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1

Research opportunities to improve DSM impact estimates  

Science Conference Proceedings (OSTI)

This report was commissioned by the California Institute for Energy Efficiency (CIEE) as part of its research mission to advance the energy efficiency and productivity of all end-use sectors in California. Our specific goal in this effort has been to identify viable research and development (R D) opportunities that can improve capabilities to determine the energy-use and demand reductions achieved through demand-side management (DSM) programs and measures. We surveyed numerous practitioners in California and elsewhere to identify the major obstacles to effective impact evaluation, drawing on their collective experience. As a separate effort, we have also profiled the status of regulatory practices in leading states with respect to DSM impact evaluation. We have synthesized this information, adding our own perspective and experience to those of our survey-respondent colleagues, to characterize today's state of the art in impact-evaluation practices. This scoping study takes a comprehensive look at the problems and issues involved in DSM impact estimates at the customer-facility or site level. The major portion of our study investigates three broad topic areas of interest to CIEE: Data analysis issues, field-monitoring issues, issues in evaluating DSM measures. Across these three topic areas, we have identified 22 potential R D opportunities, to which we have assigned priority levels. These R D opportunities are listed by topic area and priority.

Misuriello, H.; Hopkins, M.E.F. (Fleming Group, Washington, DC (United States))

1992-03-01T23:59:59.000Z

2

Research opportunities to improve DSM impact estimates  

Science Conference Proceedings (OSTI)

This report was commissioned by the California Institute for Energy Efficiency (CIEE) as part of its research mission to advance the energy efficiency and productivity of all end-use sectors in California. Our specific goal in this effort has been to identify viable research and development (R&D) opportunities that can improve capabilities to determine the energy-use and demand reductions achieved through demand-side management (DSM) programs and measures. We surveyed numerous practitioners in California and elsewhere to identify the major obstacles to effective impact evaluation, drawing on their collective experience. As a separate effort, we have also profiled the status of regulatory practices in leading states with respect to DSM impact evaluation. We have synthesized this information, adding our own perspective and experience to those of our survey-respondent colleagues, to characterize today`s state of the art in impact-evaluation practices. This scoping study takes a comprehensive look at the problems and issues involved in DSM impact estimates at the customer-facility or site level. The major portion of our study investigates three broad topic areas of interest to CIEE: Data analysis issues, field-monitoring issues, issues in evaluating DSM measures. Across these three topic areas, we have identified 22 potential R&D opportunities, to which we have assigned priority levels. These R&D opportunities are listed by topic area and priority.

Misuriello, H.; Hopkins, M.E.F. [Fleming Group, Washington, DC (United States)

1992-03-01T23:59:59.000Z

3

Cost Estimation for Cross-organizational ERP Projects: Research Perspectives  

E-Print Network (OSTI)

Cost Estimation for Cross-organizational ERP Projects: Research Perspectives Maya Daneva, Roel There are many methods for estimating size, effort, schedule and other cost aspects of IS projects, but only one project cost should include. 1. Introduction The integration strategies of today's networked organizations

Wieringa, Roel

4

Global estimation of potential unreported plutonium in thermal research reactors  

SciTech Connect

As of November, 1993, 303 research reactors (research, test, training, prototype, and electricity producing) were operational worldwide; 155 of these were in non-nuclear weapon states. Of these 155 research reactors, 80 are thermal reactors that have a power rating of 1 MW(th) or greater and could be utilized to produce plutonium. A previously published study on the unreported plutonium production of six research reactors indicates that a minimum reactor power of 40 MW (th) is required to make a significant quantity (SQ), 8 kg, of fissile plutonium per year by unreported irradiations. As part of the Global Nuclear Material Control Model effort, we determined an upper bound on the maximum possible quantity of plutonium that could be produced by the 80 thermal research reactors in the non-nuclear weapon states (NNWS). We estimate that in one year a maximum of roughly one quarter of a metric ton (250 kg) of plutonium could be produced in these 80 NNWS thermal research reactors based on their reported power output. We have calculated the quantity of plutonium and the number of years that would be required to produce an SQ of plutonium in the 80 thermal research reactors and aggregated by NNWS. A safeguards approach for multiple thermal research reactors that can produce less than 1 SQ per year should be conducted in association with further developing a safeguards and design information reverification approach for states that have multiple research reactors.

Dreicer, J.S.; Rutherford, D.A.

1996-09-01T23:59:59.000Z

5

Crustal Structure of Southeastern Tanzania.  

E-Print Network (OSTI)

??AbstractThe structure of Jurassic to Neogene coastal basins along the Tanzania passive margin and crustal thickness beneath them have been investigated in this thesis using… (more)

Young, Alysa

2012-01-01T23:59:59.000Z

6

Impact of software resource estimation research on practice: a preliminary report on achievements, synergies, and challenges  

Science Conference Proceedings (OSTI)

This paper is a contribution to the Impact Project in the area of software resource estimation. The objective of the Impact Project has been to analyze the impact of software engineering research investments on software engineering practice. The paper ... Keywords: impact project, software resource estimation

Barry Boehm; Ricardo Valerdi

2011-05-01T23:59:59.000Z

7

Crustal Geophysics and Geochemistry Science Center | Open Energy...  

Open Energy Info (EERE)

Crustal Geophysics and Geochemistry Science Center Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Crustal Geophysics and Geochemistry Science Center...

8

Monthly Crustal Loading Corrections for Satellite Altimetry  

Science Conference Proceedings (OSTI)

Satellite altimeter measurements of sea surface height include a small contribution from vertical motion of the seafloor caused by crustal loading. Loading by ocean tides is routinely allowed for in altimeter data processing. Here, loading by ...

R. D. Ray; S. B. Luthcke; T. van Dam

2013-05-01T23:59:59.000Z

9

The unit cost factors and calculation methods for decommissioning - Cost estimation of nuclear research facilities  

SciTech Connect

Available in abstract form only. Full text of publication follows: The uncertainties of decommissioning costs increase high due to several conditions. Decommissioning cost estimation depends on the complexity of nuclear installations, its site-specific physical and radiological inventories. Therefore, the decommissioning costs of nuclear research facilities must be estimated in accordance with the detailed sub-tasks and resources by the tasks of decommissioning activities. By selecting the classified activities and resources, costs are calculated by the items and then the total costs of all decommissioning activities are reshuffled to match with its usage and objectives. And the decommissioning cost of nuclear research facilities is calculated by applying a unit cost factor method on which classification of decommissioning works fitted with the features and specifications of decommissioning objects and establishment of composition factors are based. Decommissioning costs of nuclear research facilities are composed of labor cost, equipment and materials cost. Of these three categorical costs, the calculation of labor costs are very important because decommissioning activities mainly depend on labor force. Labor costs in decommissioning activities are calculated on the basis of working time consumed in decommissioning objects and works. The working times are figured out of unit cost factors and work difficulty factors. Finally, labor costs are figured out by using these factors as parameters of calculation. The accuracy of decommissioning cost estimation results is much higher compared to the real decommissioning works. (authors)

Kwan-Seong Jeong; Dong-Gyu Lee; Chong-Hun Jung; Kune-Woo Lee [Korea Atomic Energy Research Institute, Deokjin-dong 150, Yuseong-gu, Daejeon 305-353 (Korea, Republic of)

2007-07-01T23:59:59.000Z

10

Quantitative Risk reduction estimation Tool For Control Systems, Suggested Approach and Research Needs  

SciTech Connect

For the past year we have applied a variety of risk assessment technologies to evaluate the risk to critical infrastructure from cyber attacks on control systems. More recently, we identified the need for a stand alone control system risk reduction estimation tool to provide owners and operators of control systems with a more useable, reliable, and credible method for managing the risks from cyber attack. Risk is defined as the probability of a successful attack times the value of the resulting loss, typically measured in lives and dollars. Qualitative and ad hoc techniques for measuring risk do not provide sufficient support for cost benefit analyses associated with cyber security mitigation actions. To address the need for better quantitative risk reduction models we surveyed previous quantitative risk assessment research; evaluated currently available tools; developed new quantitative techniques [17] [18]; implemented a prototype analysis tool to demonstrate how such a tool might be used; used the prototype to test a variety of underlying risk calculational engines (e.g. attack tree, attack graph); and identified technical and research needs. We concluded that significant gaps still exist and difficult research problems remain for quantitatively assessing the risk to control system components and networks, but that a useable quantitative risk reduction estimation tool is not beyond reach.

Miles McQueen; Wayne Boyer; Mark Flynn; Sam Alessi

2006-03-01T23:59:59.000Z

11

EXPERIMENTS, CONCEPTUAL DESIGN, PRELIMINARY COST ESTIMATES AND SCHEDULES FOR AN UNDERGROUND RESEARCH FACILITY  

E-Print Network (OSTI)

Design, Preliminary Cost Estimates and Schedules roroundDESIGN, PRELIMINARY COST ESTIMATES AND SCHEDULES FOR ANSchedule and Cost Estimates Excavation Damage/Sealing

Korbin, G.

2010-01-01T23:59:59.000Z

12

Crustal motion in Indonesia from Global Positioning System measurements  

E-Print Network (OSTI)

Crustal motion in Indonesia from Global Positioning System measurements Y. Bock,1 L. Prawirodirdjo: crustal motion, Indonesia tectonics, GPS, current plate motions, Southeast Asia Citation: Bock, Y., L, Crustal motion in Indonesia from Global Positioning System measurements, J. Geophys. Res., 108(B8), 2367

McCaffrey, Robert

13

Geothermal resource base of the world: a revision of the Electric Power Research Institute's estimate  

DOE Green Energy (OSTI)

Review of the Electric Power Research Institute's (EPRI) method for calculating the geothermal resource base of a country shows that modifications are needed for several of the assumptions used in the calculation. These modifications include: (1) separating geothermal belts into volcanic types with a geothermal gradient of 50{sup 0}C/km and complex types in which 80% of the area has a temperature gradient of 30{sup 0}C/km and 20% has a gradient of 45{sup 0}C/km, (2) using the actual mean annual temperature of a country rather than an assumed 15{sup 0}C average ambient temperature, and (3) making separate calculations for the resource stored in water/brine and that stored in rock. Comparison of this method (Revised EPRI) for calculating a geothermal resource base with other resource base estimates made from a heat flow map of Europe indicates that the technique yields reasonable values. The calculated geothermal resource bases, stored in water and rock to a depth of 5 km, for each country in the world are given. Approximately five times as much energy is stored in rock as is stored in water.

Aldrich, M.J.; Laughlin, A.W.; Gambill, D.T.

1981-04-01T23:59:59.000Z

14

Crustal Structure and tectonics of the Imperial Valley Region California |  

Open Energy Info (EERE)

Crustal Structure and tectonics of the Imperial Valley Region California Crustal Structure and tectonics of the Imperial Valley Region California Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Crustal Structure and tectonics of the Imperial Valley Region California Abstract N/A Authors Gary S. Fruis and William M. Kohler Published Journal U. S. GEOLOGICAL SURVEY, 1984 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Crustal Structure and tectonics of the Imperial Valley Region California Citation Gary S. Fruis,William M. Kohler. 1984. Crustal Structure and tectonics of the Imperial Valley Region California. U. S. GEOLOGICAL SURVEY. N/A(N/A):285-297. Retrieved from "http://en.openei.org/w/index.php?title=Crustal_Structure_and_tectonics_of_the_Imperial_Valley_Region_California&oldid=682730"

15

Simulation methods to estimate design power: an overview for applied research  

E-Print Network (OSTI)

130. Arnold et al. BMC Medical Research Methodology 2011,Arnold et al. BMC Medical Research Methodology 2011, 11:94cited. Arnold et al. BMC Medical Research Methodology 2011,

Arnold, Benjamin F; Hogan, Daniel R; Colford, John M; Hubbard, Alan E

2011-01-01T23:59:59.000Z

16

Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below...  

Open Energy Info (EERE)

Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below the Dixie Valley Geothermal Area, Nevada, Inferred from 3d Magnetotelluric Surveying Jump to: navigation, search...

17

The estimation and management of cost over the life cycle of metallurgical research projects.  

E-Print Network (OSTI)

?? The purpose of this study is to determine whether all costs over the life cycle of metallurgical research projects are included in the initial… (more)

Odendaal, Maria Magdalena

2009-01-01T23:59:59.000Z

18

Estimation of Directional Surface Wave Spectra from a Towed Research Catamaran*  

Science Conference Proceedings (OSTI)

During the High-Resolution Remote Sensing Main Experiment (1993), wave height was estimated from a moving catamaran using pitch-rate and roll-rate sensors, a three-axis accelerometer, and a capacitive wave wire. The wave spectrum in the frequency ...

Kurt A. Hanson; Tetsu Hara; Erik J. Bock; Andrey B. Karachintsev

1997-12-01T23:59:59.000Z

19

Crustal structure of east central Oregon: relation between Newberry Volcano and regional crustal structure  

SciTech Connect

A 180-km-long seismic refraction transect from the eastern High Cascades, across Newberry Volcano, to the eastern High Lava Plains is used to investigate the subvolcanic crustal and upper mantle velocity structure there. Near-surface volcanic flows and sedimentary debris (1.6--4.7 km/s), ranging from 3 to 5 km in thickness, overlie subvolcanic Basin and Range structures. East and west of Newberry Volcano, the subvolcanic basement (5.6 km/s) has been downwarped, producing 5-km-deep basins. The midcrust (8- to 28-km depth) is characterized by velocities ranging from 6.1 to 6.5 km/s and varies laterally in thicknesses. The lowercrust is characterized by an unusually high velocity (about 7.4 km/s), and its geometry mirrors the subvolcanic basement geometry. The Moho is located at a depth of 37 km and represents a transition to an upper mantle velocity of 8.1 km/s. The shallow subsurface (1.2 km) beneath Newberry Volcano is characterized by high-velocity (5.6 km/s, versus 4.1 km/s for the surrounding area) intrusions and appears to be located on a basement high. Beneath the seismic fraction array at Newberry Volcano, an absence of low-velocity anomalies suggests that large silicic magma chambers do not exist in the upper crust, but apparent high attenuation of the seismic wave field may be consistent with either partial melts in small volumes, elevated crustal temperatures, and/or poor geophone-recording site coupling. The east central Oregon velocity structure is nearly identical to that of the northwestern Nevada Basin and Range and the Modoc Plateau of northeastern California, and variations in the deep crustal structure about Newberry Volcano are consistent with tectonism involving crustal underplating, melting, and extension.

Catchings, R.D.; Mooney, W.D.

1988-09-10T23:59:59.000Z

20

Energy extraction from crustal magma bodies  

DOE Green Energy (OSTI)

An open heat exchanger system for extracting thermal energy directly from shallow crustal magma bodies is described. The concept relies on natural properties of magma to create a permeable, solidified region surrounding a borehole drilled into the magma chamber. The region is fractured, possessing large surface area, and is sealed from the overburden. Energy is extracted by circulating a fluid through the system. Thermal stress analysis shows that such a fractured region can be developed at depths up to 10 km. An open heat exchanger experiment conducted in the partial melt zone of Kilauea Iki lava lake demonstrated the validity of this concept. Effective heat transfer surface area an order of magnitude greater than the borehole area was established during a two-day test period. The open heat exchanger concept greatly extends the number of magma systems that can be economically developed to produce energy.

Dunn, J.C.

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "research estimated crustal" 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

The Use of Trace Chemistry to Estimate Seeding Effects in the National Hail Research Experiment  

Science Conference Proceedings (OSTI)

Four convective storms which occurred during the National Hail Research Experiment (NHRE) in northeast Colorado have been studied and confirm the hypothesis formed from an earlier study, that AgI aerosols released from aircraft into storms with ...

J. A. Warburton; G. O. Linkletter; R. Stone

1982-08-01T23:59:59.000Z

22

Hydrological parameter estimations from a conservative tracer test with variable-density effects at the Boise Hydrogeophysical Research Site  

SciTech Connect

Reliable predictions of groundwater flow and solute transport require an estimation of the detailed distribution of the parameters (e.g., hydraulic conductivity, effective porosity) controlling these processes. However, such parameters are difficult to estimate because of the inaccessibility and complexity of the subsurface. In this regard, developments in parameter estimation techniques and investigations of field experiments are still challenging and necessary to improve our understanding and the prediction of hydrological processes. Here we analyze a conservative tracer test conducted at the Boise Hydrogeophysical Research Site in 2001 in a heterogeneous unconfined fluvial aquifer. Some relevant characteristics of this test include: variable-density (sinking) effects because of the injection concentration of the bromide tracer, the relatively small size of the experiment, and the availability of various sources of geophysical and hydrological information. The information contained in this experiment is evaluated through several parameter estimation approaches, including a grid-search-based strategy, stochastic simulation of hydrological property distributions, and deterministic inversion using regularization and pilot-point techniques. Doing this allows us to investigate hydraulic conductivity and effective porosity distributions and to compare the effects of assumptions from several methods and parameterizations. Our results provide new insights into the understanding of variabledensity transport processes and the hydrological relevance of incorporating various sources of information in parameter estimation approaches. Among others, the variable-density effect and the effective porosity distribution, as well as their coupling with the hydraulic conductivity structure, are seen to be significant in the transport process. The results also show that assumed prior information can strongly influence the estimated distributions of hydrological properties.

Dafflon, Baptisite; Barrash, Warren; Cardiff, Michael A.; Johnson, Timothy C.

2011-12-15T23:59:59.000Z

23

Cellular and molecular research to reduce uncertainties in estimates of health effects from low-level radiation  

Science Conference Proceedings (OSTI)

A study was undertaken by five radiation scientists to examine the feasibility of reducing the uncertainties in the estimation of risk due to protracted low doses of ionizing radiation. In addressing the question of feasibility, a review was made by the study group: of the cellular, molecular, and mammalian radiation data that are available; of the way in which altered oncogene properties could be involved in the loss of growth control that culminates in tumorigenesis; and of the progress that had been made in the genetic characterizations of several human and animal neoplasms. On the basis of this analysis, the study group concluded that, at the present time, it is feasible to mount a program of radiation research directed at the mechanism(s) of radiation-induced cancer with special reference to risk of neoplasia due to protracted, low doses of sparsely ionizing radiation. To implement a program of research, a review was made of the methods, techniques, and instruments that would be needed. This review was followed by a survey of the laboratories and institutions where scientific personnel and facilities are known to be available. A research agenda of the principal and broad objectives of the program is also discussed. 489 refs., 21 figs., 14 tabs.

Elkind, M.M.; Bedford, J.; Benjamin, S.A.; Waldren, C.A. (Colorado State Univ., Fort Collins, CO (USA)); Gotchy, R.L. (Science Applications International Corp., McLean, VA (USA))

1990-10-01T23:59:59.000Z

24

INVESTIGATION OF CRUSTAL MOTION IN THE TIEN SHAN USING INSAR  

SciTech Connect

The northern Tien Shan of Central Asia is an area of active mid-continent deformation. Although far from a plate boundary, this region has experienced 5 earthquakes larger than magnitude 7 in the past century and includes one event that may as be as large as Mw 8.0. Previous studies based on GPS measurements indicate on the order of 23 mm/yr of shortening across the entire Tien Shan and up to 15 mm/year in the northern Tien Shan (Figure 1). The seismic moment release rate appears comparable with the geodetic measured slip, at least to first order, suggesting that geodetic rates can be considered a proxy for accumulation rates of stress for seismic hazard estimation. Interferometric synthetic aperture radar may provide a means to make detailed spatial measurements and hence in identifying block boundaries and assisting in seismic hazard. Therefore, we hoped to define block boundaries by direct measurement and by identifying and resolving earthquake slip. Due to political instability in Kyrgzystan, the existing seismic network has not performed as well as required to precisely determine earthquake hypocenters in remote areas and hence InSAR is highly useful. In this paper we present the result of three earthquake studies and show that InSAR is useful for refining locations of teleseismically located earthquakes. ALOS PALSAR data is used to investigate crustal motion in the Tien Shan mountains of Central Asia. As part of the work, considerable software development was undertaken to process PALSAR data. This software has been made freely available. Two damaging earthquakes have been imaged in the Tien Shan and the locations provided by ALOS InSAR have helped to refine seismological velocity models. A third earthquake south of Kyrgyzstan was also imaged. The use of InSAR data and especially L band is therefore very useful in providing groundtruth for earthquake locations.

Mellors, R J

2011-02-25T23:59:59.000Z

25

Lead and strontium isotopic evidence for crustal interaction and  

Open Energy Info (EERE)

Lead and strontium isotopic evidence for crustal interaction and Lead and strontium isotopic evidence for crustal interaction and compositional zonation in the source regions of Pleistocene basaltic and rhyolitic magmas of the Coso volcanic field, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Lead and strontium isotopic evidence for crustal interaction and compositional zonation in the source regions of Pleistocene basaltic and rhyolitic magmas of the Coso volcanic field, California Details Activities (1) Areas (1) Regions (0) Abstract: The isotopic compositions of Pb and Sr in Pleistocene basalt, high-silica rhyolite, and andesitic inclusions in rhyolite of the Coso volcanic field indicate that these rocks were derived from different levels of compositionally zoned magmatic systems. The 2 earliest rhyolites

26

Upper crustal faulting in an obliquely extending orogen, structural control  

Open Energy Info (EERE)

faulting in an obliquely extending orogen, structural control faulting in an obliquely extending orogen, structural control on permeability and production in the Coso Geothermal Field, eastern California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Upper crustal faulting in an obliquely extending orogen, structural control on permeability and production in the Coso Geothermal Field, eastern California Details Activities (1) Areas (1) Regions (0) Abstract: New multifold seismic reflection data from the Coso geothermal field in the central Coso Range, eastern California, image brittle faults and other structures in a zone of localized crustal extension between two major strike-slip faults. The Coso Wash fault, a Quaternary-active normal fault that is a locus of surface geothermal activity, is well-imaged as a

27

Residence times and source ages of deep crustal fluids:  

E-Print Network (OSTI)

We present here 129 I/I and 36 Cl/Cl ratios, together with halogen concentrations in crustal fluids from the continental deep drill site (KTB-VB) in Germany, where fluids were collected from 4000 m depth during a pump test carried out in 2002 and 2003. Compared with seawater, the fluids are enriched by factors of 2, 8 and 40 for Cl) , Br and I, respectively, and show little variation over the test period. The 129 I/I ratios are between 1700 and 4100 · 10)15; the 36 Cl/Cl ratios are below 10 · 10)15. Co-variation between 129 I and 36 Cl concentrations in the fluids indicates that anthropogenic components are absent and that the ratios reflect an addition from crustal sources. The results suggest residence times of 10 Ma or more for the fluids in formations with uranium concentrations of 1 ppm. A minimum age of 30 Ma for the iodine source was derived from the correlation between 129 I and 36 Cl concentrations in the fluids. The results demonstrate that the halogen characteristics of the KTB fluids are very similar to those of other deep crustal fluids and that the combination of 129 I and 36 Cl systematics allows determination of residence times and source ages of such fluids.

Interpretation Of I; U. Fehn; G. T. Snyder

2004-01-01T23:59:59.000Z

28

Upper crustal structure of an obliquely extending orogen, central Coso  

Open Energy Info (EERE)

structure of an obliquely extending orogen, central Coso structure of an obliquely extending orogen, central Coso Range, eastern California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Upper crustal structure of an obliquely extending orogen, central Coso Range, eastern California Details Activities (1) Areas (1) Regions (0) Abstract: The Coso Range is an extensional domain in a releasing stepover between major dextral strike-slip faults along the southeastern margin of the Sierra Nevada Microplate. New multifold seismic reflection data from the Coso geothermal field in the central Coso Range image reflectors that resemble suites of structural and magmatic features exposed in many exhumed metamorphic core complexes (MCC). The Coso Wash Fault, a Holocene-active normal fault that is a locus of surface geothermal activity, is imaged as a

29

Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below the Dixie  

Open Energy Info (EERE)

Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below the Dixie Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below the Dixie Valley Geothermal Area, Nevada, Inferred from 3d Magnetotelluric Surveying Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Intersecting Fault Trends and Crustal-Scale Fluid Pathways Below the Dixie Valley Geothermal Area, Nevada, Inferred from 3d Magnetotelluric Surveying Abstract Geothermal systems may occur in zones of structural dilatency which create the crustal plumbing that al-lows concentration of high-temperature fluids from surrounding volumes. While structural orientations of the U.S. Great Basin are dominated visually by the NNE-oriented horst-graben morphology, other alignments are apparent, perhaps principally a NNW-trending grain

30

Variable Crustal Thickness In The Western Great Basin- A Compilation Of Old  

Open Energy Info (EERE)

Variable Crustal Thickness In The Western Great Basin- A Compilation Of Old Variable Crustal Thickness In The Western Great Basin- A Compilation Of Old And New Refraction Data Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Variable Crustal Thickness In The Western Great Basin- A Compilation Of Old And New Refraction Data Details Activities (3) Areas (3) Regions (0) Abstract: Utilizing commercial mine blasts and local earthquakes, as well as a dense array of portable seismographs, we have achieved long-range crustal refraction profiles across northern Nevada and the Sierra Nevada Mountains. In our most recent refraction experiment, the Idaho-Nevada-California (INC) transect, we used a dense spacing of 411 portable seismographs and 4.5-Hz geophones. The instruments were able to record events ranging from large mine blasts to small local earthquakes.

31

Plume-driven plumbing and crustal formation in Iceland Richard M. Allen,1,2  

E-Print Network (OSTI)

Iceland. The low-velocity structure is interpreted as the thermal halo of pipe work which connects element inversions of basalt compositions on Iceland suggest a melt thickness (i.e., crustal thickness

Foulger, G. R.

32

The upper crustal P-wave velocity structure of Newberry volcano, Central Oregon.  

E-Print Network (OSTI)

?? The upper-crustal seismic-velocity structure of Newberry volcano, central Oregon, is imaged using P-wave travel time tomography. The inversion combines a densely-spaced seismic line collected… (more)

Beachly, Matthew William

2011-01-01T23:59:59.000Z

33

The Upper Crustal P-wave Velocity Structure of Newberry Volcano, Central Oregon.  

E-Print Network (OSTI)

??The upper-crustal seismic-velocity structure of Newberry volcano, central Oregon, is imaged using P-wave travel time tomography. The inversion combines a densely-spaced seismic line collected in… (more)

Beachly, Matthew William, 1986-

2011-01-01T23:59:59.000Z

34

Maps of North American crustal stability and geothermal potential  

DOE Green Energy (OSTI)

A three-year program of analysis of crustal movements in North America was planned with the objective of preparing a series of 1 = 5 million scale maps depicting relative stability/instability. The part of the proposal completed during the first year is described; much of this first year's work was preparatory. Three time scales were considered for the data analysis: 1 - 10/sup 2/ yr., 10/sup 4/ yr., and 10/sup 8/ yr. Significant differences in sign and rate were suspected between short and long-term motions and these are now confirmed. The first part of the program is now complete. It consisted of two principal activities: (a) data collection for the short and mid-term scales on a U.S.-wide basis, excluding Alaska and Hawaii (all of this material has been reduced to compatible computer language and is stored on tape ready for further study, analysis and final cartography); (b) map and data analysis of the long-term scale with a completed draft map, applied specifically to the Mid-West and eastern U.S.

Fairbridge, R.W.

1977-01-01T23:59:59.000Z

35

Cooling load estimation methods  

DOE Green Energy (OSTI)

Ongoing research on quantifying the cooling loads in residential buildings, particularly buildings with passive solar heating systems, is described. Correlations are described that permit auxiliary cooling estimates from monthly average insolation and weather data. The objective of the research is to develop a simple analysis method, useful early in design, to estimate the annual cooling energy required of a given building.

McFarland, R.D.

1984-01-01T23:59:59.000Z

36

CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA |  

Open Energy Info (EERE)

CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: CRUSTAL STRESS HETEROGENEITY IN THE VICINITY OF COSO GEOTHERMAL FIELD, CA Details Activities (1) Areas (1) Regions (0) Abstract: Borehole induced structures in image logs of wells from the Coso Geothermal Field (CGF), CA record variation in the azimuth of principal stress. Image logs of these structures from five wells were analyzed to quantify the stress heterogeneity for three geologically distinct locations: two wells within the CGF (one in an actively produced volume), two on the margin of the CGF and outside the production area, and a control well several tens of kilometers south of the CGF. Average directions of

37

Crustal thinning between the Ethiopian and East African Plateaus from modeling Rayleigh wave dispersion  

Science Conference Proceedings (OSTI)

The East African and Ethiopian Plateaus have long been recognized to be part of a much larger topographic anomaly on the African Plate called the African Superswell. One of the few places within the African Superswell that exhibit elevations of less than 1 km is southeastern Sudan and northern Kenya, an area containing both Mesozoic and Cenozoic rift basins. Crustal structure and uppermost mantle velocities are investigated in this area by modeling Rayleigh wave dispersion. Modeling results indicate an average crustal thickness of 25 {+-} 5 km, some 10-15 km thinner than the crust beneath the adjacent East African and Ethiopian Plateaus. The low elevations can therefore be readily attributed to an isostatic response from crustal thinning. Low Sn velocities of 4.1-4.3 km/s also characterize this region.

Benoit, M H; Nyblade, A A; Pasyanos, M E

2006-01-17T23:59:59.000Z

38

A Calorimetric Jet Engine Technique for Estimating the Condensed Water Mixing Ratio in Cumulus Clouds for Cloud Physical and Weather Modification Research  

Science Conference Proceedings (OSTI)

A technique has been developed for deriving estimates of condensed water mixing ratio in cumulus clouds from measurements of potential temperature in the air in the compressor of a jet engine. Condensate that enters the engine at low temperatures ...

Griffith Morgan; Mark Schormann; Erika Botha; Graeme K. Mather

2000-11-01T23:59:59.000Z

39

Shallow-crustal magma zones in and south of Long Valley, California: Final report for the period 1 Sept 1986 to 30 April 1988  

DOE Green Energy (OSTI)

This report summarizes our investigations of seismic data from the Long Valley caldera region based mainly on data obtained from the USGS-Doe seismic network. During the period several thousands of earthquakes were recorded and located, including the extensive aftershock sequence of the July 1986 Chalfant Valley. This contract has provided partial operating support for this network, including the establishment of the first permanently-recording wideband digital station in the Mammoth Lakes region. Results presented here unclude five manuscripts involving various aspects of the research. These manuscripts cover: (1) a general description of unusual seismic phase near Mammoth Lakes and their possible use in the delineation of shallow-crustal anomalous bodies, (2) a paper which pinpoints the location of a shallow-crustal anomaly about 6 km deep and 2 to 3 km in lateral near the south end of Hilton Creek fault, (3) the documentation of a strong lateral structural change in the vicinity of Inyo Craters, and (4) papers contributing to knowledge of the tectonics of the Mammoth Lakes area.

Peppin, W.A.

1988-04-25T23:59:59.000Z

40

Imaging the Coso geothermal area crustal structure with an array of  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Imaging the Coso geothermal area crustal structure with an array of high-density mini-arrays Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Imaging the Coso geothermal area crustal structure with an array of high-density mini-arrays Details Activities (1) Areas (1) Regions (0) Abstract: Advances in passive seismic data collecting and processing have produced higher resolution images of the crust and mantle than have been previously obtainable. The Earth is appearing to be more heterogeneous than was thought when only rougher scale observations were available. Here we

Note: This page contains sample records for the topic "research estimated crustal" 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

Evaluation of the Research-Version TMPA Rainfall Estimate at Its Finest Spatial and Temporal Scales over the Rome Metropolitan Area  

Science Conference Proceedings (OSTI)

The focus of this study is the evaluation of the research-version Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA) rainfall product at its finest spatial and temporal resolutions (3-hourly and 0.25° × 0.25°) ...

Gabriele Villarini

2010-12-01T23:59:59.000Z

42

Consistency between deep crustal heating of strange stars in superbursters and soft X-ray transients  

E-Print Network (OSTI)

Both superbursters and soft X-ray transients probe the process of deep crustal heating in compact stars. It was recently shown that the transfer of matter from crust to core in a strange star can heat the crust and ignite superbursts provided certain constraints on the strange quark matter equation of state are fulfilled. We derive corresponding constraints on the equation of state for soft X-ray transients assuming their quiescent emission is powered in the same way, and further discuss the time dependence of this heating mechanism in transient systems. We approach this using a simple parametrized model for deep crustal heating in strange stars assuming slow neutrino cooling in the core and blackbody photon emission from the surface.The constraints derived for hot frequently accreting soft X-ray transients are always consistent with those for superbursters. The colder sources are consistent for low values of the quark matter binding energy, heat conductivity and neutrino emissivity. The heating mechanism is very time dependent which may help to explain cold sources with long recurrence times. Thus deep crustal heating in strange stars can provide a consistent explanation for superbursters and soft X-ray transients.

Morten Stejner; Jes Madsen

2006-03-21T23:59:59.000Z

43

A Stochastic Stick - Slip Model Linking Crustal Shear Strength and Earthquake Interevent Times  

E-Print Network (OSTI)

The current understanding of the earthquake interevent times distribution (ITD) is incomplete. The Weibull distribution is often used to model the earthquake ITD. We link the earthquake ITD on single faults with the Earth's crustal shear strength distribution by means of a phenomenological stick - slip model. We obtain Weibull ITD for power-law stress accumulation, i.e., $\\sigma(t) = \\alpha t^{\\beta}$, where $\\beta >0$ for single faults or systems with homogeneous strength statistics. We show that logarithmic stress accumulation leads to the log-Weibull ITD. For the Weibull ITD, we prove that (i) $m= \\beta m_s$, where $m$ and $m_s$ are, respectively, the ITD and crustal shear strength Weibull moduli and (ii) the time scale $\\tau_s = (S_s/\\alpha)^{1/\\beta}$ where $S_s$ is the scale of crustal shear strength. We generalize the ITD model for fault systems. We investigate deviations of the ITD tails from the Weibull due to sampling bias, magnitude selection, and non-homogeneous strength parameters. Assuming the G...

Hristopulos, Dionissios T

2012-01-01T23:59:59.000Z

44

Status of the TOUGH-FLAC simulator and recent applications related to coupled fluid flow and crustal deformations  

SciTech Connect

This paper presents recent advancement in and applications of TOUGH-FLAC, a simulator for multiphase fluid flow and geomechanics. The TOUGH-FLAC simulator links the TOUGH family multiphase fluid and heat transport codes with the commercial FLAC{sup 3D} geomechanical simulator. The most significant new TOUGH-FLAC development in the past few years is a revised architecture, enabling a more rigorous and tight coupling procedure with improved computational efficiency. The applications presented in this paper are related to modeling of crustal deformations caused by deep underground fluid movements and pressure changes as a result of both industrial activities (the In Salah CO{sub 2} Storage Project and the Geysers Geothermal Field) and natural events (the 1960s Matsushiro Earthquake Swarm). Finally, the paper provides some perspectives on the future of TOUGH-FLAC in light of its applicability to practical problems and the need for high-performance computing capabilities for field-scale problems, such as industrial-scale CO{sub 2} storage and enhanced geothermal systems. It is concluded that despite some limitations to fully adapting a commercial code such as FLAC{sup 3D} for some specialized research and computational needs, TOUGH-FLAC is likely to remain a pragmatic simulation approach, with an increasing number of users in both academia and industry.

Rutqvist, J.

2010-06-01T23:59:59.000Z

45

Bureau for Research and Economic Analysis of Development Estimating the Impact of the Hajj: Religion and Tolerance in Islam’s Global Gathering  

E-Print Network (OSTI)

We estimate the impact on pilgrims of performing the Hajj pilgrimage to Mecca. Our method compares successful and unsuccessful applicants in a lottery used by Pakistan to allocate Hajj visas. Pilgrim accounts stress that the Hajj leads to a feeling of unity with fellow Muslims, but outsiders have sometimes feared that this could be accompanied by antipathy toward non-Muslims. We find that participation in the Hajj increases observance of global Islamic practices such as prayer and fasting while decreasing participation in localized practices and beliefs such as the use of amulets and dowry. It increases belief in equality and harmony among ethnic groups and Islamic sects and leads to more favorable attitudes toward women, including greater acceptance of female education and employment. Increased unity within the Islamic world is not accompanied by antipathy toward non-Muslims. Instead, Hajjis show increased belief in peace, and in equality and harmony among adherents of different religions. The evidence suggests that these changes are more a result of exposure to and interaction with Hajjis from around the world, rather than religious instruction

David Clingingsmith; Asim Ijaz Khwaja; Michael Kremer; David Clingingsmith; Asim Ijaz Khwaja; Michael Kremer

2008-01-01T23:59:59.000Z

46

Research Highlight  

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

Continuous Clear-Sky Longwave from Surface Measurements Continuous Clear-Sky Longwave from Surface Measurements Download a printable PDF Submitter: Long, C. N., Pacific Northwest National Laboratory Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Long, CN, and DD Turner. 2008. "A method for continuous estimation of clear-sky downwelling longwave radiative flux developed using ARM surface measurements." Journal of Geophysical Research 113, D18206, doi:10.1029/2008JD009936. Comparison of clear-sky RT model calculations (black) and our estimates (gray) with detected LW effective clear-sky measurements from the ACRF SGP site from 1 March through 31 May 2003, showing that our LW estimates do as well as detailed model calculations in comparison with actual LW

47

Research Highlight  

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

Estimating Fractional Sky Cover from Spectral Measurements Estimating Fractional Sky Cover from Spectral Measurements Download a printable PDF Submitter: Long, C. N., Pacific Northwest National Laboratory Min, Q., State University of New York, Albany Wang, T., State University of New York, Albany Duan, M., Institute of Atmospheric Physics/Chinese Academy of Science Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: Min Q, T Wang, CN Long, and M Duan. 2008. "Estimating fractional sky cover from spectral measurements." Journal of Geophysical Research - Atmospheres, 113, D20208, doi:10.1029/2008JD010278. Retrieved and observed cloud fractions and corresponding TSI cloud imagers on 8 July 2005 at Pt. Reyes. Scatterplot of retrieved cloud fraction from spectral ratio method and SW

48

Cenozoic gravity tectonics in the northern Gulf of Mexico induced by crustal extension. A new interpretation of multichannel seismic data  

E-Print Network (OSTI)

Cenozoic gravity tectonics in the northern Gulf of Mexico induced by crustal extension. A new HUSSON3 Key-words. ­ Gravity tectonics, Cenozoic rifting, Gulf of Mexico, Texas, Northeast Mexico. Abstract. ­ The Gulf of Mexico margin in Texas is one of the most impressive examples of starved passive

Husson, Laurent

49

Research Highlight  

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

Development of a New Method for Estimating Evapotranspiration Using ARM Development of a New Method for Estimating Evapotranspiration Using ARM Measurements Submitter: Li, Z., University of Maryland Area of Research: Surface Properties Working Group(s): Radiative Processes Journal Reference: Wang, K., P. Wang, Z. Li, M. Cribb, and M. Sparrow (2007). A simple method to estimate actual evapotranspiration from a combination of net radiation, vegetation index, and temperature, J. Geophys. Res., 112, D15107, doi:10.1029/2006JD008351. Wang, K., Z. Li, and M. Cribb (2006). Estimation of evaporative fraction from a combination of day and night land surface temperature and NDVI: A new method to determine the Priestley-Taylor parameter. Remote Sensing of Environment, 102, 293-305. Time series of the measured (dot) and predicted ET (line) using equation

50

Monitoring crustal deformation in The Geysers-Clear Lake geothermal area, California  

DOE Green Energy (OSTI)

Geodetic surveys since 1972-1973 reveal significant crustal deformation in The Geysers-Clear Lake region. Resurveys of precise control networks are measuring both vertical and horizontal ground movement, with most of the change continuing in the area of geothermal fluid withdrawal. Preliminary evidence suggests right-lateral horizontal movement on northwest-trending fault systems and vertical and horizontal compression of the deep geothermal reservoir system. A direct correlaton is suggested between ground-surface deformation and subsurface pressure changes in the reservoir system. Although surface changes appear too small to be of environmental concern in The Geysers-Clear Lake region, they indicate hydrodynamic changes in the reservoir of significant import.

Lofgren, B.E.

1978-01-01T23:59:59.000Z

51

Research Highlight  

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

Estimating Cloud and Rainfall Parameters in a Vertical Column Above the Estimating Cloud and Rainfall Parameters in a Vertical Column Above the ACRF SGP Site Download a printable PDF Submitter: Matrosov, S. Y., CIRES/NOAA/ESRL/University of Colorado Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: N/A An example of MMCR (a) and WACR (b) ARM radar measurements of a stratiform precipitating event and the corresponding estimates of mean rain rate (c) and cloud IWP and LWP (d). A comprehensive characterization of all hydrometeors in the vertical column is an important task, which is crucial for model parameterization and validation purposes. For many years, the remote sensing efforts within the Atmospheric Radiation Measurement (ARM) Program were focused primarily on either non-precipitating or only weakly-precipitating (e.g., drizzling)

52

Research Highlight  

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

Estimating the Ice Crystal Enhancement Factor in the Tropics Estimating the Ice Crystal Enhancement Factor in the Tropics Download a printable PDF Submitter: Zeng, X., NASA - Goddard Space Flight Center Tao, W., NASA - Goddard Space Flight Center Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Zeng X, W Tao, T Matsui, S Xie, S Lang, M Zhang, DO Starr, and X Li. 2011. "Estimating the ice crystal enhancement factor in the tropics." Journal of the Atmospheric Sciences, 68(7), doi:10.1175/2011JAS3550.1. Figure 1. Twenty-day mean vertical profiles of IWC from the ARM-SGP observations and the three simulations using low, moderate, and high ice crystal concentrations, respectively. Figure 2. Eight-day mean vertical profiles of IWC from the TWP-ICE

53

Arsenic Health Research Synthesis  

Science Conference Proceedings (OSTI)

This report summarizes EPRI-sponsored arsenic health research results to date, examines implications of these results for reducing uncertainties in arsenic cancer risk assessment, and identifies remaining research needs. The most important contributions of this research toward reducing key uncertainties for arsenic cancer risk estimates include a revised arsenic inhalation unit risk value, support for a nonlinear dose-response relationship, an estimate of bioavailability of arsenic in coal fly ash, deter...

2001-06-12T23:59:59.000Z

54

Operated device estimation framework  

E-Print Network (OSTI)

Protective device estimation is a challenging task because there are numerous protective devices present in a typical distribution system. Among various protective devices, auto-reclosers and fuses are the main overcurrent protection on distribution systems. Operation of a protective device in response to a particular fault condition depends upon the protective device’s operating behavior and coordination of various such protective devices. This thesis presents the design and implementation of a protective device estimation algorithm which helps in identifying which protective devices have operated to clear a short circuit condition. The algorithm uses manufacturer’s device details, power quality data measured from substation monitoring devices and power system event features estimated using existing DFA algorithms. The proposed technique can be used to evaluate coordination of these protective devices and helps in locating a fault in a distribution system feeder. This approach is independent of feeder topology and could be readily used for any distribution system. The effectiveness of this algorithm is verified by simulated and actual test data. Suggestions are included for future research and application by electric utilities.

Rengarajan, Janarthanan

2008-12-01T23:59:59.000Z

55

Research Highlight  

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

First Observation-Based Estimates of Cloud-Free Aerosol Radiative Forcing First Observation-Based Estimates of Cloud-Free Aerosol Radiative Forcing Across China Download a printable PDF Submitter: Li, Z., University of Maryland Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: N/A Mean annual shortwave aerosol radiative forcing (SWARF) averaged across China. Spatial variation of the annual mean SW aerosol radiative forcing. Heavy loading of aerosols in China is widely known, but little is known about their impact on regional radiation budgets, which is often expressed as aerosol radiative forcing (ARF). Depending on their composition, aerosols can absorb a substantial amount of solar radiation, leading to a warming of the atmosphere and cooling of the surface. Many investigations have been made to characterize atmospheric aerosols and their radiative

56

Estimated Global Hydrographic Variability  

Science Conference Proceedings (OSTI)

An estimate is made of the three-dimensional global oceanic temperature and salinity variability, omitting the seasonal cycle, both as a major descriptive element of the ocean circulation and for use in the error estimates of state estimation. ...

Gaël Forget; Carl Wunsch

2007-08-01T23:59:59.000Z

57

Internal Dose Estimates from  

E-Print Network (OSTI)

Appendix F Internal Dose Estimates from NTS Fallout F-1 #12;Radiation Dose to the Population...........................................................................................40 Comparison to dose estimates from global fallout

58

Software Cost Estimation  

E-Print Network (OSTI)

Software cost estimation is the process of predicting the effort required to develop a software system. Many estimation models have been proposed over the last 30 years. This paper provides a general overview of software cost estimation methods including the recent advances in the field. As a number of these models rely on a software size estimate as input, we first provide an overview of common size metrics. We then highlight the cost estimation models that have been proposed and used successfully. Models may be classified into 2 major categories: algorithmic and non-algorithmic. Each has its own strengths and weaknesses. A key factor in selecting a cost estimation model is the accuracy of its estimates. Unfortunately, despite the large body of experience with estimation models, the accuracy of these models is not satisfactory. The paper includes comment on the performance of the estimation models and description of several newer approaches to cost estimation.

Hareton Leung Zhang; Zhang Fan

2002-01-01T23:59:59.000Z

59

Statistics of Sxy Estimates  

Science Conference Proceedings (OSTI)

The statistics of Sxy estimates derived from orthogonal-component measurements are examined. Based on results of Goodman, the probability density function (pdf) for Sxy(f) estimates is derived, and a closed-form solution for arbitrary moments of ...

M. H. Freilich; S. S. Pawka

1987-10-01T23:59:59.000Z

60

Cost Estimation Recommendations  

Science Conference Proceedings (OSTI)

...D.P. Hoult and C.L. Meador, Manufacturing Cost Estimating, Materials Selection and Design, Vol 20, ASM Handbook,

Note: This page contains sample records for the topic "research estimated crustal" 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

Research Highlight  

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

Simulating Mixed-Phase Clouds: Sensitivity to Ice Initiation Simulating Mixed-Phase Clouds: Sensitivity to Ice Initiation Download a printable PDF Submitter: Sednev, I., Lawrence Berkeley National Laboratory Menon, S., Lawrence Berkeley National Laboratory McFarquhar, G., University of Illinois, Urbana Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: I Sednev, S Menon, and G McFarquhar. 2008. "Simulating mixed-phase Arctic stratus clouds: Sensitivity to ice initiation mechanisms." Atmospheric Chemistry and Physics Discussion 8: 11755-11819. The vertical structure and radiative properties of persistent low-level Arctic clouds depend on their microphysics, and thus, estimation of the relative significance of the microphysical processes that occur in these

62

Research Highlight  

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

Modeled Vs. Measured Direct-Normal Solar Irradiance Modeled Vs. Measured Direct-Normal Solar Irradiance Submitter: Schwartz, S. E., Brookhaven National Laboratory Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Halthore R. N., Schwartz, S. E., Michalsky, J. J., Anderson, G. P., Ferrare R. A., Holben B. N., and ten Brink H. M. 1997. "Comparison of Model Estimated and Measured Direct-Normal Solar Irradiance," J. Geophys. Res. 102(D25): 29991-30002 Figure 1 Figure 2 Figure 3 Figure 4 Direct-normal solar irradiance (DNSI), the total energy in the solar spectrum incident in unit time on a unit area at the earth's surface perpendicular to the direction to the Sun, Figure 1, depends only on atmospheric extinction of solar energy without regard to the details of the

63

Research Highlight  

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

Increased Accuracy for Sky Imager Retrievals Increased Accuracy for Sky Imager Retrievals Download a printable PDF Submitter: Long, C. N., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Long CN. 2010. "Correcting for circumsolar and near-horizon errors in sky cover retrievals from sky images." The Open Atmospheric Science Journal, 4, doi:10.2174/1874282301004010045. Long CN, JM Sabburg, J Calbo, and D Pages. 2006. "Retrieving cloud characteristics from ground-based daytime all-sky images." Journal of Atmospheric and Oceanic Technology, 23, 633-652. Sample sky image (left) and corresponding cloud decision image (right) showing an example of the over-estimating problem. White and gray in the

64

Research Highlight  

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

Comparing Global Atmospheric Model Simulations of Tropical Convection Comparing Global Atmospheric Model Simulations of Tropical Convection Download a printable PDF Submitter: Lin, Y., Geophysical Fluid Dynamics Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: N/A Mean profiles of (first column) total precipitation normalized Q1, (second column) convective precipitation normalized convective heating, (third column) stratiform heating, and (fourth column) convective mass flux for the (top) wet, (middle) dry, and (bottom) break period from models and available observational estimates. Dashed lines are fine resolution model results. Note the different x axis scale for the third and fourth columns. An intercomparison of global atmospheric model simulations of tropical

65

Research Highlight  

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

Study Aerosol Humidity Effects Using the ARM Measurements Study Aerosol Humidity Effects Using the ARM Measurements Submitter: Li, Z., University of Maryland Area of Research: Radiation Processes Working Group(s): Aerosol Journal Reference: Jeong, M.-J., Z. Li, E. Andrews, and S.-C. Tsay (2007). Effect of aerosol humidification on the column aerosol optical thickness over the Atmospheric Radiation Measurement Southern Great Plains site, J. Geophys. Res., 112, D10202, doi:10.1029/2006JD007176. (a)-(j) Column-mean aerosol humidification factor as functions of the weighted column mean RH, . The ambient RH at one of the ten level-legs of the In-situ Aerosol Profile (IAP) measurements is replaced with RH equals 99%. Comparison of estimated column R(RH) following six different methods (M1~M6). Gray solid lines and black dashed lines are linear fit and

66

Research Highlight  

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

A Consistency Analysis of ARESE Aircraft Measurements A Consistency Analysis of ARESE Aircraft Measurements Submitter: Li, Z., University of Maryland Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Li, Z., A.P. Trishchenko, H.W. Barker, G.L. Stephens, and P. Partain, 1999: "Analyses of Atmospheric Radiation Measurement (ARM) program's Enhanced Shortwave Experiment (ARESE) multiple data sets for studying cloud absorption," J. of Geophys. Res. 104(D16):19127-19134 Figure 1. Comparisons of TOA albedos inferred from measurements made by TSBR, GOES-8, and SSP. Two sets of GOES-based estimates are shown for an aircraft along the Egrett's flight path: one for an aircraft skimming the cloud tops (dotted lines); and another for one at 14 km (thin solid lines).

67

Crustal Rock Fracture Mechanics for Design and Control of Artificial Subsurface Cracks in Geothermal Energy Extraction Engineering ({Gamma}-Project)  

DOE Green Energy (OSTI)

Recently a significant role of artificial and/or natural cracks in the geothermal reservoir has been demonstrated in the literatures (Abe, H., et al., 1983, Nielson, D.L. and Hullen, J.B., 1983), where the cracks behave as fluid paths and/or heat exchanging surfaces. Until now, however, there are several problems such as a design procedure of hydraulic fracturing, and a quantitative estimate of fluid and heat transfer for reservoir design. In order to develop a design methodology of geothermal reservoir cracks, a special distinguished research project, named as ''{Lambda}-Project'', started at Tohoku University (5 years project, 1983-1988). In this project a basic fracture mechanics model of geothermal reservoir cracks is being demonstrated and its validation is being discussed both theoretically and experimentally. This paper descibes an outline of ''{Lambda}-Project''.

Abe, Hiroyuki; Takahashi, Hideaki

1983-12-15T23:59:59.000Z

68

Impact #309 Potassium-Argon and Argon-Argon Dating of Crustal Rocks and the Problem of Excess Argon  

E-Print Network (OSTI)

According to the assumptions foundational to potassium-argon (K-Ar) and argon-argon (Ar-Ar) dating of rocks, there should not be any daughter radiogenic argon ( 40 Ar * ) in rocks when they form. When measured, all 40 Ar * in a rock is assumed to have been produced by in situ radioactive decay of 40 K within the rock since it formed. However, it is well established that volcanic rocks (e.g. basalt) contain excess 40 Ar * , that is, 40 Ar which cannot be attributed to either atmospheric contamination or in situ radioactive decay of 40 K. 1 This excess 40 Ar * represents primordial Ar carried from source areas in the earth’s mantle by the parent magmas, is inherited by the resultant volcanic rocks, and thus has no age significance. However, are all other rocks in the earth’s crust also susceptible to “contamination” by excess 40 Ar * emanating from the mantle? If so, then the K-Ar and Ar-Ar “dating ” of crustal rocks would be similarly questionable. When muscovite (a common mineral in crustal rocks) is heated to 740°– 860°C under high Ar pressures for periods of 3 to 10.5 hours it absorbs significant quantities of Ar, producing K-Ar “ages ” of up to 5 billion years, and the absorbed Ar is indistinguishable from radiogenic argon ( 40 Ar *). 2 In other experiments muscovite was synthesized from a colloidal gel under similar temperatures and Ar pressures, the resultant muscovite retaining up to 0.5 wt % Ar at 640°C and a vapor pressure of 4,000 atmospheres. 3 This is approximately 2,500 times as much Ar as is found in natural muscovite. Thus under certain conditions Ar can be incorporated into minerals which are supposed to exclude Ar when they crystallize. Patterson et al. envisage noble gases from the mantle (and the atmosphere) migrating and circulating through the crust, so there should be evidence of excess

Andrew A. Snelling T

1999-01-01T23:59:59.000Z

69

Research Opportunities  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. Research Opportunities. ... NRC Postdoctoral Research Associateships Program; NIST NRC Program Description. ...

2013-04-22T23:59:59.000Z

70

Estimating Corn Grain Yields  

E-Print Network (OSTI)

This publication explains how to estimate the grain yield of a corn crop before harvest. An interactive grain yield calculator is included. 6 pages, 3 tables, 1 figure.

Blumenthal, Jurg M.; Thompson, Wayne

2009-06-12T23:59:59.000Z

71

Derived Annual Estimates  

U.S. Energy Information Administration (EIA) Indexed Site

For Methodology Concerning the Derived Estimates Total Consumption of Offsite-Produced Energy for Heat and Power by Industry Group, 1988-1998 Total Energy *** Electricity ***...

72

Derived Annual Estimates  

U.S. Energy Information Administration (EIA) Indexed Site

For Methodology Concerning the Derived Estimates Total Consumption of Offsite-Produced Energy for Heat and Power by Industry Group, 1974-1988 Total Energy *** Electricity ***...

73

Research - CECM  

E-Print Network (OSTI)

Our research is outlined our research proposals below. Samples of completed research may be found under "Sample Papers" and under "Project Highlights" on  ...

74

New approaches to estimation of magnetotelluric parameters  

DOE Green Energy (OSTI)

Fully efficient robust data processing procedures were developed and tested for single station and remote reference magnetotelluric (Mr) data. Substantial progress was made on development, testing and comparison of optimal procedures for single station data. A principal finding of this phase of the research was that the simplest robust procedures can be more heavily biased by noise in the (input) magnetic fields, than standard least squares estimates. To deal with this difficulty we developed a robust processing scheme which combined the regression M-estimate with coherence presorting. This hybrid approach greatly improves impedance estimates, particularly in the low signal-to-noise conditions often encountered in the dead band'' (0.1--0.0 hz). The methods, and the results of comparisons of various single station estimators are described in detail. Progress was made on developing methods for estimating static distortion parameters, and for testing hypotheses about the underlying dimensionality of the geological section.

Egbert, G.D.

1991-01-01T23:59:59.000Z

75

Estimating frequency of change  

Science Conference Proceedings (OSTI)

Many online data sources are updated autonomously and independently. In this article, we make the case for estimating the change frequency of data to improve Web crawlers, Web caches and to help data mining. We first identify various scenarios, where ... Keywords: Change frequency estimation, Poisson process

Junghoo Cho; Hector Garcia-Molina

2003-08-01T23:59:59.000Z

76

Research Opportunities  

Science Conference Proceedings (OSTI)

... industrial or academic partner perform joint research with outcomes ... these collaborations arise spontaneously and the researchers jointly pursue ...

2013-06-27T23:59:59.000Z

77

PNNL: Research  

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

Full Story Research at PNNL Home Featured Highlights Archive Research Directorates Energy & Environment Fundamental & Computational Sciences National Security Facilities...

78

Guest Researchers  

Science Conference Proceedings (OSTI)

... If confidentiality of cooperative research results are desired a Cooperative Research and Development Agreement (CRADA) may be appropriate. ...

2012-07-06T23:59:59.000Z

79

Faster Phase Estimation  

E-Print Network (OSTI)

We develop several algorithms for performing quantum phase estimation based on basic measurements and classical post-processing. We present a pedagogical review of quantum phase estimation and simulate the algorithm to numerically determine its scaling in circuit depth and width. We show that the use of purely random measurements requires a number of measurements that is optimal up to constant factors, albeit at the cost of exponential classical post-processing; the method can also be used to improve classical signal processing. We then develop a quantum algorithm for phase estimation that yields an asymptotic improvement in runtime, coming within a factor of log* of the minimum number of measurements required while still requiring only minimal classical post-processing. The corresponding quantum circuit requires asymptotically lower depth and width (number of qubits) than quantum phase estimation.

Krysta M. Svore; Matthew B. Hastings; Michael Freedman

2013-04-02T23:59:59.000Z

80

Radiation Stress Estimators  

Science Conference Proceedings (OSTI)

The radiation stresses Sij associated with the propagation of wind-generated waves are principal driving forces for several important surf-zone processes. The accurate estimation of the onshore flux of longshore-directed mean momentum Syx, using ...

S. S. Pawka; D. L. Inman; R. T. Guza

1983-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "research estimated crustal" from the National Library of EnergyBeta (NLEBeta).
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81

State Emissions Estimates  

Gasoline and Diesel Fuel Update (EIA)

Estimates of state energy-related carbon dioxide emissions Estimates of state energy-related carbon dioxide emissions Because energy-related carbon dioxide (CO 2 ) constitutes over 80 percent of total emissions, the state energy-related CO 2 emission levels provide a good indicator of the relative contribution of individual states to total greenhouse gas emissions. The U.S. Energy Information Administration (EIA) emissions estimates at the state level for energy-related CO 2 are based on data contained in the State Energy Data System (SEDS). 1 The state-level emissions estimates are based on energy consumption data for the following fuel categories: three categories of coal (residential/commercial, industrial, and electric power sector); natural gas; and ten petroleum products including-- asphalt and road oil, aviation gasoline, distillate fuel, jet fuel, kerosene, liquefied petroleum gases

82

Evaluation of Uncertainties in Cost Estimations  

E-Print Network (OSTI)

This paper examines uncertainty in several cost estimation methods for large infrastructure projects. In particular the impact and consequences of different unexpected events that have occurred during the construction of various tunnels and aqueducts will be treated. Combined with the cost estimation development, several hypotheses concerning uncertainty prediction and correlation will be verified. First, the basis for researching this topic is described and the methods of estimation and uncertainty prediction are presented. Based upon the results of an extensive investigation into the occurrence of unexpected events, several hypotheses concerning unexpected events and correlations are verified. Other related topics that have been researched are also briefly mentioned. Finally the findings are contemplated in a larger context based upon which the conclusions are presented

Meint Boschloo; Meint Boschloo; Pieter Van Gelder; Han Vrijling; Han Vrijling

2001-01-01T23:59:59.000Z

83

Research Home  

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

Cancer & Radiation Radiochemistry & Instrumentation Genome Dynamics BioenergyGTL Technology Centers Resources Research Research in the Life Sciences Division contributes to...

84

Research Highlight  

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

Effective Diameter in Ice Clouds and Its Application to Terrestrial Radiation Download a printable PDF Submitter: Mitchell, D. L., Desert Research Institute Area of Research:...

85

Research Facilities  

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

FLEX lab image, windows testing lab, scientist inside a lab, Research Facilities EETD maintains advanced research and test facilities for buildings, energy technologies, air...

86

Research Highlight  

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

Research Highlights Summaries Modeling the Sensitivity of Convection to Tropospheric Humidity Download a printable PDF Submitter: Del Genio, A. D., NASA Area of Research: General...

87

Research Library  

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

LANL Research Library: delivering essential knowledge services for national security sciences since 1947 About the Research Library The Basics Mission We deliver agile, responsive...

88

Research Gallery  

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

Research Gallery Research Gallery Inside the Museum Exhibitions Norris Bradbury Museum Lobby Defense Gallery Research Gallery History Gallery TechLab Virtual Exhibits invisible utility element Research Gallery Science serving society The Laboratory conducts leading-edge research in many areas of science and technology to help solve national problems related to energy, the environment, infrastructure, and health. Basic research conducted here enhances national defense and economic security. Exhibits you'll find in this gallery: Understanding Radiation LANSCE: Los Alamos Neutron Science Center Space Science Research Viewspace Environmental Monitoring and Research Nanotechnology: The Science of the Small Algae to Biofuels: Squeezing Power from Pond Scum Living with Wildfire: A Shared Community Experience

89

REQUESTS FOR RETIREMENT ESTIMATE  

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

REQUEST FOR RETIREMENT ANNUITY ESTIMATE REQUEST FOR RETIREMENT ANNUITY ESTIMATE Instructions: Please read and answer the following questions thoroughly to include checking all applicable boxes. Unanswered questions may delay processing. Print and Fax back your request form to 202.586.6395 or drop request to GM-169. The request will be assigned to your servicing retirement specialist. They will confirm receipt of your request. SECTION A Request Submitted _____________________ ______________________ ________________________ _____________________ Name (last, first, middle) Last four SSN Date of Birth ___________________________ _________________________ __________________________ Organization Office Telephone Number Fax Number

90

Iterative phase estimation  

E-Print Network (OSTI)

We give an iterative algorithm for phase estimation of a parameter theta, which is within a logarithmic factor of the Heisenberg limit. Unlike other methods, we do not need any entanglement or an extra rotation gate which can perform arbitrary rotations with almost perfect accuracy: only a single copy of the unitary channel and basic measurements are needed. Simulations show that the algorithm is successful. We also look at iterative phase estimation when depolarizing noise is present. It is seen that the algorithm is still successful provided the number of iterative stages is below a certain threshold.

Caleb J O'Loan

2009-04-22T23:59:59.000Z

91

Agile Research  

E-Print Network (OSTI)

This paper discusses the application of agile software development methods in software-based research environments.

Cunningham, Hamish

2012-01-01T23:59:59.000Z

92

Research Highlights  

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

Highlights Highlights Form Submit a New Research Highlight Sort Highlights Submitter Title Research Area Working Group Submission Date DOE Progress Reports Notable Research Findings for 2001-2006 Biological and Environmental Research Abstracts Database Research Highlights Summaries Research Highlights Members of ARM's science team are major contributors to radiation and cloud research. ARM investigators publish about 150 refereed journal articles per year, and ARM data are used in many studies published by other scientific organizations. These documented research efforts represent tangible evidence of ARM's contribution to advances in almost all areas of atmospheric radiation and cloud research. Below is a selection of summaries highlighting recently-published ARM research. The entire collection of ARM

93

Estimated Cost Description Determination Date:  

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

Title, Location Title, Location Estimated Cost Description Determination Date: 2010 LCLS Undulator 2 is envisioned to be a 0.2 - 2keV FEL x-ray source, capable of delivering x-rays to End Station A (ESA), located in the existing Research Yard at SLAC. It will also be configurable as a non- FEL hard x-ray source capable of delivering a chirped x-ray pulse for single-shot broad-spectrum measurements. The project would entail reconstruction of the electron beam transport to End Station A, construction and installation of a new undulator in the tunnel upstream of ESA and beam dump, and construction and installation of x-ray transport, optics, and diagnostics in ESA. It also includes the construction of an annex to End Station A , providing hutches for experiment stations.

94

Software Cost Estimation and Control  

E-Print Network (OSTI)

this report, provided that the source of such material is fully acknowledged. Additional copies are available free of charge from: Publication Office Institute for Information Technology National Research Council of Canada Ottawa, Ontario, Canada K1A 0R6 Copyright 1994 par Conseil national de recherches du Canada Il est permis de citer de courts extraits et de reproduire des figures ou tableaux du présent rapport, à condition d'en identifier clairement la source. Des exemplaires supplémentaires peuvent être obtenus gratuitement à l'addresse suivante: Bureau des publications Institut de technologie de l'information Conseil national de recherches du Canada Ottawa (Ontario) Canada K1A 0R6 Software Cost Estimation 1 Table of Contents

M. R. Vigder; A.W. Kark

1994-01-01T23:59:59.000Z

95

External Dose Estimates from  

E-Print Network (OSTI)

Appendix E External Dose Estimates from NTS Fallout E-1 #12;External Radiation Exposure as the dependence on fallout time of arrival. The most exposed individuals were outdoor workers; the least exposed was about a factor of 20 less than that from "global fallout" from high- yield weapons tests carried out

96

External Dose Estimates from  

E-Print Network (OSTI)

Appendix G External Dose Estimates from Global Fallout G-1 #12;External Radiation Exposure from the fallout from all of these tests was about 0.7 mSv, about equivalent to 2-3 years of external radiation exposure from natural background. In contrast to the fallout from tests at the Nevada Test site

97

EPA Revises Emissions Estimation Methodology  

U.S. Energy Information Administration (EIA)

The changes to the historical emission estimates are the result of revisions to the data and estimation ... b K.D . Smythe, RAND ... RAND Environmental Science and ...

98

NREL: Biomass Research - Research Staff  

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

Research Staff Research Staff NREL's biomass research staff includes: Management team Technology and research areas Research support areas. Search the NREL staff directory to contact any of the research staff listed below. Management Team The biomass management team is composed of: Thomas Foust, National Bioenergy Center Director Robert Baldwin, Principal Scientist, Thermochemical Conversion Phil Pienkos, Applied Science Principal Group Manager Kim Magrini, Catalysis and Thermochemical Sciences and Engineering R&D Principal Group Manager Jim McMillan, Biochemical Process R&D Principal Group Manager Rich Bain, Principal Engineer, Thermochemical Sciences Mark Davis, Thermochemical Platform Lead Richard Elander, Biochemical Platform Lead Dan Blake, Emeritus Back to Top Technology and Research Areas

99

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. XXX, XXXX, DOI:10.1029/2006JB004763, 2007 Persistent Scatterer InSAR for Crustal Deformation Analysis, with  

E-Print Network (OSTI)

of deformation. The first we model as a contracting pipe-like body, which we interpret to be a crystallizing known to have erupted rhyolite as well as basalt [Geist et al., 1994]. The last known eruption occurred

Segall, Paul

100

Estimating Computational Noise?  

E-Print Network (OSTI)

partment of Energy, under Contract DE-AC02-06CH11357. ... supported by the Office of Advanced Scientific Computing Research, Office of Science, U.S. De-.

Note: This page contains sample records for the topic "research estimated crustal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

New Soil Property Database Improves Oklahoma Mesonet Soil Moisture Estimates  

Science Conference Proceedings (OSTI)

Soil moisture data from the Oklahoma Mesonet are widely used in research efforts spanning many disciplines within Earth Sciences. These soil moisture estimates are derived by translating measurements of matric potential into volumetric water ...

Bethany L. Scott; Tyson E. Ochsner; Bradley G. Illston; Christopher A. Fiebrich; Jeffery B. Basara; Albert J. Sutherland

102

Estimates of Meridional Atmosphere and Ocean Heat Transports  

Science Conference Proceedings (OSTI)

New estimates of the poleward energy transport based on atmospheric reanalyses from the National Centers for Environmental Prediction–National Center for Atmospheric Research (NCEP–NCAR) and the European Centre for Medium-Range Weather Forecasts ...

Kevin E. Trenberth; Julie M. Caron

2001-08-01T23:59:59.000Z

103

Assessment and Enhancement of MERRA Land Surface Hydrology Estimates  

Science Conference Proceedings (OSTI)

The Modern-Era Retrospective Analysis for Research and Applications (MERRA) is a state-of-the-art reanalysis that provides, in addition to atmospheric fields, global estimates of soil moisture, latent heat flux, snow, and runoff for 1979–present. ...

Rolf H. Reichle; Randal D. Koster; Gabriëlle J. M. De Lannoy; Barton A. Forman; Qing Liu; Sarith P. P. Mahanama; Ally Touré

2011-12-01T23:59:59.000Z

104

NPP Estimation for Grasslands  

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

NPP for Grasslands NPP for Grasslands Introduction The Oak Ridge DAAC Net Primary Production (NPP) Database includes field measurements from grassland study sites worldwide. The following brief review and discussion is intended to explain the complexity of NPP estimates derived from grassland measurements. There is no single answer to the question, "What is the productivity of the ecosystem at study site A?"; rather there may be range of estimates of NPP, depending upon what data were actually collected and how these data are processed. Although some of these methods for determining NPP for grasslands may be applicable to other vegetation types (e.g., semi-deserts, tundra, or some crops), methods for forests, in particular, are significantly different. Nevertheless, it should be possible to answer the question, "Is this modelled value of NPP reasonable for this ecosystem type at this location?"

105

A new method for estimating extreme rainfall probabilities  

Science Conference Proceedings (OSTI)

As part of an EPRI-funded research program, the Yankee Atomic Electric Company developed a new method for estimating probabilities of extreme rainfall. It can be used, along with other techniques, to improve the estimation of probable maximum precipitation values for specific basins or regions.

Harper, G.A.; O'Hara, T.F. (Yankee Atomic Electric Company, Bolton, MA (United States)); Morris, D.I. (Electric Power Research Institute, Palo Alto, CA (United States))

1994-02-01T23:59:59.000Z

106

Ris-R-1291(EN) Revised Cost Estimate for the  

E-Print Network (OSTI)

Risø-R-1291(EN) Revised Cost Estimate for the Decommissioning of the Reactor DR 3 Edited by Klaus of the cost estimate for the decommissioning of the research Reactor DR 3 as described in the report Risø Procurement of general equipment and material 17 04 Dismantling activities 18 05 Waste processing and storage

107

Radio link quality estimation in wireless sensor networks: A survey  

Science Conference Proceedings (OSTI)

Radio link quality estimation in Wireless Sensor Networks (WSNs) has a fundamental impact on the network performance and also affects the design of higher-layer protocols. Therefore, for about a decade, it has been attracting a vast array of research ... Keywords: Link quality estimation, link characteristics, low-power links, wireless sensor networks

Nouha Baccour; Anis Koubâa; Luca Mottola; Marco Antonio Zúñiga; Habib Youssef; Carlo Alberto Boano; Mário Alves

2012-09-01T23:59:59.000Z

108

RESEARCH TITLES  

Science Conference Proceedings (OSTI)

... Wilmington 35 Eidgenössische Technische Hochschule, Switzerland 36 Emory University School of Medicine 37 ExxonMobil Research and ...

2001-02-27T23:59:59.000Z

109

Reliability Estimates for Power Supplies  

Science Conference Proceedings (OSTI)

Failure rates for large power supplies at a fusion facility are critical knowledge needed to estimate availability of the facility or to set priorties for repairs and spare components. A study of the "failure to operate on demand" and "failure to continue to operate" failure rates has been performed for the large power supplies at DIII-D, which provide power to the magnet coils, the neutral beam injectors, the electron cyclotron heating systems, and the fast wave systems. When one of the power supplies fails to operate, the research program has to be either temporarily changed or halted. If one of the power supplies for the toroidal or ohmic heating coils fails, the operations have to be suspended or the research is continued at de-rated parameters until a repair is completed. If one of the power supplies used in the auxiliary plasma heating systems fails the research is often temporarily changed until a repair is completed. The power supplies are operated remotely and repairs are only performed when the power supplies are off line, so that failure of a power supply does not cause any risk to personnel. The DIII-D Trouble Report database was used to determine the number of power supply faults (over 1,700 reports), and tokamak annual operations data supplied the number of shots, operating times, and power supply usage for the DIII-D operating campaigns between mid-1987 and 2004. Where possible, these power supply failure rates from DIII-D will be compared to similar work that has been performed for the Joint European Torus equipment. These independent data sets support validation of the fusion-specific failure rate values.

Lee C. Cadwallader; Peter I. Petersen

2005-09-01T23:59:59.000Z

110

Neuroimaging Research  

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

Neuroimaging Research Neuroimaging Research (NIAAA Intramural & NIH) Neuroimaging research at Brookhaven is a prime example of transdisciplinary research where the expertise of chemists, physicists, and biological and medical scientists blend to apply new imaging tools to problems in human health. Brookhaven has a network of complementary brain-imaging tools: PET Positron Emission Tomography (PET) Micro MRI MicroMRI Awake Animal Imaging Awake Animal Imaging Using these imaging tools, human neuroscience research has focused on understanding how the brain effects, and is affected by: obesity and eating disorders ADHD depression Behavioral Pharmacology and Neuroimaging, and Neuropsychoimaging enrich investigations of the relationships between brain chemistry and behavior. Top of Page

111

Mildly Context Sensitive Grammars For Estimating Maximum  

E-Print Network (OSTI)

Introduction The maximum-entropy framework provides great flexibility in specifying what features a model may take into account, making it e#ective for a wide range of natural language processing tasks. But because parameter estimation in this framework involves computations over the whole space of possible labelings, it is unwieldy for the parsing problem, where this space is very large. Researchers have tried several strategies for e#ciently training parsing models in the maximum-entropy framework. Ratnaparkhi's parser (1997) models the probabilities of actions of a pushdown automaton instead of the probabilities of entire parses, but for this reason is susceptible to the label-bias problem (La#erty et al. 2001). Abney (1997) proposes random sampling of the parse space. Johnson et al. (1999) propose using conditional estimation instead of joint estimation. This reduces the space to the possible parses of a single sentence, which is much smaller but can still be unmanageably large f

David Chiang

2003-01-01T23:59:59.000Z

112

Research departments Materials Research Department  

E-Print Network (OSTI)

research reactor and X- radiation from the synchrotron facilities in Hamburg and Grenoble. In this con- nection, work is carried out on develop- ing advanced methods, as well as theory and computer simulation numerical simulation. Nuclear Safety Research and Facilities Department The department carries out research

113

Estimation, Economic methodology  

E-Print Network (OSTI)

In this paper I analyse the main strengths and weaknesses of agent-based computational models. I first describe how agent-based simulations can complement more traditional modelling techniques. Then, I rationalise the main theoretical critiques against the use of simulation, which point to the following problematic areas: (i) interpretation of the simulation dynamics, (ii) estimation of the simulation model, and (iii) generalisation of the results. I show that there exist solutions for all these issues. Along the way, I clarify some confounding differences in terminology between the computer science and the economic literature.

Matteo Richiardi; Laboratorio Riccardo; Revelli Centre; Employment Studies; I’m Indebted Francesco Devicienti; Roberto Leombruni; Bruno Contini For Their

2004-01-01T23:59:59.000Z

114

NETL: News Release - DOE Estimates Future Freshwater Needs to Meet  

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

5, 2006 5, 2006 DOE Estimates Future Freshwater Needs to Meet Thermoelectric Power Demand New Analysis Examines Regional Differences in Freshwater Needs, Provides Baseline for Measuring Research Progress WASHINGTON, DC - In support of an emerging energy-water research program, the U.S. Department of Energy's National Energy Technology Laboratory (NETL) has updated its groundbreaking 2004 study estimating future freshwater requirements for the U.S. thermoelectric generation sector. Bringing a much-needed regional focus, the new report, Estimating Freshwater Needs to Meet Future Thermoelectric Generation Requirements, identifies a dichotomy between national and local freshwater needs and pinpoints where critical water issues could develop. MORE INFO Read the report

115

Utility Savings Estimators | Building Energy Codes Program  

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

the Utility Savings Estimators: Commercial Estimator | Residential Estimator (These *.zip files contain the Microsoft Excel macro-enabled (*.xlsm) estimator files. You will...

116

Development of a right-of-way cost estimation and cost estimate management process framework for highway projects  

E-Print Network (OSTI)

Escalation of right-of-way (ROW) costs have been shown to be a prime contributor to project cost escalation in the highway industry. Two problems contribute to ROW cost escalation: 1) the ROW cost estimation and cost estimate management process generally lacks structure and definition as compared to other areas of cost estimation; and 2) there is a lack of integration and communication between those responsible for ROW cost estimating and those responsible for general project cost estimating. The research for this thesis was preceded by a literature review to establish the basis for the study. Data collection was completed through interviews of seven state highway agencies (SHAs) and two local public agencies (LPAs). The findings of the research are presented in a set of ROW flowcharts which document the steps, inputs, and outputs of the ROW cost estimation and cost estimate management process. Three ROW cost estimates and a cost management process take place throughout project development. An effort was made from the onset of the research to relate the ROW cost estimating and cost estimate management process to the first four project development phases (planning, programming. preliminary design, and final design). There are five flowcharts produced as a result of this research: 1) an agency-level flowchart showing all cost estimates and the interaction of ROW with the project development process; 2) a conceptual ROW cost estimating flowchart which depicts the required steps during planning; 3) a baseline ROW cost estimating flowchart which depicts the required steps during programming; 4) an update ROW cost estimating flowchart which depicts the required steps during preliminary design to include a cost estimate management loop; and 5) a ROW cost management flowchart which depicts the required steps during final design. Although selected SHA contacts provided input following the development of the flowcharts, the flowcharts were only validated to a limited extent due to time and budget constraints. These flowcharts attempt to address the two contributing problems to ROW cost escalation by providing structure to the ROW cost estimation process and by developing the ROW process flowcharts linked to the project development process. Based on the input provided by SHA contacts, the flowcharts appear to have the potential to provide guidance to SHAs in improving the accuracy of ROW cost estimates through addressing these two problems.

Lucas, Matthew Allen

2007-12-01T23:59:59.000Z

117

Research Statement  

E-Print Network (OSTI)

My research is in the area of network control and management, with a research goal of improving the robustness and manageability of networked systems, and contributing to the design of future network architectures. Benefiting from my cross-disciplinary background in electrical engineering, telecommunications, and computer science, I try to bring a comprehensive viewpoint in my contributions to networking research. My vision is to facilitate the design of networks that are scalable, evolvable, and can work smartly with minimal human involvement.

Hammad Iqbal

2009-01-01T23:59:59.000Z

118

Research Highlight  

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

Secondary Organic Aerosol (SOA) and Sulfate Download a printable PDF Submitter: Martin, S. T., Harvard University Area of Research: Aerosol Properties Working Group(s):...

119

Research Highlight  

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

K-Distribution Method for a SW Radiative Transfer Model Submitter: Ackerman, T. P., University of Washington Area of Research: General Circulation and Single Column Models...

120

Research Highlight  

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

Status and Analysis Results: 1998 Submitter: Revercomb, H. E., University of Wisconsin, Madison Area of Research: Radiation Processes Working Group(s): Radiative Processes...

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121

Research Highlight  

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

A., Pacific Northwest National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Life Cycle Journal Reference:...

122

Research Highlight  

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

A., Pacific Northwest National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud-Aerosol-Precipitation Interactions...

123

Operations Research  

E-Print Network (OSTI)

Mar 1, 2005 ... Operations Research. Report 2005-01. On a closedness theorem. Miklós Ujvári. Marc 2005. Eötvös Loránd University of Sciences. Department ...

124

Research Highlight  

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

of Energy (DOE) Atmospheric Radiation Measurement (ARM) Program, U.S. Department of Agriculture (USDA) UV-B Monitoring and Research Program, National Oceanic and Atmospheric...

125

UNIRIB: Research  

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

mission focus of the University Radioactive Ion Beam (UNIRIB) consortium is to perform nuclear physics research, and provide training and education. UNIRIB member universities...

126

PNNL: Research  

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

by PNNL and researchers from the University of Washington and Oregon Health & Science University shows how using a relatively simple method for engineering nanoparticle...

127

PNNL: Research  

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

To achieve higher power levels, researchers now are turning their attention to advanced fuel designs. PNNL is developing a new metal fuel for light water reactors intended...

128

Research Highlight  

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

Small Ice Crystals on Ice Sedimentation Rates in Cirrus Clouds and GCM Simulations Download a printable PDF Submitter: Mitchell, D. L., Desert Research Institute Rasch, P., Pacific...

129

Research Highlight  

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

Predicting Arctic Sea Ice Loss Download a printable PDF Submitter: Liu, X., University of Wyoming Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s):...

130

Research Highlight  

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

Characterizing the Co-Existence of Water and Ice in Arctic Clouds Submitter: McFarquhar, G., University of Illinois, Urbana Area of Research: Cloud DistributionsCharacterizations...

131

Research Highlight  

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

Nailing Down Ice in a Cloud Model Download a printable PDF Submitter: Comstock, J. M., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s):...

132

Research Highlight  

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

On Thin Ice: Retrieval Algorithms for Ice Clouds Examined for Improvements Submitter: Comstock, J. M., Pacific Northwest National Laboratory Area of Research: Cloud Distributions...

133

Research Projects  

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

Beam Physics to simulate a next generation light sources based on x-ray free electron lasers. My research includes: Designing parallel algorithms for numerical optimization....

134

Research Highlight  

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

The Brass Ring of Climate Modeling Download a printable PDF Submitter: Ghan, S. J., Pacific Northwest National Laboratory Area of Research: Aerosol Processes Working Group(s):...

135

Research Highlight  

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

Into Radiative Transfer in Cloudy Conditions Submitter: Min, Q., State University of New York, Albany Area of Research: Cloud DistributionsCharacterizations Working Group(s):...

136

Research Highlight  

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

Altering Cloud Microphysics and Precipitation Submitter: Min, Q., State University of New York, Albany Area of Research: Aerosol Properties Working Group(s): Aerosol Journal...

137

Research Highlight  

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

Pollution + Storm Clouds Warmer Atmosphere Download a printable PDF Submitter: Fan, J., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation...

138

Research Highlight  

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

ARM-Funded Algorithms Lead to Marked Improvements in Global Weather Forecast Model Submitter: Morcrette, J. J., European Centre for Medium-Range Weather Forecasts Area of Research:...

139

Research Highlight  

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

Many Forecast Errors Are Climate Errors Download a printable PDF Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column...

140

PNNL: Research  

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

Cutting Air Pollution Got Boost from Weather Cutting Air Pollution Got Boost from Weather View full sized image New research suggests that China's impressive feat of cutting...

Note: This page contains sample records for the topic "research estimated crustal" from the National Library of EnergyBeta (NLEBeta).
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141

Research Highlight  

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

Black Carbon Aerosols and the Third Polar Ice Cap Submitter: Menon, S., Lawrence Berkeley National Laboratory Area of Research: General Circulation and Single Column Models...

142

Research Highlight  

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

Effects of Relative Humidity on Aerosols-Implications for Climate Submitter: Lacis, A. A., NASA - Goddard Institute for Space Studies Area of Research: Aerosol Properties Working...

143

Research Highlight  

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

Chemical Diffusivity and Viscosity of Secondary Organic Aerosols Download a printable PDF Submitter: Zelenyuk-Imre, A., Pacific Northwest National Laboratory Area of Research:...

144

Research Highlight  

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

A Dance of Aerosols Download a printable PDF Submitter: Song, C., Pacific Northwest National Laboratory Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle...

145

Research Highlight  

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Characterization of Atmospheric Aerosols Using MFRSR Measurements Download a printable PDF Submitter: Alexandrov, M. D., Columbia University Area of Research: Aerosol Properties...

146

Research Highlight  

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Scientists then measured how the particles were distributed in the vapor using a mobility scanner that determined particle sizes. In the other approach, researchers...

147

Research Highlight  

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Contributor to Low-Level Cloud Reflectivity Submitter: Penner, J. E., University of Michigan Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference:...

148

Research Highlight  

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Stratocumulus Clouds Download a printable PDF Submitter: Penner, J. E., University of Michigan Lee, S., University of Michigan Area of Research: Aerosol Properties Working...

149

Research Highlight  

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and validation of a black carbon mixing state resolved three-dimensional model: Aging processes and radiative impact." Journal of Geophysical Research - Atmospheres, ,...

150

Research Highlight  

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Arctic Clouds Download a printable PDF Submitter: Earle, M., Environment Canada Liu, P., Environment Canada Area of Research: Cloud DistributionsCharacterizations...

151

Research Highlight  

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Cloud Boundary Detection and Analysis from Micro Pulse Lidar Submitter: Spinhirne, J., University of Arizona Area of Research: Cloud DistributionsCharacterizations Working...

152

Research Highlight  

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Mexico City Carbon-Containing Particle Composition Simulated Download a printable PDF Submitter: Zaveri, R., Pacific Northwest National Laboratory Area of Research: Radiation...

153

Research Highlight  

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Research Facility sites. For many years now, vertically pointing ARM instruments in Oklahoma, Alaska, and Manus Island in the Pacific Ocean (in Papua New Guinea) have...

154

Estimation of the Mean Field Bias of Radar Rainfall Estimates  

Science Conference Proceedings (OSTI)

In this paper procedures are developed for estimating the mean field bias of radar rainfall estimates. Mean field bias is modeled as a random process that varies not only from storm to storm but also over the course of a storm. State estimates of ...

James A. Smith; Witold F. Krajewski

1991-04-01T23:59:59.000Z

155

Estimating Civilian Owned Firearms  

E-Print Network (OSTI)

Most of the world’s firearms are privately owned. 1 They include improvised craft guns as well as handguns, rifles, shotguns, and machine guns. The legal definition of a civilian firearm varies; some states allow civilian ownership of certain firearms that are restricted to military use in other states. The word civilian is used here to refer to actual possession, not legality. In 2007, the Small Arms Survey estimated the number of civilian firearm ownership worldwide at approximately 650 million weapons out of some 875 then in existence (see Figures 1 and 2). National ownership rates range from a high of 90 firearms per every 100 people in the United States, to one firearm or less for every 100 residents in countries like South Korea and Ghana (see Table 1). With the world’s factories delivering millions of newly manufactured firearms annually, and with far fewer being destroyed, civilian ownership is growing (Small Arms Survey, 2007, p. 39). Poor record-keeping and the near absence of reporting requirements for detailed information complicate assessments of global stockpiles of small arms and light weapons. When it comes to estimating civilian firearm ownership, differences in national gun culture —each country’s unique combination of historic and current sources of supply, laws and attitudes toward firearms ownership—often have distinct effects on the classification, ownership and perception of firearms. In addition, categories of firearm holders may overlap, as some individuals may use their private firearms at work as security guards, in armed groups, or in gangs.

unknown authors

2011-01-01T23:59:59.000Z

156

Operations research  

Science Conference Proceedings (OSTI)

In Evita, Andrew Lloyd Webber and Tim Rice wrote: Politics, the Art of the Possible. To those of us in the operations research community, we postulate: Operations Research, the Science of Better - (i.e. better processes, better systems and better decisions). ...

William P. Pierskalla

2009-01-01T23:59:59.000Z

157

NREL: Wind Research - Research Staff  

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Research Staff Research Staff Here you will find contact information for NREL's research and support staff at the National Wind Technology Center. To learn more about us and our expertise, view our organizational charts and read the staff's biographies. Below is a listing of the research and support staff at the National Wind Technology Center. View organizational charts. Lab Program Manager, Wind and Water Power Program Brian Smith Program Integration, Wind and Water Power Program Elise DeGeorge Albert LiVecchi Dana Scholbrock Teresa Thadison Director, National Wind Technology Center Fort Felker, Center Director Laura Davis Kim Domenico Deputy Center Director, National Wind Technology Center Jim Green, Acting Research Fellow Bob Thresher Chief Engineer Paul Veers Wind Technology Research and Development

158

Empirical Methods of Cost Estimation  

Science Conference Proceedings (OSTI)

...D.P. Hoult and C.L. Meador, Manufacturing Cost Estimating, Materials Selection and Design, Vol 20, ASM Handbook,

159

Optimal estimation with limited measurements  

Science Conference Proceedings (OSTI)

This paper introduces a sequential estimation problem with two decision makers, or agents, who work as members of a team. One of the agents sits at an observation post, and makes sequential observations about the state of an underlying stochastic process ... Keywords: WSNs, limited information, networked control systems, optimal estimation, real-time control, real-time monitoring, recursive estimation, sequential estimation, wireless networks, wireless sensor networks

Orhan C. Imer; Tamer Basar

2010-01-01T23:59:59.000Z

160

Research Highlight  

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

Lord of the Wings: Elevated Particles a Rising Star Lord of the Wings: Elevated Particles a Rising Star Download a printable PDF Submitter: Kassianov, E., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle Journal Reference: Kassianov E, C Flynn, J Redemann, B Schmid, PB Russell, and A Sinyuk. 2012. "Initial assessment of the Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research (4STAR)-based aerosol retrieval: Sensitivity study." Atmosphere, 3, doi:10.3390/atmos3040495. The 4STAR instrument. The 4STAR instrument (inset) is installed through the upper hull of the PNNL G-1 research aircraft, for in-flight sun-tracking and sky light-scanning. Researchers at Pacific Northwest National Laboratory, in collaboration with colleagues at NASA Ames Research Center, developed a next-generation

Note: This page contains sample records for the topic "research estimated crustal" 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

Research Highlight  

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Improved Daytime Precipitable Water Vapor from Vaisala Radiosonde Humidity Improved Daytime Precipitable Water Vapor from Vaisala Radiosonde Humidity Sensors Download a printable PDF Submitter: Cady-Pereira, K. E., Atmospheric and Environmental Research, Inc. Mlawer, E. J., Atmospheric & Environmental Research, Inc. Turner, D. D., National Oceanic and Atmospheric Administration Shephard, M. W., Atmospheric and Environmental Research, Inc. Clough, S. A., Atmospheric and Environmental Research, Inc. Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Radiative Processes Journal Reference: Cady-Pereira, K, M Shephard, E Mlawer, D Turner, S Clough, and T Wagner. 2008. "Improved daytime column-integrated precipitable water vapor from Vaisala radiosonde humidity sensors." Journal of Atmospheric and Oceanic Technology doi: 10.1175/2007JTECHA1027.1.

162

Research projects  

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Yuan » Research projects Yuan » Research projects Research projects Research Interests Scientific computing, domain decomposition methods Linear solvers for sparse matrices Computational plasma physics Grid generation techniques GPU computing Current Research PDSLin: A hybrid linear solver for large-scale highly-indefinite linear systems The Parallel Domain decomposition Schur complement based Linear solver (PDSLin), which implements a hybrid (direct and iterative) linear solver based on a non-overlapping domain decomposition technique called chur complement method, and it has two levels of parallelism: a) to solve independent subdomains in parallel and b) to apply multiple processors per subdomain. In such a framework, load imbalance and excessive communication lead to the performance bottlenecks, and several techniques are developed

163

Basic Research  

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5 5 II Basic Research The Basic Energy Sciences (BES) office within the DOE Office of Science supports the DOE Hydrogen Program by providing basic, fundamental research in those technically challenging areas facing the Program, complementing the applied research and demonstration projects conducted by the Offices of Energy Efficiency and Renewable Energy; Fossil Energy; and Nuclear Engineering, Science and Technology. In May 2005 Secretary of Energy Samuel W. Bodman announced the selection of over $64 million in BES research and development projects aimed at making hydrogen fuel cell vehicles and refueling stations available, practical and affordable for American consumers by 2020. A total of 70 hydrogen research projects were selected to focus on fundamental science and enable

164

AN OVERVIEW OF TOOL FOR RESPONSE ACTION COST ESTIMATING (TRACE)  

Science Conference Proceedings (OSTI)

Tools and techniques that provide improved performance and reduced costs are important to government programs, particularly in current times. An opportunity for improvement was identified for preparation of cost estimates used to support the evaluation of response action alternatives. As a result, CH2M HILL Plateau Remediation Company has developed Tool for Response Action Cost Estimating (TRACE). TRACE is a multi-page Microsoft Excel{reg_sign} workbook developed to introduce efficiencies into the timely and consistent production of cost estimates for response action alternatives. This tool combines costs derived from extensive site-specific runs of commercially available remediation cost models with site-specific and estimator-researched and derived costs, providing the best estimating sources available. TRACE also provides for common quantity and key parameter links across multiple alternatives, maximizing ease of updating estimates and performing sensitivity analyses, and ensuring consistency.

FERRIES SR; KLINK KL; OSTAPKOWICZ B

2012-01-30T23:59:59.000Z

165

ARM Climate Research Facility  

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

Recovery Act Recovery Act Learn about ARM's efforts. The Atmospheric Radiation Measurement (ARM) Climate Research Facility is a U.S. Department of Energy scientific user facility, providing data from strategically located in situ and remote sensing observatories around the world. [ Live Data Displays ] Featured Data 09.19.2013 New ARM Best Estimate Land Product Contains Critical Soil Quantities for Describing Land Properties 09.12.2013 Value-Added Product Estimates Planetary Boundary Layer Height from Radiosondes 08.29.2013 New Data Available for Precipitation Value-Added Product Feature12.30.2013 Pole Position: New Field Campaigns Explore Arctic and Antarctic Atmosphere Pole Position: New Field Campaigns Explore Arctic and Antarctic Atmosphere For the first time, ARM ventures to Antarctica for one of several newly

166

Research Areas  

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

Research Areas Print Research Areas Print Scientists from a wide variety of fields come to the ALS to perform experiements. Listed below are some of the most common research areas covered by ALS beamlines. Below each heading are a few examples of the specific types of topics included in that category. Click on a heading to learn more about that research area at the ALS. Energy Science Photovoltaics, photosynthesis, biofuels, energy storage, combustion, catalysis, carbon capture/sequestration. Bioscience General biology, structural biology. Materials/Condensed Matter Correlated materials, nanomaterials, magnetism, polymers, semiconductors, water, advanced materials. Physics Atomic, molecular, and optical (AMO) physics; accelerator physics. Chemistry Surfaces/interfaces, catalysts, chemical dynamics (gas-phase chemistry), crystallography, physical chemistry.

167

Research Highlight  

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

ARM Program Achieves Milestone in Global Cloud Properties Research ARM Program Achieves Milestone in Global Cloud Properties Research Submitter: Revercomb, H. E., University of Wisconsin, Madison Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Knuteson, R.O., Best, F.A., Dedecker, R.G., Feltz, W.F., Revercomb, H.E., and Tobin, D.C., 2004: "10 Years of AERI Data from the DOE ARM Southern Great Plains Site," In Proceedings from the Fourteenth ARM Science Team Meeting, U.S. Department of Energy,Washington, D.C. Figure 1 Figure 2 From the unassuming farmlands of north-central Oklahoma comes a milestone for the global climate research community. March 2004 marked the 10-year anniversary for an instrument that now holds the prestigious distinction of providing the longest set of continuous atmospheric interferometer data

168

Research Highlight  

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M., University of Colorado Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Morrison H, G de Boer, G Feingold, J Harrington, M Shupe, and...

169

Research Highlight  

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

Del Genio, A. D., NASA Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Del Genio AD, J Wu, and Y Chen. 2012. "Characteristics of...

170

Research Highlight  

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

How to Catch Aerosols in the Act Download a printable PDF Submitter: Wang, M., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life...

171

Research Highlight  

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Ice Nucleation Link to Aerosols for Global Models Download a printable PDF Submitter: DeMott, P. J., Colorado State University Liu, X., University of Wyoming Area of Research:...

172

Advanced Research  

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

05/2007 05/2007 NitrogeN evolutioN aNd CorrosioN MeChaNisMs With oxyCoMbustioN of Coal Description Under a grant from the University Coal Research (UCR) program, Brigham Young University (BYU) is leading a three-year research effort to investigate the physical processes that several common types of coal undergo during oxy-fuel combustion. Specifically, research addresses the mixture of gases emitted from burning, particularly such pollutants as nitrogen oxides (NO X ) and carbon dioxide (CO 2 ), and the potential for corrosion at the various stages of combustion. The UCR program is administered by the Advanced Research Program at the National Energy Technology Laboratory (NETL), under the U.S. Department of Energy's Office of

173

EERE Postdoctoral Research Awards: Research Topics  

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

Topics to someone by E-mail Share EERE Postdoctoral Research Awards: Research Topics on Facebook Tweet about EERE Postdoctoral Research Awards: Research Topics on Twitter Bookmark...

174

EERE Postdoctoral Research Awards: Research Mentors  

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

Mentors to someone by E-mail Share EERE Postdoctoral Research Awards: Research Mentors on Facebook Tweet about EERE Postdoctoral Research Awards: Research Mentors on Twitter...

175

EERE Postdoctoral Research Awards: Research Proposals  

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

Proposals on Twitter Bookmark EERE Postdoctoral Research Awards: Research Proposals on Google Bookmark EERE Postdoctoral Research Awards: Research Proposals on Delicious Rank EERE...

176

Blueberry research launches exciting new California specialty crop  

E-Print Network (OSTI)

2. Estimated highbush blueberry crop, 2004 State Growers whoin spearhead- ing specialty crops research and efforts tonew California specialty crop Manuel Jimenez Francis

Jimenez, Manuel; Carpenter, Francis; Molinar, Richard H.; Wright, Kathryn; Day, Kevin R.

2005-01-01T23:59:59.000Z

177

NETL: News Release - NETL Researchers Receive USGS Awards for...  

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

accurate estimates of the leakage rates at the Deepwater Horizon oil spill in the Gulf of Mexico, three researchers from the National Energy Technology Laboratory (NETL)...

178

Aerosol Best Estimate Value-Added Product  

Science Conference Proceedings (OSTI)

The objective of the Aerosol Best Estimate (AEROSOLBE) value-added product (VAP) is to provide vertical profiles of aerosol extinction, single scatter albedo, asymmetry parameter, and Angstroem exponents for the atmospheric column above the Central Facility at the ARM Southern Great Plains (SGP) site. We expect that AEROSOLBE will provide nearly continuous estimates of aerosol optical properties under a range of conditions (clear, broken clouds, overcast clouds, etc.). The primary requirement of this VAP was to provide an aerosol data set as continuous as possible in both time and height for the Broadband Heating Rate Profile (BBHRP) VAP in order to provide a structure for the comprehensive assessment of our ability to model atmospheric radiative transfer for all conditions. Even though BBHRP has been completed, AEROSOLBE results are very valuable for environmental, atmospheric, and climate research.

Flynn, C; Turner, D; Koontz, A; Chand, D; Sivaraman, C

2012-07-19T23:59:59.000Z

179

State estimation on correlated copies  

E-Print Network (OSTI)

State estimation is usually analyzed in the situation when copies are in a product state, either mixed or pure. We investigate here the concept of state estimation on correlated copies. We analyze state estimation on correlated N qubit states, which are permutationally invariant. Using a correlated state we try to estimate as good as possible the direction of the Bloch vector of a single particle reduced density matrix. We derive the optimal fidelity for all permutation invariant states. We find the optimal state, which yields the highest estimation fidelity among the states with the same reduced density matrix. Interestingly this state is not a product state. We also point out that states produced by optimal universal cloning machines are the worst form the point of view of estimating the reduced density matrix.

Rafal Demkowicz-Dobrzanski

2004-12-20T23:59:59.000Z

180

Research Areas  

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

Areas Areas Research Areas Print Scientists from a wide variety of fields come to the ALS to perform experiements. Listed below are some of the most common research areas covered by ALS beamlines. Below each heading are a few examples of the specific types of topics included in that category. Click on a heading to learn more about that research area at the ALS. Energy Science Photovoltaics, photosynthesis, biofuels, energy storage, combustion, catalysis, carbon capture/sequestration. Bioscience General biology, structural biology. Materials/Condensed Matter Correlated materials, nanomaterials, magnetism, polymers, semiconductors, water, advanced materials. Physics Atomic, molecular, and optical (AMO) physics; accelerator physics. Chemistry Surfaces/interfaces, catalysts, chemical dynamics (gas-phase chemistry), crystallography, physical chemistry.

Note: This page contains sample records for the topic "research estimated crustal" 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.


181

Research Highlight  

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

ARM Measurements Help to Evaluate Radiation Codes Used in Global Modeling ARM Measurements Help to Evaluate Radiation Codes Used in Global Modeling Download a printable PDF Submitter: Oreopoulos, L., NASA Mlawer, E. J., Atmospheric & Environmental Research, Inc. Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Oreopoulos L, E Mlawer, J Delamere, T Shippert, J Cole, B Fomin, M Iacono, Z Jin, J Li, J Manners, P Raisanen, F Rose, Y Zhang, MJ Wilson, and WB Rossow. 2012. "The Continual Intercomparison of Radiation Codes: results from Phase I." Journal of Geophysical Research - Atmospheres, 117, doi:10.1029/2011JD016821. The total error of each participating radiation code for all LW (left) and SW (right) cases in the CIRC intercomparison. The identity of each participating code can be found in the paper; codes built due to ARM

182

Research Highlight  

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

Modified Climate Model Better Replicates Global Rainfall Modified Climate Model Better Replicates Global Rainfall Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Song X, GJ Zhang, and JF Li. 2012. "Evaluation of microphysics parameterization for convective clouds in the NCAR Community Atmosphere Model CAM5." Journal of Climate, 25(24), doi:10.1175/JCLI-D-11-00563.1. Rainfall in the tropics. By improving an existing, sophisticated, global climate model, scientists can now simulate cloud and rainfall more accurately. Supported by the U.S. Department of Energy's Atmospheric System Research program, a research team from the Scripps Institution of Oceanography and

183

Research Highlight  

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

Improving Water Vapor Continuum Absorption and Its Impact on a GCM Improving Water Vapor Continuum Absorption and Its Impact on a GCM Simulation Download a printable PDF Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Mlawer, E. J., Atmospheric & Environmental Research, Inc. Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Turner DD, A Merrelli, D Vimont, and EJ Mlawer. 2012. "Impact of modifying the longwave water vapor continuum absorption model on community Earth system model simulations." Journal of Geophysical Research, 117, D04106, doi:10.1029/2011JD016440. The mean difference profiles (experiment minus control) for clear-sky longwave radiative heating (QRLC); shortwave clear-sky radiative heating (QRSC); the longwave cloud radiative forcing (QRLCF); the precipitation

184

For Researchers  

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

Export Control Export Control Berkeley Lab policy is to comply with all applicable state and federal laws, including those relating to Export Control. Berkeley Lab's Export Control Program is designed to support Berkeley Lab's and the University of California's international activities by ensuring compliance with U.S. export laws and regulations in the context of our fundamental research mission. Much of the Lab's compliance with U.S. export laws and regulations is based on our remaining within the "fundamental research" exception, i.e. performing basic or applied research for which the resulting information is ordinarily published and shared broadly within the scientific community. Do not sign non-disclosure or confidentiality agreements. Contact Parul Jain at 495-2306 or the Tech Transfer Department if you need or are

185

Research Highlight  

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

Chinese Researchers Report Reliable Method for Monitoring Soil Moisture Chinese Researchers Report Reliable Method for Monitoring Soil Moisture Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Surface Properties Working Group(s): Cloud Life Cycle Journal Reference: Sun L, R Sun, XW Li, SL Liang, and RH Zhang. 2012. "Monitoring surface soil moisture status based on remotely sensed surface temperature and vegetation index information." Agricultural and Forest Meteorology, 166, doi:10.1016/j.agrformet.2012.07.015. Shown here is the SGP Central Facility, where the most comprehensive instrument suite is hosted. Moisture trapped in soil provides water necessary for vegetation and crops, but how much of that moisture makes its way into the atmosphere and influences regional meteorology? The poor understanding of the role of soil

186

Research Highlight  

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

Putting the Pieces Together Putting the Pieces Together Download a printable PDF Submitter: Fan, J., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Fan J, S Ghan, M Ovchinnikov, X Liu, P Rasch, and A Korolev. 2011. "Representation of arctic mixed-phase clouds and the Wegener-Bergeron-Findeisen process in climate models: Perspectives from a cloud-resolving study." Journal of Geophysical Research - Atmospheres, 116, D00T07, doi:10.1029/2010JD015375. PNNL's Arctic mixed-phase cloud research was augmented with field observations from the 2008 Indirect and Semi-Direct Aerosol Campaign (ISDAC) in Northern Alaska. Photo courtesy of A. Korolev, Environment Canada. Vertical cross sections of (a) the vertical velocity (the contour lines)

187

Research Highlight  

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

Parameterizing the Ice Fall Speed in Climate Models: Results from TC4 and Parameterizing the Ice Fall Speed in Climate Models: Results from TC4 and ISDAC Download a printable PDF Submitter: Mitchell, D. L., Desert Research Institute Mishra, S., NOAA - Coop. Inst. for Mesoscale Meteorological Studies Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Mitchell DL, S Mishra, and RP Lawson. 2011. "Representing the ice fall speed in climate models: Results from Tropical Composition, Cloud and Climate Coupling (TC4) and the Indirect and Semi-Direct Aerosol Campaign (ISDAC)." Journal of Geophysical Research - Atmospheres, 116, D00T03, doi:10.1029/2010JD015433. Relationship between De and Vm for all tropical cirrus cloud types (solid

188

Research Highlight  

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

Raman Lidar Observations of Aerosol Humidification Near Clouds Raman Lidar Observations of Aerosol Humidification Near Clouds Submitter: Ferrare, R. A., NASA - Langley Research Center Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Ferrare, R., et al., Evaluation of Daytime Measurements of Aerosols and Water Vapor Made by an Operational Raman Lidar over the Southern Great Plains, J. Geophys. Res., 111, D05S08, doi:10.1029/2005JD005836, 2006. Relative humidity profiles derived from the Raman lidar during the ALIVE 2005 field experiment. Aerosol extinction profiles derived from the Raman lidar during the ALIVE 2005 field experiment. Aerosol humidification factor f(RH) from Raman lidar measured profiles of aerosol extinction and relative humidity. Upgrades to the Raman lidar at the ARM Climate Research Facility (ACRF)

189

Research Highlight  

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

Spectral Invariant Behavior of Zenith Radiance Around Cloud Edges Observed Spectral Invariant Behavior of Zenith Radiance Around Cloud Edges Observed by ARM SWS Download a printable PDF Submitter: Marshak, A., NASA - Goddard Space Flight Center Knyazikhin, Y., Boston University Chiu, J., University of Reading Wiscombe, W. J., Brookhaven National Laboratory Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Marshak A, Y Knyazikhin, JC Chiu, and WJ Wiscombe. 2009. "Spectral invariant behavior of zenith radiance around cloud edges observed by ARM SWS." Geophysical Research Letters, 36, L16802, doi:10.1029/2009GL039366. (top) Time-wavelength color contour plot of ARM shortwave spectrometer (SWS) spectra measured from 21:35:24 to 21:40:24 UTC on 18 May 2007 at the ARM Climate Research Facility (ACRF) Southern Great Plains (SGP) site in

190

Research Highlight  

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

Evaluation of a New Mixed-Phase Cloud Microphysics Parameterization with Evaluation of a New Mixed-Phase Cloud Microphysics Parameterization with SCAM, CAPT Forecasts and M-PACE Observations Download a printable PDF Submitter: Liu, X., University of Wyoming Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Liu, X, S Xie, and SJ Ghan. 2007. "Evaluation of a new mixed-Phase cloud microphysics parameterization with the NCAR single column climate model (SCAM) and ARM M-PACE observations." Geophysical Research Letters 34, L23712, doi:10.1029/2007GL031446. Xie, S, J Boyle, SA Klein, X Liu and S Ghan. 2008. "Simulations of arctic mixed-phase clouds in forecasts with CAM3 and AM2 for M-PACE." Journal of Geophysical Research, in press.

191

Research Highlight  

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

ARM Program Research Improves Longwave Radiative Transfer Models ARM Program Research Improves Longwave Radiative Transfer Models Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Radiative Processes Journal Reference: The QME AERI LBLRTM: A closure experiment for downwelling high spectral resolution infrared radiance. D.D. Turner, D.C. Tobin, S.A. Clough, P.D. Brown, R.G. Ellingson, E.J. Mlawer, R.O. Knuteson, H.E. Revercomb, T.R. Shippert, and W.L. Smith. 2004. Journal of Atmospheric Science, 61, 2657-2675. Top panels: Examples of downwelling infrared radiance observed by the AERI for two different clear sky cases with different amounts of water vapor. Bottom panels: Differences between the AERI observations and calculations

192

Applying least squares support vector machines to the airframe wing-box structural design cost estimation  

Science Conference Proceedings (OSTI)

This research used the least squares support vector machines (LS-SVM) method to estimate the project design cost of an airframe wing-box structure. We also compared the estimation performance using back-propagation neural networks (BPN) and statistical ... Keywords: Airframe structure, Back-propagation neural networks, Cost estimation, Least squares support vector machines, Response surface methodology

S. Deng; Tsung-Han Yeh

2010-12-01T23:59:59.000Z

193

Research Focus  

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

Focus Focus Work at FEERC is centered on three interrelated areas of research: fuels, engines, and emis- sions. FEERC scientists study the impacts of fuel properties on advanced combustion processes as well as on emissions and emission control strategies and devices. The range of fuels studied includes gaseous (natural gas) and liquid fuels from conventional and unconventional fossil- based sources, as well as non-petroleum fuels from synthetic and renewable sources. The FEERC conducts research on innovative internal combustion engine technologies and control systems for improved efficiency. Combining novel diagnostic and experimental methods with modeling, the Center's scientists also develop improved understanding of the functions and key mechanisms of emission control devices

194

Research Highlight  

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

Classifying Cloud Phase Classifying Cloud Phase Download a printable PDF Submitter: Shupe, M., University of Colorado Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Shupe, MD. 2007. "A ground-based multisensory cloud phase classifier." Geophysical Research Letters 34, L22809, doi:10.1029/2007GL031008. Observations of (a) lidar backscatter, (b) lidar depolarization ratio, (c) radar reflectivity, (d) radar mean Doppler velocity, (e) radar Doppler spectrum width, (f) microwave radiometer-derived liquid water path, and (g) the resulting multisensor cloud-phase classification mask. Cloud phase identification is a necessary prerequisite to performing cloud property retrievals from remote sensor measurements. Most retrieval

195

A bottom-up engineering estimate of the aggregate heating and cooling loads of the entire U.S. building stock  

E-Print Network (OSTI)

information is useful for estimating the national conservation potentials for DOE's research and market transformation activities in building energy

Huang, Yu Joe; Brodrick, Jim

2000-01-01T23:59:59.000Z

196

Frequency tracking and parameter estimation for robust quantum state estimation  

SciTech Connect

In this paper we consider the problem of tracking the state of a quantum system via a continuous weak measurement. If the system Hamiltonian is known precisely, this merely requires integrating the appropriate stochastic master equation. However, even a small error in the assumed Hamiltonian can render this approach useless. The natural answer to this problem is to include the parameters of the Hamiltonian as part of the estimation problem, and the full Bayesian solution to this task provides a state estimate that is robust against uncertainties. However, this approach requires considerable computational overhead. Here we consider a single qubit in which the Hamiltonian contains a single unknown parameter. We show that classical frequency estimation techniques greatly reduce the computational overhead associated with Bayesian estimation and provide accurate estimates for the qubit frequency.

Ralph, Jason F. [Department of Electrical Engineering and Electronics, University of Liverpool, Brownlow Hill, Liverpool L69 3GJ (United Kingdom); Jacobs, Kurt [Department of Physics, University of Massachusetts at Boston, 100 Morrissey Blvd, Boston, Massachusetts 02125 (United States); Hill, Charles D. [Centre for Quantum Computation and Communication Technology, School of Physics, University of Melbourne, Victoria 3010 (Australia)

2011-11-15T23:59:59.000Z

197

NREL: Photovoltaics Research - Research Staff  

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

Research Staff Research Staff Our silicon group members have backgrounds in physics, chemistry, mathematics, materials science, and electrical engineering. Russell Bauer Howard Branz Sachit Grover Vincenzo LaSalvia Benjamin Lee William Nemeth Matt Page Lorenzo Roybal Pauls Stradins, (Acting Group Manager) Charles Teplin Qi Wang David Young Hao-Chih Yuan Photo of 21 people standing in front of a building with a silver, cylinder-shaped structure on one side. Photo of Pauls Stradins Pauls Stradins Senior Scientist II Group Manager Primary Research Interests High-efficiency silicon photovoltaics: advanced passivation techniques and industrially-relevant processes Interfacing Si cell with other materials for high-efficiency tandem Nanostructured semiconductor materials for photovoltaics: Si quantum

198

Expert judgement in cost estimating: Modelling the reasoning process  

E-Print Network (OSTI)

Expert Judgement (EJ) is used extensively during the generation of cost estimates. Cost estimators have to make numerous assumptions and judgements about what they think a new product will cost. However, the use of EJ is often frowned upon, not well accepted or understood by non-cost estimators within a concurrent engineering environment. Computerised cost models, in many ways, have reduced the need for EJ but by no means have they, or can they, replace it. The cost estimates produced from both algorithmic and non-algorithmic cost models can be widely inaccurate; and, as the work of this paper highlights, require extensive use of judgement in order to produce a meaningful result. Very little research tackles the issues of capturing and integrating EJ and rationale into the cost estimating process. Therefore, this

Christopher Rush; Rajkumar Roy

2001-01-01T23:59:59.000Z

199

Results from shallow research drilling at Inyo Domes, Long Valley Caldera, California and Salton Sea geothermal field, Salton Trough, California  

DOE Green Energy (OSTI)

This report reviews the results from two shallow drilling programs recently completed as part of the United States Department of Energy Continental Scientific Drilling Program. The purpose is to provide a broad overview of the objectives and results of the projects, and to analyze these results in the context of the promise and potential of research drilling in crustal thermal regimes. The Inyo Domes drilling project has involved drilling 4 shallow research holes into the 600-year-old Inyo Domes chain, the youngest rhyolitic event in the coterminous United States and the youngest volcanic event in Long Valley Caldera, California. The purpose of the drilling at Inyo was to understand the thermal, chemical and mechanical behavior of silicic magma as it intrudes the upper crust. This behavior, which involves the response of magma to decompression and cooling, is closely related to both eruptive phenomena and the establishment of hydrothermal circulation. The Salton Sea shallow research drilling project involved drilling 19 shallow research holes into the Salton Sea geothermal field, California. The purpose of this drilling was to bound the thermal anomaly, constrain hydrothermal flow pathways, and assess the thermal budget of the field. Constraints on the thermal budget links the local hydrothermal system to the general processes of crustal rifting in the Salton Trough.

Younker, L.W.; Eichelberger, J.C.; Kasameyer, P.W.; Newmark, R.L.; Vogel, T.A.

1987-09-01T23:59:59.000Z

200

Photonics Research and Development  

SciTech Connect

During the period August 2005 through October 2009, the UNLV Research Foundation (UNLVRF), a non-profit affiliate of the University of Nevada, Las Vegas (UNLV), in collaboration with UNLVâ??s Colleges of Science and Engineering; Boston University (BU); Oak Ridge National Laboratory (ORNL); and Sunlight Direct, LLC, has managed and conducted a diverse and comprehensive research and development program focused on light-emitting diode (LED) technologies that provide significantly improved characteristics for lighting and display applications. This final technical report provides detailed information on the nature of the tasks, the results of the research, and the deliverables. It is estimated that about five percent of the energy used in the nation is for lighting homes, buildings and streets, accounting for some 25 percent of the average homeâ??s electric bill. However, the figure is significantly higher for the commercial sector. About 60 percent of the electricity for businesses is for lighting. Thus replacement of current lighting with solid-state lighting technology has the potential to significantly reduce this nationâ??s energy consumption â?? by some estimates, possibly as high as 20%. The primary objective of this multi-year R&D project has been to develop and advance lighting technologies to improve national energy conversion efficiencies; reduce heat load; and significantly lower the cost of conventional lighting technologies. The UNLVRF and its partners have specifically focused these talents on (1) improving LED technologies; (2) optimizing hybrid solar lighting, a technology which potentially offers the benefits of blending natural with artificial lighting systems, thus improving energy efficiency; and (3) building a comprehensive academic infrastructure within UNLV which concentrates on photonics R&D. Task researchers have reported impressive progress in (1) the development of quantum dot laser emitting diodes (QDLEDs) which will ultimately improve energy efficiency and lower costs for display and lighting applications (UNLV College of Engineering); (2) advancing green LED technology based on the Indium-Gallium-Nitride system (BU), thus improving conversion efficiencies; (3) employing unique state-of-the-art X-ray, electron and optical spectroscopies with microscopic techniques to learn more about the electronic structure of materials and contacts in LED devices (UNLV College of Science); (4) establishing a UNLV Display Lighting Laboratory staffed with a specialized team of academic researchers, students and industrial partners focused on identifying and implementing engineering solutions for lighting display-related problems; and (5) conducting research, development and demonstration for HSL essential to the resolution of technological barriers to commercialization.

Pookpanratana, Sujitra; Shlayan, Neveen; Venkat, Rama; Das, Bisjwajit; Boehm, Bob; Heske, Clemens; Fraser, Donald; Moustakas, Theodore

2010-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "research estimated crustal" 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

Research Highlight  

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Entrainment Rate in Shallow Cumuli: Probabilistic Distribution and Entrainment Rate in Shallow Cumuli: Probabilistic Distribution and Dependence on Dry Air Sources Download a printable PDF Submitter: Liu, Y., Brookhaven National Laboratory Lu, C., Brookhaven National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Lu C, Y Liu, S Niu, and AM Vogelmann. 2012. "Lateral entrainment rate in shallow cumuli: Dependence on dry air sources and probability density functions." Geophysical Research Letters, 39, L20812, doi:10.1029/2012GL053646. Probability density functions (PDFs) of entrainment rate (λ) for different dry air sources in eight cumulus flights. The rate at which cloud engulfs dry air (entrainment rate) has proven to be one of the strongest controls on the climate sensitivity of climate models;

202

Research Highlight  

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Downward Longwave Irradiance Uncertainty Under Arctic Atmospheres: Downward Longwave Irradiance Uncertainty Under Arctic Atmospheres: Measurements and Modeling Submitter: Marty, C., Swiss Federal Institute of Snow and Avalanche Research Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Marty, C., R. Philipona, J. Delamere, E.G. Dutton, J. Michalsky, K. Stamnes, R. Storvold, T. Stoffel, S.A. Clough, and E.J. Mlawr, Downward longwave irradiance uncertainty under arctic atmospheres: Measurements and modeling, J. Geophys. Res., 108(D12), 4358, doi:10.1029/2002JD002937, 2003. IPASRC-II instruments deployed at ARM's Barrow Station. Members of 11 international institutions converged at the Atmospheric Radiation Measurement (ARM) Program's North Slope of Alaska (NSA) site in Barrow, Alaska, to conduct the Second International Pyrgeometer and

203

Research Highlight  

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The Short and the Long of Storms: Tracing a Deep Convective System's Life The Short and the Long of Storms: Tracing a Deep Convective System's Life in the Midlatitude Download a printable PDF Submitter: Feng, Z., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Feng Z, X Dong, B Xi, S McFarlane, A Kennedy, B Lin, and P Minnis. 2012. "Life cycle of midlatitude deep convective systems in a Lagrangian framework." Journal of Geophysical Research - Atmospheres, 117(D23), D23201, doi:10.1029/2012JD018362. The life cycle of a convective system tracked by the automated tracking algorithm in the study domain. Time increases from the top left to the bottom right, and each image represents an hour. The colors represent regions given by the hybrid classification.

204

Research Highlight  

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ARM Measurements Validate New Satellite Multilayer Cloud Remote Sensing ARM Measurements Validate New Satellite Multilayer Cloud Remote Sensing Method Submitter: Minnis, P., NASA - Langley Research Center Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Huang, J., P. Minnis, B. Lin, Y. Yi, T.-F. Fan, S. Sun-Mack, and J. K. Ayers, 2006: Determination of ice water path in ice-over-water cloud systems using combined MODIS and AMSR-E measurements. Geophys. Res. Lett., 33, L21801, 10.1029/2006GL027038. Minnis, P., J. Huang, B. Lin, Y. Yi, R. F. Arduini, T.-F. Fan, J. K. Ayers, and G. G. Mace, 2007: Ice cloud properties in ice-over-water cloud systems using TRMM VIRS and TMI data. J. Geophys. Res., 112, D06206, doi:10.1029/2006JD007626. Figure 1. Comparison of the VISST and MCRS retrievals with simultaneous

205

Research Highlight  

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Precipitation Forecast Improved with a New Convective Triggering Mechanism Precipitation Forecast Improved with a New Convective Triggering Mechanism Download a printable PDF Submitter: Xie, S., Lawrence Livermore National Laboratory Zhang, M., Stony Brook University Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Xie, S, and M Zhang. 2000. "Impact of the convective triggering function on single-column model simulations." Journal of Geophysical Research 105: 14983-14996. Six-hour accumulated precipitation valid at 12 UTC 18 July 2005. (a) Radar Observation, (b) DCAPE, (c) GSM without the DCAPE trigger, and (d) GSM with the DCAPE trigger. Considerable improvement of precipitation forecast is obtained by the GSM with the new trigger compared to the radar observation.

206

Research Highlight  

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Strong Impacts of Vertical Velocity on Cloud Microphysics and Implications Strong Impacts of Vertical Velocity on Cloud Microphysics and Implications for Aerosol Indirect Download a printable PDF Submitter: Liu, Y., Brookhaven National Laboratory Lu, C., Brookhaven National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Lu C, Y Liu, S Niu, and AM Vogelmann. 2012. "Observed impacts of vertical velocity on cloud microphysics and implications for aerosol indirect effects." Geophysical Research Letters, 39, L21808, doi:10.1029/2012GL053599. Joint probability density functions (PDF) of relative dispersion (ε) versus vertical velocity (w) along horizontal aircraft legs for each cumulus flight (date given in legend). The red lines denote weighted least

207

Research Highlight  

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Hemispherical Simulations Show Impact of Aerosols on Cloud Reflectivity Hemispherical Simulations Show Impact of Aerosols on Cloud Reflectivity Submitter: Rotstayn, L., Commonwealth Scientific and Industrial Research Organization Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Rotstayn, L., and Y. Liu, Sensitivity of the First Indirect Aerosol Effect to an Increase in Cloud Droplet Spectral Dispersion with Droplet Number Concentration, Journal of Climate: Vol. 16, No. 21, pp.3476-3481, May 2003. Figure 1. Measurements of the relation between the relative dispersion of the cloud droplet spectrum and the cloud droplet number concentration (N). The lower, middle, and upper curves show the parameterizations used in the LOWER, MIDDLE, and UPPER simulations, respectively. A recent study by DOE Atmospheric Radiation Measurement (ARM) Program

208

Research Highlight  

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Giants in the Sky Giants in the Sky For original submission and image(s), see ARM Research Highlights http://www.arm.gov/science/highlights/ Research Highlight A few large particles in a crowd of tiny ones have often been ignored when calculating the amount of sunlight bounced back into space in clean-sky conditions. Scientists at Pacific Northwest National Laboratory found that these "giant" particles have a larger-than-expected impact on the amount of sunlight reflected away from Earth, by as much as 45 percent. They also showed that particles larger than one micron (0.000039 inch) occur much more frequently than expected, up to 85 percent of the time. "Many routine measurements are unable to sample large particles, thus they may overlook the residence of many 'Gullivers in the country of Lilliput,' said Dr. Evgueni

209

Research Highlight  

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ARM Science Applications of AERI Measurements: 1997 Progress ARM Science Applications of AERI Measurements: 1997 Progress Submitter: Smith, W. L., NASA - Langley Research Center Area of Research: Radiation Processes Working Group(s): Cloud Modeling Journal Reference: N/A Figure 1. Figs. 1a and 1b contain rms differences from 72 radiosondes for AERI retrievals (blue), GOES retrievals (black), and AERI+GOES retrievals (red) for temperature and mixing ratio respectively during the 1997 Water Vapor IOP. A measure of meteorological the variability of the temperature and water vapor is indicated by the green line. Figs. 1c and 1d show the TPW for the same cases from GOES, AERI+GOES, radiosonde, and the ARM SGP CART microwave radiometer and relative percent differences in TPW amounts. Figure 2. Four consecutive radiosonde, GOES, and AERI+GOES comparisons from

210

Research Highlight  

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Weather and Atmospheric Overview During Study of Natural and Urban Weather and Atmospheric Overview During Study of Natural and Urban Emissions (CARES) Download a printable PDF Submitter: Fast, J. ., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Fast JD, WI Gustafson, LK Berg, WJ Shaw, M Pekour, M Shrivastava, JC Barnard, RA Ferrare, CA Hostetler, JA Hair, M Erickson, BT Jobson, B Flowers, MK Dubey, S Springston, RB Pierce, L Dolislager, J Pederson, and RA Zaveri. 2012. "Transport and mixing patterns over central California during the Carbonaceous Aerosol and Radiative Effects Study (CARES)." Atmospheric Chemistry and Physics, 12, 1759-1783. Aircraft sampling flight patterns are shown over central California in this aerial overlay. Researchers collected and analyzed measurements from

211

Research Highlight  

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Micropulse Lidar-Derived Aerosol Optical Depth Climatology at ARM Sites Micropulse Lidar-Derived Aerosol Optical Depth Climatology at ARM Sites Worldwide Download a printable PDF Submitter: Kafle, D. N., University of California, Riverside Coulter, R. L., Argonne National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Kafle DN and RL Coulter. 2013. "Micropulse lidar-derived aerosol optical depth climatology at ARM sites worldwide." Journal of Geophysical Research - Atmospheres, 118(13), 10.1002/jgrd.50536. Vertical profiles of multi-year annually averaged AOD (z) at different ARM sites: SGP, NSA, TWP, GRW, and FKB. Inset plots are the profiles of corresponding relative standard deviation, Srel (z). The corresponding 1-sigma measurement errors are given in horizontal bars.

212

Research Highlight  

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Ice Heating Up Cold Clouds Ice Heating Up Cold Clouds Download a printable PDF Submitter: Ovchinnikov, M., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Ovchinnikov M, A Korolev, and J Fan. 2011. "Effects of ice number concentration on dynamics of a shallow mixed-phase stratiform cloud." Journal of Geophysical Research - Atmospheres, 116, D00T06, doi:10.1029/2011JD015888. The mighty cloud ice crystal appears deceptively delicate but has the power to tip the balance between ice and water in Arctic clouds. This image of an ice crystal was obtained from a Cloud Particle Imager during ISDAC. The imager was mounted on aircraft flying through clouds at a speed of 100 m/s.

213

Research Highlight  

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New Method for Three-Dimensional Imaging of Cirrus Clouds New Method for Three-Dimensional Imaging of Cirrus Clouds Submitter: Liou, K., University of California, Los Angeles Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Liou, K.N, S.C. Ou, Y. Takano, J. Roskovensky, G.G. Mace, K. Sassen, and M. Poellot, 2002: "Remote sensing of three-dimensional inhomogeneous cirrus clouds using satellite and mm-wave cloud radar data," Geophysical Research Letters 29(9): 1360. Figure 1 ARM Data Enables the Development and Verification of a New Method for Three-Dimensional Imaging of Cirrus Clouds to Improve Climate Predictions Cirrus clouds cover about 30% of the Earth's surface. Because ice crystals both reflect sunlight and absorb thermal energy emitted from the earth

214

Research Highlight  

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Critical Role of Cloud Drop Effective Radius >14 Micron Radius in Rain Critical Role of Cloud Drop Effective Radius >14 Micron Radius in Rain Initiation Download a printable PDF Submitter: Rosenfeld, D., The Hebrew University of Jerusalem Wang, H., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Rosenfeld D, H Wang, and PJ Rasch. 2012. "The roles of cloud drop effective radius and LWP in determining rain properties in marine stratocumulus." Journal of Geophysical Research - Atmospheres, 39, doi:10.1029/2012GL052028. The dependence of rain rate on cloud drop effective radius (re) near cloud top. The color scale is for the median value of column maximum rain rate in each joint bin of CWP-re (cloud liquid water path and cloud-top re).

215

Research Highlight  

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The Apparent Bluing of Aerosols Near Clouds The Apparent Bluing of Aerosols Near Clouds Download a printable PDF Submitter: Marshak, A., NASA - Goddard Space Flight Center Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Marshak, A, G Wen, JA Coakley, LA Remer, NG Loeb, and RF Cahalan. 2008. "A simple model of the cloud adjacency effect and the apparent bluing of aerosols near clouds." Journal of Geophysical Research 113, D14S17, doi: 10.1029/2007JD009196. (upper panel) A schematic two-layer model of a broken cloud field and Rayleigh scatterers. (lower panel) An example of the Poisson distribution of broken cloud fields with cloud fraction Ac = 0.3 for a 10 by 10 km area. For a cloud vertical thickness of 1 km, the left lower panel has cloud

216

Research Highlight  

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Improving the Treatment of Radiation in Climate Models Improving the Treatment of Radiation in Climate Models Download a printable PDF Submitter: Delamere, J. S., Tech-X Corporation Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle, Cloud Life Cycle Journal Reference: Delamere JS, SA Clough, VH Payne, EJ Mlawer, DD Turner, and RR Gamache. 2010. "A far-infrared radiative closure study in the Arctic: Application to water vapor." Journal of Geophysical Research - Atmospheres, 115, D17106, 10.1029/2009JD012968. The mean AERI-ER radiances for a select set of cloud-free cases at NSA in 2007 are presented in the top panel. The bottom panel presents mean spectral differences between the measurements and model calculations. The red line demonstrates the differences when using the pre-RHUBC version of

217

Research Highlight  

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Global Dimming and Brightening: an Update Beyond 2000 Global Dimming and Brightening: an Update Beyond 2000 Download a printable PDF Submitter: Long, C. N., Pacific Northwest National Laboratory Wild, M., Institute for Atmospheric and Climate Science - ETH Zurich Truessel, B., Institute for Atmospheric and Climate Science - ETH Zurich Ohmura, A., Swiss Federal Institute of Technology Koenig-Langlo, G., Alfred Wegener Institute Dutton, E. G., NOAA/OAR/ESRL Tsvetkov, A. V., World Radiation Data Centre Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Wild M, B Trüssel, A Ohmura, CN Long, G König-Langlo, EG Dutton, and A Tsvetkov. 2009. "Global dimming and brightening: An update beyond 2000." Journal of Geophysical Research - Atmospheres, 114, D00D13, 10.1029/2008JD011382.

218

Research Highlight  

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Field Experiments to Improve the Treatment of Radiation in the Mid-to-Upper Field Experiments to Improve the Treatment of Radiation in the Mid-to-Upper Troposphere Download a printable PDF Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Mlawer, E. J., Atmospheric & Environmental Research, Inc. Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Turner DD and EJ Mlawer. 2010. "The Radiative Heating in Underexplored Bands Campaigns (RHUBC)." Bulletin of the American Meteorological Society, 91, doi:10.1175/2010BAMS2904.1. (a) Atmospheric transmittance at 1 cm-1 resolution in the far-infrared for three atmospheres that are representative of the ARM SGP site, NSA site, and RHUBC-II site in the Chajnantor plateau (CJC). (b) The transmittance

219

Research Highlight  

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Cloud Susceptibility Measures Potential Cloud Sensitivity to First Aerosol Cloud Susceptibility Measures Potential Cloud Sensitivity to First Aerosol Indirect Effect Download a printable PDF Submitter: Oreopoulos, L., NASA Platnick, S., NASA - Goddard Space Flight Center Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: Platnick, S, and L Oreopoulos. 2008. "Radiative susceptibility of cloudy atmospheres to droplet number perturbations: 1. Theoretical analysis and examples from MODIS." Journal of Geophysical Research doi:10.1029/2007JD009654, in press. Oreopoulos, L., and S. Platnick. 2008. Radiative susceptibility of cloudy atmospheres to droplet number perturbations: 2. Global analysis from MODIS, J. Geophys. Res., doi:10.1029/2007JD009655, in press. Theoretical calculations with a shortwave broadband radiative transfer

220

Research Highlight  

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Probabilistic Approach Useful for Evaluating Cloud System Models Probabilistic Approach Useful for Evaluating Cloud System Models Submitter: Jakob, C., Monash University Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Jakob, C., R. Pincus, C. Hannay, and K.M. Xu (2004). Use of cloud radar observations for model evaluation: A probabilistic approach, J. Geophys. Res., 109, D03202, doi:10.1029/2003JD003473. In evaluating climate models, time and space represent key challenges when extrapolating observations into simulations. Researchers supported by DOE's Atmospheric Radiation Measurement (ARM) Program have explored an alternative method based on "point series data" to arrive at model cloud predictions. Point series data are obtained over time through measurements

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


221

Research Highlight  

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

The Mixing State of Carbonaceous Aerosol Particles in Northern and Southern The Mixing State of Carbonaceous Aerosol Particles in Northern and Southern California Measured During CARES and CalNex Download a printable PDF Submitter: Zaveri, R., Pacific Northwest National Laboratory Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: Cahill JF, K Suski, JH Seinfeld, RA Zaveri, and KA Prather. 2012. "The mixing state of carbonaceous aerosol particles in Northern and Southern California measured during CARES and CalNex 2010." Atmospheric Chemistry and Physics, 12, doi:10.5194/acp-12-10989-2012. The CARES campaign took place in Sacramento in order to sample the city's urban plume. Photo courtesy of Jason Tomlinson. Researchers, including DOE scientists working at Pacific Northwest National

222

Research Highlight  

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Cloud Observations at Niamey During the AMF Deployment Cloud Observations at Niamey During the AMF Deployment Submitter: Kollias, P., McGill University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Kollias, P. and M. A. Miller, 2007: Cloud and Precipitation Observations at Niamey During the 2006 ARM Mobile Facility Deployment. Submitted to Geophysical Research Letters. Daily observed cloud fraction in Niamey during the AMF deployment. The cloud fraction is derived using measurements from the 94-GHz radar, the MPL, and the ceilometer. The vertical resolution is 260 m, and a 5-day temporal filter is applied to the daily cloud fraction profiles. (a) Monthly-averaged cloud and precipitation fraction. The monthly mean and standard deviation of cirrus cloud top (white line), middle cloud tops

223

Research Highlight  

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Cloud-Radiation Effects on Sea Ice Loss Cloud-Radiation Effects on Sea Ice Loss Download a printable PDF Submitter: Stephens, G. L., Colorado State University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Kay, JE, T L'Ecuyer, A Gettelman, G Stephens, and C O'Dell. "The contribution of cloud and radiation anomalies to the 2007 Arctic sea ice extent minimum." To appear in Geophysical Research Letters. Clouds and downwelling radiation 2007-2006 differences (June 15-Sept 15). a. Total cloud fraction differences based on radar and lidar data. b. Downwelling SW radiative flux difference. c. Downwelling LW radiative flux difference. The Western Arctic Ocean is outlined in brown. ARM ground-based radiation observations at Barrow, Alaska.

224

Research Highlight  

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The Surprisingly Large Contribution of Small Marine Clouds to Cloud The Surprisingly Large Contribution of Small Marine Clouds to Cloud Fraction and Reflectance Download a printable PDF Submitter: Oreopoulos, L., NASA Feingold, G., NOAA - Earth System Research Laboratory Koren, I., Weizmann Institute of Science Remer, L., NASA - GSFC, Laboratory for Atmospheres Area of Research: Clouds with Low Optical [Water] Depths (CLOWD) Working Group(s): Cloud Properties Journal Reference: Koren, I, L Oreopoulos, G Feingold, LA Remer, and O Altaratz. 2008. "How small is a small cloud?" Atmospheric Chemistry and Physics Journal, in press Cloud mask for a sparse cumulus cloud field as inferred by using the same threshold at four different spatial resolutions. The upper-left panel is for the original Landsat resolution and the lower-right panel is for a

225

Research Highlight  

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Burning on the Prairies Burning on the Prairies Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Fischer ML, MS Torn, DP Billesbach, G Doyle, B Northup, and SC Biraud. 2012. "Carbon, water, and heat flux responses to experimental burning and drought in a tallgrass prairie." Agricultural and Forest Meteorology, 166, doi:10.1016/j.agrformet.2012.07.011. Pasture burning during the beginning of the experiment at the USDA Grazing Lands Research Laboratory in March 2005. What does it mean for the carbon cycle? The deep drought in the United States that fueled wildfires and damaged crops in 2012 has now continued well into 2013. However, long before the droughts and fires wreaked havoc, a team of

226

Research Highlight  

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Wildfires Lead to More Warming Than Climate Models Predict, a New Mexico Wildfires Lead to More Warming Than Climate Models Predict, a New Mexico Fire Study Reports Download a printable PDF Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: China S, C Mazzoleni, K Gorkowski, AC Aiken, and MK Dubey. 2013. "Morphology and mixing state of individual freshly emitted wildfire carbonaceous particles." Nature Communications, 4, 2122, doi:10.1038/ncomms3122. La Conchas fire, New Mexico Analyzing fresh, carbon-rich aerosols in smoke from the largest wildfire in New Mexico (2011), scientists report large impacts of wildfires on climate. A research study, published last week in Nature Communications, has revealed that smoke from wildfires, or biomass-burning events, contains

227

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Clouds Get in the Way: How Climate Models Calculate the Effects of Clouds Clouds Get in the Way: How Climate Models Calculate the Effects of Clouds on Earth's Warming Download a printable PDF Submitter: Qian, Y., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Qian Y, CN Long, H Wang, JM Comstock, SA McFarlane, and S Xie. 2012. "Evaluation of cloud fraction and its radiative effect simulated by IPCC AR4 global models against ARM surface observations." Atmospheric Chemistry and Physics, 12(4), doi:10.5194/acp-12-1785-2012. Clouds get in the way of the dawn light, perfectly framing the Raman lidar instrument at the ARM Climate Research Facility Southern Great Plains site. This ground-based laser is a remote sensing instrument used for measuring

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Remote Sensing of Cirrus Cloud Vertical Size Profile Using MODIS Data Remote Sensing of Cirrus Cloud Vertical Size Profile Using MODIS Data Download a printable PDF Submitter: Ou, S., University of California, Los Angeles Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Wang X, KN Liou, SS Ou, GG Mace, and M Deng. 2009. "Remote sensing of cirrus cloud vertical size profile using MODIS data." Journal of Geophysical Research - Atmospheres, 114, D09205, doi:10.1029/2008JD011327. (a) MODIS true color composite images for March 6, 2001 at 1736UTC, (b) retrieved Τc; (c) retrieved Dt for selected domain; (d) retrieved Db for selected domain; (e) scatter plot for retrieved Τc versus MODIS Τc for selected domain; (f) scatter plot for retrieved De versus MODIS De for

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Millimeter Wave Scattering from Ice Crystals and Their Aggregates Millimeter Wave Scattering from Ice Crystals and Their Aggregates Download a printable PDF Submitter: Botta, G., Pennsylvania State University Verlinde, J., Pennsylvania State University Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Botta G, K Aydin, J Verlinde, A Avramov, A Ackerman, A Fridlind, M Wolde, and G McFarquhar. 2011. "Millimeter wave scattering from ice crystals and their aggregates: Comparing cloud model simulations with X- and Ka-band radar measurements." Journal of Geophysical Research - Atmospheres, 116, D00T04, doi:10.1029/2011JD015909. Observational data sets are needed to drive and evaluate results from cloud-resolving model (CRM) simulations in order to improve parameterizations of the physical processes. Radar is one of the few

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Remote Sensing of Mineral Dust Using AERI Remote Sensing of Mineral Dust Using AERI Download a printable PDF Submitter: Hansell, R. A., University of California, Los Angeles Area of Research: Radiation Processes Working Group(s): Aerosol Journal Reference: Hansell R, KN Liou, SC Ou, SC Tsay, Q Ji, and JS Reid. 2008. "Remote sensing of mineral dust aerosol using AERI during the UAE2: A modeling and sensitivity study." Journal of Geophysical Research - Atmospheres, 113, D18202, doi:10.1029/2008JD010246. BT sensitivity to dust optical depth at 962 cm-1 with markers denoting locations of AERI subbands 1-17 from left to right. (a) Volz compact hexagon model spectra for four optical depths with best fit AERI spectrum. (b) Same as (a) but for a kaolinite/50% calcium carbonate mixturedust model.

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The Evolution and Distribution of Water Vapor and Microphysical Properties The Evolution and Distribution of Water Vapor and Microphysical Properties in Cirrus Clouds Download a printable PDF Submitter: Comstock, J. M., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud Modeling, Cloud Properties Journal Reference: Comstock JM, R Lin, DO Starr, and P Yang. 2008. "Understanding ice supersaturation, particle growth, and number concentration in cirrus clouds." Journal of Geophysical Research - Atmospheres, 113, D23211, doi:10.1029/2008JD010332. Vertical velocity (Vm) derived from millimeter cloud radar (MMCR) Doppler velocity measurements in cirrus clouds observed over the ACRF SGP site. Cloud model simulations of cirrus clouds using large-scale forcing (left panel) and cloud-scale forcing (right panel).

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Quantifying the Impact of Dust on Ice Generation in Supercooled Stratiform Quantifying the Impact of Dust on Ice Generation in Supercooled Stratiform Clouds Download a printable PDF Submitter: Wang, Z., University of Wyoming Zhang, D., University of Wyoming Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Zhang D, Z Wang, A Heymsfield, J Fan, D Liu, and M Zhao. 2012. "Quantifying the impact of dust on heterogeneous ice generation in midlevel supercooled stratiform clouds." Journal of Geophysical Research - Atmospheres, 39, L18805, doi:10.1029/2012GL052831. An example of dusty MSSC: (a) CALIOP TAB profiles at 532nm; (b) CALIOP depolarization profiles at 532nm; (c) CloudSat CPR radar reflectivity profiles; (d) Identified dust layers and MSSC; (e) Global distribution of

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Wide Angle Imaging Lidar: Active Optical Sensor Technology for Ground-Based Wide Angle Imaging Lidar: Active Optical Sensor Technology for Ground-Based Probing of Dense Clouds Download a printable PDF Submitter: Davis, A. B., Jet Propulsion Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Davis, AB. 2008. "Multiple-scattering lidar from both sides of the clouds: Addressing internal structure." Journal of Geophysical Research 113, D14S10, doi:10.1029/2007JD009666. Figure 1. Lidar observations of a dense cloud. Left: standard (single-scattering/on-beam) lidar. Right: multiple-scattering/off-beam lidar. Note the extreme narrowness of the FOV in the standard case, as is required to restrict as much as possible the signal to a single backscatter. Also note the weak penetration, O(1) MFP, of the two-way

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Testing and Comparing the Modified Anomalous Diffraction Approximation Testing and Comparing the Modified Anomalous Diffraction Approximation Submitter: Mitchell, D. L., Desert Research Institute Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: Mitchell, D.L., A.J. Baran, W.P. Arnott, C. Schmitt, 2006: Testing and comparing the anomalous diffraction approximation. J. Atmos. Sci., 63, 2948-2962. Comparison of MADA and T-matrix with measured Qext. Regions without data were contaminated by water vapor or CO2 absorption. MADA and T-matrix calculations are based on the measured PSD of hexagonal columns having an effective diameter of 14 microns. Comparison of the PSD weighted Qabs predicted by FDTD and MADA for a tunneling efficiency corresponding to aggregates. Cirrus clouds play a large role in the Earth's radiation budget and the way

235

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Vertical Variation of Cloud Droplet Size Using Ship and Space-borne R/S Vertical Variation of Cloud Droplet Size Using Ship and Space-borne R/S Data Download a printable PDF Submitter: Li, Z., University of Maryland Chen, R., University of Maryland Wood, R., University of Washington Chang, F., Science Systems and Applications, Inc. Ferraro, R., NOAA/NESDIS, WWBG Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Chen, R, R Wood, Z Li, R Ferraro, and F Chang. 2008. "Studying the vertical variation of cloud droplet effective radius using ship and space-borne remote sensing data." Journal of Geophysical Research 113, doi:10.1029/2007JD009596. Figure 1. Coincident images of C-band radar reflectivity and MODIS cloud profile at UTC 15:55, Oct. 18, 2001. a) RHB C-band radar reflectivity

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Progress in Understanding Water Vapor's Role in Models Progress in Understanding Water Vapor's Role in Models Submitter: Ackerman, T. P., University of Washington Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: N/A Time-height cross sections of water vapor mixing ratio, which is observed directly by the ARM Raman lidar at 10-min and approximately 100 m resolution, and relative humidity for 29 November through 2 December 2002. The bottom panel shows the comparison of the precipitable water vapor observed by the Raman lidar and the collocated microwave radiometer. The time-height cross sections, as well as the integrated field, show the large variability in water vapor that exists over the ARM Southern Great Plains site. After years of sustained research efforts into the accuracy of atmospheric

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ARM M-PACE Data Used to Evaluate and Improve Arctic Mixed-Phase Clouds ARM M-PACE Data Used to Evaluate and Improve Arctic Mixed-Phase Clouds Simulated in Climate Models Download a printable PDF Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Xie, S, J Boyle, SA Klein, X Liu, and S Ghan. 2008. "Simulations of Arctic mixed-phase clouds in forecasts with CAM3 and AM2 for M-PACE." Journal of Geophysical Research 113, D04211, doi:10.1029/2007JD009225. Time-height cross sections of active remote sensing cloud layer (ARSCL) cloud frequency (a) and modeled cloud fraction (b) CAM3, (c) AM2, and (d) CAM3LIU at Barrow during M-PACE. The unit is %. Liquid fraction as a function of cloud height. (a) UND citation data, (b)

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How Aerosols Affect Cloud Properties in Arctic Mixed-Phase Stratocumulus How Aerosols Affect Cloud Properties in Arctic Mixed-Phase Stratocumulus Download a printable PDF Submitter: McFarquhar, G., University of Illinois, Urbana Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Jackson RC, GM McFarquhar, AV Korolev, ME Earle, PS Liu, RP Lawson, S Brooks, M Wolde, A Laskin, and M Freer. 2012. "The dependence of ice microphysics on aerosol concentration in arctic mixed-phase stratus clouds during ISDAC and M-PACE." Journal of Geophysical Research - Atmospheres, 117, D15207, doi:10.1029/2012JD017668. Cloud mean ice crystal concentration Nice(D ≥ 50 micrometers) versus mean aerosol concentration (NPCASP) above cloud for all 41 vertical profiles

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CCN and Vertical Velocity Influences CCN and Vertical Velocity Influences Submitter: Hudson, J. G., Desert Research Institute Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Hudson JG and S Noble. 2013. "CCN and vertical velocity influences on droplet concentrations and supersaturations in clean and polluted stratus clouds." Journal of the Atmospheric Sciences, , . ACCEPTED. Figure 1. Effective cloud supersaturation (Seff) against CCN concentration at 1% S (N1%) for horizontal cloud penetrations, 50 for MASE and 34 for POST. Seff is the S for which nearby below cloud CCN spectra, NCCN(S), equals mean droplet concentration (Nc). Figure 2. One second droplet concentration, Nc, and vertical velocity

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ARM Science Applications of AERI Measurements ARM Science Applications of AERI Measurements Submitter: Smith, W. L., NASA - Langley Research Center Area of Research: Radiation Processes Working Group(s): Cloud Modeling Journal Reference: DeSlover, D. H. 1996. Analysis of Visible and Infrared Cirrus Cloud Optical Properties Using High Spectral Resolution Remote Sensing, M.S. Thesis, University of Wisconsin - Madison. Ho, S.-P. 1997. Atmospheric Profiles From Simultaneous Observations of Upwelling and Downwelling Spectral Radiance, Ph.D. Thesis, University of Wisconsin - Madison. Knuteson, R. O., F. A. Best, H. B. Howell, P. Minnett, H. E. Revercomb, W. L. Smith. 1997. "High Spectral Resolution Infrared Observations at the Ocean-Atmosphere Interface in the Tropical Western Pacific using a Marine

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Desert Dust Determines Aerial Spread of Thunderstorm Clouds Desert Dust Determines Aerial Spread of Thunderstorm Clouds Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Zeng X, W Tao, SW Powell, RA Houze, P Ciesielski, N Guy, H Pierce, and T Matsui. 2013. "A comparison of the water budgets between clouds from AMMA and TWP-ICE." Journal of the Atmospheric Sciences, 70(2), doi:10.1175/JAS-D-12-050.1. The sun, seen through a dusty atmosphere, sets at Niamey, the capital of Niger, which is located in the African Sahara. Anvil clouds that accompany thunderstorms. Contrasts often provide unique perspectives, and scientists seize any such opportunity-when it arises. In a new research paper, published in the Journal of Atmospheric Sciences,

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Aerosols Help Heat Up the Yangtze River Delta in China Aerosols Help Heat Up the Yangtze River Delta in China Download a printable PDF Submitter: Flynn, C. J., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Liu J, Z Li, Y Zheng, C Flynn, and M Cribb. 2012. "Seasonal variations of aerosol optical properties, vertical distribution and associated radiative effects in the Yangtze Delta region of China." Journal of Geophysical Research, 117, D00K38, doi:10.1029/2011JD016490. A team of scientists found that aerosols significantly alter the vertical profile of solar heating in the central Yangtze River Delta region in eastern China. Aerosols were identified from as far away as Mongolia and Siberia. These findings have considerable implications for atmospheric

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Invisible Giants in the Sky Invisible Giants in the Sky Download a printable PDF Submitter: Ovink, J., Pacific Northwest National Laboratory Kassianov, E., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Kassianov E, M Pekour, and J Barnard. 2012. "Aerosols in central California: Unexpectedly large contribution of coarse mode to aerosol radiative forcing." Geophysical Research Letters, 39, L20806, doi:10.1029/2012GL053469. Photo courtesy of the U.S. National Park Service Daily averaged values of (a, b) the direct aerosol radiative forcing (DARF) and (c, d) aerosol radiative forcing efficiency at the top-of-atmosphere calculated for the "original" aerosol optical properties (blue) and

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Structure of Cirrus Properties and Its Coupling with the State of the Structure of Cirrus Properties and Its Coupling with the State of the Large-Scale Atmosphere Download a printable PDF Submitter: Ivanova, K., Pennsylvania State University Ackerman, T. P., University of Washington Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: Ivanova K and TP Ackerman. 2009. "Tracking nucleation-growth-sublimation in cirrus clouds using ARM millimeter wavelength radar observations." Journal of Geophysical Research - Atmospheres, , D06113, 10.1029/2008JD010271. Figure 1. Values of the drift and diffusion coefficients of the Fokker-Planck equation derived from the MMCR radar reflectivity observations. The diffusion coefficient characterizes the small scale, fast

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Climatology of Aerosol Optical Depth in North-Central Oklahoma: Climatology of Aerosol Optical Depth in North-Central Oklahoma: 1992-2008 Download a printable PDF Submitter: Michalsky, J. J., DOC/NOAA/OAR/ESRL Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Michalsky J, F Denn, C Flynn, G Hodges, P Kiedron, A Koontz, J Schlemmer, and SE Schwartz. 2010. "Climatology of aerosol optical depth in north-central Oklahoma: 1992-2008." Journal of Geophysical Research - Atmospheres, 115, D07203, doi: 10.1029/2009JD012197. Box plots of each complete year\'s daily averaged aerosol optical depth (AOD) at 500 nm. The dark horizontal line in each box plot is the median daily averaged AOD for the year; the top and bottom of the rectangular box spans the middle 50% of the data. The mean values for the year are plotted

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Variations of Meridional Aerosol Distribution and Solar Dimming Variations of Meridional Aerosol Distribution and Solar Dimming Download a printable PDF Submitter: Long, C. N., Pacific Northwest National Laboratory Kishcha, P., Tel-Aviv University Starobinets, B., Tel-Aviv University Kalashnikova, O., Jet Propulsion Laboratory Alpert, P., Tel-Aviv University Area of Research: Radiation Processes Working Group(s): Aerosol, Radiative Processes Journal Reference: Kishcha P, B Starobinets, O Kalashnikova, CN Long, and P Alpert. 2009. "Variations of meridional aerosol distribution and solar dimming." Journal of Geophysical Research - Atmospheres, 114, D00D14, 10.1029/2008JD010975. The distribution of four-year aerosol differences (δAOT/δFAOT) between the last four years (March 2004 - February 2008) and the first four years

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Errvironmentaf Research  

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online at www.sciencedirect.com online at www.sciencedirect.com Environmental Research 10 1 (2006) 3 4 4 1 Errvironmentaf Research Do scientists and fishermen collect the same size fish? Possible implications for exposure assessment Joanna urger^^^^', Michael ~ o c h f e l d ~ ~ ~ , Sean Christian W. ~ e i t n e r ~ . ~ , Stephen ~ e w e t t ~ , Daniel SnigarofP, Ronald snigarofff, Tim Starnrng, Shawn ~ a r ~ e f , Max ~ o b e r ~ * , Heloise chenelotd, Robert patrickh, Conrad D. volzi, James ~ e s t o d 'Division of Life Sciences, Rutgers University, 604 Allison Road, Piscataway, NJ 08854-8082, USA b~onsortium for Risk Evaluation with Stakeholder Participation (CRESP), and Environmental and Occupational Healrh Sciences Institute (EOHSI), Piscataway, NJ, USA CEnvironmental and Community Medicine, UMDNJ-Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA

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Minimalist Approach to Modeling Complex Arctic Clouds Minimalist Approach to Modeling Complex Arctic Clouds Download a printable PDF Submitter: Shaw, R. A., Michigan Technological University - Physics Department Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud Life Cycle Journal Reference: Yang F, M Ovchinnikov, and RV Shaw. 2013. "Minimalist model of ice microphysics in mixed-phase stratiform clouds." Geophysical Research Letters, 40(14), doi:10.1002/grl.50700. Nordic winter landscape. Mixed-phase stratiform clouds are common features in the Arctic environment. They contain a mix of ice and "supercooled" water that, despite the freezing temperatures, remains in liquid form. Scientists aren't sure why these clouds exist in the Arctic for long periods of time, even while steadily losing ice particles through precipitation.

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Understanding Ice Formation in Arctic Mixed-Phase Boundary-Layer Clouds Understanding Ice Formation in Arctic Mixed-Phase Boundary-Layer Clouds During ISDAC Download a printable PDF Submitter: Ackerman, A., NASA - Goddard Institute for Space Studies Fridlind, A. M., NASA - Goddard Institute for Space Studies Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Avramov A, AS Ackerman, AM Fridlind, B van Diedenhoven, G Botta, K Aydin, J Verlinde, KV Alexei, W Strapp, GM McFarquhar, R Jackson, SD Brooks, A Glen, and M Wolde. 2011. "Towards ice formation closure in Arctic mixed-phase boundary layer clouds during ISDAC." Journal of Geophysical Research - Atmospheres, 116, D00T08, doi:10.1029/2011JD015910. Ice number size distributions as simulated (dendrites in red, aggregates in

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TOA Radiation Budget of Convective Core/Stratiform Rain/Anvil Clouds from TOA Radiation Budget of Convective Core/Stratiform Rain/Anvil Clouds from Deep Convection Download a printable PDF Submitter: Feng, Z., Pacific Northwest National Laboratory Dong, X., University of North Dakota Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Feng Z, XQ Dong, BK Xi, C Schumacher, P Minnis, and M Khaiyer. 2011. "Top-of-atmosphere radiation budget of convective core/stratiform rain and anvil clouds from deep convective systems." Journal of Geophysical Research - Atmospheres, 116, D23202, doi:10.1029/2011JD016451. An example of the hybrid classification process. (a) GOES IR temperature, (b) NEXRAD radar reflectivity at 2.5 km MSL, (c) cloud patch segmentation from GOES IR temperature (the color patches are identified as deep

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Shortwave Absorption in Tropical Clouds Shortwave Absorption in Tropical Clouds Download a printable PDF Submitter: McFarlane, S. A., U.S. Department of Energy Mather, J. H., Pacific Northwest National Laboratory Ackerman, T. P., University of Washington Liu, Z., University of Washington Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: McFarlane, SA, JH Mather, TP Ackerman, and Z Liu. 2008. "Effect of clouds on the vertical distribution of SW absorption in the Tropics." Journal of Geophysical Research, in press. Daily average all-sky and clear-sky calculated SW column absorption at Manus and Nauru. On average, there is little difference in absorption between the all-sky and clear-sky conditions because of the compensating

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Broadband Albedo Observations in the Southern Great Plains Broadband Albedo Observations in the Southern Great Plains Submitter: Lamb, P. J., University of Oklahoma Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Journal of Applied Meteorology and Climatology, Vol. 45, 2006, pp. 210-235. Figure 1 Figure 2 Because surface reflection of solar radiation plays a fundamental role in the surface energy budget, knowledge of its spatial and temporal variability is important for understanding the weather and climate of a specific region. Research instrumentation at the U.S. Southern Great Plains site-one of three locales around the world managed by the U.S. Department of Energy's Atmospheric Radiation Measurement Program-continuously collects these types of data to help scientist investigate differences in

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Direct Aerosol Forcing: Calculation from Observables and Sensitivities to Direct Aerosol Forcing: Calculation from Observables and Sensitivities to Inputs Download a printable PDF Submitter: McComiskey, A. C., National Oceanic and Atmospheric Administration Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: McComiskey, A, SE Schwartz, B Schmid, H Guan, ER Lewis, P Ricchiazzi, and JA Ogren. 2008. "Direct aerosol forcing: Calculation from observables and sensitivities to inputs." Journal of Geophysical Research 113, D09202, doi:10.1029/2007JD009170. Figure 1. The sensitivity of calculated aerosol direct radiative forcing to input parameters has been examined to determine the consequences of uncertainties in these input parameters on calculated radiative forcing and to identify areas where measurements might be most profitably improved. Input

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Measured Radiative Cooling from Reflective Roofs in India Measured Radiative Cooling from Reflective Roofs in India Download a printable PDF Submitter: Fischer, M. L., Lawrence Berkeley National Laboratory Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle, Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Salamanca F, S Tonse, S Menon, V Garg, KP Singh, M Naja, and ML Fischer. 2012. "Top-of-atmosphere radiative cooling with white roofs: Experimental verification and model-based evaluation." Environmental Research Letters, 7(4), 044007, doi:10.1088/1748-9326/7/4/044007. True color image of light (PW1, PW2) and unpainted tar (PD1), and concrete (PD2) roofs at the Pantnagar, India site taken on October 21, 2011. We note that the concrete roof is considerably more reflective than the tar roof

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Evaluate the Diurnal Cycle in the Multiscale Modeling Framework Using Evaluate the Diurnal Cycle in the Multiscale Modeling Framework Using Satellite and ARM Data Download a printable PDF Submitter: Zhang, Y., Lawrence Livermore National Laboratory Klein, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Zhang, Y, SA Klein, C Liu, B Tian, RT Marchand, JM Haynes, RB McCoy, Y Zhang, and TP Ackerman. 2008. "On the diurnal cycle of deep convection, high-level cloud, and upper troposphere water vapor in the Multiscale Modeling Framework." Journal of Geophysical Research 113, D16105, doi:10.1029/2008JD009905. Figure 1: Diurnal anomalies for tropical (left) ocean and (right) land: (top) the precipitation index (PI), high-level cloud (CLD) and upper

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Climate Warming Due to Soot and Smoke? Maybe Not. Climate Warming Due to Soot and Smoke? Maybe Not. Submitter: Penner, J. E., University of Michigan Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Penner, J.E., S.Y. Zhang, and C.C. Chuang, Soot and smoke aerosol may not warm climate, J. Geophys. Res., 108(D21), 4657, doi:10.1029/2003JD003409, 2003. New research results from the Department of Energy's Atmospheric Radiation Measurement (ARM) Program suggest that fossil fuel soot emissions and biomass smoke may actually have a negligible warming effect and, in some cases, may even result in a net cooling effect. Black carbon is the absorbing component of smoke aerosols that result from the incomplete combustion of various fuels, the most significant sources being fossil fuel

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Exploring Parameterization for Turbulent Entrainment-Mixing Processes in Exploring Parameterization for Turbulent Entrainment-Mixing Processes in Clouds Download a printable PDF Submitter: Liu, Y., Brookhaven National Laboratory Lu, C., Brookhaven National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Lu C, S Niu, S Krueger, and T Wagner. 2013. "Exploring parameterization for turbulent entrainment-mixing processes in clouds." Journal of Geophysical Research - Atmospheres, 118(1), doi:10.1029/2012JD018464. Relationships between the three microphysical measures of homogeneous mixing degree (ψ1, ψ2, ψ3) and the two transition scale numbers (NLa, NL0), respectively. The results shown here are from the EMPM simulations.

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Surface Summertime Radiative Forcing by Shallow Cumuli at the ARM SGP Surface Summertime Radiative Forcing by Shallow Cumuli at the ARM SGP Download a printable PDF Submitter: Berg, L., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Berg LK, EI Kassianov, CN Long, and DL Mills. 2011. "Surface summertime radiative forcing by shallow cumuli at the ARM SGP." Journal of Geophysical Research - Atmospheres, 116, D01202, 10.1029/2010JD014593. Histogram of hourly average shortwave CRF (black) and longwave CRF (red) for all periods with shallow cumuli. (a) Hourly average shortwave CRF (circles), binned shortwave CRF (squares); (b) total number of hourly averages for each sky cover bin; and (c) the change in shortwave TED as a function of sky cover for all hours with

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Development and Recent Evaluation of the MT_CKD Model of Continuum Development and Recent Evaluation of the MT_CKD Model of Continuum Absorption Download a printable PDF Submitter: Mlawer, E. J., Atmospheric & Environmental Research, Inc. Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Mlawer EJ, VH Payne, J Moncet, JS Delamere, MJ Alvarado, and DD Tobin. 2012. "Development and recent evaluation of the MT_CKD model of continuum absorption." Philosophical Transactions of The Royal Society A, 370, doi: 10.1098/rsta.2011.0295. For seven AERI cases with 4-6 cm PWV: (a) average AERI radiances (black) and corresponding calculations using radiation code with previous version of MT_CKD continuum model (red); (b) residuals between AERI and calculations with older model; (c) residuals after the CO2 continuum in

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Field Campaign Resource Allocation Using Statistical Decision Analysis Field Campaign Resource Allocation Using Statistical Decision Analysis Download a printable PDF Submitter: Hanlon, C., Pennsylvania State University Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Hanlon CJ, JB Stefik, AA Small, J Verlinde, and GS Young. 2013. "Statistical decision analysis for flight decision support: The SPartICus campaign." Journal of Geophysical Research - Atmospheres, , . ACCEPTED. In many atmospheric science field campaigns, investigators are budgeted some number of flight hours to collect data under specific, imperfectly forecastable atmospheric conditions. In such field campaigns, investigators must assess atmospheric conditions each day and make a resource-allocation decision: are conditions good enough to use some of our scarce flight hours

Note: This page contains sample records for the topic "research estimated crustal" 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

Research Highlight  

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

Clouds Brighten Up the Sky Near Them Clouds Brighten Up the Sky Near Them Download a printable PDF Submitter: Varnai, T., University of Maryland, Baltimore County/JCEST Marshak, A., NASA - Goddard Space Flight Center Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Varnai T and A Marshak. 2009. "MODIS observations of enhanced clear sky reflectance near clouds." Geophysical Research Letters, 36, L06807, doi:10.1029/2008GL037089. Figure 1. Illustration of clouds enhancing the brightness of sky in nearby clear areas. In cloud-free areas light is scattered mainly by air molecules, but aerosols also contribute. Figure 2. Top: Average increase in MODIS clear-sky reflectivity (R) near clouds. The difference between areas near illuminated and shadowy cloud

262

Research Highlight  

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Cloud-Resolving Model (CRM) Simulations: Robust Results for Use in Climate Cloud-Resolving Model (CRM) Simulations: Robust Results for Use in Climate Model Development Download a printable PDF Submitter: Fridlind, A. M., NASA - Goddard Institute for Space Studies Smith-Mrowiec, A. A., Columbia University/NASA Goddard Institute for Space Studies Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Mrowiec AA, C Rio, AM Fridlind, AS Ackerman, AD Del Genio, OM Pauluis, AC Varble, and J Fan. 2012. "Analysis of cloud-resolving simulations of a tropical mesoscale convective system observed during TWP-ICE: Vertical fluxes and draft properties in convective and stratiform regions." Journal of Geophysical Research, 117, D19201, doi:10.1029/2012JD017759.

263

Research Highlight  

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A Downwelling Infrared Radiance Climatology for the ARM Southern Great A Downwelling Infrared Radiance Climatology for the ARM Southern Great Plains Site Download a printable PDF Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Gero, J., University of Wisconsin Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Turner DD and PJ Gero. 2011. "Downwelling infrared radiance temperature climatology for the Atmospheric Radiation Measurement Southern Great Plains site." Journal of Geophysical Research - Atmospheres, 116, D08212, doi:10.1029/2010JD015135. The distribution of downwelling 10-micron infrared radiance observed at the SGP site by the AERI from June 1996 to May 2010, separated into all-sky (all samples) and the three distinct sky classifications.

264

Research Highlight  

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"Invisible" Giants in the Sky "Invisible" Giants in the Sky Download a printable PDF Submitter: Kassianov, E., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle Journal Reference: Kassianov E, M Pekour, and J Barnard. 2012. "Aerosols in central California: Unexpectedly large contribution of coarse mode to aerosol radiative forcing." Geophysical Research Letters, 39, L20806, doi:10.1029/2012GL053469. Daily averaged values of (a, b) the direct aerosol radiative forcing (DARF) and (c, d) aerosol radiative forcing efficiency at the top-of-atmosphere calculated for the "original" aerosol optical properties (blue) and their PM1.0 (red) and PM2.5 (green) counterparts at the CARES (left) T0 and (right) T1 sites.

265

Research Highlight  

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A New Method for Satellite/Surface Comparisons A New Method for Satellite/Surface Comparisons Download a printable PDF Submitter: Long, C. N., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud Properties, Radiative Processes Journal Reference: Zhang Y, CN Long, WB Rossow, and EG Dutton. 2010. "Exploiting diurnal variations to evaluate the ISCCP-FD flux calculations and radiative-flux-analysis-processed surface observations from BSRN, ARM, and SURFRAD." Journal of Geophysical Research - Atmospheres, 115, D00K11, 10.1029/2009JD012812. Figure 1: Scatter plot for the column aerosol optical depth (AOD) at 550 nm, measured at the surface (PSO) and used as input for the ISCCP-FD calculations (FD) at 10 ARM/SURFRAD/BSRN stations. The robust linear regression line is also shown.

266

Research Highlight  

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Cumuli Impact on Solar Radiation at Surface: Spectral Changes Cumuli Impact on Solar Radiation at Surface: Spectral Changes Download a printable PDF Submitter: Kassianov, E., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle, Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Kassianov E, J Barnard, LK Berg, CN Long, and C Flynn. 2011. "Shortwave spectral radiative forcing of cumulus clouds from surface observations." Geophysical Research Letters, 38, L07801, doi:10.1029/2010GL046282. Figure 1. Normalized total cloud radiative forcing and its direct and diffuse components as a function of wavelength. Typically, under cloudy conditions, radiative transfer parameterizations in climate models have been evaluated by calculating the total cloud impact on

267

Radiation dose estimates for radiopharmaceuticals  

SciTech Connect

Tables of radiation dose estimates based on the Cristy-Eckerman adult male phantom are provided for a number of radiopharmaceuticals commonly used in nuclear medicine. Radiation dose estimates are listed for all major source organs, and several other organs of interest. The dose estimates were calculated using the MIRD Technique as implemented in the MIRDOSE3 computer code, developed by the Oak Ridge Institute for Science and Education, Radiation Internal Dose Information Center. In this code, residence times for source organs are used with decay data from the MIRD Radionuclide Data and Decay Schemes to produce estimates of radiation dose to organs of standardized phantoms representing individuals of different ages. The adult male phantom of the Cristy-Eckerman phantom series is different from the MIRD 5, or Reference Man phantom in several aspects, the most important of which is the difference in the masses and absorbed fractions for the active (red) marrow. The absorbed fractions for flow energy photons striking the marrow are also different. Other minor differences exist, but are not likely to significantly affect dose estimates calculated with the two phantoms. Assumptions which support each of the dose estimates appears at the bottom of the table of estimates for a given radiopharmaceutical. In most cases, the model kinetics or organ residence times are explicitly given. The results presented here can easily be extended to include other radiopharmaceuticals or phantoms.

Stabin, M.G.; Stubbs, J.B.; Toohey, R.E. [Oak Ridge Inst. of Science and Education, TN (United States). Radiation Internal Dose Information Center

1996-04-01T23:59:59.000Z

268

EERE Postdoctoral Research Awards: Postdoctoral Research Awards...  

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Postdoctoral Research Awards: Investing in Innovative Clean Energy Technologies to someone by E-mail Share EERE Postdoctoral Research Awards: Postdoctoral Research Awards:...

269

Sandia National Labs: PCNSC: Research: Research Briefs  

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

Research Briefs The annually published Physical, Chemical, and Nano Sciences Center Research Briefs highlights recent accomplishments supporting our missions. Our research focuses...

270

NREL: Wind Research - Large Wind Turbine Research  

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

Wind Research Search More Search Options Site Map Printable Version Large Wind Turbine Research NREL's utility scale wind system research addresses performance and...

271

Human Subjects Research, Office of Research Administration  

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

research includes a wide variety of activities such as in vivo and in vitro studies, research on medical records, collection of data through surveys or observation, research...

272

Principal Components Instrumental Variable Estimation  

E-Print Network (OSTI)

. The reason for the inconsistency is that the least squares estimation used for the projection of the first stage tends to fit too well, rendering an overfitted PKX which is still correlated with u if the number of instruments is large. The estimating... -dimensional IVE is just an IVE and as such possesses up to rn?G?2 moments, and thus it may achieve the performance in terms of bias of the ‘no moments’ estimators without displaying their unduly volatility due to fat tails. The fulfilment of condition (A) is key...

Winkelried, Diego; Smith, Richard J.

2011-01-31T23:59:59.000Z

273

Advanced Research  

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

Ductility EnhancEmEnt of molybDEnum Ductility EnhancEmEnt of molybDEnum PhasE by nano-sizED oxiDE DisPErsions Description Using computational modeling techniques, this research aims to develop predictive capabilities to facilitate the design and optimization of molybdenum (Mo), chromium (Cr), and other high-temperature structural materials to enable these materials to withstand the harsh environments of advanced power generation systems, such as gasification-based systems. These types of materials are essential to the development of highly efficient, clean energy technologies such as low-emission power systems that use coal or other fossil fuels.

274

Advanced Research  

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

Super HigH-TemperaTure alloyS and Super HigH-TemperaTure alloyS and CompoSiTeS From nb-W-Cr SySTemS Description The U.S. Department of Energy's Office of Fossil Energy (DOE-FE) has awarded a three-year grant to the University of Texas at El Paso (UTEP) and Argonne National Laboratory (ANL) to jointly explore the high-temperature properties of alloys composed of niobium (Nb), tungsten (W), and chromium (Cr). The grant is administered by the Advanced Research (AR) program of the National

275

Estimation of Surface Heat Flux  

Science Conference Proceedings (OSTI)

The authors reconsider the problem of estimating the sensible heat transfer at the earth's surface from direct measurements of turbulent fluxes in the atmospheric boundary layer. For simplicity, only horizontally homogeneous conditions are ...

Jielun Sun; Steven K. Esbensen; L. Mahrt

1995-09-01T23:59:59.000Z

276

Estimation of resources and reserves  

E-Print Network (OSTI)

This report analyzes the economics of resource and reserve estimation. Current concern about energy problems has focused attention on how we measure available energy resources. One reads that we have an eight-year oil ...

Massachusetts Institute of Technology. Energy Laboratory.

1982-01-01T23:59:59.000Z

277

Quantum estimation of relative information  

E-Print Network (OSTI)

We derive optimal schemes for preparation and estimation of relational degrees of freedom between two quantum systems. We specifically analyze the case of rotation parameters representing relative angles between elements of the SU(2) symmetry group. Our estimation procedure does not assume prior knowledge of the absolute spatial orientation of the systems and as such does not require information on the underlying classical reference frame in which the states are prepared.

Netanel H. Lindner; Petra F. Scudo; Dagmar Bruss

2005-06-27T23:59:59.000Z

278

PDV Uncertainty Estimation & Methods Comparison  

Science Conference Proceedings (OSTI)

Several methods are presented for estimating the rapidly changing instantaneous frequency of a time varying signal that is contaminated by measurement noise. Useful a posteriori error estimates for several methods are verified numerically through Monte Carlo simulation. However, given the sampling rates of modern digitizers, sub-nanosecond variations in velocity are shown to be reliably measurable in most (but not all) cases. Results support the hypothesis that in many PDV regimes of interest, sub-nanosecond resolution can be achieved.

Machorro, E.

2011-11-01T23:59:59.000Z

279

Estimate product quality with ANNs  

Science Conference Proceedings (OSTI)

Artificial neural networks (ANNs) have been applied to predict catalytic reformer octane number (ON) and gasoline splitter product qualities. Results show that ANNs are a valuable tool to derive fast and accurate product quality measurements, and offer a low-cost alternative to online analyzers or rigorous mathematical models. The paper describes product quality measurements, artificial neural networks, ANN structure, estimating gasoline octane numbers, and estimating naphtha splitter product qualities.

Brambilla, A. [Univ. of Pisa (Italy); Trivella, F. [Adicon Advanced Distillation Control SrL, Pisa (Italy)

1996-09-01T23:59:59.000Z

280

Sandia National Laboratories: Research: Research Foundations...  

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

Geoscience Materials Science Nanodevices and Microsystems Radiation Effects and High Energy Density Science Research Geoscience Geoscience photo The Geoscience Research...

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


281

Microanalysis Research Group Staff  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. Microanalysis Research Group Staff. ... Joseph M. Conny, Research Chemist. Jeff M. Davis, Materials Research Engineer. ...

2013-05-15T23:59:59.000Z

282

DOE G 430.1-1 Chp 15, Estimating Methods  

Directives, Delegations, and Requirements

Estimating methods, estimating indirect and direct costs, and other estimating considerations are discussed in this chapter.

1997-03-28T23:59:59.000Z

283

Research Highlight  

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

Anthropogenic Aerosols: a Clearer Understanding Anthropogenic Aerosols: a Clearer Understanding Submitter: Daum, P., Brookhaven National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Liu, Y., and P. H. Daum, 2002: "Indirect warming effect from dispersion forcing," Nature 419(6872):580-581. Figure 1. Key = Green symbols: triangle - FIRE, northeastern Pacific; Crossed circles - SOCEX, Southern Ocean; Filled circle - ACE1, Southern Ocean; Blue symbols: Filled circles - ASTEX 8, northeastern Atlantic; Diamonds - SCMS 8, Florida coast; Filled triangles - Sounding 9, ASTEX; Filled squares - horizontal 9, ASTEX; Open inverted triangles - level 1; Open upright triangles - level 2; Open circles - level 3, all from southwest of San Diego 10; open diamonds - SCMS 11; stars - vertical, ASTEX

284

Research Highlight  

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Biases in Column Absorption for Fractal Clouds Biases in Column Absorption for Fractal Clouds Submitter: Wiscombe, W. J., Brookhaven National Laboratory Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Marshak, Alexander; Davis, Anthony; Wiscombe, Warren; Ridgway, William; Cahalan, Robert; 1998: "Biases in Shortwave Column Absorption in the Presence of Fractal Clouds," J. Climate 11(3):431-446. Figure 1: Water vapor transmission spectra for solar zenith angle of 60 degree. From the top: from TOA to 5 km, from TOA to 1 km, from TOA to 0.5 km and, finally, from TOA to surface. Figure 2: Fractional cloudiness N = 0.777. (a) Horizontal distribution of optical depth, the same for both models. (b) Horizontal distribution of cloud height for optical model. Constant cloud top and cloud base; thus

285

Research Highlight  

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More Like Shades of Gray: the Effects of Black Carbon in Aerosols More Like Shades of Gray: the Effects of Black Carbon in Aerosols Submitter: McComiskey, A. C., National Oceanic and Atmospheric Administration Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Cappa CD, TB Onasch, P Massoli, DR Worsnop, TS Bates, ES Cross, P Davidovits, J Hakala, KL Hayden, BT Jobson, KR Kolesar, DA Lack, BM Lerner, SM Li, D Mellon, I Nuaaman, JS Olfert, T Petaja, PK Quinn, C Song, R Subramanian, EJ Williams, and RA Zaveri. 2012. "Radiative absorption enhancements due to the mixing state of atmospheric black carbon." Science, 337(6098), doi:10.1126/science.1223447. Black to the core: Scientists are combining field and laboratory measurements to understand more about the physical properties of aerosols

286

Research Highlight  

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A New Bulk Microphysical Scheme That Includes Riming Intensity and A New Bulk Microphysical Scheme That Includes Riming Intensity and Temperature Dependent Ice Ch Download a printable PDF Submitter: Lin, Y., Geophysical Fluid Dynamics Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Lin Y and BA Colle. 2011. "A new bulk microphysical scheme that includes riming intensity and temperature dependent ice characteristics." Monthly Weather Review, 139(3), 10.1175/2010MWR3293.1. (a) Coefficients of area-diameter (A-D) relationship in the new scheme. (b) Same as (a), except for the mass-diameter (M-D) relationship. (c) Same as (a), but for the velocity-diameter (V-D) relationship. (d) Same as (c), but each line shows the variation with Ri. More details of the figure are

287

Research Highlight  

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New Method Simulates 3D Ice Crystal Growth Within Clouds New Method Simulates 3D Ice Crystal Growth Within Clouds Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Harrington JY, K Sulia, and H Morrison. 2013. "A method for adaptive habit prediction in bulk microphysical models. Part I: theoretical development." Journal of the Atmospheric Sciences, 70(2), doi:10.1175/JAS-D-12-040.1. Harrington JY, K Sulia, and H Morrison. 2013. "A method for adaptive habit prediction in bulk microphysical models. Part II: parcel model corroboration." Journal of the Atmospheric Sciences, 70(2), doi:10.1175/JAS-D-12-0152.1. A close-up of ice crystals. Ever noticed the different shapes of snowflakes sticking on the windowpane

288

Research Highlight  

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Dust in the Wind... and the Clouds... and the Atmosphere Dust in the Wind... and the Clouds... and the Atmosphere Submitter: Sassen, K., University of Alaska, Fairbanks Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Sassen, K., P.J. DeMott, J.M. Propsero, and M.R. Poellot, Saharan Dust Storms and Indirect Aerosol Effects on Clouds: CRYSTAL-FACE Results, Geophys. Res. Ltt., 30(12), 1633, doi:10/1029/2003GL017371, 2003. PDL linear depolarization ratio (color scale on top) and relative returned power (in gray scale) of height versus time displays obtained on July 29, 2002, during the CRYSTAL-FACE experiment. Depicted are strong depolarizing upper tropospheric clouds (~10km), aerosols (δ ~.10 to .15) extending up to ~5.5km, and at lower right (scale adjusted to account for signal

289

Research Highlight  

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Heating Up the Arctic: Most Complete Data Set Ever Collected Helps Heating Up the Arctic: Most Complete Data Set Ever Collected Helps Scientists Understand Aerosol Download a printable PDF Submitter: Ghan, S. J., Pacific Northwest National Laboratory Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle Journal Reference: McFarquhar GM, S Ghan, J Verlinde, A Korolev, JW Strapp, B Schmid, JM Tomlinson, M Wolde, SD Brooks, D Cziczo, MK Dubey, JW Fan, C Flynn, I Gultepe, J Hubbe, MK Gilles, A Laskin, P Lawson, WR Leaitch, P Liu, XH Liu, D Lubin, C Mazzoleni, AM Macdonald, RC Moffet, H Morrison, M Ovchinnikov, MD Shupe, DD Turner, SC Xie, A Zelenyuk, K Bae, M Freer, and A Glen. 2011. "Indirect and Semi-Direct Aerosol Campaign: the impact of Arctic aerosols on clouds." Bulletin of the American Meteorological

290

Research Highlight  

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Ice Nuclei and Global Warming Ice Nuclei and Global Warming Download a printable PDF Submitter: Zeng, X., NASA - Goddard Space Flight Center Tao, W., NASA - Goddard Space Flight Center Zhang, M., Stony Brook University Hou, A., NASA - Goddard Space Flight Center Xie, S., Lawrence Livermore National Laboratory Lang, S. E., NASA - Goddard Space Flight Center Li, X., University of Maryland, Baltimore County Starr, D. O., NASA - Goddard Space Flight Center Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Zeng X, WK Tao, M Zhang, AY Hou, S Xie, S Lang, X Li, DO Starr, and X Li. 2009. "A contribution by ice nuclei to global warming." Quarterly Journal Royal Meteorological Society, EARLY VIEW, doi:10.1002/qj.449.

291

Research Highlight  

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"Radiance Assimilation" Correction Method Improves Water Vapor Radiosonde "Radiance Assimilation" Correction Method Improves Water Vapor Radiosonde Observations in the Upper Troposphere Submitter: Soden, B. J., University of Miami Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Soden, B.J., D.D. Turner, B.M. Lesht, and L.M. Miloshevich (2004), An analysis of satellite, radiosonde, and lidar observations of upper tropospheric water vapor from the Atmospheric Radiation Measurement Program, J. Geophys. Res., 109, D04105, doi:10/1029/2003JD003828. Time-average relative humidity profiles from both original (black) and radiance-adjusted (blue) radiosonde soundings compared to the lidar (red) retrievals from field campaigns in 1996, 1997, 1999, and 2000.

292

Research Highlight  

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Continuous Dataset of Water Vapor Measurements Throws Water on Assumptions Continuous Dataset of Water Vapor Measurements Throws Water on Assumptions of Cirrus Cloud Formation Submitter: Comstock, J. M., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Comstock, J. M., T. P. Ackerman, and D. D. Turner, 2004: Evidence of high ice supersaturation in cirrus clouds using ARM Raman lidar measurements. Geophys. Res. Letters, doi:10.1029/2004GL019705. To illustrate their findings, a continuous nine-hour segment of Raman lidar measurements showed upper tropospheric RHI measurements ranging from 120% near cloud tops and decreasing to about 70% at cloud base. To study the link between water vapor, cirrus cloud formation (homogenous and heterogenous) mechanisms, and their potential climatic impacts,

293

Research Highlight  

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All Mixed Up-Probing Large and Small Scale Turbulence Structures in All Mixed Up-Probing Large and Small Scale Turbulence Structures in Continental Stratocumulus Clouds Download a printable PDF Submitter: Fang, M., University of Miami Albrecht, B. A., University of Miami Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Fang M, BA Albrecht, VP Ghate, and P Kollias. 2013. "Turbulence in continental stratocumulus, Part I: External forcings and turbulence structures." Boundary-Layer Meteorology, 149(454), doi:10.1007/s10546-013-9873-3. Coherent structures of the vertical velocity (left panels) and the energy dissipation rate (right panels) in updraft region during the day (a, b), night (c, d), and for entire 16 hours (e, f) of continental stratocumulus. Continental stratocumulus clouds are frequently observed in the cold side

294

Research Highlight  

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Preferred States of the Winter Arctic Atmosphere, Surface, and Sub-Surface Preferred States of the Winter Arctic Atmosphere, Surface, and Sub-Surface Download a printable PDF Submitter: Del Genio, A. D., NASA Area of Research: Surface Properties Working Group(s): Cloud Life Cycle Journal Reference: Stramler K, AD Del Genio, and WB Rossow. 2011. "Synoptically driven Arctic winter states." Journal of Climate, 24(6), doi:10.1175/2010JCLI3817.1. SHEBA winter hourly surface net (down - up) longwave radiation flux versus surface temperature. Blue circles indicate times when a combined radar-lidar cloud detection indicated clear skies, and red plus signs indicate times when clouds were detected. Time series of SHEBA winter hourly temperatures at the atmospheric temperature inversion altitude (magenta), surface (black), snow-sea ice

295

Research Highlight  

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Seasonal Variation of the Physical Properties of Marine Boundary Clouds Seasonal Variation of the Physical Properties of Marine Boundary Clouds Download a printable PDF Submitter: Zhang, M., Stony Brook University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling, Cloud Properties Journal Reference: Lin W, M Zhang, and NG Loeb. 2009. "Seasonal variation of the physical properties of marine boundary layer clouds off the California coast." Journal of Climate, 22(10), doi:10.1175/2008JCLI2478.1. Image (a). Seasonal contrast of marine boundary-layer clouds between (a) summer (above) and (b) winter (below) off the California coast. Shown are cloud amount in the shaded box, cloud top and base heights and lifting condensation level (LCL) to the left, and cloud thickness and adiabatic

296

Research Highlight  

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The Vertical Structure of Cloud Radiative Forcing at the ACRF SGP Revealed The Vertical Structure of Cloud Radiative Forcing at the ACRF SGP Revealed by 8 Years of Continuous Measurements Submitter: Mace, G., Utah State University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling, Cloud Properties Journal Reference: Accepted to Journal of Climate, 2007. Figure 1. Cloud occurrence, coverage, radiative forcing, and radiation effects over a composite annual cycle that is derived by averaging all observations collected during a particular month for all years. a) cloud occurrence in 100 mb vertical bins, b) cloud coverage, c) infrared cloud radiative forcing in 100 mb vertical bins, d) solar cloud radiative forcing, e) net cloud radiative forcing, f,g,h) solar (dotted), IR (solid), and net (dashed) cloud radiative effect for TOA (f), atmosphere (g), and

297

Research Highlight  

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New Characterization of Organic Aerosol Evolution Will Help Improve Models New Characterization of Organic Aerosol Evolution Will Help Improve Models Download a printable PDF Submitter: Jimenez, J., University of Colorado Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Jimenez JL and . et al. 2009. "Evolution of organic aerosols in the atmosphere." Science, 326, doi: 10.1126/science.1180353. Total mass concentration (in micrograms per cubic meter) and mass fractions of non-refractory inorganic species and organic components in submicrometer aerosols measured with the AMS at multiple surface locations in the Northern Hemisphere. Inset: Distributions of O:C for the OA components identified at the different sites. Relationship between O:C and hygroscopicity (k, or equivalently the

298

Research Highlight  

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Validation of CERES-MODIS Cloud Properties Using ARM Data Validation of CERES-MODIS Cloud Properties Using ARM Data Submitter: Dong, X., University of North Dakota Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Dong, X., P. Minnis, B. Xi, S. Sun-Mack, and Y. Chen, 2007: Validation of CERES-MODIS stratus cloud properties using ground-based measurements at the DOE ARM SGP site. Accepted by J. Geophys. Res. Wielicki, B. A. and Co-authors (2000), CERES Validation Plan Overview, Release 4, 10/20/00, 58 pp. (Available at http://asd-www.larc.nasa.gov/ceres/validation/ ceresval_r4.0_over.pdf) Figure 1. Time series of surface-derived cloud-base and -top heights and temperatures (1-hour average) and matched MODIS-derived effective cloud heights and temperatures (30-km x 30-km box) for daytime single-layer and

299

Research Highlight  

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Single-Scattering Properties of Aggregates of Plates Single-Scattering Properties of Aggregates of Plates Download a printable PDF Submitter: Um, J., University of Illinois, Urbana McFarquhar, G., University of Illinois, Urbana Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: Um J and GM McFarquhar. 2009. "Single-scattering properties of aggregates of plates." Quarterly Journal Royal Meteorological Society, 135(639), 10.1002/qj.378. Aggregates of plates imaged by Cloud Particle Imager (left panel) and idealized geometry of aggregates of plates with AI=0.61 (right panel). Asymmetry parameter (g) at λ=0.55 μm of 80 different aggregates of seven 100 μm plates attached together, as functions of (a) AI, (b) 1-AR, and (c) An. The correlation coefficient and constants for a fitting equation,

300

Research Highlight  

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A Finer Mesh to Improve Cloud Representation in Climate Models? A Finer Mesh to Improve Cloud Representation in Climate Models? Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Boutle IA, SJ Abel, PG Hill, and CJ Morcrette. 2013. "Spatial variability of liquid cloud and rain: observations and microphysical effects." Quarterly Journal Royal Meteorological Society, , doi:10.1002/qj.2140. Different sizes of water droplets as well as varying water content dramatically alter cloud properties-often at a resolution finer than is currently in use by most climate models. Although clouds can extend for several kilometers, their properties-for example, liquid and rainwater content-can change dramatically over very

Note: This page contains sample records for the topic "research estimated crustal" 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
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301

Research Highlight  

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Different Strokes for Different Folks-Not Any More, Say Scientists at the Different Strokes for Different Folks-Not Any More, Say Scientists at the UK Met Office Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Morcrette CJ, EJ O'Connor, and JC Petch. 2012. "Evaluation of two cloud parametrization schemes using ARM and Cloud-Net observations." Quarterly Journal Royal Meteorological Society, 138(665), doi:10.1002/qj.969. Integrating different metrics-and their errors and biases-used in weather and climate models may improve predictions by both types of models. What works for the weather models does not for climate models. Devising a common language, which translates into integrating the slew of metrics that the weather and climate science community uses, could be a way to improve

302

Research Highlight  

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A Proposed Measurement Standard for Diffuse Radiation Flux A Proposed Measurement Standard for Diffuse Radiation Flux Download a printable PDF Submitter: Michalsky, J. J., DOC/NOAA/OAR/ESRL Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Michalsky, J. J., C. Gueymard, P. Kiedron, L. J. B. McArthur, R. Philipona, and T. Stoffel, 2007: A proposed working standard for the measurement of diffuse horizontal shortwave irradiance, J. Geophys. Res., 112, D16112, doi:10.1029/2007JD008651. The three pyranometers proposed for the international standard for diffuse flux are shown here in action during the 2006 campaign at the ACRF SGP site. Of note are the shadows of the blocking balls on the domes of each pyranometer. The blocking balls are moved by a solar tracker to continuously shade the pyranometers.

303

Research Highlight  

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Impact of Anthropogenic Emissions on Organic Aerosols During CARES Impact of Anthropogenic Emissions on Organic Aerosols During CARES Submitter: Zhang, Q., University of California, Davis Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: Setyan A, Q Zhang, M Merkel, WB Knighton, Y Sun, C Song, J Shilling, TB Onasch, S Herndon, D Worsnop, JD Fast, R Zaveri, LK Berg, A Wiedensohler, BA Flowers, MK Dubey, and R Subramanian. 2012. "Characterization of submicron particles influenced by mixed biogenic and anthropogenic emissions using high-resolution aerosol mass spectrometry: Results from CARES." Atmospheric Chemistry and Physics, 12, doi:10.5194/acp-12-8131-2012. High-resolution mass spectra (colored by ion category) and elemental ratios of the OA factors. Average contribution of ion categories to the total

304

Research Highlight  

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Laboratory-Measured Optical Properties of Primary Organic Aerosol for Laboratory-Measured Optical Properties of Primary Organic Aerosol for Humidities Up to 95% Download a printable PDF Submitter: Bond, T., University of Illinois, Urbana Rood, M. J., University of Illinois, Urbana Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Brem BT, FC Mena Gonzalez, SR Meyers, TC Bond, and MJ Rood. 2011. "Laboratory-measured optical properties of inorganic and organic aerosols at relative humidities up to 95%." Aerosol Science and Technology, 46(2), doi:10.1080/02786826.2011.617794. Optical properties of the nigrosin benchmark aerosol as a function of relative humidity (RH). Measured extinction (σep) and scattering (σsp) for 467 nm, 530 nm and 660 nm are shown in 1a), 1b) and 1c); calculated

305

Research Highlight  

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Arctic Mixed-phase Clouds Persist with Little Help from the Local Surface Arctic Mixed-phase Clouds Persist with Little Help from the Local Surface Download a printable PDF Submitter: Shupe, M., University of Colorado Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Shupe MD, OG Persson, IM Brooks, M Tjernstrom, J Sedlar, T Mauritsen, S Sjogren, and C Leck. 2013. "Cloud and boundary layer interactions over the Arctic sea ice in late summer." Atmospheric Chemistry and Physics, 13, doi:10.5194/acp-13-9379-2013. Figure 1. Normalized profiles of (a) vertical velocity skewness and (b) variance, (c) turbulent dissipation rate, and (d) potential temperature. Black curves are all data, while red and green are for decoupled and coupled cases, respectively. Normalization is relative to the cloud top

306

Research Highlight  

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Tackling Tropical Convection in Climate Models Tackling Tropical Convection in Climate Models Submitter: Zhang, G. J., University of California, San Diego Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Zhang, G. J., and H. Wang, 2006. Toward mitigating the double ITCZ problem in NCAR CCSM3, Geophys. Res. Lett., 33, L06709, doi:10.1029/2005GL025229 (23 March 2006). Figure 1. Climate models commonly suffer from a problem known as the double-ITCZ, which is illustrated here via observed and model-simulated rainfall at the surface. The error is seen in the region circled where, compared to observations (Image A), the original climate model (Image B) produces a second, erroneous equatorial ITCZ band southward from the one

307

Research Highlight  

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Shallow Clouds Make the Case for Remote Sensing Instrumentation Shallow Clouds Make the Case for Remote Sensing Instrumentation Submitter: McFarlane, S. A., U.S. Department of Energy Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: McFarlane, S. A., and W. W. Grabowski (2007). Optical properties of shallow tropical cumuli derived from ARM ground-based remote sensing, Geophys. Res. Lett., 34, L06808, doi:10.1029/2006GL028767. In this figure, the lines indicate theoretical calculations of cloud droplet size for clouds with various droplet concentrations in which no mixing occurs. The cloud droplet size shows significant variability with height. Traditionally, observations of air mixing and cloud droplet size come from in situ aircraft probes, which collect data at very high horizontal

308

Center Research  

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5 5 Center Research ... Supports Electric Utility Restructuring Winds of change in the U.S. power sector: factors listed in the left column have created a gap between the prices utilities must charge to recover their embedded costs and the lower rates they would have to charge in a competitive environment. Possible responses to these pressures are listed to the right. The electricity industry in the U.S. is being dramatically restructured by state regulatory commissions and the Federal Energy Regulatory Commission. Efforts are underway to create a wholesale market for electricity, with wholesale prices to distributing utility companies no longer being regulated. Discussions in several states and at the FERC are aimed at revising the regulation of the structure, operation, and pricing of the

309

Research Highlight  

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Scale Shows True Weight of Aerosol Effects on Clouds Scale Shows True Weight of Aerosol Effects on Clouds Download a printable PDF Submitter: McComiskey, A. C., National Oceanic and Atmospheric Administration Area of Research: Aerosol Processes Working Group(s): Aerosol Life Cycle Journal Reference: McComiskey A and G Feingold. 2012. "The scale problem in quantifying aerosol indirect effects." Atmospheric Chemistry and Physics, 12, doi:10.5194/acp-12-1031-2012. Differing values: Values derived from aircraft and surface observations, which represent disaggregated data, differ from those derived from satellite-based data, which represent data aggregated at a range of levels. Currently, many climate change models treat the two types of data the same. Aerosols-tiny airborne particles from sources like pollution or desert

310

Research Highlight  

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Aerosol Experiment Results Featured in Technical Journal Aerosol Experiment Results Featured in Technical Journal Submitter: Sheridan, P., U.S. Department of Commerce/NOAA Area of Research: Aerosol Properties Working Group(s): Aerosol Journal Reference: Sheridan, P, W Arnott, J Ogren, E Andrews, D Atkinson, D Covert, H Moosmuller, A Petzold, B Schmid, A Strawa, R Varma, and A Virkkula. 2005. "The Reno Aerosol Optics Study: An evaluation of aerosol absorption measurement methods." Aerosol Science and Technology 39(1):1-16. This magnification shows the size of aerosol particles relative to the pore size of the filter used during one of the study's sampling runs. Aerosol particles are gaining increasing scientific attention as a key factor in climate change. Through scattering and absorption of solar radiation, or by altering cloud properties, aerosols have the potential to

311

Research Highlight  

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Improved Accuracy in Liquid Water Path Retrievals Improved Accuracy in Liquid Water Path Retrievals Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: Clouds with Low Optical [Water] Depths (CLOWD) Working Group(s): Radiative Processes Journal Reference: Turner, D.D., 2007: Improved ground-based liquid water path retrievals using a combined infrared and microwave approach. J. Geophys. Res., 112, D15204, doi:10.1029/2007JD008530. Turner, D.D., A.M. Vogelmann, R. Austin, J.C. Barnard, K. Cady-Pereira, C. Chiu, S.A. Clough, C.J. Flynn, M.M. Khaiyer, J.C. Liljegren, K. Johnson, B. Lin, C.N. Long, A. Marshak, S.Y. Matrosov, S.A. McFarlane, M.A. Miller, Q. Min, P. Minnis, W. O'Hirok, Z. Wang, and W. Wiscombe, 2007: Thin liquid water clouds: Their importance and our challenge. Bull. Amer. Meteor. Soc.,

312

Research Highlight  

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Cloud Survey over West Africa Reveals Climate Impact of Mid-Level Clouds Cloud Survey over West Africa Reveals Climate Impact of Mid-Level Clouds Submitter: Bhattacharya, A., Pacific Northwest National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Bouniol D, F Couvreux, PH Kamsu-Tamo, M Leplay, F Guichard, F Favot, and EJ O'Connor. 2012. "Diurnal and seasonal cycles of cloud occurrences, types, and radiative impact over West Africa." Journal of Applied Meteorology and Climatology, 51(3), doi:10.1175/JAMC-D-11-051.1. Clouds occurring at different levels in the sky have varying impacts on Earth's energy budget. Clouds with bases between five and seven kilometers above the Earth's surface, also known as mid-level clouds, occur over West Africa all year-round and may have major impacts on the Earth's energy budget,

313

Research Highlight  

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Aerosols Help Clouds Warm Up Arctic Aerosols Help Clouds Warm Up Arctic Submitter: Lubin, D., National Science Foundation Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Lubin, D., and A.M. Vogelmann, 2006: A climatologically significant aerosol longwave indirect effect in the Arctic, Nature, 439, 26 January, 453-456, doi:10.1038/nature04449 In a process known as the first aerosol indirect effect, enhanced aerosol concentrations cause the droplets in a cloud to be smaller and more numerous within a cloud of fixed water amount. This study found that this process can make many clouds more opaque and emit more thermal energy to the surface. The warming of the Arctic climate and decreases in sea ice area and thickness observed over recent decades are believed to result from

314

Research Highlight  

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Cloud Phase Determination Using Ground-Based AERI Observations at SHEBA Cloud Phase Determination Using Ground-Based AERI Observations at SHEBA Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Properties Journal Reference: Turner, D.D., S.A. Ackerman, B.A. Baum, H.E. Revercomb, and P. Yang, 2003: "Cloud Phase Determination Using Ground-Based AERI Observations at SHEBA," Journal of Applied Meteorology 42(6):701-715. The SHEBA experiment in Barrow, Alaska used data collected by the ground-based radiation observations from the Atmospheric Emitted Radiance Interferometer (AERI). (Photo Credit: SHEBA Project Office) Key Contributors: S.A. Ackerman, B.A. Baum, H.E. Revercomb, P. Yang, In the frigid environs of the Acrtic, ARM scientists at the North Slope of

315

Research Highlight  

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An Application of Linear Programming Techniques to ARM Polarimetric Radar An Application of Linear Programming Techniques to ARM Polarimetric Radar Processing Download a printable PDF Submitter: Giangrande, S., Brookhaven National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Giangrande SE, R McGraw, and L Lei. 2013. "An application of linear programming to polarimetric radar differential phase processing." Journal of Atmospheric and Oceanic Technology, , . ACCEPTED. C-band scanning ARM precipitation radar fields of radar reflectivity factor Z and processed specific differential phase KDP for a section of a Midlatitude Continental Convective Clouds Experiment (MC3E) convective event as output from LP methods implemented for the ARM PyART processing suite. Detailed microphysical insights from weather radar systems are in demand

316

Research Highlight  

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Global Variability of Mesoscale Convective System Anvil Structure from Global Variability of Mesoscale Convective System Anvil Structure from A-train Satellite Data Submitter: Yuan, J., University of Washington Houze, R., University of Washington Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Yuan J and RA Houze. 2010. "Global variability of mesoscale convective system anvil structure from A-train satellite data." Journal of Climate, 23, 5864-5888. Figure. 1 Annual mean (2007) climatology of anvil clouds associated with (a) small separated MCSs (<12000 km^2, the smallest 25%), (b) large separated MCSs (>40000 km^2, the largest 25%), and (c) connected MCSs. The color indicates percentage of area covered by MCS anvil clouds for each 5°x5° grid. In the tropics, upper-level clouds containing ice and mixtures of ice and

317

Research Highlight  

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Power in the Vertical: Using Wind Profiler Data to Study Precipitation Power in the Vertical: Using Wind Profiler Data to Study Precipitation Download a printable PDF Submitter: Kollias, P., McGill University Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Tridon F, A Battaglia, P Kollias, E Luke, and C Williams. 2013. "Signal post-processing and reflectivity calibration of the Atmospheric Radiation Measurement Program 915 MHz wind profilers." Journal of Atmospheric and Oceanic Technology, 30(6), doi:10.1175/JTECH-D-12-00146.1. Because ARM's wind profilers (foreground) can take vertical as well as horizontal measurements, the instruments can be used with appropriate processing and calibration to help study rainfall. For more than two decades, radar wind profilers of the U.S. Department of

318

Research Highlight  

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Seasonal Case Studies Reveal Significant Variance in Large-Scale Forcing Seasonal Case Studies Reveal Significant Variance in Large-Scale Forcing Data Submitter: Xie, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Xie, S, R.T Cederwall, M. Zhang, and J.J. Yio, Comparison of SCM and CSRM forcing data derived from the ECMWF model and from objective analysis at the ARM SGP site, J. Geophys. Res., 108(D16), 4499, doi:10.1029/2003JD003541, 2003. Observed (left) and ECMWF-derived (right) forcing fields of time-height distributions of the derived (top) vertical velocity, (middle) total advective tendency and temperature, and (bottom) total advective tendency of moisture during the selected strong precipitation period during summer

319

Research Highlight  

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Improving Water Vapor Absorption in Microwave Radiative Transfer Models Improving Water Vapor Absorption in Microwave Radiative Transfer Models Download a printable PDF Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Loehnert, U., University of Cologne Cadeddu, M. P., Argonne National Laboratory Crewell, S., University of Cologne Vogelmann, A. M., Brookhaven National Laboratory Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Turner DD, MP Cadeddu, U Loehnert, S Crewell, and A Vogelmann. 2009. "Modifications to the water vapor continuum in the microwave suggested by ground-based 150 GHz observations." IEEE Transactions on Geoscience and Remote Sensing, 47(10), 3326-3337. Figure 1: The top panel shows downwelling microwave brightness temperature

320

Research Highlight  

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Black Carbon Reduction of Snow Albedo Black Carbon Reduction of Snow Albedo Submitter: Kirchstetter, T. W., Lawrence Berkeley National Laboratory Area of Research: Radiation Processes Working Group(s): Aerosol Life Cycle Journal Reference: Hadley OL and TW Kirchstetter. 2012. "Black carbon reduction of snow albedo." Nature Climate Change, , doi:10.1038/nclimate1433. Spectrally weighted snow albedo over the 300-2,500 nm solar spectrum: derived from our experiments (dots, 1 standard deviation) and modelled using SNICAR (shaded bands). Upper and lower boundaries of the shaded bands correspond to modelled albedo assuming BC mass absorption cross-sections, at 550 nm, of 7.5 and 15 m2/g, respectively. Climate models indicate that the reduction of surface albedo caused by black carbon contamination of snow contributes to global warming and

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


321

Research Highlight  

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

Optimal Method to Determine Orientation Average of Scattering Properties of Optimal Method to Determine Orientation Average of Scattering Properties of Ice Crystals Download a printable PDF Submitter: Um, J., University of Illinois, Urbana McFarquhar, G., University of Illinois, Urbana Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Um J and GM McFarquhar. 2013. "Optimal numerical methods for determining the orientation averages of single-scattering properties of atmospheric ice crystals." Journal of Quantitative Spectroscopy & Radiative Transfer, 127, doi:10.1016/j.jqsrt.2013.05.020. Fig.1. Idealized shapes of ice crystals used in this study: (a) Gaussian random sphere (GS), (b) droxtal (DX), (c) budding Bucky ball (3B), and (d) column (COL). All models are visualized with dipoles. For (b), (c), and (d)

322

Research Highlight  

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Performance of Longwave Radiative Transfer Models for 3D Cloud Fields Performance of Longwave Radiative Transfer Models for 3D Cloud Fields Download a printable PDF Submitter: Kablick III, G. P., University of Maryland Ellingson, R. G., Florida State University Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Kablick III GP, RG Ellingson, EE Takara, and J Gu. 2011. "Longwave 3D benchmarks for inhomogeneous clouds and comparisons with approximate methods." Journal of Climate, 24, doi:10.1175/2010JCLI3752.1. The respective flux and heating rate errors (model-3DMC) for (a),(b) ATEX and (c),(d) GATE A. The error profiles in (a) and (c) are to be interpreted as ICA, solid lines; MRO, dashed lines; RO, dotted lines. (b) and (d) also show the differences between MRO and RO. The horizontal lines are the

323

Research Highlight  

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Modeling of Scattering and Absorption by Nonspherical Cirrus Modeling of Scattering and Absorption by Nonspherical Cirrus Submitter: Dong, Q., University of Washington Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Fu, Q., W.B. Sun, and P. Yang, 1999: "Modeling of Scattering and Absorption by Nonspherical Cirrus Ice Particles at Thermal Infrared Wavelengths," J. Atmos. Sci. 56(16): 2937-2947. We examined a number of commonly used methods for the calculation of the scattering and absorption properties of nonspherical ice crystals at thermal infrared wavelengths. It is found that, for randomly oriented nonspherical particles, Mie theory using equivalent ice spheres tends to overestimate the absorption efficiency while the anomalous diffraction

324

Research Highlight  

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Modification of the Atmospheric Boundary Layer by a Small Island: Modification of the Atmospheric Boundary Layer by a Small Island: Observations from Nauru Submitter: Long, C. N., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: Matthews, S., J. M. Hacker, J. Cole, J. Hare, C. N. Long, and R. M. Reynolds, (2007): Modification of the atmospheric boundary layer by a small island: observations from Nauru, MWR, Vol. 135, No. 3, pages 891–905. Figure 1. Illustration of daytime heating producing a thermal internal boundary layer effect over Nauru, which in turn produces cumulous clouds above the boundary layer. Figure 2. Illustration of Nauru heat-island produced by convective rolls forming cloud streets. Figure 3. Satellite images of Nauru on December 13, 2000 showing the cloud

325

Research Highlight  

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Progress Towards Climate Projections of Central U.S. Rainfall Using a Progress Towards Climate Projections of Central U.S. Rainfall Using a Global Model with Embedded Explicit Convection Download a printable PDF Submitter: Pritchard, M. S., Scripps Institution of Oceanography Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Pritchard MS, MW Moncrieff, and RC Somerville. 2011. "Orogenic propagating precipitation systems over the US in a global climate model with embedded explicit convection." Journal of the Atmospheric Sciences, 68, doi:10.1175/2011JAS3699.1. Characteristic time-longitude structure of central U.S. summer diurnal convection (35-45 N) (a) as observed in 2005 from space-borne infrared imagers, and as simulated by (b) the Community Atmosphere Model (CAM) v3.5

326

Research Highlight  

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Out with the Old, in with the New: McICA to Replace Traditional Cloud Out with the Old, in with the New: McICA to Replace Traditional Cloud Overlap Assumptions Submitter: Pincus, R., NOAA - CIRES Climate Diagnostics Center Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Modeling Journal Reference: Pincus, R., R. Hemler, and S.A. Klein, 2006: Using Stochastically Generated Subcolumns to Represent Cloud Structure in a Large-Scale Model. Mon. Wea. Rev., 134, 3644-3656. As shown by the difference between the two panels, the standard way (AM2, top panel) of mixing solar reflection and transmission differs systematically from the Independent Column Approximation approach. Because cloud-radiation interactions depend critically on the vertical amount of clouds, different assumptions about how this alignment occurs

327

Research Highlight  

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Characterizing Clouds at Arctic Atmospheric Observatories Characterizing Clouds at Arctic Atmospheric Observatories Download a printable PDF Submitter: Shupe, M., University of Colorado Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Shupe MD, VP Walden, E Eloranta, T Uttal, JR Campbell, SM Starkweather, and M Shiobara. 2011. "Clouds at Arctic atmospheric observatories, part I: occurrence and macrophysical properties." Journal of Applied Meteorology and Climatology, 50(3), 626-644. Shupe MD. 2011. "Clouds at Arctic atmospheric observatories, part II: thermodynamic phase characteristics." Journal of Applied Meteorology and Climatology, 50(3), 645-661. Figure 1: (a) Annual cycles of monthly mean cloud occurrence fraction at six Arctic atmospheric observatories. The average cloud fraction for all

328

Research Highlight  

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When It Rains, It Doesn't Always Pour When It Rains, It Doesn't Always Pour Download a printable PDF Submitter: Penide, G., Laboratoire d\\\'Optique Atmospherique Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Penide G, V Kumar, A Protat, and P May. 2013. "Statistics of drop size distribution parameters and rain rates for stratiform and convective precipitation during the North Australian wet season." Monthly Weather Review, 141(9), 10.1175 /mwr-d-12-00262.1. Measurements from the Atmospheric Radiation Measurement facility at Darwin, Australia, helped scientists determine how drop size distribution and rain rates are affected by larger-scale weather patterns. Rainfall comes in a variety of forms: mist, drizzle, showers, downpours. The type and frequency of rainfall usually depends on the season and

329

Research Highlight  

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Satellite Constraints on Cloud-Top Phase, Ice Size, and Asymmetry Parameter Satellite Constraints on Cloud-Top Phase, Ice Size, and Asymmetry Parameter over Deep Convection Download a printable PDF Submitter: van Diedenhoven, B., NASA - Goddard Institute for Space Studies Fridlind, A. M., NASA - Goddard Institute for Space Studies Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: van Diedenhoven B, AM Fridlind, AS Ackerman, and B Cairns. 2012. "Evaluation of hydrometeor phase and ice properties in cloud-resolving model simulations of tropical deep convection using radiance and polarization measurements." Journal of the Atmospheric Sciences, 69(11), doi:10.1175/JAS-D-11-0314.1. Liquid index (LI) values are directly derived from multi-directional polarized reflectances. POLDER measurements (dashed line envelop) show

330

Research Highlight  

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New Surface Albedo Data Set Enables Improved Radiative Transfer New Surface Albedo Data Set Enables Improved Radiative Transfer Calculations Download a printable PDF Submitter: McFarlane, S. A., U.S. Department of Energy Area of Research: Surface Properties Working Group(s): Cloud Life Cycle Journal Reference: McFarlane SA, K Gaustad, E Mlawer, C Long, and J Delamere. 2011. "Development of a high spectral resolution surface albedo product for the ARM Southern Great Plains central facility." Atmospheric Measurement Techniques, 4, 1713-1733. Time series of daily percent vegetation derived from MFR measurements for (top) 2001-2008 at 10-m tower, which is located over an unmanaged pasture; (middle) 2001-2004 at 25-m tower, which is located over a managed field; and (bottom) 2005-2008 at 25-m tower. The different seasonal cycles at the

331

Research Highlight  

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Parameterization of Riming Intensity and Its Impact on Ice Fall Speed Using Parameterization of Riming Intensity and Its Impact on Ice Fall Speed Using ARM Data Download a printable PDF Submitter: Lin, Y., Geophysical Fluid Dynamics Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Lin Y, DJ Leo, and BA Colle. 2011. "Parameterization of riming intensity and its impact on ice fall speed using ARM data." Monthly Weather Review, 139(3), 10.1175/2010MWR3299.1. (a) Scatter plot of the observed Doppler velocities from the MMCR against the ice fall velocities derived using the Heymsfield and Donner (1990) formula. (b) Same as (a), but shows the ice fall velocities derived using Eq. 4 with RMF_para. Annual long-term mean precipitation in mm day-1 for: (a) GPCPv2, (b) CTL

332

Research Highlight  

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Can Ice-Nucleating Aerosols Affect Arctic Seasonal Climate? Can Ice-Nucleating Aerosols Affect Arctic Seasonal Climate? Submitter: Prenni, A. J., Colorado State University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Prenni, A. J., J. Y. Harrington, M. Tjernstrom, P. J. DeMott, A. Avramov, C. N. Long, S. M. Kreidenweis, P. Q. Olsson, and J. Verlinde, (2006): Can Ice-Nucleating Aerosols Affect Arctic Seasonal Climate?, BAMS, Vol.88, Iss. 4; pg. 541-550. ACIA, 2004: Impacts of a Warming Arctic: Arctic Climate Impact Assessment. Cambridge University Press, 1020pp. Additional Key Contact: Long, C. N. , Pacific Northwest National Laboratory Figure 1. Time series for the 2-day simulation plotted over Oliktok Point for Standard IN and M-PACE IN concentrations: (a) liquid water path (g

333

Research Highlight  

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Tropical Radiosonde Comparisons May Improve Past and Present Humidity Data Tropical Radiosonde Comparisons May Improve Past and Present Humidity Data Submitter: Westwater, E. R., University of Colorado Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: Westwater, E.R., B.B. Stankov, D.Cimini, Y. Han, J.A. Shaw, B.M. Lesht, C.N. Long, 2003, Radiosonde Humidity Soundings and Microwave Radiometers during Nauru99, Journal of Atmospheric and Oceanic Technology, Vol. 21. ARM's Nauru99 campaign provided a rare opportunity to compare original and corrected land-based radiosonde temperature and humidity measurements with those obtained at sea. (ARM photo) Key Contributors: B. B. Stankov, D. Cimini, Y. Han, J. A Shaw, B. M. Lesht, C. N. Long Along the equator in the Central Pacific, DOE's Atmospheric Radiation

334

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Looking at the Full Spectrum for Water Vapor Looking at the Full Spectrum for Water Vapor Download a printable PDF Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Mlawer EJ, VH Payne, J Moncet, JS Delamere, MJ Alvarado, and DD Tobin. 2012. "Development and recent evaluation of the MT_CKD model of continuum absorption." Philosophical Transactions of The Royal Society A, 370, doi: 10.1098/rsta.2011.0295. Radiative cooling across the full infrared spectrum: The far-infrared (the left half of the figure, from 15 to 1000 microns) plays a key role in heat transfer in the atmosphere, but scientists could not measure it, and model calculations were consequently very uncertain. Field observations from

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Validating Single Column Models with ARM Data Validating Single Column Models with ARM Data Submitter: Somerville, R. C., Scripps Institution of Oceanography Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Iacobellis, S.F., McFarquhar, G.M., Mitchell, D.L., and Somerville, R.C.J., 2003: "The Sensitivity of Radiative Fluxes to Parameterized Cloud Microphysics," J. Climate 16(18): 2979-2996. Scientists validated the results of both models by comparing them with the solar radiation as measured by the ARM instruments in the same grid cell. Scientists compared predictions of two models (red and blue lines) with measurements taken by ARM instruments (yellow line) at the same location. The models predict the amount and optical properties of clouds and the

336

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Critical Evaluation of the ICARUS Portion of the ISCCP Simulator Using ARM Critical Evaluation of the ICARUS Portion of the ISCCP Simulator Using ARM Data Download a printable PDF Submitter: Mace, G., Utah State University Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Mace GG, S Houser, S Benson, SA Klein, and QL Min. 2011. "Critical evaluation of the ISCCP simulator using ground-based remote sensing data." Journal of Climate, 24(6), doi:10.1175/2010JCLI3517.1. Figure 1. Comparison of actual cloud top pressure from ARM remote sensors compared to ISCCP (top) and after the ICARUS algorithm has been used to convert the measured cloud top pressures to ISCCP-like quantities (bottom). Figure 2. Comparison of various measures of optical depth. Top left shows

337

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Cloud Tomography: a Novel Method for Determining 3D Cloud Liquid Water Cloud Tomography: a Novel Method for Determining 3D Cloud Liquid Water Distribution Download a printable PDF Submitter: Wiscombe, W. J., Brookhaven National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Huang, D., Y. Liu, and W. Wiscombe, 2007a: Determination of cloud liquid water distribution using 3D cloud tomography. J. Geophys. Res., submitted. Cloud tomography is a novel method for determining cloud water distribution by measuring cloud microwave emission from multiple directions. The upper plot shows a 2D cross-sectional snapshot of the liquid water structure of a stratocumulus cloud simulated by a large-eddy model. It also shows the four scanning microwave radiometers used to retrieve the cloud liquid water

338

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Quantifying the Number of Independent Pieces of Information in Profiles Quantifying the Number of Independent Pieces of Information in Profiles Download a printable PDF Submitter: Crewell, S., University of Cologne Loehnert, U., University of Cologne Turner, D. D., National Oceanic and Atmospheric Administration Ebell, K., University of Cologne Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Radiative Processes Journal Reference: Lohnert U, DD Turner, and S Crewell. 2009. "Ground-based temperature and humidity profiling using spectral infrared and microwave observations. Part I: Simulated retrieval performance in clear-sky conditions." Journal of Applied Meteorology and Climatology, 48(5), 1017-1032. Crewell S, K Ebell, U Loehnert, and DD Turner. 2009. "Can liquid water profiles be retrieved from passive microwave zenith observations?"

339

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Modeling Cloud Forcing in the Tropical West Pacific Modeling Cloud Forcing in the Tropical West Pacific Submitter: Kiehl, J., NCAR Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Petch, J.C., and J.T. Kiehl, 1997: "Investigating Cloud Radiative Forcing in the Tropical West Pacific Using a Single Column Model." In Proceedings from the Seventh ARM Science Team Meeting, U.S. Department of Energy, Washington, D.C. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Here is summary of the poster "Investigating Cloud Radiative Forcing in the Tropical West Pacific Using a Single Column Model" (Petch and Kiehl) presented at the ARM 7th Science Team Meeting in San Antonio, Texas, March 1997. SCCM3, a single-column version of CCM3, has been forced with TOGA-COARE

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"Roobik" Is Part of the Answer, Not a Puzzle "Roobik" Is Part of the Answer, Not a Puzzle Submitter: Turner, D. D., National Oceanic and Atmospheric Administration Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: N/A Taking place during the arid Arctic winter, the RHUBC will obtain measurements in the far-infrared (15-40 microns), when the so-called "Arctic" infrared window between 16 and 40 microns is semi-transparent. Between February and March 2007 at the ACRF North Slope of Alaska site in Barrow, high-spectral-resolution observations will be collected by three state-of-the-art Fourier Transform Spectrometers sampling at different bands in the far-infrared. The Radiative Heating in Underexplored Bands Campaign, or RHUBC (pronounced "roobik"), will make detailed observations

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While these samples are representative of the content of NLEBeta,
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341

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Determining the Future of CO2 Using an Earth System Model Determining the Future of CO2 Using an Earth System Model Download a printable PDF Submitter: Keppel-Aleks, G., University of Michigan Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Aerosol Life Cycle Journal Reference: Keppel-Aleks G, JT Randerson, K Lindsay, BB Stephens, JK Moore, SC Doney, PE Thornton, NM Mahowald, FM Hoffman, C Sweeney, PP Tans, PO Wennberg, and SC Wofsy. 2013. "Atmospheric carbon dioxide variability in the Community Earth System Model: evaluation and transient dynamics during the twentieth and twenty-first centuries." Journal of Climate, 26(13), doi:10.1175/JCLI-D-12-00589.1. How models, such as the Community Earth System Model, simulate the amount of CO2 in the atmosphere will likely hold the key to monitoring climate

342

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Tropical Clouds: from Jekyll to Hyde Tropical Clouds: from Jekyll to Hyde Submitter: Hagos, S. M., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Hagos SM and R Leung. 2012. "Large-scale environmental variables and transition to deep convection in cloud resolving model simulations: A vector representation." Journal of Advances in Modeling Earth Systems, 4(M11001), 2012MS000155, doi:10.1029/2012MS000155. The relationship between the mean 400hPa heating (Khr-1437 ) at time = 0 and the projection onto the favorable large-scale moisture profile at time = -1 hr. From Jekyll to Hyde, this anvil cloud is an example of tropical clouds that evolve from fair-weather to stormy. Scientists at PNNL used observational

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Mixed-Phase Cloud Radiative Properties from M-PACE Microphysical Retrievals Mixed-Phase Cloud Radiative Properties from M-PACE Microphysical Retrievals Download a printable PDF Submitter: de Boer, G., University of Colorado, Boulder/CIRES Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: de Boer G, WD Collins, S Menon, and CN Long. 2011. "Using surface remote sensors to derive radiative characteristics of mixed-phase clouds: An example from M-PACE." Atmospheric Chemistry and Physics, 11, doi: 10.5194/acp-11-11937-2011. Measured and retrieved cloud properties on 10 October 2004. Included are (top to bottom) AHSRL bacscatter cross-section, AHSRL depolarization ratio, MMCR reflectivity, and profiles of liquid water content (LWC), ice water content (IWC), and liquid (r_{e,liq}) and ice (r$_{e,ice}$) effective

344

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Profiling Capability of High-Resolution Oxygen A-band Spectroscopy for Profiling Capability of High-Resolution Oxygen A-band Spectroscopy for Stratus Cloud Cover Submitter: Davis, A. B., Jet Propulsion Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Davis AB, IN Polonsky, and A Marshak. 2009. Space-Time Green Functions for Diffusive Radiation Transport, in Application to Active and Passive Cloud Probing. In Light Scattering Reviews, Volume 4, pp. 169-292. Ed. by A.A. Kohkanovsky, Heidelberg, Germany: Springer. Transmission: (a) Ratio of mean path Τ to cloud thickness Η times (1-g)τ plotted versus cosine of SZA μ0 and cloud optical depth τ; asymmetry factor g was set to 0.85, then delta-rescaled to 0.46. Given this ratio (>1/2) and Η or τ, one can infer the other cloud parameter.

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Satellite Retrievals of Mixed-phase Cloud Properties Satellite Retrievals of Mixed-phase Cloud Properties Download a printable PDF Submitter: Ou, S., University of California, Los Angeles Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Ou SS, KN Liou, XJ Wang, A Dybdahl, M Mussetto, LD Carey, J Niu, JA Kankiewicz, S Kidder, and TH Von der Haar. 2009. "Retrievals of mixed-phase cloud properties during the National Polar-Orbiting Operational Environmental Satellite System." Applied Optics, 48(8), 1452-1462. Images of mixed-phase retrieved (a) Ï„i, (b) De, (c) Ï„w, and (d) re for the Terra/MODIS scene of 14 October 2001 over North Platte, Nebraska. Also shown are (e) retrieved Ï„i and Ï„w versus MODIS Ï„ within the pink box and (f) retrieved De and re versus MODIS re within the pink box.

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Buffering of Ice Crystal Number Concentration to Ice Nucleus Abundance Buffering of Ice Crystal Number Concentration to Ice Nucleus Abundance Above Arctic Stratus Download a printable PDF Submitter: Fridlind, A. M., NASA - Goddard Institute for Space Studies Ackerman, A., NASA - Goddard Institute for Space Studies Area of Research: Cloud Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Fridlind AM, B van Diedenhoven, AS Ackerman, A Avramov, A Mrowiec, H Morrison, P Zuidema, and MD Shupe. 2012. "A FIRE-ACE/SHEBA case study of mixed-phase Arctic boundary-layer clouds: Entrainment rate limitations on rapid primary ice nucleation processes." Journal of the Atmospheric Sciences, 69(1), doi:10.1175/JAS-D-11-052.1. Observed and simulated histograms of MMCR radar reflectivity (left) and

347

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Ground-Based Cloud Measurements Utilized to Evaluate the Simulation of Ground-Based Cloud Measurements Utilized to Evaluate the Simulation of Arctic Clouds in CCSM4 Download a printable PDF Submitter: de Boer, G., University of Colorado, Boulder/CIRES Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: de Boer G, W Chapman, JE Kay, B Medeiros, MD Shupe, S Vavrus, and JE Walsh. 2011. "A characterization of the present-day Arctic atmosphere in CCSM4." Journal of Climate, 25(8), doi:10.1175/JCLI-D-11-00228.1. Time-height cross-sections of simulated (top) and observed (second row) cloud phase at Barrow, Alaska. The difference between the frequencies of occurrence of each phase is indicated in the third row. Monthly distributions of liquid (dark) and ice (light) water paths at

348

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Modeled Compared to Measured O:C and H:C Elemental Ratios of Secondary Modeled Compared to Measured O:C and H:C Elemental Ratios of Secondary Organic Material Download a printable PDF Submitter: Martin, S., Pierce Hall School of Engineering and Applied Sciences Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Chen Q, Y Liu, N Donahue, J Shilling, and S Martin. 2011. "Particle-phase chemistry of secondary organic material: modeled compared to measured O:C and H:C elemental ratios provide constraints." Environmental Science & Technology, , 10.1021/es104398s. Figure 1. Measurements and predictions. The first row shows particle mass yields at 298 K. The second row shows the modeled and measured particle-average O:C and H:C ratios for increasing particle mass concentrations.

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Spectral Invariant Properties of Single-Scattering Albedo for Water Spectral Invariant Properties of Single-Scattering Albedo for Water Droplets and Ice Crystals Download a printable PDF Submitter: Marshak, A., NASA - Goddard Space Flight Center Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Marshak A, Y Knyazikhin, JC Chiu, and WJ Wiscombe. 2012. "On spectral invariance of single scattering albedo for water droplets and ice crystals at weakly absorbing wavelengths." Journal of Quantitative Spectroscopy & Radiative Transfer, 113, 715-720. The ratio of ω0λ(r)/ω0λ(r0) plotted against ω0λ(r) for four wavelengths, λ=0.86, 1.65, 2.13 and 3.75 um. An example for the aggregates ice crystal habits is shown (see Yang et al. 2000. "Parameterization of

350

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Self-Regulation Strikes a Balance Between Hydrological Cycle, Radiation Self-Regulation Strikes a Balance Between Hydrological Cycle, Radiation Processes, and Intraseasonal Dynamic Variations Submitter: Stephens, G. L., Colorado State University Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: Stephens, Graeme L., Webster, Peter J., Johnson, Richard H., Engelen, Richard, L'Ecuyer, Tristan. 2004: Observational Evidence for the Mutual Regulation of the Tropical Hydrological Cycle and Tropical Sea Surface Temperatures. Journal of Climate: Vol. 17, No. 11, pp. 2213-2224. The "humidistat" feedback mechanism suggests that the hydrological cycle and sea surface temperatures mutually regulate each other in phases: the destabilization phase, the convective phase, and the restoring phase. These

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Unique Properties of the Arctic Stratiform Cloud-Top Region Unique Properties of the Arctic Stratiform Cloud-Top Region Submitter: Shupe, M., University of Colorado Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Sedlar J, MD Shupe, and M Tjernström. 2011. "On the relationship between thermodynamic structure and cloud top, and its climate significance in the Arctic." Journal of Climate, 25(7), doi:10.1175/JCLI-D-11-00186.1. Occurrence frequency of low-level, stratiform cloud cases used in the analysis (black), percentage of these cases where the cloud top was identified to occur within the inversion (CII, gray), and percentage where the cloud top was observed to be capped by the inversion (CCI, white) for the ASCOS, SHEBA, and Barrow locations. The total number of cases analyzed

352

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First Measurements of Neutral Atmospheric Cluster and 1-2 Nm Particle First Measurements of Neutral Atmospheric Cluster and 1-2 Nm Particle Number Distributions During Nucleation Events Download a printable PDF Submitter: McMurry, P. ., University of Minnesota Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Jiang J, J Zhao, M Chen, J Scheckman, BJ Williams, FL Eisele, and PH McMurry. 2011. "First measurements of neutral atmospheric cluster and 1-2 nm particle number distributions during nucleation events." Aerosol Science and Technology, 45, doi:10.1080/02786826.2010.546817. Jiang J, M Chen, C Kuang, M Attoui, and PH McMurry. 2011. "Electrical mobility spectrometer using a diethylene glycol condensation particle counter for measurement of aerosol size distributions down to 1 nm."

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Integrated Water Vapor and Cloud Liquid Water at MCTEX Integrated Water Vapor and Cloud Liquid Water at MCTEX Submitter: Liljegren, J. C., Argonne National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: N/A Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Integrated water vapor and cloud liquid water measurements were obtained during the Maritime Continent Thunderstorm Experiment (MCTEX) by Eugene Clothiaux and Tom Ackerman of Penn State University using an ARM microwave radiometer. The radiometer was deployed at Pularumpi, Melville Island (11.55 S, 130.56 E) off the north coast of Australia for November-December 1995. Time series of these results are shown in Figure 1. Time series of integrated or "precipitable" water vapor (PWV) and liquid

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Dynamics and Atmospheric State on Cloud Vertical Overlap Dynamics and Atmospheric State on Cloud Vertical Overlap Download a printable PDF Submitter: Naud, C. M., Columbia University/NASA Goddard Institute for Space Studies Del Genio, A. D., NASA Mace, G., Utah State University Benson, S., Utah State University Clothiaux, E. E., Pennsylvania State University Kollias, P., McGill University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Naud, C, A Del Genio, GG Mace, S Benson, EE Clothiaux, and P Kollias. "Impact of dynamics and atmospheric state on cloud vertical overlap." Journal of Climate 218: 1758-1770. Mean overlap parameter α as a function of separation: (a,b) at SGP for all winter months of 2002-2004 and for 4 subsets of increasing 500 mb ω such

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Addressing the "Light Precipitation Problem" in the ECMWF Global Model Addressing the "Light Precipitation Problem" in the ECMWF Global Model Download a printable PDF Submitter: Ahlgrimm, M., European Centre for Medium-Range Weather Forecasts Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Ahlgrimm M and R Forbes. 2013. "Improving the representation of low clouds and drizzle in the ECMWF model based on ARM observations from the Azores." Monthly Weather Review, , . ACCEPTED. Monthly mean cloud and precipitation occurrence from observations (red), the control version of the single column model (green) and the SCM experiment (blue). (a) Total cloud occurrence. (b) Low cloud (solid) and deep boundary layer (dashed) cloud occurrence. (c) Precipitation occurrence

356

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Production Flux of Sea-Spray Aerosol Production Flux of Sea-Spray Aerosol Download a printable PDF Submitter: Schwartz, S. E., Brookhaven National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: de Leeuw G, EL Andreas, MD Anguelova, ER Lewis, C O'Dowd, M Schulz, and SE Schwartz. 2011. "Production flux of sea-spray aerosol." Reviews of Geophysics, 49, RG2001, doi:10.1029/2010RG000349. Lewis ER and SE Schwartz. 2004. Sea Salt Aerosol Production: Mechanisms, Methods, Measurements, and Models-A Critical Review. Washington DC: American Geophysical Union. Parameterizations of size-dependent SSA production flux evaluated for wind speed U10 = 8 m s-1. Also, central values (curves) and associated uncertainty ranges (bands) from Lewis and Schwartz (2004). Abscissa denotes

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Multifractal Analysis of Radiation in Clouds: 5000km to 50cm Multifractal Analysis of Radiation in Clouds: 5000km to 50cm Submitter: Lovejoy, S., McGill University Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: Lovejoy, S., D. Schertzer, J. D. Stanway, 2001: "Direct Evidence of planetary scale atmospheric cascade dynamics," Phys. Rev. Lett. 86(22): 5200-5203. Left: Power spectrum of the 5 different aircraft measured liquid water data sets from the FIRE experiment (averaged over 10 equally logarithmically spaced points on the k-axis and vertically offset). The absolute slopes with Î’ = 1.45 is indicated (straight line on top of graph) for reference. The number of sets used to compute the average from top to bottom: 4, 3, 1, 2, 5. A constant aircraft speed of 100m/s has been assumed. Right: Ensemble

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A Tall Order: Climate Models Fall Short in Predicting African Sahel A Tall Order: Climate Models Fall Short in Predicting African Sahel Rainfall Download a printable PDF Submitter: Roehrig, R., Meteo-France CNRM/GMME/MOANA Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Roehrig R, D Bouniol, F Guichard, F Hourdin, and JL Redelsperger. 2013. "The present and future of the West African Monsoon: A process-oriented assessment of CMIP5 simulations along the AMMA transect." Journal of Climate, 26(17), doi:10.1175/jcli-d-12-00505.1. The wealth of data available from field campaigns between the Gulf of Guinea and the Sahara Desert allowed scientists to evaluate the ability of climate models to accurately predict rainfall in the area.

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Indirect Impact of Atmospheric Aerosols on an Ensemble of Deep Convective Indirect Impact of Atmospheric Aerosols on an Ensemble of Deep Convective Clouds Download a printable PDF Submitter: Grabowski, W., NCAR Morrison, H. C., NCAR Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Grabowski WW and H Morrison. 2011. "Indirect impact of atmospheric aerosols in idealized simulations of convective-radiative quasi-equilibrium. Part II: Double-moment microphysics." Journal of Climate, 24, 1897-1912. This paper extends the previous cloud-resolving modeling study concerning the impact of cloud microphysics on convective-radiative quasi-equilibrium (CRQE) over a surface with fixed characteristics and prescribed solar input, both mimicking the mean conditions on Earth. The current study

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Retrieving Cloud Characteristics from Ground-Based Daytime Color All-Sky Retrieving Cloud Characteristics from Ground-Based Daytime Color All-Sky Images Submitter: Long, C. N., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Long, C. N., J. M. Sabburg, J. Calbo, and D. Pages, (2006): Retrieving Cloud Characteristics from Ground-based Daytime Color All-sky Images, JTech, 23, No. 5, 633–652. Long, C. N., J. M. Sabburg, J. Calbo, and D. Pages, (2006): Papers of Note: Retrieving Cloud Characteristics from Ground-based Daytime Color All-sky Images, BAMS, 87, No. 6, 743–744. Figure 1. Sky image (left) from 1300 LST Sept 4, 2004, and corresponding cloud decision image (right) denoting originally retrieved clear sky (blue), thin cloud (gray), and opaque cloud (white). Black denotes masked

Note: This page contains sample records for the topic "research estimated crustal" 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

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Weather Forecasting in the Tropics with Climate Models Is Feasible Weather Forecasting in the Tropics with Climate Models Is Feasible Submitter: Boyle, J., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Climate Model Forecast Experiments for TOGA-COARE. J. Boyle,S. Klein,G. Zhang,S. Xie,X. Wei. Accepted by Monthly Weather Review Figure 1. Profiles of the apparent heat source (Q1) at the TOGA-COARE central site for the observations and day-two forecasts of the CAM, CAM with Zhang modification (ZMO), and AM2 averaged over the entire TOGA-COARE period are shown. Units are degrees Kelvin day. The CAM with the Zhang modified deep convection produced the best fit to the observations. Proper simulation of both the magnitude and level of maximum heating were shown to

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Data from DOE Atmospheric Radiation Measurement Program Allows Evaluation Data from DOE Atmospheric Radiation Measurement Program Allows Evaluation of Surface Models Submitter: Robock, A., Rutgers University Area of Research: Surface Properties Working Group(s): Cloud Modeling Journal Reference: Robock, A., Luo, L., Wood, E. F., Wen, F., Mitchell, K. E., Houser, P. R., Schaake, J. C., Lohmann, D., Cosgrove, B., Sheffield, J., Duan, Q., Higgins, R. W., Pinker, R. T., Tarpley, J. D., Basara, J. D., Crawford, K. C., Evaluation of the North American Land Data Assimilation System over the Southern Great Plains during the warm season, J. Geophys. Res., 108(D22), 8846, doi:10.1029/2002JD003245, 2003 An example of the model discrepancies is shown in a comparison of monthly mean diurnal cycle data from July 1999 at the ARM Southern Great Plains

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New Insights Into Deep Convective Core Vertical Velocities Using ARM UHF New Insights Into Deep Convective Core Vertical Velocities Using ARM UHF Wind Profilers Download a printable PDF Submitter: Giangrande, S., Brookhaven National Laboratory Area of Research: Vertical Velocity Working Group(s): Cloud Life Cycle Journal Reference: Giangrande SE, S Collis, J Straka, A Protat, C Williams, and S Krueger. 2013. "A summary of convective core vertical velocity properties using ARM UHF wind profilers in Oklahoma." Journal of Applied Meteorology and Climatology, , . ACCEPTED. ARM UHF profiler observations of reflectivity Z (top) and retrieved storm vertical velocity (bottom); overlaid contours bound regions of updrafts greater than 1.5 m/s. Summary median (diamond), 90th (triangle), and 95th (star) percentile data set properties of Oklahoma convective core updrafts including: (A)

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The Significance of Multilayer Cloud Systems in Tropical Convection The Significance of Multilayer Cloud Systems in Tropical Convection Download a printable PDF Submitter: Stephens, G. L., Colorado State University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Stephens, GL, and NB Wood. 2007. "Properties of tropical convection observed by millimeter-wave radar systems." Monthly Weather Review 135: 821-842. Storm classifications (derived from k-means clustering analysis) applied to MWR observations from (a) Manus during MJO, (b) Manus during MJO transition, (c) Indian Ocean (JASMINE experiment) during monsoon, and (d) tropical convection off the Florida coast (CRYSTAL-FACE experiment) of cloud and precipitation echo top heights. The relative frequencies of

365

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The Role of Microphysics Parameterization in Simulating Tropical Mesoscale The Role of Microphysics Parameterization in Simulating Tropical Mesoscale Convective Systems Download a printable PDF Submitter: Van Weverberg, K., Brookhaven National Laboratory Vogelmann, A. M., Brookhaven National Laboratory Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Van Weverberg K, AM Vogelmann, W Lin, EP Luke, AT Cialella, P Minnis, MM Khaiyer, ER Boer, and MP Jensen. 2013. "The role of cloud microphysics parameterization in the simulation of mesoscale convective system clouds and precipitation in the Tropical Western Pacific." Journal of the Atmospheric Sciences, 70(4), doi:10.1175/JAS-D-12-0104.1. The spatial distribution of cloud types at 3 UTC on 27 December 2003 as observed by GOES-9 and as simulated by the three commonly used microphysics

366

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Spectrally Invariant Approximation Within Atmospheric Radiative Transfer Spectrally Invariant Approximation Within Atmospheric Radiative Transfer Download a printable PDF Submitter: Marshak, A., NASA - Goddard Space Flight Center Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Marshak A, Y Knyazikhin, JC Chiu, and WJ Wiscombe. 2011. "Spectrally-invariant approximation within atmospheric radiative transfer." Journal of the Atmospheric Sciences, 68(12), doi:10.1175/JAS-D-11-060.1. Ratio of reflectance Rλ plus transmittance Tλ over single scattering albedo ω0λ plotted against the sum Rλ+Tλ for two cloud optical depths: 5 and 10. The aerosol optical depth at 0.55 μm is 0.2 (rural type of aerosol). Different dots correspond to different wavelengths from 0.4 to

367

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Observational Evidence of Changes in Water Vapor, Clouds, and Radiation Observational Evidence of Changes in Water Vapor, Clouds, and Radiation Submitter: Dong, X., University of North Dakota Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Dong, X., B. Xi, and P. Minnis, 2006: Observational Evidence of Changes in Water vapor, Clouds, and Radiation at the ARM SGP site. Geophys. Res. Lett., 33, L19818,doi:10.1029/2006GL027132. Figure 1. This plot shows that atmospheric precipitable water vapor and downwelling infrared radiation decreased, but solar radiation increased at the SGP site from 1997 to 2004. The amount of water vapor, the dominant greenhouse gas, has a greater effect on infrared radiation than on solar. Figure 2. This plot shows that solar radiation at the surface increased

368

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Cirrus Cloud Bimodal Size Distributions from ARM Remote Sensing Data Cirrus Cloud Bimodal Size Distributions from ARM Remote Sensing Data Download a printable PDF Submitter: Mace, G., Utah State University Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Zhao Y, GG Mace, and JM Comstock. 2011. "The occurrence of particle size distribution bimodality in midlatitude cirrus as inferred from ground-based remote sensing data." Journal of the Atmospheric Sciences, 68(6), doi:10.1175/2010JAS3354.1. Figure 1. Frequency distribution of ice water content (top), effective radius (middle), and crystal concentration (bottom) derived from 313 h of cloud property retrievals using the bimodal algorithm. The distributions are shown as a function of the layer-mean temperature shown in the legend.

369

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Surface Characterization Data for the ARM SGP CART Site Surface Characterization Data for the ARM SGP CART Site Submitter: Cialella, A. T., Brookhaven National Laboratory Area of Research: Surface Properties Journal Reference: N/A Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 The ARM External Data Center (XDC) is continually searching for surface characterization data for the ARM CART sites. These data can provide a better understanding of geophysical parameters, allowing for more accurate parameterization within General Circulation Models (GCMs), thus improving their preditive power. Below are a sample of surface characterization data available and their sources: The land use/land cover map above was provided by Oklahoma State University (Figure 1). Eighty-eight covertypes, interpreted from county orthophotos, were generalized to 25 cover types. The resolution of the data is 200m by

370

Research Highlight  

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Cloud Regimes in the TWP and Their Evolution over the MJO Cloud Regimes in the TWP and Their Evolution over the MJO Download a printable PDF Submitter: Del Genio, A. D., NASA Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Chen, Y, and AD Del Genio. 2008. "Evaluation of tropical cloud regimes in observations and a general circulation model." Climate Dynamics doi:10.1007/s00382-008-0386-6. Mean highest cloud-top vertical profiles from ARSCL (solid) and ISCCP (dashed) for each ISCCP cloud regime at Manus. Relative frequency of occurrence of each cloud regime as a function of lag in pentads relative to the MJO peak for eight MJO events covering November-April of 1999-2003. Red = deep convective, orange = anvil, yellow = congestus, green = thin cirrus, blue = shallow cumulus, violet =

371

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Improved Simulation of Boundary Layer Clouds Improved Simulation of Boundary Layer Clouds Submitter: Ghan, S. J., Pacific Northwest National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: N/A Figure 1. Comparison of Boundary Layer Clouds Schemes in Climate Models with Satellite Observations Key Contributors: James McCaa, as part of his Ph.D. dissertation at University of Washington Chris Bretherton, University of Washington Dennis Hartmann, University of Washington Steven Ghan, Pacific Northwest National Laboratory Marine boundary layer clouds are among the most difficult clouds to represent in climate models. A team of atmospheric scientists from the University of Washington (UW) and the Pacific Northwest National Laboratory

372

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Influence of Humidified Aerosols on Lidar Depolarization Below Influence of Humidified Aerosols on Lidar Depolarization Below Ice-Precipitating Arctic Clouds Download a printable PDF Submitter: Fridlind, A. M., NASA - Goddard Institute for Space Studies van Diedenhoven, B., NASA - Goddard Institute for Space Studies Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: van Diedenhoven B, AM Fridlind, and AS Ackerman. 2011. "Influence of humidified aerosol on lidar depolarization measurements below ice-precipitating Arctic stratus." Journal of Applied Meteorology and Climatology, 50(10), doi:10.1175/JAMC-D-11-037.1. Correlated MMCR radar reflectivities and DABUL lidar depolarizations below cloud base calculated with a reasonably low number of large, coarse-mode

373

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Vertical Air Motion Measurements in Large-Scale Precipitation Vertical Air Motion Measurements in Large-Scale Precipitation Download a printable PDF Submitter: Giangrande, S., Brookhaven National Laboratory Luke, E., Brookhaven National Laboratory Kollias, P., McGill University Area of Research: Vertical Velocity Working Group(s): Cloud Properties Journal Reference: Giangrande SE, EP Luke, and P Kollias. 2010. "Automated retrievals of precipitation parameters using non-Rayleigh scattering at 95-GHz." Journal of Atmospheric and Oceanic Technology, 27(9), 10.1175/2010JTECHA1343.1. Time-height mapping of the retrieved vertical air motion for the 1 May 2007 event at SGP. Simultaneous measurements of vertical air motion and raindrop size distribution parameters in precipitation are challenging. The ARM W-band radars (95-GHz), despite being used primarily for cloud sensing, offer

374

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An Affordable, Flexible, and More Accurate Method for Computing Radiative An Affordable, Flexible, and More Accurate Method for Computing Radiative Transfer Submitter: Pincus, R., NOAA - CIRES Climate Diagnostics Center Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Pincus, R., H.W. Barker, J.J. Morcrette, A fast, flexible approximate technique for computing radiative transfer in inhomogenous cloud fields, J. Geophys. Res., Vol. 108, No. D13, 4376, doi:10.1029/2002JD003322, 2003 Key Contributors: H.W. Barker, J.J. Morcrette Cloud radiative feedback-the amount of solar radiation that is absorbed by clouds before it reaches the earth and bounces back into the atmosphere-is the single most important effect determining the magnitude of possible climate responses to human activity. However, cloud properties

375

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Data from Saharan Dust Storm Reveal Model Deficiencies Data from Saharan Dust Storm Reveal Model Deficiencies Submitter: McFarlane, S. A., U.S. Department of Energy Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Slingo, A., T.P. Ackerman, R.P. Allan, E.I. Kassianov, S.A. McFarlane, G.J. Robinson, J.C. Barnard, M.A. Miller, J.E. Harries, J.E. Russell , S. Dewitte, 2006: Observations of the impact of a major Saharan dust storm on the Earth's radiation budget. Geophys. Res. Lett., 33, L24817, doi:10.1029/2006GL027869. In March 2006, the ARM Mobile Facility recorded the strongest Saharan dust storm to reach the Niamey area in two years. The storm lasted several days, and visibility was reduced to 15 percent of normal. Observations (solid lines and star symbols) and results from two models

376

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Statistics of Vertical Velocities from Monsoonal Convection with Statistics of Vertical Velocities from Monsoonal Convection with Verification Download a printable PDF Submitter: Collis, S. M., Argonne National Laboratory Area of Research: Vertical Velocity Working Group(s): Cloud Life Cycle Journal Reference: Collis S, A Protat, PT May, and C Williams. 2013. "Statistics of storm updraft velocities from TWP-ICE including verification with profiling measurements." Journal of Applied Meteorology and Climatology, 52(8), 10.1175/jamc-d-12-0230.1. A scatter plot of profiler-derived vertical velocities versus the scanning radar-retrieved vertical velocities. Dots represent minimum values, triangles represent mean values, and diamonds represent maximum values. The solid line is a fit to all maximum, mean, and minimum values, while the

377

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Sub-Grid Scale Cloud Variability Affects Vertical Structure of Clouds and Sub-Grid Scale Cloud Variability Affects Vertical Structure of Clouds and Radiative Heating Submitter: McFarlane, S. A., U.S. Department of Energy Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: McFarlane, S. A., J. H. Mather, and T. P. Ackerman (2007), Analysis of tropical radiative heating profiles: A comparison of models and observations, J. Geophys. Res., 112, D14218, doi:10.1029/2006JD008290. Comparison of the distributions of cloud condensate for the ACRF TWP site at Manus using a) retrievals from the ACRF remote sensors, b) the CAM, c) all MMF columns, and d) MMF columns that do not contain precipitation. Note that the ARM observations do not include precipitation. Each panel consists

378

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Splitting the Solar Spectrum: Sometimes Less Is Better Than More Splitting the Solar Spectrum: Sometimes Less Is Better Than More Submitter: Pawlak, D. T., Pennsylvania State University Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Pawlak, DT, EJ Clothiaux, MF Modest, and JNS Cole. 2004. Full-Spectrum Correlated-k Distribution for Shortwave Atmospheric Radiative Transfer. Journal of the Atmospheric Sciences 61: 2588-2601. Of all the physical and dynamical calculations required in numerical weather prediction and climate modeling, radiation calculations consume the most computational time. This is because the radiation transfer physics of the atmosphere involve molecular absorption that occurs in narrowly defined absorption bands of the electromagnetic spectrum. The exact location in the

379

Research Highlight  

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Detangling Convective Oscillations at ARM Tropical Western Pacific Site: Detangling Convective Oscillations at ARM Tropical Western Pacific Site: Manus Submitter: Wang, Y., Department of Geography Long, C. N., Pacific Northwest National Laboratory Mather, J. H., Pacific Northwest National Laboratory Liu, X., Institute of Earth Environment Area of Research: Radiation Processes Working Group(s): Cloud Properties Journal Reference: Wang Y, C Long, J Mather, and X Liu. 2010. "Convective signals from surface measurements at ARM Tropical Western Pacific site: Manus." Climate Dynamics, , doi:10.1007/s00382-009-0736-z. Figure 1: (A) The time series includes the clear-sky shortwave (SW) flux (blue) and the all-sky SW flux (black) over Manus. The green line indicates a 60-day running mean. (B) Wavelet power (WP) of CRF (color shading) with

380

Research Highlight  

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A Comparison of Integrated Water Vapor Sensors: WVIOP-96 A Comparison of Integrated Water Vapor Sensors: WVIOP-96 Submitter: Liljegren, J. C., Argonne National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: N/A Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 The 1996 Water Vapor Intensive Operations Period (WVIOP-96) was conducted at the SGP CART central facility in September in order to assess the skill of a wide variety of sensors in measuring atmospheric water vapor. Here we present a comparison of radiometric brightness temperatures (TB) and vertically-integrated or "precipitable" water vapor (PWV) amounts derived from eight collocated ARM microwave radiometers, as well as microwave radiometers from the NOAA Environmental Technology Laboratory

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381

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New Technique Successful for Measuring Thickness of Broken Clouds New Technique Successful for Measuring Thickness of Broken Clouds Submitter: Marshak, A., NASA - Goddard Space Flight Center Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Marshak, A, Y Knyazikhin, K.D. Evans, and W.J. Wiscomb, (2004): The "RED versus NIR" Plane to Retrieve Broken-Cloud Optical Depth from Ground-Based Measurements, Journal of Atmospheric Sciences , 61, 1911-1925. In the "lookup table," vertical lines within the curves show calculated values of cloud optical depth. Observed data points show actual RED and NIR values; the cloud cover and optical depth are read from the overlaid lines. Cloud optical depth (or thickness) is a fundamental property for calculating the amount of solar radiation entering and leaving earth's

382

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General Formulation for Representing Cloud-to-Rain Transition in General Formulation for Representing Cloud-to-Rain Transition in Atmospheric Models Submitter: Liu, Y., Brookhaven National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Aerosol, Cloud Modeling, Cloud Properties Journal Reference: Liu, Y., P. H. Daum, R. McGraw, M. Miller, and S. Niu, 2007: Theoretical formulation for autoconversion rate of cloud droplet concentration. Geophys. Res. Lett., 34, L116821, doi:10.1029/2007GL030389 Figure 1. The typical drop radius r* as a function of the volume-mean radius r3 derived from the new theoretical formulation. Note that a constant r* corresponds to the commonly used assumption that the autoconversion rate for droplet concentration is linearly proportional to

383

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Intercomparison of Longwave Radiative Heating Algorithms Intercomparison of Longwave Radiative Heating Algorithms Submitter: Baer, F., University of Maryland Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Baer, F., N. Arsky, J. J. Charney, and R. G. Ellingson. 1996. "Intercomparison of Heating Rates Generated by Global Climate Model Longwave Radiation Codes." J. Geoph. Res., 101, D21, 26589-26603. 30 levels of longwave heating rates for all algorithms tested at the five locations for the high cloud Same as Figure 1 but with the clouds removed (clear sky assumption). Same as Figure 1 but a different view. Averaged heating rates and heating rates of averaged. Same as Figure 3 but with the clouds removed (clear sky assumption).

384

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Measurement of Convective Entrainment Using Lagrangian Particles Measurement of Convective Entrainment Using Lagrangian Particles Download a printable PDF Submitter: Romps, D., University of California, Berkeley Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Yeo K and DM Romps. 2013. "Measurement of convective entrainment using Lagrangian particles." Journal of the Atmospheric Sciences, 70(1), doi:10.1175/JAS-D-12-0144.1. Trajectories of seven particles that are entrained at the cloud base and transported to the cloud top. Colors denote the mixing ratio of condensed water. Previous work by Romps (2010) found large entrainment rates of ~100% per kilometer for deep convection using a new technique for large-eddy simulations (LES) called "Eulerian direct measurement". These results

385

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a Cloud-Resolving Model to Identify the Role of Aerosols on Clouds a Cloud-Resolving Model to Identify the Role of Aerosols on Clouds and Precipitation Download a printable PDF Submitter: Tao, W., NASA - Goddard Space Flight Center Area of Research: Cloud Distributions/Characterizations Working Group(s): Aerosol, Cloud Modeling Journal Reference: Tao, W.-K., X. Li, A. Khain, T. Matsui, S. Lang, and J. Simpson, 2007: The role of atmospheric aerosol concentration on deep convective precipitation: Cloud-resolving model simulations. J. Geophy. Res., (accepted). Zeng, X., W.-K. Tao, S. Lang, A. Y. Hou, M. Zhang, and J. Simpson, 2007: On the sensitivity of atmospheric ensemble states to cloud microphyics in long-term cloud-resolving model simulations. J. Meteor. Soc. Jpn., (submitted). Figure 1. Dirty environment (or high CCN) enhances precipitation in a

386

Research Facility,  

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Collecting and Delivering the Data Collecting and Delivering the Data As a general condition for use of the ARM Climate Research Facility, users are required to include their data in the ARM Data Archive. All data acquired must be of sufficient quality to be useful and must be documented such that users will be able to clearly understand the meaning and organization of the data. Final, quality-assured data sets are stored in the Data Archive and are freely accessible to the general scientific community. Preliminary data may be shared among field campaign participants during and shortly following the campaign. To facilitate sharing of preliminary data, the ARM Data Archive establishes restricted access capability, limited to participants and data managers.

387

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Characterizing Mixed-Phase Clouds from the Ground: a Status Report Characterizing Mixed-Phase Clouds from the Ground: a Status Report Download a printable PDF Submitter: Shupe, M., University of Colorado Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Shupe, MD, JS Daniel, G De Boer, EW Eloranta, P Kollias, E Luke, CN Long, DD Turner, and J Verlinde. 2008. "A focus on mixed-phase clouds: The status of ground-based observational methods." Bulletin of the American Meteorological Society, accepted for publication in October 2008 issue. Figure 1. Retrieved cloud properties for 9 October 2004 at Barrow: (a) Multisensor cloud phase classification, (b) radar Doppler spectra cloud phase classification, (c) ice water content, (d) ice particle effective radius, (e) adiabatic liquid water content scaled to the microwave

388

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Simulating the Impact of Aerosols on Tropical Deep Convection Simulating the Impact of Aerosols on Tropical Deep Convection Download a printable PDF Submitter: Morrison, H. C., NCAR Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Morrison H and WW Grabowski. 2011. "Cloud-system resolving model simulations of aerosol indirect effects on tropical deep convection and its thermodynamic environment." Atmospheric Chemistry and Physics, 11(20), doi:10.5194/acp-11-10503-201. Profiles of ensemble- and horizontally averaged a) cloud water mixing ratio, b) rain mixing ratio, c) ice mixing ratio, d) cloud droplet concentration, e) rain number concentration, and f) ice number concentration, Ni, for pristine (blue), polluted (green), and highly

389

Research Highlight  

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A Bulk Parameterization of Giant Cloud Condensation Nuclei A Bulk Parameterization of Giant Cloud Condensation Nuclei Download a printable PDF Submitter: Kogan, Y., University of Oklahoma - CIMMS Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Mechem, D. B., and Y. L. Kogan, 2007: A bulk parameterization of giant CCN. J. Atmos. Sci., conditionally accepted. Mean quantities as a function of GCCN concentration for polluted (squares) and clean (diamonds) background CCN conditions. Radiative quantities as a function of GCCN concentration for polluted and clean background CCN conditions shown in (a) optical depth; (b) albedo; (c) susceptibility; and (d) susceptibility relative to the control simulations without GCCN. A parameterization for giant cloud condensation nuclei (GCCN), suitable for

390

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Single-Column Modeling, GCM Parameterizations and ARM Data Single-Column Modeling, GCM Parameterizations and ARM Data Submitter: Somerville, R. C., Scripps Institution of Oceanography Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Randall, D.A., K.-M. Xu, R.C.J. Somerville, and S. Iacobellis, 1996: "Single-Column Models and Cloud Ensemble Models as Links between Observations and Climate Models," J. Climate 9(8)1683-1697. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 We have developed a Single-Column Model (SCM) to validate GCM cloud-radiation parameterizations against ARM observational data. The SCM is a computationally efficient one-dimensional representation of the atmospheric column overlying a single GCM grid cell. The SCM is integrated

391

Research Highlight  

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Five-Year Statistics of Shallow Clouds at the ACRF SGP Site Five-Year Statistics of Shallow Clouds at the ACRF SGP Site Download a printable PDF Submitter: Berg, L., Pacific Northwest National Laboratory Kassianov, E., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Berg, LK, and EI Kassianov. 2008. "Temporal variability of fair-weather cumulus statistics at the ARM SGP site." Journal of Climate 21, 3344-3358. Figure 1. Five-year mean ARSCL VAP values of cloud fraction (black), cloud-base height (orange circles), cloud-top height (red), cloud thickness (blue), and cloud-chord length (green), and their average daily bias for each year (B) and low-altitude moisture (C). While fair-weather clouds (FWC) are small in size, they are ubiquitous,

392

Research Highlight  

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Using Copulas to Model Complex Clouds Using Copulas to Model Complex Clouds Download a printable PDF Submitter: Oreopoulos, L., NASA Norris, P. M., NASA - GMAO/UMBC - GEST Hou, A., NASA - Goddard Space Flight Center Tao, W., NASA - Goddard Space Flight Center Zeng, X., NASA - Goddard Space Flight Center Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Modeling Journal Reference: Norris PM, L Oreopoulos, AY Hou, WK Tao, and X Zeng. 2008. "Representation of 3D heterogeneous cloud fields using copulas: Theory for water clouds." Quarterly Journal Royal Meteorological Society, 134(636), doi:10.1002/qj.321. Contours containing (brown-80%, orange-60%, cyan-40%, and blue-20%) of the joint inter-layer S probability, such that the probability densities within each contour are larger than those outside. Thick contours are from the GCE

393

Research Highlight  

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When Pollution Gets a Whiff of Trees When Pollution Gets a Whiff of Trees Download a printable PDF Submitter: Shilling, J., Pacific Northwest National Laboratory Area of Research: Aerosol Properties Working Group(s): Aerosol Life Cycle Journal Reference: Shilling JE, RA Zaveri, JD Fast, L Kleinman, M Alexander, MR Canagaratna, E Fortner, JM Hubbe, JT Jayne, A Sedlacek, A Setyan, S Springston, DR Worsnop, and Q Zhang. 2013. "Enhanced SOA formation from mixed anthropogenic and biogenic emissions during the CARES campaign." Atmospheric Chemistry and Physics, 13, doi:10.5194/acp-13-2091-2013. Organic aerosols from tree emissions increase when mixed with manmade sources, impacting the climate. It's easy to visualize particles and gases from vehicle exhaust or burning trash wafting into the atmosphere. It's harder to envision similar gases

394

Research Highlight  

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Cloud-Top Humidity Inversions and the Maintenance of Arctic Mixed-Phase Cloud-Top Humidity Inversions and the Maintenance of Arctic Mixed-Phase Stratocumulus Submitter: Solomon, A., NOAA/ESRL/Physical Sciences Division Shupe, M., University of Colorado Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Solomon A, MD Shupe, O Persson, and H Morrison. 2011. "Moisture and dynamical interactions maintaining decoupled Arctic mixed-phase stratocumulus in the presence of a humidity inversion." Atmospheric Chemistry and Physics, 11, doi:10.5194/acp-11-10127-2011. Soundings of mid-day decoupled stratocumulus at Barrow, Alaska. (A) Measured 17:34Z 8 April 2008 at (71.33N,156.61W). (B) 50-m LES simulation 20Z 8 April 2008 at (71.33N,156.91W). Gray shading marks the extent of the

395

Research Highlight  

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Case Closed on Nauru Island Effect Case Closed on Nauru Island Effect Download a printable PDF Submitter: Long, C. N., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Long CN and SA McFarlane. 2012. "Quantification of the impact of Nauru Island on ARM measurements." Journal of Applied Meteorology and Climatology, 51(3), 628-636. McFarlane SA, CN Long, and DM Flynn. 2005. "Impact of island-induced clouds on surface measurements: analysis of the ARM Nauru Island Effect Study data." Journal of Applied Meteorology, 44, 1045-1065. Conceptual model of the Nauru Island Effect and production of cloud plume. Approximate ARM Nauru site location is shown on the western side of the

396

Research Highlight  

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Atmospheric Moistening by Clouds Sustains Madden-Julian Oscillation Atmospheric Moistening by Clouds Sustains Madden-Julian Oscillation Download a printable PDF Submitter: Hagos, S. M., Pacific Northwest National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Life Cycle Journal Reference: N/A Outgoing longwave radiation (OLR Wm-2) signals in the tropics averaged between 10°S and 10°N from (a) a regional simulation with moisture constrained by observations and (b) NOAA-CPC satellite observations. The lines mark the eastward MJO propagation speed of 4 m/s. The constrained model is able to reproduce the key OLR features in the observations. Originating over the Indian Ocean, the Madden-Julian Oscillation (MJO) is an equatorial planetary-scale envelope of complex multi-scale cloud systems

397

Research Highlight  

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Comparisons Between Radiosondes and Remote Sensors During the 2004 NSA Comparisons Between Radiosondes and Remote Sensors During the 2004 NSA Arctic Winter Radiometric Experiment Submitter: Westwater, E. R., University of Colorado Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Radiative Processes Journal Reference: Mattioli, V, ER Westwater, D Cimini, JS Liljegren, BM Lesht, SI Gutman, and FJ Schmidlin. 2007. "Analysis of radiosonde and ground-based remotely sensed PWV data from the 2004 North Slope of Alaska Arctic Winter Radiometric Experiment." Journal of Atmospheric and Oceanic Technology 243: 415-431. Description of radiosondes launched during the 2004 NSA Arctic Winter Radiometric Experiment. Dual-radiosonde launch of the Vaisala RS90 and Chilled Mirror radiosondes is pictured here.

398

Research Highlight  

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Island-Induced Cloud Plumes Influence Tropical Atmospheric Measurements, Island-Induced Cloud Plumes Influence Tropical Atmospheric Measurements, Surface Radiation Submitter: McFarlane, S. A., U.S. Department of Energy Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: McFarlane, S.A., Long, C.N., and Flynn, D., Nauru Island Effect Study, Fourteenth ARM Science Team Meeting, March 22 to 26, 2004, Albuquerque, New Mexico. Nauru Island, about 1,200 miles northeast of Papua New Guinea in the western South Pacific, is one of three instrumented island sites that comprise ARM's Tropical Western Pacific locale. A key objective of the U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) Program is to identify interactions between the processes that determine the radiative properties of an atmospheric column, including

399

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Using the ACRF Shortwave Spectrometer to Study the Transition Between Clear Using the ACRF Shortwave Spectrometer to Study the Transition Between Clear and Cloudy Regions Download a printable PDF Submitter: Marshak, A., NASA - Goddard Space Flight Center Chiu, J., University of Reading Knyazikhin, Y., Boston University Pilewskie, P., University of Colorado Wiscombe, W. J., Brookhaven National Laboratory Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Chiu C, A Marshak, Y Knyazikhin, P Pilewskie, and W Wiscombe. 2009. "Physical interpretation of the spectral radiative signature in the transition zone between cloud-free and cloudy regions." Atmospheric Chemistry and Physics, 9(4), 1419-1430. (a) Total sky images on 18 May 2007, and (b) plot of SWS normalized zenith radiances. In (b), arrows pointed at the time axis correspond to the times

400

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Evaluation of Microwave Radiometer Performance in Alaska Evaluation of Microwave Radiometer Performance in Alaska Submitter: Liljegren, J. C., Argonne National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties, Radiative Processes Journal Reference: N/A Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 In order to determine the extent to which the ARM microwave radiometers would need to be modified to accommodate Arctic operations, an instrument designed for the Tropical Western Pacific was deployed at the University of Alaska at Fairbanks and continuously operated from 14 December 1995 through 20 June 1996 with the assistance of North Slope Site Scientist Knut Stamnes and Deputy Site Scientist Abdul Alkezweeny. Time series plots of the data are presented in Figure 1.

Note: This page contains sample records for the topic "research estimated crustal" 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

Research Highlight  

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

A Simple Stochastic Model for Generating Broken Cloud Optical Depth and A Simple Stochastic Model for Generating Broken Cloud Optical Depth and Cloud Top Height Fields Download a printable PDF Submitter: Marshak, A., NASA - Goddard Space Flight Center Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: Prigarin, S, and A Marshak. 2008. "A simple stochastic model for generating broken cloud optical depth and cloud top height fields." Journal of Atmospheric Sciences, in press. Fig. 1. A 68-km by 68-km region in Brazil centered at 17o S and 42o W collected on August 9, 2001, at 1015 local time. The solar zenith angle 410; the solar azimuth angle 23o (from the top). (a) moderate-resolution imaging spectroradiometer (MODIS) true color red, green, blue (RGB) 1-km

402

Research Highlight  

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

To Rain or Not to Rain...Aerosols May Be the Answer To Rain or Not to Rain...Aerosols May Be the Answer Download a printable PDF Submitter: Li, Z., University of Maryland Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Niu F and Z Li. 2012. "Systematic variations of cloud top temperature and precipitation rate with aerosols over the global tropics." Atmospheric Chemistry and Physics, 12, doi:10.5194/acp-12-8491-2012. Cloud-top temperature (A, C) and ice water path (B, D) as functions of AI/AOT for warm (blue dots) and cold (red dots) base mixed-phase clouds and liquid clouds (green dots) over the ocean (upper panels) and land (lower panels). The right-hand axes of (A) and (C) are for liquid clouds. Precipitation rate as a function of AI for mixed-phase (blue dots) and

403

The broadband bonus: Estimating broadband Internet's economic value  

Science Conference Proceedings (OSTI)

How much economic value did broadband Internet create? Despite the importance of this question for national policy, no research has estimated broadband's incremental contribution to U.S. GDP by calibrating against historical adoption and incorporating ... Keywords: Broadband, Economic value, Internet, Surplus

Shane Greenstein; Ryan C. McDevitt

2011-08-01T23:59:59.000Z

404

New developments on estimating satellite interfrequency bias for SVN49  

Science Conference Proceedings (OSTI)

In order to estimating satellite interfrequency bias Tgd for the anomalously behaving SVN49, a modified JPL GIM software suite is presented. This research assumed that the single-frequency user will not need to perform any modification in ... Keywords: Global ionospheric mapping (GIM), Ionosphere, SVN49, Satellite interfrequency bias

Attila Komjathy; Brian D. Wilson; Anthony J. Mannucci

2011-07-01T23:59:59.000Z

405

Battery Life Estimation of Mobile Embedded Systems Debashis Panigrahi  

E-Print Network (OSTI)

Battery Life Estimation of Mobile Embedded Systems Debashis Panigrahi ¡ , Carla Chiasserini Torino, Italy. £ C & C Research Labs, NEC USA, Princeton, NJ. Abstract Since battery life directly embedded system should be to maximize the energy de- livered by the battery, and hence the battery lifetime

406

A data streaming algorithm for estimating entropies of od flows  

Science Conference Proceedings (OSTI)

Entropy has recently gained considerable significance as an important metric for network measurement. Previous research has shown its utility in clustering traffic and detecting traffic anomalies. While measuring the entropy of the traffic observed at ... Keywords: data streaming, entropy estimation, network measurement, stable distributions, traffic matrix

Haiquan (Chuck) Zhao; Ashwin Lall; Mitsunori Ogihara; Oliver Spatscheck; Jia Wang; Jun Xu

2007-10-01T23:59:59.000Z

407

Chemistry Dept. Research Facilities  

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

Research Facilities As a research organization within a National Laboratory, the Chemistry Department operates research facilities that are available to other researchers as...

408

Preserving research data  

E-Print Network (OSTI)

Consortium for Political and Social Research. Ann Arbor, MI;Access to Publicly Funded Research Data. The Public Domainof the products of scientific research. Meanwhile, research

Jacobs, James A; Humphrey, Charles

2004-01-01T23:59:59.000Z

409

Estimating the Value of Electricity Storage Resources in Electricity  

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

Estimating the Value of Electricity Storage Resources in Estimating the Value of Electricity Storage Resources in Electricity Markets - EAC 2011 Estimating the Value of Electricity Storage Resources in Electricity Markets - EAC 2011 The purpose of this report is to assist the U.S. Department of Energy (DOE) in 1) establishing a framework for understanding the role electricity storage resources (storage) can play in wholesale and retail electricity markets, 2) assessing the value of electricity storage in a variety of regions or markets, 3) analyzing current and potential issues that can affect the valuation of storage by investors at the wholesale and retail level, and 4) identifying areas for future research and development for electricity storage technologies and applications. EAC - Estimating the Value of Electricity Storage Resources in Electricity

410

Estimating the Value of Electricity Storage Resources in Electricity  

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

Estimating the Value of Electricity Storage Resources in Estimating the Value of Electricity Storage Resources in Electricity Markets - EAC 2011 Estimating the Value of Electricity Storage Resources in Electricity Markets - EAC 2011 The purpose of this report is to assist the U.S. Department of Energy (DOE) in 1) establishing a framework for understanding the role electricity storage resources (storage) can play in wholesale and retail electricity markets, 2) assessing the value of electricity storage in a variety of regions or markets, 3) analyzing current and potential issues that can affect the valuation of storage by investors at the wholesale and retail level, and 4) identifying areas for future research and development for electricity storage technologies and applications. EAC - Estimating the Value of Electricity Storage Resources in Electricity

411

A Bayesian Framework for Combining Valuation Estimates  

E-Print Network (OSTI)

Obtaining more accurate equity value estimates is the starting point for stock selection, value-based indexing in a noisy market, and beating benchmark indices through tactical style rotation. Unfortunately, discounted cash flow, method of comparables, and fundamental analysis typically yield discrepant valuation estimates. Moreover, the valuation estimates typically disagree with market price. Can one form a superior valuation estimate by averaging over the individual estimates, including market price? This article suggests a Bayesian framework for combining two or more estimates into a superior valuation estimate. The framework justifies the common practice of averaging over several estimates to arrive at a final point estimate.

Kenton K. Yee

2007-07-24T23:59:59.000Z

412

Density estimation for data with rounding errors  

Science Conference Proceedings (OSTI)

Rounding of data is common in practice. The problem of estimating the underlying density function based on data with rounding errors is addressed. A parametric maximum likelihood estimator and a nonparametric bootstrap kernel density estimator are proposed. ... Keywords: Bootstrapping, Deconvolution density estimation, Fast Fourier transformation, Kernel density estimation, Measurement error

B. Wang, W. Wertelecki

2013-09-01T23:59:59.000Z

413

James-Stein type estimators of variances  

Science Conference Proceedings (OSTI)

In this paper we propose James-Stein type estimators for variances raised to a fixed power by shrinking individual variance estimators towards the arithmetic mean. We derive and estimate the optimal choices of shrinkage parameters under both the squared ... Keywords: 62H12, Inadmissibility, Shrinkage estimation, Shrinkage parameter, Squared loss function, Stein loss function, Variance estimation

Tiejun Tong; Homin Jang; Yuedong Wang

2012-05-01T23:59:59.000Z

414

Uncertainty in site inspection and tracking database estimates of savings  

SciTech Connect

The authors systematically analyze impact evaluation results of three commercial lighting rebate DSM programs. The research includes (1) analysis of ex ante and ex post estimates of program performance, broken down into critical program parameters: hours of operation, watts saved per measure, and measures installed per site; (2) construction of probability distributions of program performance, both in the aggregate and for these critical program parameters; and (3) use of these analyses and distributions to draw conclusions about the accuracy of savings estimates from a variety of evaluation methods. The analysis suggests that realization rates (a ratio of metered savings estimates to tracking database savings estimates) for the sample of participants they examine are subject to tremendous variability, calling into question the usefulness of a point estimate of the realization rate. Discrepancies in estimates of hours of operation are responsible for most of the uncertainty in the realization rate. Finally, the impact of shorter measure lifetimes on savings estimates suggest that persistence studies should be an evaluation priority.

Sonnenblick, R.; Eto, J. [Lawrence Berkeley National Lab., CA (United States)

1988-12-31T23:59:59.000Z

415

Research Highlight  

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

AERI-ER at the SHEBA Ice Station: Far Infrared H2O Continuum AERI-ER at the SHEBA Ice Station: Far Infrared H2O Continuum Submitter: Revercomb, H. E., University of Wisconsin, Madison Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Tobin, D.C., F.A. Best, P.D. Brown, S.A. Clough, R.G. Dedecker, R.G. Ellingson, R.K. Garcia, H.B. Howell, R.O. Knuteson, E.J. Mlawer, H.E. Revercomb, J.F. Short, P.F.W. van Delst, and V.P. Walden, 1999. "Downwelling spectral radiance observations at the SHEBA ice station: Water vapor continuum measurements from 17 to 26μm," JGR 104(D2): 2081-2092 Figure 1. Comparison of clear sky downwelling radiance spectra measured with the University of Wisconsin AERI system at the SGP CART site near Lamont, Oklahoma and with the extended range AERI at the SHEBA Ice Station,

416

Estimated Cost Description Determination Date:  

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

and posted 2/10/2011 and posted 2/10/2011 *Title, Location Estimated Cost Description Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain $50,000 FONSI: uncertain Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain FONSI: uncertain Total Estimated Cost $70,000 Attachment: Memo, Moody to Marcinowski, III, SUBJECT: NEPA 2011 APS for DOE-SRS, Dated: Annual NEPA Planning Summary Environmental Assessments (EAs) Expected to be Initiated in the Next 12 Months Department of Energy (DOE) Savannah River Site (SRS) Jan-11 Estimated Schedule (**NEPA Milestones) South Carolina Department of Health and Environmental Control (SCDHEC) issued a National Pollutant Discharge Elimination System (NPDES) Industrial Stormwater General Permit (IGP) # SCR000000 November 12, with an effective date of January

417

NRC Postdoctoral Research Associateships  

Science Conference Proceedings (OSTI)

NRC Postdoctoral Research Associateships. ... Research topics and associated advisors for the Magnetics Group are listed below. ...

2013-05-13T23:59:59.000Z

418

BMD Postdoctoral Research Opportunities  

Science Conference Proceedings (OSTI)

Biomolecular Measurement Division NRC Postdoctoral Research Opportunities. ... NIST NRC Postdoctoral Research Opportunities. ...

2013-05-16T23:59:59.000Z

419

BLE: Battery Life Estimator | Argonne National Laboratory  

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

Life Estimator (BLE) software is a state-of-the-art tool kit for fitting battery aging data and for battery life estimation. It was designed to make life-cycle estimates...

420

Quantum state estimation with unknown measurements  

E-Print Network (OSTI)

Improved measurement techniques are central to technological development and foundational scientific exploration. Quantum optics relies upon detectors sensitive to non-classical features of light, enabling precise tests of physical laws and quantum-enhanced technologies such as precision measurement and secure communications. Accurate detector response calibration for quantum-scale inputs is key to future research and development in these cognate areas. To address this requirement quantum detector tomography (QDT) has been recently introduced. However, the QDT approach becomes increasingly challenging as the complexity of the detector response and input space grows. Here we present the first experimental implementation of a versatile alternative characterization technique to address many-outcome quantum detectors by limiting the input calibration region. To demonstrate the applicability of this approach the calibrated detector is subsequently used to estimate non-classical photon number states.

Merlin Cooper; Michal Karpinski; Brian J. Smith

2013-06-27T23:59:59.000Z

Note: This page contains sample records for the topic "research estimated crustal" 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

Periodicity estimation of Dynamic Textures  

Science Conference Proceedings (OSTI)

Dynamic Textures (DTs) are image sequences of natural events like fire, smoke, water etc., that possesses regular motion patterns. Periodicity is a widely used tool to analyse regular structures of periodic one dimensional signals as well as two dimensional ... Keywords: co-occurrence matrix, dynamic textures, image sequences, image texture analysis, motion patterns, natural events, periodicity estimation, temporal textures

Khalid Zaman Bijon; Ahmed Hasan; Ashfaqur Rahman; Manzur Murshed

2008-03-01T23:59:59.000Z

422

Practical Estimates of Lake Evaporation  

Science Conference Proceedings (OSTI)

Practical estimates of lake evaporation must rely on data that can be observed in the land environment. This requires the ability to take into account the changes in the temperature and humidity that occur when the air passes from the land to the ...

F. I. Morton

1986-03-01T23:59:59.000Z

423

An Improved Cluster Richness Estimator  

Science Conference Proceedings (OSTI)

Minimizing the scatter between cluster mass and accessible observables is an important goal for cluster cosmology. In this work, we introduce a new matched filter richness estimator, and test its performance using the maxBCG cluster catalog. Our new estimator significantly reduces the variance in the L{sub X}-richness relation, from {sigma}{sub lnL{sub X}}{sup 2} = (0.86 {+-} 0.02){sup 2} to {sigma}{sub lnL{sub X}}{sup 2} = (0.69 {+-} 0.02){sup 2}. Relative to the maxBCG richness estimate, it also removes the strong redshift dependence of the richness scaling relations, and is significantly more robust to photometric and redshift errors. These improvements are largely due to our more sophisticated treatment of galaxy color data. We also demonstrate the scatter in the L{sub X}-richness relation depends on the aperture used to estimate cluster richness, and introduce a novel approach for optimizing said aperture which can be easily generalized to other mass tracers.

Rozo, Eduardo; /Ohio State U.; Rykoff, Eli S.; /UC, Santa Barbara; Koester, Benjamin P.; /Chicago U. /KICP, Chicago; McKay, Timothy; /Michigan U.; Hao, Jiangang; /Michigan U.; Evrard, August; /Michigan U.; Wechsler, Risa H.; /SLAC; Hansen, Sarah; /Chicago U. /KICP, Chicago; Sheldon, Erin; /New York U.; Johnston, David; /Houston U.; Becker, Matthew R.; /Chicago U. /KICP, Chicago; Annis, James T.; /Fermilab; Bleem, Lindsey; /Chicago U.; Scranton, Ryan; /Pittsburgh U.

2009-08-03T23:59:59.000Z

424

Unsupervised clustering and centroid estimation using dynamic ...  

Science Conference Proceedings (OSTI)

solving cluster detection and centroid estimation prob- lems. ... density function and these vectors estimate the cen- ..... an algorithm to minimize a cost function.

425

Estimating Waste Inventory and Waste Tank Characterization |...  

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

Estimating Waste Inventory and Waste Tank Characterization Estimating Waste Inventory and Waste Tank Characterization Summary Notes from 28 May 2008 Generic Technical Issue...

426

Empirical Study of MacroBIM and Conceptual Estimation  

E-Print Network (OSTI)

Building Information Modeling (BIM) has set up a mark in the construction industry over a decade. In order to gain benefit of BIM in estimating the project cost at the early stage of construction with the limited data available, a new concept of MacroBIM has been introduced in the industry. However, limited amount of research has been implemented to determine how MacroBIM has been accepted in the construction industry. Most research was focused on the accuracy of the conceptual estimation. This research attempted to determine the effectiveness of MacroBIM process applied at early stages of construction for conceptual cost estimation. Experts from the discipline of architecture, contractor and owners were interviewed and their professional opinions on MacroBIM were analyzed using grounded theory. The results show that, compared to the traditional conceptual estimating process, MacroBIM is an effective method for 1) saving labor hours, 2) conveying assumptions with the help of its visualization capabilities, 3) enhancing the collaboration among the project participants, and 4) evaluating multiple design scenarios. However, fear of using MacroBIM and trust in its outcome existed among some contractors, architects, and owners because this technology has not matured yet. Moreover, the need of interoperability between the MacroBIM tools and MicroBIM tools, such as Revit, has also surfaced in the study.

Gajbhiye, Anand Dhanraj

2010-05-01T23:59:59.000Z

427

Modeling crustal deformation and rupture processes related to upwelling of deep CO2-rich fluids during the 1965-1967 Matsushiro Earthquake Swarm in Japan  

Science Conference Proceedings (OSTI)

In Matsushiro, central Japan, a series of more than 700,000 earthquakes occurred over a 2-year period (1965-1967) associated with a strike-slip faulting sequence. This swarm of earthquakes resulted in ground surface deformations, cracking of the topsoil, and enhanced spring-outflows with changes in chemical compositions as well as carbon dioxide (CO{sub 2}) degassing. Previous investigations of the Matsushiro earthquake swarm have suggested that migration of underground water and/or magma may have had a strong influence on the swarm activity. In this study, employing coupled multiphase flow and geomechanical modelling, we show that observed crustal deformations and seismicity can have been driven by upwelling of deep CO{sub 2}-rich fluids around the intersection of two fault zones - the regional East Nagano earthquake fault and the conjugate Matsushiro fault. We show that the observed spatial evolution of seismicity along the two faults and magnitudes surface uplift, are convincingly explained by a few MPa of pressurization from the upwelling fluid within the critically stressed crust - a crust under a strike-slip stress regime near the frictional strength limit. Our analysis indicates that the most important cause for triggering of seismicity during the Matsushiro swarm was the fluid pressurization with the associated reduction in effective stress and strength in fault segments that were initially near critically stressed for shear failure. Moreover, our analysis indicates that a two order of magnitude permeability enhancement in ruptured fault segments may be necessary to match the observed time evolution of surface uplift. We conclude that our hydromechanical modelling study of the Matsushiro earthquake swarm shows a clear connection between earthquake rupture, deformation, stress, and permeability changes, as well as large-scale fluid flow related to degassing of CO{sub 2} in the shallow seismogenic crust. Thus, our study provides further evidence of the important role of deep fluid sources in earthquake fault dynamics and surface deformations.

Cappa, F.; Rutqvist, J.; Yamamoto, K.

2009-05-15T23:59:59.000Z

428

GAO Cost Estimating and Assessment Guide Twelve Steps of a High-Quality Cost Estimating Process  

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

GAO Cost Estimating and Assessment Guide GAO Cost Estimating and Assessment Guide Twelve Steps of a High-Quality Cost Estimating Process Step Description Associated task 1 Define estimate's purpose Determine estimate's purpose, required level of detail, and overall scope; Determine who will receive the estimate 2 Develop estimating plan Determine the cost estimating team and develop its master schedule; Determine who will do the independent cost estimate; Outline the cost estimating approach; Develop the estimate timeline 3 Define program characteristics In a technical baseline description document, identify the program's

429

NREL: Wind Research - International Research Collaboratives  

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

Research Collaboratives Research Collaboratives Researchers at the National Wind Technology Center (NWTC) leverage U.S. research dollars by participating in multi-lateral research collaborations with many international organizations. NWTC collaborates with several of the world's most respected institutions, including the national research institutions of other countries. NREL also works through international agencies dedicated to the common interests of energy research and applications such as the International Energy Agency (IEA), the International Electrotechnical Commission (IEC), the Institute of Electrical and Electronics Engineers (IEEE), Underwriters Laboratory, and the International Measuring Network of Wind Energy Institutes (MEASNET). International Energy Agency NREL supports international research efforts through its participation in

430

NREL: Research Participant Program - Postdoctoral Researchers  

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

For current job openings, select "Search Openings" on Job Openings and select "Research Participant Program" from "Job Group" list. Qualified postdoctoral researchers have...

431

Education Research Interests Employment Research - CECM  

E-Print Network (OSTI)

Jun 15, 2003 ... Research in symbolic summation, and differential equations. Software ... Research in Computer Science and Control, France. Supervisor: Dr. B.

432

Figure 1.6 State-Level Energy Consumption Estimates and Estimated ...  

U.S. Energy Information Administration (EIA)

Figure 1.6 State-Level Energy Consumption Estimates and Estimated Consumption per Capita, 2010 Consumption Consumption per Capita

433

ARM Site Atmospheric State Best Estimates for AIRS Validation  

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

Site Atmospheric State Best Estimates Site Atmospheric State Best Estimates for AIRS Validation D. C. Tobin, H. E. Revercomb, W. F. Feltz, R. D. Knuteson, and D. D. Turner Space Science and Engineering Center University of Wisconsin-Madison Madison, Wisconsin B. M. Lesht Environmental Research Division Argonne National Laboratory Argonne, Illinois L. Strow University of Maryland College Park, Maryland C. Barnet Joint Center for Earth Systems Technology Baltimore, Maryland E. Fetzer National Aeronautics Space Administration Jet Propulsion Laboratory Pasadena, California Introduction The atmospheric infrared sounder (AIRS) is a high spectral resolution infrared sounder on the earth observing plan (EOS) Aqua platform. Temperature and water vapor profile retrievals from AIRS are

434

The Use of Satellite Altimeter Data to Estimate the Extreme Wave Climate  

Science Conference Proceedings (OSTI)

Since 1986, nine years of wave data derived from satellites have been accumulated, and this database will expand dramatically in the next two years as two more satellites are added. Several researchers have begun using this data to estimate ...

Cortis K. Cooper; George Z. Forristall

1997-04-01T23:59:59.000Z

435

Reanalyses-Based Tropospheric Temperature Estimates: Uncertainties in the Context of Global Climate Change Detection  

Science Conference Proceedings (OSTI)

Uncertainties in estimates of tropospheric mean temperature were investigated in the context of climate change detection through comparisons of the National Centers for Environmental Prediction–National Center for Atmospheric Research (NCEP–NCAR) ...

Muthuvel Chelliah; C. F. Ropelewski

2000-09-01T23:59:59.000Z

436

Estimating Externalities of Hydro Fuel Cycles, Report 6  

DOE Green Energy (OSTI)

There are three major objectives of this hydropower study: (1) to implement the methodological concepts that were developed in the background document (ORNL/RFF 1992) as a means of estimating the external costs and benefits of fuel cycles and, by so doing, to demonstrate their application to the hydroelectric fuel cycle (different fuel cycles have unique characteristics that need to be addressed in different ways); (2) to develop, given the time and resources, the best range of estimates of externalities associated with hydroelectric projects, using two benchmark projects at two reference sites in the US; and (3) to assess the state of the information that is available to support the estimation of externalities associated with the hydroelectric fuel cycle and, by so doing, to assist in identifying gaps in knowledge and in setting future research agendas. The main consideration in defining these objectives was a desire to have more information about externalities and a better method for estimating them. As set forth in the agreement between the US and the EC, the study is explicitly and intentionally not directed at any one audience. This study is about a methodology for estimating externalities. It is not about how to use estimates of externalities in a particular policy context.

Barnthouse, L.W.; Cada, G.F.; Cheng, M.-D.; Easterly, C.E.; Kroodsma, R.L.; Lee, R.; Shriner, D.S.; Tolbert, V.R.; Turner, R.S.

1994-12-01T23:59:59.000Z

437

Bayesian estimation in homodyne interferometry  

E-Print Network (OSTI)

We address phase-shift estimation by means of squeezed vacuum probe and homodyne detection. We analyze Bayesian estimator, which is known to asymptotically saturate the classical Cramer-Rao bound to the variance, and discuss convergence looking at the a posteriori distribution as the number of measurements increases. We also suggest two feasible adaptive methods, acting on the squeezing parameter and/or the homodyne local oscillator phase, which allow to optimize homodyne detection and approach the ultimate bound to precision imposed by the quantum Cramer-Rao theorem. The performances of our two-step methods are investigated by means of Monte Carlo simulated experiments with a small number of homodyne data, thus giving a quantitative meaning to the notion of asymptotic optimality.

Stefano Olivares; Matteo G. A. Paris

2009-01-16T23:59:59.000Z

438

Previous Testbed Research  

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

Previous Testbed Research R&D Overview 100G Testbed Testbed Description Testbed Results Current Testbed Research Previous Testbed Research Proposal Process Terms and...

439

IBM Research Report  

E-Print Network (OSTI)

Feb 2, 2006 ... (Part of this research was carried out when Andrea Lodi was Herman Goldstine Fellow of the IBM T. J. Watson Research Center). Research ...

440

Research interests - CECM  

E-Print Network (OSTI)

Research interests. My main research interests lie in the areas of algebraic combinatorics, algebraic cryptography and coding theory. My current research ...

Note: This page contains sample records for the topic "research estimated crustal" 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

Nanofabrication Research Staff Page  

Science Conference Proceedings (OSTI)

... Student Researchers. Sarice Barkley, CNST/UMD Research Assistant Sarice Barkley is a CNST/UMD Research Assistant in the Nanofabrication ...

2013-11-06T23:59:59.000Z

442

IBM Research Report  

E-Print Network (OSTI)

Jun 5, 2007 ... Copies may be requested from IBM T. J. Watson Research Center , P. ... Research supported in part by an IBM Open Collaborative Research ...

443

Research Library Awards  

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

Research Library Awards Research Library Awards The Research Library and its staff have received many prestigious awards in its history, this page list a select few of them......

444

Vision Research Foundations  

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

Vision Research Foundations National Alliance for Eye and Vision Research www.eyeresearch.org Foundation Fighting Blindness www.blindness.org Research to Prevent Blindess...

445

Measurement campaigns for holdup estimation  

SciTech Connect

The derivation of technically defensible holdup estimates is described. Considerations important in the planning of measurement campaigns to provide necessary data are reviewed and the role of statistical sampling is discussed. By design, the presentation is nonmathematical and intended for a general audience. Though clearly important, use of sampling principles in the planning of holdup-related activities is sometimes viewed with apprehension. Holdup is often poorly understood to begin with, and the incorporation of the esoteric matters only adds to an image problem. Unfortunately, there are no painless options. In many operating facilities, surface areas on which holdup has accumulated amount to many square miles. It is not practical to pursue 100% measurement of all such surface areas. Thus, some portion is measured - constituting a ''sample,'' whether obtained by a formal procedure or not. Understanding the principles behind sampling is important in planning and in developing legitimate holdup estimates. Although derivation of legitimate, facility-wide holdup estimates is not currently mandated by Department of Energy regulatory requirements, the related activities would greatly advance the present state of knowledge.

Picard, R.R. (Los Alamos National Lab., Los Alamos, NM (US))

1988-07-01T23:59:59.000Z

446

Estimates of the Global Water Budget and Its Annual Cycle Using Observational and Model Data  

Science Conference Proceedings (OSTI)

A brief review is given of research in the Climate Analysis Section at NCAR on the water cycle. Results are used to provide a new estimate of the global hydrological cycle for long-term annual means that includes estimates of the main reservoirs ...

Kevin E. Trenberth; Lesley Smith; Taotao Qian; Aiguo Dai; John Fasullo

2007-08-01T23:59:59.000Z

447

Guidelines for developing effective Estimation of Distribution Algorithms in solving single machine scheduling problems  

Science Conference Proceedings (OSTI)

The goal of this research is to deduce important guidelines for designing effective Estimation of Distribution Algorithms (EDAs). These guidelines will enhance the designed algorithms in balancing the intensification and diversification effects of EDAs. ... Keywords: Diversification, Estimation of Distribution Algorithms, Intensification, Just-in-time, Single machine scheduling problems

Shih-Hsin Chen; Min-Chih Chen; Pei-Chann Chang; Qingfu Zhang; Yuh-Min Chen

2010-09-01T23:59:59.000Z

448

Three-dimensional image-based modelling of linear features for plant biomass estimation  

Science Conference Proceedings (OSTI)

Biomass estimation is important for biological research and agricultural management. Low-cost two-dimensional 2D computer vision has been applied to non-contact biomass estimation. However, the rapid increase of computing power has enabled the use of ...

RanNisim Lati, Alex Manevich, Sagi Filin

2013-09-01T23:59:59.000Z

449

Evaluation of preliminary data analysis framework in software cost estimation based on ISBSG R9 Data  

Science Conference Proceedings (OSTI)

Previous research has argued that preliminary data analysis is necessary for software cost estimation. In this paper, a framework for such analysis is applied to a substantial corpus of historical project data (ISBSG R9 data), selected without explicit ... Keywords: ISBSG Data R9, Software cost estimation, Software engineering data analysis

Qin Liu; Wen Zhong Qin; Robert Mintram; Margaret Ross

2008-09-01T23:59:59.000Z

450

Fire Research Grants Program  

Science Conference Proceedings (OSTI)

Fire Research awards are open to institutions of higher education; hospitals; non-profit organizations ... The National Fire Research Laboratory. ...

2013-08-23T23:59:59.000Z

451

Research Facilities and Programs  

Science Conference Proceedings (OSTI)

WEB RESOURCES: Magnesium Research Facilities and Programs ... to universities, corporations, and other facilities involved in magnesium research, 0, 1025 ...

452

NIST Forensic Science Research  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. NIST Forensic Science Research. NIST has conducted and supported forensic science research for many decades. ...

2013-09-23T23:59:59.000Z

453

NISTBiophysics group research opportunities  

Science Conference Proceedings (OSTI)

... techniques to NIST scientific programs, strengthens mutual communication with university researchers, shares NIST unique research facilities with ...

2013-04-01T23:59:59.000Z

454

Research Project Description  

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

Research Project Description No job description found Current Research Opportunities Regulatory Science Course Development Fellowship Health and Medical Emergency Management...

455

Updated cost estimates of meeting geothermal hydrogen sulfide emission regulations  

DOE Green Energy (OSTI)

A means of estimating the cost of hydrogen sulfide (H/sub 2/S) emission control was investigated. This study was designed to derive H/sub 2/S emission abatement cost functions and illustrate the cost of H/sub 2/S emission abatement at a hydrothermal site. Four tasks were undertaken: document the release of H/sub 2/S associated with geothermal development; review H/sub 2/S environmental standards; develop functional relationships that may be used to estimate the most cose-effective available H/sub 2/S abatement process; and use the cost functions to generate abatement cost estimates for a specific site. The conclusions and recommendations derived from the research are presented. The definition of the term impacts as used in this research is discussed and current estimates of the highest expected H/sub 2/S concentrations of in geothermal reservoirs are provided. Regulations governing H/sub 2/S emissions are reviewed and a review of H/sub 2/S control technology and a summary of the control cost functions are included. A case study is presented to illustrate H/sub 2/S abatement costs at the Baca KGRA in New Mexico.

Wells, K.D.; Currie, J.W.; Weakley, S.A.; Ballinger, M.Y.

1981-08-01T23:59:59.000Z

456

Novel Techniques to Estimate and Extend Transformer Life  

Science Conference Proceedings (OSTI)

This work is a continuation of Electric Power Research Institute (EPRI) report 1017736, Use of Paper Degradation Products for Diagnostics and Condition Assessment: Phase 2Identification of Marker Compounds of Insulating Paper. In this phase, laboratory experiments were performed to identify non-furanic marker compounds as diagnostic indicators and for monitoring the degradation of mixed paper systems (kraft and thermally upgraded paper [TUP]). Such knowledge is necessary to estimate the condition of the ...

2010-12-22T23:59:59.000Z

457

Upper Estimates for Banach Spaces  

E-Print Network (OSTI)

We study the relationship of dominance for sequences and trees in Banach spaces. In the context of sequences, we prove that domination of weakly null sequences is a uniform property. More precisely, if $(v_i)$ is a normalized basic sequence and $X$ is a Banach space such that every normalized weakly null sequence in $X$ has a subsequence that is dominated by $(v_i)$, then there exists a uniform constant $C\\geq1$ such that every normalized weakly null sequence in $X$ has a subsequence that is $C$-dominated by $(v_i)$. We prove as well that if $V=(v_i)_{i=1}^\\infty$ satisfies some general conditions, then a Banach space $X$ with separable dual has subsequential $V$ upper tree estimates if and only if it embeds into a Banach space with a shrinking FDD which satisfies subsequential $V$ upper block estimates. We apply this theorem to Tsirelson spaces to prove that for all countable ordinals $\\alpha$ there exists a Banach space $X$ with Szlenk index at most $\\omega^{\\alpha \\omega +1}$ which is universal for all Banach spaces with Szlenk index at most $\\omega^{\\alpha\\omega}$.

Freeman, Daniel B.

2009-08-01T23:59:59.000Z

458

Interruption Cost Estimate Calculator | Open Energy Information  

Open Energy Info (EERE)

Interruption Cost Estimate Calculator Interruption Cost Estimate Calculator Jump to: navigation, search Tool Summary Name: Interruption Cost Estimate (ICE) Calculator Agency/Company /Organization: Freeman, Sullivan & Co. Sector: Energy Focus Area: Grid Assessment and Integration, Energy Efficiency Resource Type: Online calculator, Software/modeling tools User Interface: Website Website: icecalculator.com/ Country: United States Cost: Free Northern America References: [1] Logo: Interruption Cost Estimate (ICE) Calculator This calculator is a tool designed for electric reliability planners at utilities, government organizations or other entities that are interested in estimating interruption costs and/or the benefits associated with reliability improvements. About The Interruption Cost Estimate (ICE) Calculator is an electric reliability

459

NREL: Wind Research - Advanced Research Turbines  

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

Research Turbines Two 440 foot meteorological towers are upwind of two research wind turbines. Two 600-kW Westinghouse turbines at the NWTC are used to test new control...

460

NREL: Concentrating Solar Power Research - Research Staff  

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

Research Staff Here you'll find contact information for NREL's concentrating solar power research team and staff. To learn more about us and our expertise, read the staff's...

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


461

Human Subjects Research, Office of Research Administration  

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

search BNL Go Site Details Homepage Human Subjects Research Animal Research Contact Us Other Information BNL Visitor Information Directions to BNL BNL Site Index Can't View PDFs?...

462

Energy Research and Development Division FINAL PROJECT REPORT  

E-Print Network (OSTI)

Energy Research and Development Division FINAL PROJECT REPORT PRELIMINARY ESTIMATES5002013051 Prepared for: California Energy Commission Prepared by: Lawrence Berkeley National Laboratory: 500-99-013 Prepared for: California Energy Commission Steve Ghadiri Contract Manager Fernando Piña

463

Atmospheric Inverse Estimates of Methane Emissions from Central California  

SciTech Connect

Methane mixing ratios measured at a tall-tower are compared to model predictions to estimate surface emissions of CH{sub 4} in Central California for October-December 2007 using an inverse technique. Predicted CH{sub 4} mixing ratios are calculated based on spatially resolved a priori CH{sub 4} emissions and simulated atmospheric trajectories. The atmospheric trajectories, along with surface footprints, are computed using the Weather Research and Forecast (WRF) coupled to the Stochastic Time-Inverted Lagrangian Transport (STILT) model. An uncertainty analysis is performed to provide quantitative uncertainties in estimated CH{sub 4} emissions. Three inverse model estimates of CH{sub 4} emissions are reported. First, linear regressions of modeled and measured CH{sub 4} mixing ratios obtain slopes of 0.73 {+-} 0.11 and 1.09 {+-} 0.14 using California specific and Edgar 3.2 emission maps respectively, suggesting that actual CH{sub 4} emissions were about 37 {+-} 21% higher than California specific inventory estimates. Second, a Bayesian 'source' analysis suggests that livestock emissions are 63 {+-} 22% higher than the a priori estimates. Third, a Bayesian 'region' analysis is carried out for CH{sub 4} emissions from 13 sub-regions, which shows that inventory CH{sub 4} emissions from the Central Valley are underestimated and uncertainties in CH{sub 4} emissions are reduced for sub-regions near the tower site, yielding best estimates of flux from those regions consistent with 'source' analysis results. The uncertainty reductions for regions near the tower indicate that a regional network of measurements will be necessary to provide accurate estimates of surface CH{sub 4} emissions for multiple regions.

Zhao, Chuanfeng; Andrews, Arlyn E.; Bianco, Laura; Eluszkiewicz, Janusz; Hirsch, Adam; MacDonald, Clinton; Nehrkorn, Thomas; Fischer, Marc L.

2008-11-21T23:59:59.000Z

464

Best Estimate Radiation Flux Value-Added Procedure: Algorithm Operational Details and Explanations  

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

8 8 Best Estimate Radiation Flux Value-Added Procedure: Algorithm Operational Details and Explanations October 2002 Y. Shi and C. N. Long DOE, ARM, Pacific Northwest National Laboratory Richland, Washington Work supported by the U.S. Department of Energy, Office of Energy Research, Office of Health and Environmental Research Contents 1. Introduction ............................................................................................................................................ 1 2. Input Data ............................................................................................................................................... 1 3. Configuration Files.................................................................................................................................

465

Rainfall-Rate Estimation Using Gaussian Mixture Parameter Estimator: Training and Validation  

Science Conference Proceedings (OSTI)

This study develops a Gaussian mixture rainfall-rate estimator (GMRE) for polarimetric radar-based rainfall-rate estimation, following a general framework based on the Gaussian mixture model and Bayes least squares estimation for weather radar–...

Zhengzheng Li; Yan Zhang; Scott E. Giangrande

2012-05-01T23:59:59.000Z

466

Research and Development with Full Scale Research  

E-Print Network (OSTI)

One of the research programs of the Energy research Centre of the Netherlands (ECN) concerns the built environment. Several facilities to conduct the research activities are at ECN's disposal. One of these facilities, are five research dwellings located on the site of ECN (Petten, Netherlands). Measured data from these facilities together with weather data and computer models of the buildings are used to evaluate performance of innovative energy concepts and components in these systems. The facilities are used for a broad range of research activities as well as product development. This paper explains more about the test facilities and the methods that are used to evaluate performance.

Sijpheer, N.; Bakker, E.J.; Opstelten, I.

2010-01-01T23:59:59.000Z

467

Estimation of Convective Rainfall from Lightning Observations  

Science Conference Proceedings (OSTI)

The objective of this study is to develop a technique to use lightning observations for estimating convective rainfall. A framework for rainfall estimation is developed in which key elements are 1) the rainfall–lightning ratio, that is, the ...

Alberto Tapia; James A. Smith; Michael Dixon

1998-11-01T23:59:59.000Z

468

Estimates of Large Spectrum Width from Autocovariances  

Science Conference Proceedings (OSTI)

The authors demonstrate that there are maximum measurable (saturation) spectrum widths for standard autocovariance techniques, the 0,1-lag autocovariance estimator and the 1,2-lag estimator. The maximal mean measurable spectrum widths from the ...

Valery M. Melnikov; Dusan S. Zrni?

2004-06-01T23:59:59.000Z

469

Estimating UV Index Climatology over Canada  

Science Conference Proceedings (OSTI)

Hourly UV index values at 45 sites in Canada were estimated using a statistical relationship between UV irradiance and global solar radiation, total ozone, and dewpoint temperature. The estimation method also takes into account the enhancement of ...

V. E. Fioletov; J. B. Kerr; L. J. B. McArthur; D. I. Wardle; T. W. Mathews

2003-03-01T23:59:59.000Z

470

Prediction accuracy of link-quality estimators  

Science Conference Proceedings (OSTI)

The accuracy of link-quality estimators (LQE) is missioncritical in many application scenarios in wireless sensor networks (WSN), since the link-quality metric is used for routing decisions or neighborhood formation. Link-quality estimation must offer ...

Christian Renner; Sebastian Ernst; Christoph Weyer; Volker Turau

2011-02-01T23:59:59.000Z

471

2007 Estimated International Energy Flows  

Science Conference Proceedings (OSTI)

An energy flow chart or 'atlas' for 136 countries has been constructed from data maintained by the International Energy Agency (IEA) and estimates of energy use patterns for the year 2007. Approximately 490 exajoules (460 quadrillion BTU) of primary energy are used in aggregate by these countries each year. While the basic structure of the energy system is consistent from country to country, patterns of resource use and consumption vary. Energy can be visualized as it flows from resources (i.e. coal, petroleum, natural gas) through transformations such as electricity generation to end uses (i.e. residential, commercial, industrial, transportation). These flow patterns are visualized in this atlas of 136 country-level energy flow charts.

Smith, C A; Belles, R D; Simon, A J

2011-03-10T23:59:59.000Z

472

ASHRAE Research PROGRAM OVERVIEW  

E-Print Network (OSTI)

ASHRAE Research PROGRAM OVERVIEW November 8, 2011 Michael R. Vaughn, P.E. Manager, Research and Technical Services MORTS@ashrae.net #12;What we will cover · Introduction to ASHRAE Research · ASHRAE's Strategic Plan for Research · Research and Objectives related to Heat Pumps · GSHP System at ASHRAE HQ

Oak Ridge National Laboratory

473

Intermediate-Term Uranium Supply Curve Estimation  

Science Conference Proceedings (OSTI)

A study was undertaken to estimate U.S. natural uranium supply capacities and associated production costs over the period 1979-1990 and to develop the general supply outlook to 2000. Annual supply capacity schedules were estimated on an individual mill and mine family basis. Future production schedules were estimated by balancing estimated supply capacity with DOE's future demand projections; the impact of private-sector inventory levels was accounted for.

1981-02-01T23:59:59.000Z

474

Estimating Flexoelectric Properties of Piezoelectric Crystals  

Science Conference Proceedings (OSTI)

Energy Harvesting Utilized Resonance Phenomena of Piezoelectric Unimorph · Estimating Flexoelectric Properties of Piezoelectric Crystals: Utilization of a ...

475

Nonlinear spectral density estimation: thresholding the correlogram  

E-Print Network (OSTI)

in a nonlinear way. The rate of convergence of the new estimators is quantified, and practical issues estimation of the spectral density function; examples include astronomy, economics, electrical engineering Einstein (1914); see Brillinger (1993) for a historical perspective. The prevalent spectral estimation

Politis, Dimitris N.

476

New Methodology for Natural Gas Production Estimates  

Reports and Publications (EIA)

A new methodology is implemented with the monthly natural gas production estimates from the EIA-914 survey this month. The estimates, to be released April 29, 2010, include revisions for all of 2009. The fundamental changes in the new process include the timeliness of the historical data used for estimation and the frequency of sample updates, both of which are improved.

Information Center

2010-04-26T23:59:59.000Z

477

Skew estimation of document images using bagging  

Science Conference Proceedings (OSTI)

This paper proposes a general-purpose method for estimating the skew angles of document images. Rather than to derive a skew angle merely from text lines, the proposed method exploits various types of visual cues of image skew available in local image ... Keywords: bagging estimator, document image analysis, floating cascade, radon transform, skew estimation

Gaofeng Meng; Chunhong Pan; Nanning Zheng; Chen Sun

2010-07-01T23:59:59.000Z

478

Transportation Research Internship Program  

E-Print Network (OSTI)

Transportation Research Internship Program Civil & Coastal Engineering Overview The Transportation Research Internship Program (TRIP) is conducted by the Transportation Research Center (TRC) and the Center is to provide undergraduates an exciting opportunity to learn about transportation engineering

Slatton, Clint

479

Research | Biosciences Division  

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

DOE Logo Search BIO ... Search Argonne Home > BIO home > Research BIO Home Page About BIO News Releases Research Publications People Contact Us Organization Chart Site Index...

480

Early Career Research Program  

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

Office of Science Early Career Research Program Early Career Research Program Overview Divisional Points of Contact Office of Science Early Career Website Important Dates Links and...

Note: This page contains sample records for the topic "research estimated crustal" 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.


481

Research Staff - FEERC  

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

Research Staff Robert M. Wagner Director, Distinguished R&D Staff Group Leader, Fuels & Engines Research Group Brian H. West Deputy Director James E. Parks II Group Leader,...

482

AVT Related Research  

Science Conference Proceedings (OSTI)

AVT PortalPortal HomeEAC Funded ResearchAdditional AVT Research Technology TransitionStandards & CertificationAVT Related Resources ...

2013-07-25T23:59:59.000Z

483

SERIES B: Operations Research  

E-Print Network (OSTI)

search was supported by Grant-in-Aid for Scientific Research (B) 19310096. ko- ... research was supported by the Doctoral Scholarship of the German Academic

484

Young Scientist Research Award  

Science Conference Proceedings (OSTI)

Recognizing substantial research contributions by someone 36 years of age or younger. Young Scientist Research Award Divisions achievement agricultural analytical application award awards biotechnology detergents distinguished division Divisions

485

YOUNG RESEARCHER SYMPOSIUM  

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

2 BROOKHAVEN NATIONAL LABORATORY CALL FOR PAPERS YOUNG RESEARCHER SYMPOSIUM 2012 BROOKHAVEN NATIONAL LABORATORY YOUNG RESEARCHER SYMPOSIUM 2012 BROOKHAVEN NATIONAL LABORATORY YOUNG...

486

YOUNG RESEARCHER SYMPOSIUM  

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

3 BROOKHAVEN NATIONAL LABORATORY CALL FOR PAPERS YOUNG RESEARCHER SYMPOSIUM 2012 BROOKHAVEN NATIONAL LABORATORY YOUNG RESEARCHER SYMPOSIUM 2012 BROOKHAVEN NATIONAL LABORATORY YOUNG...

487

Solar Energy Research Center  

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

Solar Energy Research Center PROJECT DESCRIPTION SERC rendering The SERC building will be a 39,000 gsf building designed to house research laboratories and offices devoted to...

488

NREL: Biomass Research - Facilities  

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

Facilities At NREL's state-of-the-art biomass research facilities, researchers design and optimize processes to convert renewable biomass feedstocks into transportation fuels and...

489

Research Conduct Policies  

Office of Science (SC) Website

Research Conduct Policies Basic Energy Sciences (BES) BES Home About Research Materials Sciences & Engineering (MSE) Chemical Sciences, Geosciences, and Biosciences (CSGB)...

490

Brookhaven Medical Research Reactor  

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

Medical Research Reactor BMRR The last of the Lab's reactors, the Brookhaven Medical Research Reactor (BMRR), was shut down in December 2000. The BMRR was a three megawatt...

491

NETL: Onsite Research  

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

Research Onsite Research Publications Computed Tomography and Statistical Analysis of Bubble Size Distributions in Atmospheric-Generated Foamed Cement (August 9, 2013) Comparison...

492

NREL: Photovoltaics Research - Solar Energy Research Facility  

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

Solar Energy Research Facility Solar Energy Research Facility Photo of the Solar Energy Research Facility. The exterior stepped clerestory of the Solar Energy Research Facility. Photovoltaics (PV) and basic energy sciences are two major research areas conducted in the Solar Energy Research Facility (SERF). The building incorporates a multitude of energy saving features that make it one of the government's most energy efficient buildings with 40 percent lower energy costs than similar buildings designed to meet federal energy standards. The SERF houses three adjoining modules each containing a laboratory pod and an office pod. Laboratories in the west module are used to develop semiconductor material for high-efficiency crystalline solar cells. Laboratories in the center module are used to fabricate prototype solar

493

Using percolation techniques to estimate interwell connectivity probability  

E-Print Network (OSTI)

Reservoir connectivity is often an important consideration for reservoir management. For example, connectivity is an important control on waterflood sweep efficiency and requires evaluation to optimize injection well rates. The uncertainty of sandbody distributions, however, can make interwell connectivity prediction extremely difficult. Percolation models are a useful tool to simulate sandbody connectivity behavior and can be used to estimate interwell connectivity. This study discusses the universal characteristics of different sandbody percolation models and develops an efficient percolation method to estimate interwell connectivity. Using King and others results for fluid travel time between locations in a percolation model, we developed a method to estimate interwell connectivity. Three parameters are needed to use this approach: the sandbody occupied probabilitysandp, the dimensionless reservoir length, and the well spacing. To evaluate this new percolation method, the procedure was coded using Visual Basic and Mathematica and the results compared to those from two other methods, a simple geometrical model and Monte Carlo simulation. All these methods were applied to estimate interwell connectivity for the D1, D2, and D3 intervals in the Monument Butte field. The results suggest that the new percolation method can give reasonable effective-square sandbody dimensions and can estimate the interwell connectivity accurately for thin intervals with sandp in the 60% to 80% range. The proposed method requires that the reservoir interval for evaluation be sufficiently thin so that 2D percolation results can be applied. To extend the method to 3D cases, we propose an approach that can be used to estimate interwell connectivity for reservoirs having multiple, noncommunicating layers, and that considers the weight of each interval for multilayer estimation. This approach is applied to the three-layer case of Monument Butte field and the estimates showed the method gives useful results for well pattern design. For example, water saturation and interval thickness affect the weight of each interval to be included in the multilayer estimation. For thick intervals or heterogeneous sandbody distributions, the percolation method developed here is not suitable because it assumes thin layers. Future percolation research will be needed to adapt this new percolation method.

Li, Weiqiang

2007-08-01T23:59:59.000Z

494

Low Dose Radiation Research Program: Research Highlights  

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

energy, are the surrounding unirradiated cells also at an increased risk of cancer? Latest Research, Response to Fukushima, Integrating Low Dose into Policy-All Featured at...

495

Sandia National Laboratories: Research: Laboratory Directed Research...  

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

Encouraging creative research to innovate solutions for our nation's greatest challenges. National laboratories have been entrusted with the role of serving as incubators for...

496

Sandia National Laboratories: Research: Research Foundations...  

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

Starodub and Kevin McCarty around the Low Energy Electron Microscope used to study graphene growth. Sandia's Materials Science Research Foundation works to understand materials...

497

The Federal Highway Administration Gasohol Consumption Estimation Model  

SciTech Connect

The Federal Highway Administration (FHWA) is responsible for estimating the portion of Federal highway funds attributable to each State. The process involves use of State-reported data (gallons) and a set of estimation models when accurate State data is unavailable. To ensure that the distribution of funds is equitable, FHWA periodically reviews the estimation models. Estimation of the use of gasohol is difficult because of State differences in the definition of gasohol, inability of many States to separate and report gasohol usage from other fuel types, changes in fuel composition in nonattainment areas to address concerns over the use of certain fuel additives, and the lack of a valid State-level surrogate data set for gasohol use. Under the sponsorship of FHWA, Oak Ridge National Laboratory (ORNL) reviewed the regression-based gasohol estimation model that has been in use for several years. Based on an analytical assessment of that model and an extensive review of potential data sets, ORNL developed an improved rule-based model. The new model uses data from Internal Revenue Service, Energy Information Administration, Environmental Protection Agency, Department of Energy, ORNL, and FHWA sources. The model basically consists of three parts: (1) development of a controlled total of national gasohol usage, (2) determination of reliable State gasohol consumption data, and (3) estimation of gasohol usage for all other States. The new model will be employed for the 2004 attribution process. FHWA is currently soliciting comments and inputs from interested parties. Relevant data, as identified, will be pursued and refinements will be made by the research team if warranted.

Hwang, HL

2003-08-28T23:59:59.000Z

498

Robust Talker Direction Estimation Based on Weighted CSP Analysis and Maximum Likelihood Estimation  

Science Conference Proceedings (OSTI)

This paper describes a new talker direction estimation method for front-end processing to capture distant-talking speech by using a microphone array. The proposed method consists of two algorithms: One is a TDOA (Time Delay Of Arrival) estimation algorithm ... Keywords: robust talker direction estimation, CSP analysis, CSP coefficient subtraction, ML estimation, microphone array

Yuki Denda; Takanobu Nishiura; Yoichi Yamashita

2006-03-01T23:59:59.000Z

499

Thermodynamics Research Center Group  

Science Conference Proceedings (OSTI)

Thermodynamics Research Center. Welcome. TRC supplies thermodynamic properties tables, thermophysical properties data, models, standards ...

2012-11-14T23:59:59.000Z

500

Thermodynamics Research Center - Thermophysical ...  

Science Conference Proceedings (OSTI)

Thermodynamics Research Center. TRC supplies thermodynamic properties tables, thermophysical properties data, models, standards and ...