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Note: This page contains sample records for the topic "annual arm science" from the National Library of EnergyBeta (NLEBeta).
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1

ARM - Past ARM Science Team Meetings  

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govSciencePast ARM Science Team Meetings Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) User Meetings Second Annual...

2

ARM - ARM Science Board  

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Science Board Board Business About Become a User Recovery Act Mission FAQ History Organization Participants Facility Statistics Forms Contacts Facility Documents ARM Management...

3

ARM - Science  

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Read about the 20 years of accomplishments (PDF, 696KB) from the ARM Program and user facility. Performance Metrics ASR Metrics 2009 2008 2007 2006 Science New C-band...

4

Instrumentation Overview ARM Climate Research Facility 18th Annual...  

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Overview ARM Climate Research Facility 18th Annual ARM Science Team Meeting Jimmy Voyles Voyles STM.2008 Presentation Outline Voyles STM.2008 Presentation Outline * Program Science...

5

ARM - Key Science Questions  

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govScienceKey Science Questions govScienceKey Science Questions Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) ARM Science Team Meetings User Meetings Annual Meetings of the Atmospheric System Research (ASR) Science Team and Fall Working Groups Accomplishments Read about the 20 years of accomplishments (PDF, 696KB) from the ARM Program and user facility. Performance Metrics ASR Metrics 2009 2008 2007 2006 Key Science Questions The role of clouds and water vapor in climate change is not well understood; yet water vapor is the largest greenhouse gas and directly affects cloud cover and the propagation of radiant energy. In fact, there may be positive feedback between water vapor and other greenhouse gases. Carbon dioxide and other gases from human activities slightly warm the

6

ARM - 2003 ARM Science Team Meeting  

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3 ARM Science Team Meeting 2003 Meeting 2003 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Meeting Archives ARM Science Team Meeting Proceedings Past...

7

ARM - 2000 ARM Science Team Meeting  

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0 ARM Science Team Meeting 0 ARM Science Team Meeting 2000 Meeting 2000 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 2000 ARM Science Team Meeting March 13 - 17 | San Antonio, Texas | St. Anthony Hotel & The Municipal Auditorium St. Anthony Hotel provided rooms along with the Municipal Auditorium for the 2000 ARM Science Team Meeting. St. Anthony Hotel provided rooms along with the Municipal Auditorium for the 2000 ARM Science Team Meeting. The tenth ARM Science Team Meeting was held in San Antonio, Texas. The Science Team Meetings were intended to provide opportunities to share scientific findings, focused technical exchanges, and collectively examine the implementation and operation of ARM.

8

ARM - 1997 ARM Science Team Meeting  

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7 ARM Science Team Meeting 7 ARM Science Team Meeting 1997 Meeting 1997 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 1997 ARM Science Team Meeting March 3 -7 | San Antonio, Texas | St. Anthony Hotel & Municipal Auditorium The St. Anthony Hotel as well as the Municipal Auditorium and Conference Center provided rooms and meeting space. The St. Anthony Hotel as well as the Municipal Auditorium and Conference Center provided rooms and meeting space. The seventh ARM Science Team Meeting was held in San Antonio, Texas. This year the ARM Science Team Meeting and the Computer Hardware, Advanced Mathematics and Model Physics (CHAMMP) science team meetings were held jointly. The Science Team Meetings were intended to provide opportunities

9

ARM Science Plan  

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ER-ARM-0402 ER-ARM-0402 Atmospheric Radiation Measurement Program Science Plan Current Status and Future Directions of the ARM Science Program Thomas P. Ackerman, Lead Author Anthony D. Del Genio Gregory M. McFarquhar Robert G. Ellingson Peter J. Lamb Richard A. Ferrare Charles N. Long Steve A. Klein Johannes Verlinde October 2004 United States Department of Energy Office of Science, Office of Biological and Environmental Research Executive Summary The Atmospheric Radiation Measurement (ARM) Program has matured into one of the key programs in the U.S. Climate Change Science Program. The ARM Program has achieved considerable scientific success in a broad range of activities, including site and instrument development, atmospheric radiative

10

ARM - 2007 ARM Science Team Meeting  

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ACRF Infrastructure staff members attended the Seventeenth ARM Science Team Meeting in Monterey, California, from March 26-30, 2007. Dr. Kiran Alapaty, who was appointed as the...

11

ARM - SGP Science  

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Science Science SGP Related Links Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Fact Sheet Images Information for Guest Scientists Contacts SGP Science Overall Objectives The primary goal of the Southern Great Plains (SGP) site is to produce data adequate to support significant research addressing the objectives of the overall ARM Climate Research Facility. These overall objectives, as paraphrased from the ARM Program Plan (DOE 1990), are the following: to describe the radiative energy flux profile of the clear and cloudy atmosphere to understand the processes determining the flux profile

12

ARM - 1996 ARM Science Team Meeting  

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6 ARM Science Team Meeting 6 ARM Science Team Meeting 1996 Meeting 1996 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 1996 ARM Science Team Meeting March 4 - 7 | San Antonio, Texas | Municipal Auditorium The St. Anthony Hotel, as well as the Municipal Auditorium and Conference Center, provided rooms and meeting space. The St. Anthony Hotel, as well as the Municipal Auditorium and Conference Center, provided rooms and meeting space. The fifth ARM Science Team Meeting was held in San Antonio, Texas, at the Municipal Auditorium and Conference Center. The Science Team Meetings were intended to provide opportunities to share scientific findings, focused technical exchanges, and collectively examine the implementation and

13

ARM - 2006 ARM Science Team Meeting  

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Meeting Meeting 2006 Meeting 2006 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Posters Presentations Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 2006 ARM Science Team Meeting March 27-18 | Albuquerque, New Mexico | Hyatt Regency Albuquerque The Hyatt Regency - Albequerque The Hyatt Regency - Albequerque Meeting Highlights Just over 300 ARM scientists and ACRF infrastructure staff took part in the 16th ARM Science Team meeting held in Albuquerque, New Mexico, on March 27-31, 2006. After an initial day of focused meetings among the ARM Working Groups, Dr. David Thomassen, Acting Associate Director of DOE's Office of Biological and Environmental Research (BER), opened the meeting's plenary session with remarks about the role of ARM within the DOE, and its

14

ARM - Selected Science Team Proposals - FY 1995  

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5 5 Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) ARM Science Team Meetings User Meetings Annual Meetings of the Atmospheric System Research (ASR) Science Team and Fall Working Groups Accomplishments Read about the 20 years of accomplishments (PDF, 696KB) from the ARM Program and user facility. Performance Metrics ASR Metrics 2009 2008 2007 2006 Selected Science Team Proposals - FY 1995 Dr. R. Nelson Byrne, SAIC: "Evolution of a New GCM-Capable Stochastic Cloud/Radiation Parameterization Using ARM Data - Phase II" Dr. Steven J. Ghan, Pacific Northwest National Laboratory: "Parameterization of Convective Cloud Coverage in GCMs" Dr. George Golitsyn, Russian Academy of Sciences, Institute of

15

ARM - TWP Science  

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PacificTWP Science PacificTWP Science TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts TWP Science New VSAT dish installed in the Tropical Western Pacific. New VSAT dish installed in the Tropical Western Pacific. The following are the basic science goals of the TWP component of the ARM Climate Research Facility: Determine the magnitude of the surface radiation budget terms and determine their spatial and temporal variability. Identify bulk and optical properties of clouds in the TWP and how these properties affect the radiation budget. Understand the linkages among sea surface temperature,

16

ARM - Publications: Science Team Meeting Documents  

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Comparison of Daily Broadband Surface Albedos Measured at Six Extended Comparison of Daily Broadband Surface Albedos Measured at Six Extended Facilities in the ARM Southern Great Plains Cloud and Radiation Testbed Hamm, K.G., University of Oklahoma Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting An analysis of time series of daily hemispherical broadband surface albedo for 1998-1999 from six ARM Extended Facilities has been performed. The results show that the mean annual albedo differs by as much as 30% among the six sites. The annual range of daily albedos also varies among the sites. For example, albedos measured at the tallgrass prairie near Pawhuska, OK show a range of daily albedo between 0.15 and 0.20 for 1998, while daily albedos measured at a grazed pasture near Cordell, OK for the same time period have a range between 0.17 and 0.24 (or 40% higher than at

17

ARM - Publications: Science Team Meeting Documents  

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Measurements at the DOE ARM NSA Site Dong, X. and Mace, G.G., University of Utah Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The Arctic plays...

18

ARM - Publications: Science Team Meeting Documents  

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Radiation Measurement (ARM) Science Team Meeting With the complement of active and passive remote sensors at the four sites, the ARM program has generated (and continues to...

19

ARM - Publications: Science Team Meeting Documents  

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NREL Pyrheliometer Comparisons - 2002 NREL Pyrheliometer Comparisons - 2002 Reda, I. and Stoffel, T.L., National Renewable Energy Laboratory Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting All broadband shortwave radiometers used by the ARM Program are calibrated with absolute cavity radiometers traceable to the World Radiometric Reference (WRR). The WRR was developed and is maintained by the World Radiation Center under the auspices of the World Meteorological Organization. Each fall, the National Renewable Energy Laboratory (NREL) hosts annual comparisons of absolute cavity radiometers at the Solar Radiation Research Laboratory in Golden, Colorado. Since 1995, NREL has maintained the Transfer Standard Group (TSG) consisting of five radiometers belonging to NREL and the ARM Program. Our poster summarizes the results of

20

ARM - NSA Science  

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AlaskaNSA Science AlaskaNSA Science NSA Related Links Facilities and Instruments Barrow Atqasuk ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Images Information for Guest Scientists Contacts NSA Science Scientific objectives for the NSA/AAO site are provided below: Provide the comprehensive data sets necessary to develop and test continually improved algorithms for GCMs to describe radiative transfer and cloud processes at high latitudes; Specifically focus on development of algorithms to describe: radiative transfer within both the clear and cloudy atmosphere, especially at low temperatures; physical and optical behavior of water (ice) and land surfaces, both bare and snow-covered, especially during transitions from winter to summer and back; physical and optical behavior of ice and mixed phase clouds.

Note: This page contains sample records for the topic "annual arm science" 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

ARM - AMF Science Questions  

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AzoresAMF AzoresAMF Science Questions Azores Deployment AMF Home Graciosa Island Home Data Plots and Baseline Instruments Satellite Retrievals Experiment Planning CAP-MBL Proposal Abstract and Related Campaigns Science Questions Science Plan (PDF, 4.4M) Rob Wood Website Outreach Backgrounders English Version (PDF, 363K) Portuguese Version (PDF, 327K) AMF Posters, 2009 English Version Portuguese Version Education Flyers English Version Portuguese Version News Campaign Images AMF Science Questions Which synoptic-scale features dominate the variability in subtropical low clouds on diurnal to seasonal timescales over the NEA? Do physical, optical, and cloud-forming properties of aerosols vary with these synoptic features? How well can state-of-the-art weather forecast and climate models (run in forecast mode) predict the day-to-day variability of

22

ARM - Publications: Science Team Meeting Documents  

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Min, Q., and Michalsky, J. J., Atmospheric Sciences Research Inst., State University of New York at Albany Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting We...

23

ARM - Publications: Science Team Meeting Documents  

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Simulation of the Annual Cycle of Surface Albedo for SHEBA Simulation of the Annual Cycle of Surface Albedo for SHEBA Schramm, J.L., and Curry, J.A., University of Colorado Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting A single-column ice thickness distribution model is used to simulate the annual cycle of sea ice, snow and surface radiation characteristics over the Surface Heat Budget of the Arctic Ocean (SHEBA). The model is forced using surface flux data obtained at SHEBA. This poster focuses on the simulated surface albedo and the principal factors that determine it (snow and melt ponds). By comparing the model simulations with SHEBA observations, an assessment of our current parameterizations of snow, melt ponds and surface albedo is given. Some improvements to our model parameterizations have already been made based upon the comparison with

24

ARM - Publications: Science Team Meeting Documents  

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Winter Surface Radiative Energy Exchange at NSA: Cloudy vs. Clear Sky Winter Surface Radiative Energy Exchange at NSA: Cloudy vs. Clear Sky Stramler, K.(a), Del Genio, A.D.(b), and Rossow, W.(b), Columbia University (a), NASA/GISS (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM measurements at Point Barrow, Alaska show that atmospheric emission drives the winter variability of the surface radiative energy exchange, as the incursion of air masses of differing properties alternately warm and cool the snow surface and the snow-ground interface. The magnitude of the surface radiative energy exchange, however, appears to be in part dictated by the more slowly varying sub-surface temperatures. This is most evident when observing the inter-annual variability of clear-sky surface net longwave radiation at NSA; winter cloudy-sky surface net longwave radiation

25

ARM - Publications: Science Team Meeting Documents  

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Properties Over the North Slope of Alaska: A Comparison of Properties Over the North Slope of Alaska: A Comparison of Ground-Based and Space-Based Retrievals Storvold, R.(a), Marty, C.(a), Xiong, X.(b), Stamnes, K.H.(c), and Zak, B.D.(d), University of Alaska Fairbanks (a), QSS group Inc. (b), Stevens Institute of Technology (c), Sandia National Laboratories (d) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting In the Arctic there is a large seasonal variability in cloud cover, cloud base height, and cloud liquid water content. Cloud properties above the ARM/NSA CART site in Barrow are retrieved using a suite of different instruments and retrieval techniques. Daily and monthly averages of the cloud properties are derived for a full annual cycle using data from LIDAR, Whole Sky Imager, Cloud Radar, Micro Wave Radiometer, and Broadband

26

ARM - 2006 Science Team Meeting Presentations  

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Presentations Presentations 2006 Meeting 2006 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Posters Presentations Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 2006 Science Team Meeting Presentations Monday, March 27, 2006 ARM Orientation for New and Current PIs: Overview and History Warren Wiscombe (PDF, 6 MB) ARM Orientation for New and Current PIs: Infrastructure Overview 2006 Jimmy Voyles (PDF, 4MB) ARM Orientation for New and Current PIs: An Incomplete Introduction to ACRF Instrumentation Jim Liljegren (PDF, 4MB) ARM Orientation for New and Current PIs: ARM Data Quality Office - Real-Time Assessment of ARM Data Randy Peppler (PDF, 12MB) ARM Orientation for New and Current PIs: Getting Data from the ARM Archive

27

ARM - Publications: Science Team Meeting Documents  

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MOD06 Cloud Products and the ARM SGP Zhang, Y.(a) and Mace, G.G.(b), University of Utah (a), University of Utah (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science...

28

ARM - Publications: Science Team Meeting Documents  

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A WWW-Staged Prototype ARM Database Utility Mace, G.G. and Hudach, D., University of Utah Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Counting from when...

29

ARM - Publications: Science Team Meeting Documents  

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The ARM-UAV Grand Tour, SGP, NSA, TWP Tooman, T.T., Bolton, W.B.(a), and McCoy, R.F.(a), Sandia National Laboratories (a) Thirteenth Atmospheric Radiation Measurement (ARM) Science...

30

ARM - Publications: Science Team Meeting Documents  

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Long-Period Variations of UV-B Radiation From Results of Ozone Long-Period Variations of UV-B Radiation From Results of Ozone Reconstruction from Dendrochronologic Data Zuev, V.V. and Bondarenko, S.L., Institute of Atmospheric Optics Russian Academy of Sciences Tomsk, Russia Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The thickness of stratospheric ozone layer modulates the level of UV-B radiation reaching the surface without cloudiness. The high level of UV-B radiation causes a stress of vegetation including trees. The stress-induced changes in physiologic processes are reflected in tree ring characteristics. The multi-centennial history of ozonosphere behavior is contained in annual tree rings on the basis of response to UV-B radiation effect. The dendrochronologic time series are statistically representative,

31

ARM - Publications: Science Team Meeting Documents  

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Turbulence Properties Derived from MMCR Doppler Moments Mace, G. G., University of Utah Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting We are developing an...

32

ARM - Publications: Science Team Meeting Documents  

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Factors Vernon, E.N. and Mace, G.G., Department of Meteorology, Unviversity of Utah Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The extensive...

33

ARM - Publications: Science Team Meeting Documents  

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Millimeter Radar and Microwave Radiometer Data Dong, X. and Mace, G.G., University of Utah Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A new algorithm...

34

ARM - Publications: Science Team Meeting Documents  

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Cloud Mask Products (MOD35) with MMCR Data Zhang, Q. and Mace, G.G., University of Utah Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The...

35

ARM - Publications: Science Team Meeting Documents  

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of Cases Sampled During the 2000 Cloud IOP Sonntag, K. and Mace, G.G., University of Utah Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Quantities...

36

ARM - Publications: Science Team Meeting Documents  

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of Cirrus Cloud Property Retrieval Algorithms Mace, G.G. and Zhang, Y., University of Utah Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The problem of...

37

ARM - Publications: Science Team Meeting Documents  

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Ackerman, T.P.(a), and Clothiaux, E.E.(b), Pacific Northwest National Laboratory (a), The Pennsylvania State University (b) Twelfth Atmospheric Radiation Measurement (ARM) Science...

38

ARM - Publications: Science Team Meeting Documents  

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NASAGoddard Space Flight Center Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting This is a status report for the "International Intercomparison of...

39

ARM - Publications: Science Team Meeting Documents  

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M.J., Brookhaven National Laboratory Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Brookhaven National Laboratory has developed a shipboard radiation...

40

ARM - Publications: Science Team Meeting Documents  

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Northwest National Laboratory (e) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Aerosol influences on shortwave radiation are substantial locally and...

Note: This page contains sample records for the topic "annual arm science" 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

ARM - Publications: Science Team Meeting Documents  

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Cloud Optical Depth Retrievals DeSlover, D.H. and Knuteson, R.O., University of Wisconsin - Madison Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Data...

42

ARM - Selected Science Team Proposals - FY 2000  

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Codes) Applied to ARM and Landsat Retrievals" Dr. Robert D. Cess, State University of New York, Stony Brook: "Science Team Participation in the Atmospheric Radiation...

43

ARM - Publications: Science Team Meeting Documents  

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Radiation Measurement (ARM) Science Team Meeting A retrieval method of photon pathlength distribution using Rotating Shadowband Spectroradiometer (RSS) measurements in the oxygen...

44

ARM - Publications: Science Team Meeting Documents  

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Radiation Measurement (ARM) Science Team Meeting The Desert Research Institute (DRI) instantaneous cloud condensation nuclei (CCN) spectrometer and a 3010 TSI CN counter...

45

ARM - Publications: Science Team Meeting Documents  

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Model for Vector (Polarized) Radiative Transfer Min, Q. and Duan, M., State University of New York at Albany Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting...

46

ARM - Publications: Science Team Meeting Documents  

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Y., Hampton University; Morcrette, J.-J., European Centre for Medium-Range Weather Forecasting Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Data over the...

47

ARM - Publications: Science Team Meeting Documents  

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(ARM) Science Team Meeting Anthony Davis and Alexander Marshak have spearheaded a book proposal to Springer-Verlag on 3D radiative transfer in cloud layers and cloudy...

48

ARM - Publications: Science Team Meeting Documents  

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Measurement (ARM) Science Team Meeting Black carbon (BC), the predominant source of solar absorption in atmospheric aerosol, can be present therein as pure BC particles distinct...

49

ARM - Publications: Science Team Meeting Documents  

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Calculation of Forcing by Carbonaceous Aerosols Penner, J.E., Zhang, S., and Chuang, C., University of Michigan Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting...

50

ARM - Publications: Science Team Meeting Documents  

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Radiation Measurement (ARM) Science Team Meeting Satellite measurements using passive sensors are more accurate in measuring cloud tops than cloud bases especially in...

51

ARM - Publications: Science Team Meeting Documents  

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Measurement (ARM) Science Team Meeting Measurements by airborne cloud radar and passive instruments such as the CSU Scanning Spectral Polarimeter (SSP) during the recent...

52

ARM - Publications: Science Team Meeting Documents  

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New Parameterization of Droplet Nucleation Penner, J.E. and Chen, Y., University of Michigan Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Several...

53

ARM - Publications: Science Team Meeting Documents: Using ARM data to  

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Using ARM data to evaluate the dependence of surface downward longwave Using ARM data to evaluate the dependence of surface downward longwave radiation on near-surface temperature and water vapour path, in both ARM observations and the Met Office NWP model. Henderson, Peter Environmental Systems Science Centre Slingo, Anthony Environmental Systems Science Centre In this work, we continue our comparisons between ARM data and simulations from the UK Met Office Numerical Weather Prediction (NWP) model. The present analysis focuses on the variables that control the downwelling longwave radiation at the surface, in particular the column water vapour and near-surface temperature. Water vapour is both a source and a sink of latent heat, is an active modulator of atmospheric radiative transfer and therefore influences both the general circulation and the global energy

54

ARM - 2006 Science Team Meeting Pictures  

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Pictures Pictures 2006 Meeting 2006 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Posters Presentations Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 2006 Science Team Meeting Pictures Photos ARM Chief Scientist Warren Wiscombe presents "The ARM Chief Scientist Report" during Tuesday morning's plenary session. The Instantaneous Radiative Flux (IRF) Working Group report is presented at Tuesday morning's plenary session. Dr. David Thomassen, Acting Associate Director of DOE's Office of Biological and Environmental Research, attended this year's ARM Science Team Meeting. Meeting attendees listen at the morning plenary session. Rick Petty engages in a discussion after the plenary session. The ARM Science Team meeting allows scientists to collaborate and share their data and research.

55

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Cloud Radiative Forcing of the Arctic Surface: The Influence of Cloud Cloud Radiative Forcing of the Arctic Surface: The Influence of Cloud Properties, Surface Albedo, and Solar Zenith Angle Shupe, M.D. and Intrieri, J.M., NOAA - Environmental Technology Laboratory Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting An annual cycle of cloud and radiation measurements made as part of the Surface Heat Budget of the Arctic program are utilized to determine which properties of Arctic clouds control the surface radiation balance. Surface cloud radiative forcing (CF), defined as the difference between the all-sky net surface radiative flux and the clear sky net surface flux, was calculated from measurements of broadband fluxes and results from a clear sky model. Longwave cloud forcing (CFLW) is shown to be a function of cloud

56

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

8 Science Team Meeting 8 Science Team Meeting 1998 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-1998, March 1998 Tucson, Arizona For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). History and Status of the ARM Program - March 1998 Session Papers A Cloud Climatology of the ARM CART Site S.M. Lazarus, S.K. Krueger, and G.G. Mace A Combination of the Separation of Variable and the T-Matrix Method for Computing Optical Properties of Spheroidal Particles*

57

ARM - Publications: Science Team Meeting Documents  

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Cloud Layer Thickness and Temperature Vernon, E.N.(a) and Mace, G.G.(b), University of Utah (a), University of Utah (b) Twelfth Atmospheric Radiation Measurement (ARM) Science...

58

ARM - Publications: Science Team Meeting Documents  

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R.H.(a), and Papakyriakou, T.N.(b), University of Miami, RSMAS (a), University of Manitoba, CEOS (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting As...

59

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Instrumentation for the AMR-UAV Payload McCoy, R.F., Tooman, T.T., and Bolton, W.B., Sandia National Laboratories Thirteenth Atmospheric Radiation Measurement (ARM) Science Team...

60

ARM - Science Team Meeting Proceedings  

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Publishing Procedures Acronyms Glossary Logos Contacts RSS for Publications Science Team Meeting Proceedings Science Team Meeting Proceedings Note: For proper viewing,...

Note: This page contains sample records for the topic "annual arm science" 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

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Cloud and Radiative Properties Derived Over the ARM NSA Domain From AVHRR Cloud and Radiative Properties Derived Over the ARM NSA Domain From AVHRR Data Heck, P.W., Nguyen, L., Smith, W. L., Jr., Ayers, J.K., Doelling, D.R., and Spangenberg, D.A., Analytical Services and Materials, Inc.; Minnis, P., and Young, D.F., National Aeronautics and Space Administration-Langley Research Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Radiation Measurement (ARM) Program's polar sites on the North Slope of Alaska (NSA) measure time series of various atmospheric, cloud and radiative properties over a few selected areas. Satellite data are needed to provide measurements of similar properties between the sites and to estimate the radiation budget at the top of the atmosphere. Over the other ARM sites in the central United States and the Pacific, geostationary

62

ARM - Publications: Science Team Meeting Documents  

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Evaluation of Terra Aerosol and Water Vapor Measurements Using ARM SGP Data Evaluation of Terra Aerosol and Water Vapor Measurements Using ARM SGP Data Ferrare, R.A.(a), Brasseur, L.H.(b), Clayton, M.B.(b), Turner, D.D.(c), Remer, L.(d), and Gao, B.C.(e), NASA Langley (a), SAIC (b), Pacific Northwest National Laboratory (c), NASA Goddard (d), Naval Research Laboratory (e) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Measurements from the Department of Energy Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) site are used to evaluate atmospheric measurements derived from NASA's Moderate-Resolution Imaging Spectroradiometer (MODIS) and Multiangle Imaging Spectroradiometer (MISR) sensors on board the Terra satellite. MODIS and MISR AOT retrievals are evaluated using ARM SGP Cimel Sun photometer and MultiFilter Rotating

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ARM - Publications: Science Team Meeting Documents  

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Evaluation of Simulated Clouds in the Community Atmospheric Model (CAM2): Evaluation of Simulated Clouds in the Community Atmospheric Model (CAM2): Over the Globe and at the ARM Site Zhang, M.H.(a) and Lin, W.Y.(a), Stony Brook University Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting We first compare seasonal climatology of the global distribution of ISCCP-type clouds in the NCAR CAM2 with observations from ISCCP. Model deficiencies in simulated clouds are highlighted. Model capability of simulating the observed response of different cloud types to ENSO is also discussed. We then use ARM cloud measurements at the ARM SGP to compare with the CAM cloud statistics at the same site. It is shown that several model deficiencies in the global cloud distribution are also present at the ARM site. Relevance of these model deficiencies to the interpretation of

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ARM - Publications: Science Team Meeting Documents  

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Characterizing and Filling Temporal and Spatial Gaps in Time-Aggregated ARM Characterizing and Filling Temporal and Spatial Gaps in Time-Aggregated ARM Measurements for Use in Carbon Models Hargrove, W.W.(a), Brandt, C.C.(a), Jager, H.I.(a), Hanan, N.(b), and McCord, R.A.(a), Oak Ridge National Laboratory (ORNL)(a), Natural Resource Ecology Laboratory (NREL)(b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Data gaps limit the use of ARM data as input for simulation models. Because the ARM program records actual measurements, circumstances unavoidably arise when instrument and storage failures create gaps in the temporal stream of measurements. Most temporal gaps are short in duration and affect only one or a few related parameters. However, some rare failures, such as wide-area power outages or ice storms, occasionally affect many measurement

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ARM - Publications: Science Team Meeting Documents  

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Three-Dimensional Radiative Transfer Computations to Complement the ARM Three-Dimensional Radiative Transfer Computations to Complement the ARM Broadband Heating Rate Profile (BBHRP) Value Added Product (VAP) OHirok, W.(a), Gautier, C.(a), and Miller, M.A.(b), University of California, Santa Barbara (a), Brookhaven National Laboratory (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A core programmatic goal of ARM is to understand how cloud variability is associated with radiative flux variability. A major effort among the ARM working groups is now underway to produce the Broadband Heating Rate Profile (BBHRP) Value Added Product (VAP). The heating rate profiles are derived from Rapid Radiative Transfer Models (RRTMs) that use best estimates of cloud characteristics, gaseous profiles, aerosols and surface

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ARM - Publications: Science Team Meeting Documents  

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Physical Retrieval of PWV and CLW with MonoRTM Using ARM MWR Data Physical Retrieval of PWV and CLW with MonoRTM Using ARM MWR Data Clough, S.A.(a), Cady-Pereira, K.(a), Boukabara, S.(a), and Liljegren, J.C.(b), Atmospheric and Environmental Research, Inc. (a), Argonne National Laboratory (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The newly developed radiative transfer model, MonoRTM, has been utilized as the forward model in a physical retrieval method to obtain Precipitable Water Vapor (PWV) and Cloud Liquid Water (CLW) using ARM MWR data. The dependence of the forward model on water vapor and oxygen has been carefully analyzed in the context of the ARM dataset covering a three-year period from 1996 to 1998. A detailed error analysis for the forward model brightness temperatures at 23.8 GHz and 31.4 GHz has been has been

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ARM - Publications: Science Team Meeting Documents  

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Comparisons of a Cloud Resolving Model and ARM Data Comparisons of a Cloud Resolving Model and ARM Data Posselt, D., Mecikalski, J., Tanamachi, R., Feltz, W.F., Turner, D.D., Tobin, D., Knuteson, R.O., and Revercomb, H.E., University of Wisconsin - Madison Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting CIMSS/SSEC at the University of Wisconsin is currently running version 3.5 of the PSU/NCAR MM5 once per day at a resolution of 4 km over the ARM CART site domain. Simulations are performed using a sophisticated cloud-resolving microphysics scheme (Reisner 1998) and a radiative parameterization based on RRTM (Mlawer 1997). With selection of appropriate case studies, comparisons of the model output to ARM data can be used to evaluate the model's ability to reproduce boundary-layer thermal and

68

ARM - Publications: Science Team Meeting Documents  

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Improved Retrieval Of Cloud Liquid Water Path For ARM Microwave Improved Retrieval Of Cloud Liquid Water Path For ARM Microwave Radiometers Liljegren, J.C., Ames Laboratory Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Radiation Measurement (ARM) Program has deployed dual-frequency microwave water radiometers (MWRs) at its Cloud and Radiation Testbed (CART) sites in the U. S. Southern Great Plains (SGP), the Tropical Western Pacific (TWP), and the North Slope of Alaska/Adjacent Arctic Ocean (NSA/AAO). Although the integrated water vapor amount provided by these instruments has enjoyed increasing application, the primary purpose of these instruments has been to provide measurements of the integrated liquid water path in clouds. The liquid water path measurements have been widely used by ARM investigators to test cloud life cycle

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ARM - Publications: Science Team Meeting Documents  

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ARM External Data: Recent Developments and Future Plans ARM External Data: Recent Developments and Future Plans Wagener, R., Gregory, L., Ma, L.L., and Cialella, A., Brookhaven National Laboratory Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting This poster lists new datastreams collected and processed by the ARM External Data Center since the last update in 1999 (MOLTS, TOMS, 30 min OK Mesonet, CSPHOT, TWP AVHRR, ECMWF, RUC, TAO Buoy, IAP). We describe briefly the software tools employed in converting these data to netCDF files, because data-users might find them helpful in dealing with the raw files themselves (GrADS, IDL, Perl). The priorities for future data acquisitions and ingests are set by consensus of the Science Working Groups. The current high priority new collections include: Suominet GPS data, Darwin Radar and

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ARM - Publications: Science Team Meeting Documents  

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Initial Measurements from the Compact Millimeter-Wave Radar Initial Measurements from the Compact Millimeter-Wave Radar Roman-Nieves, J.(a), Sekelsky, S.M.(a), Tooman, T.T.(b), and Bolton, W.B.(b), University of Massachusetts at Amherst (a), Sandia National Laboratories (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The University of Massachusetts at Amherst has developed a solid state compact 95 GHz millimeter-wave radar (CMR) for the ARM Unmanned Aerospace Vehicle (UAV) program. CMR has recently flown in ARM-UAV sponsored engineering flights and a cirrus science mission flying aboard the NASA Proteus aircraft. This poster presents the final CMR hardware configuration and results from ground-based and airborne engineering measurements. In addition we show airborne measurements form from the ARM-UAV 2002 Cirrus

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ARM - Publications: Science Team Meeting Documents  

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The ARM Blue/Green Period: 3-Channel Color Composites of GOES-8 Data The ARM Blue/Green Period: 3-Channel Color Composites of GOES-8 Data Wagener, R., and Gregory, L., Brookhaven National Laboratory, ARM External Data Center Konidaris, N., Carnegie Mellon University; Minnett, P.J., University of Miami, Rosenstiel School of Marine and Atmospheric Sciences Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Despite the title and the general appearance of the resulting images, this is not an attempt to emulate art nor an expression of anybody's mood. It is simply an attempt to condense as much information as possible about a day's worth of Geostationary Operational Environmental Satellite (GOES) data onto a single web page. A 24-bit red, green, blue (RGB) color composite is derived by assigning the reflectivity in the GOES-8 visible channel to red,

72

ARM - 2009 Science Team Meeting Presentations  

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Presentations Presentations 2009 Meeting 2009 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Posters Presentations Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 2009 Science Team Meeting Presentations Monday, March 30, 2009 ARM Orientation for New and Current PIs Chief Scientist's Perspective (PDF, 3,362K) Warren Wiscombe ARM Instruments (PDF, 1,828K) Jimmy Voyles Infrastructure (PDF, 607K) Jim Mather How to Get Data (PDF, 9,307) Raymond McCord Working Group Sessions Radiative Properties Working Group 2009 Breakout Session Agenda (PDF, 36K) Dave Turner Radiative Constraints in Tropical Upper Troposphere and Lower Stratosphere (PDF, 281K) Qiang Fu Ground-Based Microwave Cloud Tomography Experiment (PDF, 597K) Dong Huang

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ARM Orientation: Overview and History  

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- two papersyr per grant (average) - at least one science highlight per year - annual RIMS progress report Mar 2009 ARM Orientation 7 ARM also expects you to participate...

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ARM - Publications: Science Team Meeting Documents  

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Using ARM Measurements to Evaluate and Improve the Turbulent Boundary-Layer Using ARM Measurements to Evaluate and Improve the Turbulent Boundary-Layer Parameterization in the CCM Zhang, M.H. (a) and Yu, R.C. (a), State University of New York(a) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Three-Dimensional advective tendencies at the Atmospheric Radiation Measurement (ARM) Program Southern Great Plains (SGP) site, together with diurnal variation of the clear-sky boundary layer atmosphere temperature and moisture, are used to study the down-gradient and "non-local" turbulent transport of heat and moisture in the atmospheric boundary layer. The observational results are then used to evaluate the boundary layer parameterization in the National Center for Atmospheric Research (NCAR) CCM3. It is found that the down-gradient turbulent transport in the CCM3 is

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ARM - Publications: Science Team Meeting Documents  

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Fair - Weather Cumuli Climatology at the TWP ARM Site Fair - Weather Cumuli Climatology at the TWP ARM Site Kollias, P. and Albrecht B.A., University of Miami Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Fair-weather cumuli are fundamental in regulating the vertical structure of water vapor and entropy in the lowest 2 km of the Earths atmosphere over vast areas of the oceans. Over two years of data from the mm-wavelength cloud radar, at the Nauru (TWP-ARM) site, are analyzed and a statistical description of the field of fair weather cumulus is inferred. Frequency diagrams of cloud thickness, fractional coverage, updraft-downdraft magnitudes and cloud reflectivity are calculated for four different classes of fair weather cumuli. Seasonal patterns are identified and their relationship to the thermodynamic structure of the boundary layer (wet-dry

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ARM - Publications: Science Team Meeting Documents  

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Diurnal Cycle of Cloud Microphysical Properties from GOES Over the ARM Diurnal Cycle of Cloud Microphysical Properties from GOES Over the ARM Southern Great Plains Minnis, P., and Young, D.F., National Aeronautics and Space Administration-Langley Research Center; Smith, W.L., Jr., and Heck, P.W., Analytical Services and Materials, Inc. Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Cloud coverage, height and optical depth have been derived from the Geostationary Operational Environmental Satellite (GOES) data taken over the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP) domain since 1994. While these parameters provide a valuable basis for understanding the interaction of clouds with the radiation budget, they do not provide a complete characterization of the cloud field. Phase

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ARM - Publications: Science Team Meeting Documents  

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Comparison of MM5 Forecast Shortwave Radiation with ARM SGP Data Comparison of MM5 Forecast Shortwave Radiation with ARM SGP Data Armstrong, M.A. and Ellingson, R.G., University of Maryland Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The performance of the Pennsylvania State University-National Center for Atmospheric Research Mesoscale Model 5 (MM5), in particular the shortwave downwelling (SW) flux calculations, is examined in this paper. Selected quantities output from the MM5 were compared with ARM SGP data gathered during the SCM intensive observation period (IOP) from June 18 to July 18, 1997. MM5 was run 29 times with a forecast length of 24 hours. The data were saved and then compared to radiosonde and pyranometer data. SW flux calculated from the MM5 deviated severely from that observed at the SGP

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ARM - Publications: Science Team Meeting Documents  

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Comparison of ARM Cloud Property Observations with CRM Simulations Comparison of ARM Cloud Property Observations with CRM Simulations Xu, K.-M. (a), Cederwall, R.T. (b), Xie, S.C. (b), and Yio, J.J. (b), NASA Langley Research Center (a), Lawrence Livermore National Laboratory (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The cloud property observations are compared with cloud-resolving model simulated cloud properties in this study, using the Summer 1997 Intensive Observation Period (IOP) data of the ARM program. Midlatitude continental cumulus convection are simulated by seven 2-D and two 3-D cloud resolving models (CRMs), driven by observed large-scale advective temperature and moisture tendencies, surface turbulence fluxes, and radiative heating profiles during three subperiods of the Summer 1997 IOP. Each subperiod

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ARM - Publications: Science Team Meeting Documents  

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An Overview of ARM Satellite Cloud and Radiation Budget Datasets An Overview of ARM Satellite Cloud and Radiation Budget Datasets Minnis, P.(a), Nguyen, L.(a), Smith Jr., W.L.(a), Doelling, D.R.(b), Heck, P.W.(c), Khaiyer, M.M.(b), Palikonda, R.(b), Young, D.F.(a), Spangenberg, D.A.(b), Chakrapani, V.(b), Walter, B.J.(b), and Nowicki, G.D.(b), NASA Langley Research Center (a), Analytical Services and Materials, Inc. (b), CIMSS/University of Wisconsin-Madison (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The derivation of cloud properties from satellite data has been greatly enhanced by the availability of new multispectral satellite imagers, the validation power of ARM instruments and IOPs, and increases in computer processing speeds. Likewise, the recent availability of broadband radiation

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ARM - Publications: Science Team Meeting Documents  

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Cloud Height Statistics Derived from ARM Millimeter Cloud Radar Cloud Height Statistics Derived from ARM Millimeter Cloud Radar Kato, S. (a), Clothiaux, E.E. (b), and Xu, K.-M. (c), Hampton University (a), Pennsylvania State University (b), NASA Langley Research Center(c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The probability of occurrence of the cloud top height for a given altitude and relation to the geometrical cloud thickness are derived from radar reflectivity factor taken by a millimeter cloud radar operated at ARM Oklahoma site. Statistics derived using July 1997 data show that the cloud top is likely to occur at 12 km and clouds extend to the lower troposphere. Statistics derived using January 1998 data show that single layer boundary layer clouds are dominant. There is another cloud top peak, although less

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ARM - Publications: Science Team Meeting Documents  

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LASE Characterization of Water Vapor, Aerosol, and Cloud Distributions Over LASE Characterization of Water Vapor, Aerosol, and Cloud Distributions Over the ARM Southern Great Plains Central Facility During AFWEX Ismail, S. (a), Ferrare, R.A. (a), Browell, E.V. (a), Kooi, S.A. (b), Brasseur L.H. (b), Clayton, M.B. (b), Brackett, V. (b), Goldsmith, J.E.M. (c), Whiteman, D.N. (d), and Barrick, J. (a), NASA Langley Research Center (a), SAIC Inc., Hampton, Virginia (b), Sandia National Laboratories (c), NASA Goddard Space Flight Center (d) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting NASA's Lidar Atmospheric Sensing Experiment (LASE) system was operated during the ARM/FIRE Water Vapor Experiment (AFWEX) to characterize the upper tropospheric water vapor field over the ARM Center Facility (CF) as part of the third Water Vapor Intensive Observation Period (WVIOP3). LASE

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ARM - Publications: Science Team Meeting Documents  

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Direct Aerosol Forcing Calculated at the ARM Southern Great Plains Site Direct Aerosol Forcing Calculated at the ARM Southern Great Plains Site Ackerman, T.P., Flynn, D.M., and Long, C.N., Pacific Northwest National Laboratory Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The continuous measurements of direct and diffuse solar radiation, water vapor column amount, and aerosol optical depth provided at the ARM SGP site permit us to calculate directly the actual magnitude of the direct aerosol forcing. Our methodology employs the clear sky detection algorithm of Long and Ackerman (2000) to identify cloudless periods. We then fit the downward solar flux at the surface during these periods with an empirical function, which provides us with a continuous mathematical representation of the surface flux under aerosol conditions. The flux under completely clear

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ARM - Publications: Science Team Meeting Documents  

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ARM In The Classroom: Developing an Operational Forecasting Site for the ARM In The Classroom: Developing an Operational Forecasting Site for the NSA Harrington, J. Y.(a) and Olsson, P. Q.(b), The Pennsylvania State University (a), The University of Alaska Anchorage (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting During the fall 2002 semester, the Department of Meteorology's Computer Applications in Meteorology course took on the project of developing an operational forecasting site for the ARM North Slope of Alaska and the Alaska Region. The course was designed around team-driven forecast products similar to what the students will find in the job environment. During the fall semester, the students were provided with a data feed from Alaska consisting of various forecast fields for the ETA model Alaska grid. The

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ARM - Publications: Science Team Meeting Documents  

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The Use of the ARM WSI to Estimate the Atmospheric Optical Depth at Night The Use of the ARM WSI to Estimate the Atmospheric Optical Depth at Night Musat, I.C. and Ellingson, R.G., University of Maryland Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The shortwave extinction by atmospheric constituents can be studied during the night, with the light of stars as a radiation source, using the ARM Whole Sky Imager (WSI). The digital images obtained with the WSI are processed to infer the star radiance at the TOA and the broadband atmospheric extinction coefficient. Subsequently, the broadband extinction is calculated from an atmosphere model, and the goodness of fit of the model with observations is assessed taking into account the known profiles of temperature, pressure, columnar mixing ratios of the gases, diverse

85

ARM - Publications: Science Team Meeting Documents  

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Comparison of Aerosol Properties Within and Above the Atmospheric Boundary Comparison of Aerosol Properties Within and Above the Atmospheric Boundary Layer at the ARM SGP Site Delle Monache, L.(a), Perry, K.D.(a), and Cederwall, R.T.(b), San Jose State University (a), Lawrence Livermore National Laboratory (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The objective of this work is to determine under what conditions, if any, measurements of aerosol properties made at the surface at the ARM SGP Central Facility are representative of aerosol properties within the column of air above the surface. This is important in assessing the value of data collected at the ARM Aerosol Observation System (AOS) for developing and diagnosing cloud and radiation parameterizations involving aerosol properties within and above the atmospheric boundary layer (ABL). The study

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ARM - Publications: Science Team Meeting Documents  

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Sub-Grid-Scale Isentropic Transports on McRAS Evaluations Sub-Grid-Scale Isentropic Transports on McRAS Evaluations Using ARM-CART SCM Datasets Sud, Y.C., Walker, G.K., and Tao, W.-K., Climate and Radiation Branch, Laboratory for Atmospheres, NASA/Goddard Space Flight Center Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Influence of Sub-grid-Scale Isentropic Transports on McRAS: Evaluation using ARM-CART SCM Datasets. Y. C. Sud, G. K. Walker and W.-K. Tao In GCM-physics evaluations with the currently available ARM-CART SCM datasets, McRAS produced very similar character of near surface errors of simulated temperature and humidity containing typically warm and moist biases near the surface and cold and dry biases aloft. We argued it must have a common cause presumably rooted in the model physics. Lack of vertical adjustment

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ARM - Publications: Science Team Meeting Documents  

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Comparison of Stratus Cloud Optical Depths Retrieved from Surface and GOES Comparison of Stratus Cloud Optical Depths Retrieved from Surface and GOES Measurements over the SGP ARM Central Facility Dong, X., and Smith, W.L. Jr., Analytical Services and Materials, Inc.; Minnis, P., NASA Langley Research Center Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting For reliable application of satellite datasets in cloud process and single column models, it is important to have a reasonable estimate of the errors in the observed cloud properties. When properly used, ground-based instruments can provide a cloud truth dataset for estimating errors in the satellite products. Data taken during the spring 1994 ARM Intensive Observation Period (IOP), ARM Enhanced Shortwave Experiment (ARESE), and SUbsonic Aircraft Contrail and Cloud Effects Special Study (SUCCESS) are

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ARM - Publications: Science Team Meeting Documents  

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GPS Measured Water Vapor Variability at the ARM SGP CF GPS Measured Water Vapor Variability at the ARM SGP CF Braun, J. (a), Rocken, C. (a), and Schmid, B. (b), UCAR (a), BAER (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Ground based Global Positioning System (GPS) stations can measure precipitable water vapor (PWV) and slant water vapor (SWV). SWV is the integrated amount of water vapor along the slant path from the GPS transmitter to the station. The ARM program has sponsored the University Corporation for Atmospheric Research (UCAR) to install and operate a network of single frequency GPS receivers at the Southern Great Plains (SGP) Central Facility (CF). Fourteen stations were installed in 1999, and an additional nine stations in 2000. The entire network covers approximately 40 square kilometers roughly centered around the SGP CF. This

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ARM - Publications: Science Team Meeting Documents  

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An Overview of Water Vapor IOP (WVIOP) 2000 and ARM/FIRE Water Vapor An Overview of Water Vapor IOP (WVIOP) 2000 and ARM/FIRE Water Vapor EXperiment (AFWEX) Tobin, D., Revercomb, H., and Turner, D.D., University of Wisconsin-Madison Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting WVIOP 2000 and AFWEX, two field experiments with focus on the accuracy of ARM water vapor measurements, have recently been conducted. WVIOP 2000, the third in a series of WVIOPs which have studied the accuracy of lower tropospheric water vapor measurements, ran from 18 September to 8 October 2000 and consisted of ground based operations primarily out of the SGP central facility. AFWEX was an interagency experiment with the primary goal of assessing the accuracy of upper level (~8-12 km) water vapor measurements. It was conducted from 27 November to 15 December 2000 and

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ARM - Publications: Science Team Meeting Documents  

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ARM Radiosonde Humidity Measurements and Proposed Corrections ARM Radiosonde Humidity Measurements and Proposed Corrections Based On AWEX Radiosonde Intercomparisons Miloshevich, L.M.(a), Lesht, B.M.(b), and Voemel, H.(c), National Center for Atmospheric Research (a), Argonne National Laboratory (b), NOAA/CMDL (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM radiosonde relative humidity (RH) measurements are widely used in numerical modeling, remote sensor validation, and radiative transfer calculations, yet their accuracy as a function of temperature and RH has not been adequately quantified. During the AIRS Water vapor EXperiment (AWEX) at the SGP site in November 2003, 34 launches of multiple radiosondes on the same balloon were conducted, including 12 soundings from the University of Colorado's Cryogenic Frostpoint Hygrometer (CFH). The

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ARM - Publications: Science Team Meeting Documents  

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Aerosol Indirect Effect: Evidence from the ARM SGP and NSA Sites Aerosol Indirect Effect: Evidence from the ARM SGP and NSA Sites Penner, J.E.(a), Chen, Y.(a), and Dong, X.(b), University of Michigan (a), University of North Dakota (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The ARM SGP site and the NSA site provide a unique opportunity to examine the effects of aerosols on cloud optical properties because the aerosol concnetrations at each site span the range between polluted and clean conditions. Here, we examine whether the effect of aerosols on clouds can adequately explain the observed relationship between the liquid water path observed at each site and the cloud optical depth required to determine the observed surface flux. Aerosol number concentration at the SGP site was determined from the observed CN number concentration as well as the

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ARM - Publications: Science Team Meeting Documents  

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Infrared Cloud Imager (ICI) Measurements of Cloud Statistics During the Infrared Cloud Imager (ICI) Measurements of Cloud Statistics During the 2003 Cloudiness Intercomparison Campaign Gregory, L., Wagener, R., Ma, L.L., and Cialella, A., Brookhaven National Laboratory Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The process of creating ARM data-streams from external data sources is described from identification of scientific need as determined by the science working groups to implementation and documentation, which involves ARM's task management tools: Engineering Change Request/Order, Baseline Change Request, Data Object Design/Birth of a Data Stream, eXternal Data Stream documentation. Pitfalls and typical delays are illustrated with recently completed data-stream ingests. Some procedural changes are

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ARM - Publications: Science Team Meeting Documents  

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Evaluation of Terra MODIS Aerosol and Water Vapor Measurements Using ARM Evaluation of Terra MODIS Aerosol and Water Vapor Measurements Using ARM SGP Data Ferrare, R.A. (a), Brasseur, L.H. (b), Turner, D.D. (c,d), Tooman, T.P. (e), Remer, L. (f), and Gao, B-C. (g), NASA Langley Research Center (a), Science Applications International Corporation/NASA/LaRC (b), Pacific Northwest National Laboratory (c), University of Wisconsin-Madison (d), Sandia National Laboratories (e), NASA Goddard Space Flight Center (f), Naval Research Laboratory (g) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting NASA's Moderate-Resolution Imaging Spectroradiometer (MODIS) sensor on the Earth Observing System (EOS) Terra satellite platform has been measuring aerosol and water vapor parameters since February 2000. The MODIS aerosol

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ARM - Publications: Science Team Meeting Documents  

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Meeting Meeting 1999 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-1999, March 1999 San Antonio, Texas For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Abshire, J.B. Development of a Compact Lidar to Profile Water Vapor in the Lower Troposphere Ackerman, T.P. A 25-Month Database of Stratus Cloud Properties Generated from Ground-Based Measurements at the ARM SGP Site

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ARM - Publications: Science Team Meeting Documents  

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7 Science Team Meeting 7 Science Team Meeting 1997 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Seventh Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-1997, March 1997 San Antonio, Texas For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. Poster abstracts are not available online for this year. However, if you would like to request a copy of a specific poster abstract, please contact the Web Administrator. A Comparison of Integrated Water Vapor Sensors: WVIOP-96 J.C. Liljegren, E.R. Westwater, and Y. Han A Comparison of Observed Clear-Sky Surface Irradiance with

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ARM - Publications: Science Team Meeting Documents  

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3 Science Team Meeting 3 Science Team Meeting 1992 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Third Atmospheric Radiation Measurement (ARM) Science Team Meeting CONF-9303112, March 1-4,1993 Norman, Oklahoma For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. History and Status of the ARM Program - March 1993 History and Status of the Atmospheric Radiation Measurement Program - March 1993 P. Lunn, T. Cress, and G. Stokes Clear Skies A Study of Longwave Radiaiton Codes for Climate Studies: Validation with Observations and Tests in General Circulation Models - an Update R.G. Ellingson and F. Baer

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ARM - Publications: Science Team Meeting Documents  

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1 Science Team Meeting 1 Science Team Meeting 2001 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2001, March 2001 Atlanta, Georgia For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A 3-Year Climatology of Cloud and Radiative Properties Derived from GOES-8 Data Over the Southern Great Plains M.M. Khaiyer, A.D. Rapp, D.R. Doelling, M.L. Nordeen, W.L. Smith, Jr., and P. Minnis A 4-Year Study of the RASS Temperature Bias

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7 Science Team Meeting 7 Science Team Meeting 1997 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Seventh Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-1997, March 1997 San Antonio, Texas For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. Poster abstracts are not available online for this year. However, if you would like to request a copy of a specific poster abstract, please contact the Web Administrator. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Acharya, P. Spectral Resolution Effects on Solar Irradiance Calculations Ackerman, S.A.

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5 Science Team Meeting 5 Science Team Meeting 1995 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Fifth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-1995, March 1995 San Diego, California For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Ackerman, T.P. A Boundary-Layer Cloud Study Using Southern Great Plains Cloud and Radiation Testbed (CART) Data A Comparison of Radiometric Fluxes Influenced by Parameterized Cirrus Clouds with Observed Fluxes at the Southern Great Plains (SGP) Cloud

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0 Science Team Meeting 0 Science Team Meeting 2000 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Tenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2000, March 2000 San Antonio, Texas For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). Poster abstracts are not available online for this year. However, if you would like to request a copy of a specific poster abstract, please contact the Web Administrator. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Abshire, J.B.

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101

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3 Science Team Meeting 3 Science Team Meeting 2003 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2003, April 2003 Broomsfield, Colorado For proper viewing, extended abstracts should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A 20-year Data Set of Downwelling Longwave Flux at the Arctic Surface from TOVS Satellite Data Francis, J.A., Schweiger, A., and Key, J. A Comparison of Aerosol Scattering Parameters Obtained by Ground-Based Remote Sensing and In-situ Profile Flights*

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Water Vapor Intensive Operating Periods: General Results, Status and Plans Water Vapor Intensive Operating Periods: General Results, Status and Plans Revercomb, H.E., Tobin, D.C., Knuteson, R.O., and Feltz, W.F., University of Wisconsin-Madison; Turner, D.D., Pacific Northwest National Laboratory Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Accurate measurements of atmospheric water vapor are very important for climate research and monitoring. Unexpectedly large uncertainties of sonde water vapor observations implied by Atmospheric Radiation Measurement (ARM) Program's radiation measurements led to special Water Vapor Intensive Observation Periods (IOPs) conducted in 1996 and 1997 at the Southern Great Plains (SGP) central facility. The goal was to use the complement of ARM advanced instrumentation to better quantify the problem and to find ways of

103

ARM - Publications: Science Team Meeting Documents  

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Interactions of Cumulus Convection and the Boundary Layer Over the Southern Interactions of Cumulus Convection and the Boundary Layer Over the Southern Great Plains Krueger, S.K. (a), Luo, Y. (a), Lazarus, S.M. (a), and Xu, K.-M. (b), University of Utah (a), NASA Langley Research Center (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting We are using observations and cloud-resolving model (CRM) simulations to better understand the interaction between deep cumulus convection and the boundary layer over the southern Great Plains of the United States. The observations are from a 29-day ARM SCM IOP that took place at the ARM SGP site during June and July 1997. The cumulus effects in the boundary layer are due to rain evaporation and fluxes due to cumulus updrafts and downdrafts. These effects can substantially modify the boundary layer in

104

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The Second ARM Diffuse Horizontal Irradiance Comparison Fall 2003 The Second ARM Diffuse Horizontal Irradiance Comparison Fall 2003 Michalsky, J.J.(a), Dolce, R.(b), Dutton, E.G.(c), Long, C.N.(d), Jeffries, W.Q.(e), McArthur, L.J.B.(f), Philipona, R.(g), Reda, I.(h), and Stoffel, T.L.(h), State University of New York at Albany (a), Kipp & Zonen, Inc. (b), Climate Monitoring and Diagnostics Laboratory, NOAA (c), Pacific Northwest National Laboratory (d), Yankee Environmental Systems, Inc. (e), Meteorological Service of Canada (f), World Radiation Center (g), National Renewable Energy Laboratory (h) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The first diffuse horizontal irradiance comparison in the Fall 2001 revealed a consistency near the 2 W/m2 level among more than half of the pyranometers that participated. In planning for this second comparison the

105

ARM - Publications: Science Team Meeting Documents  

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Boundary Layer Structure and Fair-Weather Cumulus Characteristics at the Boundary Layer Structure and Fair-Weather Cumulus Characteristics at the TWP ARM Site - Comparisons with Other Tropical and Subtropical Sites Albrecht, B. and Kollias, P., University of Miami Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Fair-weather cumuli are fundamental in regulating the vertical structure of water vapor and entropy in the lowest 2 km of the Earths atmosphere over vast areas of the oceans. Boundary layer structures and cloud characteristics observed at Nauru (ARM TWP) during suppressed convective conditions are compared with those observed at other tropical and subtropical sites. Over three years of data from the mm-wavelength cloud radar and ceilometer observations at the Nauru site are analyzed and a statistical description of the field of fair weather cumulus is inferred.

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ARM - Publications: Science Team Meeting Documents  

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Towards Parameterization of Frontal Mesoscale Circulations and Cloudiness Towards Parameterization of Frontal Mesoscale Circulations and Cloudiness in GCMs Based on ARM Observations Norris, J.R.(a), Weaver, C.P.(b), Gordon, N.D.(c), and Klein, S.A.(d), Scripps Institution of Oceanography (a), Rutgers University (b), Scripps Institution of Oceanography (c), GFDL/NOAA (d) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Cloudiness associated with extratropical cyclones is currently poorly represented in GCMs due to incorrect and insufficient representation of subgrid-scale processes. Since this can lead to erroneous cloud-climate feedbacks it is necessary to develop an understanding of the relationship between mesoscale cloud variability and large-scale synoptic forcing that will result in improved parameterization. Observations from the ARM

107

ARM - Publications: Science Team Meeting Documents  

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I Method I Method Potter, G.L.(a), Boyle, J.S.(a), Cederwall, R.T.(a), Fiorino, M.(a), Hnilo, J.J.(a), Phillips, T.J.(a), and Williamson, D.(b), Lawrence Livermore National Laboratory (a), National Center for Atmospheric Research (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting We present a methodology to diagnose GCM errors by using NWP analyses to initialize a climate model. The analysis is used as input in conjunction with ARM data to study the initial model drift (6-36 hours) from the observations. Simply put, a climate model is used in a weather forecast mode to see how quickly it drifts from the observed weather and detailed observations provided by the ARM program. This approach can be used to improve parameterizations responsible for models errors on longer time

108

ARM - Publications: Science Team Meeting Documents  

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International Pyrgeometer and Absolute Sky-scanning Radiometer Comparison International Pyrgeometer and Absolute Sky-scanning Radiometer Comparison at the NSA ARM site Barrow Stamnes, K. (a), Dutton, E.G. (b), Marty, Ch. (c), Michalsky, J.J. (d), Philipona, R. (e), Stoffel, T. (f), Storvold, R. (c), and Zak, B.D. (g), Stevens Institute of Technology, New Jersey (a), NOAA, Climate Monitoring and Diagnostics Laboratory (b), University of Alaska Fairbanks (c), State University of New York at Albany (d), World Radiation Center, Davos, Switzerland (e), National Renewable Energy Lab, Boulder (f), Sandia National Laboratories, Albuquerque (g) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The first International Prgeometer and Absolute Sky-scanning Radiometer Comparison (IPASRC I), which was held in fall 1999 at the ARM SGP site in

109

ARM - Publications: Science Team Meeting Documents  

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Comparison of Boundary Layer Cloud Properties using Surface and GOES Comparison of Boundary Layer Cloud Properties using Surface and GOES Measurements at the ARM SGP Site Dong, X. (a), Minnis, P. (b), Smith, W.L., Jr. (b), and Mace, G.G. (a), University of Utah (a), NASA Langley Research Center (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Boundary layer cloud microphysical and radiative properties derived from GOES data during March 2000 cloud IOP at ARM SGP site are compared with simultaneous surface-based observations. The cloud-droplet effective radius, optical depth, and top-of-atmoshpere (TOA) albedo are retrieved from a 2-stream radiative transfer model in conjunction with ground-based measurements of cloud radar, laser ceilometer, microwave and solar radiometers. The satellite results are retrieved from GOES visible and

110

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Initial Cloud Properties Derived from GMS Over the Tropical Western Pacific Initial Cloud Properties Derived from GMS Over the Tropical Western Pacific Doelling, D.R., Ho, S.-P., Smith, W.L., Jr., Analytical Services and Materials, Inc.; Minnis, P., National Aeronautics and Space Administration-Langley Research Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Satellite data are needed to provide measurements of the earth-atmosphere shortwave (SW) albedo, outgoing longwave radiation (OLR), and cloud and surface radiative properties for the Atmospheric Radiation Measurement (ARM) Program's Tropical Western Pacific (TWP) domain. Geostationary Meteorological Satellite (GMS) data have been archived since November 1996 and provide the basis for monitoring these essential parameters over the ARM TWP. This paper describes the initial efforts and results of developing

111

ARM - Publications: Science Team Meeting Documents  

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A Satellite-Based Assessment of Upper Tropospheric Water Vapor Measurements A Satellite-Based Assessment of Upper Tropospheric Water Vapor Measurements During AFWEX Soden, B.J.(a), Ferrare, R.A.(b), Goldsmith, J.E.M.(c), Smith, W.L.(d), Tobin, D.(e), Turner, D.D.(f), and Whiteman, D.N.(g), NOAA/GFDL (a), NASA/LaRC (b), Sandia National Laboratories (c), NASA/LaRC (d), UW/SSEC (e), Pacific Northwest National Laboratory (f), NASA/GSFC (g) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Accurate measuremetns of upper tropospheric water vapor are critical both for understanding the flow of radiation and formation of clouds, and for the detection and attribution of climate change. In fall of 2000 ARM conducted the ARM-FIRE Water Vapor Experiment (AFWEX) to evaluate the accuracy of upper tropospheric water vapor measurements. The experiment

112

ARM - Publications: Science Team Meeting Documents  

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An Assessment of Upper Tropospheric Humidity Measurements at the ARM An Assessment of Upper Tropospheric Humidity Measurements at the ARM SGP/CART Site Soden, B.J. (a), Turner, D.D. (b), and Goldsmith, J.E.M. (c), NOAA/GFDL (a), Pacific Northwest National Laboratory (b), Sandia National Laboratories (c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Upper tropospheric water vapor plays a key role in regulating the flow of radiation through clear skies and the formation and dissipation of clouds. Unfortunately, due to the difficulty of accurately measuring this quantity, it remains a key uncertainty in GCM predictions of climate change. Much of the uncertainty surrounding upper tropospheric water vapor reflects an incomplete understanding of the processes which regulate its distribution and variations. This, in turn, reflects the lack of suitable observations

113

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From Crops to Boundary Layer and Back Down Again: the ARM Carbon Project in From Crops to Boundary Layer and Back Down Again: the ARM Carbon Project in the Southern Great Plains Torn, M.S.(a), Berry, J.(b), Riley, W.J.(a), Fischer, M.L.(a), Billesbach, B.(c), Helliker, B.(b), and Giles, L.(b), Lawrence Berkeley National Laboratory (a), Carnegie Institution of Washington (b), University of Nebraska (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting One of the challenges in carbon cycle research is the vast range of scale that must be traversed by measurements and models. Our understanding of carbon cycle processes is being built from studies of enzymes, organisms and plot-scale studies of ecosystems, while our ultimate objective is to understand the mass and isotope balance of earth’s atmosphere. Spanning

114

ARM - Publications: Science Team Meeting Documents  

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Comparison of Spectral and Broadband Measurements of Surface Flux with Comparison of Spectral and Broadband Measurements of Surface Flux with Model Calculations on Clear Days at the ARM SGP Site Arking, A. (a), Liu, F. (a), Harrison, L. C. (b), Pilewskie, P. (c), and Chou, M.-D. (d), Johns Hopkins University (a), State University of New York, Albany (b), NASA Ames Research Center (c), NASA Goddard Space Flight Center (d) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Observations of spectral and broadband solar irradiance at the ARM/SGP site have been compared with line-by-line model calculations. The spectral measurements were made with the SUNY Albany Rotating Shadowband Spectroradiometer (RSS) and the NASA Ames Solar Spectral Flux Radiometer (SSFR). The broadband measurements were made with the Baseline Solar

115

ARM - Publications: Science Team Meeting Documents  

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Development and Comparison of Ground- and Satellite-based Retrievals of Development and Comparison of Ground- and Satellite-based Retrievals of Cirrus Cloud Physical Properties d'Entremont, R.P.(a) and Mitchell, D.L.(b), Atmospheric and Environmental Research, Inc. (a), Desert Research Institute (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting This project is designed to (1) develop new ground- and space-based retrieval methods for cirrus cloud ice water path (IWP), effective size (Deff), and visible extinction optical thickness (OT) using thermal infrared wavelength bands from 3.7 to 13 um, and (2) to compare these retrievals with others obtained by ARM investigators during various ARM IOPs. During year 1 of this project research focused primarily on the enhancing of satellite- and ground-based thermal infrared retrievals of

116

ARM - Publications: Science Team Meeting Documents  

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CAGEX Version 3: Tightening Shortwave Fluxes and Measurements of Surface CAGEX Version 3: Tightening Shortwave Fluxes and Measurements of Surface Spectral Characteristics Alberta, T.L., Analytical Services and Materials, Inc.; Charlock, T.P., National Aeronautics and Space Administration-Langley Research Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Version 3 of the CAGEX (Clouds and Earth's Radiant Energy System [CERES]/Atmospheric Radiation Measurement [ARM]/Global Energy and Water Experiment [GEWEX]) is introduced. As with Version 2 (10/95) and Version 1 (4/94), Version 3 provides input data sufficient for broadband radiative transfer calculations; fluxes computed with those inputs and the Fu-Liou code as modified by Hu, Rose and Kratz; and measurements for validation and diagnostics. Along with the usual ARM data sets (Solar and Infrared

117

ARM - Publications: Science Team Meeting Documents  

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Using ARM GOES-8 Cloud and TOA Flux Properties to Estimate Surface Using ARM GOES-8 Cloud and TOA Flux Properties to Estimate Surface Radiation Budget Parameters Stackhouse, P.W., Jr. (a), Gupta, S.K. (b), Cox, S.J. (b), Minnis, P. (a), Smith, W.L., Jr. (b), and Khaiyer, M.M. (b), NASA Langley Research Center (a) Analytical Services and Materials, Inc. (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The Global Energy and Water Cycle Experiment (GEWEX) Surface Radiation Budget Project (SRB) uses top-of-atmosphere (TOA) radiance measurements and cloud property retrievals to estimate surface fluxes on a global basis. Normally, GEWEX SRB algorithms rely on TOA radiances and cloud information derived from International Satellite Cloud Climatology Project (ISCCP) data. Here, we show first results of using SW and LW algorithms featured in

118

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Irradiance Using Remotely Sensed Cloud Properties From Irradiance Using Remotely Sensed Cloud Properties From ARM's SGP Site Barker, H.W., Atmospheric Environment Service of Canada; Li, Z., Canada Centre for Remote Sensing; Clothiaux, E.E., and Ackerman, T.P., The Pennsylvania State University; Kato, S., National Aeronautics and Space Administration-Langley Research Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Time series of profiles of cloud water content and droplet effective radii have been inferred from data obtained by a 35-GHz radar and a Microwave Radiometer (MWR) at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP) site. These profiles initialize a Monte Carlo algorithm that predicts time series of broadband surface solar irradiance, which in turn are compared with coeval measurements. Special attention is

119

ARM - Publications: Science Team Meeting Documents  

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Sizes, Fractional Coverage, and Radar Doppler Moments Profiles of Sizes, Fractional Coverage, and Radar Doppler Moments Profiles of Fair-Weather Cumulus Clouds at the TWP ARM Site Kollias, P., Albrecht B.A., and Dow B.J., University of Miami Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Fair-weather cumuli are fundamental in regulating the vertical structure of water vapor and entropy in the lowest 2 km of the Earth's atmosphere over vast areas of the oceans. Using data from the mm-wavelength cloud radar, the micro-pulse lidar and ceilometer at the Nauru (TWP-ARM) site, a statistical description of the field of fair weather cumulus is inferred. Frequency diagrams of cloud thickness, fractional coverage, updraft-downdraft magnitudes and cloud reflectivity are calculated. The relationship of the statistical behavior of the cumulus field to the

120

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An Improved Technique for Producing MPL Backscatter Profiles Properly An Improved Technique for Producing MPL Backscatter Profiles Properly Characterized at All Ranges Flynn, C.J. and Powell, D.M., Pacific Northwest National Laboratory Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting An important part of ARM's mission is the quantitative study of the effect of clouds and aerosol on radiative transfer and the energy budget. Micropulse Lidar (MPL) are an integral component of the ARM Program's measurement strategy with one deployed at each of the four major sites (SGP, TWP1, TWP2, and NSA). The MPL system is capable of producing vertical profiles of cloud and aerosol from ground level to the top of the atmosphere. However, the legitimacy of these profiles is sensitive to the calibration and system corrections of the individual MPL. In particular,

Note: This page contains sample records for the topic "annual arm science" 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

ARM - Publications: Science Team Meeting Documents  

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Validation of CERES/MODIS Cloud Property Retrievals Using Ground-Based Validation of CERES/MODIS Cloud Property Retrievals Using Ground-Based Measurements Obtained at the DOE ARM SGP Site Dong, X.(a), Minnis, P.(b), Sun-Mack, S.(b), and Mace, G.G.(a), University of Utah (a), NASA Langley Research Center (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Cloud macrophysical and microphysical properties derived from the NASA TERRA (EOS-AM) Moderate Resolution Spectroradiometer (MODIS) as part of the Clouds and the Earth's Radiant Energy System (CERES) project during November 2000-June 2001 are compared to simultaneous ground-based observations. The ground-based data taken by the Atmospheric Radiation Measurement (ARM) Program are used as "ground truth" data set in the validation of the CERES cloud products and to improve the CERES daytime and

122

ARM - Publications: Science Team Meeting Documents  

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Shortwave and Longwave Flux and Cooling Rate Profiles for the ARM Central Shortwave and Longwave Flux and Cooling Rate Profiles for the ARM Central Facility Clough, S.A. (a), Delamere, J.S. (a), Mlawer, E.J. (a), Cederwall, R.T. (b), Revercomb, H. (c), Tobin, D. (c), Turner, D.D. (c), Knuteson, R.O. (c), Michalsky, J.J. (d), Kiedron, P.W. (d), Ellingson, R.G. (e), Krueger, S.K. (f), Mace, G.G. (f), Shippert, T. (g), and Zhang, M.H.(h), Atmospheric and Environmental Research, Inc. (a), Lawrence Livermore National Laboratory (b), University of Wisconsin-Madison (c), State University of New York, Albany (d), University of Maryland (e), University of Utah (f), Pacific Northwest National Laboratory (g), State University of New York, Stony Brook (h) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Accurate representations of the cooling rate profile, the surface flux and

123

ARM - Publications: Science Team Meeting Documents  

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an Improved Convective Triggering Mechanism in the NCAR CAM2 an Improved Convective Triggering Mechanism in the NCAR CAM2 under the CCPP-ARM Parameterization Testbed (CAPT) Framework Xie, S.C.(a), Cederwall, R.T.(a), Potter, G.L.(a), Boyle, J.S.(a), Yio, J.J.(a), Zhang, M.H.(b), and Lin, W.Y.(b), Lawrence Livermore National Laboratory (a), State University of New York at Stony Brook (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting In this study, we implement an improved convective triggering mechanism, which was developed by Xie and Zhang [2000] based on the ARM observations and Single-Column Model (SCM) tests, in the NCAR Community Atmosphere Model (CAM2) in order to reduce the problem that the model produces excessive warm season daytime precipitation over land. This problem is closely

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ARM - Publications: Science Team Meeting Documents  

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LASE Characterization of Water Vapor Over the ARM SGP During AFWEX LASE Characterization of Water Vapor Over the ARM SGP During AFWEX Ismail, S.(a), Ferrare, R.A.(a), Browell, E.V.(a), Kooi, S.A.(b), Brasseur, L.H.(b), Clayton, M.B.(b), Brackett, V.(b), Turner, D.D. (c), Goldsmith, J.E.M.(d), Whiteman, D.N.(e), Barrick, J.(a), Sachse, G.(a), Diskin, G.(a), Podolske, J.(f), Schmidlin, F.J.(g), and Bosenberg, J.(h), NASA Langley (a), SAIC (b), Pacific Northwest National Laboratory (c), Sandia National Laboratories (d), NASA Goddard (e), NASA Ames (f), NASA Wallops (g), Max Planck Institute (h) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting NASA's Lidar Atmospheric Sensing Experiment (LASE) system was operated during the ARM/FIRE Water Vapor Experiment (AFWEX) to characterize the upper tropospheric (UT) water vapor field over the ARM Center Facility (CF)

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ARM - Publications: Science Team Meeting Documents  

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Infrared Interferometric Measurements of the Air-Sea Temperature Difference Infrared Interferometric Measurements of the Air-Sea Temperature Difference Minnett, P.J., Rosenstiel School of Marine and Atmospheric Science, University of Miami Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Marine Atmosphere Emitted Radiance Interferometers (M-AERI) have been mounted on several research ships on cruises in the world?s oceans, several in the areas of the ARM TWP and NSA-AAO sites. Accurate measurements of the skin sea-surface temperature and near-surface air temperatures are derived from the infrared spectral measurements, which, unlike conventional measurements of air-sea temperature difference, have a common calibration. This removes the largest source of uncertainty in the measurement of air-sea temperature differences, and thereby a major uncertainty in

126

ARM - Publications: Science Team Meeting Documents  

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The Solar Spectrum 360 to 1050 nm from Rotating Shadowband The Solar Spectrum 360 to 1050 nm from Rotating Shadowband Spectroradiometer (RSS) Measurements at the Southern Great Plains Site Harrison, L.C., Berndt, J.L., Kiedron, P.W., Michalsky, J.J., Min, Q., and Schlemmer, J., Atmospheric Sciences Research Center, State University of New York, Albany Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Two years of Langley extrapolations made from the Southern Great Plains (SGP) site of the Atmospheric Radiation Measurement (ARM) Program using two very different RSS instruments and a NIST-derived irradiance scale show larger extraterrrestrial solar irradiances in the 400 to 600 nm domain by as much as 4.5% compared to the Labs and Neckels [1968] data. Our results are more congruent with Thuiller et al. [1998] in this domain, but do not

127

ARM - Publications: Science Team Meeting Documents  

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Meeting Meeting 2003 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2003, April 2003 Broomsfield, Colorado For proper viewing, extended abstracts should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Abdou, W.A. Intercomparison of MISR Aerosol Retrievals with Sunphotometer and MODIS Results* Ackerman, T.P. Comparison of Observed and Modelled Liquid Water Path for Stratus and Stratocumulus Clouds at the SGP*

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ARM - Publications: Science Team Meeting Documents  

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Change of Atmospheric Boundary Layer Thermal Regime Induced by Aerosol as Change of Atmospheric Boundary Layer Thermal Regime Induced by Aerosol as Measured by MTP-5 Koldaev, A.V.(a), Kadygrov, E.N.(a), Khaikine, M.N.(a), Kuznetsova, I.N.(b), and Golitsyn, G.S.(c), Central Aerological Observatory (a), Hydrometeorological Center (b), A.M.Obukhov Institute of Atmospheric Physics Russian Academy of Science (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Change in atmospheric boundary layer (ABL) radiation balance as caused by natural and anthropogenic reasons is an important topic of ARM Project. The influence of aerosol while its concentration was extremely high within a long period of time was studied experimentally. The case was observed in Moscow region with the transport of combustion products from peat and

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ARM - Publications: Science Team Meeting Documents  

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Characterization and Calibration of the Commercial RSS Slated for Permanent Characterization and Calibration of the Commercial RSS Slated for Permanent Deployment at SGP Kiedron, P., Berndt, J., Yager, E., Harrison, L., and Michalsky, J., Atmospheric Sciences Research Center, SUNY at Albany, New York Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The ARM program purchased a rotating shadowband spectroradiometer (RSS) that was manufactured by Yankee Environmental Systems, Inc. At ASRC the instrument went through initial acceptance tests and after corrections and modifications made by the manufacturer the instrument was characterized. The angular response, linearity, wavelength registration, out-of-band rejection, slit function, absolute spectral response and noise were measured. The purpose of instrument characterization is to provide the

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ARM - Publications: Science Team Meeting Documents  

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Meeting Meeting 2002 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2002, April 2002 St. Petersburg, Florida For proper viewing, extended abstracts should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Ackerman, S.A. Cloud Phase Determination in the Arctic Using AERI Data ERBE OLR and Cloud Type by Split Window* Ackerman, T.P. A Climatology of Shortwave Cloud Radiative Forcing Using Ground-Based Broadband Radiometric Time-Series*

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Publication Trends of ARM Research Troyan, David Brookhaven National Laboratory This study summarizes the publication record of ARM research. Items of all types listed in the ARM...

132

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6 Science Team Meeting 6 Science Team Meeting 1996 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Sixth Atmospheric Radiation Measurement (ARM) Science Team Meeting DOE CONF-9603149, March 1996 San Antonio, Texas For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. Poster abstracts are not available online for this year. However, if you would like to request a copy of a specific poster abstract, please contact the Web Administrator. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Ackerman, T.P. A Comparison Between Clear Sky Shortwave Flux Calculations and Observations During ARESE

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2 Science Team Meeting 2 Science Team Meeting 1992 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Second Atmospheric Radiation Measurement (ARM) Science Team Meeting DOE CONF-9110336, October 26-30, 1992 Denver, Colorado For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Ackerman, T. An Integrated Cloud Observation and Modeling Investigation in Support of the Atmospheric Radiation Measurement Program Tropical Western Pacific Project: Status Albrecht, B.

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4 Science Team Meeting 4 Science Team Meeting 1994 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Fourth Atmospheric Radiation Measurement (ARM) Science Team Meeting DOE CONF-940277, March 1994 Charleston, South Carolina For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Abreu, L.W. MODTRAN3: Suitability as a Flux-Divergence Code Acharya, P. MODTRAN3: Suitability as a Flux-Divergence Code Ackerman, S.A. Atmospheric Emitted Radiance Interferometer Data Analysis Methods

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2 Science Team Meeting 2 Science Team Meeting 1992 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Second Atmospheric Radiation Measurement (ARM) Science Team Meeting DOE CONF-9110336, October 26-30, 1992 Denver, Colorado For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. Technical Sessions A Field Evaluation of NOAA Remote Sensor Measurements of Wind, Temperature, and Moisture B.E. Martner A Stochastic Formulation of Radiant Transfer in Clouds and Radiative Properties of Non-Uniform Clouds G.L. Stephens and P.D. Gabriel A Study of Longwave Radiation Codes for Climate Studies: Validation

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Formation of Fair-Weather Cumuli Formation of Fair-Weather Cumuli Zhu, P. and Albrecht, B., University of Miami Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting This study includes two related parts. In the first part, The formation of fair-weather cumuli has been analyzed based on both a simple mixed layer model and the data collected from the Atmospheric Radiation Measurement (ARM) program at the Southern Great Plains (SGP) site. By analyzing the conditions for the formation of fair-weather cumuli, we illustrate how different processes, such as the surface heat fluxes, the entrainment process at the boundary layer top, the vertical thermodynamic structure above the boundary layer, and the large-scale subsidence, control the formation of clouds. The results of our analysis show that it is the highly

137

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Improved Surface Emissivities Derived from Multispectral Satellite Data Improved Surface Emissivities Derived from Multispectral Satellite Data Over the ARM SGP Smith, W.L., Jr., Minnis, P., and Young, D.F., NASA Langley Research Center Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Surface emissivity is an important parameter for many remote sensing applications but is difficult to determine because it requires an accurate specification of the surface skin temperature. Because of this, laboratory estimates of the emissivity of pure surfaces are often relied on which generally do not adequately simulate the Earth's natural surfaces as seen from a satellite imager in space. A technique has been developed to derive surface emissivity from clear-sky, multispectral satellite data for three infrared channels (3.9 or 3.7, 10.8 and 12.0 um) common to many of today's

138

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Exploration of Statistical Angular Radiance Closure in Cloudy Skies Exploration of Statistical Angular Radiance Closure in Cloudy Skies Evans, K.F.(a) and Wiscombe, W.J.(b), University of Colorado (a), NASA/Goddard (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Most ARM cloudy sky radiation closure experiments have been performed with broadband fluxes. However, it is difficult to understand the causes of the inevitable discrepencies between the modeled and observed broadband fluxes in those closure experiments because the fluxes are extensively integrated over angle and wavelength. For example, knowing that a particular comparison disagrees by 50 W/m^2 is not particularly helpful in discovering which aspects of cloud remote sensing, radiative transfer, or measurements might be in error. Angular radiance closure compares the measured and

139

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Improved Methods for Broadband Outdoor Radiometer Calibration (BORCAL) Improved Methods for Broadband Outdoor Radiometer Calibration (BORCAL) Wilcox, S.M., Andreas, A.M., Reda, I., and Myers, D.R., National Renewable Energy Laboratory Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The ARM Program deploys approximately 100 radiometers to measure broadband solar radiation at stations in the North Slope of Alaska (NSA), Southern Great Plains (SGP), and Tropical Western Pacific (TWP) Cloud and Radiation Testbed (CART) sites. Two calibration events performed at the SGP Radiometer Calibration Facility (RCF) each year maintain radiometer calibration traceability to the World Radiometric Reference and assure reliable and uniform measurements at each CART site. Calibrations are performed using the Radiometer Calibration and Characterization (RCC)

140

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A Comparison of the TSI/WSI Cloud Fraction Estimates at the SGP A Comparison of the TSI/WSI Cloud Fraction Estimates at the SGP Slater, D.W.(a), Long, C.N.(a), and Tooman, T.P.(b), Pacific Northwest National Laboratory (a), Sandia National Laboratory (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Beginning with the installation of the Total Sky Imager (TSI) at the ARM Southern Great Plains site in July, 2000, both the TSI and the Whole Sky Imager (WSI) have operated simultaneously in close proximity to one another. Both systems produce all-sky cloud fraction estimates as part of their primary products, though each uses distinctly different methods to arrive at these estimates. The purpose of this study is to provide a link between the large body of estimates produced by the WSI before the

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141

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A Tale of Two Cirrus A Tale of Two Cirrus Poellot, M.R.(a), Mace, G.G.(b), and Arnott, W.P. (c), University of North Dakota (a), University of Utah (b), Desert Research Institute (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting On May 8, 1998, an orographically-forced cirrus layer overspread the DOE ARM Program's Southern Great Plains site and subsequently became mixed with anvil outflow from thunderstorms. These clouds were sampled in situ by the University of North Dakota Citation aircraft and remotely by an array of ground-based radar, lidar and radiometric instrumentation. The first of two aircraft flights sampled the orographic cirrus through a series of step climbs and spirals. During that time, the cloud was relatively uniform in depth and structure. Shortly after the start of the second flight, the

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Investigation of the Aerosol Indirect Effect at the Southern Great Plains Investigation of the Aerosol Indirect Effect at the Southern Great Plains Using Ground Based Remote Sensors and Modeling Feingold, G.(a), Lane, D.(b), and Min, Q.(c), NOAA/ETL (a), Rutgers University (b), ASRC, SUNY Albany (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting We are using ground-based remote sensors, supplemented by in situ measurements when available, to explore the aerosol indirect effect in non-precipitating, ice-free clouds. The study uses archived ARM data on sub-cloud aerosol extinction, cloud liquid water path, cloud optical depth, drop effective radius, and boundary layer dynamics to investigate the relationship between aerosol extinction and drop effective radius. Two approaches are being taken: the first is an empirical approach which

143

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Large Eddy Simulations of Fair-Weather Cumulus Case at SGP Site Large Eddy Simulations of Fair-Weather Cumulus Case at SGP Site Zhu, P. and Albrecht, B.A., University of Miami Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting A fair-weather cumulus (FWC) case observed on July 6, 1997 at the ARM SGP site is simulated using RAMS model. In this study, we performed a series of numerical experiments to study the basic physics underlying the FWC and the evolution of these clouds in response to the change of external forcings and conditions. The simulations indicate that the evolution of shallow cumuli is very sensitive to the initial vertical structure of moisture and the variation of the entrainment moisture fluxes. Based on the penetration theory, we are able to develop a cloud initiation parameterization using

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Results of the Atmospheric Aerosol Condensation Activity Studies Results of the Atmospheric Aerosol Condensation Activity Studies Isakov, A.A. and Golitsyn, G.S., A.M.Obukhov Institute of Atmospheric Physics Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Some new results are presented. of investigations of optical and microphysical characteristics of the atmospheric surface layer aerosol by means of spectropolarimeter The daily measurements were carried out in February - April 2000 at the Zvenigorod Scientific Station of the Institute within the Institut's ARM measurements Program. The spectropolarimeter measured the spectral dependencies of the polarization components of direct scattering coefficient D at three angles j = 450,900,1350 in spectral region l= 0.4 -0.75 mcm. During the measurement period about 500 records

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Radiative Effects of Cloud Inhomogeneity and Geometric Association over the Radiative Effects of Cloud Inhomogeneity and Geometric Association over the Tropical Western Pacific Warm Pool Jensen, M.P.(a) and DelGenio, A.D.(b), Department of Applied Physics and Applied Mathematics, Columbia University, NASA GISS (a), NASA GISS (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The radiative and microphysical characteristics for several precipitating anvil systems observed by the TRMM satellite over the Manus or Nauru Island ARM sites are modelled. Reflectivity data from the TRMM Precipitation radar and GMS satellite infrared radiometer measurements are used to parametrize the three-dimensional cloud microphysics of each precipitating cloud system. These parameterized cloud properties are used as input for a

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Mapping of Surface Reflectance over the Southern Great Plains Region from Mapping of Surface Reflectance over the Southern Great Plains Region from Multiple Satellites Trishchenko, A.P.(a), Li, Z. (a,b), and Park, W. (a), Canada Centre for Remote Sensing, Ottawa, Canada (a), Now at ESSIC, Department of Meteorology, College Park (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The ground-based ARM observations are limited to a handful of locations sparsely distributed in the South Great Plains (SGP). Mapping of surface narrow and broadband albedos are necessary for modeling and remote sensing studies to better describe the spatial variability of surface boundary conditions. In this study, we present surface narrowband and broadband reflectance, as well as the normalized difference vegetation index over the

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Cloud Property Retrieval Using Combined Ground-Based Remote Sensors Cloud Property Retrieval Using Combined Ground-Based Remote Sensors Wang, Z. and Sassen, K., University of Utah Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Radiation Measurements Program (ARM) is making measurements with diverse ground-based remote sensors. To provide more complete and accurate cloud information, it is necessary to combine diverse measurements because of the different capabilities of various sensors. In this study, a remote sensing cloud detection algorithm has been developed that can differentiate between various atmospheric targets such as ice and water clouds, virga, precipitation, and aerosol layers. Cloud type and macrophysical properties are identified by combining ground-based polarization lidar, millimeter wave radar, infrared radiometer, and dual

148

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The Radiative Properties of Uniform and Broken Stratus: An Observational The Radiative Properties of Uniform and Broken Stratus: An Observational and Modelling Study Utilizing the Independent Column Approximation for Solar Radiative Transfer Clothiaux, E.E., The Pennsylvania State University; Barker, H.W., Atmospheric Environment Service of Canada; Kato, S., Hampton University; Dong, X., Analytical Service and Materials, Inc. Ackerman, T.P., The Pennsylvania State University; Liljegren, J.C., Ames Laboratory Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Millimeter-Wave Cloud Radar (MMCR) has operated continuously at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP) site since November 11, 1996. As yet, much of the early data has not been calibrated correctly and insect contamination in the boundary layer is

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High Latitude Cloud Microphysical Properties from FTIR Data High Latitude Cloud Microphysical Properties from FTIR Data Lubin, D., Scripps Institution of Oceanography Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The ARM AERI instruments record downwelling radiance spectra with sufficient radiometric calibration to enable the retrieval of important cloud microphysical properties. This poster will describe how radiative transfer simulations that include cloud thermodynamic phase (liquid water, ice, mixed phase) can be utilized with Fourier Transform Infrared (FTIR) spectroradiometer data. The presence of the ice phase in cloud alters the slope of the brightness temperature spectrum between 800 - 1200 inverse centimeters, such that ice can often be detected. The AERI near infrared channel also may have potential for cloud phase as discrimination.

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A Compact Millimeter-Wave Radar for UAV Applications A Compact Millimeter-Wave Radar for UAV Applications Bambha, R., Carswell, J., and Swift, C., University of Massachusetts Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Assembly of the Compact Millimeter-wave Radar (CMR) has been completed at the University of Massachusetts, and ground-based cloud measurements have been acquired. The CMR is a 95-GHz solid-state radar intended for airborne cloud measurements. Funding for the project was provided by the Atmospheric Radiation Measurement-Unmanned Aerospace Vehicle (ARM-UAV) program with the eventual goal of developing a radar capable of operating on the Altus UAV. Simultaneous measurements made by CMR and the Cloud Profiling Radar System (CPRS) have been made to evaluate CMR's performance. CPRS is a larger

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Evaluation of Upper Tropospheric Water Vapor in the NCAR Community Climate Evaluation of Upper Tropospheric Water Vapor in the NCAR Community Climate Model, CCM3, Using Modeled and Observed HIRS Radiances Iacono, M.J., Delamere, J.S., Mlawer, E.J., and Clough, S.A., Atmospheric and Environmental Research, Inc. Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Upper tropospheric water vapor (UTWV) simulated by the National Center for Atmospheric Research Community Climate Model, CCM3, is evaluated by comparing modeled, clear sky, brightness temperatures to those observed from space by the High-resolution Infrared Radiation Sounder (HIRS). The climate model was modified to utilize a highly accurate longwave radiation model, RRTM, and a separate radiance module, both developed for the Atmospheric Radiation Measurement (ARM) Program. The radiance module

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3D Delta-Diffusion and IR Monte-Carlo Methods for Radiative Transfer 3D Delta-Diffusion and IR Monte-Carlo Methods for Radiative Transfer Applied to Inhomogeneous Cirrus over the ARM-SGP Site Chen, Y.(a), Liou, K.N.(a), Gu, Y.(a), Ou, S.C.(a), and Mace, G.G.(b), University of California, Los Angeles (a), University of Utah (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting An efficient method based on a full multigrid approach has been developed to solve the 3D delta-diffusion radiative transfer equation, which utilizes four-term spherical harmonics expansion for the phase function and intensity. This method first solves the inhomogeneous partial differential equation on a number of coarse grids and subsequently performs interpolation to predivided fine grids to speed up the convergence of the solution, particularly useful for cloud radiation parameterization in

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Anomalous Radiative Absorption and Unbounded Cascade Models of Cloud Anomalous Radiative Absorption and Unbounded Cascade Models of Cloud Fields Schertzer, D., and Larchevêque, M., Université P.&M. Curie, Paris, France; Lovejoy, S., McGill University; Naud, C., Blackett Laboratory, Imperial College, London Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting One of the most achieving results of Atmospheric Radiation Measurement (ARM) Program could well have been the empirical finding of the anomalous radiative absorption of the atmosphere. We demonstrate that unbounded cascade models of cloud fields, rather than bounded cascade models, could give a theoretical and quantitative understanding of this phenomenon. Indeed, the former models keep contact with the physics and coherence of the turbulent cascades (velocity, temperature and liquid water content) and

154

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Analysis of the Aerosol-Cloud Interactions from Aircraft, Surface Analysis of the Aerosol-Cloud Interactions from Aircraft, Surface Measurements, and Cloud Parcel Model During the March 2000 IOP at the ARM SGP Site Delene, D.J.(a), Dong, X.(a), Chen, Y.(b), Poellot, M.(a), and Penner, J.E.(b), University of North Dakota (a), University of Michigan (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting One of the largest uncertainties in estimating anthropogenic forcing of climate change and in predicting future climates is the relationship between atmospheric aerosols and cloud properties. Aerosols affect cloud optical properties, cloud water content and cloud lifetime. A higher aerosol number concentration generally results in the nucleation of more smaller cloud droplets, which increases cloud albedo and results in a

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Consistency of ARESE II Cloud Absorption Estimates and Sampling Issues Consistency of ARESE II Cloud Absorption Estimates and Sampling Issues Oreopoulos, L.(a), Marshak, A.(a), and Cahalan, R.F.(b), JCET – University of Maryland Baltimore County (a), NASA-GSFC (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Data from three cloudy days (March 3, 21, 29, 2000) of the ARM Enhanced Shortwave Experiment II (ARESE II) were analyzed. Grand averages of broadband absorptance among three sets of instruments were compared. Values of fractional absorptance were ~0.20-0.22 for all three days with the exception of March 3 when two sets of instruments gave values smaller by ~ 0.03-0.04. The robustness of these values was investigated by looking into possible sampling problems mainly with the aid of 500 nm spectral fluxes.

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Cirrus Cloud Statistics from a Cloud-Resolving Model Simulation Compared to Cirrus Cloud Statistics from a Cloud-Resolving Model Simulation Compared to Cloud Radar Observations Krueger, S.K. (a), Luo, Y. (a), Mace, G.G. (a), and Xu, K.-M. (b), University of Utah (a), NASA Langley Research Center (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Mace, Clothiaux, and Ackerman (2000; MCA) determined the properties of cirrus clouds derived from one year (December 1996 to November 1997) of MMCR data collected at the SGP ARM site in Oklahoma. They also used additional measurements to retrieve the bulk microphysical properties of thin cirrus cloud layers. We sampled CRM results in a way that allows direct comparison to MCA's observations and retrievals of cirrus cloud properties. This allows evaluation, in a statistical sense, of the CRM's

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Correction of Sonde Upper Tropospheric Humidity Through Radiance Correction of Sonde Upper Tropospheric Humidity Through Radiance Assimilation Soden, B.J.(a), Turner, D.D.(b), and Lesht, B.M.(c), NOAA/GFDL (a), Pacific Northwest Natinal Laboratory (b), Argonne National Laboratory (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The difficulty of measuring upper tropospheric water vapor from radiosonde instrumentation is widely recognized. Recent results from several ARM IOPs and the AFWEX field campaign have demonstrated a substantial dry bias in sonde measurements. Existing corrections for these measurements can improve the moisture concentrations at lower levels, but offer little improvement in the upper troposphere. Unfortunately, accurate measurements of upper tropospheric water vapor are necessary to constrain the transfer of

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On the Detection and Analysis of Multilayered Clouds: Comparison of MODIS On the Detection and Analysis of Multilayered Clouds: Comparison of MODIS Analyses with ARM CART Site Cloud Products Baum, B.A.(a), Nasiri, S.L.(b), and Mace, G.G.(c), NASA Langley Research Center (a), University of Wisconsin-Madison (b), University of Utah (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting We will present new ideas regarding the detection and analysis of multilayered clouds in Moderate Resolution Imaging Spectroradiometer (MODIS) imagery. Over the past year, the MODIS cloud property retrieval effort has matured considerably as algorithms have been improved and the instrument performance has been characterized more accurately. Errors caused by noise, striping, and out-of-band response have been reduced. We have developed and tested different approaches for daytime and nighttime

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Spatial Hetergeneity in Mid-Summer Fluxes of Carbon, Water and Energy in Spatial Hetergeneity in Mid-Summer Fluxes of Carbon, Water and Energy in Agriculutural Plots Near the SGP Central Facility Fischer, M.L.(a), Billesbach, D.(b), Berry, J.(c), Riley, W.R.(a), and Torn, M.S.(a), Lawrence Berkeley National Laboratory (a), University of Nebraska (b), Carnegie Institution of Washington (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Patterns of land use and management are likely to dominate the spatial heterogeneity in cycles of energy, carbon, and water in ecosystems of the Southern Great Plains (SGP). We report recent progress on measuring and modeling spatial heterogeneity in land surface-atmosphere exchange for different crops in the footprint of a flux system mounted on the ARM SGP Central Facility 60 m tower. The first phase of our the "Portable Flux

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Parameterizing the Radiative Properties of Midlatitude Clouds Parameterizing the Radiative Properties of Midlatitude Clouds Sassen, K. (a), Comstock, J.M. (b), and Wang, Z. (a), University of Utah (a), Pacific Northwest National Laboratory (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A major goal of the ARM program is to obtain the requisite information needed to improve the treatment of the radiative effects of clouds in large-scale models that ultimately must be relied on to predict the impact of human-induced activities on global climate change. The clouds of the middle and upper troposphere are especially difficult to treat because of their variable optical properties, which range from optically thin in the visible, and graybody emitters in the infrared, to dense blackbody emitters. Approaches to obtain this information involve the development of

Note: This page contains sample records for the topic "annual arm science" 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

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The Surface Shortwave Radiation Budget in the ECMWF Forecast System The Surface Shortwave Radiation Budget in the ECMWF Forecast System Morcrette, J.-J., European Centre for Medium-Range Weather Forecasts, United Kingdom Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The surface shortwave radiation (SSR) produced by the ECMWF forecast system since 1989 is studied with reference to the various versions of the shortwave radiation scheme. For the latest 6-spectral interval version, model SSR is compared with surface radiation measurements for recent periods, available as part of the Baseline Surface Radiation Network (BSRN), Surface Radiation Network (SURFRAD), and Atmospheric Radiation Measurement (ARM) programs. Comparisons on one-hour basis are emphasized to allow discrepancies to be more easily linked to differences between model

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Preliminary Analysis of Horizontal Inhomogeneity for ARESE II Clouds Preliminary Analysis of Horizontal Inhomogeneity for ARESE II Clouds Marshak, A. (a), Wiscombe, W.J. (b), Davis, A.B. (c), and Pilewskie, P. (d), UMBC/JCET (a), NASA/GSFC (b), LANL (c), NASA/Ames (d) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM Enhanced Shortwave Experiment (ARESE) II was conducted at the SGP site from February 21 through April 15, 2000. The identical set of radiometers simultaneously measured the broadband and narrowband fluxes, as well as spectral fluxes and radiances from the aircraft flying above clouds and on the ground. To escape sampling problems with only one aircraft flying a daisy pattern over the central facility, the whole experiment was focused on optically thick stratocumulus clouds. However, even heavy stratus clouds

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Evaluation of Day-Night Continuity in Retrievals of Cloud Properties from Evaluation of Day-Night Continuity in Retrievals of Cloud Properties from GOES Heck, P.W.(a), Minnis, P.(b), Khaiyer, M.M.(a), Smith, Jr., W.L.(b), Young, D.F.(b), and Nguyen, L.(b), Analytical Services & Materials, Inc. (a), NASA Langley Research Center (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Currently, multi-spectral algorithms are being used to retrieve microphysical and radiative cloud p roperties from Geostationary Operational Environmental Satellite (GOES) imagery in a near-real time over a domain that includes the ARM Southern Great Plains (SGP) site. The Visible-Infrared-Solar i nfrared-Split window Technique (VISST) and Solar infrared- Infrared-Split window Technique (SIST) a re applied to half-hourly GOES data. The VISST is utilized during daylight hours while

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A Continuous Baseline Microphysical Retrieval (MICROBASE): Status of SGP A Continuous Baseline Microphysical Retrieval (MICROBASE): Status of SGP Version 1.2 and Prototype TWP Version Miller, M.A.(a), Johnson, K.L.(a), Jensen, M.P.(b), Mace, G.G.(c), Dong, X.(d), and Vogelmann, A.M.(a), Brookhaven National Laboratory (a), Columbia University (b), University of Utah (c), University of North Dakota (d) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The interaction of clouds with incoming and outgoing radiation streams produces discontinuous regions of heating and cooling within the atmospheric column. These regions can influence the atmospheric circulations at multiple scales, as well as modify the existing cloud structures. The Broadband Heating Rate Project (BBHRP) within ARM has the goal of producing instantaneous snapshots of the heating and cooling rate

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Applications of the Aerosonde at NSA Applications of the Aerosonde at NSA Curry, J.A. and Holland, G.J., University of Colorado Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The first ARM Aerosonde flights at Barrow in April 1999 were not successful owing to the aircraft's inability to fly under severe icing conditions. However, we were sufficiently encouraged by these initial flights to pursue further developments to make feasible Aerosonde flights in the Arctic. NSF has funded a major project to establish a long-term Aerosonde facility based in Barrow. Extensive research is underway on the topic of icing mitigation. A limited but successful mission was undertaken in Barrow during August 2000. In the coming year, flights are planned for April, August 2001. We hope to be able to fly the originally proposed

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Evaluating the NCEP Global Forecast Model Clouds Evaluating the NCEP Global Forecast Model Clouds Lazarus, S.M. (a), Krueger, S.K. (a), Jenkins, M.A. (a), and Pan, H.-L. (b), University of Utah (a), National Centers for Environmental Prediction (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting As part of a collaborative effort with the National Center for Environmental Prediction (NCEP), the University of Utah is now archiving (daily) column data from the NCEP Medium Range Forecast (MRF) model. Data are collected for 8 sites, 4 of which directly coincide with ARM facilities at Manus, Nauru, Barrow, and the Southern Great Plains (SGP) Central Facility (CF). The bevy of observational data at these locations offers a unique opportunity to evaluate model performance. Because cloud feedback

167

ARM - Publications: Science Team Meeting Documents  

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Cloud Base Height Cloud Base Height Kassianov, E., Long, C., and Christy, J., Pacific Northwest National Laboratory Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting We have suggested a method for estimating Cloud Base Height (CBH) by using paired ground-based Total Sky Imagers (TSI) hemispherical observations (Kassianov and Long, 2003). Our results of the model-output inverse problem showed that, for broken clouds (single layer), moderately accurate CBH retrieval is possible. Both a TSI and a Hemispherical Sky Imager (HSI) were run simultaneously during the ARM Cloudiness Intercomparison IOP (Oklahoma, 2003). We use the data from these two instruments to evaluate the suggested method. We perform the CBH retrieval for a few fields of broken clouds (occurring at different altitudes) by using the suggested method. Then we

168

ARM - Publications: Science Team Meeting Documents  

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Impact of an Improved Longwave Radiation Model, RRTM, on the Energy Budget Impact of an Improved Longwave Radiation Model, RRTM, on the Energy Budget and Thermodynamic Properties of the NCAR Climate Model, CCM3 Iacono, M.J., Mlawer, E.J., and Clough, S.A., Atmospheric and Environmental Research, Inc. Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The effect of introducing a new longwave radiation parameterization, Rapid Radiative Transfer Model (RRTM), on the energy budget and thermodynamic properties of Version 3 of the National Center for Atmospheric Research (NCAR) Community Climate Model (CCM3) will be presented. RRTM is a rapid and accurate k-distribution radiative transfer model that has been developed for the Atmospheric Radiation Measurement (ARM) Program. Among the important features of the RRTM are its connection to radiation

169

ARM - Publications: Science Team Meeting Documents  

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A High Spectral Resolution Lidar for the Arctic - A Progress Report A High Spectral Resolution Lidar for the Arctic - A Progress Report Eloranta, E.W., Razenkov, I., Kuehn, R., Holz, R., Hedrick, J., and Garcia, J., University of Wisconsin-Madison Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The University of Wisconsin is constructing a High Spectral Resolution Lidar for deployment in the Arctic. It is designed to operate as an internet appliance and require minimal attention from an onsite attendent. It will provide continuous well calibrated profiles of optical depth, cloud phase and backscatter cross sections. Deployment at the Point Barrow ARM facility is proposed. This poster will describe progess to date. Initial testing has demonstrated that the shared transmitter/reciever telescope design functions properly. While this approach eliminates alignment

170

ARM - Publications: Science Team Meeting Documents  

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Characterizing Diurnal CO2 Cycles in the Continental Boundary Layer Using Characterizing Diurnal CO2 Cycles in the Continental Boundary Layer Using Precise Concentration Measurements and a Simple Numerical Model Torn, M.S.(a), Riley, W.(a), Rischer, M.L.(a), Biraud, S.(a), and Berry, J.(b), Lawrence Berkeley National Laboratory (a), Carnegie Institution of Washington (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting In continental regions, atmospheric CO2 profiles are strongly influenced by atmospheric dynamics as well as ecosystem and anthropogenic fluxes. Relating site level measurements or atmospheric profiles to regional CO2 budgets may require methods to represent or evaluate these influences. At the Southern Great Plains ARM-CART, we are measuring precise CO2 concentrations continuously at 2-60 m and weekly at 300 and 3300 m agl. CO2

171

ARM - Publications: Science Team Meeting Documents  

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On the Uncertainty of Inferring Absolute Cloud Fraction from Time Series of On the Uncertainty of Inferring Absolute Cloud Fraction from Time Series of Narrow Field of View Observations Ma, Y.-T.(a) and Ellingson, R. G.(b), University of Maryland at College Park (a), Florida State University (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting One way to parameterize longwave 3-D cloud effects is to relate the various cloud properties to a statistical cloud field parameter called the Probability of Clear Line of Sight (PCLS) and then to a simple integral parameter - the effective cloud fraction. In our ongoing study, we are trying to test various PCLS models with ARM cloud observations. Many of the cloud properties must be inferred from time series of zenith observations, whereas spatially averaged quantities are the ones desired. What are the

172

ARM - Publications: Science Team Meeting Documents  

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The Influence of Clouds, Aerosols, and Water Vapor on the Discrepancy The Influence of Clouds, Aerosols, and Water Vapor on the Discrepancy Between Modeled and Observed Atmospheric Absorption Arking, A. Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Daily mean estimates of atmospheric absorption of solar radiation at the ARM/SGP site are obtained for 36 days during the fall season in 1995 and 1997. They are based on broadband observations of surface flux and satellite estimates of TOA albedo. Mean absorption in the vertical column is 0.246 (expressed as a ratio with respect to the incident flux at TOA). For 13 of the days, which are entirely free of clouds, the mean absorption is 0.245. Although clouds have no systematic effect on absorption, they do have an effect---sometimes causing an increase and sometimes a decrease

173

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Validation of TERRA MODIS Cloud Properties Using Ground-Based Measurements Validation of TERRA MODIS Cloud Properties Using Ground-Based Measurements at the DOE ARM SGP Site Dong, X.(a), Xi, B.(a), Minnis, P.(b), Wielicki, B.(b), Sun-Mack, S.(c), Chen,Y.(c), and Mace, G.G.(d), University of North Dakota (a), NASA/Langley Research Center (b), SAIC, Inc. (c), University of Utah (d) Cloud macrophysical and microphysical/optical properties derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) on Terra as part of the Clouds and the Earth's Radiant Energy System (CERES) project during February 2000-December 2001 are compared to simultaneous ground-based observations. The ground-based data taken over the Atmospheric Radiation Measurement (ARM) Program Southern Great Plains (SGP) site are used as cloud truth data set in the validation of the CERES Science Team derived

174

ARM - Publications: Science Team Meeting Documents: ARM Radiative...  

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ARM Radiative Transfer Modeling and Remote Sensing Clough, Shepard Atmospheric and Environmental Research Shephard, Mark Atmospheric and Environmental Research, Inc. Mlawer, Eli...

175

ARM - Publications: Science Team Meeting Documents: ARM-UAV Instrument...  

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ARM-UAV Instrumentation Used On The Proteus Aircraft During The M-PACE Experiment McCoy, Robert Sandia National Laboratories Tooman, Tim Sandia National Laboratories The...

176

ARM - Publications: Science Team Meeting Documents  

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A Partially Prognostic Third-Order Closure Model for Modeling the Boundary A Partially Prognostic Third-Order Closure Model for Modeling the Boundary Layer Cheng, A.C.(a) and Xu, K.-M.(b), Center for Atmospheric Sciences, Hampton University (a), Atmospheric Sciences, NASA Langley Research Center (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A new partially prognostic third-order closure (TOC) model is developed to model boundary-layer clouds in this study. The model assumes joint double Gaussian distributions of vertical velocity, temperature and moisture. The first and second moments of all variables as well as the third moments of vertical velocity, liquid-water potential temperature and total water mixing ratio are predicted to determine a proper probability density function (PDF). Once the PDF is known, the rest of the third moments and

177

ARM - Publications: Science Team Meeting Documents  

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On Problems in Simulating Boundary-layer Cumulus Clouds with Third-Order On Problems in Simulating Boundary-layer Cumulus Clouds with Third-Order Turbulence Closure Models Cheng, A.(a) and Xu, K.-M.(b), Atmospheric Sciences, NASA Langley Research Center (a), Center for Atmospheric Sciences, Hampton University (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A hierarchy of third-order turbulence closure models are used to simulate boundary-layer cumulus clouds from the Atmospheric Radiation Measurement in this study. A moist spurious oscillation is found in the Level-3 model, which predicts all third moments. The period of the oscillation is about 1000 s, which is resulted from the interaction of the mean liquid water gradient and the liquid water buoyancy terms in the third-moment equations. A reasonably large diffusion coefficient and a large dissipation at its

178

Stewardship Science Academic Programs Annual | National Nuclear...  

National Nuclear Security Administration (NNSA)

Alliances Annual 2011 Stewardship Science Academic Alliances Annual Banner photo: The Texas Petawatt laser bay at the University of Texas, Center for High Intensity Laser Science...

179

ARM - Publications: Science Team Meeting Documents: Update on the ARM  

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Update on the ARM SCM/CRM multi-year continuous forcing datasets at SGP Update on the ARM SCM/CRM multi-year continuous forcing datasets at SGP Xie, Shaocheng Lawrence Livermore National Laboratory Yio, John DOE/Lawrence Livermore National Laboratory Klein, Stephen Lawrence Livermore National Laboratory Cederwall, Richard Lawrence Livermore National Laboratory Statistical study of SCM/CRM simulations requires a long-term (preferably, multiyear) large-scale forcing data. The current approach to develop such multiyear datasets at SGP is to use the NOAA mesoscale model RUC (Rapid Update Cycle) analyses constrained with the ARM surface and TOA measurements by using a variational analysis approach. Using this method, the LLNL ARM data infrastructure team developed a 2-year continuous forcing dataset for 1999-2000 two years ago. Since then, several ARM surface and

180

Tenth ARM Science Team Meeting Proceedings, San Antonio, Texas...  

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synop obs not assimilated). Tenth ARM Science Team Meeting Proceedings, San Antonio, Texas, March 13-17, 2000 2 Temperature Errors in the Tropics The model systematic...

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181

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Mining the ARM Data Set: A WWW-Staged Prototype Relational Database of ARM Data Mace, G.G. and Hudach, D.P., University of Utah Twelfth Atmospheric Radiation Measurement (ARM)...

182

ARM - Publications: Science Team Meeting Documents  

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An Anthology of Tropical Convection: Dynamical and Thermodynamical An Anthology of Tropical Convection: Dynamical and Thermodynamical Interactions and the Organization of Large-Scale Tropical Convection Webster, P.J., Program in Atmospheric and Oceanic Sciences, University of Colorado Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting There appears to be no universal relationship between large-scale organized convection and the magnitude of sea surface temperature (SST). Convection and mean precipitation maxima are often found on the equatorward side of maximum SST or even in the winter hemisphere of the tropics. Thus, there must exist other rules besides thermodynamical forcing that provide necessary conditions for convection. A survey of large-scale organized convection has been conducted in order to find necessary conditions for the

183

ARM - Publications: Science Team Meeting Documents  

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Variations in the Ratio of IR Window Radiance to Microwave Water Path Variations in the Ratio of IR Window Radiance to Microwave Water Path Observed Under Cloudless Convection Platt, C.M.(a) and Austin, R.T.(b), Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The measurement of the radiance of cirrus (and other) clouds at atmospheric window 8-13 micron wavelengths requires a correction for the water vapor radiance and transmittance below the clouds. Calculating radiances at the times of routine radiosonde ascents and interpolating the radiance/water path ratio between ascents can achieve this. However it has been observed experimentally that IR radiance/water path ratios appear to vary between radiosonde ascents away from the interpolated values. This occurs

184

ARM - Publications: Science Team Meeting Documents  

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Sun Photometer Laser and Lamp Based Radiometric Calibrations Sun Photometer Laser and Lamp Based Radiometric Calibrations Allen, D.W.(a), Souaidia, N.(a), Pietras, C.(b), Brown, S.(a), Lykke, R.(a), Frouin, R.(c), Deschamps, P.Y.(d), Fargion, G.(b), and Johnson, B.C.(a), National Institute of Standards and Technology (a), National Aeronautics and Space Administration, SAIC (b), Scripps Institution of Oceanography (c), Laboratoire d'Optique Atmospherique, France (d) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The goals of this study were to calibrate the radiometers using independent methods, evaluate the uncertainties for each method, and assess the influence of the results in terms of the science requirements. The radiometers were calibrated in irradiance and radiance mode using a monochromatic, laser-illuminated integrating sphere, in radiance mode using

185

ARM - Publications: Science Team Meeting Documents  

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Comparison of Measurements of Liquid Water Path Comparison of Measurements of Liquid Water Path Lane, D.E. (a), Fairall, C.W. (b), Hazen, D. (b), and Orr, B. (b), Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder (a), Environmental Technology Laboratory, National Oceanic and Atmospheric Administration, Boulder (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Investigation of ship-based microwave radiometer observations from the equatorial Pacific during EPIC 99 indicated anomalously high values of liquid water content during clear sky conditions. Several possible sources of error were examined including the radiative transfer model employed to the original sondings, and application of the TIP calibrations. Further research has suggested that incorrect brightness temperatures were observed

186

ARM - Publications: Science Team Meeting Documents  

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Introducing WEB_MADS Introducing WEB_MADS Dedecker, R.G., Quinn, G.M., Garcia, R.K., and Revercomb, H.E., University of Wisconsin-Madison Space Science and Engineering Center Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Multiple AERI Display System (MADS) is a software package developed to allow remote access to and viewing of the operational AERI data streams produced by remotely operated AERI instruments. The MADS system was developed some years ago and operates on stand alone Personal Computers that run the OS/2 operating system and that acquire remote AERI data via the Internet. WEB-MADS is a Web based prototype version of MADS that allows remote access to the same AERI data and information using any standard Web Browser. As was the case with the original MADS, WEB-MADS provides a means for real

187

ARM - Publications: Science Team Meeting Documents  

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The Topography of Cloud Tops The Topography of Cloud Tops Pincus, R., Gunshor, M., Space Science and Engineering Center, University of Wisconsin-Madison; Marshak, A., and Wiscombe, W., National Aeronautics and Space Administration-Goddard Space Flight Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The geometric shape of cloud top affects the amount and distribution of radiation reflected by the cloud. The angular redistribution is more relevant to remote sensing applications, while changes in the total amount of energy reflected affect cloud albedo. The difference between reflection by "bumpy" and plane-parallel clouds is greatest when both clouds and bumps are optically thick and solar zenith angle low. Quantitative assessment of these effects requires a description of topography of a cloud top. We

188

ARM - Publications: Science Team Meeting Documents  

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A Semianalytic Technique to Speed Up Successive Order of Scattering Model A Semianalytic Technique to Speed Up Successive Order of Scattering Model for Optically Thick Media Duan, M. and Min, Q., Atmospheric Sciences Research Center, State University of New York Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A semianalytic technique has been developed to speed up integration of radiative transfer over optically thick media for the successive order of scattering method. Based on characteristics of internal distribution of scattering intensity, this technique uses piece-wise analytic eigenfunctions to fit internal scattering intensities and integrates them analytically over optical depth. This semianalytic approach greatly reduces the number of sub-grids for accurately solving radiative transfer based on

189

ARM - Publications: Science Team Meeting Documents  

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Cloud-Radiation-Aerosol Experiment (1996) at IAPh, Russia Cloud-Radiation-Aerosol Experiment (1996) at IAPh, Russia Golitsyn, G.S., Anikine, P.P., and Sviridenkov, M.A., Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting In 1996, local measurements of the optical properties of the near-surface aerosol were carried out parallel with aureole measurements of the aerosol in the atmospheric column. The spectral radiation was measured by a complex of spectrometers. Global radiation was controlled by standard equipment (pyrheliometer, pyranometer, pyrgeometer). A microwave sounder was used to determine the liquid water path of clouds and water vapor content. Advanced Very High Resolution Radiometer (AVHRR) data from the National Oceanic and

190

ARM - Publications: Science Team Meeting Documents  

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Raman Lidar Characterization of the Vertical Variability of Aerosols and Raman Lidar Characterization of the Vertical Variability of Aerosols and Water Vapor Over the SGP Ferrare, R.A. (a), Turner, D.D. (b,g), Brasseur, L.H. (c), Tooman, T.P. (d), Dubovik, O. (e), Goldsmith, J.E.M. (d), Ogren, J.A. (f), and Feltz, W. (g), NASA Langley Research Center (a), Pacific Northwest National Laboratory (b), Science Applications International Corporation/NASA/LaRC (c), Sandia National Laboratories (d), SSAI/NASA Goddard Space Flight Center (e), NOAA Climate Monitoring and Diagnostics Laboratory (f), University of Wisconsin-Madison (g) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The automated Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) Raman Lidar routinely measures profiles of water vapor mixing ratio,

191

ARM - Publications: Science Team Meeting Documents  

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3-D Reconstruction of a Regional-Scale Cloud Field from Satellite Data 3-D Reconstruction of a Regional-Scale Cloud Field from Satellite Data for Use in a Broadband Monte Carlo Radiative Transfer Model Galinsky, V., Ramanathan, V., Boer, E., Podgorny, I., and Vogelmann, A. M., Center for Atmospheric Sciences-Scripps Institution of Oceanography Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting The absence of realistic 3-D cloud fields and their associated radiative transfer in current general circulation models (GCM) or radiative transfer models may result in large inconsistencies in the Earth's energy budget calculations. We investigate these effects by reconstructing the regional-scale, 3-D cloud field structure from multi-spectral satellite imagery. From this reconstruction, we compute the radiative fluxes using a

192

ARM - Publications: Science Team Meeting Documents  

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Using a MFRSR to Calculate Direct and Diffuse Broadband Measurements from Using a MFRSR to Calculate Direct and Diffuse Broadband Measurements from Global Broadband Measurements Cornwall, C.R. (a,b), Hodges, G.B. (a,b), and DeLuisi, J.D. (b), University of Colorado Cooperative Institute for Research in Environmental Sciences (a), NOAA Air Resources Lab (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Research Objective: To infer values of direct solar irradiance using data from a Multi-Filter Rotating Shadowband Radiometer (MFRSR) and a broadband pyranometer measuring global horizontal irradiance. Methodology: The MFRSR measures global and diffuse radiation over six narrow spectral bands as well as one broadband (silicon pyranometer). Values for corresponding direct normal irradiances are automatically calculated as part of the MFRSR

193

ARM - Publications: Science Team Meeting Documents  

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Cloud-Resolving Simulations of Boundary-Layer Cloud Regimes with a Cloud-Resolving Simulations of Boundary-Layer Cloud Regimes with a Third-Order Turbulence Cheng, A.(a,b) and Xu, K.-M.(a), Atmospheric Sciences, NASA Langley Research Center (a), Hampton University (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting LES (large eddy simulation) models can explicitly resolve large turbulent eddies, which contain m ost of the turbulent kinetic energy and do most of the transport in the boundary layer. These edd ies have to be parameterized in cloud-resolving models (CRMs), which have much coarser resolution . A sophisticated turbulent parameterization is needed in order to produce adequate simulations o f cloud processes in CRMs. Most CRMs use a one- and a half-order prognostic turbulent kinetic ene rgy closure. Third-order

194

ARM - Publications: Science Team Meeting Documents  

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Availability and Status of MISR Geophysical Data Products Availability and Status of MISR Geophysical Data Products Diner, D.J. and the MISR Science Team, Jet Propulsion Laboratory, California Institute of Technology Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Multi-angle Imaging SpectroRadiometer (MISR) instrument aboard the Terra spacecraft has been collecting Earth imagery since February 2000. MISR contains nine cameras pointed at fixed along-track directions, and acquires images with view angles at the Earth’s surface ranging from 70.5º forward of nadir to 70.5º aftward, in four spectral bands. The MISR experiment routinely generates geophysical data products using new algorithms developed specifically to capitalize on MISR's observational strategy. Included among these products are aerosol optical depths and

195

ARM - Publications: Science Team Meeting Documents  

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Spectral Diffuse Irradiance in UV, VIS, and NIR During the 2001 Diffuse IOP Spectral Diffuse Irradiance in UV, VIS, and NIR During the 2001 Diffuse IOP Kiedron, P., Michalsky, J., Berndt, J., Min, Q., and Harrison, L., Atmospheric Sciences Research Center, SUNY Albany, New York Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Two rotating shadowband spectroradiometers (RSS) participated in the 2001 Diffuse IOP. The UV-RSS covered the 300-360 nm range and the VIS-NIR RSS covered 360-1050 nm. Both instruments were calibrated with NIST traceable spectral irradiance. The two instruments were able to measure approximately 95% of total diffuse radiation for clear-sky conditions. The missing shortwave infrared beyond 1050 nm is estimated with a model in order to calculate a total shortwave irradiance. The results are compared with

196

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Detection of Thin Cirrus using a Combinaton of 1.38-um Reflectance and Detection of Thin Cirrus using a Combinaton of 1.38-um Reflectance and Window Brightness Temperature Difference Roskovensky, J.K. and Liou, K.N., Department of Atmospheric Sciences University of California, Los Angeles Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A new cloud detection scheme has been developed that utilizes 1.38-um reflectance in combination with 8.6-11 um brightness temperature difference to detect cirrus clouds. The 1.38-um channel on board MODIS is useful in detecting thin cirrus due to its high sensitivity to upper tropospheric clouds and a nearly negligible sensitivity to low-level reflectance. Dependent upon neighboring cloud type, water vapor concentration, and the viewing geometry, specific 1.38-um reflectance threshold levels can be

197

ARM - Publications: Science Team Meeting Documents  

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Lidar Remote Sensing of Cirrus Clouds at the Southern Great Plains Site: Lidar Remote Sensing of Cirrus Clouds at the Southern Great Plains Site: Comparisons of Extinction and Backscatter Coefficients Derived Using Raman and Backscatter Lidar Technique Comstock, J.M.(a), Fu, Q.(b), Turner, D.D.(c), and Ackerman, T.P.(a), Pacific Northwest National Laboratory (a), Department of Atmospheric Sciences, University of Washington (b), University of Wisconsin/Pacific Northwest National Laboratory(c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Horizontal and vertical inhomogeneity of cirrus clouds is an important issue in radiation modeling and the representation of cirrus clouds in general circulation models (GCMs). Lidar remote sensing is a useful tool for determining the vertical structure of cirrus clouds. Backscatter

198

ARM - Publications: Science Team Meeting Documents  

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of Global Climate Models Using ARM Data Stephens, G.L., Gabriel, P., and Wood, N.B., Colorado State University Twelfth Atmospheric Radiation Measurement (ARM)...

199

ARM - Publications: Science Team Meeting Documents: ARM Site Atmospheric  

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ARM Site Atmospheric State Best Estimates for AIRS Forward Model and ARM Site Atmospheric State Best Estimates for AIRS Forward Model and Retrieval Validation Tobin, David University of Wisconsin-Madison Revercomb, Henry University Of Wisconsin-Madison Knuteson, Robert University Of Wisconsin Feltz, Wayne University of Wisconsin Moy, Leslie University of Wisconsin-Madison Lesht, Barry Argonne National Laboratory Cress, Ted Pacific Northwest National Laboratory Strow, Larrabee Hannon, Scott Fetzer, Eric Jet Propulsion Laboratory The Atmospheric Infrared Sounder (AIRS) on the EOS Aqua platform is the first of a new generation of advanced hyperspectral atmospheric sounders with the capability of retrieving temperature and trace gas profiles with high vertical resolution and absolute accuracy. In the past few years ARM has played a major role in the validation of AIRS, including the launch of

200

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Analysis of Humidity Halos Around Trade Wind Cumulus Clouds Analysis of Humidity Halos Around Trade Wind Cumulus Clouds Lu, M.-L.(a), Wang, J.(b), Freedman, A.(c), Jonsson, H.H.(d), Flagan, R.C.(a), McClatchey, R.A.(c), and Seinfeld, J.H.(a), California Institute of Technology (a), Brookhaven National Laboratory (b), Aerodyne Research, Inc. (c), Naval Postgraduate School (d) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Regions of enhanced humidity in the vicinity of cumulus clouds, so-called cloud halos, reflect features of cloud evolution, exert radiative effects and may serve as a locus for new particle formation. We describe here the results of an aircraft sampling campaign carried out near Oahu, Hawaii from July 31- Aug. 10, 2001, aimed at characterizing the properties of trade wind cumulus cloud halos. An Aerodyne Research Inc. fast spectroscopic

Note: This page contains sample records for the topic "annual arm science" 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

ARM - Publications: Science Team Meeting Documents  

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Radar Observations of Large-Eddy Circulations and Turbulence in Boundary Radar Observations of Large-Eddy Circulations and Turbulence in Boundary Layer Clouds Albrecht, B.A. and Kollias, P., Umiversity of Miami Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting With the development and application of Doppler short wavelength radars, there has been an increased capability for explicitly resolving the vertical structure of boundary layer cloud circulations. Further, Doppler mm-wavelength radars used in a vertically pointing mode can provide information on the turbulence structure within the cloud volume sampled by the radar. Since these radar large eddy observations (LEO) are of the same resolution as that of Large Eddy Simulation models, they provide a means for explicitly evaluating LES (LEO for LES). Further the radar observations

202

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Full Spectrum Correlated-k for Shortwave Atmospheric Radiative Transfer Full Spectrum Correlated-k for Shortwave Atmospheric Radiative Transfer Pawlak, D.T.(a,b), Clothiaux, E.E.(a), Modest, M.M.(c), and Cole, J.N.S.(a), Department of Meteorology, The Pennsylvania State University (a), Air Force Institute of Technology, Civilian Institutions Graduate Programs Division (b), Department of Mechanical Engineering, The Pennsylvania State University (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Fast and accurate atmospheric radiation heating and cooling rate calculations are important for improving global climate and numerical weather prediction model performance. The radiative transfer calculations in atmospheric models must be fast so that the underlying methods can actually be implemented in the models and the calculations must be accurate

203

ARM - Publications: Science Team Meeting Documents  

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The Absorption of NIR Solar Radiation by Precipitation The Absorption of NIR Solar Radiation by Precipitation Evans, W.F.J.(a) and Puckrin, E.(b), Physics Department, Trent University (a), DRDC,Canada (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting It has recently been shown by Ackerman (Physics Today; 2003) that good radiation codes can model the absorption of up to 100 W/m2 of short wave by clouds. However, spectral measurements of the transmission of solar infrared radiation through clear and cloudy skies with FTIR spectroscopy have indicated that still are certain clouds which absorb unexpectedly large amounts of near-infrared (NIR) radiation. The amounts are unexpected in the sense that radiation codes, including sophisticated algorithms such as MODTRAN4, do not model this strong NIR absorption effect. The absorption

204

ARM - Publications: Science Team Meeting Documents  

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Aerosol Enhancement of Cloud Albedo Shown by Satellite Measurements and Aerosol Enhancement of Cloud Albedo Shown by Satellite Measurements and Chemical Transport Modeling Schwartz, S.E. (a), Harshvardhan (b), and Benkovitz C.M.(a), Brookhaven National Laboratory (a), Purdue University (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The Twomey effect of enhanced cloud droplet concentration, optical depth, and albedo due to anthropogenic aerosols is thought to contribute substantially to radiative forcing of climate change over the industrial period. Present model-based estimates of this indirect forcing are highly uncertain. Increased cloud drop concentration and decreased effective radius indicative of the indirect effect have previously been shown in interhemispheric comparisons of satellite remote sensing data, but efforts

205

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The Darwin 2005 IOP The Darwin 2005 IOP May, P.T.(a), Jakob,C.(a), Long, C.N.(b), and Keenan, T.D.(a), Bureau of Meteorology Research Centre (a), Pacific Northwest National Laboratory (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A major field project is planned for Darwin in January to February 2005. Amongst its aims are the study of the structure and evolution of cirrus in monsoonal convection and how it differs from coastal and island storm generated cirrus, providing a data set suitable for CRM and SCM single column modeling efforts and validation of ground based remote sensors. Northern Australia experiences three distinct cloud regimes, a pronounced dry season, a transition season dominated by deep coastal convection and continental squall lines and a monsoon where the convection has a

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A Climatology of Cloud & Radiative Properties Derived from GMS-5 Data Over A Climatology of Cloud & Radiative Properties Derived from GMS-5 Data Over the Tropical Western Pacific Nordeen, M.L.(a), Doelling, D.R.(a), Khaiyer, M.M.(a), Rapp, A.D.(a), and Minnis, P.(b), Analytical Services & Materials, Inc. (a), National Aeronautics and Space Administration-Langley Research Center (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Satellite derived cloud and radiative properties can provide continuous spatial and temporal coverage over the Tropical Western Pacific (TWP). The TWP is an area with few meteorological stations, but is an interesting region in global climate studies. Starting with the Nauru99 Intensive Operational Period (IOP) (June-July 1999), two years of hourly Geostationary Meteorological Satellite (GSM-5) images are used in the

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Resolving Models as Scaffolding for Cloud Parameterizations in Resolving Models as Scaffolding for Cloud Parameterizations in Large-Scale Models Pincus, R.(a), Klein, S.A.(b), Hannay, C.(a), and Xu, K.-M.(c), NOAA-CIRES Climate Diagnostics Center (a), NOAA Geophysical Fluid Dynamics Laboratory (b), NASA Langley Research Center (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The treatment of clouds in large scale models has evolved from fixed to diagnostics to predictive as the importance of cloud feedbacks has become clear. In development now are schemes which account for the resolution-dependent sub-grid scale variability in condensate, which is thought to be a significant factor driving ad hoc model tuning. Parameterizations have their roots in theory, experiment, and observational data. It's very hard, though, to observe the four-dimensional structure of

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Some Results of the Comparison of the Solar Almucantar Sky Brightness Some Results of the Comparison of the Solar Almucantar Sky Brightness Observed Under the Cirri Conditions and the Calculated One Petrushin, A.G.(b), Shukurov, A.K.(a), Shukurov, K.A.(a), and Golitsyn, G.S.(a), A.M. Obukhov Institute of Atmospheric Physics, RAS (a), Institute of Experimental Meteorology, NPO "Typhoon" (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The selected measurements of the solar almucantar sky brightness were carried out at the Zvenigorod Research Facility of the A.M.Obukhov Institute of Atmospheric Physics (IAPh) RAS using the scanning photometer [1] developed in IAPh. These measurements were took place at the cloudy sky and the clear one and at various optical depth t that was controlled with

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A Continuous Initial Estimate of Cloud Microphysical Structure Using A Continuous Initial Estimate of Cloud Microphysical Structure Using Surface-Based Remote Sensors and Parameterized Microphysics Miller, M.A. and Johnson, K.L., Brookhaven National Laboratory Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Realistic heating rate profiles require an accurate and continuous accounting of cloud microphysical structure. To date, several highly constrained microphysical retrieval algorithms have been designed that operate on specific cloud systems. These algorithms are sufficiently specialized that they are generally applicable in a relatively narrow range of conditions. When these conditions are satisfied, heating profiles can be computed. While it may be possible to link several of these specialized algorithms to produce a semi-continuous description of cloud microphysical

210

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Effective Diameter in Radiation Transfer: Definition, Applications and Effective Diameter in Radiation Transfer: Definition, Applications and Limitations Mitchell, D. L., Desert Research Institute Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Although the use of an effective radius for radiation transfer calculations in water clouds has been common for many years, the export of this concept to ice clouds has been fraught with uncertainty. A consensus appears to be building that a general definition of effective diameter, Deff, should involve the ratio of the size distribution (SD) volume (at bulk density) to projected area. This work further endorses this concept, describes its physical basis in terms of an effective photon path, and demonstrates the equivalency of a derived Deff definition for both water and ice clouds.

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Mean 3D Radiative Transfer in Cloudy Columns: Further Empirical Evidence Mean 3D Radiative Transfer in Cloudy Columns: Further Empirical Evidence for Propagation Kernels with Power-Law Tails Davis, A.B. (a), Marshak, A. (b), and Barker, H.W. (c), Los Alamos National Laboratory (a), NASA Goddard Space Flight Center (b), Meteorological Service of Canada (c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting For reasons of computational efficiency, current radiation parameterizations in GCMs are uniformly based on analytical 2-stream solutions of the 1D integro-differential radiative transfer equation (RTE). This is true even when there is an effort to account for subgrid variability which would normally call for the full 3D RTE. Indeed, state-of-the-art GCM radiation schemes use linear combinations of clear-

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Combination of the Separation of Variable and the T-matrix Method for Combination of the Separation of Variable and the T-matrix Method for Computing Optical Properties of Spheroidal Particles Schulz, F.M., Eide, H.A., and Stamnes, K., University of Alaska, Fairbanks; Stamnes, J.J., University of Bergen, Norway Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting The growing interest in nonspherical particles in recent years has led to significant improvements of various light scattering models for different kinds of nonspherical particles. One approach is to model size-shape distributions of randomly oriented particles by spheroids, whose light scattering properties can be rigorously calculated with the separation of variable method (SVM). The SVM can be used to model particles with spheroidal shapes departing significantly from sphericity. In contrast, the

213

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Empirical Model of Aerosol Uplifting from the Arid Area Empirical Model of Aerosol Uplifting from the Arid Area Gorchakov, G.I., Shukurov, K.A., and Golitsyn, G.S., A.M. Obukhov Institute of Atmospheric Physics, RAS Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The model enables to make the estimates of the vertical fluxes of arid aerosol using measured data of the wind velocity. The model includes the following main elements: 1. The parameterization of the microstructure of the aerosol uplifted from the area. 2. Relationship between wind velocity and the submicron aerosol concentration. 3. The aerosol uplifting rates. It is found that there is the synchronism of the submicron and coarse aerosol fluctuation in convective conditions at the arid area. Vertical turbulent fluxes of the aerosol were determined regarding two regimes of aerosol

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Combination of Temperature and Humidity Profiles from a Scanning 5-mm Combination of Temperature and Humidity Profiles from a Scanning 5-mm Radiometer and MWR-Scaled Radiosondes During the 1999 Winter NSA/AAO Radiometer Experiment Westwater, E.R.(a), Leuski, V.(a), and Racette, P.(b), CIRES, University of Colorado/NOAA-ETL (a), NASA/ Goddard Space Flight Center (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting A scanning 5-mm-wavelength radiometer was deployed during an Intensive Operating Periods (IOP) at the Atmospheric Radiation Measurement Program's Cloud and Radiation Testbed (CART) facilities. at the North Slope of Alaska/Adjacent Arctic Ocean site near Barrow, Alaska, during March of 1999. One goal was to evaluate the ability of an oxygen-band 5-mm microwave radiometer for measuring sharp temperature inversions that are typical

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Influence of Smoke over Haze on Heating Rate and Radiative Forcing: Influence of Smoke over Haze on Heating Rate and Radiative Forcing: Consistency of Measurements from Aircraft, Ground and Satellite Vant-Hull, B., Taubman, B.F., and Li, Z., Department of Meteorology, University of Maryland, College Park Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting On 8 July 2002, heavy and widespread smoke advected from fires in Quebec to the eastern seaboard of the US, rending an interesting aerosol scenario with strong absorbing aerosols (smoke) overlying scattering aerosols (industrial pollution). An aircraft equipped with a variety of aerosol and chemical sensors flew over five locations in Virginia and Maryland. This study evaluates the consistency of aerosol measurements made by a suite of air-borne, space-borne and ground-based instruments and evaluates the

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A New Approach for Computing Single Scattering Properties of Ice Clouds A New Approach for Computing Single Scattering Properties of Ice Clouds Using a Size-Shape Distribution of Spheroidal Particles Eide, H.A., and Stamnes, K., University of Alaska, Fairbanks; Stamnes, J.J., University of Bergen, Norway; Schulz, F.M., University of Rochester Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Clouds are of paramount importance for the global energy balance and hence for our climate. In global circulation models (GCMs), designed to predict future climate, the effects of clouds are commonly based on the scattering and absorption properties of spherical particles. At high latitudes as well as at high enough altitudes anywhere on our planet, clouds frequently consist of ice particles that are far from spherical in shape. Ice

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Spurious Oscillation in Simulating Boundary-Layer Cumulus Clouds with Spurious Oscillation in Simulating Boundary-Layer Cumulus Clouds with Third-Order Turbulence Closure Models Fischer, M.L.(a), Billesbach, D.P.(b), Riley, W.J.(a), Berry, J.A.(c), and Torn, M.S.(a), E.O. Lawrence Berkeley National Laboratory (a), University of Nebraska (b), Carnegie Institution of Washington (c) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Spatial heterogeneity in the mass and energy fluxes in the Southern Great Plains are controlled by a combination of driving variables (e.g. climate, topography and soil, vegetation, and land use and management). Accurate estimation of landscape-averaged ecosystem-atmosphere exchange hence suggests the need for predictive models tested with extensive ground based measurements and/or a measurement method with regional coverage. This is

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Scale Analysis of Spatial and Temporal Variability of Aerosol Optical Scale Analysis of Spatial and Temporal Variability of Aerosol Optical Properties Over the SGP Site based on MFRSR and MODIS Data Alexandrov, M.D.(a,b), Marshak, A.(b), Cairns, B.(a,b), Lacis, A.A.(b), and Carlson, B.E.(b), Columbia University (a), NASA (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting We present scale-by-scale analysis of variability of atmospheric aerosol optical thickness (AOT) and (preliminary) of the Angstrom exponent. This analysis is based on retrievals from Multi-Filter Rotating Shadowband Radiometers (MFRSRs) and from Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data. This type of analysis has been applied to a remote sensing aerosol dataset for the first time. The MFRSR data were collected

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Using Time-Height Cross-Sections of Cumulus Cloud Fields for Solar Using Time-Height Cross-Sections of Cumulus Cloud Fields for Solar Radiative Transfer Pincus, R.(a), Hannay, C.(a), and Evans, K.F.(b), NOAA-CIRES Climate Diagnostics Center (a), University of Colorado (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting How much must be known about a cloud field in order to accurately compute the reflected and transmitted flux? Given our limited abilities to measure the time-evolving three-dimensional structure of clous, and the high cost of making three-dimensional (3D) radiative transfer computations, we would like to determine the accuracy of various approximations used to convert remote sensing observations to domain averaged solar fluxes. We use highly resolved (50 m, 1 min) clouds fields from large eddy simulations of

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Retrieval of Cirrus Particle Sizes Using a Spit-Window Technique: A Retrieval of Cirrus Particle Sizes Using a Spit-Window Technique: A Sensitivity Study Fu, Q. (a) and Sun, W.B. (b), University of Washington (a), Dalhousie University (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The 8 - 12 um atmospheric window is an important spectral region for the remote sensing of the earth-atmosphere system. Since clouds are the major regulator of the global radiative energy budget, numerous methods have been developed to detect clouds and cloud properties based on satellite observations. Among them are the split-window techniques which are particularly useful for remote sensing of cirrus clouds. Owing to the large spectral variation of ice's imaginary refractive index over the atmospheric window, one can infer the effective ice particle sizes of cirrus clouds

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Passive Remote Sensing of Aerosol Properties from Aircraft Measurements Passive Remote Sensing of Aerosol Properties from Aircraft Measurements Over the SGP Cairns, B. (a), Lacis, A.A. (b), Carlson, B.E. (b), Alexandrov, A. (a), and Barnard, J.C. (c), Columbia University (a), NASA Goddard Institute for Space Studies (b), Pacific Northwest National Laboratory (c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The principal difficulties in retrieving aerosol loadings and microphysical properties using passive remote sensing measurements over land surfaces are the significant spectral and spatial variations in the observed intensities that are caused by the land surface. The may also be of use in remote sensing of the surface, being indicative of its roughness, or in the case of vegetation its leaf inclination distribution. It is believed that the

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Intial Results from an Automated High Spectral Resolution Lidar Intial Results from an Automated High Spectral Resolution Lidar Eloranta, E.W., University of Wisconsin-Madison Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting An automated High Spectral Resolution Lidar constructed at the University of Wisconsin is nearly ready for an Arctic deployment. It is designed for remote operation as an Internet appliance requiring only minimal onsite attention. The system is currently installed in our roof top laboratory and is operating continuously as part of an extended shakedown test. Several months of data have been collected and archived on our web site (see arctic HSRL at "lidar.ssec.wisc.edu"). A web interface to browse and visualize data is provided along with tools to generate calibrated plots of

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The Use of Performance Metrics to Enhance Meteorological Operations The Use of Performance Metrics to Enhance Meteorological Operations Jakob, C.(a), Pincus, R.(b), Hannay, C.(b), and Xu, K.-M.(c), BMRC (a), NOAA/CIRES CDC (b), NASA Langley (c) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting It is highly desirable to use cloud radar data in the evaluation of model simulations of clouds at various scales. Unfortunately there is an inherent mismatch between the spatial and temporal scales of the models and the observations. Usually this mismatch is overcome by time-averaging the observations and declaring the averages as representative for a given model spatial scale. Here we explore an alternative method of model evaluation that is based on the interpretation of model cloud predictions as probabilistic forecasts at the observation point. First we contrast

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Narrowband, Narrow Field-of-View Fast Infrared Filter Radiometry: Future Narrowband, Narrow Field-of-View Fast Infrared Filter Radiometry: Future Operation at CART Sites and Some Aspects of Water Vapor Absorption and Emission Platt, C.M.R. (a), Bennett, J.A. (b), Petraitis, B. (b), Austin, R.T. (a), and Young, S.A. (b), Colorado State University, Fort Collins (a), CSIRO Atmospheric Research, Aspendale, Australia (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting An infrared filter radiometer is being installed at the SGP CART site early in 2001. The radiometer is based on a previous Mark I version that was used successfully in field experiments in tropical Australia. The radiometer has a narrow field-of-view, compatible with lidar, is fast, at one-second-time constant, and has three channels at 8.62, 10.86 and 12.12 microns. It

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The North Slope of Alaska CART and Arctic Change 2002 The North Slope of Alaska CART and Arctic Change 2002 Zak, B.D., Zirzow, J.A., and Einfeld, W., Sandia National Laboratories Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The North Slope of Alaska/Adjacent Arctic Ocean (NSA/AAO) Cloud and Radiation Testbed (CART), operational since spring of 1998, is maturing just in time for the push to understand the far-reaching changes in the Arctic presently occurring. From the mid 1970s to the mid 1990s, arctic sea ice areal coverage has decreased about 5%, but ice thickness appears to have decreased about 40%. In addition, temperature and salinity patterns in the Arctic Ocean and the associated thermohaline circulation have been affected, as have many other climate-related processes. An Arctic

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Importance and Parameterization of Longwave Radiative Scattering by Mineral Importance and Parameterization of Longwave Radiative Scattering by Mineral Aerosols Gautier, C., Dufresne, J.-L., and Ricchiazzi, P.J., University of California Santa Barbara Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The effect of scattering is not always included in longwave models of radiative forcing due to mineral aerosols. In this presentation, we quantify and highlight the importance of scattering in the longwave domain for a wide range of conditions commonly encountered during dust events. We show that the neglect of scattering may lead to an underestimate of longwave aerosol forcing. This underestimate may reach 50% of the forcing at the top of atmosphere and 15% at the surface for aerosol effective radius greater than a few tenths of a micron. In contrast, the heating rate

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Comparisons Between Measured and Modeled Longwave Irradiances During Arctic Comparisons Between Measured and Modeled Longwave Irradiances During Arctic Winter: Results from the Second International Pyrgeometer and Absolute Sky-Scanning Radiometer Comparison (IPARSC-II) Marty, Ch.(a), Storvold, R.(a), Philipona, R.(b), Delamere, J.(c), Dutton, E.(d), Michalsky, J.(e), Stamnes, K.(f), Eide, H.(f), and Stoffel, T.(g), Geophysical Institute, University of Alaska Fairbanks (a), World Radiation Center, Davos, Switzerland (b), Atmospheric and Environmental Research, Boston (c), Climate Monitoring and Diagnostics Laboratory NOAA, Boulder (d), State University of New York at Albany (e), Stevens Institute of Technology, Hoboken, New Jersey (f), National Renewable Energy Laboratory, Golden (g) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting

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AERI-Lidar Retrievals of Ice Cloud Physical Properties, Including the First AERI-Lidar Retrievals of Ice Cloud Physical Properties, Including the First Estimates of Photon Tunneling Contributions to Absorption Mitchell, D.L.(a) and DeSlover, D.H.(b), Desert Research Institute (a), Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Emitted Radiance Interferometer (AERI) and the High Spectral Resolution Lidar (HSRL) have been used to determine the spectral dependence of alpha in the window region (8.5-12.5 micron wavelength), where alpha is the ratio of optical depth at a visible wavelength to infrared absorption optical depth for a cirrus cloud. Using alpha and cloud emissivity measurements, it is generally possible to retrieve effective

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Links Between Mesoscale Dynamics and Cloud Water in High-Resolution March Links Between Mesoscale Dynamics and Cloud Water in High-Resolution March 2000 RAMS Simulations Weaver, C.P.(a), Gordon, N.D.(b), Norris, J.R.(b), and Klein, S.A.(d), Rutgers University (a), Scripps Institution of Oceanography (b), NOAA/GFDL (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Regional Atmospheric Modeling System (RAMS) is applied as a tool for improving our understanding of sub-GCM-grid-scale cloudiness. Specifically, we use high-resolution simulations of March 2000 IOP days to identify the important mesoscale dynamic and thermodynamic controls on cloud water distributions. The resolution dependence of the simulated results is also investigated as a way to identify potential deficiencies in coarser-resolution models, such as GCMs. The main finding from the

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ERBE OLR and Cloud Type by Split Window ERBE OLR and Cloud Type by Split Window Inoue, T.(a) and Ackerman, S.A.(b), Meteorological Research Institute (a), University of Wisconsin (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Using collocated ERBE and split window/AVHRR on board NOAA-9, we studied the relationship between cloud type and OLR. NOAA operational OLR estimation is based on flux equivalent temperature defined by the narrow band TBB. We found the relationship between ERBE OLR and brightness temperature (TBB) was different depending on cloud type classified by the split window. The brightness temperature difference between the split window (BTD) is a good indicator of water vapor amount and cloud optical properties. Therefore, we use the TBB and BTD to determine the regression

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Implementing Flexible Cloud Vertical Structure in GFDL's AM-2 Large-Scale Implementing Flexible Cloud Vertical Structure in GFDL's AM-2 Large-Scale Model Using Stochastic Clouds Pincus, R.(a), Klein, S.A.(b), and Hemmler, R.(b), NOAA-CIRES Climate DiagnosticsCenter (a), Geophysical Fluid Dynamics Laboratory (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Cloud vertical structure has a significant impact on radiation and precipitation fluxes, which can then feed back to the general circulation. In large-scale models with partial cloudiness in each grid cell, this structure is usually imposed in the form of "overlap assumptions," which are typically implemented separately in the radiation and precipitation codes. To date, GFDL's global atmospheric model AM-2 has used the random overlap assumption, which is easy to implement but known to be unrealistic

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Aerosol-Cloud-Radiation Interaction: A Comparison of GCM Results versus Aerosol-Cloud-Radiation Interaction: A Comparison of GCM Results versus Surface Observations Liepert, B.G., Lamont-Doherty Earth Observatory of Columbia University; Lohmann, U., Dalhousie University, Halifax, Canada Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The change in cloud properties due to increased anthropogenic emissions of aerosols and their precursor gases is referred to as "indirect aerosol effect." Estimates with general circulation models (GCMs) assumed that an increase in aerosol concentration would lead to a cooling effect of about -1Wm2. To evaluate the anthropogenic indirect aerosol effect, we compared two ECHAM GCM experiments with long-term surface observations covering the United States and Germany. The model prognosticates the number of cloud

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Terminal Velocities of Droplets and Crystals: Power Laws with Continuous Terminal Velocities of Droplets and Crystals: Power Laws with Continuous Parameters Over the Size Spectrum Khvorostyanov, V.I. and Curry, J.A., University of Colorado Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting This paper presents a unified treatment of cloud particle fall velocities Vt for both liquid and crystalline cloud particles over the entire size range observed in the atmosphere. The fall velocity representation is formulated in terms of the Best (or Davies) number X and the Reynolds number Re. For the power law representations used in many applications, and with D being the particle diameter (or maximum length), the coefficients aRe, bRe, av, bRe are found as the continuous analytical functions of X or D over the entire hydrometeors size range. Analytical asymptotic solutions

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An Analytic Solution of Two-Stream Stochastic Radiative Transfer in An Analytic Solution of Two-Stream Stochastic Radiative Transfer in Spatially Correlated Media Hu, Y.X.(a) and Davis, A.B.(b), NASA Langley Research Center (a), Los Alamos National Laboratory (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting In situ cloud microphysics measurements show spatial auto-correlations of extinction cross sections over a wide range of scales. At some of those scales, homogeneity and independent-column assumptions fail and a three-dimensional treatment of the radiative transfer is required to capture the effect of the correlations. A simple differential form of transport equation is developed for correlated media in order to account for the first-order impact of the spatial auto-correlations. Two-stream

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Optical and Microphysical Characteristics of the Smoke Aerosol in the Optical and Microphysical Characteristics of the Smoke Aerosol in the Moscow Region During the Summer-Autumn of 2002 Gorchakov, G.I.(a), Golitsyn, G.S.(a), Anikin, P.P.(a), Emilenko, A.S.(a), Isakov, A.A. (a), Kopeikin, V.M.(a), Rublev, A.N.(b), Sviridenkov, M.A.(a), and Shukurov, K.A.(a), A.M.Obukhov Institute of Atmospheric Physics, RAS (a), Russian Research Center "Kurchatov Institute" (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Observational results will be presented for the optical and microphysical characteristics of the smoke aerosol produced by wild fires at peatbogs in the Moscow region during the July-September of 2002. Characteristics in the visual range and mass concentration of the submicron aerosol had been

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Aerosol Absorption, Optical Depth and Vertical Extent Estimates Using Aerosol Absorption, Optical Depth and Vertical Extent Estimates Using UV/blue Satellite Measurements Cairns, B., and Alexandrov, M.D., Columbia University; Carlson, B.E., and Lacis, A.A., NASA Goddard Institute for Space Studies Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting The radiative balance of the atmosphere and the climatological response of the atmospheric circulation to changes in aerosol loading is principally determined by the vertical extent and single-scatter albedo of the aerosols. Although UV radiance measurements made by the Total Ozone Mapping Experiment Spectrometer (TOMS) instrument have been used to detect UV absorbing aerosols and estimate their properties, the unknown verticalextent of the aerosol affects the sensitivity of the radiances to

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Inferring Cloud Optical Depth Using Spectrally Varying Surface Albedo: Inferring Cloud Optical Depth Using Spectrally Varying Surface Albedo: Frozen Turbulence vs. Time Evolution Barker, H.W.(a), Pavloski, C.F.(b), Ovtchinnikov, M.(c), Kassianov, E.(c), Clothiaux, E.E.(b), and Marshak, A.(d), Meteorological Service of Canada (a), The Pennsylvania State University (b), Pacific Northwest National Laboratory (c), UMBC/NASA-GSFC (d) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Barker and Marshak (2001) proposed a method for inferring cloud optical depth from measurements of surface spectral radiance and irradiance made close to, but on either side of, wavelength 700 nm (approximately where absorption by chlorophyll ends). Their method has been tested by applying a Monte Carlo photon transport algorithm to cloud fields simulated by

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A First Look at the Radiative Impact of Tropical Cirrus Systems Encountered A First Look at the Radiative Impact of Tropical Cirrus Systems Encountered During CRYSTAL-FACE Pilewskie, P. (a), Gore, W. (a), Rabbette, M. (b), Howard, S. (b), and Pommier, J. (b), NASA Ames Research Center (a), Bay Area Environmental Research Institute (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting During the 2002 CRYSTAL-FACE experiment we deployed identical solar spectral and broad-band infrared sensors on the ER-2 and CIRPAS Twin Otter in order to characterize the column radiative energy budget in the tropical atmosphere under varying conditions such as thick anvil cirrus, thin sub-visible cirrus, and cloud free conditions. The data are used to determine cirrus and clear sky heating and cooling rates. The solar spectral reflectance and transmittance data are used to infer cloud

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Inferring Cloud Properties from Narrow-Field-of-View Spectral Radiometers Inferring Cloud Properties from Narrow-Field-of-View Spectral Radiometers Marshak, A.(a), Knyazikhin, Y.(b), Evans, K.(c), and Wiscombe, W.(a), NASA/GSFC (a), Boston University (b), UMBC/JCET (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The most common approach for retrieving cloud optical depth from ground-based observations uses downwelling fluxes measured by pyranometers and Multi-Filter Rotating Shadowband Radiometers (MFRSR). The key element in both retrieval techniques is the one-to-one mapping of the "observed" fluxes into cloud optical depth through plane-parallel radiative transfer. Both methods are expected to work well only for completely overcast clouds giving an effective optical depth for the whole sky. To infer cloud optical

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Diurnal Cycle of Convection, Clouds, and Water Vapor in the Tropical Diurnal Cycle of Convection, Clouds, and Water Vapor in the Tropical Upper Troposphere Soden, B.J., NOAA/GFDL Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The presence of large diurnal variations in convection over the tropics is well documented. The amplitude of the diurnal cycle is typically largest over land areas, but important variations are also observed over oceans. Precipitation, for example, generally peaks in the early evening over tropical land regions and in the early morning over oceans. Such land/ ocean phase differences have been the topic of considerable research and debate. Many of the most widely studied diurnal variations, such as precipitation, cloud cover, and outgoing longwave radiation, are directly associated with the atmospheric hydrologic cycle. Given its obvious role in

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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.
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241

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Impact of Clouds on the Atmospheric Absorption of SW - Comparing Theory and Impact of Clouds on the Atmospheric Absorption of SW - Comparing Theory and Observation at SGP Rose, F.G. (a), Charlock, T.P. (b), and Rutan, D.A. (a), Analytical Services & Materials Inc. (a), NASA Langley Research Center (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting This group, and also Li and Trishchenko, have earlier determined the cloud forcing to the atmospheric absorption of SW by combining surface data at SGP with CERES at TOA. Detailed analysis of our results show a systematic trend in the difference of all-sky and clear-sky atmospheric absorption with cosSZA: All-sky absorbs significantly more than clear-sky as cosSZA increases. From radiative transfer theory, all-sky absorption of SW is expected to be greater (less) than clear sky absoption when clouds are low

242

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A Subgrid Representation of Precipitating Marine Boundary Layer Clouds A Subgrid Representation of Precipitating Marine Boundary Layer Clouds Leung, L.R., and Ghan, S.J., Pacific Northwest National Laboratory; Feingold, G., Cooperative Institute for Research in the Atmosphere, Colorado State University Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting A subgrid parameterization is being developed to account for subgrid variations of precipitating marine stratocumulus clouds in general circulation models (GCMs). The method assumes an idealized form for the probability density function (pdf) for the cloud variables and predicts/diagnoses the parameters describing the pdfs. A level 2.5 turbulence closure model is used to calculate turbulence fluxes. Cloud-water-related turbulence fluxes are estimated using a partial

243

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Relationships Among Tropical Cloud Characteristics and Components of the Relationships Among Tropical Cloud Characteristics and Components of the Surface Heat Budget Curry, J.A., and Webster, P.J., University of Colorado; Clayson, C.A., Purdue University Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting Satellite data obtained during the TOGA COARE Intensive Observation Period (IOP) has been used to create a high resolution dataset (50 km, 3 hrs) of cloud characteristics (phase, height, precipitation) and components of the surface energy budget (radiation, sensible and latent heat fluxes). The satellite dataset has been evaluated using in situ observations obtained during TOGA COARE. A cloud classification scheme based upon cloud top height, phase, and precipitation is used as a framework to interpret the effect of the different cloud types on the component surface fluxes and

244

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Radiation Parameterization for Three-Dimensional Inhomogeneous Cirrus Radiation Parameterization for Three-Dimensional Inhomogeneous Cirrus Clouds: Application to Climate Models Gu, Y. and Liou, K.N., University of California, Los Angeles Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A three-dimensional (3D) radiative transfer model has been developed to simulate the transfer of solar and thermal infrared radiation in inhomogeneous cirrus clouds. The model utilizes a diffusion approximation approach (four-term expansion in the intensity) for application to inhomogeneous media employing Cartesian coordinates. The extinction coefficient, single-scattering albedo, and asymmetry factor are functions of spatial position and wavelength and are parameterized in terms of the ice water content and mean effective ice crystal size. We employ the

245

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Cirrus Cloud Particle Mass and Terminal Velocity Derived from Airborne 2D-C Cirrus Cloud Particle Mass and Terminal Velocity Derived from Airborne 2D-C Probe and Counterflow Virtural Impactor Data for Selected Cases During the Spring 2000 Cloud IOP Benson-Troth, S.(a), Mace, G.G.(a), Twohy, C.(b), and Poellot, M.(c), University of Utah (a), Oregon State University (b), University of North Dakota (c) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting When cirrus cloud particles are sampled by an airborne 2D-C probe, the shadows of the particles on the diode array are preserved. Analysis of the raw 2D-C data provides a size distribution and number concentration of the cloud particles sampled. The airborne counterflow virtural impactor provides the ice water content of the sampled cloud particles. Using the size distribution and the ice water content, we derive the coefficient and

246

ARM - Publications: Science Team Meeting Documents  

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Influence of Age-Dependent Optical and Thermal Snow Properties on the Influence of Age-Dependent Optical and Thermal Snow Properties on the Modeled Surface Temperature and Albedo in the Arctic Curry, J.A., and Schramm, J.L., University of Colorado Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting A new multi-level snow model has been developed to simulate the time-varying snow thermal and optical characteristics in response to precipitation events and snow aging. The model is forced by observations from the Russian ice islands in the Arctic Ocean, and also using some preliminary data from SHEBA. A comparison of the modeled surface temperature and albedo with the commonly used 0-level snow model is made. The new model shows much better agreement with time-series observations of surface temperature and albedo. When the snow model is used over a sea ice

247

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Aircraft Measurements of Spectral and Broadband Shortwave Albedo from the Aircraft Measurements of Spectral and Broadband Shortwave Albedo from the NASA Langley OV-10 Smith, W.L., Jr.(a), Charlock, T.P.(a), Roback, V.E.(a), Rutledge, C.K.(b), and Zhang, T.P.(b), NASA Langley Research Center (a), Analytical Services and Materials, Inc. (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting In order to validate and improve surface radiative fluxes derived as part of the Clouds and the Earth's Radiant Energy System (CERES) program, The CERES Fixed-wing Airborne Radiometer (CFAR) was developed to make measurements of upwelling and downwelling shortwave (spectral and broadband) and longwave (broadband) radiative fluxes. The CFAR consists of an OV-10A Bronco twin-turboprop, originally developed for military applications but chosen by NASA for atmospheric radiation measurements

248

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Angular Distribution of Intensity in a Flux of Radiation Scattered by a Angular Distribution of Intensity in a Flux of Radiation Scattered by a Cloud Dvoryashin, S.V., Shukurov, K.A., Shukurov, A.K., and Golitsyn, G.S., A.M.Obukhov Institute of Atmospheric Physics, RAS Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A study of the angular distribution of intensity in a flux of solar radiation scattered by a cloud was carried out in conditions of translucent clouds (the disk of the Sun is visible). Using the digital video camera KODAK DC200, mounted on the sun tracker, the sky images with the angle of view 38 0) have been obtained in cloudy and cloudless conditions. During measurements the disk of the Sun was closed with a blend. Using the specially developed program the photometry of the received images was

249

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Whole-Sky Imager Data Retrieval Whole-Sky Imager Data Retrieval Tooman, T.P., Christensen, G.J., Sandia National Laboratories; Shields, J., and Karr, M., Marine Physical Laboratory, Scripps Institution of Oceanography, University of California San Diego; Moore, S., and Sowle, D., Mission Research Corporation Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Whole-Sky Imager (WSI) is an automated imager used for assessing and documenting cloud fields and cloud field dynamics. Four WSI instruments have been deployed on hard surfaces: one in the Southern Great Plains, two in the Tropical Western Pacific, and one in the North Slope of Alaska. Additionally another instrument has been deployed on an ice breaker in the Polar Ice Cap - Surface Heat Budget of the Arctic (SHEBA). These electronic

250

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A Comparison of Surface Sensible Heat Flux at Atqasuk and Barrow A Comparison of Surface Sensible Heat Flux at Atqasuk and Barrow Shaw, W.J. (a), Doran, J.C. (b), and Hubbe, J.M. (c), Pacific Northwest National Laboratory Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting As part of the effort to discover the feedbacks between low-level arctic stratus and surface fluxes, we have operated an acoustic anemometer near Barrow, Alaska and a dual wavelength scintillometer near Atqasuk, which is 100 km to the south, in order to measure the surface turbulence heat flux. The systems operated unattended during the spring melt period of 2000, and the data were logged via internet or telephone connections. The acoustic anemometer was mounted on a tower attached to a barge grounded on a low island on the northeast side of Elson Lagoon. The anemometer was 8.5 m

251

ARM - Publications: Science Team Meeting Documents  

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A Satellite Cloud, Radiation and Precipitation Data Set for Cloud Model A Satellite Cloud, Radiation and Precipitation Data Set for Cloud Model Evaluation Xu, K.-M.(a), Wielicki, B.A.(a), Wong, T.(a), and Randall, D.A.(b), NASA Langley Research Center (a), Colorado State University (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting To systematically evaluate cloud models including large-eddy simulation (LES), cloud-resolving models (CRMs), cloud parameterizations in general circulation models (GCMs), one needs a large set of cloud, radiation and precipitation data that are matched with simultaneous atmospheric state data. We have been using a technique to produce such a data set at the NASA Langley Research Center. Specifically, this technique classifies EOS (Earth Observing System) satellite data into distinct cloud systems or "cloud

252

ARM - Publications: Science Team Meeting Documents  

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NCDX: NetCdr Data eXtraction utility for Examination and Visualization of NCDX: NetCdr Data eXtraction utility for Examination and Visualization of Netcdf Data Flynn, C.J. and Ermold, B., Pacific Northwest National Laboratory Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting NCDX is a command-line utility designed for routine examination and extraction of data from netcdf files. Data can be displayed graphically (line-plot, scatter-plot, overlay, color-intensity, etc.) or extracted as ASCII data. In either case, results can be saved to disk or viewed directly on screen. Date and time can be displayed in a large variety of formats including calendar, julian, HHMMSS, fractional day, and others. It can accept multiple netcdf files as input producing merged results. NCDX can be used in either interactive or batch-processing mode making it suitable for

253

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Absolute Radiance Calibration Techniques for the Whole Sky Imager Absolute Radiance Calibration Techniques for the Whole Sky Imager Shields, J.E. (a), Johnson, R.W. (a), Tooman, T.P. (b), Karr, M.E. (a), Burden, A.R. (a), and Baker, J.G. (a), Scripps Institution of Oceanography (a), Sandia National Laboratories (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The Day/Night Whole Sky Imager is designed to provide absolute radiance distributions over the full upper hemisphere, as well as providing an assessment of cloud fraction and cloud spatial properties. In order to provide radiance distributions, the instrument must be calibrated using absolute radiometry techniques adapted for use with an imager. These techniques are particularly demanding due to the large dynamic range required to acquire data from full daylight to starlight. For example, a

254

ARM - Publications: Science Team Meeting Documents  

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Activation Control: An Alternate Framework for Explaining Variation of Deep Activation Control: An Alternate Framework for Explaining Variation of Deep Convection Barr-Kumarakulasinghe, S.A., Brookhaven National Laboratory Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting An alternate conceptual framework with the ability to explain large scale variation in convection, but still have the ability to explain shorter time scale (weekly) variation of convection is presented. In contrast, the current quasi-equilibrium and statistical equilibrium control framework, appears to be only successful in explaining monthly and large scale variations in convection and circulation patterns. Mapes has referred to an alternate concept as activation control, though not actually offering a solution or methodology. This abstract presents an activation control

255

ARM - Publications: Science Team Meeting Documents  

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Evaluation of the Plane-Parallel Model from MISR Measurements Evaluation of the Plane-Parallel Model from MISR Measurements Horvath, A.(a), Davies, R.(b), and Diner, D.J.(b), University of Arizona (a), Jet Propulsion Laboratory (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Due to its simplicity and computational speed, the 1-D plane-parallel model enjoys widespread popularity in the satellite remote sensing of cloud microphysical properties. Just how well this model describes real clouds is a question rather difficult to answer with traditional single-angle observations. With the advent of near-simultaneous multiangle measurements, it is possible to evaluate the validity of the plane-parallel approach. This study used data from the Multiangle Imaging SpectroRadiometer (MISR) on NASA's TERRA (EOS-AM) platform. Only liquid clouds over oceans were

256

ARM - Publications: Science Team Meeting Documents  

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Cloud Fraction Retrieval Utilizing Whole Sky Imagers Cloud Fraction Retrieval Utilizing Whole Sky Imagers Tooman, T.P., Sandia National Laboratories; Moore, S., and Sowle, D., Mission Research Corporation; Shields, J., Marine Physical Laboratory Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting Long-term statistics on cloud cover and cloud thickness are desirable for understanding how clouds affect climate. We are attempting to use images collected by the Whole Sky Imager (WSI) to extract this information. For nighttime retrieval, we intend to develop algorithms and software to detect star occultations due to clouds. For daytime retrievals, we intend to develop an appoach based on sky radiance variations. We have implemented software to detect star locations, to map image pixel space to celestial

257

ARM - Publications: Science Team Meeting Documents  

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Parameterization of Cloud-Radiation Interactions as Relevant to Climate Parameterization of Cloud-Radiation Interactions as Relevant to Climate Models: A New Dimension Stephens, G.L.(a), Wood, N.B.(a), Barker, H.W.(b), and Gabriel,P.(a), Colorado State University (a), Meteorological Service of Canada (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The parameterization of cloud-radiation interactions involve a number of levels of approximation. The focus of past programs like ICRCCM and I3RC have been directed largely towards assessing methods of solution while other efforts have gone into evaluating the parameterization of cloud optical properties. The parameterization of unresolved cloud variability, however, has received much less attention. A study that attempts to assess a number of the current empirical sub-grid parameterization methods has

258

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Stratus Microphysical Parameters Using Radar and Visible Stratus Microphysical Parameters Using Radar and Visible Optical Depth Austin, R.T. and Stephens, G.L., Colorado State University, Fort Collins Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A new algorithm for the retrieval of stratus cloud microphysical parameters was introduced last year and applied to measurements of maritime stratus clouds off the coast of California. The retrieval has been refined and applied to data from the Southern Great Plains CART site, as well as to the original California marine measurements. The poster will describe these refined results, discuss error analysis of the algorithm, show how the retrieval compares with analogous radar-only retrievals, and discuss other products and benefits of the algorithm's estimation theory formulation

259

ARM - Publications: Science Team Meeting Documents  

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Retrievals of Vertical Profiles of Cloud Ice Mass and Particle Retrievals of Vertical Profiles of Cloud Ice Mass and Particle Characteristic Size from MMCR Data Matrosov, S.Y.(a), Heymsfield, A.J.(b), Shupe, M.D.(c), and Korolev, A.V.(d), CIRES, University of Colorado and NOAA ETL (a), NCAR (b), STC (c), Canadian Atmospheric Service (d) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting A remote sensing method is proposed for the retrievals of vertical profiles of ice cloud microphysical parameters from ground-based measurements of radar reflectivity and Doppler velocity with a vertically pointed cloud radar. This method relates time-averaged Doppler velocities (which are used as a proxy for the reflectivity weighted particle fall velocities) to particle characteristic sizes such as median or mean. With estimated

260

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Spectral Characterization of the Scattering and Absorption of Solar Spectral Characterization of the Scattering and Absorption of Solar Radiation by Aerosols and Clouds: Results from Several Recent Field Studies Pilewskie, P.(a), Rabbette, M.(b), Bergstrom, R.(b), Pommier, J.(b), and Howard, S.(b), NASA Ames Research Center (a), Bay Area Environmental Research Institute (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Efforts to reduce the uncertainty in climate forcing due to the radiative effects of aerosols and clouds have led to the improvement of radiometric sensors used to measure the spectral distribution of solar radiation in the atmosphere. Because much of our current understanding of the solar radiation budget is derived from broadband (spectrally integrated) observations, newer spectrally resolved observations need to be examined in

Note: This page contains sample records for the topic "annual arm science" 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

ARM - Publications: Science Team Meeting Documents  

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Photoacoustic Instrument for Measurement of Aerosol or Gaseous Light Photoacoustic Instrument for Measurement of Aerosol or Gaseous Light Absorption Arnott, W.P., Moosmuller, H., and Rogers, C.F., Desert Research Institute Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting A photoacoustic instrument has been developed and evaluated for measurement of aerosol light absorption. This instrument produces a direct measure of absorption by use of a calibrated microphone and determination of laser power, in contrast to filter methods that require empirical calibration and are subject to strong effects of aerosol extinction. The instrument was evaluated during the winter of 1996-97 in Brighton, Colorado, during the North Front Range Air Quality Study (NFRAQS). Results of the instrument intercomparison with other methods during NFRAQS will be given along with

262

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The Clear-Sky Diffuse 'Problem' at SGP: RSS Data & Analysis The Clear-Sky Diffuse 'Problem' at SGP: RSS Data & Analysis Harrison, L., Kiedron, P., and Min, Q., State University of new York, Albany Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting We analyze the spectral RSS data from the fall of 1999, when there were an unusual series of clear-sky cloud-free days at SGP. The RSS makes measurements of the spectral diffuse/direct ratio which are independent of calibration. We also extract typical optical depth analyis data from Langley regressions, and we retrieve column NO2 from correlation spectroscopy. We show that column NO2 is often well above clean-climatological background at SGP, and that this interacts with simple forms of aerosol-optical depth retrievals (which do not account for this)

263

ARM - Publications: Science Team Meeting Documents  

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A New Approach for Obtaining Advection Profiles: Application to the SHEBA A New Approach for Obtaining Advection Profiles: Application to the SHEBA Column Morrison, H.(a) and Pinto, J.O.(b), University of Colorado (a), NCAR/University of Colorado (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Time-averaged vertically-integrated 3-D advections are inferred from heat and moisture budgets obtained from observations at SHEBA for April, May, June and July. Advection was a source of heat and moisture in the column budgets during the time period, balanced mostly by precipitation and radiative cooling. These inferred advections are used to evaluate and correct the 3D temperature and water vapor advection profiles obtained from operational forecasts of the ECMWF model. Advections from the ECMWF model are generally too warm and moist, particularly in July. These biases lead

264

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Evaluating Stochastic Radiative Transfer Evaluating Stochastic Radiative Transfer Lane, D.E. (a), Somerville, R.C.J. (b), and Iacobellis, S.F. (b), CIRES, University of Colorado, Boulder (a), Scripps Institution of Oceanography, University of California, San Diego (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Stochastic modeling is a promising technique for representing shortwave radiative transfer through scattered, low-level clouds. A distinct advantage of this approach is that a stochastic model can accurately calculate the radiative heating rates through a broken cloud layer without requiring an exact description of the cloud geometry. In this paper a single-column model is employed to quantify the influence of the stochastic approach on model thermodynamics for times when broken cloud fields were

265

ARM - Publications: Science Team Meeting Documents  

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Estimation of Temperature Effect of Fires Near Moscow in Summer-Fall 2002 Estimation of Temperature Effect of Fires Near Moscow in Summer-Fall 2002 Mokhov, I.I. and Gorchakova, I.A., Obukhov Institute of Atmosphere Physics RAS, Russia Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Local effect of cooling ΔT due to peatbog and forest fires near Moscow in summer-fall 2002 is estimated. These estimates are based on coordinated measurements at the Zvenigorod Scientific Station (55°42'N, 36°46'E) of our Institute. Continuous measurements of radiation balance components at the surface together with meteorological and aerological observations and determination of the aerosol optical depth τ were used to calculate the aerosol radiative forcing (ARF) at the surface ARF(0), at the top of the atmosphere ARF(∞), and for the whole atmosphere ARF (∞)- ARF(0).

266

ARM - Publications: Science Team Meeting Documents  

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Numerical Tests of the Cloud-Surface Interaction Based Broken-Cloud Field Numerical Tests of the Cloud-Surface Interaction Based Broken-Cloud Field Optical Depth Retrieval: Sensitivity to Surface Albedo, Droplet Phase Function, Aerosol, and Instrument Noise Beaulne, A.(a), Barker, H.W.(b), Blanchet, J.P.(a), Pavloski, C.F.(c), Clothiaux, E.E.(c), and Marshak, A.(d), Universite du Quebec a Montreal (a), Environment Canada (b), The Pennsylvania State University (c), NASA-GSFC (d) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The algorithm proposed by Barker and Marshak for inferring optical depth of broken clouds using surface radiometric data has been subject to several sensitivity tests. These include the impacts of uncertainties in specification of effective local surface albedo, droplet phase function,

267

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Seasonal Variability in Cloud Cover, Cloud Base Height, and Cloud Liquid Seasonal Variability in Cloud Cover, Cloud Base Height, and Cloud Liquid Water Content at the North Slope of Alaska and the Adjacent Arctic Ocean Takara, E.E. and Ellingson, R.G., University of Maryland Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting It is well known that complete radiative transfer calculations for broken cloud fields are extremely complex and time consuming. Furthermore, the solution for a particular broken cloud field is not particularly useful for evaluating cloud effects. For that reason, is common to parameterize the cloud effects by using an effective cloud fraction. In general circulation models, it is common to use theabsolute cloud amount as the effective cloud fractions. This can be an effective for cloud fields where the cloud

268

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Evidence for Aerosol Effects on AERI Clear-Sky Radiance at the SGP Evidence for Aerosol Effects on AERI Clear-Sky Radiance at the SGP Ma, Y., and Ellingson, R.G., University of Maryland Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Emitted Radiance Interferometer (AERI) Line-by-Line Radiative Transfer Model (LBLRTM) Quality Measurement Experiment (QME) 10-micron window residuals have been examined relative to the Multifilter Rotating Shadowband Radiometer (MFRSR) 0.87-micron optical depth for clear-sky periods during 1997-98. The analysis shows an increasing aerosol influence on the downwelling radiance with aerosol optical depth for columnar water totals below about 3 cm. Above 3 cm, the residuals become negatively correlated with both aerosol optical depth and precipitable water. This change in the characteristics suggests that the current LBLRTM

269

ARM - Publications: Science Team Meeting Documents  

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A New Water Vapor Continuum Model: MT_CKD_1.0 A New Water Vapor Continuum Model: MT_CKD_1.0 Mlawer, E.J.(a), Clough, S.A.(a), and Tobin, D.C.(b), Atmospheric and Environmental Research, Inc. (a) University of Wisconsin - Madison (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting For the first time since its inception, a new formulation for the CKD approach to the water vapor continuum has been generated. This new version is designated MT_CKD_1.0. The original CKD formulation, derived in 1980 based upon laboratory measurements due to Burch and collaborators, applied an empirically derived multiplicative factor (different for the self and foreign continua) to the line wing of the impact line shape. This resulted in a line shape that was super-Lorentzian in the near and intermediate line

270

ARM - Publications: Science Team Meeting Documents  

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Retrieval of Mean Cosine of Aerosol Phase Function from Extinction and Sky Retrieval of Mean Cosine of Aerosol Phase Function from Extinction and Sky Brightness Measurements Zhuravleva, T.B.(a), Sviridenkov, M.A.(b), and Anikin, P.P.(b), Institute of Atmospheric Optics SB RAS, Tomsk, Russia (a), A.M. Obukhov Institute of Atmospheric Physics RAS, Moscow, Russia (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Asymmetry of the aerosol phase function together with optical thickness drive the magnitude of the aerosol radiative forcing. Two approaches are usually used to obtain the mean cosine of the phase function retrieval of the single scattering phase function from sky brightness measurements or calculations for the given aerosol size distribution and refractive index. We studied the possibility to determine the mean cosine directly from

271

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A Comparison of High Spectral Resolution Infrared Cloud Boundary Algorithms A Comparison of High Spectral Resolution Infrared Cloud Boundary Algorithms using S-HIS and AERI Measurements Holz, R.E.(a), Antonelli, P.(a), Ackerman, S.(a), McGill, M.J.(a), Nagel, F.(a), Feltz, W.F.(a), and Turner, D.D.(b), Univeristy of Wisconsin, Madison (a), Pacific Northwest National Laboratory (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Cloud top pressure is an important parameter in determining the radiative impact of clouds on climate. In addition, atmospheric temperature and moister retrievals of cloudy scenes using high spectral resolution data require the cloud altitude be known. The S-HIS is scheduled to fly on the Proteus during the upcoming M-PACE experiment. In addition to the SHIS a lidar system and an imager will accompany the SHIS during MPACE. This paper

272

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Radiosonde Intercomparison During the Fall 2000 Water Vapor IOP Radiosonde Intercomparison During the Fall 2000 Water Vapor IOP Lesht, B.M. (a) and Richardson, S.J. (b), Argonne National Laboratory (a), University of Oklahoma (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting We conducted 160 dual-radiosonde soundings during the fall 2000 Water Vapor Intensive Operations Period (WVIOP). The soundings were done every three hours at the SGP/CART site central facility from 1430 on 18 September 2000 through 1130 on 8 October 2000. The dual soundings included Vaisala RH-80H radiosondes from four different calibration lots as well as Vaisala RS-90 radiosondes. The radisondes were distributed during the experiment so as to conduct pairwise comparisons between RS-80s, RS-90s and RS-80s/RS-90s. Prior to the WVIOP we tested the calibration of these types of radiosondes

273

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Application of a Non-local Turbulence Closure Scheme to a Single Column Application of a Non-local Turbulence Closure Scheme to a Single Column Model Ghan, S.J. (a) and Moeng, C.-H. (b), Pacific Northwest National Laboratory (a), National Center for Atmospheric Research (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A non-local countergradient transport term is added to a turbulence kinetic energy scheme embedded in a single column model (SCM). The countergradient term is expressed in terms of a planetary boundary layer (PBL) velocity scale, the vertical profile of diffusivity, the depth of the PBL, and the fluxes of heat and moisture at the surface and at the top of the PBL. The fluxes at the top of the PBL are expressed in terms of the cloud top radiative cooling rate, the jump in liquid potential temperature and total

274

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Atmospheric Longwave Irradiance Uncertainty Atmospheric Longwave Irradiance Uncertainty Philipona, R. (a), Dutton, E.G. (b), Wood, N. (b), Anderson, G. (b), Stoffel, T. (c), Reda, I. (c), Michalsky, J.J. (d), Wendling, P. (e), Stiffter, A. (e), Clough, S.A. (f), Mlawer, E.J. (f), Revercomb, H. (g), and Shippert, T. (h), World Radiation Center, Davos, Switzerland (a), NOAA, Climate Monitoring and Diagnosic Laboratory (b), National Renewable Energy Laboratory (c), State University of New York at Albany (d), DLR, Oberfaffenhofen, Germany (e), Atmospheric and Environmental Research Inc. (f), University of Wisconsin-Madison (g), Pacific Northwest National Laboratory (h) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The first International Pyrgeometer and Absolute Sky-scanning Radiometer

275

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Detection of Thin Cirrus Using MODIS 1.38 Micron Reflection Detection of Thin Cirrus Using MODIS 1.38 Micron Reflection Roskovensky, J.K. and Liou, K.N., University of California, Los Angeles Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The 1.38 µm channel on board MODIS may have significant advantage in detecting thin cirrus over existing methods due to its high sensitivity to upper tropospheric clouds and a nearly negligible sensitivity to low level reflectance. To investigate this potential, three different cloud schemes are employed. One based on the MODIS Cloud Mask Product (MOD35) which utilizes both visible and 1.38 µm reflectance thresholds. The second is a modified version of the cloud phase detection scheme presented in the paper by Ou et al (1996) that incorporates a series of visible, near and far

276

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Seasonal Variability in Cloud Cover, Cloud Base Height, and Cloud Liquid Seasonal Variability in Cloud Cover, Cloud Base Height, and Cloud Liquid Water Content at the North Slope of Alaska and the Adjacent Arctic Ocean Storvold, R. (a), Stamnes, K. (b), Marty, C. (a), and Zak, B.D. (c), University of Alaska Fairbanks (a), Stevens Institute of Technology (b), Sandia National Laboratories (c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting There is great seasonal variability in cloud cover, cloud base height, and cloud liquid water in the Arctic. This seasonal variability in cloud properties has been quantified based on a full year of data from the Atmospheric Radiation Measurement Program Sites in Barrow and Atqasuk during 1999-2000. We compare these results with similar results obtained in the Arctic Ocean during the one-year SHEBA experiment. We also compare the

277

ARM - Publications: Science Team Meeting Documents  

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Tropical Cloud Radiative Forcing and the Large-Scale Atmospheric Energy Tropical Cloud Radiative Forcing and the Large-Scale Atmospheric Energy Transport Tian, B. (a) and Ramanathan, V. (b), Scripps Institution of Oceanography, UCSD Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Moist static energy is exported within the atmosphere column, from equatorial latitudes to the subtropics by the Hadley circulation and from the western Pacific warm pool to the eastern Pacific cold tongue by the Walker circulation. It is the net energy fluxes into the atmosphere, i.e., the radiative and the turbulent latent and sensible heat fluxes from surface and the radiative flux at the top of the atmosphere, that maintain this energy transport and balance the resulting divergence of energy. We demonstrate here that the dominant term that provides the balance is the

278

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Comparison of Cloud-Radiative Properties from Regional Very-High-Resolution Comparison of Cloud-Radiative Properties from Regional Very-High-Resolution Modeling and Satellite Retrievals Wang, D.-H. (a,b) and Minnis, P.(b), Hampton University (a), NASA Langley Research Center (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Data from a regional very-high-resolution modeling/assimilation and the GOES satellite-derived cloud-radiative properties including cloud fraction, temperature, height, thickness, phase, optical depth, effective particle size and ice or liquid water path; and TOA fluxes and albedos, are used in this study. The preliminary results of the intercomparison show that the cloud fields from model and satellite-derived compare well. The frequencies are computed for the individual cloud system. Comparisons of frequency

279

ARM - Publications: Science Team Meeting Documents  

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Differences in Cloud Characteristics at Barrow and Atqasuk at the NSA/AAO Differences in Cloud Characteristics at Barrow and Atqasuk at the NSA/AAO CART Doran, J.C., Barnard, J.C., Zhong, S., and Jakob, C., Pacific Northwest National Laboratory Pacific Northwest National Laboratory, European Centre for Medium-Range Weather Forecasting Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Data obtained from multifilter rotating shadowband radiometers (MFRSRs) and microwave radiometers (MWRs) have been used to examine the differences in the cloud characteristics at Barrow and Atqasuk during the period June-September of 1999. Because the size of a grid cell in a GCM may be on the order of 100 km or more, it is important to determine to what extent meteorological and radiometric observations made at Barrow or Atqasuk

280

ARM - Publications: Science Team Meeting Documents  

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The Impact of a Revised Treatment of Cirrus Microphysics on the Radiation The Impact of a Revised Treatment of Cirrus Microphysics on the Radiation Budget of the Unified Model Edwards, J.M. (a), Mitchell, D.L. (b), Ivanova, D. (b), and Wilson, D.R. (a), Met Office, Hadley Centre for Climate Prediction and Research (a), Desert Research Institute (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The Unified Model is used for both NWP and climate simulations at the Met Office. A parametrization of ice crystals as planar polycrystals was recently introduced into the climate and mesoscale NWP versions of this model, resulting in improvements to the radiation budget and a reduction in the upper tropospheric cold bias. Based on field observations, the size distribution is taken as bimodal and is characterized by a mean maximum

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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.
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281

ARM - Publications: Science Team Meeting Documents  

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Uncertainties in the Line Intensities in the 1130 nm Band of Water Vapor Uncertainties in the Line Intensities in the 1130 nm Band of Water Vapor Giver, L.P. (a), Pilewskie, P. (a), Gore, W.J. (a), Chackerian, Jr., C. (b), Varanasi, P. (c), Freedman, R.S. (d), and Bergstrom, R. (e), NASA-Ames Research Center (a), SETI Institute (b), State University of New York at Stony Brook (c), Space Physics Research Institute (d), Bay Area Environmental Research Insitute (e) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Belmiloud et al (GRL 27, 3703-3706 (2000)) have recently asserted that the line intensities in the 1130 nm band of water vapor band listed in the HITRAN database are much too weak. Giver et al (JQSRT 66, 101-105(2000)) pointed unit-conversion errors out in the intensity data previously appearing in the HITRAN database and corrected the intensity data so that

282

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Evaluation of Remote Sensing of the Single Scattering Albedo of Aerosols Evaluation of Remote Sensing of the Single Scattering Albedo of Aerosols During the Aerosol IOP Cairns, B.(a), Gianelli, S.M.(a), Carlson, B.E.(b), and Lacis, A.A.(b), Columbia University (a), NASA GISS (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting It has long been known that diffuse sky radiance and irradiance measurements are sensitive to the single scattering albedo of aerosols. The main difficulties in exploiting this sensitivity to try and remotely estimate the single scattering albedo of aerosols are uncertainties in the albedo and bidirectional reflectance distribution function of the surface and uncertainties in the calibration of the instruments used to make the measurements. The surface albedo measurements that are currently being

283

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Evaluation of a Bulk Cloud Microphysics Model in Simulating Low-Level Evaluation of a Bulk Cloud Microphysics Model in Simulating Low-Level Arctic Mixed-Phase Clouds Using a New Single-Column Model Morison, H., Curry, J.A., and Mirocha, J., University of Colorado Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The MM5 NCAR/Penn State mixed-phase bulk microphysical parameterization is evaluated using a new single column model (ARCSCM) in the context of arctic low-level mixed-phase clouds. ARCSCM is developed from the Arctic Regional Climate System Model (ARCSyM). Three mixed-phase clouds over SHEBA in May 1998 are simulated using the MM5 parameterization. Liquid water path (LWP) is underpredicted by ~ 75% compared to observations for the two cases that have a significant ice content, while LWP is accurately predicted (within

284

ARM - Publications: Science Team Meeting Documents  

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Case Studies of Water Vapor Variability During the International H20 Case Studies of Water Vapor Variability During the International H20 Project 2002 Using GPS Braun, J., Rocken, C., and Kuo, Y.H., UCAR/COSMIC Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The International H20 Project 2002 (IHOP_2002) was a field experiment located in the United States Southern Great Plains whose primary objective was to improve warm season rainfall prediction through the collection of precise observations of the water cycle and their assimilation into numerical weather models. As part of a wide range of observing systems, more than 40 Global Positioning System (GPS) stations were operating in the experiment region during IHOP_2002. We present an analysis of the evolution of the water vapor field for significant storms that were captured by the

285

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

The Parameterization of Shallow Cumulus Convection The Parameterization of Shallow Cumulus Convection Zhu, P. and Albrecht, B.A., University of Miami Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting A successful representation of shallow cumulus convection in GCMs requires two parameterizations: one for calculating the subgrid fluxes of heat, moisture, and momentum; and the other for estimating the cloud cover and the associated cloud liquid water. Two common schemes used for these two parameterizations are the mass flux approach and the distribution approach such as SDM's (Sommeria, Deardorff, and Mellor) scheme, respectively. In this study, we verified the assumptions that lead to these schemes using LES data. The analyses indicate that the assumptions may not be appropriate for shallow cumulus convections, especially those over land when diurnal

286

ARM - Publications: Science Team Meeting Documents  

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Dust-Climate Interactions: A Conceptual Model Dust-Climate Interactions: A Conceptual Model Shell, K. M. and Somerville, R. C. J., Scripps Institution of Oceanography, University of California, San Diego Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Paleoclimatic evidence strongly suggests that airborne mineral dust can be a climatically important atmospheric aerosol, but little is known quantitatively about the mechanisms of dust-climate interactions. We have developed a conceptual global model with which to study processes and feedbacks within the dust-climate system. We solve numerically for equilibrium climate states defined by temperature as a function of latitude. Our zonally averaged model includes both an atmosphere and a surface that becomes ice-covered at sufficiently low temperatures. We

287

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Intraseasonal Variation Observed from Multi-Infrared Channel Intraseasonal Variation Observed from Multi-Infrared Channel Inoue, T., Meteorological Research Institute Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Intraseasonal variations (MJO) of convective cloud, sea surface temperature (SST) and water vapor information are studied using three infrared channels (6.7, 11, 12 um). Split window(11 and 12 um) can classify optically thin ice cloud and optically thick cloud. Further SST and water vapor information can be retrieved from the split window over the cloud free region. We can estimate upper level relative humidity from the 6.7 um data. Composite analysis of cloud type associated with the intraseasonal variation during May 1998 showed the horse shoe shape deep convective cloud area near the center of the MJO, cirrus type cloud area to the west of the

288

ARM - Publications: Science Team Meeting Documents  

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Solar Radiative Influences on Drop Growth Solar Radiative Influences on Drop Growth Harrington, J.Y, Hartman, C., and Verlinde, J., The Pennsylvania State University Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The offsetting effects of solar heating and infrared cooling on the vapor-depositional growth of cloud droplets is investigated. In this study, a marine stratocumulus cloud was simulated by using a large eddy simulation (LES) model and a detailed microphysical bin model. Including infrared cooling as well as solar heating had two effects. The first effect is related to the fact that vapor-depositional growth of drops is radius dependent - solar heating effects dominated at larger drop sizes (> 100 microns) and infrared cooling effects dominated at smaller drop sizes

289

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Inferring Optical Depth of Broken Clouds above Green Vegetation. Part Inferring Optical Depth of Broken Clouds above Green Vegetation. Part I:Methodology for Surface- and Aircraft-based Observations Barker, H.W. (a), Marshak, A. (b), Pavloski C.F. (c), and Clothiaux E.E.(c), Environment Canada (a), UMBC/JCET (b), The Pennsylvania State University (c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A method for inferring cloud optical depth is introduced and assessed using simulated radiometric measurements produced by a 3D Monte Carlo algorithm acting on fields of broken, single-layer, boundary layer clouds. These fields contain numerous small cumuli and broken stratiform clouds and represent demanding tests. The method, which resembles the Normalized Difference Cloud Index, utilizes the DISORT radiative transfer model and

290

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Water Vapor Profiling During WVIOP#3 and AFWEX2000 Using Ground-Based Water Vapor Profiling During WVIOP#3 and AFWEX2000 Using Ground-Based Differential Absorption Lidar Boesenberg, J. (a), Linne, H. (a), Jansen, F. (a), Ertel, K. (a), Lammert, A. (a), and Wilkerson, T. (b), Max-Planck-Institut fuer Meteorologie, Hamburg (a), Utah State Univerity (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The differential absorption lidar (DIAL) system of the MPI participated in both the WVIOP#3 and AFWEX2000 experiments. It was operated on 11 days during each experiment for periods up to 12 hours per day. The time slot for these measurements was 12 noon to 2am due to FAA restrictions. The measurements were focussed on the day-night-transition and the following hours during WVIOP#3 and on LASE overflights during AFWEX. The MPI DIAL

291

ARM - Publications: Science Team Meeting Documents  

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Particle Size Distributions Estimated During the 2001 Multi-Frequency Radar Particle Size Distributions Estimated During the 2001 Multi-Frequency Radar IOP Williams, C.R.(a) and Sekelsky, S.M.(b), University of Colorado at Boulder (a), University of Massachusetts at Amherst (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The 2001 Multi-Frequency Radar Intensive Operational Period (IOP) was designed to collect a long dataset of W-band (95 GHz), Ka-band (35 GHz), and S-band (2.8 GHz) vertical profiling observations to investigate insect scattering and precipitating particle scattering above the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) site. The 95 and 2.8 GHz vertically pointing radars were placed next to the permanently installed 35 GHz Millimeter Wave Cloud Radar (MMCR) at the SGP Central Facility from

292

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Parameterization of Hygroscopic Aerosols in a Climate GCM Parameterization of Hygroscopic Aerosols in a Climate GCM Lacis, A.A., Mishchenko, M.I., and Carlson, B.E., Goddard Institute for Space Studies Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Real and imaginary refractive indices are needed over the full range of solar and thermal wavelengths in order to compute the radiative forcing due to atmospheric aerosols. Laboratory measurements are available for dry ammonium sulfate [Toon and Pollack, 1976] over the spectral range 0.3 – 40 ?m, and for dry sea salt [Shettle and Fenn, 1979; Nilsson, 1979; both based on Volz, 1972 measurements] over 0.2 – 40 ?m. Partial spectrum measurements from 0.7 to 2.6 ?m of the imaginary refractive index of ammonium sulfate and ammonium nitrate are also available [Gosse et al.,

293

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiative Forcing of Arctic Boundary Layers During SHEBA Radiative Forcing of Arctic Boundary Layers During SHEBA Pinto, J.O., Mirocha, J., Reeder, R.A., and Curry, J.A., University of Colorado Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Field measurements obtained during the Surface Heat Budget of the Arctic (SHEBA) experiment are used to ascertain the importance of radiation in the evolution of the Arctic boundary layer. Radiation effects the boundary layer structure through the vertical flux divergence of longwave and shortwave fluxes as well as through radiative heating/cooling of the surface which determines the sensible heat flux. The mean and turbulence structure of the both clear and cloud boundary layers in winter, spring and summer are determined from aircraft data, radiosonde soundings, the ASFG

294

Annual Report 2011 Computer Science Department  

E-Print Network (OSTI)

Annual Report 2011 Computer Science Department of the Faculty for Mathematics, Computer Science, and Natural Sciences at RWTH Aachen University #12;Published by: Computer Science Department RWTH Aachen' ........................................................................... 5 Computer Science Summer Party ­ Sommerfest der Informatik.................................... 7

Kobbelt, Leif

295

Charter for the ARM Climate Research Facility Science Board  

Science Conference Proceedings (OSTI)

The objective of the ARM Science Board is to promote the Nations scientific enterprise by ensuring that the best quality science is conducted at the DOEs User Facility known as the ARM Climate Research Facility. The goal of the User Facility is to serve scientific researchers by providing unique data and tools to facilitate scientific applications for improving understanding and prediction of climate science.

Ferrell, W

2013-03-08T23:59:59.000Z

296

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Aerosol Direct Forcing at TOA and Surface for Clear and Cloudy Conditions Aerosol Direct Forcing at TOA and Surface for Clear and Cloudy Conditions Charlock, T.P.(a), Rose, F.G.(b), Rutan, D.A.(b), Fillmore, D.(c), and Collins, W.(c), NASA Langley Research Center (a), Analytical Services and Materials, Inc. (b), National Center for Atmospheric Research (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Direct aerosol forcing can be affected dramatically by cloudiness. For example, with a continental AOT of 0.25 and soot AOT of 0.05 at scale height 2km over the tropical ocean with cosSZA of 0.33, the computed forcing to SW reflection at TOA is 15 Wm-2. If we include a boundary layer cloud with a top at 1km and an optical depth 20, the same TOA forcing then reverses sign and becomes -22 Wm-2. A new CERES Terra Surface and

297

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

designed to facilitate intercomparison of ARM data with the satellite data and include thermodynamic profiles, millmeter radar data, microwave radiometer data, surface...

298

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Optical Remote Sensing Research at Montana State University Shaw, J.A., Repasky, K., and Carlsten, J.A., Montana State University Thirteenth Atmospheric Radiation Measurement (ARM)...

299

ARM - Selected Science Team Proposals - FY 1997  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation Measurement (ARM) Program" Dr. Joseph Michalsky, Jr., State University of New York: "Spectral and Broadband Rotating Shadowband Shortwave Radiometry and Analysis"...

300

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Satellite Determination of Large-Scale Ice Water Path Distribution During ARM IOPs Liu, G. and Zuiderweg, A., Florida State University Large-scale horizontal distribution and...

Note: This page contains sample records for the topic "annual arm science" 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.
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to obtain the most current and comprehensive results.


301

ARM - Publications: Science Team Meeting Documents: Investigation...  

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Investigation of high ice supersaturation in cirrus clouds using ARM data and an explicit cloud model Comstock, Jennifer Pacific Northwest National Laboratory Lin, Ruei-Fong NASA...

302

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

overlap in order to improve the general circulation models used to produce climate forecasts. The long term meteorological data gathered by the DOE ARM program offers a unique...

303

ARM - Selected Science Team Proposals - FY 1998  

NLE Websites -- All DOE Office Websites (Extended Search)

of the ARM Data Stream" Dr. Joseph Michalsky and Dr. Lee Harrison, State University of New York, Albany: "Spectral and Broadband Shortwave Radiometry and Analysis" Dr. David A....

304

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

focus of this study is to estimate the confidence intervals of the Atmospheric Radiation Measurement (ARM) Enhanced Shortwave Experiment (ARESE) solar radiation measurements on...

305

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

traceable to an international standard is the first step in establishing research quality solar irradiance measurement capabilities. All radiometers used in the ARM Program for...

306

ARM - Publications: Science Team Meeting Documents  

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Subgrid-Scale Vertical Transport of Moisture and Energy Over the ARM SGP: Analysis of Measurements and Parameterizations in Cumulus Convection Schemes Zhang, M.H., State University...

307

ARM - Publications: Science Team Meeting Documents: Spectral...  

NLE Websites -- All DOE Office Websites (Extended Search)

over the ARM SGP area from multi-year satellite observations Trishchenko, Alexander Canada Centre for Remote Sensing Luo, Yi Canada Centre for Remote Sensing Li, Zhanqing...

308

ARM - Publications: Science Team Meeting Documents: Autonomous...  

NLE Websites -- All DOE Office Websites (Extended Search)

Autonomous Retrieval of Cloud and Aerosol Properties from ARM Micropulse Lidar Flynn, Connor Pacific Northwest National Laboratory Christy, Jason Columbia University Beus, Sherman...

309

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

ARM Micropulse Lidar: Configuration Upgrades and New Data Products Flynn, C.J., Mendoza, A., and Christy, J., Pacific Northwest National Laboratory Fourteenth Atmospheric Radiation...

310

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

in Stratus Clouds Evidence of High Ice Supersaturation in Cirrus Clouds Using ARM Raman Lidar Measurements* Local Correlations and Multifractal Behavior in Marine Boundary Layer...

311

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Systems Laboratory is operating a network of GPS receivers located at each of their wind profiler sites. The University of Oklahoma, in cooperation with the ARM program,...

312

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Effects of Land-Surface Physics on the Cloud-Resolving Simulations During the ARM Summer 1997 IOP Wang, D.H. (a,b) and Xu, K.M.(b), Hampton University (a), NASA Langley Research...

313

ARM - 2006 Science Team Meeting Presentations  

NLE Websites -- All DOE Office Websites (Extended Search)

from the ARM Archive Raymond McCord (PDF, 2MB) Joint Meeting of Instantaneous Radiative Flux (IRF) and Clouds with Low Optical Water Depths CLOWD Working Groups: NSA Broadband...

314

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Retrieval of Ice Water Path, Ice Particle Size, and Shape Mitchell, D.L., Arnott, W.P., and Ivanova, D.C., Desert Research Institute Twelfth Atmospheric Radiation Measurement (ARM)...

315

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Using GFS Weather Model to Reduce Diurnal Differences Between GPS PW and ARM MWR PW Van Hove, T.(a), Liljegren, J.C.(b), Rocken, C.(a), and Braun, J.(a), University Corporation for...

316

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

since April 2002. This poster will present a view of the 20022003 Australian summer monsoon through the use of data collected by both the ARM and existing Bureau of Meteorology...

317

ARM - Publications: Science Team Meeting Documents: Scanning...  

NLE Websites -- All DOE Office Websites (Extended Search)

November 2002 rejoined the program to participate in the SGP leg of the ARM-UAV "Grand Tour". S-HIS spectral coverage is 580-3000 cm-1 with a resolution of 0.5 cm-1, and spatially...

318

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

University of Utah has been archiving (daily) column data from the NCEP Medium Range Forecast (MRF) model for various sites over the globe. Four of these sites coincide with ARM...

319

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

and ARM Enhanced Shortwave Experiment Aircraft Data J.K. Ayers, D.R. Doelling, L. Nguyen, W.L. Smith, Jr., and P. Minnis Cloud Optical Properties Obtained from the...

320

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

M.W. An Overview of ARM Satellite Cloud and Radiation Budget Datasets* Minnis, P., Nguyen, L., Smith Jr., W.L., Doelling, D.R., Heck, P.W., Khaiyer, M.M., Palikonda, R., Young,...

Note: This page contains sample records for the topic "annual arm science" 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.
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to obtain the most current and comprehensive results.


321

ARM - Publications: Science Team Meeting Documents: Variance...  

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Sciences, UCLA Neelin, David Department of Atmospheric and Oceanic Sciences, UCLA Thermodynamic variance similarity in shallow cumulus topped mixed layers is studied using...

322

2012 Annual Planning Summary for Science | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

within Science. More Documents & Publications 2011 Annual Planning Summary for Science (SC) 2012 Annual Planning Summary for Environmental Management 2012 Annual Planning Summary...

323

ARM - Collaborations  

NLE Websites -- All DOE Office Websites (Extended Search)

govScienceCollaborations govScienceCollaborations Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) ARM Science Team Meetings User Meetings Annual Meetings of the Atmospheric System Research (ASR) Science Team and Fall Working Groups Accomplishments Read about the 20 years of accomplishments (PDF, 696KB) from the ARM Program and user facility. Performance Metrics ASR Metrics 2009 2008 2007 2006 Collaborations The ARM Climate Research Facility collaborates extensively with other U.S. Department of Energy (DOE) programs and laboratories, agencies, universities, and private firms in gathering and sharing data. This collaborative approach allows ARM to leverage its investment in instruments, sites, data, and science and to gain the knowledge necessary

324

ARM - Events Article  

NLE Websites -- All DOE Office Websites (Extended Search)

April 12, 2011 [Events, Facility News] April 12, 2011 [Events, Facility News] ARM Participates in Second Annual Atmospheric System Research Science Team Meeting Bookmark and Share In front of her poster, Alice Cialella from Brookhaven National Laboratory speaks to ARM Aerial Facility Program Manager Rickey Petty. In front of her poster, Alice Cialella from Brookhaven National Laboratory speaks to ARM Aerial Facility Program Manager Rickey Petty. ARM Facility staff participated in the second annual Atmospheric System Research (ASR) Science Team Meeting, held March 27-April 1 in San Antonio, Texas. ASR and ARM collaborate through the use of ARM facilities for targeted field campaigns and data gathered at ARM sites for climate model improvement. The annual meeting provides an opportunity for science and

325

ARM - Events Article  

NLE Websites -- All DOE Office Websites (Extended Search)

March 29, 2012 [Events] March 29, 2012 [Events] ARM Attends Third Annual Atmospheric System Research Science Team Meeting Bookmark and Share The ARM Climate Research Facility provided information about the user facility, including a live data kiosk, public information materials, and banners showcasing the three fixed ARM sites. The ARM Climate Research Facility provided information about the user facility, including a live data kiosk, public information materials, and banners showcasing the three fixed ARM sites. The third annual Atmospheric System Research (ASR) Science Team Meeting, held March 12-16 in Arlington, Virginia, brought together members of ASR and the ARM Climate Research Facility. ASR and ARM collaborate through the use of ARM facilities for targeted field campaigns and data gathered at ARM

326

2013 Annual Planning Summary for the Office of Science | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Science 2013 Annual Planning Summary for the Office of Science 2013 Annual Planning Summary for the Office of Science The ongoing and projected Environmental Assessments and...

327

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

The CCPP-ARM Parameterization Test Bed (CAPT) The CCPP-ARM Parameterization Test Bed (CAPT) Potter, G.L.(a), Williamson, D.L.(b), Cederwall, R.T.(a), and Xie, S.(a), Lawrence Livermore National Laboratory (a), National Center for Atmospheric Research (b) In an attempt to improve GCMs that are used to project future climate change, we have borrowed a technique from the NWP community to identify and isolate model errors. We are using high-frequency (~6 hourly) NWP analyses both to realistically initialize (using the state fields: T, U, V, Q, and Ps) a climate GCM to evaluate the accuracy of its subsequent short-range weather forecasts and to diagnose the structure and growth of the identified forecast errors. The rationale is that most of the climate GCM's forecast errors can be attributed to parameterization deficiencies, once

328

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

The MERGED_SOUNDING VAP: A Status Report and Description The MERGED_SOUNDING VAP: A Status Report and Description Miller, M.A.(a), Troyan, D.T.(a), and Mace, G.G.(b), Brookhaven National Laboratory (a), University of Utah (b) The Value-added Product (VAP) known as MERGED_SOUNDING has been deemed a very desirous component of ARMs suite of VAPs. To have a thermodynamics profile of the atmosphere at one-minute temporal intervals and uniform height levels available for ARM data users eliminates much redundancy and inconsistency as investigators will now have standard atmospheric profiles at their disposal. The values which constitute the thermodynamics profile include: Temperature, Relative Humidity, Vapor Pressure, Barometric Pressure, Wind Speed and Direction, and Dewpoint. The data integrated to form the MERGED_SOUNDING data stream comes from radiosonde launches, model

329

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Observations and Stochastic Modeling of Shortwave Radiative Transfer at the Observations and Stochastic Modeling of Shortwave Radiative Transfer at the ARM CART Sites Secora, J.M. and Veron, D.E., Rutgers University Stochastic modeling has been shown to be a promising technique for representing shortwave radiative transfer through fractional cloud fields and may be a suitable approach for characterizing the impact of macroscale inhomogeneity of the cloud field on the radiation in an Atmospheric General Circulation Model (AGCM) environment. To ascertain the conditions under which the stochastic approach would be appropriate in an AGCM, several steps have been taken. Initially, we have analyzed both microphysical and geometrical cloud characteristics for one year at three Atmospheric Radiation Measurement (ARM) Program Cloud and Radiation Testbed (CART)

330

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

New Meteorological Applications Using AERI Thermodynamic Profiling New Meteorological Applications Using AERI Thermodynamic Profiling Feltz, W.F.(a), Howell, H.B.(a), Knuteson, R.O.(a), Mecikalski, J.(b), Bedka, K.(a), Tanamachi, R.L.(c), and Posselt, D.(d), University of Wisconsin SSEC/CIMSS (a), University of Alabama - Huntsville (b), University of Oklahoma (c), Colorado State University (d) The DOE ARM program has supported the development of a robust and operational thermodynamic retrieval algorithm using AERI high spectral resolution infrared radiances. These retrievals of temperature and water vapor have been used for a number of ARM research projects including planetary boundary layer (PBL) large eddy simulation, NWP validation, PBL height estimation, and for investigating the utility of driving SCM/CRM models continuously at the SGP site. New AERIplus retrieval meteorological

331

ARM - Publications: Science Team Meeting Documents  

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consist of over twelve sites. The science objective is ground truth for global satellite retrieval and accurate vertical distribution information in combination with surface...

332

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Modeling Aerosols and Clouds with the Global Environmental Multiscale Air Quality (GEM-AQ) Model Iziomon, M.G. and Lohmann, U., Department of Physics and Atmospheric Science,...

333

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

USA (a), Centre for Earth Observation Science, Geography Department, University of Manitoba, Winnipeg, Manitoba, Canada (b), Institute of Atmospheric Physics - Consiglio...

334

DOE/SC-ARM-12-023 ARM Climate Research Facility AnnuAl RepoRt - 2012  

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2-023 2-023 ARM Climate Research Facility AnnuAl RepoRt - 2012 New Climate Measurement Sites h ?QOPQK?* ? * - " ?q " *"- ?l *?G qlH?b " * ?q ?e " "* ? ? - " ?*"-? "?- *"- ? "* Y? ? "? ql?l- " ?e " "* ? - ? ? * ? - *? *?n " *- K? K? ? ? "? ? "* ?- ?f "- ?h ? " ?* ? - M?? ? "? "* ? ? ?*-? ?- *"- ? ?* ? ?- ?QOPRK? ?* ?"" ? -" ? ql ? " *" ? "* ?- ? *? " * ?- *"- ? " "*" ? - ?* ?"- M??o - - ?" * * *"- ? - ?* ?*"-? "* ?" Y

335

ARM - Publications: Science Team Meeting Documents: Abstracts sorted by  

NLE Websites -- All DOE Office Websites (Extended Search)

Meeting Meeting 2005 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Fifteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2005, March 2005 Daytona Beach, Florida For proper viewing, extended abstracts should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. * Poster abstract only; an extended abstract was not provided by the author(s). View session papers by Author or Title. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Abdou, W. Determination of Aerosol and Surface Reflectance Characteristics at the ARM CART Site Using MISR Observations* Ackerman, A. Factors Controlling the Properties of Multi-Phase Arctic

336

ARM - Publications: Science Team Meeting Documents  

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The entire year 2000 at SGP is planned to be processed by the time of the time of the Science Team Meeting, and results from these runs will be presented. This version should...

337

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Global Lidar Observations of Cloud and Aerosol Campbell, J.R. (a), Welton, E.J. (b), Spinhrine, J.D. (c), and Flynn, C.J. (d), Science Systems Applications, Inc. (a), University of...

338

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

New Concepts for Improved Performance of Dynamical and Microphysical New Concepts for Improved Performance of Dynamical and Microphysical Parameterization of Clouds Sud, Y.C.(a) and Walker, G.K.(b), NASA/Laboratory for Atmospheres Goddard Space Flight Center Three new concepts were launched for: i) simulating more shallow convection, ii) capturing mid-level convection and iii) better simulating the boundary-layer convection forced boundary-layer clouds. Each process was prameterized and evaluated in the ARM-CART SCM environment. The individual and combined influence of these on the simulated boundary-layer, shallow cumulus, mid-level cloudiness were examined. In addition, a physically based vertical adjustment of the advective air-mass transport was parameterized to better capture the isentropic character of horizontal advection. This modification eliminated the near surface temperature biases

339

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

The Association of the Cirrus Properties Over the Western Tropical Pacific The Association of the Cirrus Properties Over the Western Tropical Pacific with Tropical Deep Convection Deng, M.(a), Mace, G.G.(a), and Soden, B.J.(b), Univesity of Utah (a), Geophysical Fluid Dynamics Laboratory (b) The microphysical and radiative properties of upper tropospheric clouds in the tropics are known to have a substantial influence on climate. Observations from long term cloud radar measurements in the tropics show that upper tropospheric clouds are observed above 10 km as much as 40% of the time depending on location. By combining satellite observations with observations from the tropical ARM site on Nauru and Manus Islands we examine the macro and microphysical properties of these clouds in terms of their association with deep convection. The fundamental questions we will

340

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

The March 2000 Cloud Intensive Observing Period; The Evolution of the The March 2000 Cloud Intensive Observing Period; The Evolution of the Synoptic-Scale Atmosphere and the Associated Cloud Radiative Forcing Mace, G.G.(a), Sonntag, K.L.(b), Kato, S.(c), Poellot, M.(d), Twohy, C.(e), Troth, S.(a), Zhang, Q.(a), and Minnis, P.(c), University of Utah (a), Unviersity of Oklahoma (b), NASA Langley Research Center (c), University of North Dakota (d), Oregon State University (e) During the first 3 weeks of March 2000, an intensive observing period (IOP) was held near the central facility of the Southern Great Plains ARM site. In conjunction with the ARESE II campaign, the objective of this IOP was to observe the 3-dimensional structure of the cloud field using multiple scanning and vertically pointing millimeter radars. In anticipation of

Note: This page contains sample records for the topic "annual arm science" 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

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Variability of Continental Liquid-Water Cloud and Its Parameterization Variability of Continental Liquid-Water Cloud and Its Parameterization Using ARM Data Kim, B.-G.(a), Klein, S.A.(b), and Norris, J.R.(c), Princeton University (a), GFDL (b), Scripps Institute of Oceanography (c) Cloud radiative properties are important in the determination of cloud-climate interactions. Additionally, the boundary layer cloud inhomogeneity has a primary influence in reducing the albedo relative to that computed using plane-parallel approximation. Variability in cloud properties at scales smaller than those resolved by large-scale motions may cause significant biases and therefore must parameterized. An attractive solution is to introduce the cloud statistical scheme that uses a probability distribution function (PDF) to represent its subgrid-scale

342

ARM - Publications: Science Team Meeting Documents  

NLE Websites -- All DOE Office Websites (Extended Search)

Objective Criterion to Distinguish Seasons in Arctic Climate Objective Criterion to Distinguish Seasons in Arctic Climate Ivanova, K., Harrington, J.Y., Verlinde, J., Clothiaux, E.E., and Bahrmann, C.P., Pennsylvania State University Seasons are an important, though not always quantified, part of many climatologies. In particular, the breakdown of the annual cycle into seasons is important for cloud climatologies. Though one is always free to choose any averaging time-period one wants, it is usually best to choose time-periods during which the atmospheric forcing produces, perhaps, similar types of weather, or similar statistics. In Arctic research, breaking the year into seasons is also done to examine clouds synoptic-scale forcing of clouds, frontal frequencies, and so on. However, with few exceptions, the arctic seasons are defined commensurately with the

343

DOE/SC-ARM-11-024 ARM Climate Research Facility ANNUAL REPORT...  

NLE Websites -- All DOE Office Websites (Extended Search)

2011 Recovery Act HIGHLIGHTS October 2010 * Doppler lidars tested at the Atmospheric Radiation Measurement (ARM) Climate Research Facility's Southern Great Plains (SGP) site. *...

344

Science Goals for the ARM Recovery Act Radars  

SciTech Connect

Science Goals for the ARM Recovery Act Radars. In October 2008, an ARM workshop brought together approximately 30 climate research scientists to discuss the Atmospheric Radiation Measurement (ARM) Climate Research Facility's role in solving outstanding climate science issues. Through this discussion it was noted that one of ARM's primary contributions is to provide detailed information about cloud profiles and their impact on radiative fluxes. This work supports cloud parameterization development and improved understanding of cloud processes necessary for that development. A critical part of this work is measuring microphysical properties (cloud ice and liquid water content, cloud particle sizes, shapes, and distribution). ARM measurements and research have long included an emphasis on obtaining the best possible microphysical parameters with the available instrumentation. At the time of the workshop, this research was reaching the point where additional reduction in uncertainties in these critical parameters required new instrumentation for applications such as specifying radiative heating profiles, measuring vertical velocities, and studying the convective triggering and evolution of three-dimensional (3D) cloud fields. ARM was already operating a subset of the necessary instrumentation to make some progress on these problems; each of the ARM sites included (and still includes) a cloud radar (operating at 35 or 94 GHz), a cloud lidar, and balloon-borne temperature and humidity sensors. However, these measurements were inadequate for determining detailed microphysical properties in most cases. Additional instrumentation needed to improve retrievals of microphysical processes includes radars at two additional frequencies for a total of three at a single site (35 GHz, 94 GHz, and a precipitation radar) and a Doppler lidar. Evolving to a multi-frequency scanning radar is a medium-term goal to bridge our understanding of two-dimensional (2D) retrievals to the 3D cloud field. These additional microphysical measurements would allow detailed cloud properties to be derived even in the presence of light precipitation. It is important to couple these detailed measurements of cloud microphysics to vertical motion on the cloud scale to couple microphysics with meteorological processes. Vertically pointing Doppler radars provide the vertical motion of cloud particles but, to separate particle motion from air motion, a wind profiler is required. The American Recovery and Reinvestment Act provided the means to address these needs and implement a multi-frequency suite of radars, including scanning radars, at each of the ARM sites. In addition, Doppler lidars have been deployed at several sites. With these new measurement capabilities, ARM has the measurement capabilities to tackle the problems of improving microphysical profile descriptions and evaluating the relationship between our current narrow-field-of view, zenith perspective on clouds to a description of the full 3D cloud field and its temporal evolution.

JH Mather

2012-05-29T23:59:59.000Z

345

American Indian Science and Engineering Society Annual and National...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

American Indian Science and Engineering Society Annual and National Conference American Indian Science and Engineering Society Annual and National Conference November 7, 2011 -...

346

DOE/SC-ARM-10-032 ARM Climate Research Facility AnnuAl RepoRt - 2010  

NLE Websites -- All DOE Office Websites (Extended Search)

10-032 10-032 ARM Climate Research Facility AnnuAl RepoRt - 2010 Recovery Act HigHligHts September 2009 * One hundred percent of allocated funding from the American Recovery and Reinvestment Act of 2009 released to the Atmospheric Radiation Measurement (ARM) Climate Research Facility. October 2009 * Preliminary design reviews successfully completed for new solar spectrometer and Data Management Facility (DMF) upgrades. December 2009 * Preliminary design reviews successfully completed for 18 new radars and upgrades to existing radars. January 2010 * Design reviews completed for DMF, radars, and shipborne radar wind profiler. * Installation and integration of new equipment in process for the ARM Data Archive and aircraft infrastructure, data systems, and

347

ARM - Facility News Article  

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March 31, 2006 [Facility News] March 31, 2006 [Facility News] New Chief Scientist Leads Annual ARM Science Team Meeting Bookmark and Share Dr. Warren Wiscombe begins his presentation by introducing the members of his "Chief Scientist team"-a new approach for leading the ARM Science Team. Dr. Warren Wiscombe begins his presentation by introducing the members of his "Chief Scientist team"-a new approach for leading the ARM Science Team. With a new Chief Scientist at the helm, just over 300 ARM scientists and ARM infrastructure staff took part in the 16th ARM Science Team meeting held in Albuquerque, New Mexico, on March 27-31, 2006. After an initial day of focused meetings among the ARM Working Groups, Dr. David Thomassen, Acting Associate Director of DOE's Office of Biological and Environmental

348

Third Annual Science Alliance Takes Place in Ohio | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Third Annual Science Alliance Takes Place in Ohio Third Annual Science Alliance Takes Place in Ohio October 9, 2012 - 12:14pm Addthis Science Alliance 1 of 5 Science Alliance...

349

Materials Sciences Division 1990 annual report  

Science Conference Proceedings (OSTI)

This report is the Materials Sciences Division`s annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

Not Available

1990-12-31T23:59:59.000Z

350

Materials Sciences Division 1990 annual report  

Science Conference Proceedings (OSTI)

This report is the Materials Sciences Division's annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

Not Available

1990-01-01T23:59:59.000Z

351

Science Plan for the Atmospheric Radiation Measurement Program (ARM)  

SciTech Connect

The purpose of this Atmospheric Radiation Measurement (ARM) Science Plan is to articulate the scientific issues driving the ARM Program, and to relate them to DOE`s programmatic objectives for ARM, based on the experience and scientific progress gained over the past five years. ARM programmatic objectives are to: (1) Relate observed radiative fluxes and radiances in the atmosphere, spectrally resolved and as a function of position and time, to the temperature and composition of the atmosphere, specifically including water vapor and clouds, and to surface properties, and sample sufficient variety of situations so as to span a wide range of climatologically relevant possibilities; (2) develop and test parameterizations that can be used to accurately predict the radiative properties and to model the radiative interactions involving water vapor and clouds within the atmosphere, with the objective of incorporating these parameterizations into general circulation models. The primary observational methods remote sending and other observations at the surface, particularly remote sensing of clouds, water vapor and aerosols.

NONE

1996-02-01T23:59:59.000Z

352

Environmental Molecular Sciences Laboratory 2007 Annual Report  

DOE Green Energy (OSTI)

This annual report provides details on the research conducted at the Environmental Molecular Sciences Laboratory in Fiscal Year 2007 and path forward for capability upgrades in Fiscal Year 2008.

Showalter, Mary Ann; Foster, Nancy S.

2008-03-19T23:59:59.000Z

353

Environmental Molecular Sciences Laboratory 2007 Annual Report  

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1-1-40 Environmental Molecular Sciences Laboratory 2007 Annual Report Section 1-1-41 Peter T. Smith, Manager, Business Support Services (509) 371-6018, peter.smith@pnl.gov...

354

Atmospheric Radiation Measurement Program Science Plan Current Status and Future Directions of the ARM Science Program  

SciTech Connect

The Atmospheric Radiation Measurement (ARM) Program has matured into one of the key programs in the U.S. Climate Change Science Program. The ARM Program has achieved considerable scientific success in a broad range of activities, including site and instrument development, atmospheric radiative transfer, aerosol science, determination of cloud properties, cloud modeling, and cloud parameterization testing and development. The focus of ARM science has naturally shifted during the last few years to an increasing emphasis on modeling and parameterization studies to take advantage of the long time series of data now available. During the next 5 years, the principal focus of the ARM science program will be to: Maintain the data record at the fixed ARM sites for at least the next five years. Improve significantly our understanding of and ability to parameterize the 3-D cloud-radiation problem at scales from the local atmospheric column to the global climate model (GCM) grid square. Continue developing techniques to retrieve the properties of all clouds, with a special focus on ice clouds and mixed-phase clouds. Develop a focused research effort on the indirect aerosol problem that spans observations, physical models, and climate model parameterizations. Implement and evaluate an operational methodology to calculate broad-band heating rates in the atmospheric columns at the ARM sites. Develop and implement methodologies to use ARM data more effectively to test atmospheric models, both at the cloud-resolving model scale and the GCM scale. Use these methodologies to diagnose cloud parameterization performance and then refine these parameterizations to improve the accuracy of climate model simulations. In addition, the ARM Program is actively developing a new ARM Mobile Facility (AMF) that will be available for short deployments (several months to a year or more) in climatically important regions. The AMF will have much of the same instrumentation as the remote facilities at ARMs Tropical Western Pacific and the North Slope of Alaska sites. Over time, this new facility will extend ARM science to a much broader range of conditions for model testing.

TP Ackerman; AD Del Genio; RG Ellingson; RA Ferrare; SA Klein; GM McFarquhar; PJ Lamb; CN Long; J Verlinde

2004-10-30T23:59:59.000Z

355

ARM - Facility News Article  

NLE Websites -- All DOE Office Websites (Extended Search)

4, 2013 [Facility News] 4, 2013 [Facility News] Work Cut Out for ARM Science Board Bookmark and Share With a new fixed site on the horizon in the Azores, a third ARM Mobile Facility gearing up for action in the Arctic, and more aircraft probes and sensors than scientists can shake a stick at, the ARM Facility continues to expand its considerable suite of assets for conducting climate research. Along with this impressive inventory comes the responsibility to ensure the Facility is supporting the highest-value science possible. Enter the ARM Science Board. This eleven-member group annually reviews complex proposals for use of the ARM mobile and aerial facilities. To maintain excellence and integrity in the review process, each member serves a renewable term of two years, with membership updated annually.

356

Chief Scientist Report ARM Science Team Meeting 2008  

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the best poster you see. Lobbying for your poster is discouraged. Mar 2009 ARM Plenary 6 A brief sampler of ARM accomplishments A brief sampler of ARM accomplishments Mar 2009...

357

Earth Sciences Division annual report 1989  

SciTech Connect

This Annual Report presents summaries of selected representative research activities from Lawrence Berkeley Laboratory grouped according to the principal disciplines of the Earth Sciences Division: Reservoir Engineering and Hydrology, Geology and Geochemistry, and Geophysics and Geomechanics. We are proud to be able to bring you this report, which we hope will convey not only a description of the Division's scientific activities but also a sense of the enthusiasm and excitement present today in the Earth Sciences.

1990-06-01T23:59:59.000Z

358

ARM - Publications: Science Team Meeting Documents: External Data Stream  

NLE Websites -- All DOE Office Websites (Extended Search)

External Data Stream Review External Data Stream Review Wagener, Richard Brookhaven National Laboratory Ma, Lynn DOE/Brookhaven National Laboratory Gregory, Laurie Brookhaven National Laboratory Tichler, Joyce DOE/Brookhaven National Laboratory Horwedel, Betsy Oak Ridge National Laboratory Cialella, Alice Brookhaven National Laboratory In terms of data volume, about half the data in the ACRF archive were generated outside of the ARM program and collected by the eXternal Data Center (XDC) from external sources, processed to standard formats, documented, and forwarded to the archive. This constitutes a unique resource drawing many users to the archive, however it involves a significant effort and we must assure that the effort is spent where it provides the most benefit to the ACRF science mission. Here, we present a

359

ARM - Events Article  

NLE Websites -- All DOE Office Websites (Extended Search)

, 2007 [Events] , 2007 [Events] Climate Scientists Cool Their Heels at Science Team Meeting in Monterey Bookmark and Share Nearly 300 participants from countries as far away as Japan, Australia, and Finland attended the 2007 ARM Science Team Meeting. Nearly 300 participants from countries as far away as Japan, Australia, and Finland attended the 2007 ARM Science Team Meeting. A spring mix of sunny skies and stormy weather provided an appropriate setting for the Seventeenth Atmospheric Radiation Measurement (ARM) Program Science Team Meeting, held March 26 through March 30 in Monterey, California. Held annually since 1990, this meeting brings together ARM scientists, ARM infrastructure staff, and user facility researchers to review program progress and plan future activities.

360

Earth Sciences Division. Annual report 1979  

DOE Green Energy (OSTI)

This annual report contains articles describing the research programs conducted during the year. Major areas of interest include geothermal exploration technology, geothermal energy conversion technology, reservoir engineering, geothermal environmental research, basic geosciences studies, applied geosciences studies, nuclear waste isolation, and marine sciences. (ACR)

Not Available

1980-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "annual arm science" 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

Geothermal: Sponsored by OSTI -- Earth Sciences Division annual...  

Office of Scientific and Technical Information (OSTI)

Earth Sciences Division annual report, 1976. Research programs in Earth sciences Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On Home...

362

Chemical sciences, annual report 1993  

SciTech Connect

The Chemical Sciences Division (CSD) is one of eleven research Divisions of the Lawrence Berkeley Laboratory, a DOE National Laboratory. In FY 1993, the Division made considerable progress on developing two end-stations and a beamline to advance combustion dynamics at the Advanced Light Source (ALS). In support of DOE`s national role in combustion research and chemical science, the beamline effort will enable researchers from around the world to make fundamental advances in understanding the structure and reactivity of critical reaction intermediates and transients, and in understanding the dynamics of elementary chemical reactions. The Division has continued to place a strong emphasis on full compliance with environmental health and safety guidelines and regulations and has made progress in technology transfer to industry. Finally, the Division has begun a new program in advanced battery research and development that should help strengthen industrial competitiveness both at home and abroad.

1994-10-01T23:59:59.000Z

363

Earth Sciences annual report, 1987  

Science Conference Proceedings (OSTI)

The Earth Sciences Department at Lawrence Livermore National Laboratory conducts work in support of the Laboratory's energy, defense, and research programs. The Department is organized into ten groups. Five of these -- Nuclear Waste Management, Fossil Energy, Containment, Verification, and Research -- represent major programmatic activities within the Department. Five others -- Experimental Geophysics, Geomechanics, Geology/Geological Engineering, Geochemistry, and Seismology/Applied Geophysics -- are major disciplinary areas that support these and other laboratory programs. This report summarizes work carried out in 1987 by each group and contains a bibliography of their 1987 publications.

Younker, L.W.; Donohue, M.L.; Peterson, S.J. (eds.)

1988-12-01T23:59:59.000Z

364

ARM -  

NLE Websites -- All DOE Office Websites (Extended Search)

Center Blog Center Blog Media Contact Lynne Roeder lynne-dot-roeder-at-pnnl-dot-gov @armnewsteam Field Notes Blog Topics Field Notes89 AGU 3 AMIE 10 ARM Aerial Facility 2 ARM Mobile Facility 1 6 ARM Mobile Facility 2 47 BAECC 1 BBOP 4 MAGIC 12 MC3E 17 SGP 2 STORMVEX 29 TCAP 3 Search News Search Blog News Center All Categories What's this? Social Media Guidance News Center All Categories Features and Releases Facility News Field Notes Blog feed Events feed Employment Research Highlights Data Announcements Education News Archive What's this? Social Media Guidance AMF2 Arrives in Finland Jan 02, 2014 [ ARM Mobile Facility 2, BAECC, Blog, Field Notes ] After nine months at sea aboard the Horizon Spirit, the AMF2 reached land for an extended stay at the Station for Measuring Forest Ecosystem-Atmosphere Relations (SMEAR II) in Hyytiala, Finland. This nine-month, land-based deployment is in support of the Biogenic Aerosols-Effects on Clouds and Climate (BAECC) project. The deployment begins February 1, 2014, and [...]

365

ARM Climate Research Facility | U.S. DOE Office of Science (SC)  

NLE Websites -- All DOE Office Websites (Extended Search)

Research » Climate and Research » Climate and Environmental Sciences Division (CESD) » ARM Climate Research Facility Biological and Environmental Research (BER) BER Home About Research Research Abstracts Searchable Archive of BER Highlights External link Biological Systems Science Division (BSSD) Climate and Environmental Sciences Division (CESD) ARM Climate Research Facility Atmospheric System Research (ASR) Program Data Management Earth System Modeling (ESM) Program William R. Wiley Environmental Molecular Sciences Laboratory (EMSL) Integrated Assessment of Global Climate Change Regional & Global Climate Modeling (RGCM) Program Subsurface Biogeochemical Research Terrestrial Carbon Sequestration External link Terrestrial Ecosystem Science Facilities Science Highlights Benefits of BER

366

ARM - Facility News Article  

NLE Websites -- All DOE Office Websites (Extended Search)

9, 2013 [Facility News] 9, 2013 [Facility News] ARM Facility Shares Return on Science Investments Bookmark and Share The Bolger Center-a former U.S. Postal Service training center-hosted the fourth annual ASR Science Team Meeting in March. The Bolger Center-a former U.S. Postal Service training center-hosted the fourth annual ASR Science Team Meeting in March. To quote Ben Franklin, "If a man empties his purse into his head, no man can take it away from him. An investment in knowledge always pays the best interest." ARM Climate Research Facility staff who attended the fourth annual Atmospheric System Research (ASR) Science Team Meeting in April received a healthy dose of interest in March! With over 350 attendees presenting nearly 250 posters, the wealth of atmospheric climate science knowledge

367

ARM - Procedure for Submitting Science and Research Products to the Data  

NLE Websites -- All DOE Office Websites (Extended Search)

DocumentationProcedure for Submitting Science and Research DocumentationProcedure for Submitting Science and Research Products to the Data Archive Policies, Plans, Descriptions Data Documentation Home Data Sharing and Distribution Policy Data Management and Documentation Plan Data Product Registration and Submission Reading netCDF and HDF Data Files Time in ARM netCDF Data Files Data Archive Documentation ARM Archive's Catalog of Data Streams (Updated monthly) Access to Historical ARM Data More on Understanding and Finding ARM Data Data Quality Problem Reporting Procedure for Submitting Science and Research Products to the Data Archive The Principal Investigator (PI) establishes contact with an ARM Translator to describe the data product. The Translator collects enough information to describe the PI Product within the Translator group; thereby resulting in assignment of the

368

ARM - Publications: Science Team Meeting Documents: Update on...  

NLE Websites -- All DOE Office Websites (Extended Search)

California, San Diego The DOE CAPT project involves comparison of short-range weather forecasts from climate models to ARM data to assess errors in existing and prospective...

369

Proceedings of the third Atmospheric Radiation Measurement (ARM) science team meeting  

SciTech Connect

This document contains the summaries of papers presented at the 1993 Atmospheric Radiation Measurement (ARM) Science Team meeting held in Morman, Oklahoma. To put these papers in context, it is useful to consider the history and status of the ARM Program at the time of the meeting. Individual papers have been cataloged separately.

Not Available

1994-03-01T23:59:59.000Z

370

ARM - Publications: Science Team Meeting Documents: Comparison of ECMWF  

NLE Websites -- All DOE Office Websites (Extended Search)

Comparison of ECMWF Model and ARSCL Cloudiness at the ARM SGP site Comparison of ECMWF Model and ARSCL Cloudiness at the ARM SGP site Kollias, Pavlos RSMAS/University of Miami Albrecht, Bruce University of Miami The Department of Energy (DOE) Atmospheric Radiation Measurements (ARM) Program operates a comprehensive suite of active remote sensors at Southern Great Plains (SGP) in Oklahoma since 1996 to detect all hydrometeors in the atmospheric column above. Due to its location, the ARM SGP site cloud and precipitation climatology it is believed to be representative of mid-latitudes. Long-term (6.5 years) observations from this ARM site are used to provide a cloud and precipitation climatology. A cloud classification scheme based on cloud base height, fractional coverage, cloud thickness, cloud reflectivity and precipitation detection at the

371

ARM - Publications: Science Team Meeting Documents: W-Band ARM Cloud Radar  

NLE Websites -- All DOE Office Websites (Extended Search)

W-Band ARM Cloud Radar System W-Band ARM Cloud Radar System Mead, James ProSensing Inc. Widener, Kevin Pacific Northwest National Laboratory The W-Band ARM Cloud Radar (WACR) is a dual polarization 95 GHz radar that will be deployed at the SGP CART site in the spring of 2005. The WACR system will be installed in the existing MMCR shelter, and will provide continuous zenith pointing measurements of clouds to compliment measurements provided by MMCR. Built by ProSensing Inc. of Amherst, MA, the WACR system include a high peak power (1.5 kW) EIKA transmitter, low noise receiver, and PC-based digital receiver. In addition to an internal calibration procedure, an electronically controlled deflector plate mounted on the roof of the MMCR shelter will be used to periodically illuminate a

372

ARM - Publications: Science Team Meeting Documents: Assessing physical  

NLE Websites -- All DOE Office Websites (Extended Search)

Assessing physical processes in the ECMWF model forecasts through the ARM Assessing physical processes in the ECMWF model forecasts through the ARM SGP site measurements Neggers, Roel European Centre for Medium-range Weather Forecasts (ECMWF) Cheinet, Sylvain ECMWF (UK) Beljaars, Anton ECMWF Koehler, M European Centre for Medium-range Weather Forecasts, Reading, Morcrette, Jean-Jacques European Centre for Medium-Range Weather Forecasts Viterbo, Pedro ECMWF In this study, we compare short-term weather forecasts of the ECMWF model (Integrated Forecast System, IFS) to measurements at the Southern Great Plains (SGP) site of the Atmospheric Radiation Measurement (ARM) program in July 2003. By using a number of ARM instruments and complementary satellite and radar network data, a number of systematic deficiencies are characterized in the IFS, focusing on mixing processes.

373

NNSA hosts annual Stewardship Science Academic Alliances Symposium |  

National Nuclear Security Administration (NNSA)

annual Stewardship Science Academic Alliances Symposium | annual Stewardship Science Academic Alliances Symposium | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > NNSA hosts annual Stewardship Science Academic Alliances Symposium NNSA hosts annual Stewardship Science Academic Alliances Symposium Posted By Office of Public Affairs

374

SLAC National Accelerator Laboratory - Annual Science Bowl at...  

NLE Websites -- All DOE Office Websites (Extended Search)

Annual Science Bowl at SLAC a Launch Pad for National Competition By Diane Rezendes Khirallah February 14, 2012 More than 100 science students from 20 Bay Area high schools...

375

ARM - Publications: Science Team Meeting Documents: Determination of  

NLE Websites -- All DOE Office Websites (Extended Search)

Determination of Aerosol and Surface Reflectance Characteristics at the ARM Determination of Aerosol and Surface Reflectance Characteristics at the ARM CART Site Using MISR Observations Martonchik, John Jet Propulsion Laboratory Diner, David Jet Propulsion Laboratory Kahn, Ralph Jet Propulsion Laboratory Abdou, Wedad Jet Propulsion Laboratory Gaitley, Barbara Jet Propulsion Laboratory Aerosol optical depth and surface directional reflectance at the ARM CART site are routinely determined from data obtained with the Multi-angle Imaging SpectroRadiometer (MISR) instrument on the Terra platform. The observations span the four years 2001-2004, with an overpass frequency of about four views per month. The MISR aerosol/surface retrieval process provides aerosol products at a spatial resolution of 17.6 km and surface products at a higher resolution of 1.1 km. This study is part of a larger

376

ARM - Publications: Science Team Meeting Documents: AERI Thermodynamic  

NLE Websites -- All DOE Office Websites (Extended Search)

AERI Thermodynamic Profiling VAP Improvements and Status AERI Thermodynamic Profiling VAP Improvements and Status Feltz, Wayne University of Wisconsin Howell, Ben University of Wisconsin-Madison Turner, David Pacific Northwest National Laboratory Mahon, Rick Pacific Northwest National Laboratory Knuteson, Robert University Of Wisconsin The Atmospheric Emitted Radiance Interferometer (AERI) was one of the primary instruments developed under the DOE ARM instrument development program (IDP) to be deployed to the Climate Research Facility (CRF) Southern Great Plains (SGP) central site near Lamont, Oklahoma. A prototype AERI was deployed in March 1993 where it collected data until the first AERI operational instrument replaced it in July 1999. The ARM archive contains AERI data from the ARM CART SGP central facility site from January

377

ARM - Publications: Science Team Meeting Documents: Cloud Radiative Forcing  

NLE Websites -- All DOE Office Websites (Extended Search)

Cloud Radiative Forcing at the ARM Climate Research Facility: Part 2. The Cloud Radiative Forcing at the ARM Climate Research Facility: Part 2. The Vertical Redistribution of Radiant Energy by Clouds. Mace, Gerald University of Utah Benson, Sally University of Utah Kato, Seiji Hampton University/NASA Langley Research Center Documentation with data of the effects of clouds on the radiant energy balance of the surface and atmosphere represent a critical shortcoming in the set of observations that are needed to ascertain the validity of model simulations of the earth's climate. While clouds are known to cool the climate system from TOA radiation budget studies, the redistribution of energy between the surface and atmosphere and within the atmosphere by clouds has not been examined in detail. Using data collected at the Atmospheric Radiation Measurement Program (ARM) Southern Great Plains (SGP)

378

Department of Energy Announces 20th Annual National Science Bowl |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

th Annual National Science Bowl th Annual National Science Bowl Department of Energy Announces 20th Annual National Science Bowl April 23, 2010 - 12:00am Addthis WASHINGTON, D.C. - US Energy Secretary Steven Chu announced that students from sixty-eight high school teams and thirty-seven middle school teams will compete next weekend for championship titles in the U.S. Department of Energy's 20th annual National Science Bowl in Washington, D.C. The participating teams - ranging from forty-two states, the District of Columbia, Puerto Rico and the U.S. Virgin Islands - will be quizzed on a range of science disciplines including biology, chemistry, earth science, physics and astronomy, as well as math; and vie for trophies and prizes, including $1,000 for their school science programs as well as an

379

ORNL Neutron Sciences Annual Report for 2007  

Science Conference Proceedings (OSTI)

This is the first annual report of the Oak Ridge National Laboratory Neutron Sciences Directorate for calendar year 2007. It describes the neutron science facilities, current developments, and future plans; highlights of the year's activities and scientific research; and information on the user program. It also contains information about education and outreach activities and about the organization and staff. The Neutron Sciences Directorate is responsible for operation of the High Flux Isotope Reactor and the Spallation Neutron Source. The main highlights of 2007 were highly successful operation and instrument commissioning at both facilities. At HFIR, the year began with the reactor in shutdown mode and work on the new cold source progressing as planned. The restart on May 16, with the cold source operating, was a significant achievement. Furthermore, measurements of the cold source showed that the performance exceeded expectations, making it one of the world's most brilliant sources of cold neutrons. HFIR finished the year having completed five run cycles and 5,880 MWd of operation. At SNS, the year began with 20 kW of beam power on target; and thanks to a highly motivated staff, we reached a record-breaking power level of 183 kW by the end of the year. Integrated beam power delivered to the target was 160 MWh. Although this is a substantial accomplishment, the next year will bring the challenge of increasing the integrated beam power delivered to 887 MWh as we chart our path toward 5,350 MWh by 2011.

Anderson, Ian S [ORNL; Horak, Charlie M [ORNL; Counce, Deborah Melinda [ORNL; Ekkebus, Allen E [ORNL

2008-07-01T23:59:59.000Z

380

Armed forces career exploration for high school students in the fields of engineering and science. Final report  

SciTech Connect

Morgan State University`s School of Engineering conducted its third annual Armed Forces Career Exploration program for high school students in the fields of engineering and science. The four week program was jointly sponsored by the US Army Laboratory Command (Ballistics Research Laboratory and Human Engineering Laboratory) and US Department of Energy (Los Alamos National Laboratory). The environment in a predominantly urban school system is such that a significant number of very capable students reach the eleventh grade without plans for the future. These students as a result of teacher influence have taken lower level math and science courses and we feel by participating in this program will see reasons for pursuing higher level math and science courses their last two years in high school. Inasmuch as intervention programs have not yet significantly affected the profile of these schools this pool of students represents an opportunity to make an early impact on the number of students that enter college intending to major in math, science or engineering. This report presents the program that provided selected students with pre-engineering and science enrichment experiences designed to enhance their understanding of engineering, increase their awareness of career opportunities in science and engineering, advance their readiness to enter temporary job situation, and foster the development of self-confidence in their individual capabilities.

Not Available

1993-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "annual arm science" 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

ARM - Publications: Science Team Meeting Documents: Millimeter-wave (183  

NLE Websites -- All DOE Office Websites (Extended Search)

Millimeter-wave (183 GHz) Radiometer for High Sensitivity Water Vapor Millimeter-wave (183 GHz) Radiometer for High Sensitivity Water Vapor Measurements at the North Slope of Alaska ARM Site Pazmany, Andrew ProSensing Inc. Funded by a Phase II DOE SBIR contract, ProSensing Inc. is developing a turn-key 183 GHz water vapor radiometer for measuring low concentrations of atmospheric water vapor and liquid water at the North Slope of Alaska ARM site during the dry winter months. The first prototype instrument measures brightness temperature at four double sideband channels centered 1, 3, 7 and 14 GHz from the 183.31 GHz water vapor resonance line. The combination of 0.1 K delta T measurement precision and less than 1 K accuracy integrated hot (~350 K) and warm (~300 K) calibration targets, is expected to result an absolute water vapor measurement accuracy of less than 0.1 mm

382

ARM - Publications: Science Team Meeting Documents: Testing and Deployment  

NLE Websites -- All DOE Office Websites (Extended Search)

Testing and Deployment of an Infrared Thermometer Network at the ARM Testing and Deployment of an Infrared Thermometer Network at the ARM Southern Great Plains Climate Research Facility Morris, Victor Pacific Northwest National Laboratory Long, Chuck Pacific Northwest National Laboratory To increase our ability to calculate heating rate profiles to study the variability across the Global Climate Model scale area and for inferring information about distribution and character of cloudiness across the Southern Great Plains (SGP) domain, downwelling Infrared Thermometers (IRT) will be installed at the SGP Extended Facilities (EF). Initially, IRTs will be installed at five of the twenty-one EFs and one at the Central Facility (CF). The sky brightness temperature measurements will be sampled at a rate of 5 Hz to capture the inherent variability under cloudy and partly cloudy

383

ARM - Publications: Science Team Meeting Documents: Seasonal Dependance of  

NLE Websites -- All DOE Office Websites (Extended Search)

Seasonal Dependance of the Infrared Land Surface Emissivity in the Vicinity Seasonal Dependance of the Infrared Land Surface Emissivity in the Vicinity of the ARM SGP Central Facility Knuteson, Robert University Of Wisconsin Feltz, Wayne University of Wisconsin Revercomb, Henry University Of Wisconsin-Madison Tobin, David University of Wisconsin-Madison Satellite observations have been used to derive a seasonal dependance of the infrared land surface emissivity in the vicinity of the ARM Southern Great Plains (SGP) Central Facility site. In particular, the observations of the Atmospheric InfraRed Sounder (AIRS) on the NASA EOS Aqua platform have been used over the two year period from Sept 2002 to Sept 2004 to derive spectra of IR land surface emissivity across the IR window regions. These satellite observations have been used to empirically fit the

384

ARM - Publications: Science Team Meeting Documents: MICROBASE, A Continuous  

NLE Websites -- All DOE Office Websites (Extended Search)

MICROBASE, A Continuous Baseline Microphysical Retrieval: Status and Future MICROBASE, A Continuous Baseline Microphysical Retrieval: Status and Future Plans Miller, Mark Brookhaven National Laboratory Johnson, Karen Brookhaven National Laboratory Michael, Paul Brookhaven National Laboratory Mace, Gerald University of Utah The MICROBASE_PI and MICROBASE_PA value-added products (VAPs) are integral components of the Broadband Heating Rate Profile (BBHRP) project of the Atmospheric Radiation Measurement (ARM) Program. The goal of the BBHRP project is to determine atmospheric heating and cooling rate profiles in the column above the active sensors at each ARM Climate Research Facility (ACRF) sites and within a larger volume around each site, representative of a global climate model grid cell. To produce the heating rate profiles,

385

ARM - Publications: Science Team Meeting Documents: A decade long aerosol  

NLE Websites -- All DOE Office Websites (Extended Search)

A decade long aerosol and cloud statistics and aerosol indirect effect at A decade long aerosol and cloud statistics and aerosol indirect effect at the ARM SGP site Min, Qilong State University of New York at Albany Duan, Minzheng State University of New York at Albany Harrison, Lee State University of New York Joseph, Everette Howard University Twelve-year data of MFRSR and MWR have been used to derive aerosol and cloud optical properties at the ARM SGP. Diurnal, monthly, seasonal and interannual variability of aerosol (optical depth and Angstrom coefficient) and cloud (optical depth and effective radius) have been analyzed. We specially focused on aerosol-cloud interactions. We found a signature of indirect aerosol effect for summer data: increased aerosol index has a statistically-significant anti-correlation with mean effective radius. No

386

ARM - Publications: Science Team Meeting Documents: The SGP Aerosol...  

NLE Websites -- All DOE Office Websites (Extended Search)

banner Cart Icon Cart | Home | People | Site Index Atmospheric Radiation Measurement Climate Research Facility US Department of Energy About Science Campaigns Sites Instruments...

387

ARM - 2007 Performance Metrics  

NLE Websites -- All DOE Office Websites (Extended Search)

7 Performance Metrics 7 Performance Metrics Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) ARM Science Team Meetings User Meetings Annual Meetings of the Atmospheric System Research (ASR) Science Team and Fall Working Groups Accomplishments Read about the 20 years of accomplishments (PDF, 696KB) from the ARM Program and user facility. Performance Metrics ASR Metrics 2009 2008 2007 2006 2007 Performance Metrics A Single Column Model (SCM) represents the evolution of the atmosphere in a single grid box of a Global Climate Model (GCM). This illustration represents the observing strategy of ARM, which takes continuous atmospheric observations from fixed sites in three climate regimes around the world. A Single Column Model (SCM) represents the evolution of the atmosphere in a

388

ARM - 2008 Performance Metrics  

NLE Websites -- All DOE Office Websites (Extended Search)

8 Performance Metrics 8 Performance Metrics Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) ARM Science Team Meetings User Meetings Annual Meetings of the Atmospheric System Research (ASR) Science Team and Fall Working Groups Accomplishments Read about the 20 years of accomplishments (PDF, 696KB) from the ARM Program and user facility. Performance Metrics ASR Metrics 2009 2008 2007 2006 2008 Performance Metrics Each year, the ARM Program must submit to DOE an overall performance measure related to scientific achievement. The overall performance measure includes specific metrics for reporting progress each quarter. This reporting process includes support documentation (usually a report or data file) appropriate for the metric. Overall Performance Measures

389

Earth Sciences Division annual report 1990  

Science Conference Proceedings (OSTI)

This Annual Report presents summaries of selected representative research activities grouped according to the principal disciplines of the Earth Sciences Division: Reservoir Engineering and Hydrogeology, Geology and Geochemistry, and Geophysics and Geomechanics. Much of the Division`s research deals with the physical and chemical properties and processes in the earth`s crust, from the partially saturated, low-temperature near-surface environment to the high-temperature environments characteristic of regions where magmatic-hydrothermal processes are active. Strengths in laboratory and field instrumentation, numerical modeling, and in situ measurement allow study of the transport of mass and heat through geologic media -- studies that now include the appropriate chemical reactions and the hydraulic-mechanical complexities of fractured rock systems. Of particular note are three major Division efforts addressing problems in the discovery and recovery of petroleum, the application of isotope geochemistry to the study of geodynamic processes and earth history, and the development of borehole methods for high-resolution imaging of the subsurface using seismic and electromagnetic waves. In 1989 a major DOE-wide effort was launched in the areas of Environmental Restoration and Waste Management. Many of the methods previously developed for and applied to deeper regions of the earth will in the coming years be turned toward process definition and characterization of the very shallow subsurface, where man-induced contaminants now intrude and where remedial action is required.

NONE

1991-06-01T23:59:59.000Z

390

Earth Sciences Division annual report 1981. [Lead abstract  

DOE Green Energy (OSTI)

Separate abstracts were prepared for the 59 papers of the 1981 annual report of the Earth Sciences Division at Lawrence Berkeley Laboratory. The general topics covered included nuclear waste isolation, geophysics and reservoir engineering, and geosciences. (KRM)

Not Available

1982-09-01T23:59:59.000Z

391

NUCLEAR SCIENCE DIVISION ANNUAL REPORT 1979-1980  

E-Print Network (OSTI)

1979). {Laboratory for Nuclear Studies, Osaka University,D. Loveland, and G. T. Seaborg, Nuclear Science Div. AnnualBohr and B. R. Hottel son. Nuclear Structure Vol. 1 (W. A.

Cerny, J.

2010-01-01T23:59:59.000Z

392

Chemical and Laser Sciences Division annual report 1989  

SciTech Connect

The Chemical and Laser Sciences Division Annual Report includes articles describing representative research and development activities within the Division, as well as major programs to which the Division makes significant contributions.

Haines, N. (ed.)

1990-06-01T23:59:59.000Z

393

ARM - Publications: Science Team Meeting Documents: University of Wisconsin  

NLE Websites -- All DOE Office Websites (Extended Search)

University of Wisconsin High Spectral Resolution Lidar operations during University of Wisconsin High Spectral Resolution Lidar operations during MPACE Eloranta, Edwin University of Wisconsin The Arctic High Spectral Resolution Lidar(AHSRL) operated at the North Slope ARM site as part of MPACE from 24-Sept-04 to 17-Nov-04. Data was archived 24-hours/day for the entire period with only minor interruptions: One day data was lost due to a problem in the laser cooling system, and one-half of a day was lost due to an electrical power failure at the site. All of the data is archived on our web site and can be accessed using web routines which process data on demand. This allows users to specify the exact time and altitude range of the data they wish acquire and to specify both the temporal and spatial averaging which is most appropriate for their

394

ARM - Publications: Science Team Meeting Documents: Establishing Continuous  

NLE Websites -- All DOE Office Websites (Extended Search)

Establishing Continuous Atmospheric Profiles at the North Slope of Alaska Establishing Continuous Atmospheric Profiles at the North Slope of Alaska ACRF Delamere, Jennifer Atmospheric and Environmental Research, Inc. Turner, David Pacific Northwest National Laboratory Mlawer, Eli Atmospheric & Environmental Research, Inc. Clough, Shepard Atmospheric and Environmental Research Miller, Mark Brookhaven National Laboratory Troyan, David Brookhaven National Laboratory Clothiaux, Eugene The Pennsylvania State University Accurate and continuous vertical profiles of the atmospheric state above the North Slope of Alaska ARM Climate Research Facility (NSA ACRF) are a necessity for both accurate forward radiative transfer calculations and cloud microphysical retrievals. In particular, such profiles are a critical component of two important initiatives at the NSA site, the Broadband

395

ARM - Publications: Science Team Meeting Documents: Ensemble Single Column  

NLE Websites -- All DOE Office Websites (Extended Search)

Ensemble Single Column Modelling (ESCM) in the Tropical Western Pacific Ensemble Single Column Modelling (ESCM) in the Tropical Western Pacific Hume, Timothy Bureau of Meteorology Research Centre Jakob, Christian BMRC Single column models (SCMs) are useful tools for the evaluation of parameterisations of radiative and moist processes used in general circulation models. Most SCM studies to date have concentrated on regions where there is a sufficiently dense observational network to derive the required forcing data, such as the Southern Great Plains. This poster describes an ensemble single column modelling (ESCM) approach, where an ensemble of SCM forcing data sets are derived from numerical weather prediction (NWP) analyses. The technique is applied to SCM runs at the Manus Island and Nauru ARM sites in the Tropical Western Pacific (TWP). It

396

ARM - Publications: Science Team Meeting Documents: Using EOF analysis to  

NLE Websites -- All DOE Office Websites (Extended Search)

Using EOF analysis to uncover inhomogeneities in data from ground-based Using EOF analysis to uncover inhomogeneities in data from ground-based aerosol monitoring devices Gianelli, Scott NASA/GISS Carlson, Barbara NASA/Goddard Institute for Space Studies Lacis, Andrew NASA/Goddard Institute for Space Studies Empirical Orthogonal Function (EOF) analysis is performed on ground-based shadowband and sun photometer data. The instruments examined for this study include the Rotating Shadowband Spectroradiometer (RSS) and the CIMEL sun photometer CSPHOT located at the central facility of the Southern Great Plains (SGP) site; networks of Multi-Filter Rotating Shadowband Radiometer (MFRSR) devices sponsored by ARM and the USDA; and the network of nephelometers and aerosol particle counters of the Climate Monitoring Diagnostics Laboratory (CMDL). The original purpose of this investigation

397

ARM - Publications: Science Team Meeting Documents: Spatially Distributed  

NLE Websites -- All DOE Office Websites (Extended Search)

Spatially Distributed CO2, Sensible, and Latent Heat Fluxes over the Spatially Distributed CO2, Sensible, and Latent Heat Fluxes over the Southern Great Plains Biraud, Sebastien Lawrence Berkeley National Laboratory Riley, William Lawrence Berkeley National Laboratory Fischer, Marc Lawrence Berkeley National Laboratory Torn, Margaret Lawrence Berkeley National Laboratoroy Berry, Joseph Carnegie Inst.of Washington Cooley, Heather Lawrence Berkeley National Laboratory Vegetation and vegetation processes strongly influence the spatial distribution of sensible and latent heat fluxes, as well as controlling ecosystem-atmosphere CO2 exchange. Estimating spatially distributed ecosystem fluxes is important for ARM cloud modeling and for the North American Carbon Program. We describe here a methodology to estimate surface energy fluxes and net ecosystem CO2 Exchange (NEE) continuously over the

398

ARM - Publications: Science Team Meeting Documents: Rotating Shadowband  

NLE Websites -- All DOE Office Websites (Extended Search)

Rotating Shadowband Spectroradiometer (RSS) at SGP: Performance, Data Rotating Shadowband Spectroradiometer (RSS) at SGP: Performance, Data Processing, and Value-Added Products Kiedron, Piotr State University of New York Albany Schlemmer, Jim The first ARM owned RSS was deployed at SGP central site in May 2003. This RSS provides direct-normal, diffuse-horizontal andtotal-horizontal components of irradiance at 1001 pixels in 360nm-1050nm spectral range every minute between dawn and dusk. The instrument operated continuously since the deployment date. At first bi-weekly radiometric calibrations were instituted and upon the discovery of significant responsivity drift this rigorous calibration schedule was continued till present. However the rate of change was steadily decreasing. By September 2004 the drift was less than 1% per month. Within three month from deployment date a slight

399

ARM - Publications: Science Team Meeting Documents: Validation of infrared  

NLE Websites -- All DOE Office Websites (Extended Search)

Validation of infrared cloud radiative transfer simulations and spectral Validation of infrared cloud radiative transfer simulations and spectral cloud properties retrievals using S-HIS, AERI and HSRL measurements from M-PACE Holz, Robert University of Wisconsin, CIMMS DeSlover, Daniel University of Wisconsin Revercomb, Henry University Of Wisconsin-Madison Tobin, David University of Wisconsin-Madison Knuteson, Robert University Of Wisconsin Turner, David Pacific Northwest National Laboratory Eloranta, Edwin University of Wisconsin As part of the Mixed-Phase Arctic Cloud Experiment (M-PACE) the Scanning High spectral resolution Interferometer Sounder (S-HIS) flew on the Proteus high altitude aircraft with the ARM-UAV instrumentation. The University of North Dakota Cessna Citation capable of cloud situ measurements was coordinated with the Proteus to obtain coincident down looking and situ

400

ARM - Publications: Science Team Meeting Documents: Clouds in the Darwin  

NLE Websites -- All DOE Office Websites (Extended Search)

Clouds in the Darwin area and their relation to large-scale conditions Clouds in the Darwin area and their relation to large-scale conditions Jakob, Christian BMRC Hoeglund, Sofia Lulea University of Technology This poster shows a climatological overview of the cloud cover in the Darwin region (location of a TWP ARM site) in the very north of Australia. Information on optical thickness and cloud top pressure from the ISCCP Stage D1 product over the time period 1985 to 2000 has been used to examine how the cloud cover changes over the course of a year, and also how it is affected by the seasonal changes in the region. The most remarkable changes can be seen during the wet (summer) season, when wet westerly winds sweep in over Darwin and dramatically change the weather conditions. By dividing the cloud cover into cloud regimes, one can also see an

Note: This page contains sample records for the topic "annual arm science" 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

ARM - Publications: Science Team Meeting Documents: Deployment of a  

NLE Websites -- All DOE Office Websites (Extended Search)

Deployment of a scintillometer for optical turbulence investigation at NSA Deployment of a scintillometer for optical turbulence investigation at NSA - Barrow Moudry, Dana University of Alaska Fairbanks Sassen, Kenneth University of Alaska Fairbanks Vaucher, Gail Army Research Laboratory Zak, Bernard Sandia National Laboratories The University of Alaska Fairbanks in collaboration with the White Sands Army Research Lab deployed a reciprocal-path scintillometer to the ARM - NSA site at Barrow in fall 2004 for investigation of optical turbulence over the course of a year. The instrument consists of a transmitter and a receiver located approximately 1km apart. The instrument transmitter includes two arrays of nearIR LEDs which emit light in a 125-Hz pulsed mode. The receiver measures the temporal variability of the radiation after

402

Annual Report, 2006 THE COLLEGE OF SCIENCE  

E-Print Network (OSTI)

of Science Dean Database Publications COUNT. Research Presentations As reported by faculty and compiled from the College of Science Dean Database Presenta- tions COUNT. Federal

403

ARM - ARM Organization  

NLE Websites -- All DOE Office Websites (Extended Search)

ARMARM Organization ARMARM Organization Laboratory Partners Nine DOE national laboratories share the responsibility of managing and operating the ARM Climate Research Facility. ARM Group Links Science Board SISC Charter Data Archive Data Management Facility Data Quality Program Engineering Support External Data Center ARM Organization The ARM Climate Research Facility operates field research sites around the world for global change research. Three primary locations-Southern Great Plains, Tropical Western Pacific, North Slope of Alaska-plus aircraft and the portable ARM Mobile Facilities-are heavily instrumented to collect massive amounts of atmospheric measurements needed to create data files. Scientists use these data to study the effects and interactions of sunlight, clouds, and radiant energy, as well as interdisciplinary research

404

Annual Report 2010 Computer Science Department  

E-Print Network (OSTI)

.......................................................................................................... 510 Co-operations to excellent talks from the research areas of operations research, exact algorithms as well as approximation to Technical Computer Science; Electrical Engineering Fundamentals of Computer Science; Operating Systems

Kobbelt, Leif

405

2011 Annual Planning Summary for Science (SC)  

Energy.gov (U.S. Department of Energy (DOE))

The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2011 and 2012 within Science (SC).

406

ARM - Publications: Science Team Meeting Documents: Observations of Natural  

NLE Websites -- All DOE Office Websites (Extended Search)

Observations of Natural Variability in Marine Stratocumulus Clouds Observations of Natural Variability in Marine Stratocumulus Clouds Albrecht, Bruce University of Miami Kollias, Pavlos RSMAS/University of Miami Jo, Ieng Rosentiel School of Marine & Atmospheric Science Ghate, Virendra RSMAS/Univ. Miami Serpetzoglou, Efthymious Minnis, Patrick NASA Langley Research Center Sun-Mack, Szedung SAIC Large to mesoscale features affecting the albedo of marine stratocumulus clouds are observed frequently and can have a substantial impact on the overall albedo of the subtropical cloud decks. One such naturally occurring feature-defined as a cloud rift-is characterized as a large-scale, persistent area of broken, low reflectivity stratocumulus clouds usually surrounded by a solid deck of stratocumulus. We review results from a

407

Wolfgang K.H. Panofsky: Physics, Science Policy, and Arms Control  

Science Conference Proceedings (OSTI)

Wolfgang K. H. Panofsky, professor at Stanford University and founding director of the Stanford Linear Accelerator, was a legendary figure in physics in the second half of the 20th century. He is respected for his contribution in three important areas: as a scientist who advanced particle physics and accelerator development, as the founder of SLAC, a research laboratory of international rank, and a long-time advisor to the US government on science policy, on national security, and on arms control. Over many years he was the outstanding leader of the US National Academy of Sciences efforts to advise the US government on the need for international agreements on nuclear non-proliferation and arms reduction. This presentation will high light the accomplishment of the gentleman who became a legendary and beloved figure to all who had a chance to meet and interact with him, and who called him simply Pief.

Luth, Vera (SLAC)

2010-10-13T23:59:59.000Z

408

Photon Sciences Directorate | 2010 Annual Report | DISCOVERY at Light Speed  

NLE Websites -- All DOE Office Websites (Extended Search)

BNL People BNL People 2010 ANNUAL REPORT Photon Sciences Directorate at Brookhaven National Laboratory Reflections on the Year Steve Dierker Steve Dierker, Associate Laboratory Director for Photon Sciences This is a very exciting period for photon sciences at Brookhaven National Laboratory. It is also a time of unprecedented growth for the Photon Sciences Directorate, which operates the National Synchrotron Light Source (NSLS) and is constructing NSLS-II, both funded by the Department of Energy's Office of Science. Reflecting the quick pace of our activities, we chose the theme "Discovery at Light Speed" for the directorate's 2010 annual report, a fiscal year bookended by October 2009 and September 2010. The year began with the news that NSLS users Venki Ramakrishnan of

409

Annual Report of the Institute for Frontier Medical Sciences Kyoto University  

E-Print Network (OSTI)

Annual Report of the Institute for Frontier Medical Sciences Kyoto University #12;#12;Institute for Frontier Medical Sciences 1 2 3 4 5 6 #12;#12;Institute for Frontier Medical Sciences 1 #12;Annual Report 2011 2 #12;Institute for Frontier Medical Sciences #12;Annual Report 2011 3 #12;Institute for Frontier

Takada, Shoji

410

Annual Report, 2008 THE COLLEGE OF SCIENCE  

E-Print Network (OSTI)

Nuclear Fuels · Carbon Sequestra.on Climate Measurement & Modeling If you Measurement and Detec.on Science And its special facili.es for: · Nanomaterials

411

Photon Sciences Directorate | 2010 Annual Report | People  

NLE Websites -- All DOE Office Websites (Extended Search)

We the People We the People we the people Over 3,000 people carried out the activities of the Photon Sciences Directorate during FY10. This included more than 380 Photon Sciences staff members, 36 employees from other Brookhaven Lab organizations, nearly 340 contractors, and more than 2,200 visiting scientists - or "users" - who came to NSLS during the year to run experiments in fields ranging from biology to materials science. Among the Photon Sciences staff, 22 percent were scientists, 32 percent were professionals (including engineers), 31 percent were technicians, 11 percent were support staff, and 4 percent were managers. Staff from other Brookhaven Lab organizations, who typically worked 50 percent or more of their time on Photon Sciences activities, came from

412

ARM - 2009 Performance Metrics  

NLE Websites -- All DOE Office Websites (Extended Search)

9 Performance Metrics 9 Performance Metrics Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) ARM Science Team Meetings User Meetings Annual Meetings of the Atmospheric System Research (ASR) Science Team and Fall Working Groups Accomplishments Read about the 20 years of accomplishments (PDF, 696KB) from the ARM Program and user facility. Performance Metrics ASR Metrics 2009 2008 2007 2006 2009 Performance Metrics Improve Climate Models - Develop a coupled climate model with fully interactive carbon and sulfur cycles, as well as dynamic vegetation to enable simulations of aerosol effects, carbon chemistry, and carbon sequestration by the land surface and oceans and the interactions between the carbon cycle and climate. In fiscal year 2009: Provide improved climate

413

Nuclear science. Annual report, July 1, 1980-June 30, 1981  

Science Conference Proceedings (OSTI)

This annual report describes the scientific research carried out within the Nuclear Science Division between July 1, 1980 and June 30, 1981. The principal activity of the division continues to be the experimental and theoretical investigation of the interaction of heavy ions with target nuclei. Complementary research programs in light-ion nuclear science, in nuclear data evaluations, and in the development of advanced instrumentation are also carried out.

Friedlander, E.M. (ed.)

1982-06-01T23:59:59.000Z

414

Geosciences program annual report 1978. [LBL Earth Sciences Division  

DOE Green Energy (OSTI)

This report is a reprint of the Geosciences section of the LBL Earth Sciences Division Annual Report 1978 (LBL-8648). It contains summary papers that describe fundamental studies addressing a variety of earth science problems of interest to the DOE. They have applications in such diverse areas as geothermal energy, oil recovery, in situ coal gasification, uranium resource evaluation and recovery, and earthquake prediction. Completed work has been reported or likely will be in the usual channels. (RWR)

Witherspoon, P.A.

1978-01-01T23:59:59.000Z

415

Molecular Science Research Center 1992 annual report  

Science Conference Proceedings (OSTI)

The Molecular Science Research Center is a designated national user facility, available to scientists from universities, industry, and other national laboratories. After an opening section, which includes conferences hosted, appointments, and projects, this document presents progress in the following fields: chemical structure and dynamics; environmental dynamics and simulation; macromolecular structure and dynamics; materials and interfaces; theory, modeling, and simulation; and computing and information sciences. Appendices are included: MSRC staff and associates, 1992 publications and presentations, activities, and acronyms and abbreviations.

Knotek, M.L.

1994-01-01T23:59:59.000Z

416

Earth Sciences Division annual report 1980  

DOE Green Energy (OSTI)

Summaries of the highlights of programs in the Earth Sciences Division are presented under four headings; Geosciences, Geothermal Energy Development, Nuclear Waste Isolation, and Marine Sciences. Utilizing both basic and applied research in a wide spectrum of topics, these programs are providing results that will be of value in helping to secure the nation's energy future. Separate abstracts have been prepared for each project for inclusion in the Energy Data Base. (DMC)

Not Available

1981-07-01T23:59:59.000Z

417

ARM - Site Index  

NLE Websites -- All DOE Office Websites (Extended Search)

govSite Index govSite Index Expand | Collapse Site Index Videos Image Library About ARM About ARM (home) ARM and the Recovery Act ARM and the Recovery Act (home) ARM Recovery Act Project FAQs Recovery Act Instruments ARM Climate Research Facility Contributions to International Polar Year (IPY) ARM Climate Research Facility Contributions to International Polar Year (IPY) (home) ARM Education and Outreach Efforts Support IPY Research Support for International Polar Year (IPY) ARM Organization ARM Organization (home) Laboratory Partners ARM Safety Policy ARM Science Board ARM Science Board (home) Board Business Become a User Comments and Questions Contacts Contacts (home) ARM Engineering and Operations Contacts Facility Statistics Facility Statistics (home) Historical Field Campaign Statistics

418

Chemical Sciences Division: Annual report 1992  

Science Conference Proceedings (OSTI)

The Chemical Sciences Division (CSD) is one of twelve research Divisions of the Lawrence Berkeley Laboratory, a Department of Energy National Laboratory. The CSD is composed of individual groups and research programs that are organized into five scientific areas: Chemical Physics, Inorganic/Organometallic Chemistry, Actinide Chemistry, Atomic Physics, and Physical Chemistry. This report describes progress by the CSD for 1992. Also included are remarks by the Division Director, a description of work for others (United States Office of Naval Research), and appendices of the Division personnel and an index of investigators. Research reports are grouped as Fundamental Interactions (Photochemical and Radiation Sciences, Chemical Physics, Atomic Physics) or Processes and Techniques (Chemical Energy, Heavy-Element Chemistry, and Chemical Engineering Sciences).

Not Available

1993-10-01T23:59:59.000Z

419

ARM - Events Article  

NLE Websites -- All DOE Office Websites (Extended Search)

5, 2013 [Events, Facility News] 5, 2013 [Events, Facility News] Texas Roundup: Highlights from the American Meteorological Society Meeting in Austin Bookmark and Share Known for its live music scene, Austin came alive with science in January as it hosted the 93rd AMS Annual Meeting. Known for its live music scene, Austin came alive with science in January as it hosted the 93rd AMS Annual Meeting. A record crowd of more than 3,300 scientists from academia, government, and private organizations were corralled in Austin, Texas, for the 93rd AMS Annual Meeting in early January. Though ARM outreach personnel did not participate in the exhibit hall this year, the meeting theme "Taking Predictions to the Next Level: Expanding Beyond Today's Weather, Water, and Climate Forecasting and Projections" was reflected by research in nearly

420

Life Sciences Division annual report, 1988  

Science Conference Proceedings (OSTI)

This report summarizes the research and development activities of Los Alamos National Laboratory's Life Sciences Division for the calendar year 1988. Technical reports related to the current status of projects are presented in sufficient detail to permit the informed reader to assess their scope and significance. Summaries useful to the casual reader desiring general information have been prepared by the Group Leaders and appear in each group overview. Investigators on the staff of the Life Sciences Division will be pleased to provide further information.

Marrone, B.L.; Cram, L.S. (comps.)

1989-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "annual arm science" 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

Fermilab Friends for Science Education Annual Report  

NLE Websites -- All DOE Office Websites (Extended Search)

Education Annual Report 2002 Year Anniversary F 2002 Honorary Board of Directors Edwin L. Goldwasser Professor of Physics, retired University of Illinois Vice Chancellor for Academic Affairs retired, University of Illinois Stanka Jovanovic Manager, retired Fermilab Education Office President, retired Friends of Fermilab Leon M. Lederman Nobel Laureate 1991 President of AAAS Director Emeritus, Fermilab Professor of Physics, Illinois Institute of Technology John Peoples, Jr. Director Emeritus Fermilab Norman F. Ramsey Nobel Laureate Higgins Professor of Physics Harvard University Judith J. Schramm Director's Assistant, retired Fermilab H. Guyford Stever Foreign Secretary, retired National Academy of Engineering Michael Witherell Director Fermilab Michael Albrow

422

Earth Sciences Department Annual Report, 1984  

DOE Green Energy (OSTI)

The Earth Sciences Department at Lawrence Livermore National Laboratory comprises nine different disciplinary and programmatic groups that provide research in the geosciences, including nuclear waste management, containment of nuclear weapons tests, seismic treaty verification, stimulation of natural gas production by unconventional means, and oil shale retorting. Each group's accomplishments in 1984 are discussed, followed by a listing of the group's publications for the year.

Henry, A.L.; Donohue, M.L. (eds.)

1985-09-01T23:59:59.000Z

423

1998 Environmental Management Science Program Annual Report  

SciTech Connect

The Environmental Management Science Program (EMSP) is a collaborative partnership between the DOE Office of Environmental Management (EM), Office of Science (DOE-SC), and the Idaho Operations Office (DOE-ID) to sponsor basic environmental and waste management related research. Results are expected to lead to reduction of the costs, schedule, and risks associated with cleaning up the nation's nuclear complex. The EMSP research portfolio addresses the most challenging technical problems of the EM program related to high level waste, spent nuclear fuel, mixed waste, nuclear materials, remedial action, decontamination and decommissioning, and health, ecology, or risk. The EMSP was established in response to a mandate from Congress in the fiscal year 1996 Energy and Water Development Appropriations Act. Congress directed the Department to ''provide sufficient attention and resources to longer-term basic science research which needs to be done to ultimately reduce cleanup costs, develop a program that takes advantage of laboratory and university expertise, and seek new and innovative cleanup methods to replace current conventional approaches which are often costly and ineffective''. This mandate followed similar recommendations from the Galvin Commission to the Secretary of Energy Advisory Board. The EMSP also responds to needs identified by National Academy of Sciences experts, regulators, citizen advisory groups, and other stakeholders.

1999-03-01T23:59:59.000Z

424

Molecular Science Research Center, 1991 annual report  

SciTech Connect

During 1991, the Molecular Science Research Center (MSRC) experienced solid growth and accomplishment and the Environmental, and Molecular Sciences Laboratory (EMSL) construction project moved forward. We began with strong programs in chemical structure and dynamics and theory, modeling, and simulation, and both these programs continued to thrive. We also made significant advances in the development of programs in materials and interfaces and macromolecular structure and dynamics, largely as a result of the key staff recruited to lead these efforts. If there was one pervasive activity for the past year, however, it was to strengthen the role of the EMSL in the overall environmental restoration and waste management (ER/WM) mission at Hanford. These extended activities involved not only MSRC and EMSL staff but all PNL scientific and technical staff engaged in ER/WM programs.

Knotek, M.L.

1992-03-01T23:59:59.000Z

425

Proceedings of the sixth Atmospheric Radiation Measurement (ARM) Science Team meeting  

Science Conference Proceedings (OSTI)

This document contains the summaries of papers presented at the 1996 Atmospheric Radiation Measurement (ARM) Science Team meeting held at San Antonio, Texas. The history and status of the ARM program at the time of the meeting helps to put these papers in context. The basic themes have not changed. First, from its beginning, the Program has attempted to respond to the most critical scientific issues facing the US Global Change Research Program. Second, the Program has been strongly coupled to other agency and international programs. More specifically, the Program reflects an unprecedented collaboration among agencies of the federal research community, among the US Department of Energy`s (DOE) national laboratories, and between DOE`s research program and related international programs, such as Global Energy and Water Experiment (GEWEX) and the Tropical Ocean Global Atmosphere (TOGA) program. Next, ARM has always attempted to make the most judicious use of its resources by collaborating and leveraging existing assets and has managed to maintain an aggressive schedule despite budgets that have been much smaller than planned. Finally, the Program has attracted some of the very best scientific talent in the climate research community and has, as a result, been productive scientifically.

NONE

1997-06-01T23:59:59.000Z

426

Nuclear Science Division: 1993 Annual report  

Science Conference Proceedings (OSTI)

This report describes the activities of the Nuclear Science Division for the 1993 calendar year. This was another significant year in the history of the Division with many interesting and important accomplishments. Activities for the following programs are covered here: (1) nuclear structure and reactions program; (2) the Institute for Nuclear and Particle Astrophysics; (3) relativistic nuclear collisions program; (4) nuclear theory program; (5) nuclear data evaluation program, isotope project; and (6) 88-inch cyclotron operations.

Myers, W.D. [ed.

1994-06-01T23:59:59.000Z

427

SCIENCE HIGHLIGHTS 2008 ANNUAL REPORT ORNL NEUTRON SCIENCES neutrons...  

NLE Websites -- All DOE Office Websites (Extended Search)

for the treatment of cancers. Wei-Ren Chen, who received his doctorate in nuclear science and engineering at MIT in 2004, is a Clifford G. Shull fellow at ORNL. Chen studies...

428

Annual report, Basic Sciences Branch, FY 1991  

DOE Green Energy (OSTI)

This report summarizes the progress of the Basic Sciences Branch of the National Renewable Energy Laboratory (NREL) from October 1, 1990, through September 30, 1991. Seven technical sections of the report cover these main areas of NREL`s in-house research: Semiconductor Crystal Growth, Amorphous Silicon Research, Polycrystalline Thin Films, III-V High-Efficiency Photovoltaic Cells, Solid-State Theory, Solid-State Spectroscopy, and Superconductivity. Each section explains the purpose and major accomplishments of the work in the context of the US Department of Energy`s National Photovoltaic Research Program plans.

Not Available

1993-04-01T23:59:59.000Z

429

Annual report, Basic Sciences Branch, FY 1991  

DOE Green Energy (OSTI)

This report summarizes the progress of the Basic Sciences Branch of the National Renewable Energy Laboratory (NREL) from October 1, 1990, through September 30, 1991. Seven technical sections of the report cover these main areas of NREL's in-house research: Semiconductor Crystal Growth, Amorphous Silicon Research, Polycrystalline Thin Films, III-V High-Efficiency Photovoltaic Cells, Solid-State Theory, Solid-State Spectroscopy, and Superconductivity. Each section explains the purpose and major accomplishments of the work in the context of the US Department of Energy's National Photovoltaic Research Program plans.

Not Available

1993-04-01T23:59:59.000Z

430

ARM - Facility News Archive  

NLE Websites -- All DOE Office Websites (Extended Search)

Amazon Rainforest Apr 25 Junior Rangers Enjoy Science Education at ARM Facility on Cape Cod Apr 24 A Twist on TwisterTM: ARM Educational Outreach Participates in Community Science...

431

ARM - Education Archive  

NLE Websites -- All DOE Office Websites (Extended Search)

Archive 2013 Apr 25 Junior Rangers Enjoy Science Education at ARM Facility on Cape Cod Apr 24 A Twist on TwisterTM: ARM Educational Outreach Participates in Community Science...

432

Photon Sciences Directorate | 2010 Annual Report | Science Highlights  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Highlights Science Highlights In FY10, Photon Sciences staff and users published 893 articles in journals, conference proceedings, reports, books, dissertations, and patents. Almost 20 percent were published in premiere journals (those that have an impact factor of 6 or greater). The following highlights are representative of this extensive and diverse research, ranging from the creation of new catalysts for alternative energy production to the exploration of the inner workings of diseases like tuberculosis and cancer. FY10 Publication Count Pub Type Total Staff Total Pubs 893 110 Total Journals 747 84 Peer Reviewed Journals 724 81 Peer Reviewed Premier Journals 165 21 Conference Proceedings 68 18 Reports: Technical, Formal, Informal 2 2 Books / Book Chapters 18 4

433

FY 1990 Applied Sciences Branch annual report  

DOE Green Energy (OSTI)

The Applied Sciences Branch actively supports the advancement of DOE/SERI goals for the development and implementation of the solar photovoltaic technology. The primary focus of the laboratories is to provide state-of-the-art analytical capabilities for materials and device characterization and fabrication. The branch houses a comprehensive facility which is capable of providing information on the full range of photovoltaic components. A major objective of the branch is to aggressively pursue collaborative research with other government laboratories, universities, and industrial firms for the advancement of photovoltaic technologies. Members of the branch disseminate research findings to the technical community in publications and presentations. This report contains information on surface and interface analysis, materials characterization, development, electro-optical characterization module testing and performance, surface interactions and FTIR spectroscopy.

Keyes, B.M.; Dippo, P.C. (eds.)

1991-11-01T23:59:59.000Z

434

Contributions of the Atmospheric Radiation Measurement (ARM) Program and the ARM Climate Research Facility to the U.S. Climate Change Science Program  

SciTech Connect

The Earths surface temperature is determined by the balance between incoming solar radiation and thermal (or infrared) radiation emitted by the Earth back to space. Changes in atmospheric composition, including greenhouse gases, clouds, and aerosols can alter this balance and produce significant climate change. Global climate models (GCMs) are the primary tool for quantifying future climate change; however, there remain significant uncertainties in the GCM treatment of clouds, aerosol, and their effects on the Earths energy balance. The 2007 assessment (AR4) by the Intergovernmental Panel on Climate Change (IPCC) reports a substantial range among GCMs in climate sensitivity to greenhouse gas emissions. The largest contributor to this range lies in how different models handle changes in the way clouds absorb or reflect radiative energy in a changing climate (Solomon et al. 2007). In 1989, the U.S. Department of Energy (DOE) Office of Science created the Atmospheric Radiation Measurement (ARM) Program within the Office of Biological and Environmental Research (BER) to address scientific uncertainties related to global climate change, with a specific focus on the crucial role of clouds and their influence on the transfer of radiation in the atmosphere. To address this problem, BER has adopted a unique two-pronged approach: * The ARM Climate Research Facility (ACRF), a scientific user facility for obtaining long-term measurements of radiative fluxes, cloud and aerosol properties, and related atmospheric characteristics in diverse climate regimes. * The ARM Science Program, focused on the analysis of ACRF data to address climate science issues associated with clouds, aerosols, and radiation, and to improve GCMs. This report describes accomplishments of the BER ARM Program toward addressing the primary uncertainties related to climate change prediction as identified by the IPCC.

SA Edgerton; LR Roeder

2008-09-30T23:59:59.000Z

435

Nuclear Science Division 1994 annual report  

Science Conference Proceedings (OSTI)

This report describes the activities of the Nuclear Science Division for the period of January 1, 1994, to December 31, 1994. This was a time of significant accomplishment for all of the programs in the Division. Assembly of the solar neutrino detector at the Sudbury Neutrino Observatory is well under way. All of the components fabricated by LBL were shipped to Sudbury early in the year and our efforts are now divided between assisting the assembly of the detector and preparing software for data analysis once the detector is operational in 1996. Much of the activity at the 88-Inch Cyclotron centered on Gammasphere. The {open_quotes}early implementation{close_quotes} phase of the detector ended in September. This phase was extremely successful, involving over 60 experiments with nearly 200 users from 37 institutions worldwide. The mechanical structure was installed and the final electronic system is expected to operate in March 1995. The Division concurrently hosted a conference on physics for large {gamma}-ray detector arrays at the Clark Kerr Campus at UC Berkeley in August. This was a very successful meeting, reflecting the enthusiasm for this field worldwide. Also at the Cyclotron, the progress toward weak interaction experiments using ultra-thin sources passed a major milestone with the trapping of radioactive {sup 21}Na atoms. We are now engaged in a major upgrade of the experimental area and the outlook is very promising for these novel experiments. Another highlight of research at the Cyclotron was the confirmation of element 106. This development allowed the original LLNL/LBL discovery team to move forward with their proposal to name this element seaborgium.

Myers, W.D. [ed.

1995-06-01T23:59:59.000Z

436

ARM - Facility News Article  

NLE Websites -- All DOE Office Websites (Extended Search)

ARM Kiosk Joins International Science Exhibit in Germany Outdoor pavilions on the Isle of Mainau in Germany feature energy-related science and technology exhibits from May through...

437

ARM - Facility News Article  

NLE Websites -- All DOE Office Websites (Extended Search)

May 15, 2008 Facility News National User Facility Organization Meets to Discuss Progress and Ideas In late April, the ARM Technical Director attended an annual meeting of the...

438

ARM Orientation Workshop  

NLE Websites -- All DOE Office Websites (Extended Search)

Finding " Finding " " Stuff Stuff " " from from ARM Web Site and Data ARM Web Site and Data Archive Archive Orientation for new Science Team Members Topics Topics Navigating ARM web site Navigating ARM web site - - finding ARM information finding ARM information Demo of Archive access Demo of Archive access - - Finding and requesting ARM data files Finding and requesting ARM data files - - (with web shopping cart interface) (with web shopping cart interface) Other Archive access options Other Archive access options - - Brief logical comparison Brief logical comparison - - (additional details as requested) (additional details as requested) Other documentation topics Other documentation topics - - (per user interest and time availability) (per user interest and time availability)

439

ARM - ARM Recovery Act Project FAQs  

NLE Websites -- All DOE Office Websites (Extended Search)

ActARM Recovery Act Project FAQs ActARM Recovery Act Project FAQs Recovery Act Logo Subscribe FAQs Recovery Act Instruments Recovery Act Fact Sheet March 2010 Poster (PDF, 10MB) External Resources Recovery Act - Federal Recovery Act - DOE Recovery Act - ANL Recovery Act - BNL Recovery Act - LANL Recovery Act - PNNL Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send ARM Recovery Act Project FAQs Why is ARM buying new instruments and equipment? The ARM Climate Research Facility (ARM) is receiving $60 million dollars in Recovery Act funding from the U.S. Department of Energy Office of Science to build the next generation facility for climate change research. Using input from past ARM user workshops and ARM working group discussion, ARM has planned for the purchase and deployment of an expansive array of new

440

Nuclear science. Annual report, July 1, 1979-June 30, 1980  

SciTech Connect

This annual report describes the scientific research carried out within the Nuclear Science Division (NSD) during the period between July 1, 1979 and June 30, 1980. The principal objective of the division continues to be the experimental and theoretical investigation of the interactions of heavy ions with target nuclei, complemented with programs in light ion nuclear science, in nuclear data compilations, and in advanced instrumentation development. The division continues to operate the 88 Inch Cyclotron as a major research facility that also supports a strong outside user program. Both the SuperHILAC and Bevalac accelerators, operated as national facilities by LBL's Accelerator and Fusion Research Division, are also important to NSD experimentalists. (WHK)

Myers, W.D.; Friedlander, E.M.; Nitschke, J.M.; Stokstad, R.G. (eds.)

1981-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "annual arm science" 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

Annual report 1992 - Science and Engineering Alliance, Inc.  

SciTech Connect

Twenty years of attention has resulted in little change in the minorities in science pipeline problem. What happened? The answers to this question are many. They are synergistically linked around some complex issues. The Science and Engineering Alliance (SEA) institutions have long focused on the need for more minorities in science and engineering. In fact, the creation of SEA is a demonstration of how the member institutions continue exploring new and innovative ways of addressing the pipeline problem. Combining their resources and appointing a fulltime director to oversee this longterm effort shows commitment. This annual report reviews SEA activities that occurred in 1992 to address the minorities in science problem. The commitment to this challenging problem is evident in the many programs and creative efforts described in this report. Because SEA believes commitment begins with accountability, this report contains facts and figures that demonstrate actual accomplishments by SEA during fiscal year 1992 (the year ending September 30, 1992). Where warranted, the report highlights events from the last quarter of the calendar year.

1998-04-01T23:59:59.000Z

442

Chemistry and Materials Science Department annual report, 1988--1989  

Science Conference Proceedings (OSTI)

This is the first annual report of the Chemistry & Materials Science (C&MS) Department. The principal purpose of this report is to provide a concise summary of our scientific and technical accomplishments for fiscal years 1988 and 1989. The report is also tended to become part of the archival record of the Department`s activities. We plan to publish future editions annually. The activities of the Department can be divided into three broad categories. First, C&MS staff are assigned by the matrix system to work directly in a program. These programmatic assignments typically involve short deadlines and critical time schedules. A second category is longer-term research and development in technologies important to Laboratory programs. The focus and direction of this technology-base work are generally determined by programmatic needs. Finally, the Department manages its own research program, mostly long-range in outlook and basic in orientation. These three categories are not mutually exclusive but form a continuum of technical activities. Representative examples of all three are included in this report. The principal subject matter of this report has been divided into six sections: Innovations in Analysis and Characterization, Advanced Materials, Metallurgical Science and Technology, Surfaces and Interfaces, Energetic Materials and Chemical Synthesis, and Energy-Related Research and Development.

Borg, R.J.; Sugihara, T.T.; Cherniak, J.C.; Corey, C.W. [eds.

1989-12-31T23:59:59.000Z

443

ARM - Facility News Article  

NLE Websites -- All DOE Office Websites (Extended Search)

January 31, 2008 [Facility News] January 31, 2008 [Facility News] ARM Exhibit Showcases Continuous Data at American Meteorological Society Annual Meeting Bookmark and Share During the 88th annual AMS meeting, interested participants stop by the ARM exhibit where ARM researchers answered their questions. During the 88th annual AMS meeting, interested participants stop by the ARM exhibit where ARM researchers answered their questions. In January, ARM joined nearly 100 other exhibitors at the 88th American Meteorological Society annual meeting in New Orleans. This year's meeting was organized around the broad theme of "Enhancing the Connectivity between Research and Applications for the Benefit of Society." More than 3000 attendees from academia, the private sector, and government attended

444

ARM STM Plenary: CS Report  

NLE Websites -- All DOE Office Websites (Extended Search)

8 8 ARM Science Team Meeting 2008 Warren Wiscombe ARM Chief Scientist Brookhaven National Lab Mar 2008 ARM Plenary 2 ARM Chief Scientist Team ARM Chief Scientist Team Ric Cederwall Andy Vogelmann Sharon Zuhoski Yangang Liu Pavlos Kollias Mar 2008 ARM Plenary 3 Submit your... Submit your... science highlights (www.arm.gov) poster PDFs (esp if you win CS Design Award) feedback in text boxes on ARM web pages Also... vote for People's Choice Poster talk to our Thu morning speakers Mar 2008 ARM Plenary 4 Mar 2008 ARM Plenary 5 Existing Existing * CLOWD (Clouds with Low Optical Depth) * BBHRP (BroadBand Heating Rate Profile) * Radar Focus Groups Focus Groups New New * Vertical Velocity for Climate Modelers * Longwave/Microwave * Surface Fluxes Mar 2008 ARM Plenary 6 ARM ARM ' ' s s two fundamental science questions

445

Third Annual Science Alliance Takes Place in Ohio | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Third Annual Science Alliance Takes Place in Ohio Third Annual Science Alliance Takes Place in Ohio Third Annual Science Alliance Takes Place in Ohio October 9, 2012 - 12:14pm Addthis Science Alliance 1 of 5 Science Alliance Students arrive at the welcome tent during the beginning of the two-day Science Alliance, in which more than 900 area high school juniors enjoyed presentations in 14 separate areas on a midway in the X-2207A parking lot. Image: Energy Department's Office of Environmental Management Date taken: 2012-09-25 08:59 Science Alliance 2 of 5 Science Alliance DOE Site Lead Joel Bradburne, Site Director Dr. Vince Adams and Science Alliance team member John Zangri of Fluor-B&W join students in watching one of the presentations during the Science Alliance. Image: Energy Department's Office of Environmental Management

446

ARM - About ARM  

NLE Websites -- All DOE Office Websites (Extended Search)

ARM About Become a User Recovery Act Mission FAQ History Organization Participants Facility Statistics Forms Contacts Facility Documents ARM Management Plan (PDF, 335KB) Field...

447

Chemistry and Materials Science Directorate 2005 Annual Report  

Science Conference Proceedings (OSTI)

In 1952, we began laboratory operations in the barracks building of the Naval Air Station with approximately 50 employees. Today, the Chemistry and Materials Science (CMS) Directorate is a major organization at the Lawrence Livermore National Laboratory with more than 500 employees who continue to contribute to our evolving national security mission. For more than half a century, the mission of the Laboratory revolved primarily around nuclear deterrence and associated defense technologies. Today, Livermore supports a broad-based national security mission, and our specialized capabilities increasingly support emerging missions in human health and energy security. In the future, CMS will play a significantly expanded role in science and technology at the intersection of national security, energy and environment, and health. Our world-class workforce will provide the science and technology base for radically innovative materials to our programs and sponsors. Our 2005 Annual Report describes how our successes and breakthroughs follow a path set forward by our strategic plan and four organizing research themes, each with key scientific accomplishments by our staff and collaborators. Organized into two major sections-research themes and dynamic teams, this report focuses on achievements arising from earlier investments that address future challenges. The research presented in this annual report gives substantive examples of how we are proceeding in each of these four theme areas and how they are aligned with our national security mission. Research Themes: (1) Materials Properties and Performance under Extreme Conditions--We are developing ultrahard nanocrystalline metals, exploring the properties of nanotubes when exposed to very high temperatures, and engineering stronger materials to meet future needs for materials that can withstand extreme conditions. (2) Chemistry under Extreme Conditions and Chemical Engineering to Support National-Security Programs--Our recent discovery of a new source of coherent light adds a new tool to an array of methods we use to more fully understand the properties of materials. Insights into the early stages of polymer crystallization may lead to new materials for our national-security mission and private industry. (3) Science Supporting National Objectives at the Intersection of Chemistry, Materials Science, and Biology--We are improving drug binding for cancer treatment through the use of new tools that are helping us characterize protein-antibody interactions. By probing proteins and nucleic acids, we may gain an understanding of Alzheimer's, Mad Cow, and other neurodegenerative diseases. (4) Applied Nuclear Science for Human Health and National Security--Our work with cyanobacteria is leading to a fuller understanding of how these microorganisms affect the global carbon cycle. We are also developing new ways to reduce nuclear threats with better radiation detectors. Dynamic Teams: The dynamic teams section illustrates the directorate's organizational structure that supports a team environment across disciplinary and institutional boundaries. Our three divisions maintain a close relationship with Laboratory programs, working with directorate and program leaders to ensure an effective response to programmatic needs. CMS's divisions are responsible for line management and leadership, and together, provide us with the flexibility and agility to respond to change and meet program milestones. The three divisions are: Materials Science and Technology Division; Chemistry and Chemical Engineering Division; and Chemical Biology and Nuclear Science Division. By maintaining an organizational structure that offers an environment of collaborative problem-solving opportunities, we are able to nurture the discoveries and breakthroughs required for future successes. The dynamic teams section also presents the work of CMS's postdoctoral fellows, who bring to the Laboratory many of the most recent advances taking place in academic departments and provide a research stimulus to established research teams. Postdo

Diaz De La Rubia, T; Fluss, M J; Rath, K; Rennie, G; Shang, S; Kitrinos, G

2006-08-08T23:59:59.000Z

448

21st Annual Department of Energy National Science Bowl April 30 - May 2 |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

21st Annual Department of Energy National Science Bowl April 30 - 21st Annual Department of Energy National Science Bowl April 30 - May 2 21st Annual Department of Energy National Science Bowl April 30 - May 2 April 25, 2011 - 12:00am Addthis WASHINGTON, D.C. - U.S. Department of Energy (DOE) Secretary Steven Chu announced today that on April 30 through May 2 the DOE will host 69 high school and 41 middle school teams to compete for championship titles at the 21st annual National Science Bowl competition in Washington, D.C. The 110 regional championship teams - from 44 states, the District of Columbia, Puerto Rico and the U.S. Virgin Islands - will be quizzed on various science topics including biology, chemistry, earth science, physics, astronomy, and energy, as well as math. "The U.S. needs the best and the brightest scientists and engineers to help

449

Regional Competitions Begin for the 22nd Annual National Science Bowl |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Competitions Begin for the 22nd Annual National Science Competitions Begin for the 22nd Annual National Science Bowl Regional Competitions Begin for the 22nd Annual National Science Bowl January 20, 2012 - 2:46pm Addthis Washington D.C. - U.S. Energy Secretary Steven Chu announced today that the regional competitions of the 22nd Annual U.S. Department of Energy National Science Bowl will kickoff tomorrow, Saturday, January 21. Thousands of middle and high school students from across the country will face off against one another on a range of science disciplines including biology, chemistry, earth science, physics and astronomy, as well as math, vying for trips to the National Finals in Washington, D.C., which are scheduled for April 26-30, 2012. "To stay competitive in a rapidly advancing world, we must cultivate the

450

ARM - Journal Articles 2008  

NLE Websites -- All DOE Office Websites (Extended Search)

(Citation) The Open Atmospheric Science Journal ARM Turner Validating mixed-phase cloud optical depth retrieved from infrared observations with high spectral resolution...

451

ARM - Events Article  

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User Facility Featured at Atmospheric System Research Science Team Meeting During Tuesday afternoon's plenary session, Dave Turner provided an overview of the ARM Facility and...

452

ARM - Frequently Asked Questions  

NLE Websites -- All DOE Office Websites (Extended Search)

it. Funded by the Department of Energy's Office of Science, data from this scientific user facility - the ARM Climate Research Facility - are particularly useful for the...

453

Remarks by The President at The National Academy of Sciences Annual Meeting  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

at The National Academy of Sciences Annual at The National Academy of Sciences Annual Meeting Remarks by The President at The National Academy of Sciences Annual Meeting April 27, 2009 - 12:00am Addthis THE WHITE HOUSE Office of the Press Secretary _____________________________________________________ For Immediate Release April 27, 2009 REMARKS BY THE PRESIDENT AT THE NATIONAL ACADEMY OF SCIENCES ANNUAL MEETING National Academy of Sciences Washington, D.C. 9:12 A.M. EDT THE PRESIDENT: Well, thank you so much for the wonderful welcome. To President Cicerone, thank you very much for your leadership and for hosting us today. To John Holdren, thanks, John, for the outstanding work that you are doing. I was just informed backstage that Ralph and John both are 1965 graduates of MIT -- same class. And so I'm not sure this is the perfectly

454

Remarks by The President at The National Academy of Sciences Annual Meeting  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Remarks by The President at The National Academy of Sciences Annual Remarks by The President at The National Academy of Sciences Annual Meeting Remarks by The President at The National Academy of Sciences Annual Meeting April 27, 2009 - 12:00am Addthis THE WHITE HOUSE Office of the Press Secretary _____________________________________________________ For Immediate Release April 27, 2009 REMARKS BY THE PRESIDENT AT THE NATIONAL ACADEMY OF SCIENCES ANNUAL MEETING National Academy of Sciences Washington, D.C. 9:12 A.M. EDT THE PRESIDENT: Well, thank you so much for the wonderful welcome. To President Cicerone, thank you very much for your leadership and for hosting us today. To John Holdren, thanks, John, for the outstanding work that you are doing. I was just informed backstage that Ralph and John both are 1965 graduates

455

Materials and Chemical Sciences Division annual report, 1987  

DOE Green Energy (OSTI)

Research programs from Lawrence Berkeley Laboratory in materials science, chemical science, nuclear science, fossil energy, energy storage, health and environmental sciences, program development funds, and work for others is briefly described. (CBS)

Not Available

1988-07-01T23:59:59.000Z

456

ARM TR-008  

NLE Websites -- All DOE Office Websites (Extended Search)

ARM-TR-073 ARM-TR-073 W-band ARM Cloud Radar (WACR) Handbook April 2006 K. B. Widener K. Johnson Work supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research April 2006, ARM TR-073 Contents 1 General Overview ............................................................................................................................... 1 2 Contacts............................................................................................................................................... 1 3 Deployment Locations and History..................................................................................................... 2 4 Near-Real-Time Data Plots .................................................................................................................

457

ARM - Article  

NLE Websites -- All DOE Office Websites (Extended Search)

27, 2009 [Facility News] 27, 2009 [Facility News] Arrival of Recovery Act Funds Sets Wheels In Motion Bookmark and Share So that people can easily recognize the effects of the American Recovery and Reinvestment Act, all projects will be stamped with the Recovery Act logo. So that people can easily recognize the effects of the American Recovery and Reinvestment Act, all projects will be stamped with the Recovery Act logo. Through the American Recovery and Reinvestment Act of 2009 (aka stimulus), the Department of Energy's Office of Science received $1.2 billion. In late May, DOE released approximately $54 million-90 percent-of the $60 million allocated to the ARM Climate Research Facility. During the next 18 months, the ARM Climate Research Facility will purchase and deploy dual-frequency scanning cloud radars to all the ARM sites, enhance several

458

ARM Orientation: Overview and History  

NLE Websites -- All DOE Office Websites (Extended Search)

ARM Orientation: ARM Orientation: Overview and History Warren Wiscombe ARM Chief Scientist Brookhaven & NASA ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation Measurement 2 Mar 2006 ARM Orientation You want me to be Chief Scientist? Can you believe this guy? ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation Measurement 3 Mar 2006 ARM Orientation ARM in a nutshell ARM in a nutshell * * Largest global change research program Largest global change research program funded by the U.S. Department of Energy funded by the U.S. Department of Energy ($44M/yr; ~ ($44M/yr; ~ $10M/yr fo $10M/yr fo r Science Team r Science Team ) ) * * Created to improve cloud and radiation Created to improve cloud and radiation physics and cloud simulation capabilities in physics and cloud simulation capabilities in

459

ARM - ARM Safety Policy  

NLE Websites -- All DOE Office Websites (Extended Search)

Safety Policy Safety Policy About Become a User Recovery Act Mission FAQ Outreach Displays History Organization Participants Facility Statistics Forms Contacts Facility Documents ARM Management Plan (PDF, 335KB) Field Campaign Guidelines (PDF, 1.1MB) ARM Climate Research Facility Expansion Workshop (PDF, 1.46MB) Facility Activities ARM and the Recovery Act Contributions to International Polar Year Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send ARM Safety Policy The ARM Climate Research Facility safety policy states that all activities for which the ARM Climate Research Facility has primary responsibility will be conducted in such a manner that all reasonable precautions are taken to protect the health and safety of employees and the general public. All

460

The 20th Annual National Science Bowl Competition Winds into Action | U.S.  

NLE Websites -- All DOE Office Websites (Extended Search)

The 20th The 20th Annual National Science Bowl Competition Winds into Action News Featured Articles 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Science Headlines Presentations & Testimony News Archives Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 11.10.09 The 20th Annual National Science Bowl Competition Winds into Action Students from Across the Country Prepare for Regional Science Competitions Print Text Size: A A A Subscribe FeedbackShare Page For the past 20 years students have descended on Washington, D.C., every May to compete in the National Science Bowl sponsored by the U.S. Department of Energy's Office of Science. This academic competition began in 1991 to encourage middle and high school-aged students to take a more

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461

Environmental Sciences Division Groundwater Program Office. Annual report, 1993  

SciTech Connect

This first edition of the Martin Marietta Energy Systems, Inc., (Energy Systems) Groundwater Program Annual Report summarizes the work carried out by the Energy Systems GWPO for fiscal year (FY) 1993. This introductory section describes the GWPO`s staffing, organization, and funding sources. The GWPO is responsible for coordination and oversight for all components of the groundwater program at the three Oak Ridge facilities [ORNL, the Oak Ridge Y-12 Plant, and the Oak Ridge K-25 Site], and the PGDP and PORTS, respectively. Several years ago, Energy systems senior management recognized that the manner in which groundwater activities were conducted at the five facilities could result in unnecessary duplication of effort, inadequate technical input to decisions related to groundwater issues, and could create a perception within the regulatory agencies of a confusing and inconsistent approach to groundwater issues at the different facilities. Extensive interactions among management from Environmental Compliance, Environmental Restoration (ER), Environmental Sciences Division, Environmental Safety and Health, and the five facilities ultimately led to development of a net technical umbrella organization for groundwater. On April 25, 1991, the GWPO was authorized to be set up within ORNL thereby establishing a central coordinating office that would develop a consistent technical and administrative direction for the groundwater programs of all facilities and result in compliance with all relevant U.S. Environmental Protection Agency (EPA) regulations such as RCRA and Comprehensive Environmental Restoration, Compensation and Liability Act (CERCLA) as well as U.S. Department of Energy (DOE) regulations and orders. For example, DOE Order 5400.1, issued on November 9, 1988, called for each DOE facility to develop an environmental monitoring program for all media (e.g., air, surface water, and groundwater).

Not Available

1993-09-30T23:59:59.000Z

462

ARM Orientation Workshop  

NLE Websites -- All DOE Office Websites (Extended Search)

Data from the Getting Data from the Data from the Getting Data from the ARM Archive ARM Archive Orientation for new Science Team Members ARM Shopping Cart Tutorial ARM Shopping Cart Tutorial Available at: Available at: http://dev.www.arm.gov/data/arm_orderData_tutorial.html http://dev.www.arm.gov/data/arm_orderData_tutorial.html Types of Quality Information Types of Quality Information Automated products Automated products QC flags QC flags inserted in data files during processing inserted in data files during processing Summaries of flags (data color) Summaries of flags (data color) Manual products Manual products Data Quality Reports (DQRs) Data Quality Reports (DQRs) web accessible reports; delivered as html files after data web accessible reports; delivered as html files after data

463

FY 2000 Environmental Management Science Program Annual Report  

SciTech Connect

This document describes activities of the Environmental Management Science Program for the past year.

2001-03-01T23:59:59.000Z

464

NSF Nanoscale Science and Engineering Center Annual Report  

E-Print Network (OSTI)

NYSTAR Contract # C020071 CENTER FOR NANOSCALE SYSTEMS IN INFORMATION TECHNOLOGIES #12;Annual Report: 2005 - 2006 Center for Nanoscale Systems in Information Technologies Table of Contents 1. Project Annual Report 2005 ­ 2006 3 1. PROJECT SUMMARY The Center for Nanoscale Systems (CNS) has assembled

Gaeta, Alexander L.

465

Atmospheric Radiation Measurement (ARM) Data from ARM's Specific Measurement Categories  

DOE Data Explorer (OSTI)

The Office of Biological and Environmental Research in DOE's Office of Science is responsible for the ARM Program. The ARM Archive physically resides at the Oak Ridge National Laboratory.

466

ARM - AGU Presentations Featuring ARM Data  

NLE Websites -- All DOE Office Websites (Extended Search)

CenterAGU Presentations Featuring ARM Data CenterAGU Presentations Featuring ARM Data Media Contact Lynne Roeder lynne-dot-roeder-at-pnnl-dot-gov @armnewsteam Field Notes Blog Topics Field Notes89 AGU 3 AMIE 10 ARM Aerial Facility 2 ARM Mobile Facility 1 6 ARM Mobile Facility 2 47 BAECC 1 BBOP 4 MAGIC 12 MC3E 17 SGP 2 STORMVEX 29 TCAP 3 Search News Search Blog News Center All Categories What's this? Social Media Guidance News Center All Categories Features and Releases Facility News Field Notes Blog feed Events feed Employment Research Highlights Data Announcements Education News Archive What's this? Social Media Guidance AGU Presentations Featuring ARM Data Monday, December 13 Presentation Type Session ID and Presentation Title Presenters Time and Location A11H. Atmospheric Sciences General Contributions: Clouds and Aerosol-Cloud Interactions I

467

ARM - Education  

NLE Websites -- All DOE Office Websites (Extended Search)

CenterEducation CenterEducation Media Contact Lynne Roeder lynne-dot-roeder-at-pnnl-dot-gov @armnewsteam Field Notes Blog Topics Field Notes89 AGU 3 AMIE 10 ARM Aerial Facility 2 ARM Mobile Facility 1 6 ARM Mobile Facility 2 47 BAECC 1 BBOP 4 MAGIC 12 MC3E 17 SGP 2 STORMVEX 29 TCAP 3 Search News Search Blog News Center All Categories What's this? Social Media Guidance News Center All Categories Features and Releases Facility News Field Notes Blog feed Events feed Employment Research Highlights Data Announcements Education News Archive What's this? Social Media Guidance Education Education Archive » Junior Rangers Enjoy Science Education at ARM Facility on Cape Cod Apr 25, 2013 School break means vacation, and around Cape Cod, that often means a trip to the seashore. On April 17, families looking for fun and educational outdoor activities spent several hours at Cape Cod National Seashore's Highlands Center for Junior Ranger Day. They were drawn to an event announcement in the park activities newsletter that [...]

468

Nuclear Science Division Annual Report 1995-1996  

E-Print Network (OSTI)

Saladin5, and C.H. Yu6 Nuclear Science Division, LawrenceMoretto, G.J. Wozniak, Nuclear Science Division, LawrenceComment on Probing the Nuclear Liquid-Gas Phase Transition

Authors, Various

2010-01-01T23:59:59.000Z

469

Materials and Chemical Sciences Division annual report 1989  

DOE Green Energy (OSTI)

This report describes research conducted at Lawrence Berkeley Laboratories, programs are discussed in the following topics: materials sciences; chemical sciences; fossil energy; energy storage systems; health and environmental sciences; exploratory research and development funds; and work for others. A total of fifty eight programs are briefly presented. References, figures, and tables are included where appropriate with each program.

Not Available

1990-07-01T23:59:59.000Z

470

Pacific Northwest Laboratory annual report for 1981 to the DOE Office of Energy Research. Part 4. Physical sciences. [Lead abstract  

SciTech Connect

Separate abstracts were prepared for the 13 reports in this 1981 annual report from Battelle Pacific Northwest Laboratory which deals with the physical sciences. (KRM)

Nielsen, J.M.

1982-02-01T23:59:59.000Z

471

Annual Solicitation Application Guidelines | U.S. DOE Office of Science  

Office of Science (SC) Website

Annual Solicitation Annual Solicitation High Energy Physics (HEP) HEP Home About Research Facilities Science Highlights Benefits of HEP Funding Opportunities Closed Funding Opportunity Announcements (FOAs) Closed Lab Announcements Award Search Peer Merit / Review Policies Early Career Research Opportunities in High Energy Physics Graduate Fellows in High Energy Theory Guidelines Comparative Review Annual Solicitation Progress Reports and Final Report Conferences Advisory Committees News & Resources Contact Information High Energy Physics U.S. Department of Energy SC-25/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3624 F: (301) 903-2597 E: sc.hep@science.doe.gov More Information » Guidelines Annual Solicitation Print Text Size: A A A RSS Feeds FeedbackShare Page

472

Environmental Sciences Division annual progress report for period ending September 30, 1982. Environmental Sciences Division Publication No. 2090. [Lead abstract  

SciTech Connect

Separate abstracts were prepared for 12 of the 14 sections of the Environmental Sciences Division annual progress report. The other 2 sections deal with educational activities. The programs discussed deal with advanced fuel energy, toxic substances, environmental impacts of various energy technologies, biomass, low-level radioactive waste management, the global carbon cycle, and aquatic and terrestrial ecology. (KRM)

Not Available

1983-04-01T23:59:59.000Z

473

Annual Planning Summaries: Science (SC) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Assessments and Environmental Impact Statements for 2011 and 2012 within Science (SC). Energy.gov Careers & Internships Guidance & Requirements Contact Us About This Site...

474

Annual  

NLE Websites -- All DOE Office Websites (Extended Search)

19 19 th Annual Triple "E" Seminar Presented by U.S. Department of Energy National Energy Technology Laboratory and Spectroscopy Society of Pittsburgh Thursday, January 20, 2011 8:00 a.m. Registration & Breakfast 8:30 a.m. Opening Remarks/Welcome Michael Nowak, Senior Management & Technical Advisor National Energy Technology Laboratory 8:35 a.m. Overview of Energy Issues Michael Nowak, Senior Management & Technical Advisor National Energy Technology Laboratory 8:45 a.m. Introduction of Presenters McMahan Gray National Energy Technology Laboratory 8:50 a.m. Jane Konrad, Pgh Regional Center for Science Teachers "Green - What Does it Mean" 9:45 a.m. Break 10:00 a.m. John Varine, Spectroscopy Society of Pittsburgh

475

ARM - Facility News Article  

NLE Websites -- All DOE Office Websites (Extended Search)

April 24, 2013 [Education, Facility News] April 24, 2013 [Education, Facility News] A Twist on TwisterTM: ARM Educational Outreach Participates in Community Science Nights Bookmark and Share This week, the U.S. Department of Energy begins its National Science Bowl competition, a nationwide academic competition that tests students' knowledge in all areas of science. Created 22 years ago in 1991, the DOE National Science Bowl strives to encourage students to excel in mathematics and science and to pursue careers in these fields and is an important part of DOE's STEM (science, technology, engineering and math) education efforts today. The ARM Climate Research Facility supports STEM by participating in public science nights and developing climate related lesson plans to share at these event