E-Print Network [OSTI]

were selected for the analysis. Highly resolved spectra of salinity gradient exhibit an approximate k 1 Meteorological Society Microstructure Estimates of Turbulent Salinity Flux and the Dissipation Spectrum of Salinity JONATHAN D. NASH* AND JAMES N. MOUM College of Oceanic and Atmospheric Sciences, Oregon State

Kurapov, Alexander

373

1094 VOLUME 32J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y 2002 American Meteorological Society  

E-Print Network [OSTI]

Meteorological Society NOTES AND CORRESPONDENCE Midlatitude Wind Forcing and Subduction of Temperature Anomalies may also be generated by remote wind-forcing effects, through their impact on the position of the LPVP response to localized anomalous surface wind and buoyancy forcings. Wind stress and surface cooling

Wisconsin at Madison, University of

374

642 VOLUME 56J O U R N A L O F T H E A T M O S P H E R I C S C I E N C E S 1999 American Meteorological Society  

E-Print Network [OSTI]

a priori. The first numerical simulations of the coupled hur- ricane­ocean system were performed with axisymmetric hurricane and ocean models neglecting the hurricane movement. Very limited computer power dictated Meteorological Society The Ocean's Effect on the Intensity of Tropical Cyclones: Results from a Simple Coupled

Emanuel, Kerry A.

375

Implementing Best Practices for Data Quality Assessment of the National Renewable Energy Laboratory?s Solar Resource and Meteorological Assessment Project: Preprint  

SciTech Connect (OSTI)

Effective solar radiation measurements for research and economic analyses require a strict protocol for maintenance, calibration, and documentation to minimize station downtime and data corruption. The National Renewable Energy Laboratory's Concentrating Solar Power: Best Practices Handbook for the Collection and Use of Solar Resource Data includes guidelines for operating a solar measurement station. This paper describes a suite of automated and semi-automated routines based on the best practices handbook as developed for the National Renewable Energy Laboratory Solar Resource and Meteorological Assessment Project. These routines allow efficient inspection and data flagging to alert operators of conditions that require immediate attention. Although the handbook is targeted for concentrating solar power applications, the quality-assessment procedures described are generic and should benefit many solar measurement applications. The routines use data in one-minute measurement resolution, as suggested by the handbook, but they could be modified for other time scales.

Wilcox, S. M.; McCormack, P.

2011-04-01T23:59:59.000Z

376

Air Quality Scoping Study for Beatty, Nevada (EMSI April 2007)  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energys Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at seven sites outside the NTS, including Ash Meadows National Wildlife Refuge, Sarcobatus Flat, Beatty, Rachel, Caliente, Pahranagat National Wildlife Refuge, and Crater Flat, and at four sites on the NTS. The trailer is stationed at any one site for approximately eight weeks at a time. Letter reports provide summaries of air quality and meteorological data, on completion of each sites sampling program.

Johann Engelbrecht, Ilias Kavouras, Dave Campbell, Scott Campbell, Steven Kohl and David Shafer

2007-04-01T23:59:59.000Z

377

Air Quality Scoping Study for Rachel, Nevada (EMSI April 2007)  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energys Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at seven sites outside the NTS, including Ash Meadows National Wildlife Refuge, Sarcobatus Flat, Beatty, Rachel, Caliente, Pahranagat National Wildlife Refuge, and Crater Flat, and at four sites on the NTS. The trailer is stationed at any one site for approximately eight weeks at a time. Letter reports provide summaries of air quality and meteorological data, on completion of each sites sampling program.

Johann Engelbrecht, Ilias Kavouras, Dave Campbell, Scott Campbell, Steven Kohl and David Shafer

2007-04-01T23:59:59.000Z

378

1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Background Climatology for the Atmospheric Background Climatology for the Atmospheric Radiation Measurement Program Mobile Facility Deployment in Niamey: Mean Annual Cycle and 2004-2005 Interannual Variability P.J. Lamb and M. Issa Lélé Cooperative Institute for Mesoscale Meteorological Studies The University of Oklahoma Norman, Oklahoma Abstract This study is comprised of two parts. The first part provides the long-term mean annual cycle context for the deployment of Atmospheric Radiation Measurement (ARM) Mobile Facility (AMF) in Niamey, Niger, Africa, during the entire year of 2006. Documentation includes the annual cycles (calendar month basis) of the following surface meteorological variables that will be important for the ARM deployment-rainfall, visibility (proxy for atmospheric dust), vapor pressure (proxy for column

379

1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Toward a Diurnal Climatology of Cold-Season Turbulence Toward a Diurnal Climatology of Cold-Season Turbulence Statistics in Continental Stratocumulus as Observed by the Atmospheric Radiation Measurement Millimeter- Wavelength Cloud Radars D.B. Mechem and Y.L. Kogan Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma M.E. Childers and K.M. Donner School of Meteorology University of Oklahoma Norman, Oklahoma Introduction Numerous observational studies of marine stratocumulus have demonstrated a pronounced diurnal cycle. At night, longwave flux divergence at the top of the cloud drives negatively buoyant eddies that tend to keep the boundary layer well mixed. During the day, solar absorption by the cloud tends to reduce the turbulent intensity and often decouples the planetary boundary layer (PBL) into cloud- and sub-cloud

380

Technical Sessions Parameterization of Convective Clouds, Mesoscale...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Convective-Generated Clouds W. R. Cotton Department of Atmospheric Science Colorado State University Fort Collins, CO 80523 This presentation is a summary of research...

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Coastal mesoscale changes on Matagorda Island  

E-Print Network [OSTI]

on the coastal geomorphology of Matagorda Island. Based on the statistical and morphometric analysis of the coastal landforms, the island was divided into three distinct sub-environments: an erosional eastern zone, a transitional mixed zone, and a depositional...

Lariscy, Kevin William

2001-01-01T23:59:59.000Z

382

Mesoscale Coupled Ocean-Atmosphere Interaction  

E-Print Network [OSTI]

heat flux, and wind power input to the ocean. Geophys. Res.Powers and Stoelinga (2000). They developed a comprehensive atmosphere-ocean-

Seo, Hyodae

2007-01-01T23:59:59.000Z

383

Mesoscale coupled ocean-atmosphere interaction  

E-Print Network [OSTI]

heat flux, and wind power input to the ocean. Geophys. Res.Powers and Stoelinga (2000). They developed a comprehensive atmosphere-ocean-

Seo, Hyodae

2007-01-01T23:59:59.000Z

384

Community-scale assessment of rooftop-mounted solar energy potential with meteorological, atlas, and GIS data: a case study of Guelph, Ontario (Canada)  

Science Journals Connector (OSTI)

Forward-thinking governments recognize that local renewable resource use is crucial to the resilience of communities and are developing and implementing community energy plans (CEPs). Guelph, Ontario, (Canada) in...

Joseph H McIntyre

2012-11-01T23:59:59.000Z

385

ARM_STM_07_poster.ppt  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Precipitation Measurements in Oklahoma Using Precipitation Measurements in Oklahoma Using In-Situ and Remote Sensing Instrumentation Phillip B. Chilson 1 , Guifu Zhang 1 , Terry Schuur 2 , Alexander Ryzhkov 2 , Laura Kanofsky 2 , Qing Cao 2 , and Matt Van Every 2 (1) School of Meteorology & (2) Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma, Norman, OK Kessler Farm Field Laboratory Introduction Understanding the microphysics of precipitation and the atmosphere in which it forms and evolves is important to accurately estimate rainfall rates and improve parameterizations in models that predict the weather. Therefore, the University of Oklahoma (OU) in collaboration with NOAA's National Severe Storms Laboratory (NSSL) is building up a suite of instrumentation to measure the properties of

386

Section 56  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.5° 0.5° C 0° C Session Papers 237 Enhancement of Atmospheric Radiation Measurement Surface Meteorological Observations During the Fall 1996 Water Vapor Intensive Observation Period S. J. Richardson and M. E. Splitt Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Abstract This work describes in situ moisture sensor comparisons performed in conjunction with the first Water Vapor (WV) Intensive Observation Period (IOP) conducted at the Atmos- pheric Radiation Measurement (ARM) Program Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) site during September of 1996. Numerous remote sensing instruments (e.g., two Raman Lidar, two Atmospheric Emitted Radiance Interferometers [AERI], and a suite of 13 microwave radiometers) were assembled at the CART site

387

TWP Island Cloud Trail Studies  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Pacific Island Cloud Trail Studies Pacific Island Cloud Trail Studies W. M. Porch Los Alamos National Laboratory Los Alamos, New Mexico S. Winiecki University of Chicago Chicago, Illinois Introduction Images and surface temperature measurements from the U.S. Department of Energy (DOE) Multi- spectral Thermal Imaging (MTI) satellite are combined with geostationary meteorological satellite (GMS) images during 2000 and 2001 to better understand cloud trail formation characteristics from the Atmospheric Radiation Measurement (ARM) Tropical Western Pacific (TWP) site. Figure 1 shows a comparison on two consecutive days in December 2000. The day for which a cloud trail developed was more moist and cooler at the altitude the cloud developed (about 600 m) and there was very little

388

Studying Altocumulus with Ice Virga Using Ground-Based Active and Passive Remote Sensors  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Studying Altocumulus with Ice Virga Using Ground-Based Studying Altocumulus with Ice Virga Using Ground-Based Active and Passive Remote Sensors Z. Wang Goddard Earth Science and Technology Center University of Maryland, Baltimore County College Park, Maryland Z. Wang, D. N. Whiteman, and B. B. Demoz Mesoscale Atmospheric Processes Branch National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland K. Sassen Geophysical Institute University of Alaska Fairbanks, Alaska Introduction Clouds not only play crucial roles in regulating the Earth-atmosphere system energy budget, but also the atmospheric hydrological cycle. The impact of a cloud system strongly depends on the cloud microphysical properties and its vertical extent (Stephens et al. 1990). Although clouds can contain only

389

1 FEBRUARY 2003 383S O L O M O N E T A L . 2003 American Meteorological Society  

E-Print Network [OSTI]

of the Pacific basin, both at northern midlatitudes and in the Tropics, are studied. The model's ocean component@cdc.noaa.gov (PDV) and ENSO decadal variability (EDV) are related (Trenberth 1990; Latif et al. 1997; Kleeman and Power 1999). For example, the results of Wang (1995) suggest that concurrent with the 1970s ``climate

Solomon, Amy

390

Fundamental Studies of Charge Migration and Delocalization Relevant to Solar Energy Conversion  

SciTech Connect (OSTI)

This program aimed to understand the molecular-level principles by which complex chemical systems carry out photochemical charge separation, transport, and storage, and how these insights could impact the design of practical solar energy conversion and storage devices. Towards these goals, this program focused on: (1) carrying out fundamental mechanistic and transient dynamical studies of proton-coupled electron-transfer (PCET) reactions; (2) characterizing and interrogating via electron paramagnetic resonance (EPR) spectroscopic methods novel conjugated materials that feature large charge delocalization lengths; and (3) exploring excitation delocalization and migration, as well as polaron transport properties of meso-scale assemblies that are capable of segregating light-harvesting antennae, nanoscale wire-like conduction elements, and distinct oxidizing and reducing environments.

Michael J. Therien

2012-06-01T23:59:59.000Z

391

Air Quality Scoping Study for Sarcobatus Flat, Nevada (EMSI April 2007)  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energys Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at seven sites outside the NTS, including Ash Meadows National Wildlife Refuge, Sarcobatus Flat, Beatty, Rachel, Caliente, Pahranagat National Wildlife Refuge, and Crater Flat, and at four sites on the NTS. The trailer is stationed at any one site for approximately eight weeks at a time. Letter reports provide summaries of air quality and meteorological data, on completion of each sites sampling program.

Johann Engelbrecht, Ilias Kavouras, Dave Campbell, Scott Campbell, Steven Kohl and David Shafer

2007-04-01T23:59:59.000Z

392

Air Quality Scoping Study for Ash Meadows National Wildlife Refuge, Nevada (EMSI April 2007)  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S.Department of Energys Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at seven sites outside the NTS, including Ash Meadows National Wildlife Refuge, Sarcobatus Flat, Beatty, Rachel, Caliente, Pahranagat National Wildlife Refuge, and Crater Flat, and at four sites on the NTS. The trailer is stationed at any one site for approximately eight weeks at a time. Letter reports provide summaries of air quality and meteorological data, on completion of each sites sampling program.

Johann Engelbrecht, Ilias Kavouras, Dave Campbell, Scott Campbell, Steven Kohl and David Shafer

2007-04-01T23:59:59.000Z

393

dudhia-99.PDF  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mesoscale Model Coupled to a Land-Surface Mesoscale Model Coupled to a Land-Surface Model to Simulate Surface Fluxes at High Resolution J. Dudhia Mesoscale and Microscale Meteorology Division National Center for Atmospheric Research Boulder, Colorado F. Chen Research Applications Program National Center for Atmospheric Research Boulder, Colorado Overview One goal of the Atmospheric Radiation Measurement (ARM) Program is to improve general circulation models (GCMs) by obtaining detailed meteorological information in limited areas of order 200 km square and comparing GCM parameterizations with the mean radiative and convective properties in such areas. Typical GCM grid boxes are 100 to 200 km square, but there is in reality much structure at smaller scales that is represented by their parameterizations. Meteorological observations alone cannot

394

NOTES ON METEOROLOGY AND CLIMATOLOGY  

Science Journals Connector (OSTI)

...effective use of heaters involves...the U. S. Weather Bureau...military operations; but it...military operations. As the...ground, cold weather in winter...theater has colder and drier weather in winter...the west, operations there are...

Charles F. Brooks

1916-06-30T23:59:59.000Z

395

TROPICAL METEOROLOGY & Climate | Hadley Circulation  

Science Journals Connector (OSTI)

Synopsis The Hadley circulation, a prominent circulation feature characterized by rising air near the Equator and sinking air in the subtropics, defines the position of dry subtropical areas and is a fundamental regulator of the earth's energy and momentum budgets. The character of the Hadley circulation, and its related precipitation regimes, exhibits variation and change in response to both climate variability and radiative forcing changes. The strength and position of the Hadley circulation change from year to year paced by El Nio and La Nia events. Over the last few decades of the twentieth century, the Hadley cell has expanded poleward in both hemispheres, with changes in atmospheric composition (including stratospheric ozone depletion and greenhouse gas increases) thought to have contributed to its expansion. This article introduces the basic phenomenology and driving mechanism of the Hadley circulation and discusses its variations under both natural and anthropogenic climate forcings. This article is a revision of the previous edition article by I N James, volume 3, pp 919924, 2003, Elsevier Ltd.

J. Lu; G.A. Vecchi

2015-01-01T23:59:59.000Z

396

NOTES ON METEOROLOGY AND CLIMATOLOGY  

Science Journals Connector (OSTI)

...national govern-ment, the local office of the Weather...of sirocco, mistral or foehn, which have an oval shape...Remarks on the General and Local Circulation " was read...solstices. If the theory of local circulation given be correct it fol-lows that the winds must continue upwards...

ANDREW H. PALMER

1911-08-25T23:59:59.000Z

397

Hanford Meteorological Station - Hanford Site  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Station Real Time Met Data from Around the Site Current HMS Observations Daily HMS Extremes in Met Data Met and Climate Data Summary Products Contacts Hours Current NWS...

398

ARM - Field Campaign - Carbonaceous Aerosol and Radiative Effects Study  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

govCampaignsCarbonaceous Aerosol and Radiative Effects Study (CARES) govCampaignsCarbonaceous Aerosol and Radiative Effects Study (CARES) Campaign Links CARES Website Related Campaigns Carbonaceous Aerosol and Radiation Effects Study (CARES) - Surface Meteorological Sounding 2010.05.26, Zaveri, OSC Carbonaceous Aerosol and Radiation Effects Study (CARES) Photo-Acoustic Aerosol Light Absorption and Scattering 2010.05.26, Arnott, OSC Carbonaceous Aerosol and Radiative Effects Study (CARES): SMPS & CCN counter deployment during CARES/Cal-NEx 2010.05.04, Wang, OSC Carbonaceous Aerosol and Radiative Effects Study (CARES) Ground Based Instruments 2010.04.01, Cziczo, OSC Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Carbonaceous Aerosol and Radiative Effects Study (CARES)

399

Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Pahranagat National Wildlife Refuge, Lincoln County, Nevada  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Pahranagat NWR, Beatty, Rachel, Caliente, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data on completion of the site's sampling program.

J. Englebrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

2008-08-01T23:59:59.000Z

400

Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Pahranagat National Wildlife Refuge, Lincoln County, Nevada  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Pahranagat NWR, Beatty, Rachel, Caliente, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data on completion of the site's sampling program.

J. Engelbrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

2009-04-02T23:59:59.000Z

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Tonopah Airport, Nye County, Nevada  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Tonopah Airport, Beatty, Rachel, Caliente, Pahranagat NWR, Crater Flat, and the Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

J. Engelbrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

2009-04-02T23:59:59.000Z

402

Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Tonopah Airport, Nye County, Nevada  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Tonopah Airport, Beatty, Rachel, Caliente, Pahranagat NWR, Crater Flat, and the Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

J. Engelbrecht; I. Kavouras; D Campbell; S. Campbell; S. Kohl, D. Shafer

2008-08-01T23:59:59.000Z

403

Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Caliente, Lincoln County, Nevada  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Beatty, Sarcobatus Flats, Rachel, Caliente, Pahranagat NWR, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

J. Englebrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

2008-08-01T23:59:59.000Z

404

Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Crater Flat, Nye County, Nevada  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) (cover page figure) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Beatty, Sarcobatus Flats, Rachel, Caliente, Pahranagat NWR, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

J. Engelbrecht; I. Kavouras; D. Campbell; S.Campbell; S. Kohl; D. Shafer

2009-04-02T23:59:59.000Z

405

Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Crater Flat, Nye County, Nevada  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) (cover page figure) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Beatty, Sarcobatus Flats, Rachel, Caliente, Pahranagat NWR, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

J. Engelbrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

2008-08-01T23:59:59.000Z

406

Technical Sessions A Study of Longwave Radiation Codes for Climate Studies:  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Study of Longwave Radiation A Study of Longwave Radiation Codes for Climate Studies: Validation with ARM Observations and Tests in General Circulation Models R. G. Ellingson F. Baer Department of Meteorology University of Maryland College Park, MD 20742 Introduction the radiation sensitivity problem. We anticipate that the outcome of this approach will provide both a better longwave radiative forcing algorithm and a better understanding of how longwave radiative forcing influences the equilibrium climate of the atmosphere. Nature of Longwave Problems Longwave radiation quantities-radiances, fluxes and heating rates-are usually calculated in GCM models as the cloud amount weighted average of the values for clear and homogeneous cloud conditions. For example, the downward flux at the surface, F, may be written as

407

2014 GRADUATE STUDIES ENVIRONMENTAL ENGINEERING  

E-Print Network [OSTI]

Meteorology · Air Pollution Physics and Chemistry · Atmospheric Aerosols · Atmospheric Boundary Layer waste engineering; ground water modeling and treatment; air quality monitoring, pollution control with faculty in Earth and Atmospheric Sciences, Biology, Chemistry and Biochemistry, Biomedical Engineering

Wang, Yuhang

408

A Modeling Study of Circulation and Eddies in the Persian Gulf  

Science Journals Connector (OSTI)

The circulation and mesoscale eddies in the Persian Gulf are investigated using results from a high-resolution (?1 km) Hybrid Coordinate Ocean Model (HYCOM). The circulation in the Persian Gulf is composed of two spatial scales: basin scale and ...

Prasad G. Thoppil; Patrick J. Hogan

2010-09-01T23:59:59.000Z

409

Atmospheric studies in complex terrain: a planning guide for future studies  

SciTech Connect (OSTI)

The objective of this study is to assist the US Department of Energy in Conducting its atmospheric studies in complex terrain (ASCOT0 by defining various complex terrain research systems and relating these options to specific landforms sites. This includes: (1) reviewing past meteorological and diffusion research on complex terrain; (2) relating specific terrain-induced airflow phenomena to specific landforms and time and space scales; (3) evaluating the technical difficulty of modeling and measuring terrain-induced airflow phenomena; and (4) avolving severdal research options and proposing candidate sites for continuing and expanding field and modeling work. To evolve research options using variable candidate sites, four areas were considered: site selection, terrain uniqueness and quantification, definition of research problems and research plans. 36 references, 111 figures, 20 tables.

Orgill, M.M.

1981-02-01T23:59:59.000Z

410

An observational study of turbulence in the SPBL  

SciTech Connect (OSTI)

Turbulence in the stable planetary boundary layer (SPBL) is complicated by intermittency, gravity waves, long time scales and meso-scale forcing. Surface features and topography are also important. This study examines turbulence near the top of the SPBL with data taken from a network of 61 m towers. The focus is on the role of moderately complex terrain on turbulent intermittency and spatial variation. The Savannah River Site is {approx}150 km from the Atlantic Ocean and is characterized by rolling forested hills and an average elevation of {approx}80 m ASL. Typical variations in elevation are 50 m (peak to valley) with a horizontal scale of several km. The most important topographic feature is the Savannah River flood plain, which borders the SRS to the southwest. This flood plain is 3-7 km wide with an average elevation of 40 m ASL. Nine 60 meter towers are located on the SRS, generally at higher elevations (81 - 109 m ASL), except for the D tower which is in the Savannah River flood plain (elevation 43 m ASL). The Cl tower differs from the other 8 towers because it collects data at 2, 18, and 36 m as well as 61 m. The TV tower, located 8 km northwest of the SRS, is instrumented at 8 levels from the surface to 300 m.

Kurzeja, R.

1997-09-01T23:59:59.000Z

411

Environmental Engineering GRADUATE STUDIES  

E-Print Network [OSTI]

Formation and Control · Air Pollution Meteorology · Air Pollution Physics and Chemistry · Atmospheric quality monitoring, pollution control and model- ing; environmental sciences; and industrial ecology assessment. COURSES · Advanced Environmental Chemistry · Advanced Topics in Air Pollution · Air Pollution

Wang, Yuhang

412

VOL. 57, NO. 20 15 OCTOBER 2000J O U R N A L O F T H E A T M O S P H E R I C S C I E N C E S 2000 American Meteorological Society 3353  

E-Print Network [OSTI]

American Meteorological Society 3353 Dynamic and Thermodynamic Regulation of Ocean Warming* TIM LI of the annual-mean solar radiation, this model is capable of simulating a realistic annual mean climate.5 C. Long-term records indicate that maximum SST in the warm pool is limited to below 31 C. A central

Wang, Yuqing

413

DOE/NV/26383-LTR2008-01 Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Caliente, Lincoln County, Nevada  

SciTech Connect (OSTI)

The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Beatty, Sarcobatus Flats, Rachel, Caliente, Pahranagat NWR, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

J. Engelbrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

2009-04-02T23:59:59.000Z

414

splitt-98.pdf  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

5 5 Assessment of Large-Scale Advection on Mixing Ratio Profiles Obtained from the C1 BBSS During the Fall 1997 Integrated IOP M. E. Splitt Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction Many studies within atmospheric radiation measurements assume the vertical profiles measured by the C1 [Central Facility(CF)] Balloon Borne Sounding System (BBSS) represent an accurate depiction of the profile at a constant latitude and longitude (i.e., as if the balloon rose directly in the vertical with no horizontal displacement). This assump- tion is probably accurate in many situations, but may be problematic in cases where large horizontal gradients in the atmospheric state occur across the site and in which the

415

University of Minnesota Boosts Studies with Wind Power | Department of  

Broader source: Energy.gov (indexed) [DOE]

Boosts Studies with Wind Power Boosts Studies with Wind Power University of Minnesota Boosts Studies with Wind Power October 27, 2011 - 10:53am Addthis Time-lapse of the University of Minnesota's wind turbine construction, from September 6 - 23, 2011. | Courtesy of the University of Minnesota College of Science and Engineering Eric Escudero Eric Escudero Senior Public Affairs Specialist & Contractor, Golden Field Office What does this project do? The American-made Clipper Liberty wind turbine and a 426-foot tall meteorological tower will allow researchers to work on improving wind turbine efficiency and will help train a new generation of engineers and technicians for careers in the wind industry. President Obama's goal to generate 80 percent of our nation's electricity through clean energy sources by 2035 is ambitious, but

416

Development of a Long-term Climatology of North Atlantic  

E-Print Network [OSTI]

, Meteorological Institute, Germany (2) GKSS Research Centre, Institute for Coastal Research, Germany (3) Max http://coast.gkss.de/staff/zahn/ #12;22 Very intense mesoscale storms typically several hundred km for Dynamical Downscaling Purposes, Monthly Weather Review 128(10) 3664-3673. http://clm.gkss.de/ · Driven

Zahn, Matthias

417

Export of Asian pollution during two cold front episodes of the TRACE-P experiment  

E-Print Network [OSTI]

of the Asian outflow by fragmenting the pollution plume. INDEX TERMS: 0365 Atmospheric Composition and Atmospheric Dynamics: Mesoscale meteorology; KEYWORDS: warm conveyor belt, TRACE-P, pollution Citation: MariExport of Asian pollution during two cold front episodes of the TRACE-P experiment C. Mari

Palmer, Paul

418

7, 1063110667, 2007 Effects of March 2006  

E-Print Network [OSTI]

(mainly the sea influence), the background meteorolog-10 ical conditions and local cloudiness. Surface wind-speed decreased in most sites as a result of the cooling and stabilization of the atmospheric on the effect of the eclipse to the Weather Research and Forecast (WRF) numerical mesoscale me- teorological

Paris-Sud XI, Université de

419

Atmos. Chem. Phys., 7, 55435553, 2007 www.atmos-chem-phys.net/7/5543/2007/  

E-Print Network [OSTI]

by the surrounding environment (mainly the sea influence), the background meteorological conditions and local cloudiness. Surface wind-speed decreased in most sites as a result of the cooling and stabilization analysis on the effect of the eclipse to the Weather Research and Forecast (WRF) nu- merical mesoscale

Paris-Sud XI, Université de

420

The GOES Hybrid Microburst Index Kenneth L. Pryor  

E-Print Network [OSTI]

. Schaefer, J.T., 1986: The dryline. In Mesoscale Meteorology and Forecasting. P.S. Ray (Ed.), American static instability and the presence of a deep CBL, resulting from strong solar heating. GOES sounding for downbursts associated with deep convective storms that occur over the central and eastern continental United

Kuligowski, Bob

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

FEBRUARY 1999 119O ' C O N N O R E T A L . Forecast Verification for Eta Model Winds Using Lake Erie  

E-Print Network [OSTI]

. The in- crease in computer power in recent years and advances in numerical mesoscale models of both ocean September 1998) ABSTRACT This article has two purposes. The first is to describe how the Great Lakes Coastal. This includes the numerical Princeton Ocean Model (POM), observed winds from surface meteorological stations

422

Validation of PV performance models using satellite-based irradiance measurements : a case study.  

SciTech Connect (OSTI)

Photovoltaic (PV) system performance models are relied upon to provide accurate predictions of energy production for proposed and existing PV systems under a wide variety of environmental conditions. Ground based meteorological measurements are only available from a relatively small number of locations. In contrast, satellite-based radiation and weather data (e.g., SUNY database) are becoming increasingly available for most locations in North America, Europe, and Asia on a 10 x 10 km grid or better. This paper presents a study of how PV performance model results are affected when satellite-based weather data is used in place of ground-based measurements.

Stein, Joshua S.; Parkins, Andrew (Clean Power Research); Perez, Richard (University at Albany)

2010-05-01T23:59:59.000Z

423

A study of diurnal pressure and temperature oscillations in the atmosphere between 500 MB and 50 MB  

E-Print Network [OSTI]

A STUDY OF DIURNAL PRESSURE AND 'IEMPERATURE OSCILLATIONS IN TRE ATMOSPMSRE BETWEEN 500 MB AND 50 MB A Thesis By Victor Shelby Whitehead Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial... fulfillment of the requirements for the degree of January l960 IlaJor subJect - Meteorology A STUDY OP DIURNAL PRESSURE AND TEMPERATURE OSCILLATIONS IN THE ATII)SPHERE BETWEEN 500 MB AND 50 MB A Thesis By Victor Shelby Whitehead Approved as to style...

Whitehead, Victor Shelby

1960-01-01T23:59:59.000Z

424

Multi-Dimensional Effects in Longwave Radiative Forcing of PBL Clouds  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Multi-Dimensional Effects in Longwave Radiative Forcing of PBL Clouds D. B. Mechem and Y. L. Kogan Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma M. Ovtchinnikov Pacific Northwest National Laboratory Richland, Washington K. F. Evans University of Colorado Boulder, Colorado A. B. Davis Los Alamos National Laboratory Los Alamos, New Mexico R. F. Cahalan National Aeronautic and Space Administration Goddard Space Flight Center Greenbelt, Maryland E. E. Takara and R. G. Ellingson Florida State University Tallahassee, Florida 1. Introduction Numerical cloud models nearly universally employ one-dimensional (1D) treatments of radiative transfer (RT). Radiative transfer is typically implemented as a 2- or 4-stream approximation to the

425

richardson-98.pdf  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

47 47 In Situ Moisture Measurements Using Chilled Mirror Sensors S. J. Richardson Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma D. C. Tobin Space Science and Engineering Center University of Wisconsin - Madison Madison, Wisconsin Abstract Chilled mirror moisture measurement systems were installed at the Atmospheric Radiation Measurement (ARM) Cloud and Radiation Testbed (CART) Central Facility (CF) at the balloon borne sounding system (BBSS) launch site and at 25 m and 60 m on the CART tower from September 1997 through January 1998. This paper will present results from comparisons between the chilled mirror (CM) sensors and the standard ARM CART instrumentation. This work represents an extension of the work performed during the

426

1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Representing Cloud Processing of Aerosol in Representing Cloud Processing of Aerosol in Numerical Models DB Mechem and YL Kogan Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction The satellite imagery in Figure 1 provides dramatic examples of how aerosol influences the cloud field. Aerosol from ship exhaust can serve as nucleation centers in otherwise cloud-free regions, forming ship tracks (top image), or can enhance the reflectance/albedo in already cloudy regions. This image is a demonstration of the first indirect effect, in which changes in aerosol modulate cloud droplet radius and concentration, which influences albedo. It is thought that, through the effects it has on precipitation (drizzle), aerosol can also affect the structure

427

How is the Data Quality Office Doing?  

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How is the Data Quality Office Doing? How is the Data Quality Office Doing? K. L. Sonntag, R. A. Peppler, A. R. Dean, and C. M. Shafer Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction The Atmospheric Radiation Measurement (ARM) Program has collected data from its Southern Great Plains (SGP) climate research facility since late 1992, from its Tropical Western Pacific (TWP) site since 1996, and from its North Slope of Alaska (NSA) site since 1997. There are numerous instrument platforms at each site, including radiometer suites that measure solar and terrestrial radiation; tower- mounted instruments that measure wind, temperature, and humidity; subterranean sensors that measure soil moisture and thermal properties; a host of cloud-observing instruments that measure cloud extent

428

ARM - Facility News Article  

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April 15, 2010 [Facility News] April 15, 2010 [Facility News] Second Phase of African Scientific Exchange Underway Bookmark and Share Left to right: Dr. Zewdu Segele and Hama Hamidou examine reflectivity measurements made by the W-band ARM cloud radar in Niamey during July 2006. Left to right: Dr. Zewdu Segele and Hama Hamidou examine reflectivity measurements made by the W-band ARM cloud radar in Niamey during July 2006. Continuing an international collaboration that began with the ARM Mobile Facility deployment to Niamey, Niger, in 2006, meteorologist Hama Hamidou from the University of Niamey recently arrived at the Cooperative Institute for Mesoscale Meteorological Studies at the University of Oklahoma for a six-month scientific exchange. Under the guidance of Dr. Zewdu Segele, a

429

X:\ARM_19~1\P139-154.WPD  

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dA dA / dN C N k ( 1 to 2 W/m 2 ) 40 3 (2 km) 3 Session Papers 147 (1) Evaluating Aerosol Indirect Effect Through Marine Stratocumulus Clouds Z. N. Kogan, Y. L. Kogan, and D. K. Lilly Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction During the last decade much attention has been focused on anthropogenic aerosols and their radiative influence on the global climate. Charlson et al. (1992) and Penner et al. (1994) have demonstrated that tropospheric aerosols and particularly anthropogenic sulfate aerosols may significantly contribute to the radiative forcing exerting a cooling influence on climate which is comparable in magnitude to greenhouse forcing, but opposite in sign. Aerosol particles affect the earth's radiative budget either

430

Rapid Scan AERI Observations: Benefits and Analysis  

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Rapid Scan AERI Observations: Benefits and Analysis Rapid Scan AERI Observations: Benefits and Analysis W. F. Feltz, D. D. Turner, R. O. Knuteson, and R. G. Dedecker Space Science and Engineering Center Cooperative Institute of Mesoscale Meteorological Studies University of Wisconsin-Madison Madison, Wisconsin D. D. Turner Pacific Northwest National Laboratory Richland, Washington Introduction The U.S. Department of Energy's (DOE's) Atmospheric Radiation Measurement (ARM) Program has funded the development of the atmospheric emitted radiance interferometer (AERI). This has led to a hardened, autonomous system that measures downwelling infrared (IR) radiance at high-spectral resolution. Seven AERI systems have been deployed around the world as part of the ARM Program. The initial goal of these instruments was to characterize the clear-sky IR emission from the atmosphere,

431

richardson(2)-99.PDF  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Chilled Mirror Dew Point Hygrometer for Field Use Chilled Mirror Dew Point Hygrometer for Field Use S. J. Richardson Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma R. O. Knuteson and D. C. Tobin Space Science and Engineering Center University of Wisconsin Madison, Wisconsin Introduction Three chilled mirror (CM) dew point hygrometer systems have been developed at the University of Oklahoma to provide a method for obtaining NIST (National Institute for Standards and Testing) traceable atmospheric moisture measurements. The three CM systems have been designed for relatively unattended use requiring only minimal maintenance (about weekly). The CMs have a lab inaccuracy of ±0.2 EC and a field inaccuracy of roughly ±0.4 EC. The CM systems have recently been upgraded and now include a temperature (T) and relative humidity

432

1  

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Sensitivity of Satellite-Retrieved Cloud Properties to the Sensitivity of Satellite-Retrieved Cloud Properties to the Effective Variance of Cloud Droplet Size Distribution R.F. Arduini Science Applications International Corporation Hampton, Virginia P. Minnis and W.L. Smith, Jr. National Aeronautics and Space Administration Langley Research Center Hampton, Virginia J.K. Ayers and M.M. Khaiyer Analytical Services and Materials, Inc. P. Heck Coorperative Institute for Mesoscale Meteorological Studies/ University of Wisconsin-Madison Madison, Wisconsin Introduction Cloud reflectance models currently used in cloud property retrievals from satellites have been developed using size distributions defined by a set of fixed effective radii with a fixed effective variance. The satellite retrievals used for the Atmospheric Radiation Measurement (ARM) Program assume droplet

433

Section 95  

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Simulating the Nocturnal Boundary Layer Simulating the Nocturnal Boundary Layer During Low-Level Jet Events D. J. Stensrud National Oceanic and Atmospheric Administration Environmental Research Laboratories National Severe Storms Laboratory Norman, Oklahoma D. V. Mitchell National Oceanic and Atmospheric Administration Environmental Research Laboratories National Severe Storms Laboratory and Cooperative Institute for Mesoscale Meteorological Studies Norman, Oklahoma Introduction Simulating the correct evolution of the nocturnal boundary layer (NBL), also often referred to as the stable boundary layer, is a challenge for any numerical model, since the NBL is influenced by a variety of sub-grid scale phenomena (Lenschow et al. 1988). These phenomena include propagat- ing gravity waves, stationary waves that are fixed with respect

434

Section 31  

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Evaluating the Seasonal Variations of the Indirect Effect of Evaluating the Seasonal Variations of the Indirect Effect of Sulfate Aerosols Using Observation-Derived Cloud Climatology Z. N. Kogan, Y. L. Kogan and D. K. Lilly Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma, Norman, Oklahoma Introduction The three-fold anthropogenic increase of sulfur emissions into the atmosphere results in increased sulfate aerosol concentrations, mainly in the Northern Hemisphere (NH). These aerosols scatter and absorb solar radiation directly and increase reflection indirectly by changing cloud microstructure (Charlson et al. 1992; Penner et al. 1994; Schwartz and Slingo 1995). We evaluate the "indirect," i.e., cloud-induced, shortwave effect of anthropogenic sulfate aerosols in marine stratocumulus clouds. The latter have a pronounced climatic

435

1  

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SGP Site Scientist Team and ARM Data Quality Office SGP Site Scientist Team and ARM Data Quality Office SGP Data Quality Assessment Activities: A New Approach C. P. Bahrmann, R. A. Peppler, K. Sonntag, and A. Dean Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction A primary task of the Site Scientist Team (SST) of the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) site is to analyze and assess the quality of various SGP data streams. The opening of the Atmospheric Radiation Measurement (ARM) Program Data Quality Office (DQO) allowed for a cooperative effort between the SGP SST, Instrument Mentors (IM), and DQO. This approach led to the development of new tools for assessing data quality, reporting problems, and issuing

436

1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Improving the Representation of Aerosol-Cloud- Improving the Representation of Aerosol-Cloud- Precipitation Interactions in Numerical Models D.B. Mechem and Y.L. Kogan Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction Accurately representing aerosol indirect effects in large-scale numerical models requires microphysical parameterizations that treat complex aerosol-cloud-precipitation interactions in a realistic manner. Here we address two important aspects of these microphysical interactions: 1. Development of a new parameterization of giant cloud condensation nuclei (CCN) for use in bulk microphysical models; 2. Aspects of droplet nucleation revealed by 3D large eddy simulation (LES) results but not captured by nucleation schemes based on simple empirical relations or 1D parcel models

437

1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Assessing the Errors of Microphysical Retrievals Based Assessing the Errors of Microphysical Retrievals Based on Doppler Radar Parameters Y.L. Kogan, Z.N. Kogan, and D.B. Mechem Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction The paper analyzes errors in retrievals of cloud liquid water content (Q l ) and precipitation flux (R) based on three different sets of parameters: a) radar reflectivity, Z, b) radar reflectivity and Doppler velocity, V , and c) radar reflectivity and Doppler velocity spectrum width, σ d d . As radar reflectivity represents the sixth moment of the drop size distribution (DSD), one can expect it to be correlated with other moments of the DSD, such as liquid water content Q l (third moment of DSD), or drizzle flux R, which in

438

Section 90  

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SGP Site Scientist Team Data Quality SGP Site Scientist Team Data Quality Assessment Activities R. A. Peppler and M. E. Splitt Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction Data Quality Assessment Tools A primary task of the Site Scientist Team (SST) of the Following is a discussion of data quality performance metrics, Southern Great Plains (SGP) CART site is to analyze and data quality graphical displays, and calibration and main- assess the quality of the various SGP data streams. This task tenance information summaries. is performed in conjunction with other groups within ARM such as Instrument Mentors (responsible for individual instru- ments), various Data and Science Integration Team (DSIT) members (responsible for multiple data stream comparisons

439

Broadband Longwave Radiative Cooling Rates in Inhomogeneous Stratocumulus Clouds  

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Broadband Longwave Radiative Cooling Rates in Broadband Longwave Radiative Cooling Rates in Inhomogeneous Stratocumulus Clouds M. Ovtchinnikov and T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington D. B. Mechem and Y. L. Kogan Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma R. F. Cahalan National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland A. B. Davis Los Alamos National Laboratory Los Alamos, New Mexico R. G. Ellingson and E. E.Takara Florida State University Tallahassee, Florida K. F. Evans University of Colorado Boulder, Colorado Introduction We are concerned with three-dimensional (3D) effects of longwave (LW) radiative transfer (RT) through inhomogeneous clouds. In cloud models, LW RT is typically calculated under the independent

440

Research Highlight  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Parameterizing the Ice Fall Speed in Climate Models: Results from TC4 and Parameterizing the Ice Fall Speed in Climate Models: Results from TC4 and ISDAC Download a printable PDF Submitter: Mitchell, D. L., Desert Research Institute Mishra, S., NOAA - Coop. Inst. for Mesoscale Meteorological Studies Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Mitchell DL, S Mishra, and RP Lawson. 2011. "Representing the ice fall speed in climate models: Results from Tropical Composition, Cloud and Climate Coupling (TC4) and the Indirect and Semi-Direct Aerosol Campaign (ISDAC)." Journal of Geophysical Research - Atmospheres, 116, D00T03, doi:10.1029/2010JD015433. Relationship between De and Vm for all tropical cirrus cloud types (solid

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

ARM Data Quality Office … Real-Time Assessment of Instrument Performance  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Data Quality Office Data Quality Office Real-Time Assessment of ARM Data *Ken Kehoe *Randy Peppler *Karen Sonntag *Terra Thompson *Nathan Hiers *Chris Schwarz Cooperative Institute for Mesoscale Meteorological Studies, The University of Oklahoma, Norman, OK *Sean Moore ATK Mission Research, Santa Barbara, CA ARM Data Quality History Originally, each Site Scientist and Instrument Mentor was responsible for data quality analysis. This resulted in uneven treatment of instruments at the different ARM climate research facilities. The ARM Infrastructure Review in 1999 decided there was a need for a single data quality "czar" to oversee DQ activities for all sites. In response to this review the ARM DQO was established in July 2000 at The University of Oklahoma. ARM's goal is to provide the best data possible for scientific

442

Kogan-ZN  

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Drop Effective Radius for Drizzling Drop Effective Radius for Drizzling Marine Stratus in Global Circulation Models Z. N. Kogan and Y. L. Kogan Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction The cloud drop effective radius, R e , is one of the most important parameters in calculations of cloud radiative properties. Numerous formulations of the effective radius have been developed for use in numerical models (see, e.g., review in Gultepe et al. 1996); however, to the best of our knowledge, they all were designed for non-drizzling clouds. The objective of this paper is to derive a parameterization of R e for precipitating boundary layer clouds. The R e parameterization is necessarily a function of cloud prognostic variables used in a specific numerical model. To this regard, we note that the majority of

443

Log-normal distribution based EMOS models for probabilistic wind speed forecasting  

E-Print Network [OSTI]

Ensembles of forecasts are obtained from multiple runs of numerical weather forecasting models with different initial conditions and typically employed to account for forecast uncertainties. However, biases and dispersion errors often occur in forecast ensembles, they are usually under-dispersive and uncalibrated and require statistical post-processing. We present an Ensemble Model Output Statistics (EMOS) method for calibration of wind speed forecasts based on the log-normal (LN) distribution, and we also show a regime-switching extension of the model which combines the previously studied truncated normal (TN) distribution with the LN. Both presented models are applied to wind speed forecasts of the eight-member University of Washington mesoscale ensemble, of the fifty-member ECMWF ensemble and of the eleven-member ALADIN-HUNEPS ensemble of the Hungarian Meteorological Service, and their predictive performances are compared to those of the TN and general extreme value (GEV) distribution based EMOS methods an...

Baran, Sndor

2014-01-01T23:59:59.000Z

444

1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sensitivity of Convective Indices to Humidity Adjustments Sensitivity of Convective Indices to Humidity Adjustments M. E. Splitt University of Utah Salt Lake City, Utah R. A. Peppler Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma K. M. Kuhlman University of North Carolina Asheville, North Carolina Introduction Modification of Atmospheric Radiation Measurement (ARM) Program Balloon-borne Sounding System (BBSS) data streams has been conducted as part of instantaneous radiative Flux (IRF) Working Group efforts to improve the comparison between Atmospheric Emitted Radiance Interferometer (AERI) spectral infrared radiation measurements and line-by-line radiative transfer model estimates (Turner et al. 1998). The focus for the modification of BBSS data has been on its humidity measurements. The

445

Exploration of the meteorological characteristics leading to the rapid cessation of cloud-to-ground lightning in winter cyclones along the East Coast of the United States  

E-Print Network [OSTI]

Intense winter East Coast cyclones are capable of producing large amounts of cloud-to-ground (CG) lightning. Few studies have thoroughly investigated winter lightning in the eastern United States. A phenomena common to most of these storms is a...

Demetriades, Nicholas William Snow

2012-06-07T23:59:59.000Z

446

1004 VOLUME 10J O U R N A L O F C L I M A T E 1997 American Meteorological Society  

E-Print Network [OSTI]

. An important auxiliary time series used in this study is a ``Southern Oscillation index'' based on marine. The pattern re- sembles the leading nonseasonal EOF of Pacific SST (Weare et al. 1976) and global SST (Hsuing

Battisti, David

447

Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. 138: 5671, January 2012 A Initiation of daytime local convection in a semi-arid region  

E-Print Network [OSTI]

­71. DOI:10.1002/qj.903 1. Introduction Current climate and Earth system models exhibit large biases their representation in climate and Earth system models. Recent studies on the diurnal cycle and the transition from

Guichard, Francoise

448

Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. (2010) Forced gravity wave response near the jet exit region in a linear  

E-Print Network [OSTI]

studies based on simulations of idealized jets during life cycles of baroclinic waves (O are largely constrained by the environmental wind shear through the wave capture mechanism. Consequently tracing analysis is further used to demonstrate that wave capturing is the consequence of different

449

142 VOLUME 18W E A T H E R A N D F O R E C A S T I N G 2003 American Meteorological Society  

E-Print Network [OSTI]

. This case study analyzes the performance of four of the numerical weather prediction models that aided on forecasts. 1. Introduction Over the past decade, numerical weather prediction over the polar regions has Performance of Weather Forecast Models in the Rescue of Dr. Ronald Shemenski from the South Pole in April 2001

Howat, Ian M.

450

NREL: Systems Engineering - 2013 Wind Energy Systems Engineering...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

with creating a multi-fidelity framework for optimization of onshore and offshore wind farms. The second involves mesoscale wake effects for studying the effects of entire...

451

Slide 1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

a Mesoscale Convective System Sampled During TWP-ICE: Analysis via Water Budget Equations Jasmine Cetrone and Robert Houze University of Washington Introduction This study computes...

452

Numerical Simulation in Applied Geophysics. From the Mesoscale to ...  

E-Print Network [OSTI]

Instituto del Gas y del Petrleo, Facultad de Ingenie? a UBA ... Seismic wave propagation is a common technique used in hydrocarbon exploration geophysics

453

Numerical Simulation in Applied Geophysics. From the Mesoscale to ...  

E-Print Network [OSTI]

Instituto del Gas y del Petroleo, Facultad de Ingenier?a UBA. ,. Facultad de ... hydrocarbon exploration geophysics, mining and reservoir characterization and production. Local variations in the fluid ... physical process of wave propagation can be inspected during the experiment. ..... Black-Oil simulator. CO2 saturation...

2013-07-05T23:59:59.000Z

454

The Advection of Mesoscale Atmospheric Vortices over Reykjavk  

Science Journals Connector (OSTI)

On 12 August 2009, a series of satellite images revealed asymmetric shedding of atmospheric vortices in the lee of Mt. Snfellsjkull, and their passage a distance of 120 km across Faxafli Bay and over the city of Reykjavk in West Iceland. After ...

Hlfdn gstsson; Haraldur lafsson

2014-10-01T23:59:59.000Z

455

Numerical Simulation in Applied Geophysics. From the Mesoscale to ...  

E-Print Network [OSTI]

Instead of solving the global problem associated with the above model, we obtained the solution using a parallel FE ... Black-Oil simulator. .... used in hydrocarbon exploration geophysics, mining and reservoir characterization and production.

456

Lattice Boltzmann Simulations for Microfluidics and Mesoscale Phenomena  

Science Journals Connector (OSTI)

The Lattice Boltzmann Equation (LBE) method is described for...2 bubbly flow demonstrate its capability in simulating multiphysics phenomena that are challenging for conventional Navier-Stokes based techniques.

E. Monaco; K. H. Luo; R. S. Qin

2009-01-01T23:59:59.000Z

457

Numerical Simulation in Applied Geophysics. From the Mesoscale to ...  

E-Print Network [OSTI]

due to patchy brine-CO2 saturation .... Case 4: A brine saturated sample with a fractal frame and ..... foods, groundwater flow and contamination among others.

santos

458

Evolution of moisture convergence in a mesoscale convective complex  

E-Print Network [OSTI]

approach is very similar to that used by other researchers (Hilliger and Vonder Haar, 1979; Maddox and Vonder Haar, 1979; Fuelberg and Meyer, 1984) for satellite or radiosonde data. Their procedure also used separation intervals but because..., the dominant contributor to MC in the region of interest was the advection term (compare Figs. 14 and 15). This is contrary to the findings of other researchers (Negri and Vonder Haar, 1980; Cotton et al. , 1989), who have found that the divergence term...

Bercherer, John Phillip

1990-01-01T23:59:59.000Z

459

HYBRID DECADE-MEAN GLOBAL SEA LEVEL WITH MESOSCALE RESOLUTION  

E-Print Network [OSTI]

. INTRODUCTION Shape of the sea level determines geostrophic currents in the upper ocean, which play important. Niiler2 1 International Pacific Research Center, School of Ocean and Earth Science and Technology in drifter, satellite altimeter and wind data. Hybrid product reveals complex structures of main currents

460

Mesoscale coupled ocean-atmosphere feedbacks in boundary current systems  

E-Print Network [OSTI]

response of the ocean eddies . The power spectrum of thethe ocean. As such, the larger energy in the power spectrumocean eddies. On the other hand, Smoothed ROMS has higher power

Putrasahan, Dian Ariyani

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mesoscale meteorological studies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Transport and Mixing Patterns over Central California during the Carbonaceous Aerosol and Radiative Effects Study (CARES)  

SciTech Connect (OSTI)

We describe the synoptic and regional-scale meteorological conditions that affected the transport and mixing of trace gases and aerosols in the vicinity of Sacramento, California during June 2010 when the Carbonaceous Aerosol and Radiative Effects Study (CARES) was conducted. The meteorological measurements collected by various instruments deployed during the campaign and the performance of the chemistry version of the Weather Research and Forecasting model (WRF-Chem) are both discussed. WRF-Chem was run daily during the campaign to forecast the spatial and temporal variation of carbon monoxide emitted from 20 anthropogenic source regions in California to guide aircraft sampling. The model is shown to reproduce the overall circulations and boundary-layer characteristics in the region, although errors in the upslope wind speed and boundary-layer depth contribute to differences in the observed and simulated carbon monoxide. Thermally-driven upslope flows that transported pollutants from Sacramento over the foothills of the Sierra Nevada occurred every afternoon, except during three periods when the passage of mid-tropospheric troughs disrupted the regional-scales flow patterns. The meteorological conditions after the passage of the third trough were the most favorable for photochemistry and likely formation of secondary organic aerosols. Meteorological measurements and model forecasts indicate that the Sacramento pollutant plume was likely transported over a downwind site that collected trace gas and aerosol measurements during 23 periods; however, direct transport occurred during only eight of these periods. The model also showed that emissions from the San Francisco Bay area transported by intrusions of marine air contributed a large fraction of the carbon monoxide in the vicinity of Sacramento, suggesting that this source likely affects local chemistry. Contributions from other sources of pollutants, such as those in the Sacramento Valley and San Joaquin Valley, were relatively low. Aerosol layering in the free troposphere was observed during the morning by an airborne Lidar; WRF-Chem forecasts showed that mountain venting processes contributed to aged pollutants aloft in the valley atmosphere which then can be entrained into the growing boundary layer the subsequent day.

Fast, Jerome D.; Gustafson, William I.; Berg, Larry K.; Shaw, William J.; Pekour, Mikhail S.; Shrivastava, ManishKumar B.; Barnard, James C.; Ferrare, R.; Hostetler, Chris A.; Hair, John; Erickson, Matthew H.; Jobson, Tom; Flowers, Bradley; Dubey, Manvendra K.; Springston, Stephen R.; Pirce, Bradley R.; Dolislager, Leon; Pederson, J. R.; Zaveri, Rahul A.

2012-02-17T23:59:59.000Z

462

Transport and mixing patterns over Central California during the carbonaceous aerosol and radiative effects study (CARES)  

SciTech Connect (OSTI)

We describe the synoptic and regional-scale meteorological conditions that affected the transport and mixing of trace gases and aerosols in the vicinity of Sacramento, California during June 2010 when the Carbonaceous Aerosol and Radiative Effects Study (CARES) was conducted. The meteorological measurements collected by various instruments deployed during the campaign and the performance of the chemistry version of the Weather Research and Forecasting model (WRF-Chem) are both discussed. WRF-Chem was run daily during the campaign to forecast the spatial and temporal variation of carbon monoxide emitted from 20 anthropogenic source regions in California to guide aircraft sampling. The model is shown to reproduce the overall circulations and boundary-layer characteristics in the region, although errors in the upslope wind speed and boundary-layer depth contribute to differences in the observed and simulated carbon monoxide. Thermally-driven upslope flows that transported pollutants from Sacramento over the foothills of the Sierra Nevada occurred every afternoon, except during three periods when the passage of mid-tropospheric troughs disrupted the regional-scale flow patterns. The meteorological conditions after the passage of the third trough were the most favorable for photochemistry and likely formation of secondary organic aerosols. Meteorological measurements and model forecasts indicate that the Sacramento pollutant plume was likely transported over a downwind site that collected trace gas and aerosol measurements during 23 time periods; however, direct transport occurred during only eight of these periods. The model also showed that emissions from the San Francisco Bay area transported by intrusions of marine air contributed a large fraction of the carbon monoxide in the vicinity of Sacramento, suggesting that this source likely affects local chemistry. Contributions from other sources of pollutants, such as those in the Sacramento Valley and San Joaquin Valley, were relatively low. Aerosol layering in the free troposphere was observed during the morning by an airborne Lidar. WRF-Chem forecasts showed that mountain venting processes contributed to aged pollutants aloft in the valley atmosphere that are then entrained into the growing boundary layer the subsequent day.

Fast J. D.; Springston S.; GustafsonJr., W. I.; Berg, L. K.; Shaw, W. J.; Pekour, M.; Shrivastava, M.; Barnard, J. C.; Ferrare, R. A.; Hostetler, C. A.; Hair, J. A.; Erickson, M.; Jobson, B. T.; Flowers, B.; Dubey, M. K.; Pierce, R. B.; Dolislager, L.; Pederson, J.; Zaveri, R. A.

2012-02-17T23:59:59.000Z

463

Performances of photovoltaic water pumping systems: a case study  

Science Journals Connector (OSTI)

This paper presents a mathematical motor-pump model for photovoltaic (PV) applications which allow us to contribute in the studies of PV pumping sizing. The modelled motor-pump characteristic is flow rate-power (Q, P). The model is established for centrifugal pump (CP) coupled to DC motor. The non-linear relation between flow rate and solar power has been obtained experimentally in a first step and then used for performance prediction. The model proposed enabled us to simulate the electric and hydraulic performances of CP pumps versus the total water heads for different PV array configuration. The experimental data are obtained with our pumping test facility. The performances are calculated using the measured meteorological data of different sites located in Saudi Arabia. The size of the PV array is varied to achieve the optimum performance of the proposed system.

M. Benghanem

2009-01-01T23:59:59.000Z

464

Resuspension studies in the Marshall Islands  

SciTech Connect (OSTI)

The contribution of inhalation exposure to the total dose for residents of the Marshall Islands was monitored at occasions of opportunity on several islands in the Bikini and Enewetak Atolls. To determine the long-term potential for inhalation exposure, and to understand the mechanisms of redistribution and personal exposure, additional investigations were undertaken on Bikini Island under modified and controlled conditions. Experiments were conducted to provide key parameters for the assessment of inhalation exposure from plutonium-contaminated dust aerosols: characterization of the contribution of plutonium in soil-borne aerosols as compared to sea spray and organic aerosols, determination of plutonium resuspension rates as measured by the meteorological flux-gradient method during extreme conditions of a bare-soil vs. a stabilized surface, determination of the approximate individual exposures to resuspended plutonium by traffic, and studies of exposures to individuals in different occupational environments simulated by personal air sampling of workers assigned to a variety of tasks. Enhancement factors (defined as ratios of the plutonium-activity), of suspended aerosols relative to the plutonium-activity of the soil were determined to be less than 1 (typically 0.4 to 0.7) in the undisturbed, vegetated areas, but greater than 1 (as high as 3) for the case studies of disturbed bare soil, roadside travel, and for occupational duties in fields and in and around houses. 12 refs., 5 figs., 8 tabs.

Shinn, J.H.; Homan, D.N.; Robison, W.L. [Lawrence Livermore National Lab., CA (United States)

1997-07-01T23:59:59.000Z

465

Modelin the Transport and Chemical Evolution of Onshore and Offshore Emissions and Their Impact on Local and Regional Air Quality Using a Variable-Grid-Resolution Air Quality Model  

SciTech Connect (OSTI)

The overall objective of this research project was to develop an innovative modeling technique to adequately model the offshore/onshore transport of pollutants. The variable-grid modeling approach that was developed alleviates many of the shortcomings of the traditionally used nested regular-grid modeling approach, in particular related to biases near boundaries and the excessive computational requirements when using nested grids. The Gulf of Mexico region contiguous to the Houston-Galveston area and southern Louisiana was chosen as a test bed for the variable-grid modeling approach. In addition to the onshore high pollution emissions from various sources in those areas, emissions from on-shore and off-shore oil and gas exploration and production are additional sources of air pollution. We identified case studies for which to perform meteorological and air quality model simulations. Our approach included developing and evaluating the meteorological, emissions, and chemistry-transport modeling components for the variable-grid applications, with special focus on the geographic areas where the finest grid resolution was used. We evaluated the performance of two atmospheric boundary layer (ABL) schemes, and identified the best-performing scheme for simulating mesoscale circulations for different grid resolutions. Use of a newly developed surface data assimilation scheme resulted in improved meteorological model simulations. We also successfully ingested satellite-derived sea surface temperatures (SSTs) into the meteorological model simulations, leading to further improvements in simulated wind, temperature, and moisture fields. These improved meteorological fields were important for variable-grid simulations, especially related to capturing the land-sea breeze circulations that are critical for modeling offshore/onshore transport of pollutants in the Gulf region. We developed SMOKE-VGR, the variable-grid version of the SMOKE emissions processing model, and tested and evaluated this new system. We completed the development of our variable-grid-resolution air quality model (MAQSIP-VGR) and performed various diagnostic tests related to an enhanced cloud parameterization scheme. We also developed an important tool for variable-grid graphics using Google Earth. We ran the MAQSIP-VGR for the Houston-Galveston and southern Louisiana domains for an August 23 to September 2, 2002, episode. Results of the modeling simulations highlighted the usefulness of the variable-grid modeling approach when simulating complex terrain processes related to land and sea close to an urban area. Our results showed that realistic SST patterns based on remote sensing are critical to capturing the land-sea breeze, in particular the inland intrusion of the reversed mesoscale circulation that is critical for simulating air pollution over urban areas near coastal regions. Besides capturing the correct horizontal gradient between land and sea surface temperatures, it is important to use an adequate ABL scheme in order to quantify correctly the vertical profiles of various parameters. The ABL scheme should capture the dynamics of the marine boundary layer, which is not often considered in a typical simulation over land. Our results further showed the effect of using satellite-derived SSTs on the horizontal and vertical extent of the modeled pollution pattern, and the increase in hourly ozone concentrations associated with changes in ABL characteristics resulting from the enhanced mesoscale circulation in the lower troposphere.

Adel Hanna

2008-10-16T23:59:59.000Z

466

DE-SC0001933 DOE Final Report  

SciTech Connect (OSTI)

The overall objective of this study was to improve the representation of regional ocean circulation in the North Pacific by using high resolution atmospheric forcing that accurately represents mesoscale processes in ocean-atmosphere regional (North Pacific) model configuration. The goal was to assess the importance of accurate representation of mesoscale processes in the atmosphere and the ocean on large scale circulation. This is an important question, as mesoscale processes in the atmosphere which are resolved by the high resolution mesoscale atmospheric models such as Weather Research and Forecasting (WRF), are absent in commonly used atmospheric forcing such as CORE forcing, employed in e.g. the Community Climate System Model (CCSM).

Cerovecki, Ivana

2014-11-14T23:59:59.000Z

467

Radon in atmospheric studies: a review  

SciTech Connect (OSTI)

The distribution of the isotopes of radon in space and time, their physical characteristics, and their behavior in the dynamics of the atmosphere have presented challenges for many decades. /sup 220/Rn, /sup 222/Rn and their daughters furnish a unique set of tracers for the study of transport and mixing processes in the atmosphere. Appropriate applications of turbulent diffusion theory yield general agreement with measured profiles. Diurnal and seasonal variations follow patterns set by consideration of atmospheric stability. /sup 222/Rn has been used successfully in recent studies of nocturnal drainage winds and cumulus convection. Good results have been obtained using /sup 222/Rn and its long-lived /sup 210/Pb daughter as tracers in the study of continent-to-ocean and ocean-to-continent air mass trajectories, /sup 220/Rn (thoron) because of its short half-life of only 55 seconds has been used to measure turbulent diffusion within the first few meters of the earth's surface and to study the influence of meteorological variables on the rate of exhalation from the ground. Radon daughters attach readily to atmospheric particulate matter which makes it possible to study these aerosols with respect to size spectra, attachment characteristics, removal by gravitation and precipitation, and residence times in the troposphere. The importance of ionization by radon and its daughters in the lower atmosphere and its effect on atmospheric electrical parameters is well known. Knowledge of the mobility and other characteristics of radon daughter ions has led to applications in the study of atmospheric electrical environments under fair weather and thunderstorm conditions and in the formation of condensation nuclei. The availability of increasingly sophisticated analytical tools and atmospheric measurement systems can be expected to add much to our understanding of radon and its daughters as trace components of the atmospheric environment in the years ahead.

Wilkening, M.

1981-01-01T23:59:59.000Z

468

Study AreaIntroduction U.S. Department of the Interior  

E-Print Network [OSTI]

other things, on the continuing and increased use of hydroelectric power. However, climate change itself provision of hydropower. Index Terms-- hydroelectric power generation, hydrology, meteorology, finance, risk

469

Meteorological Data Report for Laurel, Nebraska  

Open Energy Info (EERE)

.0.60 Dec 2005 .0.60 Dec 2005 WindPRO is developed by EMD International A/S, Niels Jernesvej 10, DK-9220 Aalborg Ø, Tlf. +45 96 35 44 44, Fax +45 96 35 44 46, e-mail: windpro@emd.dk Project: Laurel Description: Data from file(s) Y:\5000\IS\shared\Anemometer_Loan_Programs\Completed_Sites\WAPA\Laurel\Laurel 010611.csv Y:\5000\IS\shared\Anemometer_Loan_Programs\Completed_Sites\WAPA\Laurel\Laurel 010701.csv Y:\5000\IS\shared\Anemometer_Loan_Programs\Completed_Sites\WAPA\Laurel\Laurel 010801.csv Y:\5000\IS\shared\Anemometer_Loan_Programs\Completed_Sites\WAPA\Laurel\Laurel 010831.csv Y:\5000\IS\shared\Anemometer_Loan_Programs\Completed_Sites\WAPA\Laurel\Laurel 011001.csv Y:\5000\IS\shared\Anemometer_Loan_Programs\Completed_Sites\WAPA\Laurel\Laurel 011101.csv Y:\5000\IS\shared\Anemometer_Loan_Programs\Completed_Sites\WAPA\Laurel\Laurel 011202.csv

470

Meteorological Data Report for YKHC Bethel, Alaska  

Open Energy Info (EERE)

YKHC YKHC Description: Data from file(s) Y:\5000\shared\Anemometer_Loan_Programs\WPA.NA.Loans\YKHC - Bethel Hospital - AK\Wind Data\YKHC-Bethel 030223.csv Y:\5000\shared\Anemometer_Loan_Programs\WPA.NA.Loans\YKHC - Bethel Hospital - AK\Wind Data\YKHC-Bethel 030327.csv Y:\5000\shared\Anemometer_Loan_Programs\WPA.NA.Loans\YKHC - Bethel Hospital - AK\Wind Data\YKHC-Bethel 030506.csv Y:\5000\shared\Anemometer_Loan_Programs\WPA.NA.Loans\YKHC - Bethel Hospital - AK\Wind Data\YKHC-Bethel 030603.csv Y:\5000\shared\Anemometer_Loan_Programs\WPA.NA.Loans\YKHC - Bethel Hospital - AK\Wind Data\YKHC-Bethel 030701.csv Y:\5000\shared\Anemometer_Loan_Programs\WPA.NA.Loans\YKHC - Bethel Hospital - AK\Wind Data\YKHC-Bethel 030806.csv Y:\5000\shared\Anemometer_Loan_Programs\WPA.NA.Loans\YKHC - Bethel Hospital - AK\Wind Data\YKHC-Bethel 030903.csv

471

Solar Radiation and Meteorological Data Support  

E-Print Network [OSTI]

Characterize the solar resource potential for feasibility assessment of centralized PV solarfeasibility assessment of centralized PV solar gene ating facilities in the No theastgene ating facilities in the No theastgenerating facilities in the Northeastgenerating facilities in the Northeast ·· Expansion of the national PV solar data

Homes, Christopher C.

472

Meteorology and Atmospheric ISSN 0177-7971  

E-Print Network [OSTI]

of precipitation scav- enging are calculated for wet removal of sulfur dioxide (SO2) and ammonia (NH3) using of soluble trace gas in gaseous and liquid phases, mole l-1 c(G) Concentration of soluble trace gas Raindrop diameter, m DG Coefficient of diffusion in a gaseous phase, cm2 s-1 HA Henry's law constant, mole

Elperin, Tov

473

METEOROLOGICAL APPLICATIONS Meteorol. Appl. 14: 195203 (2007)  

E-Print Network [OSTI]

into rainfall intensity R is non-trivial and depends heavily on the actual drop size distribution (DSD and Palmer (1948) is almost 60 years old. Uijlenhoet and Stricker (1999) have inves- tigated the inconsistency of the Z-R relations in great detail and have developed a consistent rainfall parame- terization

Stoffelen, Ad

474

Antarctic Satellite Meteorology: Applications for Weather Forecasting  

Science Journals Connector (OSTI)

For over 30 years, weather forecasting for the Antarctic continent and adjacent Southern Ocean has relied on weather satellites. Significant advancements in forecasting skill have come via the weather satellite. The advent of the high-resolution ...

Matthew A. Lazzara; Linda M. Keller; Charles R. Stearns; Jonathan E. Thom; George A. Weidner

2003-02-01T23:59:59.000Z

475

By Charles Fitzhugh Talmn, Authority on Meteorology.  

E-Print Network [OSTI]

a t Bellefonte, Pa., and Hadley Field, N.Y. , the visibility was decreasing and clouds showed a tendency t o at Bellefonte i n case Hadley Field were foggy. impracticable. Reaching Bellefonte, the p i l o t found the f i e l d foggy and the landing Hadley Field was s t i l l clear. Vhen half way from Bellefonte

476

The Mutual Adjustment of Meteorological Elements  

Science Journals Connector (OSTI)

The complete set of equations of atmospheric fluid dynamics and thermodynamics contains time derivatives of five elements: u, v, w, p, ? (or T), i.e., it is of the fifth order in time. For initial value (Cauchy) ...

S. Panchev

1985-01-01T23:59:59.000Z

477

CURRENT NOTES ON METEOROLOGY AND CLIMATOLOGY  

Science Journals Connector (OSTI)

...principle of the normal wind. Those who are interested...by H. W. Richardson, local forecaster at Duluth...sensible temperatures. "Foehn in New South Wales...the gauges as regards wind, amount to 5.5 per...Schneemessung durch den Wind," ibid., 1906, No...

R. Dec. Ward

1907-10-18T23:59:59.000Z

478

Meteorological Effects on Air/Fuel Ratio  

E-Print Network [OSTI]

1. "Temperature Compensat d Air/Fuel Ratio Control on a Recuperated Furnace," by J. L. Ferri. GTE Products Corporation, Towanda, PA, lECTC '83 2. Chemical Engineers Handbook, PerTY and Chilton, 5th ed.., (McGraw Hlln, p. 12-7. 3. "Technology..., E = (100 ... 10) (ill) - 100 = 17.2% excess a . 2 Example 2 A furnace uses recuperators which prehe~t the combustion air to 1200 OF using 30 OF air. WithJlOO OF air, the preheated air temperature will be approxIjrnately 1270 OF, a 70 OF increase...

Ferri, J. L.

1984-01-01T23:59:59.000Z

479

Ground-Based Microwave Study of LWP Spatial Anisotropy in Winter Clouds  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Ground-Based Microwave Study of LWP Spatial Ground-Based Microwave Study of LWP Spatial Anisotropy in Winter Clouds A. V. Koldaev, E. A. Miller, V. E. Kadygrov, and A. I. Gusev Central Aerological Observatory Moscow, Russia A. V. Troitsky Radio Physics Institute of Nigny Novgorod, Russia W. Strapp Meteorological Service of Canada Cloud Physics Research Division Ottawa, Canada Introduction The role of horizontal anisotropy of the cloud field in the radiation transfer is under investigation of Atmospheric Radiation Measurement (ARM) science team since the beginning of the program. It was recognized within last few years that the inhomogeneity of clouds could lead to large errors in heat fluxes calculations. It was calculated and experimentally proved (Gorchakova, Golitsyn et al. 2001) that

480

P:\JODI\PGS77-91.WPD  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Data Assimilation of a Ten-Day Period During June Data Assimilation of a Ten-Day Period During June 1993 Over the Southern Great Plains Site Using a Nested Mesoscale Model J. Dudhia and Y.-R. Guo Mesoscale and Microscale Meteorology Division National Center for Atmospheric Research Boulder, Colorado Introduction A goal of the Atmospheric Radiation Measurement (ARM) Program has been to obtain a complete representation of physical processes on the scale of a general circulation model (GCM) grid box in order to better parameterize radiative processes in these models. Since an observational network of practical size cannot be used alone to characterize the Cloud and Radiation Testbed (CART) site's 3D structure and time development, data assimilation using the enhanced observations together with a mesoscale model is used to give a full 4D analysis at

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481

Factors leading to the formation of arc cloud complexes  

E-Print Network [OSTI]

weather satellite in February 1966 (Schnapf, 1982), satellite observations and interpretation have become increasingly important in the areas of weather research and operational forecasting. One reason is that geostationary satellite imagery... by conventional meteorological observations. This unique ability of the satellite provides the meteo- rologist a mechanism to infer weather events down to the mesoscale. A well-known phenomenon which occurs as a thunderstorm propagates past a station...

Welshinger, Mark John

2012-06-07T23:59:59.000Z

482

Modelling agricultural ammonia emissions: impact on particulate matter Hamaoui-Laguel L.1  

E-Print Network [OSTI]

: air/soil temperature, air/soil humidity, wind speed and rainfall are provided to Volt'Air by the outputs of the meteorological mesoscale model WRF (Weather Research and Forecasting; http://www.wrf- model://www.orleans.inra.fr/les_unites/us_infosol) are available at local scale and have been interpolated on the chosen grid scale (0.15° X 0.10°). Data about

Paris-Sud XI, Université de

483

Analysis of the causes of heavy aerosol pollution in Beijing, China: A case study with the WRF-Chem model  

Science Journals Connector (OSTI)

Abstract The causes and variability of a heavy haze episode in the Beijing region was analyzed. During the episode, the PM2.5 concentration reached a peak value of 450?g/kg on January 18, 2013 and rapidly decreased to 100?g/kg on January 19, 2013, characterizing a large variability in a very short period. This strong variability provides a good opportunity to study the causes of the haze formation. The in situ measurements (including surface meteorological data and vertical structures of the winds, temperature, humidity, and planetary boundary layer (PBL)) together with a chemical/dynamical regional model (WRF-Chem) were used for the analysis. In order to understand the rapid variability of the PM2.5 concentration in the episode, the correlation between the measured meteorological data (including wind speed, PBL height, relative humidity, etc.) and the measured particle concentration (PM2.5 concentration) was studied. In addition, two sensitive model experiments were performed to study the effect of individual contribution from local emissions and regional surrounding emissions to the heavy haze formation. The results suggest that there were two major meteorological factors in controlling the variability of the PM2.5 concentration, namely, surface wind speed and PBL height. During high wind periods, the horizontal transport of aerosol particles played an important role, and the heavy haze was formed when the wind speeds were very weak (less than 1m/s). Under weak wind conditions, the horizontal transport of aerosol particles was also weak, and the vertical mixing of aerosol particles played an important role. As a result, the PBL height was a major factor in controlling the variability of the PM2.5 concentration. Under the shallow PBL height, aerosol particles were strongly confined near the surface, producing a high surface PM2.5 concentration. The sensitivity model study suggests that the local emissions (emissions from the Beijing region only) were the major cause for the heavy haze events. With only local emissions, the calculated peak value of the PM2.5 concentration was 350?g/kg, which accounted for 78% of the measured peak value (450?g/kg). In contrast, without the local emissions, the calculated peak value of the PM2.5 concentration was only 100?g/kg, which accounted for 22% of the measured peak value.

Hui He; Xuexi Tie; Qiang Zhang; Xiange Liu; Qian Gao; Xia Li; Yang Gao

2014-01-01T23:59:59.000Z

484

Market Studies  

Broader source: Energy.gov [DOE]

This page contains links to lighting market characterization studies published by the U.S. Department of Energy, plus information on current studies under way. These studies are intended to present...

485

Ecological Studies  

Office of Legacy Management (LM)

Studies Book 1 Rulison Animal (and Fish) Printout . . Results g4-..* 9%- mc,-y----T. . , -..-- x.. ? ,.-: ? . - ; : . * r - . - . ; r m - - - . . . . . . . . . . . . . . . ....

486

Sound Studies Meets Deaf Studies  

E-Print Network [OSTI]

Sound studies and Deaf studies may seem at first impression to operate in worlds apart. We argue in this article, however, that similar renderings of hearing, deafness, and seeing as ideal types - and as often essentialized ...

Friedner, Michele Ilana

487

CARES: Carbonaceous Aerosol and Radiative Effects Study Operations Plan  

SciTech Connect (OSTI)

The CARES field campaign is motivated by the scientific issues described in the CARES Science Plan. The primary objectives of this field campaign are to investigate the evolution and aging of carbonaceous aerosols and their climate-affecting properties in the urban plume of Sacramento, California, a mid-size, mid-latitude city that is located upwind of a biogenic volatile organic compound (VOC) emission region. Our basic observational strategy is to make comprehensive gas, aerosol, and meteorological measurements upwind, within, and downwind of the urban area with the DOE G-1 aircraft and at strategically located ground sites so as to study the evolution of urban aerosols as they age and mix with biogenic SOA precursors. The NASA B-200 aircraft, equipped with the High Spectral Resolution Lidar (HSRL), digital camera, and the Research Scanning Polarimeter (RSP), will be flown in coordination with the G-1 to characterize the vertical and horizontal distribution of aerosols and aerosol optical properties, and to provide the vertical context for the G-1 and ground in situ measurements.

Zaveri, RA; Shaw, WJ; Cziczo, DJ

2010-07-12T23:59:59.000Z

488

Forensic Studies  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Forensic Studies The unique capabilities of AMS are well-suited to complementing the wide range of analytical tools that are applied to nuclear forensics, not just in...

489

This Study  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

This Study Several studies demonstrated aerosol indirect e ect such as modi cations of cloud properties due to aerosols and corresponding changes in shortwave and longwave radiative uxes. Some recent studies indicated aerosol indirect e ects may not be the primary modulator of cloud optical properties in certain situations. They implied other processes were impacting the cloud optical properties (Kim et al., JGR 2003). To study these other impacts, we extend a previous study to investigate the role of adiabaticity facilitated by mixing in modulating cloud optical properties. We quantify the e ects of mixing by measuring the ratio of the observed cloud water path to its adiabatic value, (adiabaticity, α). The screening criteria for relatively homogeneous stratus

490

The VAMOS Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx): Goals, platforms, and field operations  

SciTech Connect (OSTI)

The VAMOS Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx) was an international field program designed to make observations of poorly understood but critical components of the coupled climate system of the southeast Pacific. This region is characterized by strong coastal upwelling, the coolest SSTs in the tropical belt, and is home to the largest subtropical stratocumulus deck on Earth. The field intensive phase of VOCALS-REx took place during October and November 2008 and constitutes a critical part of a broader CLIVAR program (VOCALS) designed to develop and promote scientific activities leading to improved understanding, model simulations, and predictions of the southeastern Pacific (SEP) coupled ocean-atmosphere-land system, on diurnal to interannual timescales. The other major components of VOCALS are a modeling program with a model hierarchy ranging from the local to global scales, and a suite of extended observations from regular research cruises, instrumented moorings, and satellites. The two central themes of VOCALS-REx focus upon (a) links between aerosols, clouds and precipitation and their impacts on marine stratocumulus radiative properties, and (b) physical and chemical couplings between the upper ocean and the lower atmosphere, including the role that mesoscale ocean eddies play. A set of hypotheses designed to be tested with the combined field, monitoring and modeling work in VOCALS is presented here. A further goal of VOCALS-REx is to provide datasets for the evaluation and improvement of large-scale numerical models. VOCALS-REx involved five research aircraft, two ships and two surface sites in northern Chile. We describe the instrument payloads and key mission strategies for these platforms and give a summary of the missions conducted.

Wood, R.; Springston, S.; Mechoso, C. R.; Bretherton, C. S.; A.Weller, R.; Huebert, B.; Straneo, F.; Albrecht, B. A.; Coe, H.; Allen, G.; Vaughan, G.; Daum, P.; Fairall, C.; Chand, D.; Klenner, L. G.; Garreaud, R.; Grados, C.; Covert, D. S.; Bates, T. S.; Krejci, R.; Russell, L. M.; Szoeke, S. d.; Brewer, A.; Yuter, S. E.; Chaigneau, A.; Toniazzo, T.; Minnis, P.; Palikonda, R.; Abel, S. J.; Brown, W. O. J.; Williams, S.; Fochesatto, J.; Brioude, J.; Bower, K. N

2011-01-21T23:59:59.000Z

491

Case Study  

Broader source: Energy.gov (indexed) [DOE]

Study M2M Smart Grid Investment Grant 1 An irrigation pump connected to a web---to---wireless controller designed by M2M Communications. Agricultural Demand Response Program in...

492

Biomedical Studies  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Biomedical Studies AMS as a Tool in the Biological Sciences Radioisotope labeling has been an important tool in the biological sciences and will continue to be used for many...

493

Using orbital altimetry and ocean color to characterize habitat of sperm whales in the Gulf of Mexico  

E-Print Network [OSTI]

On Mesoscale Population Study cruises during summers 2004 and 2005 aboard the sailboat Summer Breeze, researchers from the Sperm Whale Seismic Study (SWSS) surveyed for sperm whales along the continental slope of the northern Gulf of Mexico. SWSS...

O'Hern, Julia Elizabeth

2009-05-15T23:59:59.000Z

494

Wind Regimes in Complex Terrain of the Great Valley of Eastern Tennessee  

SciTech Connect (OSTI)

This research was designed to provide an understanding of physical wind mechanisms within the complex terrain of the Great Valley of Eastern Tennessee to assess the impacts of regional air flow with regard to synoptic and mesoscale weather changes, wind direction shifts, and air quality. Meteorological data from 2008 2009 were analyzed from 13 meteorological sites along with associated upper level data. Up to 15 ancillary sites were used for reference. Two-step complete linkage and K-means cluster analyses, synoptic weather studies, and ambient meteorological comparisons were performed to generate hourly wind classifications. These wind regimes revealed seasonal variations of underlying physical wind mechanisms (forced channeled, vertically coupled, pressure-driven, and thermally-driven winds). Synoptic and ambient meteorological analysis (mixing depth, pressure gradient, pressure gradient ratio, atmospheric and surface stability) suggested up to 93% accuracy for the clustered results. Probabilistic prediction schemes of wind flow and wind class change were developed through characterization of flow change data and wind class succession. Data analysis revealed that wind flow in the Great Valley was dominated by forced channeled winds (45 67%) and vertically coupled flow (22 38%). Down-valley pressure-driven and thermally-driven winds also played significant roles (0 17% and 2 20%, respectively), usually accompanied by convergent wind patterns (15 20%) and large wind direction shifts, especially in the Central/Upper Great Valley. The behavior of most wind regimes was associated with detectable pressure differences between the Lower and Upper Great Valley. Mixing depth and synoptic pressure gradients were significant contributors to wind pattern behavior. Up to 15 wind classes and 10 sub-classes were identified in the Central Great Valley with 67 joined classes for the Great Valley at-large. Two-thirds of Great Valley at-large flow was defined by 12 classes. Winds flowed on-axis only 40% of the time. The Great Smoky Mountains helped create down-valley pressure-driven winds, downslope mountain breezes, and divergent air flow. The Cumberland Mountains and Plateau were associated with wind speed reductions in the Central Great Valley, Emory Gap Flow, weak thermally-driven winds, and northwesterly down sloping. Ridge-and-valley terrain enhanced wind direction reversals, pressure-driven winds, as well as locally and regionally produced thermally-driven flow.

Birdwell, Kevin R [ORNL

2011-05-01T23:59:59.000Z

495

VALUE STUDY  

Broader source: Energy.gov (indexed) [DOE]

PREPARED FOR: DEPARTMENT OF ENERGY OFFICE OF CONTRACT RESOURCES AND RESOURCE MANAGEMENT SEPTEMBER 2008 UPDATE BY: AON CONSULTING INC. FEBRUARY 1999 UPDATED SEPTEMBER 29, 2008 VALUE STUDY DESK MANUAL Prepared for: DEPARTMENT OF ENERGY By: BUCK CONSULTANTS Under DE-AC01-96AD38107 Update Prepared for: DOE By: AON CONSULTING, INC. Under Delivery Order DE-BP01-08MA345678, Contract No. DE-AB01-08-ME11881 Contents PART I Overview of Value Study Illustrative Flow Charts...................................................................................................................................... 1 1. Purpose................................................................................................................................................... 4

496

Overview of URBAN 2000: A Multiscale Field Study of Dispersion through an Urban Environment  

Science Journals Connector (OSTI)

A major urban tracer and meteorological field campaign (URBAN 2000) was conducted in Salt Lake City, Utah, during October 2000. Sponsored by the U.S. Department of Energy's (DOE's) Chemical and Biological National Security Program, the month-long ...

K. J. Allwine; J. H. Shinn; G. E. Streit; K. L. Clawson; M. Brown

2002-04-01T23:59:59.000Z

497

An Online Coupled Two Way Interactive Modelling Study of Air Pollution Over Europe and Mediterranean  

Science Journals Connector (OSTI)

During the last decade, the efforts in the field of atmospheric modeling have been directed towards a joint online approach of the meteorological and chemical processes in order to treat, in an integrated way, ...

Jonilda Kushta; Stavros Solomos

2014-01-01T23:59:59.000Z

498

Solar Radiation and Pyranometry Studies for Solar Energy Applications: an Overview of IEA Task IX  

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With increased activity in the field of solar energy research and application, there is a need for accurate solar radiation and meteorological data to aid in resource assessment, solar system design evaluation, a...

D. C. McKay

1984-01-01T23:59:59.000Z

499

TURBULENT HEAT FLUXES ABOVE A SUBURBAN RESERVOIR A CASE STUDY FROM GERMANY  

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With the objective of quantifying turbulent sensible (QH) and latent (QE) heat fluxes above a suburban reservoir, a micro-meteorological turbulence measurement campaign using the eddy-covariance technique was carried out between June and November ...

Anja Goldbach; Wilhelm Kuttler

500

A Study of Satellite-derived Moisture with Emphasis on the Gulf of Mexico  

Science Journals Connector (OSTI)

Visible-Infrared Spin Scan Radiometer (VISSR) Atmospheric Sounder (VAS) moisture retrievals are compared to the National Meteorological Center Regional Analysis and Forecast System (RAFS) 12-h forecast and to 1200 UTC rawinsondes over the United ...

Anthony J. Schreiner; Christopher M. Hayden; Cecil A. Paris

1992-07-01T23:59:59.000Z