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Note: This page contains sample records for the topic "resolution radiometer avhrr" 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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1

The Enhanced NOAA Global Land Dataset from the Advanced Very High Resolution Radiometer  

Science Conference Proceedings (OSTI)

Global mapped data of reflected radiation in the visible (0.63 ?m) and near-infrared (0.85 ?m) wavebands of the Advanced Very High Resolution Radiometer (AVHRR) onboard National Oceanic and Atmospheric Administration satellites have been ...

Garik Gutman; Dan Tarpley; Aleksandr Ignatov; Steve Olson

1995-07-01T23:59:59.000Z

2

Operational Ocean Search and Rescue Using AVHRR: Cloud Limitations  

Science Conference Proceedings (OSTI)

Sea surface currents can be derived from sequential Advanced Very High Resolution Radiometer (AVHRR) images. However, the operational feasibility of deriving ocean surface currents from AVHRR is severely limited by the inability of AVHRR to ...

J. E. Dick O’Donnell

1999-03-01T23:59:59.000Z

3

ARM - Instrument - avhrr  

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

govInstrumentsavhrr govInstrumentsavhrr Documentation AVHRR : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Advanced Very High Resolution Radiometer (AVHRR) Instrument Categories Satellite Observations General Overview Measurements from the Advanced Very High Resolution Radiometer (AVHRR) on the NOAA polar orbiting satellites taken over the NSA, SHB, SGP, and TWP sites are available for distribution to the ARM community. The files are in HDF. The AVHRR data from the Australian Bureau of Meteorology (BOM) Darwin site have not yet been converted to HDF. The raw data are in ASDA (Australian Satellite Data Archive) Format.. Output Datastreams avhrr10 : AVHRR: albedo and brightness temp., NOAA-10 Satellite

4

ARM - Datastreams - avhrr12  

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

2 2 Documentation XDC documentation Data Quality Plots ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Datastream : AVHRR12 AVHRR: albedo and brightness temp., NOAA-12 Satellite Active Dates 1994.07.22 - 2007.08.09 Measurement Categories Radiometric Originating Instrument Advanced Very High Resolution Radiometer (AVHRR) Measurements The measurements below provided by this product are those considered scientifically relevant. Measurement Variable Shortwave narrowband radiance avhrr_ch1 Shortwave narrowband radiance avhrr_ch2 Longwave narrowband radiance avhrr_ch3 Longwave narrowband radiance avhrr_ch4 Longwave narrowband radiance avhrr_ch5 Locations North Slope Alaska NSA X1 Browse Data External Data (satellites and others)

5

ARM - Datastreams - avhrr10  

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

Documentation XDC documentation Data Quality Plots ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Datastream : AVHRR10 AVHRR: albedo and brightness temp., NOAA-10 Satellite Active Dates 1994.09.15 - 1999.10.09 Measurement Categories Radiometric Originating Instrument Advanced Very High Resolution Radiometer (AVHRR) Measurements The measurements below provided by this product are those considered scientifically relevant. Measurement Variable Shortwave narrowband radiance avhrr_ch1 Shortwave narrowband radiance avhrr_ch2 Longwave narrowband radiance avhrr_ch3 Longwave narrowband radiance avhrr_ch4 Longwave narrowband radiance avhrr_ch5 Locations North Slope Alaska NSA X1 Browse Data External Data (satellites and others)

6

Scientific Basis and Initial Evaluation of the CLAVR-1 Global Clear/Cloud Classification Algorithm for the Advanced Very High Resolution Radiometer  

Science Conference Proceedings (OSTI)

An algorithm for the remote sensing of global cloud cover using multispectral radiance measurements from the Advanced Very High Resolution Radiometer (AVHRR) on board National Oceanic and Atmospheric Administration (NOAA) polar-orbiting ...

Larry L. Stowe; Paul A. Davis; E. Paul McClain

1999-06-01T23:59:59.000Z

7

Automatic Adjustment of AVHRR Navigation  

Science Conference Proceedings (OSTI)

An automatic adjustment method of the Advanced Very High-Resolution Radiometer (AVHRR) images navigation has been developed for operational use at the Centre de Météorologic Spatiale (CMS) in Lannion, France. Selected coastal landmarks are ...

Philippe Bordes; Pascal Brunel; Anne Marsouin

1992-02-01T23:59:59.000Z

8

Detection of Multilayer Cirrus Cloud Systems Using AVHRR Data: Verification Based on FIRE II IFO Composite Measurements  

Science Conference Proceedings (OSTI)

A numerical scheme has been developed to identify multilayer cirrus cloud systems using Advanced Very Higher Resolution Radiometer (AVHRR) data. It is based on the physical properties of the AVHRR channels 1?2 reflectance ratios, the brightness ...

S. C. Ou; K. N. Liou; B. A. Baum

1996-02-01T23:59:59.000Z

9

Solar Radiation Mapping from NOAA AVHRR Data in Catalonia, Spain  

Science Conference Proceedings (OSTI)

A statistical model is presented for the determination of hourly global solar radiation from the National Oceanic and Atmospheric Administration advanced very high resolution radiometer (NOAA AVHRR) satellite data, which provide wide coverage ...

Henry Flores Tovar; Jose M. Baldasano

2001-11-01T23:59:59.000Z

10

An AVHRR Multiple Cloud-Type Classification Package  

Science Conference Proceedings (OSTI)

Using imagery from NOAA’s Advanced Very High Resolution Radiometer (AVHRR) orbiting sensor, one of the authors (RLB) earlier developed a probabilistic neural network cloud classifier valid over the world’s maritime regions. Since then, the ...

Paul M. Tag; Richard L. Bankert; L. Robin Brody

2000-02-01T23:59:59.000Z

11

A Global Determination of Cloud Microphysics with AVHRR Remote Sensing  

Science Conference Proceedings (OSTI)

An algorithm is developed for determining the cloud optical thickness and effective particle radius simultaneously on a global scale using Advanced Very High Resolution Radiometer (AVHRR) multispectral radiance data. In the algorithm, the ...

Kazuaki Kawamoto; Teruyuki Nakajima; Takashi Y. Nakajima

2001-05-01T23:59:59.000Z

12

Using MODIS to Estimate Cloud Contamination of the AVHRR Data Record  

Science Conference Proceedings (OSTI)

A study of the improvement in cloud-masking capability of data from a Moderate Resolution Imaging Spectroradiometer (MODIS) relative to data from an Advanced Very High Resolution Radiometer (AVHRR) is performed. MODIS offers significant advances ...

Andrew K. Heidinger; Venkata Rao Anne; Charles Dean

2002-05-01T23:59:59.000Z

13

Evaluation of an AVHRR Cloud Detection and Classification Method over the Central Arctic Ocean  

Science Conference Proceedings (OSTI)

A cloud classification method that uses both multispectral and textural features with a maximum likelihood discriminator is applied to full-resolution AVHRR (Advanced Very High Resolution Radiometer) data from 100 NOAA polar-orbiter overpasses ...

Dan Lubin; Esther Morrow

1998-02-01T23:59:59.000Z

14

Calibration of METEOSAT Infrared Radiometer using Split Window Channels of NOAA AVHRR  

Science Conference Proceedings (OSTI)

A multispectral/multiangular procedure is proposed to calibrate the infrared channel of METEOSAT-2 IR 1 (760–980 cm?1), using the radiances of NOAA-7 AVHRR channels 4 (870–980 cm?1) and 5 (795–885 cm?1). The METEOSAT radiance can be successfully ...

A. Asem; P. Y. Deschamps; D. Ho

1987-12-01T23:59:59.000Z

15

Climate Parameters from Satellite Spectral Measurements. Part 1: Collocated AVHRR and HIRS/2 Observations of Spectral Greenhouse Parameter  

Science Conference Proceedings (OSTI)

An automated method of monitoring various climate parameters using collocated Advanced Very High Resolution Radiometer (AVHRR) and High-Resolution Infrared Sounder-2 (HIRS/2) observations has been developed. The method, referred to as CHAPS (...

Richard A. Frey; S. A. Ackerman; Brian J. Soden

1996-02-01T23:59:59.000Z

16

Application of AVHRR/3 Imagery for the Improved Detection of Thin Cirrus Clouds and Specification of Cloud-Top Phase  

Science Conference Proceedings (OSTI)

A multisensor, data fusion technique has been developed that merges the spectral signatures of ice and water clouds in Advanced Very High Resolution Radiometer (AVHRR) imagery with cloud-top pressure analyses derived from the High-Resolution ...

Keith D. Hutchison

1999-12-01T23:59:59.000Z

17

Improved Detection of Hotspots using the AVHRR 3.7-um Channel  

Science Conference Proceedings (OSTI)

The 3.7-?m channel on-board the National Oceanic and Atmospheric Administration's (NOAA) Advanced Very High Resolution Radiometer (AVHRR) provides the unique capability to detect small, but hot, surface features. We present an image-processing ...

Thomas F. Lee; Paul M. Tag

1990-12-01T23:59:59.000Z

18

Comparison of an Experimental NOAA AVHRR Cloud Dataset with Other Observed and Forecast Cloud Datasets  

Science Conference Proceedings (OSTI)

CLAVR [cloud from AVHRR (Advanced Very High Resolution Radiometer)] is a global cloud dataset under development at NOAA/NESDIS (National Environmental Satellite, Data, and Information Service). Total cloud amount from two experimental cases, 9 ...

Yu-Tai Hou; Kenneth A. Campana; Kenneth E. Mitchell; Shi-Keng Yang; Larry L. Stowe

1993-12-01T23:59:59.000Z

19

Operational Aerosol Observations (AEROBS) from AVHRR/3 On Board NOAA-KLM Satellites  

Science Conference Proceedings (OSTI)

Since 1988, the National Oceanic and Atmospheric Administration (NOAA) has provided operational aerosol observations (AEROBS) from the Advanced Very High Resolution Radiometer (AVHRR/2) on board the afternoon NOAA satellites [nominal equator ...

Alexander Ignatov; John Sapper; Stephen Cox; Istvan Laszlo; Nicholas R. Nalli; Katherine B. Kidwell

2004-01-01T23:59:59.000Z

20

Surface Albedo over the Arctic Ocean Derived from AVHRR and Its Validation with SHEBA Data  

Science Conference Proceedings (OSTI)

A method is presented for retrieving the broadband albedo over the Arctic Ocean using advanced very high resolution radiometer (AVHRR) data obtained from NOAA polar-orbiting satellites. Visible and near-infrared albedos over snow and ice surfaces ...

Xiaozhen Xiong; Knut Stamnes; Dan Lubin

2002-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

Remote Sensing of Surface and Cloud Properties in the Arctic from AVHRR Measurements  

Science Conference Proceedings (OSTI)

Algorithms to retrieve cloud optical depth and effective radius in the Arctic using Advanced Very High Resolution Radiometer (AVHRR) data are developed, using a comprehensive radiative transfer model in which the atmosphere is coupled to the ...

W. Han; K. Stamnes; Dan Lubin

1999-07-01T23:59:59.000Z

22

Removing Unwanted Fluctuations in the AVHRR Thermal Calibration Data Using Robust Techniques  

Science Conference Proceedings (OSTI)

The study deals with analysis of thermal calibration of the Advanced Very High Resolution Radiometer (AVHRR) aboard National Oceanic and Atmospheric Administration (NOAA) spacecrafts. In particular, the effects caused by various types of ...

A. P. Trishchenko

2002-12-01T23:59:59.000Z

23

Removal of Contaminated Pixels from the Desert Target for AVHRR Vicarious Calibration  

Science Conference Proceedings (OSTI)

Desert-based vicarious calibration plays an important role in generating long-term reliable satellite radiances for the visible and near-infrared channels of the Advanced Very High Resolution Radiometer (AVHRR). Lacking an onboard calibration ...

Fangfang Yu; Xiangqian Wu

2009-07-01T23:59:59.000Z

24

Evaluating the Potential for Retrieving Aerosol Optical Depth over Land from AVHRR Pathfinder Atmosphere Data  

Science Conference Proceedings (OSTI)

In spite of numerous studies on the remote sensing of aerosols from satellites, the magnitude of aerosol climate forcing remains uncertain. However, data from the Advanced Very High Resolution Radiometer (AVHRR) Pathfinder-Atmosphere (PATMOS) ...

Kenneth R. Knapp; Larry L. Stowe

2002-02-01T23:59:59.000Z

25

An Improved Method to Derive Surface Albedo from Narrowband AVHRR Satellite Data: Narrowband to Broadband Conversion  

Science Conference Proceedings (OSTI)

A method was investigated to estimate broadband surface shortwave albedo from the narrowband reflectances obtained by the Advanced Very High Resolution Radiometers (AVHRRs) on board the polar orbiting satellites. Field experiments were conducted ...

J. Song; W. Gao

1999-02-01T23:59:59.000Z

26

A Method for Determining the Sensor Degradation Rates of NOAA AVHRR Channels 1 and 2  

Science Conference Proceedings (OSTI)

A method is described to determine the degradation rates of NOAA Advanced Very High Resolution Radiometer (AVHRR) visible channels. Thirty-eight desert targets (each 20 km × 20 km) were selected over the northwest region of China after testing ...

A. Wu; Q. Zhonc

1994-01-01T23:59:59.000Z

27

Using MetOp-A AVHRR Clear-Sky Measurements to Cloud-Clear MetOp-A IASI Column Radiances  

Science Conference Proceedings (OSTI)

High spatial resolution measurements from the Advanced Very High Resolution Radiometer (AVHRR) on the Meteorological Operation (MetOp)-A satellite that are collocated to the footprints from the Infrared Atmospheric Sounding Interferometer (IASI) ...

Eric S. Maddy; Thomas S. King; Haibing Sun; Walter W. Wolf; Christopher D. Barnet; Andrew Heidinger; Zhaohui Cheng; Mitchell D. Goldberg; Antonia Gambacorta; Chen Zhang; Kexin Zhang

2011-09-01T23:59:59.000Z

28

The Pathfinder Atmospheres Extended (PATMOS-x) AVHRR Climate Data Set  

Science Conference Proceedings (OSTI)

The AVHRR PATMOS-x data set offers over three decades of global observations from the NOAA Polar Orbiting System (POES) and the EUMETSAT (MetOP) satellite series. The Advanced Very High Resolution Radiometer (AVHRR) has flown since 1978 and continues to ...

Andrew K. Heidinger; Michael J. Foster; Andi Walther; Xuepeng (Tom) Zhao

29

A Global 9-yr Biophysical Land Surface Dataset from NOAA AVHRR Data  

Science Conference Proceedings (OSTI)

Global, monthly, 1° by 1° biophysical land surface datasets for 1982–90 were derived from data collected by the Advanced Very High Resolution Radiometer (AVHRR) on board the NOAA-7, -9, and -11 satellites. The AVHRR data are adjusted for sensor ...

S. O. Los; N. H. Pollack; M. T. Parris; G. J. Collatz; C. J. Tucker; P. J. Sellers; C. M. Malmström; R. S. DeFries; L. Bounoua; D. A. Dazlich

2000-04-01T23:59:59.000Z

30

Arctic Sea Ice Albedo from AVHRR  

Science Conference Proceedings (OSTI)

The seasonal cycle of surface albedo of sea ice in the Arctic is estimated from measurements made with the Advanced Very High Resolution Radiometer (AVHRR) on the polar-orbiting satellites NOAA-10 and NOAA-11. The albedos of 145 200-km-square ...

R. W. Lindsay; D. A. Rothrock

1994-11-01T23:59:59.000Z

31

A Physical Method for the Calibration of the AVHRR/3 Thermal IR Channels 1: The Prelaunch Calibration Data  

Science Conference Proceedings (OSTI)

The absolute accuracy of the thermal infrared (IR) radiances and brightness temperatures derived from the Advanced Very High Resolution Radiometer (AVHRR) is still unknown, with major sources of error not yet fully understood. This is despite the ...

Jonathan P. D. Mittaz; Andrew R. Harris; Jerry T. Sullivan

2009-05-01T23:59:59.000Z

32

An Algorithm to Infer Continental-Scale Albedo from AVHRR Data, Land Cover Class, and Field Observations of Typical BRDFs  

Science Conference Proceedings (OSTI)

A method to derive bottom-of-atmosphere land surface albedos from Advanced Very High Resolution Radiometer (AVHRR) satellite measurements is presented. The algorithm described uses kernel-based bidirectional reflectance distribution function (...

Nicholas C. Strugnell; Wolfgang Lucht

2001-04-01T23:59:59.000Z

33

A Pixel-Scale Algorithm of Cloud Type, Layer, and Amount for AVHRR Data. Part I: Nighttime  

Science Conference Proceedings (OSTI)

An automated pixel-scale algorithm has been developed to retrieve cloud type, related cloud layer(s), and the fractional coverages for all cloud layers in each AVHRR (Advanced Very High Resolution Radiometer) pixel at night. In the algorithm, ...

Gang Luo; Paul A. Davis; Larry L. Stowe; E. Paul McClain

1995-10-01T23:59:59.000Z

34

Removal of the Solar Component in AVHRR 3.7-µm Radiances for the Retrieval of Cirrus Cloud Parameters  

Science Conference Proceedings (OSTI)

A numerical scheme has been developed to remove the solar component in the Advanced Very High Resolution Radiometer (AVHRR) 3.7-µm channel for the retrieval of cirrus parameters during daytime. This method uses a number of prescribed threshold ...

N. X. Rao; S. C. Ou; K. N. Liou

1995-02-01T23:59:59.000Z

35

Spatial and temporal responses of different crop-growing environments to agricultural drought: a study in Haryana state, India using NOAA AVHRR data  

Science Conference Proceedings (OSTI)

Spatial and temporal responses to agricultural drought of different districts with different crop-growing environments were assessed using National Oceanic & Atmospheric Administration (NOAA) Advanced Very High Resolution Radiometer (AVHRR)-derived ...

C. S. Murthy; M. V. R. Sesha Sai; K. Chandrasekar; P. S. Roy

2009-01-01T23:59:59.000Z

36

Antarctic Cloud Radiative Forcing at the Surface Estimated from the AVHRR Polar Pathfinder and ISCCP D1 Datasets, 1985–93  

Science Conference Proceedings (OSTI)

Surface cloud radiative forcing from the newly extended Advanced Very High Resolution Radiometer (AVHRR) Polar Pathfinder (APP-x) dataset and surface cloud radiative forcing calculated using cloud and surface properties from the International ...

Michael J. Pavolonis; Jeffrey R. Key

2003-06-01T23:59:59.000Z

37

Characterization of the Interannual and Intraseasonal Variability of West African Vegetation between 1982 and 2002 by Means of NOAA AVHRR NDVI Data  

Science Conference Proceedings (OSTI)

The interannual and intraseasonal variability of West African vegetation over the period 1982–2002 is studied using the normalized difference vegetation index (NDVI) from the Advanced Very High Resolution Radiometer (AVHRR).

N. Philippon; L. Jarlan; N. Martiny; P. Camberlin; E. Mougin

2007-04-01T23:59:59.000Z

38

Global Two-Channel AVHRR Retrievals of Aerosol Properties over the Ocean for the Period of NOAA-9 Observations and Preliminary Retrievals Using NOAA-7 and NOAA-11 Data  

Science Conference Proceedings (OSTI)

Described is an improved algorithm that uses channel 1 and 2 radiances of the Advanced Very High Resolution Radiometer (AVHRR) to retrieve the aerosol optical thickness and Ångström exponent over the ocean. Specifically discussed are recent ...

Igor V. Geogdzhayev; Michael I. Mishchenko; William B. Rossow; Brian Cairns; Andrew A. Lacis

2002-02-01T23:59:59.000Z

39

Combining Microwave Radiometer and Wind Profiler Radar Measurements for High-Resolution Atmospheric Humidity Profiling  

Science Conference Proceedings (OSTI)

A self-consistent remote sensing physical method to retrieve atmospheric humidity high-resolution profiles by synergetic use of a microwave radiometer profiler (MWRP) and wind profiler radar (WPR) is illustrated. The proposed technique is based ...

Laura Bianco; Domenico Cimini; Frank S. Marzano; Randolph Ware

2005-07-01T23:59:59.000Z

40

Automated Cloud Classification of Global AVHRR Data Using a Fuzzy Logic Approach  

Science Conference Proceedings (OSTI)

A fuzzy logic classification (FLC) methodology is proposed to achieve the two goals of this paper: 1) to discriminate between clear sky and clouds in a 32 × 32 pixel array, or sample, of 1.1-km Advanced Very High Resolution Radiometer (AVHRR) ...

Bryan A. Baum; Vasanth Tovinkere; Jay Titlow; Ronald M. Welch

1997-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

A Critical Examination of Satellite Cloud Retrieval from AVHRR in the Arctic Using SHEBA Data  

Science Conference Proceedings (OSTI)

This study examines the validity and limitations associated with retrieval of cloud optical depth ? and effective droplet size re in the Arctic from Advanced Very High Resolution Radiometer (AVHRR) channels 2 (0.725–1.10 ?m), 3 (3.55–3.93 ?m), ...

Xiaozhen Xiong; Dan Lubin; Wei Li; Knut Stamnes

2002-12-01T23:59:59.000Z

42

The Advanced Very High Resolution Radiometer (AVHRR) Pathfinder Atmosphere (PATMOS) Climate Dataset: Initial Analyses and Evaluations  

Science Conference Proceedings (OSTI)

As part of the joint National Oceanic and Atmospheric Administration–National Aeronautics and Space Administration (NOAA–NASA) Pathfinder program, the NOAA/National Environmental Satellite, Data and Information Service (NESDIS) has created a ...

Larry L. Stowe; Herbert Jacobowitz; George Ohring; Kenneth R. Knapp; Nicholas R. Nalli

2002-06-01T23:59:59.000Z

43

The Usefulness of In-Flight Measurements of Space Count to Improve Calibration of the AVHRR Solar Reflectance Bands  

Science Conference Proceedings (OSTI)

The solar reflectance bands (SRB; centered at ?1 = 0.63, ?2 = 0.83, and ?3A = 1.61 ?m) of the Advanced Very High Resolution Radiometers (AVHRR) flown on board NOAA satellites are often referred to as noncalibrated in-flight. In contrast, the ...

Alexander Ignatov; Changyong Cao; Jerry Sullivan; Robert Levin; Xiangqian Wu; Roy Galvin

2005-02-01T23:59:59.000Z

44

Aerosol Retrievals from Individual AVHRR Channels. Part II: Quality Control, Probability Distribution Functions, Information Content, and Consistency Checks of Retrievals  

Science Conference Proceedings (OSTI)

This second part of a two-part study evaluates retrievals of aerosol optical depths, ?1 and ?2, in Advanced Very High Resolution Radiometer (AVHRR) channels 1 and 2 centered at ?1 = 0.63 and ?2 = 0.83 ?m, and an effective Ångström exponent, ?, ...

Alexander Ignatov; Larry Stowe

2002-02-01T23:59:59.000Z

45

Infrared Radiative Properties of the Antarctic Plateau from AVHRR Data. Part I: Effect of the Snow Surface  

Science Conference Proceedings (OSTI)

The effective scene temperature, or “brightness temperature,” measured in channel 3 (3.5–3.9 ?m) of the Advanced Very High Resolution Radiometer (AVHRR) is shown to be sensitive, in principle, to the effective particle size of snow grains on the ...

Joannes Berque; Dan Lubin; Richard C. J. Somerville

2004-02-01T23:59:59.000Z

46

A Change Detection Algorithm for Retrieving High-Resolution Soil Moisture From SMAP Radar and Radiometer Observations  

E-Print Network (OSTI)

A change detection algorithm has been developed in order to obtain high-resolution soil moisture estimates from future Soil Moisture Active and Passive (SMAP) L-band radar and radiometer observations. The approach combines ...

Piles, Maria

47

The Global Trend in Sea Surface Temperature from 20 Years of Advanced Very High Resolution Radiometer Data  

Science Conference Proceedings (OSTI)

The trend in sea surface temperature has been determined from 20 yr of Advanced Very High Resolution Radiometer Pathfinder data (version 5). The data span the period from January 1985 to December 2004, inclusive. The linear trends were calculated ...

S. A. Good; G. K. Corlett; J. J. Remedios; E. J. Noyes; D. T. Llewellyn-Jones

2007-04-01T23:59:59.000Z

48

High-Resolution Imaging of Rain Systems with the Advanced Microwave Precipitation Radiometer  

Science Conference Proceedings (OSTI)

An Advanced Microwave Precipitation Radiometer (AMPR) has been developed and flown in the NASA ER-2 high-altitude aircraft for imaging various atmospheric and surface processes, primarily the internal structure of rain clouds. The AMPR is a ...

Roy W. Spencer; Robbie E. Hood; Frank J. Lafontaine; Eric A. Smith; Robert Platt; Joe Galliano; Vanessa L. Griffin; Elena Lobl

1994-08-01T23:59:59.000Z

49

Inter-Comparison and Synergy Between the Two Long-Term Gloval Aerosol Products Derived from AVHRR and TOMS  

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

Inter-Comparison and Synergy Between the Inter-Comparison and Synergy Between the Two Long-Term Global Aerosol Products Derived from AVHRR and TOMS M.-J. Jeong and Z. Li Department of Meteorology University of Maryland College Park, Maryland D. A. Chu and S.-C. Tsay National Aeronautics and Space Administration Goddard Flight Center Greenbelt, Maryland Introduction Eighteen years of satellite-based monthly aerosol products have been derived from the advanced very high resolution radiometer (AVHRR) and total ozone mapping experiment spectrometer (TOMS) sensors. The two products differ in many regards rendering a great potential for developing an integrated product for climate studies. Presented here are some preliminary results of inter-comparison and synergy analyses. Global Aerosol Climatology

50

Solid-State Radiometer Measurements of Sea Surface Skin Temperature  

Science Conference Proceedings (OSTI)

Satellite sea surface skin temperature (SSST) maps are readily available from precisely calibrated radiometer systems such as the ERS along-track scanning radiometer and, in the near future, from the moderate-resolution imaging spectroradiometer. ...

C. J. Donlon; S. J. Keogh; D. J. Baldwin; I. S. Robinson; I. Ridley; T. Sheasby; I. J. Barton; E. F. Bradley; T. J. Nightingale; W. Emery

1998-06-01T23:59:59.000Z

51

Radiation Energy Budget Studies Using Collocated AVHRR and ERBE Observations  

Science Conference Proceedings (OSTI)

Changes in the energy balance at the top of the atmosphere are specified as a function of atmospheric and surface properties using observations from the Advanced Very High Resolution Radiometer (AVURR) and the Earth Radiation budget Experiment (...

Steven A. Ackerman; Toshiro Inoue

1994-03-01T23:59:59.000Z

52

Investigation of flood inundation on playas within the Zone of Chotts, using a time-series of AVHRR  

E-Print Network (OSTI)

Our principal objectives were to examine the application of a time-series of advanced very high-resolution radiometer (AVHRR) data to contrast the inundation regimes of a range of large, climatically sensitive playas in the Zone of Chotts regions of southern Tunisia and northeastern Algeria. In doing so, we aimed to: (i) refine methods for monitoring monthly changes in lake areas and seasonal water balance, building from previous studies; (ii) explore the extent to which simple hydrological models can be developed for individual playas; and (iii) compare the hydrologic response of individual playas to seasonal rainfall inputs within North Africa. Here, analyses were conducted using two time-series of AVHRR data (c.2 images per month) for southern Tunisia and northern Algeria (1983 -- 1993 and 1987 -- 1999), with coincident meteorological data. These data were used to detect and monitor inundation events within specific playa catchments in the Zone of Chotts region. Key analyses methods included: (a) the use of reflectance profiles for each time-series to infer inundation processes for each playa and (b) the extraction of lake areas from sequential image data to determine the extent of inundation with an accuracy of between 2% and 6% (depending on lake size). For those playas which were found to inundate as a direct result of precipitation records of lake area change were used to drive simple hydrological models to allowed mean monthly precipitation ( P), monthly effective precipitation (P-E), and monthly evaporation (E) to be estimated. The techniques presented here make an important contribution to our understanding of the hydrology of playas in this region. Results for individual playas also suggest that these techniques may be useful in highlighting the dynamic respo...

Bryant Rainey Department; R. G. Bryant; M. P. Rainey

2002-01-01T23:59:59.000Z

53

Radiometer Calibration Trends  

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

Radiometer Calibration Trends S. M. Wilcox, T. L. Stoffel, and D. R. Myers National Renewable Energy Laboratory Golden, Colorado Abstract Calibrations of Atmospheric Radiation...

54

DRAFT Microwave Radiometer Profiler Handbook  

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

Microwave Radiometer Profiler Handbook Evaluation of a New Multi-Frequency Microwave Radiometer for Measuring the Vertical Distribution of Temperature, Water Vapor, and Cloud...

55

Surface Temperature Observations from AVHRR in FIFE  

Science Conference Proceedings (OSTI)

Observations of the surface radiometric temperature by the AVHRR sensor on board the NOAA-9 satellite during the First ISLSCP (International Satellite Land Surface Climatology Project) Field Experiment conducted in central Kansas during 1987 are ...

T. J. Schmugge; G. M. Schmidt

1998-04-01T23:59:59.000Z

56

Global Data on Land Surface Parameters from NOAA AVHRR for Use in Numerical Climate Models  

Science Conference Proceedings (OSTI)

This paper reviews satellite datasets from the NOAA Advanced Very High Resolution Radiometer that could be employed in support of numerical climate modeling at regional and global scales. Presently available NOAA operational and research datasets ...

G. Garik Gutman

1994-05-01T23:59:59.000Z

57

Estimation of Surface Solar Global Radiation from NOAA AVHRR Data in High Latitudes  

Science Conference Proceedings (OSTI)

A physical method for estimating the instantaneous global irradiance and daily cumulative insolation based on Advanced Very High Resolution Radiometer data was developed and tested at high latitudes in a boreal subarctic region. The satellite ...

Vesa Laine; Ari Venäläinen; Martti Heikinheimo; Otto Hyvärinen

1999-12-01T23:59:59.000Z

58

A Study of Global Aerosol Optical Climatology with Two-Channel AVHRR Remote Sensing  

Science Conference Proceedings (OSTI)

Global distributions of the aerosol optical thickness and Ångström exponent are estimated from National Oceanic and Atmospheric Administration Advanced Very High Resolution Radiometer channel-1 and -2 radiances for four months in 1990. Global ...

Akiko Higurashi; Teruyuki Nakajima; Brent N. Holben; Alexander Smirnov; Robert Frouin; Bernadette Chatenet

2000-06-01T23:59:59.000Z

59

Microwave Radiometer (MWR) Handbook  

SciTech Connect

The Microwave Radiometer (MWR) provides time-series measurements of column-integrated amounts of water vapor and liquid water. The instrument itself is essentially a sensitive microwave receiver. That is, it is tuned to measure the microwave emissions of the vapor and liquid water molecules in the atmosphere at specific frequencies.

Morris, VR

2006-08-01T23:59:59.000Z

60

Loss-compensated radiometer  

SciTech Connect

A new radiometer concept is described and evaluated. Automatic dynamic electrical compensation is achieved by a high-gain feedback amplifier and low thermal inertia solar and compensating electrical sensors. With sufficiently high gain, compensation can increase accuracy to limits determined by amplifier drift. Equations governing instrument response are derived and analyzed. Initial measurements on a preliminary prototype confirm the validity of the concept which should yield a very accurate instrument with ''self calibrating'' features.

Lobo, P.C.

1984-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

Dual transmission grating based imaging radiometer for tokamak edge and divertor plasmas  

Science Conference Proceedings (OSTI)

The designs of single transmission grating based extreme ultraviolet (XUV) and vacuum ultraviolet (VUV) imaging spectrometers can be adapted to build an imaging radiometer for simultaneous measurement of both spectral ranges. This paper describes the design of such an imaging radiometer with dual transmission gratings. The radiometer will have an XUV coverage of 20-200 A with a {approx}10 A resolution and a VUV coverage of 200-2000 A with a {approx}50 A resolution. The radiometer is designed to have a spatial view of 16 Degree-Sign , with a 0.33 Degree-Sign resolution and a time resolution of {approx}10 ms. The applications for such a radiometer include spatially resolved impurity monitoring and electron temperature measurements in the tokamak edge and the divertor. As a proof of principle, the single grating instruments were used to diagnose a low temperature reflex discharge and the relevant data is also included in this paper.

Kumar, Deepak; Clayton, Daniel J.; Parman, Matthew; Stutman, Dan; Tritz, Kevin; Finkenthal, Michael [Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218 (United States)

2012-10-15T23:59:59.000Z

62

Estimation of Surface Energy Balance from Radiant Surface Temperature and NOAA AVHRR Sensor Reflectances over Agricultural and Native Vegetation  

Science Conference Proceedings (OSTI)

A model is developed to evaluate surface heat flux densities using the radiant surface temperature and red and near-infrared reflectances from the NOAA Advanced Very High Resolution Radiometer sensor. Net radiation is calculated from an empirical ...

Huang Xinmei; T. J. Lyons; R. C. G. Smith; J. M. Hacker; P. Schwerdtfeger

1993-08-01T23:59:59.000Z

63

A Naive Bayesian Cloud-Detection Scheme Derived from CALIPSO and Applied within PATMOS-x  

Science Conference Proceedings (OSTI)

The naive Bayesian methodology has been applied to the challenging problem of cloud detection with NOAA’s Advanced Very High Resolution Radiometer (AVHRR). An analysis of collocated NOAA-18/AVHRR and Cloud–Aerosol Lidar and Infrared Pathfinder ...

Andrew K. Heidinger; Amato T. Evan; Michael J. Foster; Andi Walther

2012-06-01T23:59:59.000Z

64

Polar Cloud and Surface Classification Using AVHRR Imagery: An Intercomparison of Methods  

Science Conference Proceedings (OSTI)

Six Advanced Very High-Resolution Radiometer local area coverage (AVHPR LAC) arctic scenes are classified into ten classes. These include water, solid sea ice, broken sea ice, snow-covered mountains, snow-free land, and five cloud types. Three ...

R. M. Welch; S. K. Sengupta; A. K. Goroch; P. Rabindra; N. Rangaraj; M. S. Navar

1992-05-01T23:59:59.000Z

65

Lighting Research Group: Facilities: Spectro-Radiometer  

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

Spectro-Radiometer Spectro-Radiometer Spectro-Radiometer spectro-radiometer Gonio-photometer | Integrating sphere | Power analyzer | Spectro-radiometer The spectro-radiometer is used to measure the light output of a light source at each wavelength. The part that looks like a video camera (to the far right in the picture) can look at each wavelength separately. The spectro-radiometer can also be used as a standard light meter and measure all visible wavelengths at once to obtain the total light output of a source. The console portion of the spectro-radiometer is used to display the meter readings and also to adjust measurement settings like the sensitivity. The computer is interfaced with the spectro-radiometer and is used to send commands to the machine and receive, store, and analyze the data.

66

Retrieval of Cirrus Microphysical Properties with a Suite of Algorithms for Airborne and Spaceborne Lidar, Radar, and Radiometer Data  

Science Conference Proceedings (OSTI)

Algorithms are developed to convert data streams from multiple airborne and spaceborne remote sensors into layer-averaged cirrus bulk microphysical properties. Radiometers such as the Moderate-Resolution Imaging Spectroradiometer (MODIS) observe ...

Yuying Zhang; Gerald G. Mace

2006-12-01T23:59:59.000Z

67

Narrow Field of View Zenith Radiometer (NFOV) Handbook  

SciTech Connect

The two-channel narrow field-of-view radiometer (NFOV2) is a ground-based radiometer that looks straight up and measures radiance directly above the instrument at wavelengths of 673 and 870 nm. The field-of-view of the instrument is 1.2 degrees, and the sampling time resolution is one second. Measurements of the NFOV2 have been used to retrieve optical properties for overhead clouds that range from patchy to overcast. With a one-second sampling rate of the NFOV2, faster than almost any other ARM Climate Research Facility (ACRF) instrument, we are able, for the first time, to capture changes in cloud optical properties at the natural time scale of cloud evolution.

Chiu, C; Marshak, A; Hodges, G; Barnard, JC; Schmelzer, J

2008-11-01T23:59:59.000Z

68

Calibration Service for Low-level Pulsed-Laser Radiometers ...  

Science Conference Proceedings (OSTI)

... be noted that not all pulse energies or peak ... both the peak-power and pulse-energy radiometers ... a single radiometer has not been reserved for NIST ...

2012-10-31T23:59:59.000Z

69

A Field Comparison among a Domeless Net Radiometer, Two Four-Component Net Radiometers, and a Domed Net Radiometer  

Science Conference Proceedings (OSTI)

The Kipp & Zonen NR-Lite is a newly designed domeless net radiometer. In preparation for the Oklahoma Atmospheric Surface-layer Instrumentation System (OASIS) Project, the NR-Lite was rigorously field tested for over eight months during 1998. ...

J. A. Brotzge; C. E. Duchon

2000-12-01T23:59:59.000Z

70

Microwave Radiometer-High Frequency (MWRHF) Handbook  

SciTech Connect

The 90/150-GHz Vapor Radiometer provides time-series measurements of brightness temperatures from two channels centered at 90 and 150 GHz. These two channels are sensitive to the presence of liquid water and precipitable water vapor.

Caddedu, MP

2011-03-17T23:59:59.000Z

71

Ground-Based Microwave Radiometer Measurements  

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

Ground-Based Microwave Radiometer Measurements Ground-Based Microwave Radiometer Measurements and Radiosonde Comparisons During the WVIOP2000 Field Experiment D. Cimini University of L'Aquila L'Aquil, Italy E. R. Westwater Cooperative Institute for Research in the Environmental Sciences University of Colorado National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado Y. Han Science System Applications National Aeronautics Space Administration Goddard Space Flight Center Greenbelt, Maryland S. Keihm Jet Propulsion Laboratory California Institute of Technology Pasadena, California Introduction During September to October 2000, a water vapor intensive operational period (WVIOP) was conducted at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP) Cloud and

72

ECE RADIOMETER UPGRADE ON THE DIII-D TOKAMAK  

SciTech Connect

OAK A271 ECE RADIOMETER UPGRADE ON THE DIII-D TOKAMAK. The electron cyclotron emission (ECE) heterodyne radiometer diagnostic on DIII-D has been upgraded with the addition of eight channels for a total of 40. The new, higher frequency channels allow measurements of electron temperature into the magnetic axis in discharges at maximum field, 2.15 T. The complete set now extends over the full usable range of second harmonic emission frequencies at 2.0 T covering radii from the outer edge inward to the location of third harmonic overlap on the high field side. Full coverage permits the measurement of heat pulses and magnetohydrodynamic (MHD) fluctuations on both sides of the magnetic axis. In addition, the symmetric measurements are used to fix the location of the magnetic axis in tokamak magnetic equilibrium reconstructions. Also, the new higher frequency channels have been used to determine central T{sub e} with good time resolution in low field, high density discharges using third harmonic ECE in the optically gray and optically thick regimes.

AUSTIN, ME; LOHR, J

2002-08-01T23:59:59.000Z

73

ARM's Broadband Radiometer Station (BRS) Data  

DOE Data Explorer (OSTI)

ARM's BRS data contains measurements of broadband shortwave and longwave, downwelling, upwelling, and normal radiation. The Broadband Radiometer Station (BRS) has collected data since 2001. Data Plots can be viewed for the BRS datastream through ARM's Thumbnail Browser. The primary site for BRS data collection is the Southern Great Plains (SGP).

74

Combining MSS and AVHRR imagery to assess vegetation biomass and dynamics in an arid pastoral ecosystem, Turkana District, Kenya  

Science Conference Proceedings (OSTI)

Landsat multi-spectral scanner (MSS) imagery was used to develop a vegetation type-biomass map of the 84,000 Km/sup 2/ Turkana District, Kenya. NOAA satellite advanced very high resolution radiometry (AVHRR) imagery was overlaid on the MSS map to trace the seasonal and annual dynamics of vegetation communities used by Turkana pastoral nomads, 1981-1984. Four regions (sub-sectional territories) were compared with respect to peak herbaceous biomass, woody canopy cover, and seasonal fluxes in total green biomass. Results demonstrated major variations among regions and between wet and dry season ranges within regions. Pastoral land use patterns appear to minimize effects of seasonal vegetation fluxes on livestock herds.

Ellis, J.E.; Swift, D.M.; Hart, T.C.; Dick, O.B.

1987-07-01T23:59:59.000Z

75

Intercomparison of Cloud Imagery from the DMSP OLS, NOAA AVHRR, GOES VISSR, and Landsat MSS  

Science Conference Proceedings (OSTI)

Concurrent visible and infrared imagery from four satellite sensors (DMSP OLS, NOAA AVHRR, GOES VISSR, Landsat MSS) have been intercompared. Inherent differences in observed cloud properties and cloud field analyses are noted due to individual ...

R. G. Isaacs; J. C. Barnes

1987-12-01T23:59:59.000Z

76

Nonlinear Multichannel Algorithms for Estimating Sea Surface Temperature with AVHRR Satellite Data  

Science Conference Proceedings (OSTI)

The familiar linear multichannel sea surface temperature algorithms (MCSST) for estimating sea surface temperature with AVHRR satellite data describe the solution in terms of a constant gamma parameter multiplied by the measured brightness ...

Charles C. Walton

1988-02-01T23:59:59.000Z

77

Nighttime Cloud Detection Over the Arctic Using AVHRR Data  

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

Cloud Detection Over the Arctic Cloud Detection Over the Arctic Using AVHRR Data D. A. Spangenberg, D. R. Doelling, and V. Chakrapani Analytical Services & Materials, Inc. Hampton, Virginia P. Minnis National Aeronautics and Space Administration Hampton, Virginia T. Uttal National Oceanic and Atmospheric Administration Boulder, Colorado Introduction Clouds play an important role in the Arctic energy budget. The magnitude and significance of the radiative impact of polar clouds, however, are not well known. Polar nocturnal clouds are often warmer or at the same temperature as the background snow surface, complicating cloud detection. Also, these clouds tend to be thin, with lower emittances than clouds occurring during the summer. Using only the infrared (IR) channels of satellite data to characterize cloud amount and distribution in the Arctic is

78

Comparisons of Daily Sea Surface Temperature Analyses for 2007–08  

Science Conference Proceedings (OSTI)

Six different SST analyses are compared with each other and with buoy data for the period 2007–08. All analyses used different combinations of satellite data [for example, infrared Advanced Very High Resolution Radiometer (AVHRR) and microwave ...

Richard W. Reynolds; Dudley B. Chelton

2010-07-01T23:59:59.000Z

79

Narrowband to Broadband Conversion with Spatially Autocorrelated Reflectance Measurements  

Science Conference Proceedings (OSTI)

A new technique for estimating broadband reflectance from Advanced Very High-Resolution Radiometer (AVHRR) narrowband reflectances in channel 1 and 2 is developed. The data used are simultaneous and coincident narrowband and broadband ...

Zhanqing Li; H. G. Leighton

1992-05-01T23:59:59.000Z

80

A Comparison of Satellite and In Situ–Based Sea Surface Temperature Climatologies  

Science Conference Proceedings (OSTI)

The purpose of this study is to present a satellite-derived sea surface temperature (SST) climatology based on Pathfinder Advanced Very High Resolution Radiometer (AVHRR) data and to evaluate it and several other climatologies for their ...

Kenneth S. Casey; Peter Cornillon

1999-06-01T23:59:59.000Z

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


81

A Study of the Aerosol Effect on a Cloud Field with Simultaneous Use of GCM Modeling and Satellite Observation  

Science Conference Proceedings (OSTI)

The indirect effect of aerosols was simulated by a GCM for nonconvective water clouds and was compared with remote sensing results from the Advanced Very High Resolution Radiometer (AVHRR) satellite-borne sensor for January, April, July, and ...

Kentaroh Suzuki; Teruyuki Nakajima; Atusi Numaguti; Toshihiko Takemura; Kazuaki Kawamoto; Akiko Higurashi

2004-01-01T23:59:59.000Z

82

Satellite Microphysical Retrievals for Land-Based Fog with Validation by Balloon Profiling  

Science Conference Proceedings (OSTI)

Digital data from the National Oceanic and Atmospheric Administration Advanced very High Resolution Radiometer (AVHRR) satellite instrument provides multispectral images in visible near-infrared and thermal infrared wave bands, which have been ...

Melanie A. Wetzel; Randolph D. Borys; Ling E. Xu

1996-06-01T23:59:59.000Z

83

Satellite Observations of Sea Surface Temperature Around the British Isles  

Science Conference Proceedings (OSTI)

TIROS-N Advanced Very High Resolution Radiometer (AVHRR) imagery has been used to study the temperature structure of the sea surface around the British Isles. We have combined the satellite imagery from both TIROS-N. METEOSAT, and conventional ...

R. W. Saunders; N. R. Ward; C. F. England; G. E. Hunt

1982-03-01T23:59:59.000Z

84

Comparison of Cirrus Height and Optical Depth Derived from Satellite and Aircraft Measurements  

Science Conference Proceedings (OSTI)

During the International Cirrus Experiment (ICE'89) simultaneous measurements of Cirrus cloud-top height and optical depth by satellite and aircraft have been taken. Data from the Advanced Very High Resolution Radiometer (AVHRR) onboard the NOAA ...

M. Kästner; K. T. Kriebel; R. Meerkötter; W. Renger; G. H. Ruppersberg; P. Wendling

1993-10-01T23:59:59.000Z

85

Model Calculations of Solar Spectral Irradiance in the 3.7-?m Band for Earth Remote Sensing Applications  

Science Conference Proceedings (OSTI)

Since the launch of the first Advanced Very High Resolution Radiometer (AVHRR) instrument aboard the Television and Infrared Observational Satellite (TIROS-N), measurements in the 3.7-?m atmospheric window have been exploited for use in cloud ...

Steven Platnick; Juan M. Fontenla

2008-01-01T23:59:59.000Z

86

A Validation of a Satellite Cloud Retrieval during ASTEX  

Science Conference Proceedings (OSTI)

An algorithm using NOAA-12 AVHRR (Advanced Very High Resolution Radiometer) solar reflectance measurements for retrieving cloud droplet size and optical thickness has been applied to a boundary layer stratocumulus cloud in the vicinity of the ...

S. Platnick; Francisco P. J. Valero

1995-08-01T23:59:59.000Z

87

Sea Ice-Edge Enhancement Using Polar-Orbiting Environmental Satellite Data  

Science Conference Proceedings (OSTI)

The authors develop and discuss satellite image enhancements of sea ice boundaries to the north and west of Alaska. Using data from the NOAA Advanced Very High Resolution Radiometer (AVHRR), the authors illustrate how a pixel-by-pixel difference ...

Thomas F. Lee; Susan Atwater; Charles Samuels

1993-09-01T23:59:59.000Z

88

The Empirical Angular Function Approach: Testing Sea Surface Temperature Satellite Retrievals  

Science Conference Proceedings (OSTI)

Recently, a statistical procedure was proposed to analyze the angular effect in the NOAA Advanced Very High Resolution Radiometer (AVHRR) brightness temperatures. The estimated empirical angular functions (EAF) over the oceans allow one to check ...

Aleksandr M. Ignatov; G. Garik Gutman

1995-09-01T23:59:59.000Z

89

Automatic Detection of Cloud Cover over the Baltic Sea  

Science Conference Proceedings (OSTI)

A simple detection method was proposed to increase the efficiency of automatic classification of a satellite image cell (clear/cloudy). A method is described on the basis of the Advanced Very High Resolution Radiometer (AVHRR) data, with a focus ...

Adam Kr??el; Marcin Paszkuta

2011-09-01T23:59:59.000Z

90

Retrieval of Optical Depth for Heavy Smoke Aerosol Plumes: Uncertainties and Sensitivities to the Optical Properties  

Science Conference Proceedings (OSTI)

This paper is concerned with uncertainties in the Advanced Very High Resolution Radiometer (AVHRR)-based retrieval of optical depth for heavy smoke aerosol plumes generated from forest fires that occurred in Canada due to a lack of knowledge on ...

Jeff Wong; Zhanqing Li

2002-02-01T23:59:59.000Z

91

Development of the HIRS Outgoing Longwave Radiation Climate Dataset  

Science Conference Proceedings (OSTI)

The Advanced Very High Resolution Radiometer (AVHRR) outgoing longwave radiation (OLR) product, which NOAA has been operationally generating since 1979, is a very long data record that has been used in many applications, yet past studies have ...

Hai-Tien Lee; Arnold Gruber; Robert G. Ellingson; Istvan Laszlo

2007-12-01T23:59:59.000Z

92

The SST Quality Monitor (SQUAM)  

Science Conference Proceedings (OSTI)

The National Environmental Satellite, Data, and Information Service (NESDIS) has been operationally generating sea surface temperature (SST) products (TS) from the Advanced Very High Resolution Radiometers (AVHRR) onboard NOAA and MetOp-A ...

Prasanjit Dash; Alexander Ignatov; Yury Kihai; John Sapper

2010-11-01T23:59:59.000Z

93

Use of WindSat to Extend a Microwave-Based Daily Optimum Interpolation Sea Surface Temperature Time Series  

Science Conference Proceedings (OSTI)

The NOAA ¼° daily optimum interpolation sea surface temperature analysis (DOISST) is available either as a 31-yr (from 1981 onward) time series based on Advanced Very High Resolution Radiometer (AVHRR) observations or as a 9-yr (2002–11) time ...

Viva F. Banzon; Richard W. Reynolds

2013-04-01T23:59:59.000Z

94

The influence of temperature and precipitation climate regimes on vegetation dynamics in the US Great Plains: a satellite bioclimatology case study  

Science Conference Proceedings (OSTI)

Advanced Very High Resolution Radiometer (AVHRR)-derived Normalized Difference Vegetation Index (NDVI) data are widely used in global-change research, yet relationships between the NDVI and ecoclimatological variables are not fully understood. This study ...

S. -Y. Tan

2007-11-01T23:59:59.000Z

95

A Bayesian Cloud Mask for Sea Surface Temperature Retrieval  

Science Conference Proceedings (OSTI)

Bayesian methods are used to develop a cloud mask classification algorithm for use in an operational sea surface temperature (SST) retrieval processing system for Advanced Very High Resolution Radiometer (AVHRR) local area coverage (LAC) ...

Michael J. Uddstrom; Warren R. Gray; Richard Murphy; Niles A. Oien; Talbot Murray

1999-01-01T23:59:59.000Z

96

Producing Mega-pixel CMB Maps from Differential Radiometer Data  

E-Print Network (OSTI)

A major goal of cosmology is to obtain sensitive, high resolution maps of the Cosmic Microwave Background (CMB) anisotropy. Such maps, as would be produced by the recently proposed Microwave Anisotropy Probe (MAP), will contain a wealth of primary information about conditions in the early universe. To mitigate systematic effects when observing the microwave background, it is desirable for the raw data to be collected in differential form: as a set of temperature differences between points in the sky. However, the production of large (mega-pixel) maps from a set of temperature differences is a potentially severe computational challenge. We present a new technique for producing maps from differential radiometer data that has a computational cost that grows in the slowest possible way with increasing angular resolution and number of map pixels. The required central processor (CPU) time is proportional to the number of differential data points and the required random access memory (RAM) is proportional to the number of map pixels. We test our technique, and demonstrate its feasibility, by simulating one year of a space-borne anisotropy mission.

Edward L. Wright; Gary Hinshaw; Charles L. Bennett

1995-10-20T23:59:59.000Z

97

Calibration of the Solar Channels of the NOAA-9 AVHRR Using High Altitude Aircraft Measurements  

Science Conference Proceedings (OSTI)

A method for calibrating satellite radiometers is investigated. A calibrated spectral radiometer carried aboard a U2 aircraft at an altitude of 60 000 ft was aligned with White Sands. New Mexico along the same view vector as the Advanced Very ...

Gilbert R. Smith; Robert H. Levin; Peter Abel; Herbert Jacobowitz

1988-10-01T23:59:59.000Z

98

ARM: Broadband Radiometer Station (BRS) broadband shortwave and longwave 1-min radiation data with Dutton correction  

DOE Data Explorer (OSTI)

Broadband Radiometer Station (BRS) broadband shortwave and longwave 1-min radiation data with Dutton correction

Tom Stoffel; Bev Kay; Aron Habte; Mary Anderberg; Mark Kutchenreiter

99

ARM: Microwave Radiometer data (MWR Profiles - QME), water vapor, temp, cloud liquid water, precip water retrievals  

DOE Data Explorer (OSTI)

Microwave Radiometer data (MWR Profiles - QME), water vapor, temp, cloud liquid water, precip water retrievals

Maria Cadeddu

100

Biomass burning emission inventory with daily resolution: Application to aircraft observations of Asian outflow  

E-Print Network (OSTI)

Biomass burning emission inventory with daily resolution: Application to aircraft observations for biomass burning using AVHRR satellite observations of fire activity corrected for data gaps and scan angle biomass burning in SE Asia was a major contributor to the outflow of Asian pollution observed in TRACE

Palmer, Paul

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


101

Albedo of the U.S. Great Plains as Determined from NOAA-9 AVHRR Data  

Science Conference Proceedings (OSTI)

The seasonal variation of surface albedo is derived from NOAA-9 AVHRR observations of the US. Great Plains during the snow-free months of 1986 and 1987. Monthly albedo maps are constructed using a simple model-independent technique which includes ...

G. Gutman; G. Ohring; D. Tarpley; R. Ambroziak

1989-06-01T23:59:59.000Z

102

Degradation Rates of the AVHRR Visible Channel for the NOAA 6, 7, and 9 Spacecraft  

Science Conference Proceedings (OSTI)

AVHRR channel 1 (0.57–0.69 µm) degradations were determined by comparing desert models with 68 months of observations of the Libyan Desert (20° to 30°N, 201 to 30°E). The comparisons revealed that the degradation rates were 0, 3.5% and 6.0% per ...

W. Frank Staylor

1990-06-01T23:59:59.000Z

103

Accurate Airborne Surface Temperature Measurements with Chopper-stabilized Radiometers  

Science Conference Proceedings (OSTI)

The accuracy of chopper-stabilized radiometers for the meteorological measurement of surface temperatures was investigated during a series of airborne trails, including tests at high altitude using a pressurized aircraft. The significant finding ...

Dieter Lorenz

1991-06-01T23:59:59.000Z

104

Field Performance of a Spinning-Reflector Microwave Radiometer  

Science Conference Proceedings (OSTI)

In the winter of 1986, two microwave radiometers were operated side by side at a high-altitude weather observation site in the central Sierra Nevada for the purpose of comparing measurements in a variety of ambient weather conditions. The ...

Belay B. Demoz; Arlen W. Huggins; Joseph A. Warburton; Richard L. Smith

1993-06-01T23:59:59.000Z

105

Comparison of Scatterometer and Radiometer Wind Vector Measurements  

Science Conference Proceedings (OSTI)

Coincident measurements with a 37-GHz polarimetric radiometer and a 10-GHz scatterometer during the Coastal Ocean Probing Experiment (COPE) in September and October of 1995 offered a unique opportunity to compare their relative sensitivity and ...

David E. Weissman; William J. Plant; William C. Keller; Vladimir G. Irisov

2002-01-01T23:59:59.000Z

106

Temperature Profiling with Neural Network Inversion of Microwave Radiometer Data  

Science Conference Proceedings (OSTI)

A neural network is used to obtain vertical profiles of temperature from microwave radiometer data. The overall rms error in the retrieved profiles of a test dataset was only about 8% worse than the overall error using an optimized statistical ...

James H. Churnside; Thomas A. Stermitz; Judith A. Schroeder

1994-02-01T23:59:59.000Z

107

Comparison of Plotting Methods for Solar Radiometer Calibration  

Science Conference Proceedings (OSTI)

An alternative formulation of the Langley plot relating observed solar irradiance, extraterrestrial solar irradiance, and air mass has been suggested to potentially improve radiometer calibration accuracy. In this study, results from the ...

S. M. Adler-Golden; J. R. Slusser

2007-05-01T23:59:59.000Z

108

A Comparison of Columnar Water Vapor Retrievals Obtained with Near-IR Solar Radiometer and Microwave Radiometer Measurements  

Science Conference Proceedings (OSTI)

A simple two-channel solar radiometer and analysis technique have been developed for setting atmospheric water vapor via differential solar transmission measurements in and adjacent to the 940-nm water vapor absorption band. A prototype solar ...

J. Reagan; K. Thome; B. Herman; R. Stone; J. DeLuisi; J. Snider

1995-06-01T23:59:59.000Z

109

Multifilter Rotating Shadowband Radiometer (MFRSR) Handbook  

SciTech Connect

The visible Multifilter Rotating Shadowband Radiometer (MFRSR) is a passive instrument that measures global and diffuse components of solar irradiance at six narrowband channels and one open, or broadband, channel (Harrison et al. 1994). Direct irradiance is not a primary measurement, but is calculated using the diffuse and global measurements. To collect one data record, the MFRSR takes measurements at four different shadowband positions. The first measurement is taken with the shadowband in the nadir (home) position. The next three measurements are, in order, the first side-band, sun-blocked, and second side-band. The side-band measurements are used to correct for the portion of the sky obscured by the shadowband. The nominal wavelengths of the narrowband channels are 415, 500, 615, 673, 870, and 940 nm. From such measurements, one may infer the atmosphere's aerosol optical depth at each wavelength. In turn, these optical depths may be used to derive information about the column abundances of ozone and water vapor (Michalsky et al. 1995), as well as aerosol (Harrison and Michalsky 1994) and other atmospheric constituents.

Hodges, GB; Michalsky, JJ

2011-02-07T23:59:59.000Z

110

Information Content of AVHRR Channels 4 and 5 with Respect to the Effective Radius of Cirrus Cloud Particles  

Science Conference Proceedings (OSTI)

This paper investigates the important difference in the relationship between brightness temperatures between the 11-?m and the 12-?n AVHRR data and the microphysical properties of the semitransparent cirrus clouds. In the nonscattering ...

F. Parol; J. C. Buriez; G. Brogniez; Y. Fouquart

1991-07-01T23:59:59.000Z

111

Calibration Results for NOAA-11 AVHRR Channels 1 and 2 from Congruent Path Aircraft Observations  

Science Conference Proceedings (OSTI)

A method for using congruent atmospheric path aircraft-satellite observations to calibrate a satellite radiometer is presented. A calibrated spectroradiometer aboard a NASA ER-2 aircraft at an altitude of 19 km above White Sands, New Mexico, was ...

Peter Abel; B. Guenther; Reginald N. Galimore; John W. Cooper

1993-08-01T23:59:59.000Z

112

An Infrared Sea Surface Temperature Autonomous Radiometer (ISAR) for Deployment aboard Volunteer Observing Ships (VOS)  

Science Conference Proceedings (OSTI)

The infrared SST autonomous radiometer (ISAR) is a self-calibrating instrument capable of measuring in situ sea surface skin temperature (SSTskin) to an accuracy of 0.1 K. Extensive field deployments alongside two independent research radiometers ...

C. Donlon; I. S. Robinson; W. Wimmer; G. Fisher; M. Reynolds; R. Edwards; T. J. Nightingale

2008-01-01T23:59:59.000Z

113

Improved Retrieval of Integrated Water Vapor from Water Vapor Radiometer Measurements Using Numerical Weather Prediction Models  

Science Conference Proceedings (OSTI)

Water vapor radiometer (WVR) retrieval algorithms require a priori information on atmospheric conditions along the line of sight of the radiometer in order to derive opacities from observed brightness temperatures. This paper's focus is the mean ...

Steven R. Chiswell; Steven Businger; Michael Bevis; Fredrick Solheim; Christian Rocken; Randolph Ware

1994-10-01T23:59:59.000Z

114

Quantitative Measurements of Path-Integrated Rain Rate by an Airborne Microwave Radiometer over the Ocean  

Science Conference Proceedings (OSTI)

Data on the airborne microwave radiometer, which is one of the sensors of the airborne microwave rain-scatterometer/radiometer (AMRS) system, are analyzed to infer path-integrated rain rate measured from topside. The equation of radiative ...

Masaharu Fujita; Ken'ichi Okamoto; Harunobu Masuko; Takeyuki Ojima; Nobuyoshi Fugono

1985-09-01T23:59:59.000Z

115

The Miami2001 Infrared Radiometer Calibration and Intercomparison. Part II: Shipboard Results  

Science Conference Proceedings (OSTI)

The second calibration and intercomparison of infrared radiometers (Miami2001) was held at the University of Miami's Rosenstiel School of Marine and Atmospheric Science (RSMAS) during a workshop held from May to June 2001. The radiometers ...

I. J. Barton; P. J. Minnett; K. A. Maillet; C. J. Donlon; S. J. Hook; A. T. Jessup; T. J. Nightingale

2004-02-01T23:59:59.000Z

116

A High Speed Spectrally Scanning Radiometer (SPERAD) for Airborne Measurements of Cloud Optical Properties  

Science Conference Proceedings (OSTI)

The overall design of a radiometer and data acquisition system for use on an aircraft platform is described. The instrument is a fast response spectrally scanning radiometer providing measurements at 48 spectral intervals between 400 and 1200 nm. ...

Graeme L. Stephens; John C. Scott

1985-06-01T23:59:59.000Z

117

Design and Performance Analysis of an Automated 10-Channel Solar Radiometer Instrument  

Science Conference Proceedings (OSTI)

An automated multichannel solar radiometer has been designed and fabricated by the Atmospheric Remote Sensing Laboratory at The University of Arizona. The automated radiometer has 10 separate silicon-photodiode-based channels that allow near-...

A. R. Ehsani; J. A. Reagan; W. H. Erxleben

1998-06-01T23:59:59.000Z

118

An Approach for Improving Cirrus Cloud-Top Pressure/Height Estimation by Merging High-Spatial-Resolution Infrared-Window Imager Data with High-Spectral-Resolution Sounder Data  

Science Conference Proceedings (OSTI)

The next-generation Visible and Infrared Imaging Radiometer Suite (VIIRS) offers infrared (IR)-window measurements with a horizontal spatial resolution of at least 1 km, but it lacks IR spectral bands that are sensitive to absorption by carbon ...

Elisabeth Weisz; W. Paul Menzel; Nadia Smith; Richard Frey; Eva E. Borbas; Bryan A. Baum

2012-08-01T23:59:59.000Z

119

NREL: MIDC/ARM Radiometer Characterization System (36.606 N,...  

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

The Measurement and Instrumentation Data Center collects Irradiance and Meterological data from the ARM Radiometer Characterization System....

120

Microwave Radiometer – 3 Channel (MWR3C) Handbook  

SciTech Connect

The microwave radiometer 3-channel (MWR3C) provides time-series measurements of brightness temperatures from three channels centered at 23.834, 30, and 89 GHz. These three channels are sensitive to the presence of liquid water and precipitable water vapor.

Cadeddu, MP

2012-05-04T23:59:59.000Z

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


121

Scanning multichannel microwave radiometer snow water equivalent assimilation  

E-Print Network (OSTI)

climatic driver through the surface albedo's role in energy and water budgets [e.g., Yeh et al., 1983Scanning multichannel microwave radiometer snow water equivalent assimilation Jiarui Dong,1 due to complicating effects, including distance to open water, presence of wet snow, and presence

Houser, Paul R.

122

Microwave Radiometer Calibration on Decadal Time Scales Using On-Earth Brightness Temperature References: Application to the TOPEX Microwave Radiometer  

Science Conference Proceedings (OSTI)

A method is described to calibrate a satellite microwave radiometer operating near 18–37 GHz on decadal time scales for the purposes of climate studies. The method uses stable on-earth brightness temperature references over the full dynamic range ...

Shannon Brown; Shailen Desai; Stephen Keihm; Wenwen Lu

2009-12-01T23:59:59.000Z

123

Behavior of an Inversion-Based precipitation Retrieval Algorithm with High-Resolution AMPR Measurements Including a Low-Frequency 10.7-GHz Channel  

Science Conference Proceedings (OSTI)

A microwave-based, profile-type precipitation retrieval algorithm has been used to analyze high-resolution passive microwave measurements over an ocean background, obtained by the Advanced Microwave Precipitation Radiometer(AMPR) flown on ANASA ...

E. A. Smith; X. Xiang; A. Mugnai; R. E. Hood; R. W. Spencer

1994-08-01T23:59:59.000Z

124

Retrieval of Tropospheric Carbon Monoxide Profiles from High-Resolution Interferometer Observations: A New Digital Gas Correlation (DGC)Method and Applications  

Science Conference Proceedings (OSTI)

Global tropospheric carbon monoxide (CO) distributions can be retrieved from observations by spaceborne gas correlation radiometers and high-resolution interferometers. The Measurement of Pollution in the Troposphere (MOPITT) is a gas correlation ...

Jinxue Wang; John C. Gille; Paul L. Bailey; Liwen Pan; David Edwards; James R. Drummond

1999-01-01T23:59:59.000Z

125

Differential Microwave Radiometer and the Cosmic Microwave Background |  

Office of Science (SC) Website

Differential Differential Microwave Radiometer and the Cosmic Microwave Background Laboratory Policy and Evaluation (LPE) LPE Home Staff M&O Contracts SC Laboratory Appraisal Process Laboratory Planning Process Work for Others in the Office of Science Laboratory Directed Research and Development (LDRD) DOE's Philosophy on LDRD Frequently Asked Questions Success Stories Brochures Additional Information LDRD Program Contacts Technology Transfer DOE National Laboratories Contact Information Laboratory Policy and Evaluation U.S. Department of Energy SC-32/Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5447 F: (202) 586-3119 Success Stories Differential Microwave Radiometer and the Cosmic Microwave Background Print Text Size: A A A RSS Feeds FeedbackShare Page

126

Method and apparatus for precision control of radiometer  

SciTech Connect

A radiometer controller of a solar radiation detector is described. The system includes a calibration method and apparatus comprised of mounting all temperature sensitive elements of the controller in thermostatically controlled ovens during calibration and measurements, using a selected temperature that is above any which might be reached in the field. The instrument is calibrated in situ by adjusting heater power to the receptor cavity in the radiometer detector to a predetermined full scale level as displayed by a meter. Then with the heater de-energized and the receptor cavity covered, the voltage output, is set to zero as displayed by the meter. Next the preset power is applied to the heater and the output of the radiant measurement channel is applied to the panel meter. With this preset heater power producing the proper heat, the gain of the measurement channel is adjusted to bring the meter display to full scale.

Estey, R.S.

1981-04-01T23:59:59.000Z

127

Quantitative Analysis of Spectral Impacts on Silicon Photodiode Radiometers: Preprint  

DOE Green Energy (OSTI)

Inexpensive broadband pyranometers with silicon photodiode detectors have a non-uniform spectral response over the spectral range of 300-1100 nm. The response region includes only about 70% to 75% of the total energy in the terrestrial solar spectral distribution from 300 nm to 4000 nm. The solar spectrum constantly changes with solar position and atmospheric conditions. Relative spectral distributions of diffuse hemispherical irradiance sky radiation and total global hemispherical irradiance are drastically different. This analysis convolves a typical photodiode response with SMARTS 2.9.5 spectral model spectra for different sites and atmospheric conditions. Differences in solar component spectra lead to differences on the order of 2% in global hemispherical and 5% or more in diffuse hemispherical irradiances from silicon radiometers. The result is that errors of more than 7% can occur in the computation of direct normal irradiance from global hemispherical irradiance and diffuse hemispherical irradiance using these radiometers.

Myers, D. R.

2011-04-01T23:59:59.000Z

128

ARM Multi-Filter Rotating Shadowband Radiometer (MFRSR): irradiances  

DOE Data Explorer (OSTI)

The multifilter rotating shadowband radiometer (MFRSR) takes spectral measurements of direct normal, diffuse horizontal and total horizontal solar irradiances. These measurements are at nominal wavelengths of 415, 500, 615, 673, 870, and 940 nm. The measurements are made at a user-specified time interval, usually about one minute or less. The sampling rate for the Atmospheric Radiation Measurement (ARM) Climate Research Facility MFRSRs is 20 seconds. From such measurements, one may infer the atmosphere's optical depth at the wavelengths mentioned above. In turn, these optical depths may be used to derive information about the column abundances of ozone and water vapor (Michalsky et al. 1995), as well as aerosol (Michalsky et al. 1994) and other atmospheric constituents. A silicon detector is also part of the MFRSR. This detector provides a measure of the broadband direct normal, diffuse horizontal and total horizontal solar irradiances. A MFRSR head that is mounted to look vertically downward can measure upwelling spectral irradiances. In the ARM system, this instrument is called a multifilter radiometer (MFR). At the Southern Great Plains (SGP) there are two MFRs; one mounted at the 10-m height and the other at 25 m. At the North Slope of Alaska (NSA) sites, the MFRs are mounted at 10 m. MFRSR heads are also used to measure normal incidence radiation by mounting on a solar tracking device. These are referred to as normal incidence multi-filter radiometers (NIMFRs) and are located at the SGP and NSA sites. Another specialized use for the MFRSR is the narrow field of view (NFOV) instrument located at SGP. The NFOV is a ground-based radiometer (MFRSR head) that looks straight up.

Hodges, Gary

129

NREL: MIDC/SMUD Anatolia Rotating Shadowband Radiometer (38.55...  

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

The Measurement and Instrumentation Data Center collects Irradiance and Meterological data from the SMUD Anatolia Irradiance Inc. Rotating Shadowband Radiometer v2....

130

A New Look at Calibration and Use of Eppley Precision Infrared Radiometers. Part II: Calibration and Use of the Woods Hole Oceanographic Institution Improved Meteorology Precision Infrared Radiometer*  

Science Conference Proceedings (OSTI)

For some years, investigators have made measurements of downwelling longwave irradiance with the Eppley Precision Infrared Radiometer (PIR), recording the values of thermopile voltage and body and dome thermistor resistances and combining them in ...

Richard E. Payne; Steven P. Anderson

1999-06-01T23:59:59.000Z

131

A High-Accuracy Multiwavelength Radiometer for In Situ Measurements in the Thermal Infrared. Part I: Characterization of the Instrument  

Science Conference Proceedings (OSTI)

The new infrared radiometer (conveyable low-noise infrared radiometer for measurements of atmosphere and ground surface targets, or CLIMAT) is a highly sensitive field instrument designed to measure brightness temperatures or radiances in the ...

Michel Legrand; Christophe Pietras; Gérard Brogniez; Martial Haeffelin; Nader Khalil Abuhassan; Michaël Sicard

2000-09-01T23:59:59.000Z

132

Calibration of Geostationary-Satellite Infrared Radiometers Using the TIROS-N Vertical Sounder: Application to METEOSAT-1  

Science Conference Proceedings (OSTI)

A method is presented for the calibration of infrared radiometers on geostationary satellites using calibrated infrared radiometers on an orbiting satellite. This method relies on similarities between the weighting functions corresponding to the ...

N. Beriot; N. A. Scott; A. Chedin; P. Sitbon

1982-01-01T23:59:59.000Z

133

The Advanced Very High Resolution Radiometer Pathfinder Atmosphere (PATMOS) Climate Dataset: A Resource for Climate Research  

Science Conference Proceedings (OSTI)

As part of the joint National Oceanic and Atmospheric Administration (NOAA) and National Aeronautics and Space Administration (NASA) Pathfinder program, the NOAA National Environmental Satellite, Data, and Information Service (NESDIS) has created ...

Herbert Jacobowitz; Larry L. Stowe; George Ohring; Andrew Heidinger; Kenneth Knapp; Nicholas R. Nalli

2003-06-01T23:59:59.000Z

134

Hydrologic data assimilation of multi-resolution microwave radiometer and radar measurements using ensemble smoothing  

E-Print Network (OSTI)

Previously, the ensemble Kalman filter (EnKF) has been used to estimate soil moisture and related fluxes by merging noisy low frequency microwave observations with forecasts from a conventional though uncertain land surface ...

Dunne, Susan Catherine

2006-01-01T23:59:59.000Z

135

Working Group Reports A Short-Wave Radiometer Array Across  

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

9 9 Working Group Reports A Short-Wave Radiometer Array Across the Tropical Pacific Ocean as a Component of the TOGA-TAO Buoy Array R. M. Reynolds Brookhaven National Laboratory Upton, New York Introduction The purpose of this document is to bring together pertinent information concerning the NOAA TOGA-TAO buoy array so that a decision can be made for the following questions: 1. Are the scientific gains from an array of short-wave radiation sensors in the equatorial Pacific Ocean sufficiently impelling that DOE/ARM should provide financial and material support to NOAA/PMEL to install and operate this array? 2. What scientists and/or scientific studies would directly benefit from such a data set? 3. What should that array look like? That is, what sub-set of buoys should be so implemented given the per-buoy

136

Limits to the Aerosol Indirect Radiative Effect Derived from Observations of Ship Tracks  

Science Conference Proceedings (OSTI)

One-kilometer Advanced Very High Resolution Radiometer (AVHRR) observations of the effects of ships on low-level clouds off the west coast of the United States are used to derive limits for the degree to which clouds might be altered by increases ...

James A. Coakley Jr.; Christopher D. Walsh

2002-02-01T23:59:59.000Z

137

Aerosols and Ice Particle Size in Tropical Cumulonimbus  

Science Conference Proceedings (OSTI)

A retrieval of ice crystal size near the tops of active deep cumulonimbus clouds (Cb) throughout the Tropics over a 12-yr period is presented based on radiances from the 3.7-?m channel of the Advanced Very High Resolution Radiometer (AVHRR). ...

Steven C. Sherwood

2002-05-01T23:59:59.000Z

138

Measurement of Boundary-Layer Temperature Profiles by a Scanning 5-MM Radiometer During the 1999 Winter NSA/AAO Radiometer Exp  

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

Boundary-Layer Temperature Profiles by Boundary-Layer Temperature Profiles by a Scanning 5-MM Radiometer During the 1999 Winter NSA/AAO Radiometer Experiment and WVIOP 2000 V. Y. Leuski and E. R. Westwater Cooperative Institute for Research in the Environmental Sciences National Oceanic and Atmospheric Administration Environmental Technology Laboratory University of Colorado Boulder, Colorado Introduction A scanning 5-mm-wavelength radiometer was deployed during two Intensive Operational Periods (IOPs) at the Atmospheric Radiation Measurement (ARM) Program's Cloud and Radiation Testbed (CART) facilities. The first was conducted at the North Slope of Alaska (NSA) and Adjacent arctic Ocean (AAO) site near Barrow, Alaska, during March 1999. One goal was to evaluate the ability of an

139

Resolution Enhancement of Multichannel Microwave Imagery from the Nimbus-7 SMMR for Maritime Rainfall Analysis  

Science Conference Proceedings (OSTI)

A restoration of the 37, 21, 18, 10.7 and 6.6 GHz satellite imagery from the Scanning Multichannel Microwave Radiometer (SMMR) aboard Nimbus-7 to 22.2 km resolution is attempted using a deconvolution method based upon nonlinear programming. The ...

William S. Olson; Chia-Lung Yeh; James A. Weinman; Roland T. Chin

1986-09-01T23:59:59.000Z

140

The Radiometric Calibration Budget for the High-Resolution Dynamics Limb Sounder  

Science Conference Proceedings (OSTI)

The High-Resolution Dynamics Limb Sounder is a 21-channel infrared filter radiometer due to be launched on the Earth Observing System Chemistry platform in 2002. The channels range in wavelength from 6.1 to 17.8 ?m, with fractional widths of ...

C. W. P. Palmer; J. G. Whitney

1996-04-01T23:59:59.000Z

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


141

Ocean Aerosols: The Marine Fast-Rotating Shadow-Band Radiometer Network  

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

Ocean Aerosols: The Marine Fast-Rotating Ocean Aerosols: The Marine Fast-Rotating Shadow-Band Radiometer Network M. A. Miller, R. M. Reynolds, and J. J. Bartholomew Brookhaven National Laboratory Upton, New York Introduction A network of ship-mounted marine fast-rotating shadow-band radiometers (FRSRs) and broadband radiometers have been deployed over the fast four years on several backbone ships, funded jointly by Atmospheric Radiation Measurement (ARM) and National Aeronautic and Space Administration's (NASA's) Sensor Intercomparison and Merger for Biological and Interdisciplinary Studies (SIMBIOS). These radiometers operate continuously and automatically during daylight hours. There fundamental measurements made by the FRSRs in the network are the direct-normal irradiance

142

Advanced Rain/No-Rain Classification Methods for Microwave Radiometer Observations over Land  

Science Conference Proceedings (OSTI)

Seto et al. developed rain/no-rain classification (RNC) methods over land for the Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI). In this study, the methods are modified for application to other microwave radiometers. The ...

Shinta Seto; Takuji Kubota; Nobuhiro Takahashi; Toshio Iguchi; Taikan Oki

2008-11-01T23:59:59.000Z

143

MEASUREMENTS AND RETRIEVALS FROM A NEW 183-GHz WATER VAPOR RADIOMETER IN  

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

MEASUREMENTS AND RETRIEVALS FROM A NEW 183-GHz WATER VAPOR RADIOMETER IN MEASUREMENTS AND RETRIEVALS FROM A NEW 183-GHz WATER VAPOR RADIOMETER IN THE ARCTIC Cadeddu, Maria Argonne National Laboratory Category: Instruments A new G-band (183 GHz) vapor radiometer (GVR), developed and built by Prosensing Inc. (http://www.prosensing.com), was deployed in Barrow, Alaska, in April 2005. The radiometer was deployed as part of the ongoing Atmospheric Radiation Measurement (ARM) program's effort to improve water vapor retrievals in the cold, dry Arctic environment. The instrument measures brightness temperatures from four double sideband channels centered at 1, 3, 7, and 14 GHz from the 183.31-GHz water vapor line. Atmospheric emission in this spectral region is primarily due to water vapor, with some influence from liquid water. The GVR will remain in Barrow

144

Attitude Determination from a Balloon-Borne Radiometer Using Two-Sided Limb Scanning  

Science Conference Proceedings (OSTI)

The determination of the horizontal attitude of a balloon-borne, infrared, limb-scanning radiometer is discussed. In particular, the relationship between scan-angle, as measured by the instrument, and the tangent height of the ray path through ...

J. R. Drummond; D. Turner; A. Ashton

1986-03-01T23:59:59.000Z

145

An Evaluation of a Self-Calibrating Infrared Radiometer for Measuring Sea Surface Temperature  

Science Conference Proceedings (OSTI)

Satellite radiometer measurements of global sea surface temperature (SST) with an accuracy of 0.3 K are required for climate change monitoring. In order to validate that this accuracy can be achieved, in situ measurements of sea surface radiance ...

J. P. Thomas; R. J. Knight; H. K. Roscoe; J. Turner; C. Symon

1995-04-01T23:59:59.000Z

146

Errors in Net Radiometry: Comparison and Evaluation of Six Radiometer Designs  

Science Conference Proceedings (OSTI)

Net radiation is a fundamental variable in meteorology, but net radiometers have not been used extensively since the 1960s because of what is commonly considered as unreliable function. This study was conducted to determine whether this problem ...

Sven Halldin; Anders Lindroth

1992-12-01T23:59:59.000Z

147

The Miami2001 Infrared Radiometer Calibration and Intercomparison. Part I: Laboratory Characterization of Blackbody Targets  

Science Conference Proceedings (OSTI)

The second calibration and intercomparison of infrared radiometers (Miami2001) was held at the University of Miami's Rosenstiel School of Marine and Atmospheric Science (RSMAS) during May–June 2001. The participants were from several groups ...

J. P. Rice; J. J. Butler; B. C. Johnson; P. J. Minnett; K. A. Maillet; T. J. Nightingale; S. J. Hook; A. Abtahi; C. J. Donlon; I. J. Barton

2004-02-01T23:59:59.000Z

148

Retrieval of Cirrus Cloud Radiative and Backscattering Properties Using Combined Lidar and Infrared Radiometer (LIRAD) Measurements  

Science Conference Proceedings (OSTI)

A method for retrieval of cirrus macrophysical and radiative properties using combined ruby lidar and infrared radiometer measurements is explained in detail. The retrieval algorithm includes estimation of a variable backscatter-to-extinction ...

Jennifer M. Comstock; Kenneth Sassen

2001-10-01T23:59:59.000Z

149

Hurricane Surface Wind Measurements from an Operational Stepped Frequency Microwave Radiometer  

Science Conference Proceedings (OSTI)

For the first time, the NOAA/Aircraft Operations Center (AOC) flew stepped frequency microwave radiometers (SFMRs) on both WP-3D research aircraft for operational hurricane surface wind speed measurement in 2005. An unprecedented number of major ...

Eric W. Uhlhorn; Peter G. Black; James L. Franklin; Mark Goodberlet; James Carswell; Alan S. Goldstein

2007-09-01T23:59:59.000Z

150

Wind Speed Effects on Sea Surface Emission and Reflection for the Along Track Scanning Radiometer  

Science Conference Proceedings (OSTI)

The emission and reflection properties of a rough sea surface are investigated, with particular emphasis on the wavelengths and viewing geometry relevant to the Along Track Scanning Radiometer. The authors start from Fresnel's equations for a ...

Philip D. Watts; Myles R. Allen; Timothy J. Nightingale

1996-02-01T23:59:59.000Z

151

Design, Operation, and Calibration of a Shipboard Fast-Rotating Shadowband Spectral Radiometer  

Science Conference Proceedings (OSTI)

This paper describes the design, calibration, and deployment of a fast-rotating shadowband radiometer (FRSR) that accurately decomposes downward shortwave (solar) irradiance into direct-beam and diffuse components from a moving platform, such as ...

R. Michael Reynolds; Mark A. Miller; Mary J. Bartholomew

2001-02-01T23:59:59.000Z

152

Optimizing Performance of a Microwave Salinity Mapper: STARRS L-Band Radiometer Enhancements  

Science Conference Proceedings (OSTI)

Airborne microwave radiometers for salinity remote sensing have advanced to a point where operational surveys can be conducted over the inner continental shelf to observe the evolution of freshwater plumes emanating from rivers and estuaries. To ...

Derek M. Burrage; Joel C. Wesson; Mark A. Goodberlet; Jerry L. Miller

2008-05-01T23:59:59.000Z

153

Vicarious Calibration of an Ocean Salinity Radiometer from Low Earth Orbit  

Science Conference Proceedings (OSTI)

Statistical properties of the brightness temperature (TB) measured by a low-earth-orbiting radiometer operating at 1.4 GHz are considered as a means of calibrating and validating the sensor. Mapping of ocean salinity by such an instrument ...

Christopher S. Ruf

2003-11-01T23:59:59.000Z

154

Tropical Cyclone Rainfall Characteristics as Determined from a Satellite Passive Microwave Radiometer  

Science Conference Proceedings (OSTI)

Data from the Nimbus-5 F-Electrically Scanning Microwave Radiometer (ESMR-5) have been used to calculate latent heat release (LHR) and other rainfall parameters for over 70 satelite observations of 21 tropical cyclones during 1973, 1974 and 1975 ...

E. B. Rodgers; R. F. Adler

1981-03-01T23:59:59.000Z

155

Multiwavelength Scanning Radiometer for Airborne Measurements of Scattered Radiation within Clouds  

Science Conference Proceedings (OSTI)

A multi-wavelength scanning radiometer has been developed for measuring the angular distribution of scattered radiation deep within a cloud layer. The purpose of the instrument is to provide measurements from which the single scattering albedo of ...

Michael D. King; Maxwell G. Strange; Peter Leone; Lamdin R. Blaine

1986-09-01T23:59:59.000Z

156

Structure of Florida Thunderstorms Using High-Altitude Aircraft Radiometer and Radar Observations  

Science Conference Proceedings (OSTI)

This paper presents an analysis of a unique radar and radiometer dataset from the National Aeronautics and Space Administration (NASA) ER-2 high-altitude aircraft overlying Florida thunderstorms on 5 October 1993 during the Convection and ...

G. M. Heymsfield; J. M. Shepherd; S. W. Bidwell; W. C. Boncyk; I. J. Caylor; S. Ameen; W. S. Olson

1996-10-01T23:59:59.000Z

157

Using digital cameras as quasi-spectral radiometers to study complex fenestration systems  

E-Print Network (OSTI)

This work discusses the use of digital cameras fitted with absorption filters as quasi-spectral radiometers. By filtering incident light into selected wavelength intervals, accurate estimates of radiances can be made for ...

Gayeski, Nicholas

158

Numerical Filtering of Spurious Transients in a Satellite Scanning Radiometer: Application to CERES  

Science Conference Proceedings (OSTI)

The Clouds and Earth Radiant Energy System (CERES) scanning radiometer was designed to provide high accuracy measurements of the radiances from the earth. Calibration testing of the instruments showed the presence of an undesired slow transient ...

G. Louis Smith; D. K. Pandey; Robert B. Lee III; Bruce R. Barkstrom; Kory J. Priestley

2002-02-01T23:59:59.000Z

159

Spatial Variability of Summer Florida Precipitation and Its Impact on Microwave Radiometer Rainfall-Measurement Systems  

Science Conference Proceedings (OSTI)

Three-dimensional radar data for three summer Florida storm are used as input to a microwave radiative transfer model. The model simulates microwave brightness observations by a 19-GHz, nadir-pointing, satellite-borne microwave radiometer.

B. J. Turner; G. L. Austin

1993-02-01T23:59:59.000Z

160

Bayesian Estimation of Precipitation from Satellite Passive Microwave Observations Using Combined Radar–Radiometer Retrievals  

Science Conference Proceedings (OSTI)

Precipitation estimation from satellite passive microwave radiometer observations is a problem that does not have a unique solution that is insensitive to errors in the input data. Traditionally, to make this problem well posed, a priori ...

Mircea Grecu; William S. Olson

2006-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

Correlations between Nimbus-7 Scanning Multichannel Microwave Radiometer Data and an Antecedent Precipitation Index  

Science Conference Proceedings (OSTI)

Passive microwave brightness temperatures from the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR) can be used to infer the soil moisture content over agricultural areas such as the southern Great Plains of the United States. A linear ...

Gregory D. Wilke; Marshall J. McFarland

1986-02-01T23:59:59.000Z

162

Mobile Microwave Radiometer Observations: Spatial Characteristics of Supercooled Cloud Water and Cloud Seeding Implications  

Science Conference Proceedings (OSTI)

Previous studies of the spatial distribution of supercooled liquid water in winter storms over mountainous terrain were performed primarily with instrumented aircraft and to a lesser extent with scans from a stationary microwave radiometer. The ...

Arlen W. Huggins

1995-02-01T23:59:59.000Z

163

Comparison of Infrared Atmospheric Brightness Temperatures Measured by a Fourier Transform Spectrometer and a Filter Radiometer  

Science Conference Proceedings (OSTI)

Increased interest in using atmospheric brightness temperature measurements from simple infrared radiometers combined with radars and lidars has prompted the investigation of their accuracy for various sky conditions. In comparisons of ...

Joseph A. Shaw; Jack B. Snider; James H. Churnside; Mark D. Jacobson

1995-10-01T23:59:59.000Z

164

Evaluation of Radiometers in Full-Time Use at the National Renewable Energy Laboratory Solar Radiation Research Laboratory  

DOE Green Energy (OSTI)

This report describes the evaluation of the relative performance of the complement of solar radiometers deployed at the National Renewable Energy Laboratory (NREL) Solar Radiation Research Laboratory (SRRL).

Wilcox, S. M.; Myers, D. R.

2008-12-01T23:59:59.000Z

165

Retrieval of Precipitation Profiles from Airborne Radar and Passive Radiometer Measurements: Comparison with Dual-Frequency Radar Measurements  

Science Conference Proceedings (OSTI)

This study compares precipitation rate profiles derived from a single frequency radar and radiometer with such profiles derived from a dual-frequency radar.

J. A. Weinman; R. Meneghini; K. Nakamura

1990-10-01T23:59:59.000Z

166

Determination of total ozone from DMSP multichannel filter radiometer measurements  

Science Conference Proceedings (OSTI)

The multichannel filter radiometer (MFR) infrared sensor was first flown in 1977 on a Defense Meteorological Satellite Program (DMSP) Block 5D series satellite operated by the US Air Force. The first four satellites in this series carried MFR sensors from which total atmospheric column ozone amounts may be derived. The last MFR sensor ceased operating on February 16, 1980. The series of four sensors spans a data period of nearly three years. The MFR sensor measures infrared radiances for 16 channels. Total ozone amounts are determined from sets of radiance measurements using an empirical relationship that is developed using linear regression analysis. Total ozone is modeled as a linear combination of terms involving functions of the MFR radiances for four channels (1, 3, 7 and 16) and the secant of the zenith angle. The ozone retrieval methodology is described schematically. The ozone retrieval model is developed through regression analysis using sets of simulated MFR radiances derived from detailed radiative transfer calculations. The MFR total ozone data are compared with independent ground-based Dobson measurements in order to evaluate the ozone retrieval methodology. Many Dobson observatories have been providing their daily measurements of total ozone which are taken close in time to DMSP overpass times. MFR total ozone data are compared with Dobson measurements taken between January 1 and February 15, 1979, and the results are summarized. Comparisons were made where the MFR and Dobson measurements are within 300 km and 300 minutes of each other. Percentages are computed with respect to the Dobson values. The MFR data were processed using a preliminary methodology, and the data will be reprocessed in the near future.

Luther, F.M.; Weichel, R.L.

1980-09-01T23:59:59.000Z

167

A Summertime Antarctic Mesocyclone Event over the Southern Pacific during FROST SOP-3: A Mesoscale Analysis Using AVHRR, SSM/I, ERS, and Numerical Model Data  

Science Conference Proceedings (OSTI)

The development of three summertime mesoscale cyclones (MCs) over the northern Amundsen and Bellingshausen Seas from 10 to 12 January 1995 (during FROST SOP-3) is studied by means of AVHRR data, ERS and SSM/I retrievals, and mesoscale numerical ...

Michael Lieder; Günther Heinemann

1999-12-01T23:59:59.000Z

168

A 16-channel heterodyne electron cyclotron emission radiometer on J-TEXT  

SciTech Connect

To study equilibrium temporal dynamics and the mechanisms of magnetohydrodynamic instabilities, a 16-channel heterodyne electron cyclotron emission (ECE) radiometer has been developed to view the J-TEXT tokamak from the low field side. The ECE radiometer detects second-harmonic extraordinary mode in the frequency band of 94-125 GHz which corresponds to resonances from 1.8 T to 2.2 T. This ECE system consists of an ECE transmission line, a radio frequency unit, and two 8-channel intermediate frequency units. An in situ blackbody calibration source is applied for system calibration by comparison of hot and cold sources in order to provide an absolute temperature measurement.

Yang, Z. J.; Zhuang, G.; Xiao, J. S.; Wang, Z. J. [State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Key Laboratory of Fusion and Advanced Electromagnetic Technology Ministry of Education, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Phillips, P. E.; Huang, H.; Rowan, W. L. [Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712 (United States)

2012-10-15T23:59:59.000Z

169

Distribution and Validation of Cloud Cover Derived from AVHRR Data Over the Arctic Ocean During the SHEBA Year  

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

and Validation of Cloud Cover and Validation of Cloud Cover Derived from AVHRR Data Over the Arctic Ocean During the SHEBA Year P. Minnis National Aeronautics and Space Administration Langley Research Center Hampton, Virginia D. A. Spangenberg and V. Chakrapani Analytical Services and Materials, Inc. Hampton, Virginia Introduction Determination of cloud radiation interactions over large areas of the Arctic is possible only with the use of data from polar orbiting satellites. Cloud detection using satellite data is difficult in the Arctic due to the minimal contrast between clouds and the underlying snow surface in visible and infrared wavelengths. Polar clouds are frequently warmer or at the same brightness temperature as the background surface, complicating cloud detection. The brightness temperature differences between the

170

Cloud Microphysical and Radiative Properties Derived from MODIS, VIRS, AVHRR, and GMS Data Over the Tropical Western Pacific  

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

Microphysical and Radiative Properties Derived Microphysical and Radiative Properties Derived from MODIS, VIRS, AVHRR, and GMS Data Over the Tropical Western Pacific G. D. Nowicki, M. L. Nordeen, P. W. Heck, D. R. Doelling, and M. M. Khaiyer Analytical Services and Materials, Inc. Hampton, Virginia P. Minnis National Aeronautics and Space Administration Atmospheric Sciences Division Langley Research Center Hampton, Virginia S. Sun-Mack Science Applications International Corporation Hampton, Virginia Introduction Utilization of the geostationary meteorological satellite (GMS) imagery has allowed for the derivation of cloud and radiative properties over the Tropical Western Pacific (TWP) on relatively high spatial and temporal scales. The layered bispectral threshold method (LBTM) has been applied to GMS data

171

Characterization of the Immersion Factor for a Series of In-Water Optical Radiometers  

Science Conference Proceedings (OSTI)

Spectral immersion factors, If(?), account for the difference between the in-air and in-water absolute response of submersible radiometers and are required to properly apply the in-air absolute calibration of the sensor when used underwater. The ...

G. Zibordi; S. B. Hooker; J. Mueller; G. Lazin

2004-03-01T23:59:59.000Z

172

Validation of Atlantic Ocean Sea Surface Temperatures Measured by the ERS-1 Along Track Scanning Radiometer  

Science Conference Proceedings (OSTI)

During the period from October 1991 to May 1992 the royal research ship Bransfield made its annual voyage from the United Kingdom to Antarctica and back. Whenever the measurement swath of the Along Track Scanning Radiometer (ATSR) on the ERS-1 ...

J. P. Thomas; J. Turner

1995-12-01T23:59:59.000Z

173

G-Band Vapor Radiometer Precipitable Water Vapor (GVRPWV) Value-Added Product  

SciTech Connect

The G-Band Vapor Radiometer Precipitable Water Vapor (GVRPWV) value-added product (VAP) computes precipitable water vapor using neural network techniques from data measured by the GVR. The GVR reports time-series measurements of brightness temperatures for four channels located at 183.3 ± 1, 3, 7, and 14 GHz.

Koontz, A; Cadeddu, M

2012-12-05T23:59:59.000Z

174

Correcting Active Scatterometer Data for the Effects of Rain Using Passive Radiometer Data  

Science Conference Proceedings (OSTI)

A model for the effects of rain on scatterometer data is proposed. Data from the Advanced Microwave Scanning Radiometer (AMSR) and the SeaWinds scatterometer, both on the Midori-II satellite, are used. The model includes three basic rain effects: ...

K. A. Hilburn; F. J. Wentz; D. K. Smith; P. D. Ashcroft

2006-03-01T23:59:59.000Z

175

An Airborne Millimeter-Wave Imaging Radiometer for Cloud, Precipitation, and Atmospheric Water Vapor Studies  

Science Conference Proceedings (OSTI)

A six-channel airborne total-power Millimeter-wave Imaging Radiometer (MIR) was recently built to provide measurements of atmospheric water vapor, clouds, and precipitation. The instrument is a cross-track scanner that has a 3-dB beamwidth of 3.5°...

P. Racette; R. F. Adler; J. R. Wang; A. J. Gasiewski; D. M. Jakson; D. S. Zacharias

1996-06-01T23:59:59.000Z

176

GVR (G-Band Vapor Radiometer) M.P. Cadeddu and J.C. Liljegren Argonne Natl. Laboratory  

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

MWR status MWR status M.P. Cadeddu New radiometers New radiometers ECO-00664 (MWR procurement) open Specifications have been written and submitted Draft of specifications sent to vendors last month A few changes were incorporated after vendors feedback. Final specification document will be sent next week. ECO-00664 (MWR procurement) open Specifications have been written and submitted Draft of specifications sent to vendors last month A few changes were incorporated after vendors feedback. Final specification document will be sent next week. PWV-LWP: 12 2-channel MWR Temperature-humidity profile: 2 profilers operating Low LWP-PWV: 2 183-GHz radiometers Low LWP: 2 90/150-GHz radiometers PWV-LWP: 12 2-channel MWR Temperature-humidity profile: 2 profilers

177

Remote Sensing of Atmospheric Aerosols and Trace Gases by Means of Multifilter Rotating Shadowband Radiometer. Part I: Retrieval Algorithm  

Science Conference Proceedings (OSTI)

A retrieval algorithm for processing multifilter rotating shadowband radiometer (MFRSR) data from clear and partially cloudy days is described and validated. This method, while complementary to the Langley approach, uses consistency between the ...

Mikhail D. Alexandrov; Andrew A. Lacis; Barbara E. Carlson; Brian Cairns

2002-02-01T23:59:59.000Z

178

A Second-Generation Blackbody System for the Calibration and Verification of Sea-Going Infrared Radiometers  

Science Conference Proceedings (OSTI)

Quasi-operational shipborne radiometers provide a Fiducial Reference Measurement (FRM) for satellite validation of satellite sea surface skin temperature (SSTskin) retrievals. External reference blackbodies are required to verify the performance ...

Craig J. Donlon; W. Wimmer; I. Robinson; G. Fisher; M. Ferlet; T. Nightingale; B. Bras

179

The Calibration and Intercalibration of Sea-Going Infrared Radiometer Systems Using a Low Cost Blackbody Cavity  

Science Conference Proceedings (OSTI)

There are many infrared radiometer systems available for the measurement of in situ sea surface skin temperature (SSST). Unfortunately, the marine environment is extremely hostile to optical components, and to ensure the accuracy of SSST ...

C. J. Donlon; T. Nightingale; L. Fiedler; G. Fisher; D. Baldwin; I. S. Robinson

1999-09-01T23:59:59.000Z

180

First Three Years of the Microwave Radiometer aboard Envisat: In-Flight Calibration, Processing, and Validation of the Geophysical Products  

Science Conference Proceedings (OSTI)

The Envisat microwave radiometer is designed to correct the satellite altimeter data for the excess path delay resulting from tropospheric humidity. Neural networks have been used to formulate the inversion algorithm to retrieve this quantity ...

E. Obligis; L. Eymard; N. Tran; S. Labroue; P. Femenias

2006-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


181

A High-Accuracy Multiwavelength Radiometer for In Situ Measurements in the Thermal Infrared. Part II: Behavior in Field Experiments  

Science Conference Proceedings (OSTI)

The performances of the new conveyable low-noise infrared radiometer for measurements of atmosphere and ground surface targets, or CLIMAT, are presented for in situ measurements. For this, quantitative analyses were carried out on measurements ...

Gérard Brogniez; Christophe Pietras; Michel Legrand; Philippe Dubuisson; Martial Haeffelin

2003-07-01T23:59:59.000Z

182

A New Look at Calibration and Use of Eppley Precision Infrared Radiometers. Part I: Theory and Application  

Science Conference Proceedings (OSTI)

The calibration and accuracy of the Eppley precision infrared radiometer (PIR) is examined both theoretically and experimentally. A rederivation of the fundamental energy balance of the PIR indicates that the calibration equation in common use in ...

C. W. Fairall; P. O. G. Persson; E. F. Bradley; R. E. Payne; S. P. Anderson

1998-12-01T23:59:59.000Z

183

Comparison of Near–Real Time Estimates of Integrated Water Vapor Derived with GPS, Radiosondes, and Microwave Radiometer  

Science Conference Proceedings (OSTI)

In this study, the authors compare the integrated water vapor (IWV) retrieved with a global positioning system (GPS) receiver, radiosondes (RS), and a microwave radiometer (MWR) using data collected simultaneously during a 3-month campaign in the ...

Joël Van Baelen; Jean-Pierre Aubagnac; Alain Dabas

2005-02-01T23:59:59.000Z

184

Inference of Marine Atmospheric Boundary Layer Moisture and Temperature Structure Using Airborne Lidar and Infrared Radiometer Data  

Science Conference Proceedings (OSTI)

A new technique for retrieving near-surface moisture and profiles of mixing ratio and potential temperature through the depth of the marine atmospheric boundary layer (MABL) using airborne lidar and multichannel infrared radiometer data is ...

Stephen P. Palm; Denise Hagan; Geary Schwemmer; S. H. Melfi

1998-03-01T23:59:59.000Z

185

Retrieval of cloud properties using CALIPSO Imaging Infrared Radiometer. Part II: effective diameter and ice water path  

Science Conference Proceedings (OSTI)

The paper describes the version 3 Level 2 operational analysis of the Imaging Infrared Radiometer (IIR) data collected in the framework of the CALIPSO mission to retrieve cirrus cloud effective diameter and ice water path in synergy with the ...

Anne Garnier; Jacques Pelon; Philippe Dubuisson; Ping Yang; Michaël Faivre; Olivier Chomette; Nicolas Pascal; Pat Lucker; Tim Murray

186

A Steerable Dual-Channel Microwave Radiometer for Measurement of Water Vapor and Liquid in the Troposphere  

Science Conference Proceedings (OSTI)

An instrument that remotely senses the integrated amounts of water vapor and liquid on a path through the atmosphere is discussed. The vapor and liquid are measured simultaneously but independently by microwave radiometers. Comparison of the ...

D. C. Hogg; F. O. Guiraud; J. B. Snider; M. T. Decker; E. R. Westwater

1983-05-01T23:59:59.000Z

187

Remotely Sensed Measurements of Stratocumulus Properties during FIRE Using the C130 Aircraft Multi-channel Radiometer  

Science Conference Proceedings (OSTI)

This paper gives a description of a narrow-hand near-infrared radiometer that was operated during the marine stratocumulus intensive field observation program of FIRE in 1987 from the United Kingdom Meteorological Office C130 aircraft. All data ...

F. Rawlins; J. S. Foot

1990-11-01T23:59:59.000Z

188

Evaluating the Quality of Ground-Based Microwave Radiometer Measurements and Retrievals Using Detrended Fluctuation and Spectral Analysis Methods  

Science Conference Proceedings (OSTI)

Time series both of microwave radiometer brightness temperature measurements at 23.8 and 31.4 GHz and of retrievals of water vapor and liquid water path from these brightness temperatures are evaluated using the detrended fluctuation analysis ...

K. Ivanova; E. E. Clothiaux; H. N. Shirer; T. P. Ackerman; J. C. Liljegren; M. Ausloos

2002-01-01T23:59:59.000Z

189

Comparisons of Line-of-Sight Water Vapor Observations Using the Global Positioning System and a Pointing Microwave Radiometer  

Science Conference Proceedings (OSTI)

Line-of-sight measurements of integrated water vapor from a global positioning system (GPS) receiver and a microwave radiometer are compared. These two instruments were collocated at the central facility of the Department of Energy’s Atmospheric ...

John Braun; Christian Rocken; James Liljegren

2003-05-01T23:59:59.000Z

190

Characterization of Precipitating Clouds by Ground-Based Measurements with the Triple-Frequency Polarized Microwave Radiometer ADMIRARI  

Science Conference Proceedings (OSTI)

A groundbreaking new-concept multiwavelength dual-polarized Advanced Microwave Radiometer for Rain Identification (ADMIRARI) has been built and continuously operated in two field campaigns: the Convective and Orographically Induced Precipitation ...

Alessandro Battaglia; Pablo Saavedra; Thomas Rose; Clemens Simmer

2010-03-01T23:59:59.000Z

191

Microfluidic labeling of biomolecules with radiometals for use in nuclear Tobias D. Wheeler,ab  

E-Print Network (OSTI)

). The analysis was performed using the following gradient of 0.1 vol% TFA in de-ionized water (A) and 0.1 vol of concentrated reagents. As a model reaction, we radiolabel 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic of reservoirs for the incubation of the radiometal­ligand mixture and (3) a thin-film heater for heating

Kenis, Paul J. A.

192

Comparison of Historical Satellite Based Estimates of Solar Radiation Resources with Recent Rotating Shadowland Radiometer Measurements  

Science Conference Proceedings (OSTI)

Satellite-based solar radiation estimates have recently been incorporated into the 1990-2005 update to the 1961-1990 U.S. National Solar Radiation Database (NSRDB). The National Aeronautics and Space Administration (NASA) also supplies satellite-based estimates of solar radiation. The usefulness of such data with respect to solar resources for site selection and designing solar energy conversion systems is often questioned. The availability of rotating shadow band radiometer measurement data at several new stations provides an opportunity to compare historical satellite-based estimates of solar resources with measurements. We compare mean monthly daily total (MMDT) solar radiation data from eight years of NSRDB and 22 years of NASA hourly global horizontal and direct beam solar estimates with measured data from three stations, collected after the end of the available resource estimates. We compare the most recent shadowband radiometer MMDT with a complement of thermopile 'first class' solar radiometers at one site. Quantitative analysis shows that in most cases, the long-term average MMDT and measured data are comparable, within 10% of each other for global, and 20% for direct-radiation MMDT.

Myers, D.

2009-01-01T23:59:59.000Z

193

Determining the Susceptibility of Cloud Albedo to Changes in Droplet Concentration with the Advanced Very High Resolution Radiometer  

Science Conference Proceedings (OSTI)

Combustion Processes that Produce greenhouse gases also increase cloud condensation nuclei (CCN) concentrations, which in turn increase cloud droplet concentrations and thereby cloud albedo. A calculation of cloud susceptibility, defined in this ...

S. Platnick; S. Twomey

1994-03-01T23:59:59.000Z

194

Relative Accuracy of 1-Minute and Daily Total Solar Radiation Data for 12 Global and 4 Direct Beam Solar Radiometers: Preprint  

DOE Green Energy (OSTI)

This report evaluates the relative performance of 12 global and four direct beam solar radiometers deployed at a single site over a 12-month period. Test radiometer irradiances were compared with a reference irradiance consisting of either an absolute cavity radiometer (during calibrations) or a low uncertainty thermopile pyrheliometer (during the evaluation period) for pyrheliometers; and for pyranometers a reference global irradiance computed from the reference pyrheliometer and diffuse irradiance from a shaded pyranometer.

Myers, D. R.; Wilcox, S. M.

2009-03-01T23:59:59.000Z

195

ARM: G-band (183 GHz) Vapor Radiometer profiler: 15 microwave brightness temperatures from 170.0 to 183.3 GHz  

DOE Data Explorer (OSTI)

G-band (183 GHz) Vapor Radiometer profiler: 15 microwave brightness temperatures from 170.0 to 183.3 GHz

Maria Cadeddu

196

Macrocyclic polyaminocarboxylates for stable radiometal antibody conjugates for therapy, SPECT and PET imaging  

DOE Patents (OSTI)

A simple method for the synthesis of 1,4,7, 10-tetraazacyclododecane N,N{prime}N{double_prime},N{prime}{double_prime}-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N{prime},N{double_prime},N{prime}{double_prime}-tetraacetic acid involves cyanomethylating 1,4,7,10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy. 4 figs.

Mease, R.C.; Mausner, L.F.; Srivastava, S.C.

1997-06-17T23:59:59.000Z

197

Macrocyclic polyaminocarboxylates for stable radiometal antibody conjugates for therapy, spect and pet imaging  

DOE Patents (OSTI)

A simple method for the synthesis of 1,4,7, 10-tetraazacyclododecane N,N'N",N'"-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N',N",N'"-tetraacetic acid involves cyanomethylating 1,4,7, 10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy.

Mease, Ronnie C. (Fairfax, VA); Mausner, Leonard F. (Stony Brook, NY); Srivastava, Suresh C. (Setauket, NY)

1997-06-17T23:59:59.000Z

198

Producing radiometals in liquid targets: Proof of feasibility with {sup 94m}Tc  

Science Conference Proceedings (OSTI)

{sup 94m}Tc was produced in a liquid target loaded with a molybdenum-salt solution. This novel technique allows for the irradiation of metals dissolved in a liquid solution, normally only available in metal powder or foil form. By using this approach, the existing liquid targets and transfer infrastructure of many PET cyclotrons can be used to produce radiometals, avoiding the need, expense and challenges of operating solid targets. Such an approach allows for rapid testing of new isotopes for proof of feasibility studies. Different concentrations of Mo solution and their effect on the target performance were tested. Sufficient quantities to allow for preclinical studies were produced.

Hoehr, C.; Badesso, B.; Morley, T.; Trinczek, M.; Buckley, K.; Klug, J.; Zeisler, S.; Hanemaayer, V.; Ruth, T. R.; Benard, F.; Schaffer, P. [TRIUMF, 4004 Wesbrook Mall, V6T 2A3 Vancouver, BC (Canada); TRIUMF, 4004 Wesbrook Mall, V6T 2A3 Vancouver, BC (Canada) and BC Cancer Agency, 600 West 10th Avenue, V5Z 4E6 Vancouver, BC (Canada); TRIUMF, 4004 Wesbrook Mall, V6T 2A3 Vancouver, BC (Canada); TRIUMF, 4004 Wesbrook Mall, V6T 2A3 Vancouver, BC (Canada) and BC Cancer Agency, 600 West 10th Avenue, V5Z 4E6 Vancouver, BC (Canada); BC Cancer Agency, 600 West 10th Avenue, V5Z 4E6 Vancouver, BC (Canada); TRIUMF, 4004 Wesbrook Mall, V6T 2A3 Vancouver, BC (Canada)

2012-12-19T23:59:59.000Z

199

Acronyms  

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

Acronyms Acronyms ADEOS Advanced Earth Observing Satellite (Japan) AERONET Aerosol Robotic Network AirMISR Airborne MISR ARM Atmospheric Radiation Measurement Program ASTER Advanced Spaceborne Thermal Emission and Reflection radiometer ATBD Algorithm Theoretical Basis Document AVHRR Advanced Very High Resolution Radiometer AVIRIS Airborne Visible/Infrared Imaging Spectrometer BRDF Bidirectional Reflectance Distribution Function CART Clouds and Radiation Testbed CERES Clouds and the Earth's Radiant Energy System DAAC Distributed Active Archive Center EOS Earth Observing System EOSDIS EOS Data and Information System GCIP GEWEX Continental-Scale International Project GEWEX Global Energy and Water Cycle Experiment GLI Global Imager GOES Geostationary Operational Environmental Satellite

200

Integration of Global Positioning System and Scanning Water Vapor Radiometers for Precipitable Water Vapor and Cloud Liquid Path Estimates  

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

Integration of Global Positioning System and Scanning Integration of Global Positioning System and Scanning Water Vapor Radiometers for Precipitable Water Vapor and Cloud Liquid Path Estimates V. Mattioli and P. Basili Department of Electronic and Information Engineering University of Perugia Perugia, Italy E. R. Westwater Cooperative Institute for Research in Environmental Sciences University of Colorado National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado Introduction In recent years the Global Positioning System (GPS) has proved to be a reliable instrument for measuring precipitable water vapor (PWV) (Bevis et al. 1992), offering an independent source of information on water vapor when compared with microwave radiometers (MWRs), and/or radiosonde

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

 

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

AVHRR ALBEDO AND BRDF, 1995 . Data set prepared by A. Strahler, AVHRR ALBEDO AND BRDF, 1995 . Data set prepared by A. Strahler, C.L.B. Schaaf and E. Tsvetsinskaya. This albedo and BRDF (Bidirectional Reflectance Distribution Function) data set consists of three files containing BRDF parameters, white-sky albedo and black-sky albedo at solar noon for three bands (350-680nm, 680-3000nm, and 350-30000nm) derived from AVHRR (Advanced Very High Resolution Radiometer). ISLSCP II C4 VEGETATION PERCENTAGE . Data set prepared by C.J. Still, J.A. Berry, G.J. Collatz, and R.S. DeFries. This data set provides the percentage of vegetation (0-100) in each 1 degree grid cell which possesses the C4 photosynthetic pathway. The C4 percentage is determined from data sets that describe the continuous distribution of plant growth forms (i.e.,

202

Radiometric Validation of ERS-1 Along-Track Scanning Radiometer Average Sea Surface Temperature in the Atlantic Ocean  

Science Conference Proceedings (OSTI)

The ERS-1 along-track scanning radiometer (ATSR) provides a half-degree latitude by half-degree longitude average sea surface temperature (ASST) measurement representative of the thermal skin layer of the ocean that is intended for use in global ...

Craig J. Donlon; Ian S. Robinson

1998-06-01T23:59:59.000Z

203

Relative Accuracy of 1-Minute and Daily Total Solar Radiation Data for 12 Global and 4 Direct Beam Solar Radiometers  

Science Conference Proceedings (OSTI)

We evaluated the relative performance of 12 global and four direct beam solar radiometers deployed at a single site over a 12-month period. Test radiometer irradiances were compared with a reference irradiance consisting of either an absolute cavity radiometer (during calibrations) or a low uncertainty thermopile pyrheliometer (during the evaluation period) for pyrheliometers; and for pyranometers a reference global irradiance computed from the reference pyrheliometer and diffuse irradiance from a shaded pyranometer. One minute averages of 3-second data for 12 months from the test instrument measurements were compared with the computed reference data set. Combined uncertainty in the computed reference irradiance is 1.8% {+-} 0.5%. Total uncertainty in the pyranometer comparisons is {+-}2.5%. We show mean percent difference between reference global irradiance and test pyranometer 1 minute data as a function of zenith angle, and percent differences between daily totals for the reference and test irradiances as a function of day number. We offer no explicit conclusion about the performance of instrument models, as a general array of applications with a wide range of instrumentation and accuracy requirements could be addressed with any of the radiometers.

Myers, D.; Wilcox, S. M.

2009-01-01T23:59:59.000Z

204

Cloud Clearing over the Ocean in the Processing of Data from the Along-Track Scanning Radiometer (ATSR)  

Science Conference Proceedings (OSTI)

Infrared radiometric measurements of surface parameters are prone to error if clouds are present in the observation path. The along-track scanning radiometer (ATSR) with its novel dual-view feature is able to correct for absorption effects in the ...

Albin M. Závody; Christopher T. Mutlow; David T. Llewellyn-Jones

2000-05-01T23:59:59.000Z

205

Acquisition Conflict Resolution  

Acquisition Conflict Resolution At the option of the Supplier, a concern may be brought to the Ombuds Office or may be taken to the Internal Conflict Resolution Process

206

Validation of Satellite-Derived Liquid Water Paths Using ARM SGP Microwave Radiometers  

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

Satellite-Derived Liquid Water Paths Using Satellite-Derived Liquid Water Paths Using ARM SGP Microwave Radiometers M. M. Khaiyer and J. Huang Analytical Services & Materials, Inc. Hampton, Virginia P. Minnis, B. Lin, and W. L. Smith, Jr. National Aeronautics and Space Administration Langley Research Center Hampton, Virginia A. Fan Science Applications International Corporation Hampton, Virginia A. Rapp Colorado State University Fort Collins, Colorado Introduction Satellites are useful for monitoring climatological parameters over large domains. They are especially useful for measuring various cloud microphysical and radiative parameters where ground-based instruments are not available. The geostationary operational environmental satellite (GOES) has been used to retrieve cloud and radiative properties over an extended domain centered on the Atmospheric

207

Modification of the collective Thomson scattering radiometer in the search for parametric decay on TEXTOR  

SciTech Connect

Strong scattering of high-power millimeter waves at 140 GHz has been shown to take place in heating and current-drive experiments at TEXTOR when a tearing mode is present in the plasma. The scattering signal is at present supposed to be generated by the parametric decay instability. Here we describe the heterodyne detection system used to characterize the newly discovered signal measured at TEXTOR, and we present spectral shapes in which the signal can appear under different conditions. The radiation is collected by the receiver through a quasi-optical transmission line that is independent of the electron cyclotron resonance heating transmission line, and so the scattering geometry is variable. The signal is detected with 42 frequency channels ranging from 136 to 142 GHz. We demonstrate that the large signal does not originate from gyrotron spurious radiation. The measured signal agrees well with independent backscattering radiometer data.

Nielsen, S. K.; Salewski, M.; Korsholm, S. B.; Leipold, F.; Meo, F.; Michelsen, P.; Stejner, M. [Association EURATOM - DTU, Department of Physics, Technical University of Denmark, Risoe Campus, DK-4000 Roskilde (Denmark); Bongers, W.; Moseev, D.; Westerhof, E. [FOM Institute DIFFER, Dutch Institute for Fundamental Energy Research, Association EURATOM - FOM, Nieuwegein (Netherlands); Oosterbeek, J. W. [Department of Applied Physics, Science and Technology of Nuclear Fusion, Eindhoven University of Technology, NL-5600 MB Eindhoven (Netherlands)

2012-11-15T23:59:59.000Z

208

Use of ARM/NSA Data to Validate and Improve the Remote Sensing Retrieval of Cloud and Surface Properties in the Arctic from AVHRR Data  

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

ARM/NSA Data to Validate and Improve the ARM/NSA Data to Validate and Improve the Remote Sensing Retrieval of Cloud and Surface Properties in the Arctic from AVHRR Data X. Xiong QSS Group, Inc. National Oceanic and Atmospheric Administration National Environmental Satellite, Data, and Information Service Office of Research and Applications Camp Springs, Maryland R. Storvold and C. Marty Geophysical Institute University of Alaska Fairbanks, Alaska K. H. Stamnes Stevens Institute of Technology Hoboken, New Jersey B. D. Zak Sandia National Laboratories Albuquerque, New Mexico Introduction Clouds in the Arctic have an important impact on the radiative energy balance. However, the effects of clouds still constitute one of the largest uncertainties in the study of climate change. Because the surface

209

Arctic Surface, Cloud, and Radiation Properties Based on the AVHRR Polar Pathfinder Dataset. Part I: Spatial and Temporal Characteristics  

Science Conference Proceedings (OSTI)

With broad spectral coverage and high spatial and temporal resolutions, satellite sensors can provide the data needed for the analysis of spatial and temporal variations of climate parameters in data-sparse regions such as the Arctic and ...

Xuanji Wang; Jeffrey R. Key

2005-07-01T23:59:59.000Z

210

Design of a Shadowband Spectral Radiometer for the Retrieval of Thin Cloud Optical Depth, Liquid Water Path, and the Effective Radius  

Science Conference Proceedings (OSTI)

The design and operation of a Thin-Cloud Rotating Shadowband Radiometer (TCRSR) described here was used to measure the radiative intensity of the solar aureole and enable the simultaneous retrieval of cloud optical depth, drop effective radius, ...

M. J. Bartholomew; R. M. Reynolds; A. M. Vogelmann; Q. Min; R. Edwards; S. Smith

2011-11-01T23:59:59.000Z

211

Performance of Commercial Radiometers in Very Low Temperature and Pressure Environments Typical of Polar Regions and of the Stratosphere: A Laboratory Study  

Science Conference Proceedings (OSTI)

Characterizing the performance of ground-based commercial radiometers in cold and/or low-pressure environments is critical for developing accurate flux measurements in the polar regions and in the upper troposphere and stratosphere. Commercially ...

Wenying Su; Ellsworth Dutton; Thomas P. Charlock; Warren Wiscombe

2008-04-01T23:59:59.000Z

212

Rain/No-Rain Classification Methods for Microwave Radiometer Observations over Land Using Statistical Information for Brightness Temperatures under No-Rain Conditions  

Science Conference Proceedings (OSTI)

One of the goals of the Global Precipitation Measurement project, the successor to the Tropical Rainfall Measuring Mission (TRMM), is to produce a 3-hourly global rainfall map using several spaceborne microwave radiometers. It is important, ...

Shinta Seto; Nobuhiro Takahashi; Toshio Iguchi

2005-08-01T23:59:59.000Z

213

A Study of a Retrieval Method for Temperature and Humidity Profiles from Microwave Radiometer Observations Based on Principal Component Analysis and Stepwise Regression  

Science Conference Proceedings (OSTI)

This paper discusses the application of principal component analysis and stepwise regression in the retrieval of vertical profiles of temperature and humidity based on the measurements of a 35-channel microwave radiometer. It uses the radiosonde ...

Haobo Tan; Jietai Mao; Huanhuan Chen; P. W. Chan; Dui Wu; Fei Li; Tao Deng

2011-03-01T23:59:59.000Z

214

Experimental Determination of Water Vapor Profiles from Ground-Based Radiometer Measurements at 21.0 and 31.4 GHz.  

Science Conference Proceedings (OSTI)

Water vapor profiles have been obtained from radiometer measurements at 21.0 and 31.4 GHz and ground values of humidity, temperature and pressure. The inversion technique was based on minimum variance estimation, including constraints derived ...

B. G. Skoog; J. I. H. Askne; G. Elgered

1982-03-01T23:59:59.000Z

215

Radiative Flux Estimation from a Broadband Radiometer Using Synthetic Angular Models in the EarthCARE Mission Framework. Part II: Evaluation  

Science Conference Proceedings (OSTI)

The instantaneous top-of-atmosphere (TOA) radiance-to-flux conversion for the broadband radiometer (BBR) on board the Earth Clouds, Aerosols, and Radiation Explorer (EarthCARE) was assessed in Part I of this paper, by developing theoretical ...

Carlos Domenech; Ernesto Lopez-Baeza; David P. Donovan; Tobias Wehr

2012-09-01T23:59:59.000Z

216

Radiometer and Profiler Analysis of the Effects of a Bore and a Solitary Wave on the Stability of the Nocturnal Boundary Layer  

Science Conference Proceedings (OSTI)

This study uses data from a microwave profiling radiometer (MPR), along with 915-MHz wind profiler, Doppler radar, and surface data to quantify the kinematic and thermodynamic effects of two wave features, an undular bore and a soliton, on the ...

Timothy A. Coleman; Kevin R. Knupp

2011-01-01T23:59:59.000Z

217

Retrieval of Key Aerosol Optical Parameters from Spectral Direct and Diffuse Irradiances Observed by a Radiometer with Nonideal Cosine Response Characteristic  

Science Conference Proceedings (OSTI)

The spectral direct and diffuse irradiances observed by a radiometer with a horizontal surface detector have been frequently used to study aerosol optical parameters, such as aerosol optical thickness (?aer) and single scattering albedo (?). Such ...

Pradeep Khatri; Tamio Takamura; Akihiro Yamazaki; Yutaka Kondo

2012-05-01T23:59:59.000Z

218

Remotely Controlled, Continuous Observations of Infrared Radiance with the CSIRO/ARM Mark II Radiometer at the SGP CART Site  

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

Remotely Controlled, Continuous Observations of Remotely Controlled, Continuous Observations of Infrared Radiance with the CSIRO/ARM Mark II Radiometer at the SGP CART Site C. M. R. Platt and R. T. Austin Department of Atmospheric Science Colorado State University Fort Collins, Colorado C. M. R. Platt and J. A. Bennett Commonwealth Scientific and Industrial Research Organization Atmospheric Research Aspendale, Victoria, Australia Abstract The Commonwealth Scientific and Industrial Research Organization/Atmospheric Radiation Measurement (CSIRO/ARM) Program Mark II infrared (IR) filter radiometer operated continuously at the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) site for a period of five weeks. Data of high quality were obtained by remote operation and data transfer with no evidence of spurious

219

Comparison of Historical Satellite-Based Estimates of Solar Radiation Resources with Recent Rotating Shadowband Radiometer Measurements: Preprint  

DOE Green Energy (OSTI)

The availability of rotating shadow band radiometer measurement data at several new stations provides an opportunity to compare historical satellite-based estimates of solar resources with measurements. We compare mean monthly daily total (MMDT) solar radiation data from eight years of NSRDB and 22 years of NASA hourly global horizontal and direct beam solar estimates with measured data from three stations, collected after the end of the available resource estimates.

Myers, D. R.

2009-03-01T23:59:59.000Z

220

Method to Calculate Uncertainty Estimate of Measuring Shortwave Solar Irradiance using Thermopile and Semiconductor Solar Radiometers  

DOE Green Energy (OSTI)

The uncertainty of measuring solar irradiance is fundamentally important for solar energy and atmospheric science applications. Without an uncertainty statement, the quality of a result, model, or testing method cannot be quantified, the chain of traceability is broken, and confidence cannot be maintained in the measurement. Measurement results are incomplete and meaningless without a statement of the estimated uncertainty with traceability to the International System of Units (SI) or to another internationally recognized standard. This report explains how to use International Guidelines of Uncertainty in Measurement (GUM) to calculate such uncertainty. The report also shows that without appropriate corrections to solar measuring instruments (solar radiometers), the uncertainty of measuring shortwave solar irradiance can exceed 4% using present state-of-the-art pyranometers and 2.7% using present state-of-the-art pyrheliometers. Finally, the report demonstrates that by applying the appropriate corrections, uncertainties may be reduced by at least 50%. The uncertainties, with or without the appropriate corrections might not be compatible with the needs of solar energy and atmospheric science applications; yet, this report may shed some light on the sources of uncertainties and the means to reduce overall uncertainty in measuring solar irradiance.

Reda, I.

2011-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

Acquisition Conflict Resolution  

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

a fair process that maximizes the opportunity for resolution. The Ombuds Office does not conduct official investigations. Note: Contacting the Ombuds Office does not automatically...

222

Thunderstorm Top Structure Observed by Aircraft Overflights with an Infrared Radiometer  

Science Conference Proceedings (OSTI)

Thunderstorm top structure is examined with high spatial resolution radiometric data (visible and infrared) from aircraft overflights together with other storm views, including geosynchronous satellite observations. Results show that overshooting ...

Robert F. Adler; Michael J. Markus; Douglas D. Fenn; Gerard Szejwach; William E. Shenk

1983-04-01T23:59:59.000Z

223

Microwave Radiative Transfer Studies Using Combined Multiparameter Radar and Radiometer Measurements during COHMEX  

Science Conference Proceedings (OSTI)

Theoretical calculations of the upwelling microwave radiances from clouds containing layers of rain, ice, and a melting region were performed at frequencies of 18, 37, and 92 GHz. These frequencies coincide with high-resolution microwave ...

J. Vivekanandan; J. Turk; G. L. Stephens; V. N. Bringi

1990-07-01T23:59:59.000Z

224

Space bounds for resolution  

Science Conference Proceedings (OSTI)

We introduce a new way to measure the space needed in a resolution refutation of a CNF formula in propositional logic. With the former definition [6] the space required for the resolution of any unsatisfiable formula in CNF is linear in the number of ...

Juan Luis Esteban; Jacobo Torán

1999-03-01T23:59:59.000Z

225

Synthesis of macrocyclic polyaminocarboxylates and their use for preparing stable radiometal antibody immunoconjugates for therapy, SPECT and PET imaging  

DOE Patents (OSTI)

A simple method for the synthesis of 1,4,7,10-tetraazacyclododecane N,N{prime}N{double_prime},N{prime}{double_prime}-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N{prime},N{double_prime},N{prime}{double_prime}-tetraacetic acid involves cyanomethylating 1,4,7,10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy. 4 figs.

Mease, R.C.; Mausner, L.F.; Srivastava, S.C.

1995-06-27T23:59:59.000Z

226

Global distributions of total ozone during January and February 1979 as determined from DMSP multichannel filter radiometer measurements  

Science Conference Proceedings (OSTI)

The multichannel filter radiometer instrument (MFR) was first flown on a Defense Meteorological Satellite Program (DMSP) Block 5D series satellite in 1977. Daily analyses of the global distribution of retrieved total ozone are presented for January and February 1979. The temporal and spatial averages and variability of ozone during this period are discussed. Retrieved total column ozone data derived from the MFR measurements for January 1979 are compared with preliminary SBUV measurements and with distributions of total ozone measured between 1958 and 1967.

Luther, F.M.; Ellis, J.S.; Lovill, J.E.; Sullivan, T.J.; Weichel, R.L.

1980-09-01T23:59:59.000Z

227

Results of First Outdoor Comparison Between Absolute Cavity Pyrgeometer (ACP) and Infrared Integrating Sphere (IRIS) Radiometer at PMOD (Presentation)  

DOE Green Energy (OSTI)

The ACP and IRIS are developed to establish a world reference for calibrating pyrgeometers with traceability to SI units. The two radiometers are unwindowed with negligible spectral dependence, and traceable to SI units through the temperature scale (ITS-90). The first outdoor comparison between the two designs was held from January 28 to February 8, 2013 at the Physikalisch-Metorologisches Observatorium Davos (PMOD). The difference between the irradiance measured by ACP and that of IRIS was within 1 W/m2. A difference of 5 W/m2 was observed between the irradiance measured by ACP&IRIS and that of the interim World Infrared Standard Group (WISG).

Reda, I.; Grobner, J.; Wacker, S.; Stoffel, T.

2013-03-01T23:59:59.000Z

228

Synthesis of macrocyclic polyaminocarboxylates and their use for preparing stable radiometal antibody immunoconjugates for therapy, spect and pet imaging  

DOE Patents (OSTI)

A simple method for the synthesis of 1,4,7,10-tetraazacyclododecane N,N'N",N'"-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N',N",N'"-tetraacetic acid involves cyanomethylating 1,4,7,10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy.

Mease, Ronnie C. (Fairfax, VA); Mausner, Leonard F. (Stony Brook, NY); Srivastava, Suresh C. (Setauket, NY)

1995-06-27T23:59:59.000Z

229

ARM - Midlatitude Continental Convective Clouds Microwave Radiometer Profiler (jensen-mwr)  

DOE Data Explorer (OSTI)

A major component of the Mid-latitude Continental Convective Clouds Experiment (MC3E) field campaign was the deployment of an enhanced radiosonde array designed to capture the vertical profile of atmospheric state variables (pressure, temperature, humidity wind speed and wind direction) for the purpose of deriving the large-scale forcing for use in modeling studies. The radiosonde array included six sites (enhanced Central Facility [CF-1] plus five new sites) launching radiosondes at 3-6 hour sampling intervals. The network will cover an area of approximately (300)2 km2 with five outer sounding launch sites and one central launch location. The five outer sounding launch sites are: S01 Pratt, KS [ 37.7oN, 98.75oW]; S02 Chanute, KS [37.674, 95.488]; S03 Vici, Oklahoma [36.071, -99.204]; S04 Morris, Oklahoma [35.687, -95.856]; and S05 Purcell, Oklahoma [34.985, -97.522]. Soundings from the SGP Central Facility during MC3E can be retrieved from the regular ARM archive. During routine MC3E operations 4 radiosondes were launched from each of these sites (approx. 0130, 0730, 1330 and 1930 UTC). On days that were forecast to be convective up to four additional launches were launched at each site (approx. 0430, 1030, 1630, 2230 UTC). There were a total of approximately 14 of these high frequency launch days over the course of the experiment. These files contain brightness temperatures observed at Purcell during MC3E. The measurements were made with a 5 channel (22.235, 23.035, 23.835, 26.235, 30.000GHz) microwave radiometer at one minute intervals. The results have been separated into daily files and the day of observations is indicated in the file name. All observations were zenith pointing. Included in the files are the time variables base_time and time_offset. These follow the ARM time conventions. Base_time is the number seconds since January 1, 1970 at 00:00:00 for the first data point of the file and time_offset is the offset in seconds from base_time.

Mike Jensen

230

ARM - Midlatitude Continental Convective Clouds Microwave Radiometer Profiler (jensen-mwr)  

SciTech Connect

A major component of the Mid-latitude Continental Convective Clouds Experiment (MC3E) field campaign was the deployment of an enhanced radiosonde array designed to capture the vertical profile of atmospheric state variables (pressure, temperature, humidity wind speed and wind direction) for the purpose of deriving the large-scale forcing for use in modeling studies. The radiosonde array included six sites (enhanced Central Facility [CF-1] plus five new sites) launching radiosondes at 3-6 hour sampling intervals. The network will cover an area of approximately (300)2 km2 with five outer sounding launch sites and one central launch location. The five outer sounding launch sites are: S01 Pratt, KS [ 37.7oN, 98.75oW]; S02 Chanute, KS [37.674, 95.488]; S03 Vici, Oklahoma [36.071, -99.204]; S04 Morris, Oklahoma [35.687, -95.856]; and S05 Purcell, Oklahoma [34.985, -97.522]. Soundings from the SGP Central Facility during MC3E can be retrieved from the regular ARM archive. During routine MC3E operations 4 radiosondes were launched from each of these sites (approx. 0130, 0730, 1330 and 1930 UTC). On days that were forecast to be convective up to four additional launches were launched at each site (approx. 0430, 1030, 1630, 2230 UTC). There were a total of approximately 14 of these high frequency launch days over the course of the experiment. These files contain brightness temperatures observed at Purcell during MC3E. The measurements were made with a 5 channel (22.235, 23.035, 23.835, 26.235, 30.000GHz) microwave radiometer at one minute intervals. The results have been separated into daily files and the day of observations is indicated in the file name. All observations were zenith pointing. Included in the files are the time variables base_time and time_offset. These follow the ARM time conventions. Base_time is the number seconds since January 1, 1970 at 00:00:00 for the first data point of the file and time_offset is the offset in seconds from base_time.

Mike Jensen

2012-02-01T23:59:59.000Z

231

Accurate Liquid Water Path Retrieval from Low-Cost Microwave Radiometers Using Additional Information from a Lidar Ceilometer and Operational Forecast Models  

Science Conference Proceedings (OSTI)

Water clouds have an important impact on the radiative balance of the earth. The use of ground-based dual-frequency microwave radiometers to derive both liquid water path (LWP) and water vapor path (WVP) is well established, but uncertainties ...

Nicolas Gaussiat; Robin J. Hogan; Anthony J. Illingworth

2007-09-01T23:59:59.000Z

232

Validation of Geolocation of Measurements of the Clouds and the Earth’s Radiant Energy System (CERES) Scanning Radiometers aboard Three Spacecraft  

Science Conference Proceedings (OSTI)

The Clouds and the Earth’s Radiant Energy System (CERES) instrument is a scanning radiometer for measuring Earth-emitted and -reflected solar radiation to understand Earth’s energy balance. One CERES instrument was placed into orbit aboard the ...

G. Louis Smith; Kory J. Priestley; Phillip C. Hess; Chris Currey; Peter Spence

2009-11-01T23:59:59.000Z

233

SAFARI 2000 Data Sets Available  

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

Data Sets Available Data Sets Available The ORNL DAAC announces the release of four data sets for the SAFARI 2000 project. Two data sets, "SAFARI 2000 TOMS Tropospheric Ozone Data, Southern Africa Subset, Dry Season 2000" and "SAFARI 2000 TOMS Aerosol Index Data, Southern Africa, Dry Season 2000," contain ozone and aerosol data from the Earth Probe (EP) Total Ozone Mapping Spectrometer (TOMS) for the time period August-September 2000. The data set "SAFARI 2000 AVHRR Daily Site (1.5 km) and 15-Day Regional (1.5- and 6-km) Imagery" contains remotely sensed satellite data products at the site and regional level provided by the Global Inventory Mapping and Modeling (GIMMS) group at NASA/GSFC. These Advanced Very High Resolution Radiometer (AVHRR) data contain site extracts of SAFARI core sites (Mongu,

234

GVR (G-Band Vapor Radiometer) M.P. Cadeddu and J.C. Liljegren Argonne Natl. Laboratory  

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

ARM 90/150 GHz data at ARM 90/150 GHz data at COPS M.P. Cadeddu, A. Vogelmann, D.D. Turner, S. Crewell, U. Lönhert MWRHF (90/150) data Data available at archives from 06/22 to 12/31 Challenges associated with instrument: New instrument - new technology We still need to learn about calibration Spectral region (WV continuum) still uncertain in models Data available at archives from 06/22 to 12/31 Challenges associated with instrument: New instrument - new technology We still need to learn about calibration Spectral region (WV continuum) still uncertain in models Weather conditions were not ideal for the initial testing of the instrument. The radiometer did not calibrate from 06/30 until 10/13 The few calibrations in June may have been affected by dew formation Calibration of summer data is

235

Particle detector spatial resolution  

DOE Patents (OSTI)

Method and apparatus for producing separated columns of scintillation layer material, for use in detection of X-rays and high energy charged particles with improved spatial resolution is disclosed. A pattern of ridges or projections is formed on one surface of a substrate layer or in a thin polyimide layer, and the scintillation layer is grown at controlled temperature and growth rate on the ridge-containing material. The scintillation material preferentially forms cylinders or columns, separated by gaps conforming to the pattern of ridges, and these columns direct most of the light produced in the scintillation layer along individual columns for subsequent detection in a photodiode layer. The gaps may be filled with a light-absorbing material to further enhance the spatial resolution of the particle detector. 12 figs.

Perez-Mendez, V.

1992-12-15T23:59:59.000Z

236

High resolution data acquisition  

DOE Patents (OSTI)

A high resolution event interval timing system measures short time intervals such as occur in high energy physics or laser ranging. Timing is provided from a clock pulse train and analog circuitry for generating a triangular wave synchronously with the pulse train. The triangular wave has an amplitude and slope functionally related to the time elapsed during each clock pulse in the train. A converter forms a first digital value of the amplitude and slope of the triangle wave at the start of the event interval and a second digital value of the amplitude and slope of the triangle wave at the end of the event interval. A counter counts the clock pulse train during the interval to form a gross event interval time. A computer then combines the gross event interval time and the first and second digital values to output a high resolution value for the event interval.

Thornton, G.W.; Fuller, K.R.

1992-12-31T23:59:59.000Z

237

Free resolutions of algebras.  

E-Print Network (OSTI)

Given an algebra A, presented by generators and relations, i.e. as a quotient of a tensor algebra by an ideal, we construct a free algebra resolution of A, i.e. a differential graded algebra which is quasi-isomorphic to A and which is itself a tensor algebra. The construction rests combinatorially on the set of bracketings that arise naturally in the description of a free contractible differential graded algebra with given generators.

Joe Chuang; Alastair King

238

High resolution telescope  

DOE Patents (OSTI)

A large effective-aperture, low-cost optical telescope with diffraction-limited resolution enables ground-based observation of near-earth space objects. The telescope has a non-redundant, thinned-aperture array in a center-mount, single-structure space frame. It employs speckle interferometric imaging to achieve diffraction-limited resolution. The signal-to-noise ratio problem is mitigated by moving the wavelength of operation to the near-IR, and the image is sensed by a Silicon CCD. The steerable, single-structure array presents a constant pupil. The center-mount, radar-like mount enables low-earth orbit space objects to be tracked as well as increases stiffness of the space frame. In the preferred embodiment, the array has elemental telescopes with subaperture of 2.1m in a circle-of-nine configuration. The telescope array has an effective aperture of 12m which provides a diffraction-limited resolution of 0.02 arc seconds. Pathlength matching of the telescope array is maintained by an electro-optical system employing laser metrology. Speckle imaging relaxes pathlength matching tolerance by one order of magnitude as compared to phased arrays. Many features of the telescope contribute to substantial reduction in costs. These include eliminating the conventional protective dome and reducing on-site construction activities. The cost of the telescope scales with the first power of the aperture rather than its third power as in conventional telescopes. 9 figs., 1 tab.

Massie, N.A.; Oster, Y.

1990-01-01T23:59:59.000Z

239

High resolution telescope  

DOE Patents (OSTI)

A large effective-aperture, low-cost optical telescope with diffraction-limited resolution enables ground-based observation of near-earth space objects. The telescope has a non-redundant, thinned-aperture array in a center-mount, single-structure space frame. It employs speckle interferometric imaging to achieve diffraction-limited resolution. The signal-to-noise ratio problem is mitigated by moving the wavelength of operation to the near-IR, and the image is sensed by a Silicon CCD. The steerable, single-structure array presents a constant pupil. The center-mount, radar-like mount enables low-earth orbit space objects to be tracked as well as increases stiffness of the space frame. In the preferred embodiment, the array has elemental telescopes with subaperture of 2.1 m in a circle-of-nine configuration. The telescope array has an effective aperture of 12 m which provides a diffraction-limited resolution of 0.02 arc seconds. Pathlength matching of the telescope array is maintained by an electro-optical system employing laser metrology. Speckle imaging relaxes pathlength matching tolerance by one order of magnitude as compared to phased arrays. Many features of the telescope contribute to substantial reduction in costs. These include eliminating the conventional protective dome and reducing on-site construction activites. The cost of the telescope scales with the first power of the aperture rather than its third power as in conventional telescopes.

Massie, Norbert A. (San Ramon, CA); Oster, Yale (Danville, CA)

1992-01-01T23:59:59.000Z

240

High resolution telescope  

DOE Patents (OSTI)

A large effective-aperture, low-cost optical telescope with diffraction-limited resolution enables ground-based observation of near-earth space objects. The telescope has a non-redundant, thinned-aperture array in a center-mount, single-structure space frame. It employs speckle interferometric imaging to achieve diffraction-limited resolution. The signal-to-noise ratio problem is mitigated by moving the wavelength of operation to the near-IR, and the image is sensed by a Silicon CCD. The steerable, single-structure array presents a constant pupil. The center-mount, radar-like mount enables low-earth orbit space objects to be tracked as well as increases stiffness of the space frame. In the preferred embodiment, the array has elemental telescopes with subaperture of 2.1m in a circle-of-nine configuration. The telescope array has an effective aperture of 12m which provides a diffraction-limited resolution of 0.02 arc seconds. Pathlength matching of the telescope array is maintained by an electro-optical system employing laser metrology. Speckle imaging relaxes pathlength matching tolerance by one order of magnitude as compared to phased arrays. Many features of the telescope contribute to substantial reduction in costs. These include eliminating the conventional protective dome and reducing on-site construction activities. The cost of the telescope scales with the first power of the aperture rather than its third power as in conventional telescopes. 9 figs., 1 tab.

Massie, N.A.; Oster, Y.

1990-12-31T23:59:59.000Z

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


241

High resolution time interval meter  

DOE Patents (OSTI)

Method and apparatus are provided for measuring the time interval between two events to a higher resolution than reliability available from conventional circuits and component. An internal clock pulse is provided at a frequency compatible with conventional component operating frequencies for reliable operation. Lumped constant delay circuits are provided for generating outputs at delay intervals corresponding to the desired high resolution. An initiation START pulse is input to generate first high resolution data. A termination STOP pulse is input to generate second high resolution data. Internal counters count at the low frequency internal clock pulse rate between the START and STOP pulses. The first and second high resolution data are logically combined to directly provide high resolution data to one counter and correct the count in the low resolution counter to obtain a high resolution time interval measurement.

Martin, A.D.

1986-05-09T23:59:59.000Z

242

Monitoring of Precipitable Water Vapor and Cloud Liquid Path from Scanning Microwave Radiometers During the 2003 Cloudiness Inter-Comparison Experiment  

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

Monitoring of Precipitable Water Vapor and Cloud Liquid Monitoring of Precipitable Water Vapor and Cloud Liquid Path from Scanning Microwave Radiometers During the 2003 Cloudiness Inter-Comparison Experiment V. Mattioli Department of Electronic and Information Engineering University of Perugia Perugia, Italy E. R. Westwater Cooperative Institute for Research in Environmental Sciences University of Colorado National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado V. Morris Pacific Northwest National Laboratory Richland, Washington Introduction Ground-based microwave radiometers (MWR) are widely used to measure atmospheric precipitable water vapor (PWV) and cloud liquid path (CLP). Comparisons of PWV derived from MWRs with water vapor retrievals from instruments like radiosondes, Global Positioning System (GPS) and Raman

243

Y High-Resolution  

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

Y Y High-Resolution . __ DO NOT M I C PET COVER for medical science studies Lawrence Berkeley Laboratory University of California September 1989 DlSTRlBUTlGN OF THIS DOCUMENT IS U#LIIY/ITEE Acknowledgments This booklet was prepared under the sponsorship of the U.S. Department of Energy Office of Health Effects Research, the National Institutes of Health, and the Lawrence Berkeley Laboratory's Research Medicine and Radiation Biophysics Division. We thank Sarah Cahn and Douglas Vaughan for coordination of this booklet. esolution PET for Medical Science Studies Thomas F. Budinger Stephen E. Derenzo Ronald H. Huesman William J. Jagust Peter E. Valk CONTENTS A PET Primer Positron Emission Tomography: Evolution of a Technology 7 PET Theory: Emission, Detection, and Reconstruction

244

Atmospheric Temperature and Absolute Humidity Profiles over the Beaufort Sea and Amundsen Gulf from a Microwave Radiometer  

Science Conference Proceedings (OSTI)

A Radiometrics MP-3000A microwave radiometric profiler (MWRP) provided high temporal resolution atmospheric profiles for temperature and absolute humidity up to 10 km, while 113 radiosondes were launched (and 68 were used in the analysis) over sea ...

Lauren M. Candlish; Richard L. Raddatz; Matthew G. Asplin; David G. Barber

2012-09-01T23:59:59.000Z

245

Apparent resolution enhancement for animations  

Science Conference Proceedings (OSTI)

Presenting the variety of high resolution images captured by high-quality devices, or generated on the computer, is challenging due to the limited resolution of current display devices. Our recent work addressed this problem by taking into account human ... Keywords: eye tracking, image reconstruction, perception

Krzysztof Templin; Piotr Didyk; Tobias Ritschel; Elmar Eisemann; Karol Myszkowski; Hans-Peter Seidel

2011-04-01T23:59:59.000Z

246

Design of a Shadowband Spectral Radiometer for the Retrieval of Thin Cloud Optical Depth, Liquid Water Path, and the Effective Radius  

SciTech Connect

The design and operation of a Thin-Cloud Rotating Shadowband Radiometer (TCRSR) described here was used to measure the radiative intensity of the solar aureole and enable the simultaneous retrieval of cloud optical depth, drop effective radius, and liquid water path. The instrument consists of photodiode sensors positioned beneath two narrow metal bands that occult the sun by moving alternately from horizon to horizon. Measurements from the narrowband 415-nm channel were used to demonstrate a retrieval of the cloud properties of interest. With the proven operation of the relatively inexpensive TCRSR instrument, its usefulness for retrieving aerosol properties under cloud-free skies and for ship-based observations is discussed.

Bartholomew M. J.; Reynolds, R. M.; Vogelmann, A. M.; Min, Q.; Edwards, R.; Smith, S.

2011-11-01T23:59:59.000Z

247

MWRRET Value-Added Product: The Retrieval of Liquid Water Path and Precipitable Water Vapor from Microwave Radiometer (MWR) Data Sets (Revision 2)  

SciTech Connect

This report provides a short description of the Atmospheric Radiation Measurement (ARM) Climate Research Facility microwave radiometer (MWR) Retrieval (MWRRET) value-added product (VAP) algorithm. This algorithm utilizes a complementary physical retrieval method and applies brightness temperature offsets to reduce spurious liquid water path (LWP) bias in clear skies resulting in significantly improved precipitable water vapor (PWV) and LWP retrievals. We present a general overview of the technique, input parameters, output products, and describe data quality checks. A more complete discussion of the theory and results is given in Turner et al. (2007b).

Gaustad, KL; Turner, DD; McFarlane, SA

2011-07-25T23:59:59.000Z

248

Resolution-enhanced photometric stereo  

Science Conference Proceedings (OSTI)

Conventional photometric stereo has a fundamental limitation that the scale of recovered geometry is limited to the resolution of the input images. However, surfaces that contain sub-pixel geometric structures are not well modelled by a single normal ...

Ping Tan; Stephen Lin; Long Quan

2006-05-01T23:59:59.000Z

249

Atmospheric Longwave Irradiance Uncertainty: Pyrgeometers Compared to an Absolute Sky-Scanning Radiometer, Atmospheric Emitted Radiance Interferometer, and Radiative Transfer Model Calculations  

SciTech Connect

Because atmospheric longwave radiation is one of the most fundamental elements of an expected climate change, there has been a strong interest in improving measurements and model calculations in recent years. Important questions are how reliable and consistent are atmospheric longwave radiation measurements and calculations and what are the uncertainties? The First International Pyrgeometer and Absolute Sky-scanning Radiometer Comparison, which was held at the Atmospheric Radiation Measurement program's Souther Great Plains site in Oklahoma, answers these questions at least for midlatitude summer conditions and reflects the state of the art for atmospheric longwave radiation measurements and calculations. The 15 participating pyrgeometers were all calibration-traced standard instruments chosen from a broad international community. Two new chopped pyrgeometers also took part in the comparison. And absolute sky-scanning radiometer (ASR), which includes a pyroelectric detector and a reference blackbody source, was used for the first time as a reference standard instrument to field calibrate pyrgeometers during clear-sky nighttime measurements. Owner-provided and uniformly determined blackbody calibration factors were compared. Remarkable improvements and higher pyrgeometer precision were achieved with field calibration factors. Results of nighttime and daytime pyrgeometer precision and absolute uncertainty are presented for eight consecutive days of measurements, during which period downward longwave irradiance varied between 260 and 420 W m-2. Comparisons between pyrgeometers and the absolute ASR, the atmospheric emitted radiance interferometer, and radiative transfer models LBLRTM and MODTRAN show a surprisingly good agreement of <2 W m-2 for nighttime atmospheric longwave irradiance measurements and calculations.

Philipona, J. R.; Dutton, Ellsworth G.; Stoffel, T.; Michalsky, Joseph J.; Reda, I.; Stifter, Armin; Wendling, Peter; Wood, Norm; Clough, Shepard A.; Mlawer, Eli J.; Anderson, Gail; Revercomb, Henry E.; Shippert, Timothy R.

2001-06-04T23:59:59.000Z

250

High resolution digital delay timer  

DOE Patents (OSTI)

Method and apparatus are provided for generating an output pulse following a trigger pulse at a time delay interval preset with a resolution which is high relative to a low resolution available from supplied clock pulses. A first lumped constant delay (20) provides a first output signal (24) at predetermined interpolation intervals corresponding to the desired high resolution time interval. Latching circuits (26, 28) latch the high resolution data (24) to form a first synchronizing data set (60). A selected time interval has been preset to internal counters (142, 146, 154) and corrected for circuit propagation delay times having the same order of magnitude as the desired high resolution. Internal system clock pulses (32, 34) count down the counters to generate an internal pulse delayed by an interval which is functionally related to the preset time interval. A second LCD (184) corrects the internal signal with the high resolution time delay. A second internal pulse is then applied to a third LCD (74) to generate a second set of synchronizing data (76) which is complementary with the first set of synchronizing data (60) for presentation to logic circuits (64). The logic circuits (64) further delay the internal output signal (72) to obtain a proper phase relationship of an output signal (80) with the internal pulses (32, 34). The final delayed output signal (80) thereafter enables the output pulse generator (82) to produce the desired output pulse (84) at the preset time delay interval following input of the trigger pulse (10, 12).

Martin, Albert D. (Los Alamos, NM)

1988-01-01T23:59:59.000Z

251

Nonlinear effects in kinetic resolutions  

E-Print Network (OSTI)

The impact of nonlinear effects in the asymmetric catalysis of kinetic resolutions is analyzed. It is found with minimal assumptions that the kinetics of homocompetitive reactions should apply generally to kinetic resolutions involving partially resolved catalysts, and this is supported by experimental observations with the Jacobsen hydrolytic kinetic resolution (HKR) of epoxides. The criterion for a nonlinear effect in asymmetric catalysis--a nonlinear correlation between the enantiomeric excess in a choral ligand and the product enantiomeric excess obtained from a reaction--is examined. The nonlinear effect idea is found to be generalizable to kinetic resolutions and other reactions by replacing consideration of the product enantiomeric excess with the quantity (k[]/k[]-1)/(k[]/k[]+1), a differential kinetic enantiomeric enhancement (DKEE). A nonlinear effect may then be defined by a nonlinear correlation between the DKEE and the chiral ligand enantiomeric excess. The application of these ideas to previously reported kinetic resolutions of sulfoxides and to nonlinear effects in the Jacobsen HKR is described. Relatively small nonlinear effects in kinetic resolutions are sufficient to obtain large asymmetric amplifications. A catalyst modification in the Jacobsen HKR also allows for the development of a novel recyclable system for the iterative enhancement of optical activity.

Johnson, Derrell W.

1999-01-01T23:59:59.000Z

252

MWRRET (Microwave Radiometer Retrievals)  

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

Plus Plus Plus Andy Vogelmann, Dave Turner Andy Vogelmann, Dave Turner & Jennifer Comstock & Jennifer Comstock Min Min Susanne Crewell Susanne Crewell Ulrich L Ulrich L ö ö rnard rnard Jim Liljegren Jim Liljegren John Ogre John Ogre . Y. Matrosov . Y. Matrosov Sally McFarlane Sally McFarlane Warren Wiscombe, Christine Chiu, Sasha Marshak, Maria Warren Wiscombe, Christine Chiu, Sasha Marshak, Maria Cadeddu, Qilong Min, Susanne Crewell, Ulrich L Cadeddu, Qilong Min, Susanne Crewell, Ulrich L ö ö hnert, Mandy hnert, Mandy M. Khaiyer, Greg McFarquhar , Chuck Long, Bill O M. Khaiyer, Greg McFarquhar , Chuck Long, Bill O ' ' Hirok, Bin Hirok, Bin Lin, Connor Flynn, Eli Mlawer, Graham Feingold, Jim Barnard, Lin, Connor Flynn, Eli Mlawer, Graham Feingold, Jim Barnard,

253

Alternative Dispute Resolution | Department of Energy  

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

Alternative Dispute Resolution Alternative Dispute Resolution Alternative Dispute Resolution Alternative Dispute Resolution The Office of Conflict Prevention and Resolution (formerly the Office of Dispute Resolution) provides assistance throughout the Department and to its contractors on using various types of Alternative Dispute Resolution (ADR) to prevent and resolve disputes without litigation. The Director of the office offers training, provides system design support, and acts as a consultant for all types of dispute resolution, ranging from preventive techniques, such as partnering, differing professional opinion processes and ombuds, to mediation in many types of disputes, such as intellectual property, contracts, environmental, grants, equal employment opportunity (Title VII), and whistleblower complaints.

254

3-Dimensional Imaging At Nanometer Resolutions  

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

Information Technology & Communications 3-Dimensional Imaging At Nanometer Resolutions 3-Dimensional Imaging At Nanometer Resolutions An apparatus and method for enabling...

255

Dielectric microscopy with submillimeter resolution  

E-Print Network (OSTI)

In analogy with optical near-field scanning methods, we use tapered dielectric waveguides as probes for a millimeter wave vector network analyzer. By scanning thin samples between two such probes we are able to map the spatially varying dielectric properties of materials with sub-wavelength resolution; using a 150 GHz probe in transmision mode we see spatial resolution of around 500 microns. We have applied this method to a variety of highly heterogeneous materials. Here we show dielectric maps of granite and oil shale.

Nathan S. Greeney; John A. Scales

2007-06-20T23:59:59.000Z

256

Molecular image resolution in electron microscopy  

Science Conference Proceedings (OSTI)

In order to determine the ultimate molecular resolution attainable with a conventional electron microscope

Natsu Uyeda; Takashi Kobayashi; Eiji Suito; Yoshiyasu Harada

1972-01-01T23:59:59.000Z

257

Radiometry High Spectral Resolution Fourier  

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

High Spectral Resolution Fourier High Spectral Resolution Fourier Transform Infrared Instruments for the Atmospheric Radiation Measurement Program H. E. Revercomb, W. L. Smith, R. O. Knuteson, F. A. Best, R. G. Dedecker, T. P. Dirkx, R. A. Herbsleb, and J. F. Short University of Wisconsin Madison, Wisconsin H. B. Howell National Oceanic and Atmospheric Administration Systems Design and Applications Branch Madison, Wisconsin D. Murcray and F. Murcray University of Denver Denver, Colorado Accurate and spectrally detailed observations of the thermal emission from radiatively important atmospheric gases, aerosols, and clouds have been identified as crucial for realizing the overall objectives of the Atmospheric Radiation Measurement (ARM) Program to improve the treatment of radiation and clouds in climate models. The observed

258

A Power and Resolution Adaptive  

E-Print Network (OSTI)

A new power and resolution adaptive flash ADC, named PRA-ADC, is proposed. The PRA-ADC enables exponential power reduction with linear resolution reduction. Unused parallel voltage comparators are switched to standby mode. The voltage comparators consume only the leakage power during the standby mode. The PRA-ADC, capable of operating at 5-bit, 6-bit, 7-bit, and 8-bit precision, dissipates 69 mW at 5-bit and 435 mW at 8-bit. The PRA-ADC was designed and simulated with 0.18 m CMOS technology. The PRA-ADC design is applicable to RF portable communication devices, allowing tighter management of power and e#ciency.

Flash Analog-To-Digital Converter; Jincheol Yoo; Daegyu Lee; Kyusun Choi; Jongsoo Kim

2002-01-01T23:59:59.000Z

259

Highest-Resolution Ribosome Structure  

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

Highest-Resolution Ribosome Structure Print Highest-Resolution Ribosome Structure Print The last step in converting the genetic information stored in DNA into the major functional parts of cells is protein biosynthesis. Protein synthesis occurs on the ribosome, a cellular factory found in all forms of life. In contrast to most cellular machines, the ribosome contains a functional core of RNA that is enhanced by ribosomal proteins and accessory factors. Two structures of the intact ribosome from the common bacterium Escherichia coli, determined by a Berkeley-Berlin collaboration to a resolution of 3.5 Ã…, the highest yet achieved, provide many new insights into how the ribosome factory works. Ribosomes Ready for Extreme Close-Up In 1999, the first structure of the intact ribosome-a very large, asymmetric protein that is difficult to crystallize-was solved by x-ray crystallography at the ALS (see "Solving the Ribosome Puzzle"). Since then, scientists have developed quite an extensive photo gallery of ribosomes from various organisms and in various configurations. More importantly, they have sharpened the focus significantly, going from a resolution of 7.8 Ã… in 1999, to 5.5 Ã… in 2001 (see "Zooming in on Ribosomes"), to an amazing 3.5 Ã… in this latest work. What was initially seen as fuzzy "fingers" of electron density can now be resolved into individual nucleotides in the RNA strands. Serendipitously, the crystals used in this particular study contained two versions of the ribosome, each one in a different "pose," allowing the researchers to compare the positions of the various parts and deduce how they work. With these sharper images, scientists are now better able to interpret previous data, test models, and develop new theories, both practical (how do antibiotics that target the ribosome work?) and theoretical (how much has the ribosome evolved from bacteria to human?). Stay tuned.

260

1  

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

Improving GCM Aerosol Climatology using Satellite and Improving GCM Aerosol Climatology using Satellite and Ground-Based Measurements L. Liu Department of Applied Physics and Applied Mathematics Columbia University New York, New York A.A. Lacis, B.E. Carlson, M.I. Mishchenko, and B. Cairns NASA Goddard Institute for Space Studies New York, New York Abstract A physically based aerosol climatology is essential to address the questions of global climate changes. We use available satellite and ground-based measurements, i.e., moderate-resolution imaging spectroradiometer (MODIS), multiangle imaging spectroradiometer (MISR), Polarization and Directionality of the earth's Reflectance (POLDER), advanced very high resolution radiometer (AVHRR), and Aerosol Robotic Network (AERONET) data, to characterize the geographic distribution

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

1  

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

Building Climatologies of Atmospheric Aerosols, Building Climatologies of Atmospheric Aerosols, Trace Gases, and Water Vapor on the Basis of MFRSR Remote Sensing Retrievals M. D. Alexandrov, A. A. Lacis, B. E. Carlson, and B. Cairns Columbia University National Aeronautics and Space Administration Goddard Institute for Space Studies New York, New York Introduction Atmospheric (and especially tropospheric) aerosols with their direct and indirect radiative forcing remain the source of one of the most significant uncertainties in climate change modeling. Retrieval of aerosol spatial and temporal distribution on a global scale is a task for current and future satellite measurements [such as advanced very high-resolution radiometer (AVHRR), Total Ozone Mapping Experiment Spectrometer (TOMS), moderate resolution imaging spectroradiometer (MODIS), MISR,

262

Free resolutions via Gröbner bases.  

E-Print Network (OSTI)

For associative algebras in many different categories, it is possible to develop the machinery of Gröbner bases. A Gröbner basis of defining relations for an algebra of such a category provides a "monomial replacement" of this algebra. The main goal of this article is to demonstrate how this machinery can be used for the purposes of homological algebra. More precisely, our approach goes in three steps. First, we define a combinatorial resolution for the monomial replacement of an object. Second, we extract from those resolutions explicit representatives for homological classes. Finally, we explain how to "deform" the differential to handle the general case. For associative algebras, we recover a well known construction due to Anick. The other case we discuss in detail is that of operads, where we discover resolutions that haven't been known previously. We present various applications, including a proofs of Hoffbeck's PBW criterion, a proof of Koszulness for a class of operads coming from commutative algebras, and a homology computation for the operads of Batalin--Vilkovisky algebras and of Rota--Baxter algebras.

Vladimir Dotsenko; Anton Khoroshkin

263

Smooth mixed-resolution GPU volume rendering  

Science Conference Proceedings (OSTI)

We propose a mixed-resolution volume ray-casting approach that enables more flexibility in the choice of downsampling positions and filter kernels, allows freely mixing volume bricks of different resolutions during rendering, and does not require modifying ...

Johanna Beyer; Markus Hadwiger; Torsten Möller; Laura Fritz

2008-08-01T23:59:59.000Z

264

The Low-Resolution CCSM4  

Science Conference Proceedings (OSTI)

The low-resolution version of the Community Climate System Model, version 4 (CCSM4) is a computationally efficient alternative to the intermediate and standard resolution versions of this fully coupled climate system model. It employs an ...

Christine A. Shields; David A. Bailey; Gokhan Danabasoglu; Markus Jochum; Jeffrey T. Kiehl; Samuel Levis; Sungsu Park

2012-06-01T23:59:59.000Z

265

High Resolution Transmission Microscopy Characterization of an ...  

Science Conference Proceedings (OSTI)

High Resolution Transmission Microscopy Characterization of an Oxide ... Line Dislocation Dynamics Simulation of fundamental dislocation properties in ...

266

Reconcile: A Coreference Resolution Research Platform  

Science Conference Proceedings (OSTI)

Despite the availability of standard data sets and metrics, approaches to the problem of noun phrase coreference resolution are hard to compare empirically due to the different evaluation setting stemming, in part, from the lack of comprehensive coreference resolution research platforms. In this tech report we present Reconcile, a coreference resolution research platform that aims to facilitate the implementation of new approaches to coreference resolution as well as the comparison of existing approaches. We discuss Reconcile's architecture and give results of running Reconcile on six data sets using four evaluation metrics, showing that Reconcile's performance is comparable to state-of-the-art systems in coreference resolution.

Stoyanov, V; Cardie, C; Gilbert, N; Riloff, E; Buttler, D; Hysom, D

2009-10-29T23:59:59.000Z

267

Reducing ADC Resolution by Using . . .  

E-Print Network (OSTI)

This contribution compares the required resolution of an analog-to-digital converter (ADC) when analog or digital band-pass filters are used for band separating in FDD based VDSL. It considers different band allocation scenarios, mostly for FTTCab deployment, and analyzes the reduction of the received signal dynamic range when analog filters are used. The obtained results are line code independent and show that a significant possible relaxation in ADC requirements may be achieved if analog band-pass filters are used instead of digital ones. Notice This document has been prepared to assist the Standard Committee T1-Telecommunications. It is offered to the Committee as a basis for discussion and is not a binding proposal on the companies involved. The requirements presented in this document are subject to change in form and numerical value after more study. The companies involved specifically reserve the right to add to, or amend, the statements contained herein. ----------------------...

Vladimir Oksman

1999-01-01T23:59:59.000Z

268

Alternative Dispute Resolution | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Alternative Dispute Resolution | National Nuclear Security Administration Alternative Dispute Resolution | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Alternative Dispute Resolution Home > About Us > Our Operations > Management and Budget > Office of Civil Rights > Alternative Dispute Resolution Alternative Dispute Resolution The NNSA Alternative Dispute Resolution (ADR) Program is designed as an

269

PMCO: Issue Resolution | Department of Energy  

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

PMCO: Issue Resolution PMCO: Issue Resolution PMCO: Issue Resolution The expertise available within the Project Management Coordination Office (PMCO) team is regularly called upon to resolve issues that cut across technology offices and require prompt resolution. PMCO prioritizes these actions to ensure they are successfully brought to closure. Examples include: Management of Congressionally Directed Projects (CDPs) and CDP Portfolio Oversight; improving Financial Assistance Closeout performance; and developing and executing the application receipt, review and selection process for 48C tax credit requests. Responsibilities Resolves Office of Energy Efficiency and Renewable Energy (EERE) issues in an efficient and expedited manner Mobilizes small and nimble teams to address specific problem sets

270

High Resolution Chemical and Mechanical Characterization of ...  

Science Conference Proceedings (OSTI)

Presentation Title, High Resolution Chemical and Mechanical Characterization of Energy Related Materials. Author(s), Michel L Trudeau, Lisa Rodrigue, René ...

271

Dispute Resolution Information | Department of Energy  

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

Department of the Navy ADR DOE's Office of Civil Rights and Diversity EEOC Federal Sector Alternative Dispute Resolution EEOC Laws, Regulations & Policy Guidance Federal Energy...

272

3D Micron-resolution Laue Diffraction  

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

by single rotation - Time resolution (4D) Grain outline determined - Ray tracing - conical slit - Back-projection tomography E>50 keV allows deep measurements Tensile...

273

Property:TemporalResolution | Open Energy Information  

Open Energy Info (EERE)

Property Edit with form History Facebook icon Twitter icon Property:TemporalResolution Jump to: navigation, search This is a property of type String. Pages using the property...

274

Property:SpatialResolution | Open Energy Information  

Open Energy Info (EERE)

Property Edit with form History Facebook icon Twitter icon Property:SpatialResolution Jump to: navigation, search This is a property of type String. Pages using the property...

275

Removal of Atmospheric Effects prom AVHRR Albedos  

Science Conference Proceedings (OSTI)

Based on numerical simulations, coefficients are determined to be used in a linear relationship between clear-sky planetary albedo and surface albedo. Thew coefficients are given as functions of solar zenith angle and atmospheric parameters for ...

Peter Koepke

1989-12-01T23:59:59.000Z

276

Cloud Particle Phase Determination with the AVHRR  

Science Conference Proceedings (OSTI)

An accurate determination of cloud particle phase is required for the retrieval of other cloud properties from satellite and for radiative flux calculations in climate models. The physical principles underlying phase determination using the ...

Jeffrey R. Key; Janet M. Intrieri

2000-10-01T23:59:59.000Z

277

ARM - Publications: Science Team Meeting Documents  

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

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

278

ARM - Facility News Article  

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

The Tale of the Tapes-No More Boxes of Data! The Tale of the Tapes-No More Boxes of Data! Bookmark and Share In October 1997, the ARM Program entered into a contract with the University of Alaska-Fairbanks to obtain image data covering the ARM Climate Research Facility's North Slope of Alaska (NSA) locale. Image data taken by an advanced very high resolution radiometer (AVHRR) are collected by a satellite receiver at Fairbanks and, up until February 2004, were stored on 4mm tapes. These boxes were then shipped by the boxful to the ARM Climate Research Facility External Data Center every six months. Once at the External Data Center, the data was processed into standard "hierarchical data format" or HDF files and transferred to the ARM Climate Research Facility Data Archive for use by ARM researchers. All data from

279

Cosmological implications of the MAXIMA-1 high-resolution cosmicmicrowave background anisotropy measurement  

SciTech Connect

We discuss the cosmological implications of the new constraints on the power spectrum of the cosmic microwave background (CMB) anisotropy derived from a new high-resolution analysis of the MAXIMA-1 measurement. The power spectrum indicates excess power at lsimilar to 860 over the average level of power at 411 less than or equal to l less than or equal to 785. This excess is statistically significant at the similar to 95 percent confidence level. Its position coincides with that of the third acoustic peak, as predicted by generic inflationary models selected to fit the first acoustic peak as observed in the data. The height of the excess power agrees with the predictions of a family of inflationary models with cosmological parameters that are fixed to fit the CMB data previously provided by BOOMERANG-LDB and MAXIMA-1 experiments. Our results therefore lend support for inflationary models and more generally for the dominance of adiabatic coherent perturbations in the structure formation of the universe. At the same time, they seem to disfavor a large variety of the nonstandard (but inflation-based) models that have been proposed to improve the quality of fits to the CMB data and the consistency with other cosmological observables. Within standard inflationary models, our results combined with the COBE/Differential Microwave Radiometer data give best-fit values and 95 percent confidence limits for the baryon density, Omega (b)h(2)similar or equal to 0.033 +/- 0.013, and the total density, Omega =0.9(-0.16)(+0.18). The primordial spectrum slope (n(s)) and the optical depth to the last scattering surface (tau (c)) are found to be degenerate and to obey the relation n(s) similar or equal to (0.99 +/- 0.14) + 0.46tau (c), for tau (c) less than or equal to 0.5 (all at 95 percent confidence levels).

Stompor, R.; Abroe, M.; Ade, P.; Balbi, A.; Barbosa, D.; Bock,J.; Borrill, J.; Boscaleri, A.; de Bernardis, P.; Ferreira, P.G.; Hanany,S.; Hristov, V.; Jaffe, A.H.; Lee, A.T.; Pascale, E.; Rabii, B.; Richards, P.L.; Smoot, G.F.; Winant, C.D.; Wu, J.H.P.

2001-05-03T23:59:59.000Z

280

The Low-Resolution CCSM3  

Science Conference Proceedings (OSTI)

The low-resolution fully coupled configuration of the Community Climate System Model version 3 (CCSM3) is described and evaluated. In this most economical configuration, an ocean at nominal 3° resolution is coupled to an atmosphere model at T31 ...

Stephen G. Yeager; Christine A. Shields; William G. Large; James J. Hack

2006-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

High resolution scintillation detector with semiconductor readout  

DOE Patents (OSTI)

A novel high resolution scintillation detector array for use in radiation imaging such as high resolution Positron Emission Tomography (PET) which comprises one or more parallelepiped crystals with at least one long surface of each crystal being in intimate contact with a semiconductor photodetector such that photons generated within each crystal by gamma radiation passing therethrough is detected by the photodetector paired therewith.

Levin, Craig S. (Santa Monica, CA); Hoffman, Edward J. (Los Angeles, CA)

2000-01-01T23:59:59.000Z

282

Conflict Resolution Day | Department of Energy  

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

Conflict Resolution Day Conflict Resolution Day Conflict Resolution Day October 18, 2012 10:00AM EDT All events in the Department of Energy's Forrestal Main Auditorium, Germantown employees can watch a VTC broadcast in Germantown A-117 and Cloverleaf 2071. Conflict Resolution Day takes a look at mediation, conciliation, negotiation, arbitration, the ombudsman, and facilitation to resolve conflict in the workplace. Employees and contractors are invited to join for any/all of the following events: 10:00am - 10:30am Cookies, Coffee, and Conversation 10:30am - 11:30am Self-Mediation presentation 11:30am - 12:00pm De-Stressing in a Stressful Environment presentation 12:00pm - 1:00pm Informal Information Session 1:00pm - 2:00pm Ergonomics IL Creations Forrestal Cafetaria will be offering a Conflict Resolution Day

283

Resolute Marine Energy Inc | Open Energy Information  

Open Energy Info (EERE)

Resolute Marine Energy Inc Resolute Marine Energy Inc Jump to: navigation, search Name Resolute Marine Energy Inc Address 3 Post Office Square 3rd floor Place Massachusetts Zip 02109-3905 Country United States Sector Marine and Hydrokinetic Product Resolute is a wave-power technology developer operating in Massachusetts. Year founded 2007 Number of employees 12 Phone number 917-626-6790 Website http://www.resolutemarine.com References Resolute Marine Energy LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This company is listed in the Marine and Hydrokinetic Technology Database. This company is involved in the following MHK Projects: Ocean Trials Ver 2 SurgeWEC Ocean Testing 1 This company is involved in the following MHK Technologies: AirWEC SurgeWEC

284

Transportation Issues and Resolutions Compilation of Laboratory  

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

Transportation Issues and Resolutions Compilation of Laboratory Transportation Issues and Resolutions Compilation of Laboratory Transportation Work Package Reports Transportation Issues and Resolutions Compilation of Laboratory Transportation Work Package Reports The Transportation Team identified the retrievability and subcriticality safety functions to be of primary importance to the transportation of UNF after extended storage and to transportation of high burnup fuel. The tasks performed and described herein address issues related to retrievability and subcriticality; integrity of cladding (embrittled, high burnup cladding, loads applied to cladding during transport), criticality analyses of failed UNF within transport packages, moderator exclusion concepts, stabilization of cladding with canisters for criticality control;

285

Alternative Dispute Resolution Terms | Department of Energy  

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

Alternative Dispute Resolution Terms Alternative Dispute Resolution Terms Alternative Dispute Resolution Terms Dispute Systems Design Dispute systems design is a process for assisting an organization to develop a structure for handling a series of similar recurring or anticipated disputes (e.g., environmental enforcement cases or EEO complaints within a federal agency) more effectively. Facilitation Facilitation is a collaborative process in which a neutral seeks to assist a group of individuals or other parties to discuss constructively a number of complex, potentially controversial issues. The neutral in a facilitation process (the "facilitator") plays a less active role than a mediator and, unlike a mediator, does not see "resolution" of a conflict as a goal of his or her work.

286

3-Dimensional Imaging At Nanometer Resolutions  

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

3-Dimensional Imaging At Nanometer Resolutions 3-Dimensional Imaging At Nanometer Resolutions 3-Dimensional Imaging At Nanometer Resolutions An apparatus and method for enabling precise, 3-dimensional, photoactivation localization microscopy (PALM). Available for thumbnail of Feynman Center (505) 665-9090 Email 3-Dimensional Imaging At Nanometer Resolutions An apparatus and method for enabling precise, 3-dimensional, photoactivation localization microscopy (PALM) using selective, two-photon activation of fluorophores in a single z-slice of a sample in cooperation with time-gated imaging for reducing the background radiation from other image planes to levels suitable for single-molecule detection and spatial location, are described. U.S. Patent No.: 7,675,045 (DOE S-112,966) Patent Application Filing Date: October 9, 2008

287

Environmental Conflict Resolution | Department of Energy  

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

Environmental Environmental Conflict Resolution Environmental Conflict Resolution In November 2005, the Council on Environmental Quality (CEQ) and the Office of Management and Budget (OMB) jointly signed a memorandum directing Federal agencies to seek to increase the effective use of environmental conflict resolution (ECR) and collaborative problem solving (see http://www.whitehouse.gov/). The Department of Energy defines ECR as an ADR process which may include the use of a neutral third party, such as a mediator or facilitator to assist in the prevention or resolution of environmental disputes. ECR may also include the use of other collaborative processes (that may not necessarily use a neutral third party) to prevent or resolve environmental disputes. The memorandum also

288

A probabilistic model for associative anaphora resolution  

Science Conference Proceedings (OSTI)

This paper proposes a probabilistic model for associative anaphora resolution in Japanese. Associative anaphora is a type of bridging anaphora, in which the anaphor and its antecedent are not coreferent. Our model regards associative anaphora as a kind ...

Ryohei Sasano; Sadao Kurohashi

2009-08-01T23:59:59.000Z

289

Adopting ontologies for multisource identity resolution  

Science Conference Proceedings (OSTI)

Identity resolution aims at identifying the newly presented facts and linking them to their previous mentions. Our main hypothesis is that variations of one and the same fact can be recognised, duplications removed and their aggregation actually increases ...

Milena Yankova; Horacio Saggion; Hamish Cunningham

2008-10-01T23:59:59.000Z

290

Range resolution of unequal strength targets  

E-Print Network (OSTI)

This paper examines the problem of resolving targets whose amplitudes may differ. A common metric used for resolution that assumes targets of equal strength is modified for the subject scenario. An expression for range ...

Carlson, Blair D.

291

Sensitivity of Simulated Climate to Model Resolution  

Science Conference Proceedings (OSTI)

Dynamical measures of the climate (e.g., winds, eddy fluxes) simulated by a general circulation model are compared at different horizontal and vertical resolutions for the December, January, and February period. The simulations of the troposphere ...

Byron A. Boville

1991-05-01T23:59:59.000Z

292

NIST Lunar spectro-radiometer  

Science Conference Proceedings (OSTI)

... each of which is connected to a spectrograph covering a different ... to be approximately 0.5 % through visible atmospheric window bands and less ...

2013-04-11T23:59:59.000Z

293

High resolution fossil fuel combustion CO2 emission fluxes for...  

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

High resolution fossil fuel combustion CO2 emission fluxes for the United States Title High resolution fossil fuel combustion CO2 emission fluxes for the United States Publication...

294

Revised Continuing Appropriations Resolution, 2007, P.L. 110...  

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

Marketing Administration Other Agencies You are here Home Revised Continuing Appropriations Resolution, 2007, P.L. 110-5 Revised Continuing Appropriations Resolution, 2007,...

295

Observation of Lithium Ions at Atomic Resolution Using an ...  

Science Conference Proceedings (OSTI)

Presentation Title, Observation of Lithium Ions at Atomic Resolution Using an ... at atomic resolution in several important electrode materials for Li-ion batteries.

296

A remark on higher order RUE-resolution with EXTRUE  

E-Print Network (OSTI)

We show that a prominent counterexample for the completeness of first order RUE-resolution does not apply to the higher order RUE-resolution approach EXTRUE.

Benzmueller, Christoph

2009-01-01T23:59:59.000Z

297

High resolution electron crystallography of protein molecules  

Science Conference Proceedings (OSTI)

Electron diffraction data and high resolution images can now be used to obtain accurate, three-dimensional density maps of biological macromolecules. These density maps can be interpreted by building an atomic-resolution model of the structure into the experimental density. The Cowley-Moodie formalism of dynamical diffraction theory has been used to validate the use of kinematic diffraction theory, strictly the weak phase object approximation, in producing such 3-D density maps. Further improvements in the preparation of very flat specimens and in the retention of diffraction to a resolution of 0.2 nm or better could result in electron crystallography becoming as important a technique as x-ray crystallography currently is for the field of structural molecular biology.

Glaeser, R.M. [California Univ., Berkeley, CA (United States). Dept. of Molecular and Cell Biology]|[Lawrence Berkeley Lab., CA (United States); Downing, K.H. [Lawrence Berkeley Lab., CA (United States)

1993-06-01T23:59:59.000Z

298

CONSTRUCTING A WISE HIGH RESOLUTION GALAXY ATLAS  

Science Conference Proceedings (OSTI)

After eight months of continuous observations, the Wide-field Infrared Survey Explorer (WISE) mapped the entire sky at 3.4 {mu}m, 4.6 {mu}m, 12 {mu}m, and 22 {mu}m. We have begun a dedicated WISE High Resolution Galaxy Atlas project to fully characterize large, nearby galaxies and produce a legacy image atlas and source catalog. Here we summarize the deconvolution techniques used to significantly improve the spatial resolution of WISE imaging, specifically designed to study the internal anatomy of nearby galaxies. As a case study, we present results for the galaxy NGC 1566, comparing the WISE enhanced-resolution image processing to that of Spitzer, Galaxy Evolution Explorer, and ground-based imaging. This is the first paper in a two-part series; results for a larger sample of nearby galaxies are presented in the second paper.

Jarrett, T. H.; Masci, F.; Tsai, C. W.; Fowler, J. [Infrared Processing and Analysis Center (IPAC), California Institute of Technology, Pasadena, CA 91125 (United States); Petty, S.; Lake, S.; Wright, E. [Physics and Astronomy Department, University of California, Los Angeles, CA 90095 (United States); Cluver, M. [Australian Astronomical Observatory, P.O. Box 296, Epping, NSW 1710 (Australia); Assef, Roberto J.; Eisenhardt, P. [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Mail Stop 169-221, Pasadena, CA 91109 (United States); Benford, D. [NASA Goddard Space Flight Center, Code 665, Greenbelt, MD 20771 (United States); Blain, A. [Department of Physics and Astronomy, University of Leicester, LE1 7RH Leicester (United Kingdom); Bridge, C.; Neill, James D. [Department of Astronomy, California Institute of Technology, Pasadena, CA 91125 (United States); Donoso, E. [Spitzer Science Center, IPAC, California Institute of Technology, Pasadena, CA 91125 (United States); Koribalski, B. [CSIRO Astronomy and Space Science, Australia Telescope National Facility (ATNF), P.O. Box 76, Epping, NSW 1710 (Australia); Seibert, M. [Observatories of the Carnegie Insititution for Science, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Sheth, K. [NASA Postdoctoral Program Fellow. (United States); Stanford, S., E-mail: jarrett@ipac.caltech.edu [Department of Physics, University of California, One Shields Avenue, Davis, CA 95616 (United States)

2012-08-15T23:59:59.000Z

299

High resolution simulation of the South Asian monsoon using a variable resolution global climate model  

E-Print Network (OSTI)

High resolution simulation of the South Asian monsoon using a variable resolution global climate understand regional aspects of the South Asian monsoon rainfall distribution and the interactions between monsoon circulation and precipitation. For this purpose, two sets of ten member realizations are produced

Hourdin, Chez Frédéric

300

High resolution A/D conversion based on piecewise conversion at lower resolution  

SciTech Connect

Piecewise conversion of an analog input signal is performed utilizing a plurality of relatively lower bit resolution A/D conversions. The results of this piecewise conversion are interpreted to achieve a relatively higher bit resolution A/D conversion without sampling frequency penalty.

Terwilliger, Steve (Albuquerque, NM)

2012-06-05T23:59:59.000Z

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


301

RAPID DAMAGE ASSESSMENT FROM HIGH RESOLUTION IMAGERY  

SciTech Connect

Disaster impact modeling and analysis uses huge volumes of image data that are produced immediately following a natural or an anthropogenic disaster event. Rapid damage assessment is the key to time critical decision support in disaster management to better utilize available response resources and accelerate recovery and relief efforts. But exploiting huge volumes of high resolution image data for identifying damaged areas with robust consistency in near real time is a challenging task. In this paper, we present an automated image analysis technique to identify areas of structural damage from high resolution optical satellite data using features based on image content.

Vijayaraj, Veeraraghavan [ORNL; Bright, Eddie A [ORNL; Bhaduri, Budhendra L [ORNL

2008-01-01T23:59:59.000Z

302

A High Resolution Scale-of-four  

DOE R&D Accomplishments (OSTI)

A high resolution scale-of-four has been developed to be used in conjunction with the nuclear particle detection devices in applications where the counting rate is unusually high. Specifically, it is intended to precede the commercially available medium resolution scaling circuits and so decrease the resolving time of the counting system. The circuit will function reliably on continuously recurring pulses separated by less than 0.1 microseconds. It will resolve two pulses (occurring at a moderate repetition rate) which are spaced at 0.04 microseconds. A five-volt input signal is sufficient to actuate the device.

Fitch, V.

1949-08-25T23:59:59.000Z

303

Bootstrapping path-based pronoun resolution  

Science Conference Proceedings (OSTI)

We present an approach to pronoun resolution based on syntactic paths. Through a simple bootstrapping procedure, we learn the likelihood of coreference between a pronoun and a candidate noun based on the path in the parse tree between the two entities. ...

Shane Bergsma; Dekang Lin

2006-07-01T23:59:59.000Z

304

Apparent display resolution enhancement for moving images  

Science Conference Proceedings (OSTI)

Limited spatial resolution of current displays makes the depiction of very fine spatial details difficult. This work proposes a novel method applied to moving images that takes into account the human visual system and leads to an improved perception ... Keywords: eye tracking, image reconstruction, perception

Piotr Didyk; Elmar Eisemann; Tobias Ritschel; Karol Myszkowski; Hans-Peter Seidel

2010-07-01T23:59:59.000Z

305

Spatial Resolution of the Pressure Anemometer  

Science Conference Proceedings (OSTI)

One of the important characteristics of an anemometer is its spatial resolution. A three-dimensional generalization is given of a method to calculate the transfer function as a function of the wavenumber, devised by Kaimal et al. for a sonic ...

W. A. Oost; G. J. Komen

1983-12-01T23:59:59.000Z

306

The other high resolution post accelerator approach  

Science Conference Proceedings (OSTI)

There has been significant discussion in consideration of a high resolution mass separator followed by a RFQ and a linear accelerator as the basic format for IsoSpin Laboratory. There exists another strong possibility-namely a low-resolution mass separator coupled to a cyclotron. The major objection to this approach has been that the conversion from the +1 mass separator beam to a q/m beam of 1/4 to 1/3 is thought to be highly inefficient. Since we are in the fortunate position of having the two expensive components of this system available for tests (an on-line mass separator and an ECR source), we intend to couple these devices to actually measure these efficiencies and to test ideas for improving the efficiency. We present some specifics of this approach.

Moltz, D.M.; Tighe, R.J.; Rowe, M.W.; Ognibene, T.J.; Cerny, J.

1993-05-24T23:59:59.000Z

307

High resolution patterning of silica aerogels  

SciTech Connect

Three-dimensional metallic structures are fabricated with high spatial resolution in silica aerogels. In our method, silica hydrogels are prepared with a standard base-catalyzed route, and exchanged with an aqueous solution typically containing Ag{sup +} ions (1 M) and 2-propanol (0.2 M). The metal ions are reduced photolytically with a table-top ultraviolet lamp, or radiolytically, with a focused X-ray beam. We fabricated dots and lines as small as 30 x 70 {micro}m, protruding for several mm into the bulk of the materials. The hydrogels are eventually supercritically dried to yield aerogels, without any measurable change in the shape and spatial resolution of the lithographed structures. Transmission electron microscopy shows that illuminated regions are composed by Ag clusters with a size of several {micro}m, separated by thin layers of silica.

Bertino, M.F.; Hund, J.F.; Sosa, J.; Zhang, G.; Sotiriou-Leventis, C.; Leventis, N.; Tokuhiro, A.T.; Terry, J. (UMR-MUST); (IIT)

2008-10-30T23:59:59.000Z

308

High resolution x-ray microscope  

Science Conference Proceedings (OSTI)

The authors present x-ray images of grid meshes and biological material obtained using a microspot x-ray tube with a multilayer optic and a 92-element parabolic compound refractive lens (CRL) made of a plastic containing only hydrogen and carbon. Images obtained using this apparatus are compared with those using an area source with a spherical lens and a spherical lens with multilayer condenser. The authors found the best image quality using the multilayer condenser with a parabolic lens, compared to images with a spherical lens and without the multilayer optics. The resolution was measured using a 155-element parabolic CRL and a multilayer condenser with the microspot tube. The experiment demonstrates about 1.1 {mu}m resolution.

Gary, C. K.; Park, H.; Lombardo, L. W.; Piestrup, M. A.; Cremer, J. T.; Pantell, R. H.; Dudchik, Y. I. [Adelphi Technology, Inc. 981-B Industrial Road, San Carlos, California 94070 (United States); Department of Electrical Engineering, Stanford University, Stanford, California 94305 (United States); Institute of Applied Physics Problems, Kurchatova 7, Minsk 220064 (Belarus)

2007-04-30T23:59:59.000Z

309

ITER TCWS Conceptual Design Chit Resolution Report  

SciTech Connect

Design Chits resulted from the External Conceptual Design Review (CDR) held at Cadarache on July 21-23, 2009 (Reference [5.1.3]). Those Chits were categorized into 3 categories in accordance with the following rules: Category 1 - Chits to be resolved before proceeding with preliminary design; Category 2 - Chits to be resolved during preliminary design; and Category 3 - Chits already resolved or covered by higher category Chits such that no further action is required. Prior to the preliminary design, all the category 1 chits were resolved and the category chit 1 resolution report was approved (Reference [5.1.4]). However, as the design has been evolving, one of the category 1 chits needs to be re-addressed. The purpose of this report is to present the resolutions to one CDR Category 1 Chit (Cat 1 Chit No.5) and twenty-three CDR Category 2 Chits. The Category 2 Chit resolutions presented are listed in order from item number one to item number twenty-three.

Berry, Jan [ORNL

2012-02-01T23:59:59.000Z

310

Resolution and Polarization Distribution in Cryogenic DNP/MAS Experiments  

E-Print Network (OSTI)

This contribution addresses four potential misconceptions associated with high-resolution dynamic nuclear polarization/magic angle spinning (DNP/MAS) experiments. First, spectral resolution is not generally compromised at ...

Barnes, Alexander

311

Predicting Performance Impacts due to Resolution Changes in Parallel Simulations  

Science Conference Proceedings (OSTI)

Multi-resolution models are often used to accelerate simulation-based analysis without significantly impacting the fidelity of the simulations. We have developed a web-enabled, component-based, multi-resolution modeling and Time Warp synchronized parallel ...

Dhananjai M. Rao; Philip A. Wilsey

2008-10-01T23:59:59.000Z

312

Applied high resolution digital control for universal precision systems  

E-Print Network (OSTI)

This thesis describes the design and characterization of a high-resolution analog interface for dSPACE digital control systems and a high-resolution, high-speed data acquisition and control system. These designs are intended ...

Gawlik, Aaron John

2008-01-01T23:59:59.000Z

313

Documentation of high resolution solar resource assessment (10km...  

Open Energy Info (EERE)

resolution solar resource assessment for China provided by DLR. The high resolution solar data (10kmx10km) provide country maps of the annual and monthly sums of hourly global...

314

Documentation of high resolution solar resource assessment (10km...  

Open Energy Info (EERE)

resolution solar resource assessment for Nepal provided by DLR. The high resolution solar data (10kmx10km) provide country maps of the annual and monthly sums of hourly global...

315

Documentation of high resolution solar resource assessment (10km...  

Open Energy Info (EERE)

resolution solar resource assessment for Kenya provided by DLR. The high resolution solar data (10kmx10km) provide country maps of the annual and monthly sums of hourly global...

316

Documentation of high resolution solar resource assessment for...  

Open Energy Info (EERE)

resolution solar resource assessment for Ghana provided by DLR. The high resolution solar data (10kmx10km) provide country maps of the annual and monthly sums of hourly global...

317

High-resolution flurescence spectroscopy in immunoanalysis  

SciTech Connect

The work presented in this dissertation combines highly sensitive and selective fluorescence line-narrowing spectroscopy (FLNS) detection with various modes of immunoanalytical techniques. It has been shown that FLNS is capable of directly probing molecules immunocomplexed with antibodies, eliminating analytical ambiguities that may arise from interferences that accompany traditional immunochemical techniques. Moreover, the utilization of highly cross-reactive antibodies for highly specific analyte determination has been demonstrated. Finally, they demonstrate the first example of the spectral resolution of diastereomeric analytes based on their interaction with a cross-reactive antibody.

Grubor, Nenad M.

2005-05-01T23:59:59.000Z

318

Direct super-resolution and registration using raw CFA images  

Science Conference Proceedings (OSTI)

Super-resolution has been applied mainly to grayscale images, but producing a high-resolution color image using a single CCD sensor has not been investigated in detail until recently. This work aims at producing a high-resolution color image directly ...

Tomomasa Gotoh; Masatoshi Okutomi

2004-06-01T23:59:59.000Z

319

Layout impact of resolution enhancement techniques: impediment or opportunity?  

Science Conference Proceedings (OSTI)

This tutorial introduces the reader to the basic concepts of optical lithography, derives fundamental resolution limits, reviews the challenges facing future technology nodes, explains the principles of resolution enhancement techniques and their impact ... Keywords: design for manufacturability, lithography, radically restricted designs, resolution enhancement techniques

Lars W. Liebmann

2003-04-01T23:59:59.000Z

320

A process-driven tool to support online dispute resolution  

Science Conference Proceedings (OSTI)

This demonstration shows a prototype tool that projects an impression of how execution of a formally defined process will facilitate dispute resolution. Tool flexibility supports projecting the look and feel of a range of different processes, facilitating ... Keywords: dispute resolution, grievance mediation, online dispute resolution, participatory design, process, process technology, prototyping

Lori Clarke; Alan Gaitenby; Daniel Gyllstrom; Ethan Katsh; Matthew Marzilli; Leon J. Osterweil; Norman K. Sondheimer; Leah Wing; Alexander Wise; Daniel Rainey

2006-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

Unique microchannel plate process doubles MCPI resolution  

Science Conference Proceedings (OSTI)

Applying a dielectric layer to the output of a microchannel plate (MCP) has allowed the screen voltage of a sealed microchannel-plate intensifier tube (MCPI) to be raised to over 10 kV, producing a field strength of 36 kV/mm without any detectable field emission or breakdown of the MCP/screen gap. Tube resolution exceeded 16 lp/mm at 50% modulation. Breakdown is higher in a dielectric than in a vacuum. In a concept being patented by Gary Power, a few-{mu}m-thick layer of a dielectric was sputtered onto the output surface of an 18-mm MCP, which was incorporated into a tube under a contract for four tube starts. This process is applicable to any device incorporating a proximity-focused MCP and screen, including streak tubes and gated MCP x-ray imagers. Other improvements discussed include a patented use of a collimator for eliminating the electrons that are elastically scattered from the screen. This method also provides for further improvements in screen gap limited resolution to any desired degree by eliminating electrons with high transverse energy. This occurs at the expense of output brightness, which can be recovered through an appropriate increase in screen voltage.

Thomas, S.; Power, G.

1994-08-22T23:59:59.000Z

322

High-Resolution Scintimammography: A Pilot Study  

Science Conference Proceedings (OSTI)

This study evaluated a novel high-resolution breast-specific gamma camera (HRBGC) for the detection of suggestive breast lesions. Methods: Fifty patients (with 58 breast lesions) for whom a scintimammogram was clinically indicated were prospectively evaluated with a general-purpose gamma camera and a novel HRBGC prototype. The results of conventional and high-resolution nuclear studies were prospectively classified as negative (normal or benign) or positive (suggestive or malignant) by 2 radiologists who were unaware of the mammographic and histologic results. All of the included lesions were confirmed by pathology. Results: There were 30 benign and 28 malignant lesions. The sensitivity for detection of breast cancer was 64.3% (18/28) with the conventional camera and 78.6% (22/28) with the HRBGC. The specificity with both systems was 93.3% (28/30). For the 18 nonpalpable lesions, sensitivity was 55.5% (10/18) and 72.2% (13/18) with the general-purpose camera and the HRBGC, respectively. For lesions 1 cm, 7 of 15 were detected with the general-purpose camera and 10 of 15 with the HRBGC. Four lesions (median size, 8.5 mm) were detected only with the HRBGC and were missed by the conventional camera. Conclusion: Evaluation of indeterminate breast lesions with an HRBGC results in improved sensitivity for the detection of cancer, with greater improvement shown for nonpalpable and 1-cm lesions.

Rachel F. Brem; Joelle M. Schoonjans; Douglas A. Kieper; Stan Majewski; Steven Goodman; Cahid Civelek

2002-07-01T23:59:59.000Z

323

High resolution simulation of the South Asian monsoon using a variable4 resolution global climate model5  

E-Print Network (OSTI)

1 1 2 3 High resolution simulation of the South Asian monsoon using a variable4 resolution global of the South Asian monsoon rainfall distribution and the interactions27 between monsoon circulation of resolution on the overall quality of the simulated regional33 monsoon fields. It is found that the monsoon

Dufresne, Jean-Louis

324

EMatch: Discovery of High Resolution Structural Homologues of Protein Domains in Intermediate Resolution Cryo-EM Maps  

Science Conference Proceedings (OSTI)

Cryo-EM has become an increasingly powerful technique for elucidating the structure, dynamics, and function of large flexible macromolecule assemblies that cannot be determined at atomic resolution. However, due to the relatively low resolution of cryo-EM ... Keywords: Structural bioinformatics, intermediate resolution cryo-EM maps, 3D alignment of secondary structures, macromolecular assemblies, cyclic symmetry.

Keren Lasker; Oranit Dror; Maxim Shatsky; Ruth Nussinov; Haim J. Wolfson

2007-01-01T23:59:59.000Z

325

The Advection of High-Resolution Tracers by Low-Resolution Winds  

Science Conference Proceedings (OSTI)

The usefulness of any simulation of atmospheric tracers using low-resolution winds relies on both the dominance of large spatial scales in the strain and time dependence that results in a cascade in tracer scales. Here, a quantitative study on ...

John Methven; Brian Hoskins

1999-09-01T23:59:59.000Z

326

Ultra-high resolution computed tomography imaging  

DOE Patents (OSTI)

A method for ultra-high resolution computed tomography imaging, comprising the steps of: focusing a high energy particle beam, for example x-rays or gamma-rays, onto a target object; acquiring a 2-dimensional projection data set representative of the target object; generating a corrected projection data set by applying a deconvolution algorithm, having an experimentally determined a transfer function, to the 2-dimensional data set; storing the corrected projection data set; incrementally rotating the target object through an angle of approximately 180.degree., and after each the incremental rotation, repeating the radiating, acquiring, generating and storing steps; and, after the rotating step, applying a cone-beam algorithm, for example a modified tomographic reconstruction algorithm, to the corrected projection data sets to generate a 3-dimensional image. The size of the spot focus of the beam is reduced to not greater than approximately 1 micron, and even to not greater than approximately 0.5 microns.

Paulus, Michael J. (Knoxville, TN); Sari-Sarraf, Hamed (Knoxville, TN); Tobin, Jr., Kenneth William (Harriman, TN); Gleason, Shaun S. (Knoxville, TN); Thomas, Jr., Clarence E. (Knoxville, TN)

2002-01-01T23:59:59.000Z

327

ON THE IMPACT OF SUPER RESOLUTION WSR-88D DOPPLER RADAR DATA ASSIMILATION ON HIGH RESOLUTION NUMERICAL MODEL FORECASTS  

SciTech Connect

Assimilation of radar velocity and precipitation fields into high-resolution model simulations can improve precipitation forecasts with decreased 'spin-up' time and improve short-term simulation of boundary layer winds (Benjamin, 2004 & 2007; Xiao, 2008) which is critical to improving plume transport forecasts. Accurate description of wind and turbulence fields is essential to useful atmospheric transport and dispersion results, and any improvement in the accuracy of these fields will make consequence assessment more valuable during both routine operation as well as potential emergency situations. During 2008, the United States National Weather Service (NWS) radars implemented a significant upgrade which increased the real-time level II data resolution to 8 times their previous 'legacy' resolution, from 1 km range gate and 1.0 degree azimuthal resolution to 'super resolution' 250 m range gate and 0.5 degree azimuthal resolution (Fig 1). These radar observations provide reflectivity, velocity and returned power spectra measurements at a range of up to 300 km (460 km for reflectivity) at a frequency of 4-5 minutes and yield up to 13.5 million point observations per level in super-resolution mode. The migration of National Weather Service (NWS) WSR-88D radars to super resolution is expected to improve warning lead times by detecting small scale features sooner with increased reliability; however, current operational mesoscale model domains utilize grid spacing several times larger than the legacy data resolution, and therefore the added resolution of radar data is not fully exploited. The assimilation of super resolution reflectivity and velocity data into high resolution numerical weather model forecasts where grid spacing is comparable to the radar data resolution is investigated here to determine the impact of the improved data resolution on model predictions.

Chiswell, S

2009-01-11T23:59:59.000Z

328

Exposure characteristics of high?resolution negative resists  

Science Conference Proceedings (OSTI)

Positive and negative resist systems are both essential in the microfabrication of experimental devices. While numerous positive resists have been shown to have high?resolution

Kaolin Grace Chiong; Shalom Wind; David Seeger

1990-01-01T23:59:59.000Z

329

Application Of High-Resolution Thermal Infrared Sensors For Geothermal...  

Open Energy Info (EERE)

Of High-Resolution Thermal Infrared Sensors For Geothermal Exploration At The Salton Sea, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference...

330

High Resolution Solar Energy Resource Assessment within the UNEP...  

Open Energy Info (EERE)

High Resolution Solar Energy Resource Assessment within the UNEP Project SWERA

(Abstract):  To expand the world wide use of renewable energy a consistent,...

331

Ex-Situ High Resolution NMR and MRI - Lawrence Berkeley ...  

Alexander Pines and colleagues have opened the way to high resolution ex situ nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI).

332

Atomic-resolution Chemical Analysis by Aberration-corrected ...  

Science Conference Proceedings (OSTI)

In fact, it is possible to analyze materials in the atomic resolution since both the ... State-of-the-art strain Microscopy for Ferroelectrics and Battery Materials.

333

Minimally invasive diagnostic imaging using high resolution Optical Coherence Tomography  

E-Print Network (OSTI)

Advances in medical imaging have given researchers unprecedented capabilities to visualize, characterize and understand biological systems. Optical Coherence Tomography (OCT) is a high speed, high resolution imaging technique ...

Herz, Paul Richard, 1972-

2004-01-01T23:59:59.000Z

334

Merging High Resolution Geophysical and Geochemical Surveys to...  

Open Energy Info (EERE)

This program will combine detailed gravity, high resolution aeromagnetic, and LIDAR data, all of which will be combined for structural modeling, with hyperspectral data,...

335

Cloud properties derived from the High Spectral Resolution Lidar...  

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

Cloud properties derived from the High Spectral Resolution Lidar during MPACE Eloranta, Edwin University of Wisconsin Category: Field Campaigns Cloud properties were derived from...

336

High Resolution River Hydraulic and Water Quality Characterization Using Rapidly Deployable Networked Infomechanical Systems (NIMS RD)  

E-Print Network (OSTI)

High Resolution River Hydraulic and Water Quality1594. High Resolution River Hydraulic and Water Qualityobserving spatiotemporal hydraulic and chemical properties

Thomas C. Harmon; Richard F. Ambrose; Robert M. Gilbert; Jason C. Fisher; Michael Stealey; William J. Kaiser

2006-01-01T23:59:59.000Z

337

Estimation of Land Surface Heat Fluxes over the Tibetan Plateau Using GMS Data  

Science Conference Proceedings (OSTI)

A Surface Energy Balance System (SEBS) originally developed for the NOAA Advanced Very High Resolution Radiometer was applied to Geostationary Meteorological Satellite (GMS)-5 Visible/Infrared Spin-Scan Radiometer data that were supplemented with ...

Yuichiro Oku; Hirohiko Ishikawa; Zhongbo Su

2007-02-01T23:59:59.000Z

338

Note: Finding a tree structure in a resolution proof is NP-complete  

Science Conference Proceedings (OSTI)

The resolution tree problem consists of deciding whether a given sequence-like resolution refutation admits a tree structure. This paper shows the NP-completeness of both the resolution tree problem and a natural generalization of the resolution tree ... Keywords: NP-completeness, Resolution, Tree-like resolution

Jan Hoffmann

2009-05-01T23:59:59.000Z

339

Iterative Collision Resolution in Wireless Networks  

E-Print Network (OSTI)

With the growing popularity of smart phones and tablets, development of multimedia applications is on the rise. Speedy transmission of this massive amount information is already pushing the limits of the capacity of wireless networks, and in upcoming years wireless data traffic is projected to continue increasing dramatically. Advances in wireless network throughput are necessary to keep up with society’s data demands. In an uncoordinated wireless communications system, transmissions collide and interfere as multiple users transmit data to a central receiver. Slotted-ALOHA, the conventional method that schedules user transmissions, has only 37% throughput efficiency. However, theoretical results in recent studies suggest that scheduling transmissions over a number of random, fixed timeslots and employing iterative collision resolution techniques achieves optimal throughput efficiency of approximately 100%. This research considers how real-world conditions affect these theoretical results. A MATLAB model was developed create random graphs, representing users transmitting packets over such timeslots, and the packets were resolved by this method. This model was simulated extensively, representing networks of up to 10,000 users over 10,000 to 15,000 timeslots, and the number of packets resolved in each iteration was measured. These simulations have generated empirical data that backs up the theoretical claim. The distribution of the number of packets resolved also led to modifications of the current model to increase the percentage of packets resolved in each iteration. Furthermore, by investigating low density parity check coding techniques, other modifications to the current model can optimize the throughput over several consecutive transmissions where unresolved packets are resent with higher probability of recovery. These results demonstrate the potential of this method in handling uncoordinated transmissions in communications systems, even in the presence of finite conditions. This suggests that this method could eventually be employed in actual wireless systems.

Stuckman, Katherine Christine

2013-05-01T23:59:59.000Z

340

Cyclone Tracking in Different Spatial and Temporal Resolutions  

Science Conference Proceedings (OSTI)

The quality of cyclone tracks associated with model output of various resolutions is determined using a high-resolution dataset (1.125° × 1.125°, 2 h) mapped to different spatial (triangular truncations, T21, T42, T63, T84) and temporal ...

R. Blender; M. Schubert

2000-02-01T23:59:59.000Z

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


341

Intercomparison of High-Resolution Precipitation Products over Northwest Europe  

Science Conference Proceedings (OSTI)

Satellite-derived high-resolution precipitation products (HRPP) have been developed to address the needs of the user community and are now available with 0.25° × 0.25° (or less) subdaily resolutions. This paper evaluates a number of commonly ...

C. Kidd; P. Bauer; J. Turk; G. J. Huffman; R. Joyce; K.-L. Hsu; D. Braithwaite

2012-02-01T23:59:59.000Z

342

Fast high-resolution appearance editing using superimposed projections  

Science Conference Proceedings (OSTI)

We present a system that superimposes multiple projections onto an object of arbitrary shape and color to produce high-resolution appearance changes. Our system produces appearances at an improved resolution compared to prior works and can change appearances ... Keywords: Appearance editing, compensation, light transport, multi-projector, optimization

Daniel G. Aliaga; Yu Hong Yeung; Alvin Law; Behzad Sajadi; Aditi Majumder

2012-04-01T23:59:59.000Z

343

Does increasing model stratospheric resolution improve extended range forecast skill?  

E-Print Network (OSTI)

Does increasing model stratospheric resolution improve extended range forecast skill? Greg Roff,1 forecast skill at high Southern latitudes is explored. Ensemble forecasts are made for two model configurations that differ only in vertical resolution above 100 hPa. An ensemble of twelve 30day forecasts

344

High Resolution Aerosol Modeling: Decadal Changes in Radiative Forcing  

Science Conference Proceedings (OSTI)

The Atmospheric Science Division of LLNL has performed high-resolution calculations of direct sulfate forcing using a DOE-provided computer resource at NERSC. We integrated our global chemistry-aerosol model (IMPACT) with the LLNL high-resolution global climate model (horizontal resolution as high as 100 km) to examine the temporal evolution of sulfate forcing since 1950. We note that all previous assessments of sulfate forcing reported in IPCC (2001) were based on global models with coarse spatial resolutions ({approx} 300 km or even coarser). However, the short lifetime of aerosols ({approx} days) results in large spatial and temporal variations of radiative forcing by sulfate. As a result, global climate models with coarse resolutions do not accurately simulate sulfate forcing on regional scales. It requires much finer spatial resolutions in order to address the effects of regional anthropogenic SO{sub 2} emissions on the global atmosphere as well as the effects of long-range transport of sulfate aerosols on the regional climate forcing. By taking advantage of the tera-scale computer resources at NERSC, we simulated the historic direct sulfate forcing at much finer spatial resolutions than ever attempted before. Furthermore, we performed high-resolution chemistry simulations and saved monthly averaged oxidant fields, which will be used in subsequent simulations of sulfate aerosol formation and their radiative impact.

Bergmann, D J; Chuang, C C; Govindasamy, B; Cameron-Smith, P J; Rotman, D A

2005-02-01T23:59:59.000Z

345

A low power, variable resolution two-step flash ADC  

Science Conference Proceedings (OSTI)

In this paper, a new low power and configurable resolution two step flash ADC is proposed. Comparators of conventional flash ADC are replaced with CMOS inverters whose threshold can be varied dynamically. A novel peak-detector circuit is employed to ... Keywords: low power, two-step flash ADC, variable resolution

Mahesh Kumar Adimulam; Krishna Kumar Movva; Sreehari Veeramachaneni; N. Moorthy Muthukrishnan; M. B. Srinivas

2010-05-01T23:59:59.000Z

346

Technologies Provide High-Resolution Subsurface Imaging of Vadose Zone  

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

Technologies Provide High-Resolution Subsurface Imaging of Vadose Technologies Provide High-Resolution Subsurface Imaging of Vadose Zone Contamination at Hanford Site Technologies Provide High-Resolution Subsurface Imaging of Vadose Zone Contamination at Hanford Site May 17, 2012 - 12:00pm Addthis Shown here are high-resolution, three-dimensional ERT images of contaminant distribution Shown here are high-resolution, three-dimensional ERT images of contaminant distribution RICHLAND, Wash. - Cold War waste disposal practices resulted in both planned and unplanned releases of large amounts of radionuclide and heavy metal contamination into the subsurface throughout the DOE complex. Characterizing the distribution of the resulting environmental contamination remains one of the single most significant challenges limiting subsurface remediation and closure, particularly for the

347

Inverse Kriging to Enhance Spatial Resolution of Imagery  

Science Conference Proceedings (OSTI)

We describe a unique approach to image resolution enhancement, inverse kriging (IK), which takes advantage of the spatial relationship between high- and low-resolution images within an area of overlap. Once established, this mathematical relationship then can be applied across the entire low-resolution image to significantly sharpen the image. The mathematical relationship uses the spatial correlations within the low-resolution image and between the low and high spatial-resolution imagery. Two of the most important requirements of the technique are that the images be co-registered well within the resolution of the larger pixels and that the spatial structure of the training area (where the spatial correlation statistics are compared) is similar to the structure of the remaining image area where it will be applied. Testing was performed using same-sensor and multi-sensor imagery. We show results that indicate that the method does improve the low spatial-resolution imagery. The selection of a training area spatial structure similar to the area being processed is important, as areas with different spatial structure (e.g., vegetation versus buildings and roads) will produce poor results. Comparisons with bilinear interpolation demonstrate that IK could be used as an improved interpolation tool, for example, in the image-registration process.

Petrie, Gregg M. (BATTELLE (PACIFIC NW LAB)); Heasler, Patrick G. (BATTELLE (PACIFIC NW LAB)); Perry, Eileen M. (BATTELLE (PACIFIC NW LAB)); Thompson, Sandra E. (BATTELLE (PACIFIC NW LAB)); Daly, Don S. (BATTELLE (PACIFIC NW LAB))

2002-12-15T23:59:59.000Z

348

Bayesian Hierarchical Model for Combining Two-resolution Metrology Data  

E-Print Network (OSTI)

This dissertation presents a Bayesian hierarchical model to combine two-resolution metrology data for inspecting the geometric quality of manufactured parts. The high- resolution data points are scarce, and thus scatter over the surface being measured, while the low-resolution data are pervasive, but less accurate or less precise. Combining the two datasets could supposedly make a better prediction of the geometric surface of a manufactured part than using a single dataset. One challenge in combining the metrology datasets is the misalignment which exists between the low- and high-resolution data points. This dissertation attempts to provide a Bayesian hierarchical model that can handle such misaligned datasets, and includes the following components: (a) a Gaussian process for modeling metrology data at the low-resolution level; (b) a heuristic matching and alignment method that produces a pool of candidate matches and transformations between the two datasets; (c) a linkage model, conditioned on a given match and its associated transformation, that connects a high-resolution data point to a set of low-resolution data points in its neighborhood and makes a combined prediction; and finally (d) Bayesian model averaging of the predictive models in (c) over the pool of candidate matches found in (b). This Bayesian model averaging procedure assigns weights to different matches according to how much they support the observed data, and then produces the final combined prediction of the surface based on the data of both resolutions. The proposed method improves upon the methods of using a single dataset as well as a combined prediction without addressing the misalignment problem. This dissertation demonstrates the improvements over alternative methods using both simulated data and the datasets from a milled sine-wave part, measured by two coordinate measuring machines of different resolutions, respectively.

Xia, Haifeng

2008-12-01T23:59:59.000Z

349

Environmental Conflict Resolution Third Annual Report January 2009  

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

Third Annual Report Third Annual Report January 2009 U.S. Department of Energy EXECUTIVE SUMMARY The Department of Energy (DOE or the Department) defines environmental conflict resolution (ECR) as the use of any collaborative process to prevent or resolve environmental conflicts, including but not limited to those processes involving the use of third-party neutrals. This definition is consistent with that provided in the Administration's 2005 Memorandum on Environmental Conflict Resolution which acknowledged the value of all types of dispute resolution and collaborative problem solving. Collaborative approaches to avoiding or resolving environmental conflicts have been used by DOE sites prior to the issuance of the ECR memorandum and continue to be

350

High intrinsic energy resolution photon number resolving detectors  

E-Print Network (OSTI)

Transition Edge Sensors (TESs) are characterized by the intrinsic figure of merit to resolve both the energy and the statistical distribution of the incident photons. These properties lead TES devices to become the best single photon detector for quantum technology experiments. For a TES based on titanium and gold has been reached, at telecommunication wavelength, an unprecedented intrinsic energy resolution (0.113 eV). The uncertainties analysis of both energy resolution and photon state assignment has been discussed. The thermal properties of the superconductive device have been studied by fitting the bias curve to evaluate theoretical limit of the energy resolution.

L. Lolli; E. Taralli; C. Portesi; E. Monticone; M. Rajteri

2013-06-23T23:59:59.000Z

351

Instrument Series: Spectroscopy and Diffraction High Spatial Resolution  

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

High Spatial Resolution High Spatial Resolution Secondary Ion Mass Spectrometry (NanoSIMS) EMSL's novel, new-generation ion microprobe extends high spatial resolution secondary ion mass spectrometry (NanoSIMS) analysis to extremely small areas (down to 50 nm) and volumes while maintaining high sensitivity (e.g., ppm in element imaging) at high mass resolution. NanoSIMS can measure up to seven ions in parallel, offering perfect isotopic ratio results from the same small volume for perfect image superimposition. NanoSIMS can be used for enhanced imaging of cellular structures; simultaneous imaging of elements/isotopes on minerals and soft surfaces at the nanoscale; and imaging elements and isotopes of aerosols, nanoparticles, and organic and inorganic surfaces. Research Applications

352

Resolution Requirements for the Simulation of Deep Moist Convection  

Science Conference Proceedings (OSTI)

The spatial resolution appropriate for the simulation of deep moist convection is addressed from a turbulence perspective. To provide a clear theoretical framework for the problem, techniques for simulating turbulent flows are reviewed, and the ...

George H. Bryan; John C. Wyngaard; J. Michael Fritsch

2003-10-01T23:59:59.000Z

353

Lasers, Electron Beams and New Years Resolutions | Department of Energy  

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

Lasers, Electron Beams and New Years Resolutions Lasers, Electron Beams and New Years Resolutions Lasers, Electron Beams and New Years Resolutions March 2, 2011 - 3:43pm Addthis Charles Rousseaux Charles Rousseaux Senior Writer, Office of Science What are the key facts? The electron beam that powers Jefferson Lab's Free-Electron Laser pumped out a record power input of 500 kilvolts using an innovative energy-recovery system that amplifies energy with far less power. A sufficiently powerful laser could make an effective defensive weapon, as well as accurate detection and tracking. The few folks still keeping their New Year's resolutions to work out might be the first to appreciate the recent record-breaking lift by the Energy Department's Jefferson Lab. Take a steel dumbbell. Hoist it up - lift with your legs! - onto a stand. Then add another ...and another

354

Photon Sciences | Beamlines | SRX: Submicron Resolution X-ray Spectroscopy  

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

SRX: Submicron Resolution X-ray Spectroscopy SRX: Submicron Resolution X-ray Spectroscopy Poster | Fact Sheet | Preliminary Design Report Scientific Scope Scientific communities such as environmental sciences, life sciences, and material sciences have identified the need to develop analytical resources to advance the understanding of complex natural and engineered systems that are heterogeneous on the micron to nanometer scale. These needs for high intensity x-ray nanoprobes resulted in the commitment of the NSLS-II Project to build the Submicron Resolution X-ray (SRX) Spectroscopy beamline showing a unique combination of high spectral resolution over a very broad energy range and very high beam intensity in a sub-micrometer spot. NSLS-II will provide one of the best sources in the world for such an instrument.

355

High Resolution Imaging Science Experiment | Open Energy Information  

Open Energy Info (EERE)

form form View 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 with form History Facebook icon Twitter icon » High Resolution Imaging Science Experiment Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: High Resolution Imaging Science Experiment Author University of Arizona Published Publisher Not Provided, 2007 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for High Resolution Imaging Science Experiment Citation University of Arizona. High Resolution Imaging Science Experiment [Internet]. 2007. [cited 2013/09/27]. Available from: http://hirise.lpl.arizona.edu/HiBlog/tag/wavelength/ Retrieved from

356

High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone  

Open Energy Info (EERE)

High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone National Park Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone National Park Details Activities (1) Areas (1) Regions (0) Abstract: High-resolution aeromagnetic data acquired over Yellowstone National Park (YNP) show contrasting patterns reflecting differences in rock composition, types and degree of alteration, and crustal structures that mirror the variable geology of the Yellowstone Plateau. The older, Eocene, Absaroka Volcanic Supergroup, a series of mostly altered, andesitic volcanic and volcaniclastic rocks partially exposed in mountains on the eastern margin of YNP, produces high-amplitude, positive magnetic

357

Imaging Lithium Atoms at Sub-Angstrom Resolution  

E-Print Network (OSTI)

110] orientation for LiCoO 2 without lithium atoms ( upper)and with lithium atoms (lower). Images are simulated at 0.9ÅHorn LBNL-56646 resolution of lithium ions in LiCoO 2 . Fall

O'Keefe, Michael A.; Shao-Horn, Yang

2005-01-01T23:59:59.000Z

358

Does Increasing Horizontal Resolution Produce More Skillful Forecasts?  

Science Conference Proceedings (OSTI)

This paper examines the impacts of increasing horizontal resolution on the performance of mesoscale numerical weather prediction models. A review of previous studies suggests that decreasing grid spacing to approximately 10 km orless generally ...

Clifford F. Mass; David Ovens; Ken Westrick; Brian A. Colle

2002-03-01T23:59:59.000Z

359

High Resolution Forward And Inverse Earthquake Modeling on Terascale Computers  

Science Conference Proceedings (OSTI)

For earthquake simulations to play an important role in the reduction of seismic risk, they must be capable of high resolution and high fidelity. We have developed algorithms and tools for earthquake simulation based on multiresolution hexahedral meshes. ...

Vokan Akcelik; Jacobo Bielak; George Biros; Ioannis Epanomeritakis; Antonio Fernandez; Omar Ghattas; Eui Joong Kim; Julio Lopez; David O'Hallaron; Tiankai Tu; John Urbanic

2003-11-01T23:59:59.000Z

360

Combating terrorism insurgency resolution software: a research note  

Science Conference Proceedings (OSTI)

This is a research note to propose the development of a combating terrorism (CbT) insurgency resolution software that would operationalize and visualize all the processes involved in resolving terrorist-type insurgencies, including metrics for measures ...

Joshua Sinai

2006-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

The New England High-Resolution Temperature Program  

Science Conference Proceedings (OSTI)

The New England High-Resolution Temperature Program seeks to improve the accuracy of summertime 2-m temperature and dewpoint temperature forecasts in the New England region through a collaborative effort between the research and operational ...

David J. Stensrud; Nusrat Yussouf; Michael E. Baldwin; Jeffery T. McQueen; Jun Du; Binbin Zhou; Brad Ferrier; Geoffrey Manikin; F. Martin Ralph; James M. Wilczak; Allen B. White; Irina Djlalova; Jian-Wen Bao; Robert J. Zamora; Stanley G. Benjamin; Patricia A. Miller; Tracy Lorraine Smith; Tanya Smirnova; Michael F. Barth

2006-04-01T23:59:59.000Z

362

Entrainment in Cumulus Clouds: What Resolution is Cloud-Resolving?  

Science Conference Proceedings (OSTI)

Systematic numerical experiments were conducted to determine the spatial resolution required to resolve a moist thermal show convergence at a scale proportional to the smaller of the initial thermal diameter D0 and a buoyancy length scale Lbuoy. ...

George C. Craig; Andreas Dörnbrack

2008-12-01T23:59:59.000Z

363

High-Resolution Aeromagnetic Survey to Image Shallow Faults,...  

Open Energy Info (EERE)

Number 02-384 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley...

364

High-Resolution Satellite Imagery for Mesoscale Meteorological Studies  

Science Conference Proceedings (OSTI)

In this article high-resolution satellite imagery from a variety of meteorological and environmental satellites is compared. Digital datasets from Geostationary Operational Environmental Satellite (GOES), National Oceanic and Atmospheric ...

David B. Johnson; Pierre Flament; Robert L. Bernstein

1994-01-01T23:59:59.000Z

365

Performance evaluation and optimization of nested high resolution weather simulations  

Science Conference Proceedings (OSTI)

Weather models with high spatial and temporal resolutions are required for accurate prediction of meso-micro scale weather phenomena. Using these models for operational purposes requires forecasts with sufficient lead time, which in turn calls for large ...

Preeti Malakar; Vaibhav Saxena; Thomas George; Rashmi Mittal; Sameer Kumar; Abdul Ghani Naim; Saiful Azmi Bin Hj Husain

2012-08-01T23:59:59.000Z

366

A Radar Simulator for High-Resolution Nonhydrostatic Models  

Science Conference Proceedings (OSTI)

A full radar simulator for high-resolution (1–5 km) nonhydrostatic models has been developed within the research nonhydrostatic mesoscale atmospheric (Meso-NH) model. This simulator is made up of building blocks, each of which describes a ...

Olivier Caumont; Véronique Ducrocq; Guy Delrieu; Marielle Gosset; Jean-Pierre Pinty; Jacques Parent du Châtelet; Hervé Andrieu; Yvon Lemaître; Georges Scialom

2006-08-01T23:59:59.000Z

367

A Global Numerical Weather Prediction Model with Variable Resolution  

Science Conference Proceedings (OSTI)

A conformal transformation suggested by F. Schmidt is followed to implement a global spectral model with variable resolution. A conformal mapping is defined from a physical sphere (like the earth) to a transformed (computational) sphere. The ...

Vivek Hardiker

1997-01-01T23:59:59.000Z

368

Achieving sub-10-nm resolution using scanning electron beam lithography  

E-Print Network (OSTI)

Achieving the highest possible resolution using scanning-electron-beam lithography (SEBL) has become an increasingly urgent problem in recent years, as advances in various nanotechnology applications have driven demand for ...

Cord, Bryan M. (Bryan Michael), 1980-

2009-01-01T23:59:59.000Z

369

Compact high resolution isobar separator for study of exotic...  

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

Compact high resolution isobar separator for study of exotic decays A. Piechaczek 1 , V. Shchepunov 1 , H. K. Carter 1 J. C. Batchelder 1 , E. F. Zganjar 2 1 UNIRIB, Oak Ridge...

370

Higher Resolution in an Operational Ensemble Kalman Filter  

Science Conference Proceedings (OSTI)

Recently, the computing facilities available to the Meteorological Service of Canada were significantly upgraded. This provided an opportunity to improve the resolution of the global Ensemble Kalman Filter (EnKF) and the medium-range Global ...

P. L. Houtekamer; Xingxiu Deng; Herschel L. Mitchell; Seung-Jong Baek; Normand Gagnon

371

High-resolution Urban Image Classification Using Extended Features  

SciTech Connect

High-resolution image classification poses several challenges because the typical object size is much larger than the pixel resolution. Any given pixel (spectral features at that location) by itself is not a good indicator of the object it belongs to without looking at the broader spatial footprint. Therefore most modern machine learning approaches that are based on per-pixel spectral features are not very effective in high- resolution urban image classification. One way to overcome this problem is to extract features that exploit spatial contextual information. In this study, we evaluated several features in- cluding edge density, texture, and morphology. Several machine learning schemes were tested on the features extracted from a very high-resolution remote sensing image and results were presented.

Vatsavai, Raju [ORNL

2011-01-01T23:59:59.000Z

372

GHIS—The GOES High-Resolution Interferometer Sounder  

Science Conference Proceedings (OSTI)

A high spectral resolution interferometer sounder (GHIS) has been designed for flight on future geostationary meteorological satellites. It incorporates the measurement principles of an aircraft prototype instrument, which has demonstrated the ...

W. L. Smith; H. E. Revercomb; H. B. Howell; H-L. Huang; R. O. Knuteson; E. W. Koenig; D. D. LaPorte; S. Silverman; L. A. Sromovsky; H. M. Woolf

1990-12-01T23:59:59.000Z

373

Vertical Resolution and Accuracy of Atmospheric Infrared Sounding Spectrometers  

Science Conference Proceedings (OSTI)

A theoretical analysis is performed to evaluate the accuracy and vertical resolution of atmospheric profiles obtained with the HIRS/2, GOES I/M, and HIS instruments. In addition, a linear simultaneous retrieval algorithm is used with aircraft ...

Hung-Lung Huang; William L. Smith; Harold M. Woolf

1992-03-01T23:59:59.000Z

374

A framework for multi-resolution modeling of sustainable manufacturing  

Science Conference Proceedings (OSTI)

This paper proposes a multi-resolution framework for application of system dynamics modeling to sustainable manufacturing. Sustainable manufacturing involves interaction of four complex systems namely manufacturing, environmental, financial, and social ...

Sanjay Jain; Deogratias Kibira

2010-12-01T23:59:59.000Z

375

Documentation of high resolution solar resource assessment (10km...  

Open Energy Info (EERE)

solar resource assessment for Ethiopia provided by DLR. The high resolution solar data (10kmx10km) provide country maps of the annual and monthly sums of hourly global...

376

Documentation of high resolution solar resource assessment for...  

Open Energy Info (EERE)

solar resource assessment for Sri Lanka provided by DLR. The high resolution solar data (10kmx10km) provide country maps of the annual and monthly sums of hourly global...

377

Design and enhanced evaluation of a robust anaphor resolution algorithm  

Science Conference Proceedings (OSTI)

Syntactic coindexing restrictions are by now known to be of central importance to practical anaphor resolution approaches. Since, in particular due to structural ambiguity, the assumption of the availability of a unique syntactic reading proves to be ...

Roland Stuckardt

2001-12-01T23:59:59.000Z

378

U.N. Security Council Resolution 1540: Taking Stock  

SciTech Connect

More than two years have passed since the United Nations (U.N.) Security Council unanimously passed Resolution 1540. This seminal measure requires all U.N. Member States to enact and enforce “effective measures to establish domestic controls to prevent the proliferation of nuclear, chemical, biological weapons and their means of delivery.” Has this Resolution been successful? Did the 1540 Committee established by the Resolution fulfill its mandate? What does the future hold for Resolution 1540? Will it become an integral part of the web of nonproliferation treaties and regimes or will it recede into history as a well-meaning but unfulfilled attempt to prevent proliferation? These questions are timely and important to the nuclear materials management community and a discourse on their answers is needed.

Durbin, Karyn R.; Mladineo, Stephen V.

2006-08-01T23:59:59.000Z

379

Resolution adopting energy conservation policies for the City of Seattle and setting forth a schedule for implementing them: resolution 25259  

SciTech Connect

The Seattle City Council by Resolution 24283 adopted goals and objectives for the year 2000 including: reaching a steady level of per capita energy consumption, using energy efficiency in providing for Seattle's demands, and formulating an energy policy for the city. The nine resolutions adopted concerning energy conservation and the schedule set forth to implement the policy are established. Resolution 25257 is also presented in which the City of Seattle intends to adopt the ASHRAE Standard 90-75 entitled ''Energy Conservation in New Building Design'' to be effective January 1, 1978. (MCW)

1976-01-01T23:59:59.000Z

380

Sensitivity of aerosol radiative forcing calculations to spectral resolution  

DOE Green Energy (OSTI)

Potential impacts of aerosol radiative forcing on climate have generated considerable recent interest. An important consideration in estimating the forcing from various aerosol components is the spectral resolution used for the solar radiative transfer calculations. This paper examines the spectral resolution required from the viewpoint of overlapping spectrally varying aerosol properties with other cross sections. A diagnostic is developed for comparing different band choices, and the impact of these choices on the radiative forcing calculated for typical sulfate and biomass aerosols was investigated.

Grant, K.E.

1996-10-01T23:59:59.000Z

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


381

Analysis of Land Skin Temperature Using AVHRR Observations  

Science Conference Proceedings (OSTI)

Using satellite remote sensing techniques to take quantitative observations of the climate system will advance our knowledge and ability to model the climate system and its changes. Polar-orbiting satellite records of global land surface skin ...

Menglin Jin

2004-04-01T23:59:59.000Z

382

Multiparameter AVHRR-Derived Products for Arctic Climate Studies  

Science Conference Proceedings (OSTI)

Generation and sample applications of an integrated set of remotely sensed products for investigations of Arctic climate are described. Cloud fraction, ice surface temperature, surface albedo, downwelling radiative fluxes, ice motion vectors, and ...

Walter N. Meier; James A. Maslanik; Charles W. Fowler; Jeffrey R. Key

1997-01-01T23:59:59.000Z

383

High Resolution Solar Energy Resource Assessment within the UNEP Project  

Open Energy Info (EERE)

High Resolution Solar Energy Resource Assessment within the UNEP Project High Resolution Solar Energy Resource Assessment within the UNEP Project SWERA Dataset Summary Description (Abstract): To expand the world wide use of renewable energy a consistent, reliable, verifiable, and easily accessible database of solar energy resources is needed. Within the UNEP (United Nations Environment Programme) Project SWERA (Solar and Wind Energy Resource Assessment, http://swera.unep.net), funded by GEF (Global Environment Facility), a global database of solar and wind energy resources will be set up. SWERA will provide, beside the wind products, global horizontal irradiance, which is mostly used to plan photovoltaic systems, and direct normal irradiance, which is needed for solar concentrating systems. For selected countries throughout the world, additionally high resolution data will be produced which is required to plan solar energy systems in detail. Within SWERA, the partners DLR, SUNY and INPE calculate solar irradiance with high temporal resolution of 1 hour and with a spatial resolution of 10km x 10km. By processing data from geostationary satellites we provide solar irradiance data for Cuba, El Salvador, Honduras, Nicaragua, Guatemala, Brazil, Ghana, Ethiopia, Kenya, China, Sri Lanka, Nepal, and Bangladesh. In this paper we describe the ongoing work of developing this high resolution solar irradiance tx_metadatatool and cross-checking of the used solar irradiance algorithms for various satellite data.

384

Using a low-resolution entity model for shaping initial conditions for high-resolution combat models  

Science Conference Proceedings (OSTI)

Determining the initial conditions for high-resolution combat models presents a challenging modeling problem. These initial conditions can have a major impact on the outcome of the analysis, and yet there is a significant difficulty setting those conditions ...

Darryl Ahner; Arnold Buss; John Ruck

2007-12-01T23:59:59.000Z

385

An interactive super resolution coding approach of images and videos for enhanced user visualization  

Science Conference Proceedings (OSTI)

In this paper we propose an interactive super resolution coding technique to enhance user's visualization of received low resolution (LR) images. The proposed technique hides/embeds high frequencies and edges in the LR image, and constructs a high resolution ...

Gamal Fahmy

2011-12-01T23:59:59.000Z

386

A Variable-Resolution Stretched-Grid General Circulation Model: Regional Climate Simulation  

Science Conference Proceedings (OSTI)

The development of and results obtained with a variable-resolution stretched-grid GCM for the regional climate simulation mode are presented. A global variable-resolution stretched grid used in the study has enhanced horizontal resolution over ...

Michael S. Fox-Rabinovitz; Lawrence L. Takacs; Ravi C. Govindaraju; Max J. Suarez

2001-03-01T23:59:59.000Z

387

NIST Transfer radiometers and reference detectors  

Science Conference Proceedings (OSTI)

... We are presently developing a pair of next generation reference detectors: an ... development for use as a primary standard in low power calibrations. ...

2013-04-10T23:59:59.000Z

388

NIST Transfer and working standard radiometers and ...  

Science Conference Proceedings (OSTI)

... routine, monochromator-based spectral power responsivity scale ... with noise-equivalent powers that are ... The NIST-developed first generation Si, Ge ...

2012-10-18T23:59:59.000Z

389

Prototype Cryospheric Experimental Synthetic Aperture Radiometer (CESAR)  

E-Print Network (OSTI)

.W.Lawrence@.nasa.gov 6 Colorado State University, Steven.Reising@ColoState.edu 7 Valparaiso University, Thomas in instrumentation that uses the underside of the fuselage and wing space of Uninhabited Aerial Vehicles (UAVs-Band frequency survey (nanosat), instrumentation developed for soil moisture and salinity measurements (Rad

Reising, Steven C.

390

NIST Primary optical watt radiometer (POWR)  

Science Conference Proceedings (OSTI)

... better optimized for specific transfer wavelengths and power levels. Major Accomplishments: POWR impacts total solar irradiance measurements. ...

2012-11-16T23:59:59.000Z

391

Analytical Land–Atmosphere Radiometer Model  

Science Conference Proceedings (OSTI)

Conversion of radiometric land surface temperature (?r) to an equivalent isothermal (aerodynamic) surface temperature (?i) is important in balancing the land surface energy budget with satellite-based ?r measurements. An analytical land–...

Ayman Suleiman; Richard Crago

2002-02-01T23:59:59.000Z

392

NIST Missile defense transfer radiometer (MDXR)  

Science Conference Proceedings (OSTI)

... test facilities against the NIST primary optical power ... can also evaluate non-Planckian sources that may fall ... and a spectral calibration source for the ...

2010-10-05T23:59:59.000Z

393

NIST Thermal infrared transfer radiometer (TXR)  

Science Conference Proceedings (OSTI)

... The primary method uses either the ambient background water bath blackbody and ... where it performed in-situ measurements of various sources in a ...

2010-10-05T23:59:59.000Z

394

Angular velocity control for a windmill radiometer  

Science Conference Proceedings (OSTI)

In this paper, an inexpensive and simple control experiment which could be readily used to demonstrate proportional integral (PI) compensator design through root locus is presented. This work is also a useful example of analog control, which is not often ...

A. Arenas; L. Victoria; F. J. Abellan; J. A. Ibanez

1999-05-01T23:59:59.000Z

395

Spatial resolution of a ?PIC-based neutron imaging detector  

E-Print Network (OSTI)

We present a detailed study of the spatial resolution of our time-resolved neutron imaging detector utilizing a new neutron position reconstruction method that improves both spatial resolution and event reconstruction efficiency. Our prototype detector system, employing a micro-pattern gaseous detector known as the micro-pixel chamber ({\\mu}PIC) coupled with a field-programmable-gate-array-based data acquisition system, combines 100{\\mu}m-level spatial and sub-{\\mu}s time resolutions with excellent gamma rejection and high data rates, making it well suited for applications in neutron radiography at high-intensity, pulsed neutron sources. From data taken at the Materials and Life Science Experimental Facility within the Japan Proton Accelerator Research Complex (J-PARC), the spatial resolution was found to be approximately Gaussian with a sigma of 103.48 +/- 0.77 {\\mu}m (after correcting for beam divergence). This is a significant improvement over that achievable with our previous reconstruction method (334 +/- 13 {\\mu}m), and compares well with conventional neutron imaging detectors and with other high-rate detectors currently under development. Further, a detector simulation indicates that a spatial resolution of less than 60 {\\mu}m may be possible with optimization of the gas characteristics and {\\mu}PIC structure. We also present an example of imaging combined with neutron resonance absorption spectroscopy.

Joseph D. Parker; Masahide Harada; Kaori Hattori; Satoru Iwaki; Shigeto Kabuki; Yuji Kishimoto; Hidetoshi Kubo; Shunsuke Kurosawa; Yoshihiro Matsuoka; Kentaro Miuchi; Tetsuya Mizumoto; Hironobu Nishimura; Takayuki Oku; Tatsuya Sawano; Takenao Shinohara; Jun-ichi Suzuki; Atsushi Takada; Toru Tanimori; Kazuki Ueno

2013-05-16T23:59:59.000Z

396

Portable electro-mechanically cooled high-resolution germanium detector  

SciTech Connect

We have integrated a small, highly-reliable, electro-mechanical cryo-cooler with a high-resolution germanium detector for portable/field applications. The system weighs 6.8 kg and requires 40 watts of power to operate once the detector is cooled to its operating temperature. the detector is a 500 mm{sup 2} by 20-mm thick low-energy configuration that gives a full-width at half maximum (FWHM) energy resolution of 523 eV at 122 keV, when cooled with liquid nitrogen. The energy resolution of the detector, when cooled with the electro-mechanical cooler, is 570 eV at 122 keV. We have field tested this system in measurements of plutonium and uranium for isotopic and enrichment information using the MGA and MGAU analysis programs without any noticeable effects on the results.

Neufeld, K.W.; Ruhter, W.D.

1995-05-01T23:59:59.000Z

397

Application Of High-Resolution Thermal Infrared Sensors For Geothermal  

Open Energy Info (EERE)

High-Resolution Thermal Infrared Sensors For Geothermal High-Resolution Thermal Infrared Sensors For Geothermal Exploration At The Salton Sea, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Application Of High-Resolution Thermal Infrared Sensors For Geothermal Exploration At The Salton Sea, California Details Activities (2) Areas (1) Regions (0) Abstract: The Salton Sea geothermal field straddles the southeast margin of the Salton Sea in California, USA. This field includes approximately 20km2 of mud volcanoes and mud pots and centered on the Mullet Island thermal anomaly. The area has been previously exploited for geothermal power; there are currently seven power plants in the area that produce 1000 MW. The field itself is relatively un-vegetated, which provides for unfettered

398

PATTERN: Advantages of High Resolution Weather Radar Networks [EVS Event]  

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

PATTERN: Advantages of High Resolution Weather Radar Networks PATTERN: Advantages of High Resolution Weather Radar Networks September 30, 2013 Speaker: Dr. Katharina Lengfeld Meteorological Institute, University of Hamburg, Germany Date: Monday, September 30, 2013 Time: 11 am - 12 noon Location: Argonne National Laboratory TCS Building 240 Room 4301 Precipitation observations with radars operating in the X-band frequency range are essential for meeting present and future requirements for flood forecasting, water management, and other hydro-meteorological applications. Besides having higher resolution, these systems are cost-effective compared to S- or C-band radars because of smaller antenna size. Disadvantages of single X-band radars are the large influence of attenuation by liquid water and a relatively short range.

399

MERIX - medium resolution (R)IXS at the APS  

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

MERIX MERIX MERIX is a medium energy resolution 6 circle diffractometer for non-resonant and resonant inelastic x-ray measurements. Detect Strip detector: dramatically more collected phonons at a given energy resolution compared to conventional detectors (principle of operation). Pin diode detector mounted on the two theta arm for final sample alignment Fluorescence detector: for absorption measurements on samples Spot size: focused horizontal x vertical = 45 um x 6 um, unfocussed = 2.2 mm x 0.4 mm Momentum resolution varies with incident energy but the angular acceptance of the analyzer is 5.7 degrees. This can be reduced with slits. Maximum two-theta is 90 (horizontal) and 62 (vertical). chi range is -15 to 20 or 75 to 110 (depending on which phi circle is used)

400

A high-resolution two-dimensional imaging velocimeter  

Science Conference Proceedings (OSTI)

Velocity interferometers are typically used to measure velocities of surfaces at a single point or along an imaged line as a function of time. We describe an optical arrangement that enables high-resolution measurements of the two-dimensional velocity field across a shock front or shocked interface. The technique is employed to measure microscopic fluctuations in shock fronts that have passed through materials being considered as ablators for indirect-drive inertial confinement fusion. With picosecond time resolution the instrument captures velocity modes with wavelengths as short as 2.5 {mu}m at a resolution of {approx}10 m/s rms on velocity fields averaging many km/s over an 800 {mu}m field of view.

Celliers, P. M.; Erskine, D. J.; Sorce, C. M.; Braun, D. G.; Landen, O. L.; Collins, G. W. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551 (United States)

2010-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


401

The theory and practice of high resolution scanning electron microscopy  

Science Conference Proceedings (OSTI)

Recent advances in instrumentation have produced the first commercial examples of what can justifiably be called High Resolution Scanning Electron Microscopes. The key components of such instruments are a cold field emission gun, a small-gap immersion probe-forming lens, and a clean dry-pumped vacuum. The performance of these microscopes is characterized by several major features including a spatial resolution, in secondary electron mode on solid specimens, which can exceed 1nm on a routine basis; an incident probe current density of the order of 10{sup 6} amps/cm{sup 2}; and the ability to maintain these levels of performance over an accelerating voltage range of from 1 to 30keV. This combination of high resolution, high probe current, low contamination and flexible electron-optical conditions provides many new opportunitites for the application of the SEM to materials science, physics, and the life sciences. 27 refs., 14 figs.

Joy, D.C. (Tennessee Univ., Knoxville, TN (USA) Oak Ridge National Lab., TN (USA))

1990-01-01T23:59:59.000Z

402

Broadband high resolution X-ray spectral analyzer  

DOE Patents (OSTI)

A broad bandwidth high resolution x-ray fluorescence spectrometer has a performance that is superior in many ways to those currently available. It consists of an array of 4 large area microcalorimeters with 95% quantum efficiency at 6 keV and it produces x-ray spectra between 0.2 keV and 7 keV with an energy resolution of 7 to 10 eV. The resolution is obtained at input count rates per array element of 10 to 50 Hz in real-time, with analog pulse processing and thermal pile-up rejection. This performance cannot be matched by currently available x-ray spectrometers. The detectors are incorporated into a compact and portable cryogenic refrigerator system that is ready for use in many analytical spectroscopy applications as a tool for x-ray microanalysis or in research applications such as laboratory and astrophysical x-ray and particle spectroscopy.

Silver, Eric H. (Berkeley, CA); Legros, Mark (Berkeley, CA); Madden, Norm W. (Livermore, CA); Goulding, Fred (Lafayette, CA); Landis, Don (Pinole, CA)

1998-01-01T23:59:59.000Z

403

Broadband high resolution X-ray spectral analyzer  

DOE Patents (OSTI)

A broad bandwidth high resolution X-ray fluorescence spectrometer has a performance that is superior in many ways to those currently available. It consists of an array of 4 large area microcalorimeters with 95% quantum efficiency at 6 keV and it produces X-ray spectra between 0.2 keV and 7 keV with an energy resolution of 7 to 10 eV. The resolution is obtained at input count rates per array element of 10 to 50 Hz in real-time, with analog pulse processing and thermal pile-up rejection. This performance cannot be matched by currently available X-ray spectrometers. The detectors are incorporated into a compact and portable cryogenic refrigerator system that is ready for use in many analytical spectroscopy applications as a tool for X-ray microanalysis or in research applications such as laboratory and astrophysical X-ray and particle spectroscopy. 6 figs.

Silver, E.H.; Legros, M.; Madden, N.W.; Goulding, F.; Landis, D.

1998-07-07T23:59:59.000Z

404

High-Resolution Differential Ion Mobility Spectrometry of a Protein  

SciTech Connect

Use of elevated electric fields and helium-rich gases has recently enabled differential IMS with resolving power up to R ~ 300. Here we applied that technique to proteins (namely, mass-selected ubiquitin ions), achieving R up to ~80 and separating many previously mixed conformers. While still limited by conformational multiplicity within each observed feature, this resolution is some four times the highest previously reported using either conventional or differential IMS. The capability for fine resolution of protein conformers may open new avenues for variant separation in top-down proteomics.

Shvartsburg, Alexandre A.; Smith, Richard D.

2013-01-17T23:59:59.000Z

405

High resolution BPMS with integrated gain correction system  

Science Conference Proceedings (OSTI)

High resolution beam position monitors (BPM) are an essential tool to achieve and reproduce a low vertical beam emittance at the KEK Accelerator Test Facility (ATF) damping ring. The ATF damping ring (DR) BPMs are currently upgraded with new high resolution read-out electronics. Based on analog and digital down-conversion techniques, the upgrade includes an automatic gain calibration system to correct for slow drift effects and ensure high reproducible beam position readings. The concept and its technical realization, as well as preliminary results of beam studies are presented.

Wendt, M.; Briegel, C.; Eddy, N.; Fellenz, B.; Gianfelice, E.; Prieto, P.; Rechenmacher, R.; Voy, D.; /Fermilab; Terunuma, N.; Urakawa, J.; /KEK, Tsukuba

2009-08-01T23:59:59.000Z

406

Improved Spatial Resolution For Reflection Mode Infrared Spectromicroscopy  

SciTech Connect

Standard commercial infrared microscopes operating in reflection mode use a mirror to direct the reflected light from the sample to the detector. This mirror blocks about half of the incident light, however, and thus degrades the spatial resolution by reducing the numerical aperture of the objective. Here, we replace the mirror with a 50% beamsplitter to allow full illumination of the objective and retain a way to direct the reflected light to the detector. The improved spatial resolution is demonstrated using a microscope coupled to a synchrotron source.

Bechtel, Hans A; Martin, Michael C.; May, T. E.; Lerch, Philippe

2009-08-13T23:59:59.000Z

407

High-resolution seismic studies applied to injected geothermal fluids  

DOE Green Energy (OSTI)

The application of high-resolution microseismicity studies to the problem of monitoring injected fluids is one component of the Geothermal Injection Monitoring Project at LLNL. The evaluation of microseismicity includes the development of field techniques, and the acquisition and processing of events during the initial development of a geothermal field. To achieve a specific detection threshold and location precision, design criteria are presented for seismic networks. An analysis of a small swarm near Mammoth Lakes, California, demonstrates these relationships and the usefulness of high-resolution seismic studies. A small network is currently monitoring the Mammoth-Pacific geothermal power plant at Casa Diablo as it begins production.

Smith, A.T.; Kasameyer, P.

1985-01-01T23:59:59.000Z

408

Merging High Resolution Geophysical and Geochemical Surveys to Reduce  

Open Energy Info (EERE)

Merging High Resolution Geophysical and Geochemical Surveys to Reduce Merging High Resolution Geophysical and Geochemical Surveys to Reduce Exploration Risk at Glass Buttes, Oregon Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Merging High Resolution Geophysical and Geochemical Surveys to Reduce Exploration Risk at Glass Buttes, Oregon Project Type / Topic 1 Recovery Act: Geothermal Technologies Program Project Type / Topic 2 Validation of Innovative Exploration Technologies Project Description This program will combine detailed gravity, high resolution aeromagnetic, and LIDAR data, all of which will be combined for structural modeling, with hyperspectral data, which will identify and map specific minerals and mineral assemblages that may point to upflow zones. The collection of these surveys and analyses of the merged data and model will be used to site deeper slim holes. Slim holes will be flow tested to determine whether or not Ormat can move forward with developing this resource. An innovative combination of geophysical and geochemical tools will significantly reduce risk in exploring this area, and the results will help to evaluate the value of these tools independently and in combination when exploring for blind resources where structure, permeability, and temperature are the most pressing questions. The slim holes will allow testing of models and validation of methods, and the surveys within the wellbores will be used to revise the models and site production wells if their drilling is warranted.

409

High-resolution ion mobility measurements Ph. Dugourd,a)  

E-Print Network (OSTI)

High-resolution ion mobility measurements Ph. Dugourd,a) R. R. Hudgins, D. E. Clemmer,b) and M. F; accepted for publication 28 October 1996 Gas phase ion mobility measurements can resolve structural isomers for polyatomic ions and provide information about their geometries. A new experimental apparatus for performing

Clemmer, David E.

410

Accelerated High-Resolution Differential Ion Mobility Separations Using Hydrogen  

SciTech Connect

The resolving power of differential ion mobility spectrometry (FAIMS) was dramatically increased recently by the introduction of carrier gases comprising up to 75% He or various vapors, enabling many new applications. However, the gains were often at the expense of analysis speed, in particular making high-resolution FAIMS incompatible with online liquid-phase separations. Here, we report FAIMS employing hydrogen, specifically in mixtures with N2 containing up to 98.4% H2. Such compositions raise the mobilities of all ions and thus resolving power, while avoiding the electrical breakdown inevitable in He-rich mixtures. The increases of resolving power and ensuing peak resolution are especially significant at the greatest H2 fractions - above {approx}80 - 90%. Higher resolution can be exchanged for acceleration of the analyses by up to {approx}20 times. For more mobile species such as multiply-charged peptides, this exchange is presently forced by the constraints of existing FAIMS devices, but future designs optimized for H2 should consistently improve resolution for all analytes.

Shvartsburg, Alexandre A.; Smith, Richard D.

2011-11-10T23:59:59.000Z

411

High-resolution lithography based on selective removal of atoms  

Science Conference Proceedings (OSTI)

A new method of high-resolution lithography based on selective removal of atoms is described. Drawbacks of lift-off lithography in comparison with the method proposed are pointed out and test structures of metal (Mo) stripes with a thickness of 50 nm are obtained.

Domantovskii, A. G.; Gurovich, B. A.; Maslakov, K. I. [Russian Research Centre Kurchatov Institute (Russian Federation)

2006-12-15T23:59:59.000Z

412

SLGAD Resolution for Inference on Logic Programs with Annotated Disjunctions  

Science Conference Proceedings (OSTI)

Logic Programs with Annotated Disjunctions (LPADs) allow to express probabilistic information in logic programming. The semantics of an LPAD is given in terms of the well-founded models of the normal logic programs obtained by selecting one disjunct ... Keywords: Logic Programs with Annotated Disjunctions, Probabilistic Logic Programming, SLG Resolution, Well-Founded Semantics

Fabrizio Riguzzi

2010-08-01T23:59:59.000Z

413

High-Resolution Structure of Viruses from Random Snapshots  

E-Print Network (OSTI)

The advent of the X-ray Free Electron Laser (XFEL) has made it possible to record snapshots of biological entities injected into the X-ray beam before the onset of radiation damage. Algorithmic means must then be used to determine the snapshot orientations and reconstruct the three-dimensional structure of the object. Existing approaches are limited in reconstruction resolution to at best 1/30th of the object diameter, with the computational expense increasing as the eighth power of the ratio of diameter to resolution. We present an approach capable of exploiting object symmetries to recover three-dimensional structure to 1/100th of the object diameter, and thus reconstruct the structure of the satellite tobacco necrosis virus to atomic resolution. Combined with the previously demonstrated capability to operate at ultralow signal, our approach offers the highest reconstruction resolution for XFEL snapshots to date, and provides a potentially powerful alternative route for analysis of data from crystalline and...

Hosseinizadeh, A; Dashti, A; Fung, R; D'Souza, R M; Ourmazd, A

2013-01-01T23:59:59.000Z

414

Director's Protest Resolution Report Programmatic Land Use Plan  

E-Print Network (OSTI)

1 Director's Protest Resolution Report Programmatic Land Use Plan Amendments for Solar Energy......................................................................................... 68 #12;Reader How do The Dire excerpts Land Ma Report How do 1. F al 2. In n Issue T NEPA Issue N Organi Protest Issue E Rather renewab Summa There i Respon Specific decision 's Guide I read the R ector

Argonne National Laboratory

415

Gravity Waves Appearing in a High-Resolution GCM Simulation  

Science Conference Proceedings (OSTI)

Global characteristics of gravity waves in the lower stratosphere are examined using a GCM with high resolution in both the horizontal (T106, corresponding to about 120 km) and the vertical (600 m). The bottom boundary condition of the model is ...

Kaoru Sato; Toshiro Kumakura; Masaaki Takahashi

1999-04-01T23:59:59.000Z

416

RESOLUTION NO. 2011-82 ADOPTING MODESTO IRRIGATION DISTRICT'S RENEWABLE  

E-Print Network (OSTI)

RESOLUTION NO. 2011-82 ADOPTING MODESTO IRRIGATION DISTRICT'S RENEWABLE ENERGY RESOURCES. 2003-245, the Board of Directors ofthe Modesto Irrigation District adopted a Renewable Portfolio Standard (RPS) in an effort to meet 20 percent ofits retail energy sales with renewable resources by 2017

417

High Resolution Aircraft Scanner Mapping of Geothermal and Volcanic Areas  

DOE Green Energy (OSTI)

High spectral resolution GEOSCAN Mkll multispectral aircraft scanner imagery has been acquired, at 3-6 m spatial resolutions, over much of the Taupo Volcanic Zone as part of continuing investigations aimed at developing remote sensing techniques for exploring and mapping geothermal and volcanic areas. This study examined the 24-band: visible, near-IR (NIR), mid-IR (MIR) and thermal-IR (TIR) imagery acquired over Waiotapu geothermal area (3 m spatial resolution) and White Island volcano (6 m resolution). Results show that color composite images composed of visible and NIR wavelengths that correspond to color infrared (CIR) photographic wavelengths can be useful for distinguishing among bare ground, water and vegetation features and, in certain cases, for mapping various vegetation types. However, combinations which include an MIR band ({approx} 2.2 {micro}m) with either visible and NIR bands, or two NIR bands, are the most powerful for mapping vegetation types, water bodies, and bare and hydrothermally altered ground. Combinations incorporating a daytime TIR band with NIR and MIR bands are also valuable for locating anomalously hot features and distinguishing among different types of surface hydrothermal alteration.

Mongillo, M.A.; Cochrane, G.R.; Wood, C.P.; Shibata, Y.

1995-01-01T23:59:59.000Z

418

Very high resolution etching of magnetic nanostructures in organic gases  

Science Conference Proceedings (OSTI)

Two methods for high resolution dry etching of permalloy (NiFe) and iron (Fe) nanostructures are presented and discussed. The first involves the use of carbon monoxide (CO) and ammonia (NH"3) as etching gases, the second uses methane (CH"4), hydrogen ... Keywords: CH4/H2/O2, CO/NH3, Dry etching, Fe, NiFe

X. Kong; D. Krása; H. P. Zhou; W. Williams; S. McVitie; J. M. R. Weaver; C. D. W. Wilkinson

2008-05-01T23:59:59.000Z

419

Spatial resolution limits for synchrotron-based infrared spectromicroscopy  

SciTech Connect

Detailed spatial resolution tests were performed on beamline 1.4.4 at the Advanced Light Source synchrotron facility in Berkeley, CA. The high-brightness synchrotron source is coupled at this beamline to a Thermo-Electron Continumum XL infrared microscope. Two types of resolution tests in both the mid-IR (using a KBr beamsplitter and an MCT-A* detector) and in the near-IR (using a CaF2 beamsplitter and an InGaAS detector) were performed and compared to a simple diffraction-limited spot size model. At the shorter wavelengths in the near-IR the experimental results begin to deviate from only diffraction-limited. The entire data set is fit using a combined diffraction-limit and demagnified electron beam source size model. This description experimentally verifies how the physical electron beam size of the synchrotron source demagnified to the sample stage on the endstation begins to dominate the focussed spot size and therefore spatial resolution at higher energies. We discuss how different facilities, beamlines, and microscopes will affect the achievable spatial resolution.

Levenson, Erika; Lerch, Philippe; Martin, Michael C.

2007-10-15T23:59:59.000Z

420

High-resolution ionization detector and array of such detectors  

DOE Patents (OSTI)

A high-resolution ionization detector and an array of such detectors are described which utilize a reference pattern of conductive or semiconductive material to form interaction, pervious and measurement regions in an ionization substrate of, for example, CdZnTe material. The ionization detector is a room temperature semiconductor radiation detector. Various geometries of such a detector and an array of such detectors produce room temperature operated gamma ray spectrometers with relatively high resolution. For example, a 1 cm.sup.3 detector is capable of measuring .sup.137 Cs 662 keV gamma rays with room temperature energy resolution approaching 2% at FWHM. Two major types of such detectors include a parallel strip semiconductor Frisch grid detector and the geometrically weighted trapezoid prism semiconductor Frisch grid detector. The geometrically weighted detector records room temperature (24.degree. C.) energy resolutions of 2.68% FWHM for .sup.137 Cs 662 keV gamma rays and 2.45% FWHM for .sup.60 Co 1.332 MeV gamma rays. The detectors perform well without any electronic pulse rejection, correction or compensation techniques. The devices operate at room temperature with simple commercially available NIM bin electronics and do not require special preamplifiers or cooling stages for good spectroscopic results.

McGregor, Douglas S. (Ypsilanti, MI); Rojeski, Ronald A. (Pleasanton, CA)

2001-01-16T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

Efficient routing and conflict resolution in F and IADM networks  

Science Conference Proceedings (OSTI)

The paper introduces a novel routing technique and a way to realize passable permutations in F and IADM redundant multistage interconnection networks. The simplicity of selecting alternate routes for a given source-destination pair is demonstrated by ... Keywords: F networks, redundant networks, fault tolerance, network topology, conflict resolution, IADM networks, routing, passable permutations, multistage interconnection networks, cycles

Anand; Agrawal; Kini

1990-12-01T23:59:59.000Z

422

FULL TEXT OF FACULTY SENATE RESOLUTIONS January 2010 December 2011  

E-Print Network (OSTI)

Standards Committee for further review and consideration. Resolution #10-09 Approved by the Faculty Senate Committee establishes the university radiation safety policy. This committee reviews each proposal to use on the campus of ECUmust undergo a review by the office of Radiation and Biological Safety and gain approval

423

High-Resolution Initialization and Simulations of Typhoon Morakot (2009)  

Science Conference Proceedings (OSTI)

A model self-bogus vortex is constructed by cycle runs using the Weather Research and Forecasting (WRF) model to provide high-resolution initial conditions for tropical cyclone (TC) simulations. The vortex after 1 h of model simulation is used to ...

Hiep Van Nguyen; Yi-Leng Chen

2011-05-01T23:59:59.000Z

424

Radiology utilizing a gas multiwire detector with resolution enhancement  

DOE Patents (OSTI)

This invention relates to a process and apparatus for obtaining filmless, radiological, digital images utilizing a gas multiwire detector. Resolution is enhanced through projection geometry. This invention further relates to imaging systems for X-ray examination of patients or objects, and is particularly suited for mammography.

Majewski, Stanislaw (Grafton, VA); Majewski, Lucasz A. (Grafton, VA)

1999-09-28T23:59:59.000Z

425

Weaver/Friedman RESOLUTION NO. 12-202  

E-Print Network (OSTI)

with State Environmental Mandates 1. Resolution approving the 2012 GWP Renewable Portfolio Standard (RPS of both compliance with California's state RPS mandates and implementation of Califomia's cap Standard (RPS) Requirements GWP is required by state law to comply with recently enacted RPS mandates

426

Adaptive high-resolution simulation of realistic gaseous detonation waves  

DOE Green Energy (OSTI)

The numerical approximation of detonation waves in gaseous combustible mixtures is extremely demanding since a wide range of scales needs to be resolved. A dynamically adaptive high-resolution finite volume method is described that has enabled accurately resolved computational investigations of the transient behavior of regularly oscillating detonations in low-pressure hydrogen-oxygen mixtures in realistic two-dimensional geometry.

Deiterding, Ralf [ORNL

2007-01-01T23:59:59.000Z

427

Dispute prevention and dispute resolution in networked health information technology  

Science Conference Proceedings (OSTI)

The United States has committed to promote Health Information Technology through Electronic Health Records that will be exchanged among participants in the healthcare enterprise. In anticipation of problems, legal remedies have been established to protect ... Keywords: accuracy, disputes, electronic health records, medical information systems, misunderstandings, online dispute resolution, process, security

Norman Sondheimer; Ethan Katsh; Lori Clarke; Leon Osterweil; Daniel Rainey

2009-05-01T23:59:59.000Z

428

Strategy for resolution of the flammable gas safety issue  

DOE Green Energy (OSTI)

This document provides a strategy for resolution of the Flammable Gas Safety Issue. It defines the key elements required for the following: Closing the Flammable Gas Unreviewed Safety Question (USQ); Providing the administrative basis for resolving the safety issue; Defining the data needed to support these activities; and Providing the technical and administrative path for removing tanks from the Watch List.

Johnson, G.D.

1997-05-23T23:59:59.000Z

429

Probe for high resolution NMR with sample reorientation  

DOE Patents (OSTI)

An improved NMR probe and method are described which substantially improve the resolution of NMR measurements made on powdered or amorphous or otherwise orientationally disordered samples. The apparatus mechanically varies the orientation of the sample such that the time average of two or more sets of spherical harmonic functions are zero.

Pines, Alexander (Berkeley, CA); Samoson, Ago (Tallinn, SU)

1990-01-01T23:59:59.000Z

430

Probe for high resolution NMR with sample reorientation  

DOE Patents (OSTI)

An improved NMR probe and method are described which substantially improve the resolution of NMR measurements made on powdered or amorphous or otherwise orientationally disordered samples. The apparatus mechanically varies the orientation of the sample such that the time average of two or more sets of spherical harmonic functions are zero. 8 figs.

Pines, A.; Samoson, A.

1990-02-06T23:59:59.000Z

431

Resolution and noise trade-off analysis for volumetric CT  

Science Conference Proceedings (OSTI)

Until recently, most studies addressing the trade-off between spatial resolution and quantum noise were performed in the context of single-slice CT. In this study, we extend the theoretical framework of previous works to volumetric CT and further extend it by taking into account the actual shapes of the preferred reconstruction kernels. In the experimental study, we also attempt to explore a three-dimensional approach for spatial resolution measurement, as opposed to the conventional two-dimensional approaches that were widely adopted in previously published studies. By scanning a finite-sized sphere phantom, the MTF was measured from the edge profile along the spherical surface. Cases of different resolutions (and noise levels) were generated by adjusting the reconstruction kernel. To reduce bias, the total photon fluxes were matched: 120 kVp, 200 mA, and 1 s per gantry rotation. All data sets were reconstructed using a modified FDK algorithm under the same condition: Scan field-of-view (SFOV)=10 cm, and slice thickness=0.625 mm. The theoretical analysis indicated that the variance of noise is proportional to >4th power of the spatial resolution. Our experimental results supported this conclusion by showing the relationship is 4.6th (helical) or 5th (axial) power.

Li Baojun; Avinash, Gopal B.; Hsieh, Jiang [Applied Science Laboratory, General Electric Healthcare, Waukesha, Wisconsin 53188 (United States)

2007-10-15T23:59:59.000Z

432

Microsoft Word - 5Lab_High_Resolution.doc  

National Nuclear Security Administration (NNSA)

Proceedings from the Five Lab Confernce 2005 LA-UR-05-3732 Rider, W. J. et al. UNCLASSIFIED Approaches to Improved High-Resolution Methods for Eulerian Hydrodynamics (U) William Rider*, Jeff Greenough ** and Jim Kamm* *LANL, MS F699, Los Alamos, NM 87545 ** LLNL, Livermore, CA 94550 We have extended the usual notions used in high-resolution methods. Rather than applying a single principle such as monotonicity or essentially non-oscillatory stencil selection, we hybridize multiple principles applying them where they are most effective. We define methods that blend high-order accuracy with essentially non-oscillatory methods when monotonicity conditions are violated. The methods can be defined with a number of variants leading to results with differing properties. We also focus on the

433

Documentation of high resolution solar resource assessment for Ghana  

Open Energy Info (EERE)

Ghana Ghana provided by DLR Dataset Summary Description (Abstract): Documentation of the satellite-based high resolution solar resource assessment for Ghana provided by DLR. The high resolution solar data (10kmx10km) provide country maps of the annual and monthly sums of hourly global horizontal and direct normal irradiance (GHI and DNI) for the year 2000, 2001 and 2002. Additionally, for selected sites hourly values of GHI and DNI are provided.The Documentation gives an overview about the used input data and used methodology, shows example maps and describes a comparison with ground data (if provided by the country) (Purpose): The data are helpful for the assessment of the solar potential of the country and can give projet developer a first impression of the solar resource of the country. For the selected

434

High Spatial Resolution Observations of Loops in the Solar Corona  

E-Print Network (OSTI)

Understanding how the solar corona is structured is of fundamental importance to determining how the Sun's upper atmosphere is heated to high temperatures. Recent spectroscopic studies have suggested that an instrument with a spatial resolution of 200km or better is necessary to resolve coronal loops. The High Resolution Coronal Imager (Hi-C) achieved this performance on a rocket flight in July 2012. We use Hi-C data to measure the Gaussian widths of 91 loops observed in the solar corona and find a distribution that peaks at about 270km. We also use Atmospheric Imaging Assembly (AIA) data for a subset of 79 of these loops and find that their temperature distributions are narrow. These observations provide further evidence that loops in the solar corona are structured at a scale of several hundred kilometers, well above the spatial scale of proposed physical mechanisms.

Brooks, David H; Ugarte-Urra, Ignacio; Winebarger, Amy R

2013-01-01T23:59:59.000Z

435

Documentation of high resolution solar resource assessment for Sri Lanka  

Open Energy Info (EERE)

Sri Lanka Sri Lanka provided by DLR Dataset Summary Description (Abstract): Documentation of the satellite-based high resolution solar resource assessment for Sri Lanka provided by DLR. The high resolution solar data (10kmx10km) provide country maps of the annual and monthly sums of hourly global horizontal and direct normal irradiance (GHI and DNI) for the year 2000, 2002 and 2003. Additionally, for selected sites hourly values of GHI and DNI are provided.The Documentation gives an overview about the used input data and used methodology, shows example maps and describes a comparison with ground data (if provided by the country) (Purpose): The data are helpful for the assessment of the solar potential of the country and can give project developer a first impression of the solar resource of the country. For the selected sites, the hourly time series can be used for the simulation of Photovoltaic (PV)-systems or Concentrating Solar Power (CSP)-systems.

436

Human Capital: The Role of Ombudsmen in Dispute Resolution  

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

to the Ranking Member, to the Ranking Member, Subcommittee on International Security, Proliferation, and Federal Services, Committee on Government Affairs, U.S. Senate United States General Accounting Office GAO April 2001 HUMAN CAPITAL The Role of Ombudsmen in Dispute Resolution GAO-01-466 Page i GAO-01-466 The Role of Ombudsmen in Dispute Resolution Letter 1 Results in Brief 2 Background 5 Objectives, Scope, and Methodology 12 Some Agencies Use Ombudsmen to Deal With Workplace Issues 14 The Case Illustrations: Varied Approaches to a Shared Goal 15 Forums Exist for Sharing Best Practices and Lessons Learned 24 Conclusions 27 Recommendation to the Attorney General 28 Comments of Experts 28 Comments from the Attorney General 29 Appendix I Ombudsman-Related Internet Resources 31 Appendix II Federal Workplace Ombudsman Offices as of

437

Documentation of high resolution solar resource assessment (10km) for  

Open Energy Info (EERE)

for for Ethiopia provided by DLR Dataset Summary Description (Abstract): Documentation of the satellite-based high resolution solar resource assessment for Ethiopia provided by DLR. The high resolution solar data (10kmx10km) provide country maps of the annual and monthly sums of hourly global horizontal and direct normal irradiance (GHI and DNI) for the year 2000, 2001 and 2002. Additionally, for selected sites hourly values of GHI and DNI are provided.The Documentation gives an overview about the used input data and used methodology, shows example maps and describes a comparison with ground data (if provided by the country) (Purpose): The data are helpful for the assessment of the solar potential of the country and can give project developer a first impression of the solar resource of the country. For the selected

438

Collimator application for microchannel plate image intensifier resolution improvement  

DOE Patents (OSTI)

A collimator is included in a microchannel plate image intensifier (MCPI). Collimators can be useful in improving resolution of MCPIs by eliminating the scattered electron problem and by limiting the transverse energy of electrons reaching the screen. Due to its optical absorption, a collimator will also increase the extinction ratio of an intensifier by approximately an order of magnitude. Additionally, the smooth surface of the collimator will permit a higher focusing field to be employed in the MCP-to-collimator region than is currently permitted in the MCP-to-screen region by the relatively rough and fragile aluminum layer covering the screen. Coating the MCP and collimator surfaces with aluminum oxide appears to permit additional significant increases in the field strength, resulting in better resolution.

Thomas, Stanley W. (Livermore, CA)

1996-02-27T23:59:59.000Z

439

Collimator application for microchannel plate image intensifier resolution improvement  

DOE Patents (OSTI)

A collimator is included in a microchannel plate image intensifier (MCPI). Collimators can be useful in improving resolution of MCPIs by eliminating the scattered electron problem and by limiting the transverse energy of electrons reaching the screen. Due to its optical absorption, a collimator will also increase the extinction ratio of an intensifier by approximately an order of magnitude. Additionally, the smooth surface of the collimator will permit a higher focusing field to be employed in the MCP-to-collimator region than is currently permitted in the MCP-to-screen region by the relatively rough and fragile aluminum layer covering the screen. Coating the MCP and collimator surfaces with aluminum oxide appears to permit additional significant increases in the field strength, resulting in better resolution. 2 figs.

Thomas, S.W.

1996-02-27T23:59:59.000Z

440

High-Resolution Field Effect Sensing of Ferroelectric Charges  

Science Conference Proceedings (OSTI)

Nanoscale manipulation of surface charges and their imaging are essential for understanding local electronic behaviors of polar materials and advanced electronic devices. Electrostatic force microscopy and Kelvin probe force microscopy have been extensively used to probe and image local surface charges responsible for electrodynamics and transport phenomena. However, they rely on the weak electric force modulation of cantilever that limits both spatial and temporal resolutions. Here we present a field effect transistor embedded probe that can directly image surface charges on a length scale of 25 nm and a time scale of less than 125 {micro}s. On the basis of the calculation of net surface charges in a 25 nm diameter ferroelectric domain, we could estimate the charge density resolution to be as low as 0.08 {micro}C/cm{sup 2}, which is equivalent to 1/20 electron per nanometer square at room temperature.

Ko, Hyoungsoo [Samsung Advanced Institute of Science and Technology, Korea; Ryu, Kyunghee [Kookmin University; Park, Hongsik [Samsung Advanced Institute of Science and Technology, Korea; Park, Chulmin [Samsung Advanced Institute of Science and Technology, Korea; Jeon, Daeyoung [Samsung Advanced Institute of Science and Technology, Korea; Kim, Yong Kwan [Samsung Advanced Institute of Science and Technology, Korea; Jung, Juhwan [Samsung Advanced Institute of Science and Technology, Korea; Min, Dong-Ki [Samsung Advanced Institute of Science and Technology, Korea; Kim, Yunseok [Max-Planck-Institut fur Mikrostrukturphysik, Germany; Lee, Ho Nyung [ORNL; Park, Yoondong [Samsung Advanced Institute of Science and Technology, Korea; Shin, Hyunjung [Kookmin University; Hong, Seungbum [Samsung Advanced Institute of Science and Technology, Korea

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

High-resolution, cryogenic, side-entry type specimen stage  

DOE Patents (OSTI)

A high-resolution, cryogenic side-entry type specimen stage includes a copper block within which a specimen can be positioned in the electron beam of an electron microscope, one end of the copper block constituting a specimen heat exchanger, means for directing a flow of helium at cryogenic temperature into the heat exchanger, and electrical leads running from the specimen to the exterior of the microscope for four point D.C. electrical resistivity measurements.

King, Wayne E. (Woodridge, IL); Merkle, Karl L. (Clarendon Hills, IL)

1979-01-01T23:59:59.000Z

442

Resolution of reservoir scale electrical anisotropy from marine CSEM data  

Science Conference Proceedings (OSTI)

A combination of 1D and 3D forward and inverse solutions is used to quantify the sensitivity and resolution of conventional controlled source electromagnetic (CSEM) data collected using a horizontal electric dipole source to transverse electrical anisotropy located in a deep-water exploration reservoir target. Since strongly anisotropic shale layers have a vertical resistivity that can be comparable to many reservoirs, we examine how CSEM can discriminate confounding shale layers through their characteristically lower horizontal resistivity. Forward modeling demonstrates that the sensitivity to reservoir level anisotropy is very low compared to the sensitivity to isotropic reservoirs, especially when the reservoir is deeper than about 2 km below the seabed. However, for 1D models where the number of inversion parameters can be fixed to be only a few layers, both vertical and horizontal resistivity of the reservoir can be well resolved using a stochastic inversion. We find that the resolution of horizontal resistivity increases as the horizontal resistivity decreases. We show that this effect is explained by the presence of strong horizontal current density in anisotropic layers with low horizontal resistivity. Conversely, when the reservoir has a vertical to horizontal resistivity ratio of about 10 or less, the current density is vertically polarized and hence has little sensitivity to the horizontal resistivity. Resistivity anisotropy estimates from 3D inversion for 3D targets suggest that resolution of reservoir level anisotropy for 3D targets will require good a priori knowledge of the background sediment conductivity and structural boundaries.

Brown, V.; Hoversten, G.M.; Key, K.; Chen, J.

2011-10-01T23:59:59.000Z

443

HIGH-RESOLUTION CH OBSERVATIONS OF TWO TRANSLUCENT MOLECULAR CLOUDS  

SciTech Connect

We present high-resolution (1.'3 x 1.'6) observations of the CH {sup 2}{pi}{sub 1/2} (F = 1-1) emission line at 3335 MHz in two high-latitude translucent clouds, MBM 3 and 40. At the assumed cloud distances, the angular resolution corresponds to {approx}0.05 pc, nearly an order of magnitude better than previous studies. Comparisons of the CH emission with previously obtained CO(1-0) data are difficult to interpret: the CO and CH line emission correlates in MBM 40 but not in MBM 3. In both clouds, there is a spatial offset in the peak emission, and perhaps in velocity for MBM 40. The difference in emission characteristics for the two tracers are noticeable in these two nearby clouds because of the high spatial resolution. Since both CH and CO are deemed to be reliable tracers of H{sub 2}, our results indicate that more care should be taken when using one of these tracers to determine the mass of a nearby molecular cloud.

Chastain, Raymond J. [Department of Physics and Astronomy, Louisiana State University, 368 Nicholson Hall, Tower Dr. Baton Rouge, LA 70803 (United States); Cotten, David; Magnani, Loris [Department of Physics and Astronomy, University of Georgia, Athens, GA 30602 (United States)

2010-01-15T23:59:59.000Z

444

Optimization in multi-scale segmentation of high-resolution satellite images for artificial feature recognition  

Science Conference Proceedings (OSTI)

Multi-resolution segmentation, as one of the most popular approaches in object-oriented image segmentation, has been greatly enabled by the advent of the commercial software, eCognition. However, the application of multi-resolution segmentation still ...

J. Tian; D. -M. Chen

2007-10-01T23:59:59.000Z

445

The Value of a Variable Resolution Approach to Numerical Weather Prediction  

Science Conference Proceedings (OSTI)

It is shown that a numerical weather prediction system with variable resolution, higher in the early forecast range and lower afterward, provides more skilful forecasts than a system with constant resolution. Results indicate that the advantage ...

Roberto Buizza

2010-04-01T23:59:59.000Z

446

Very High-Resolution Regional Climate Simulations over Scandinavia—Present Climate  

Science Conference Proceedings (OSTI)

The hydrological cycle on a regional scale is poorly represented with a present-day coarse resolution general circulation model (GCM). With a dynamical downscaling technique, in which a regional higher-resolution climate model (RCM) is nested ...

Ole B. Christensen; Jens H. Christensen; Bennert Machenhauer; Michael Botzet

1998-12-01T23:59:59.000Z

447

The Vertical Resolution of the Kennedy Space Center 50-MHz Wind Profiler  

Science Conference Proceedings (OSTI)

The effective vertical resolution of the Kennedy Space Center 50-MHz Doppler radar wind profiler is determined using vertical wavenumber spectra and temporal coherence. The resolution ranges from being Nyquist limited at 300 m to as coarse as 900 ...

Francis J. Merceret

1999-09-01T23:59:59.000Z

448

Spatial Resolution Impacts on National Meteorological Center Nested Grid Model Simulations  

Science Conference Proceedings (OSTI)

Forecasts from different resolution versions of the National Meteorological Center Nested Grid Model (NGM) are compared for two case studies to assess an optimal ratio of model vertical and horizontal resolutions. Four combinations are considered:...

David D. Houghton; Ralph A. Petersen; Richard L. Wobus

1993-05-01T23:59:59.000Z

449

Effects of Rain Gauge Temporal Resolution on the Specification of a Z–R Relationship  

Science Conference Proceedings (OSTI)

The weather radar is an efficient alternative for measuring spatially varying rainfall covering a large area at a high temporal resolution. This paper studies the impact of rainfall gauge temporal resolution on optimal relationships between radar ...

Punpim Puttaraksa Mapiam; Nutchanart Sriwongsitanon; Siriluk Chumchean; Ashish Sharma

2009-07-01T23:59:59.000Z

450

Effects of Resolution of Satellite-based Rainfall Estimates on Hydrologic Modeling Skill at Different Scales  

Science Conference Proceedings (OSTI)

Uncertainty due to resolution of current satellite-based rainfall products is believed to be an important source of error in applications of hydrologic modeling and forecasting systems. A method to account for input’s resolution and to accurately ...

Humberto Vergara; Yang Hong; Jonathan J. Gourley; Emmanouil N. Anagnostou; Viviana Maggioni; Dimitrios Stampoulis; Pierre-Emmanuel Kirstetter

451

Climate Sensitivity of Moderate- and Low-Resolution Versions of CCSM3 to Preindustrial Forcings  

Science Conference Proceedings (OSTI)

Preindustrial (PI) simulations of the Community Climate System Model version 3 (CCSM3) at two resolutions, a moderate and a low resolution, are described and compared to the standard controls for present-day (PD) simulations. Because of ...

Bette L. Otto-Bliesner; Robert Tomas; Esther C. Brady; Caspar Ammann; Zav Kothavala; Gabriel Clauzet

2006-06-01T23:59:59.000Z

452

The NCEM one-Angstrom microscope project reaches 0.89 Angstrom resolution  

SciTech Connect

Sub-Angstrom transmission electron microscopy to a resolution of 0.89 has been achieved at the National Center for Electron Microscopy and is available to electron microscopists who have a requirement for this level of resolution.

O'Keefe, Michael A.; Wang, Y.C.

2000-02-17T23:59:59.000Z

453

High-Resolution Doppler Lidar for Boundary Layer and Cloud Research  

Science Conference Proceedings (OSTI)

The high-resolution Doppler lidar (HRDL) was developed to provide higher spatial, temporal, and velocity resolution and more reliable performance than was previously obtainable with CO2-laser-based technology. The improved performance is needed ...

Christian J. Grund; Robert M. Banta; Joanne L. George; James N. Howell; Madison J. Post; Ronald A. Richter; Ann M. Weickmann

2001-03-01T23:59:59.000Z

454

Home Energy Audits Can Help You Keep That New Year's Resolution...  

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

Home Energy Audits Can Help You Keep That New Year's Resolution Home Energy Audits Can Help You Keep That New Year's Resolution January 3, 2013 - 8:25am Addthis Blower door test...

455

High-resolution NMR spectroscopy of biological tissues using projected Magic Angle Spinning  

E-Print Network (OSTI)

High-resolution NMR spectroscopy of biological tissues using486-5744 pines@berkeley.edu NMR spectroscopy of biologicalAbstract: High-resolution NMR spectra of materials subject

Martin, Rachel W.; Jachmann, Rebecca C.; Sakellariou, Dimitris; Nielsen, Ulla Gro; Pines, Alexander

2005-01-01T23:59:59.000Z

456

High-Precision, High-Resolution Measurements of Absorption in the Oxygen A-Band  

Science Conference Proceedings (OSTI)

Issues arising in the application of high-resolution, high-precision spectroscopy to remote sensing are discussed in the context of deriving surface pressure from absorption in the O2 A-band. This application requires spectral resolution ...

D. M. O’Brien; S. A. English; Grant Da Costa

1997-02-01T23:59:59.000Z

457

The Use of a High-Resolution Standardized Precipitation Index for Drought Monitoring and Assessment  

Science Conference Proceedings (OSTI)

A high-resolution drought-monitoring tool was developed to assess drought on multiple time scales using the standardized precipitation index (SPI). Daily precipitation data at 4-km resolution are obtained from the Advanced Hydrologic Prediction ...

D. Brent McRoberts; John W. Nielsen-Gammon

2012-01-01T23:59:59.000Z

458

NREL GIS Data: Continental United States Photovoltaic High Resolution |  

Open Energy Info (EERE)

Photovoltaic High Resolution Photovoltaic High Resolution Dataset Summary Description Abstract: Monthly and annual average solar resource potential for 48 Contiguous United States. Purpose: Provide information on the solar resource potential for the 48 contiguous states. Supplemental_Information: This data provides monthly average and annual average daily total solar resource averaged over surface cells of 0.1 degrees in both latitude and longitude, or about 10 km in size. This data was developed using the State University of New York/Albany satellite radiation model. This model was developed by Dr. Richard Perez and collaborators at the National Renewable Energy Laboratory and other universities for the U.S. Department of Energy. Specific information about this model can be found in Perez, et al. (2002). This model uses hourly radiance images from geostationary weather satellites, daily snow cover data, and monthly averages of atmospheric water vapor, trace gases, and the amount of aerosols in the atmosphere to calculate the hourly total insolation (sun and sky) falling on a horizontal surface. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at latitude tilt are described in Marion and Wilcox (1994). Where possible, existing ground measurement stations are used to validate the data. Nevertheless, there is uncertainty associated with the meterological input to the model, since some of the input parameters are not avalable at a 10km resolution. As a result, it is believed that the modeled values are accurate to approximately 10% of a true measured value within the grid cell. Due to terrain effects and other micoclimate influences, the local cloud cover can vary significantly even within a single grid cell. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

459

High Resolution Atmospheric Modeling for Wind Energy Applications  

SciTech Connect

The ability of the WRF atmospheric model to forecast wind speed over the Nysted wind park was investigated as a function of time. It was found that in the time period we considered (August 1-19, 2008), the model is able to predict wind speeds reasonably accurately for 48 hours ahead, but that its forecast skill deteriorates rapidly after 48 hours. In addition, a preliminary analysis was carried out to investigate the impact of vertical grid resolution on the forecast skill. Our preliminary finding is that increasing vertical grid resolution does not have a significant impact on the forecast skill of the WRF model over Nysted wind park during the period we considered. Additional simulations during this period, as well as during other time periods, will be run in order to validate the results presented here. Wind speed is a difficult parameter to forecast due the interaction of large and small length scale forcing. To accurately forecast the wind speed at a given location, the model must correctly forecast the movement and strength of synoptic systems, as well as the local influence of topography / land use on the wind speed. For example, small deviations in the forecast track or strength of a large-scale low pressure system can result in significant forecast errors for local wind speeds. The purpose of this study is to provide a preliminary baseline of a high-resolution limited area model forecast performance against observations from the Nysted wind park. Validating the numerical weather prediction model performance for past forecasts will give a reasonable measure of expected forecast skill over the Nysted wind park. Also, since the Nysted Wind Park is over water and some distance from the influence of terrain, the impact of high vertical grid spacing for wind speed forecast skill will also be investigated.

Simpson, M; Bulaevskaya, V; Glascoe, L; Singer, M

2010-03-18T23:59:59.000Z

460

High-resolution radio observations of submillimetre galaxies  

E-Print Network (OSTI)

We have produced sensitive, high-resolution radio maps of 12 SMGs in the Lockman Hole using combined MERLIN and VLA data at a frequency of 1.4 GHz. Integrating for 350hr yielded an r.m.s. noise of 6.0 uJy/beam and a resolution of 0.2-0.5". For the first time, wide-field data from the two arrays have been combined in the (u,v) plane and the bandwidth smearing response of the VLA data has been removed. All of the SMGs are detected in our maps as well as sources comprising a non-submm luminous control sample. We find evidence that SMGs are more extended than the general uJy radio population and that therefore, unlike in local ULIRGs, the starburst component of the radio emission is extended and not confined to the galactic nucleus. For the eight sources with redshifts we measure linear sizes between 1 and 8 kpc with a median of 5 kpc. Therefore, they are in general larger than local ULIRGs which may support an early-stage merger scenario for the starburst trigger. X-rays betray AGN in six of the 33 sources in the combined sample. All but one of these are in the control sample, suggesting a lower incidence of AGN amongst the submm-luminous galaxies which is, in turn, consistent with increased X-ray absorption in these dust-obscured starbursts. Only one of our sources is resolved into multiple, distinct components with our high-resolution data. Finally, compared to a previous study of faint radio sources in the GOODS-N field we find systematically smaller source sizes and no evidence for a tail extending to ~4". Possible reasons for this are discussed.

A. D. Biggs; R. J. Ivison

2007-12-18T23:59:59.000Z

Note: This page contains sample records for the topic "resolution radiometer avhrr" 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

NREL GIS Data: Continental United States High Resolution Concentrating  

Open Energy Info (EERE)

High Resolution Concentrating High Resolution Concentrating Solar Power Dataset Summary Description Abstract: Monthly and annual average solar resource potential for the lower 48 states of the United States of America. Purpose: Provide information on the solar resource potential for the for the lower 48 states of the United States of America. Supplemental_Information: This data provides monthly average and annual average daily total solar resource averaged over surface cells of approximatley 40 km by 40 km in size. This data was developed from the Climatological Solar Radiation (CSR) Model. The CSR model was developed by the National Renewable Energy Laboratory for the U.S. Department of Energy. Specific information about this model can be found in Maxwell, George and Wilcox (1998) and George and Maxwell (1999). This model uses information on cloud cover, atmostpheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. The cloud cover data used as input to the CSR model are an 7-year histogram (1985-1991) of monthly average cloud fraction provided for grid cells of approximately 40km x 40km in size. Thus, the spatial resolution of the CSR model output is defined by this database. The data are obtained from the National Climatic Data Center in Ashville, North Carolina, and were developed from the U.S. Air Force Real Time Nephanalysis (RTNEPH) program. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at latitude tilt are described in Marion and Wilcox (1994). Where possible, existing ground measurement stations are used to validate the data. Nevertheless, there is uncertainty associated with the meterological input to the model, since some of the input parameters are not avalible at a 40km resolution. As a result, it is believed that the modeled values are accurate to approximately 10% of a true measured value within the grid cell. Due to terrain effects and other micoclimate influences, the local cloud cover can vary significantly even within a single grid cell. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

462

NREL GIS Data: Hawaii Low Resolution Concentrating Solar Power Resource |  

Open Energy Info (EERE)

Low Resolution Concentrating Solar Power Resource Low Resolution Concentrating Solar Power Resource Dataset Summary Description Abstract: Monthly and annual average solar resource potential for Hawaii. Purpose: Provide information on the solar resource potential for Hawaii. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. Supplemental_Information: This data provides monthly average and annual average daily total solar resource averaged over surface cells of approximately 40 km by 40 km in size. This data was developed from the Climatological Solar Radiation (CSR) Model. The CSR model was developed by the National Renewable Energy Laboratory for the U.S. Department of Energy. Specific information about this model can be found in Maxwell, George and Wilcox (1998) and George and Maxwell (1999). This model uses information on cloud cover, atmostpheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. The cloud cover data used as input to the CSR model are an 7-year histogram (1985-1991) of monthly average cloud fraction provided for grid cells of approximately 40km x 40km in size. Thus, the spatial resolution of the CSR model output is defined by this database. The data are obtained from the National Climatic Data Center in Ashville, North Carolina, and were developed from the U.S. Air Force Real Time Nephanalysis (RTNEPH) program. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at latitude tilt are described in Marion and Wilcox (1994). Where possible, existing ground measurement stations are used to validate the data. Nevertheless, there is uncertainty associated with the meterological input to the model, since some of the input parameters are not avalible at a 40km resolution. As a result, it is believed that the modeled values are accurate to approximately 10% of a true measured value within the grid cell. Due to terrain effects and other micoclimate influences, the local cloud cover can vary significantly even within a single grid cell. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain.

463

Atomic Resolution Imaging with a sub-50 pm Electron Probe  

SciTech Connect

Using a highly coherent focused electron probe in a 5th order aberration-corrected transmission electron microscope, we report on resolving a crystal spacing less than 50 pm. Based on the geometrical source size and residual coherent and incoherent axial lens aberrations, an electron probe is calculated, which is theoretically capable of resolving an ideal 47 pm spacing with 29percent contrast. Our experimental data show the 47 pm spacing of a Ge 114 crystal imaged with 11-18percent contrast at a 60-95percent confidence level, providing the first direct evidence for sub 50-pm resolution in ADF STEM imaging.

Erni, Rolf P.; Rossell, Marta D.; Kisielowski, Christian; Dahmen, Ulrich

2009-03-02T23:59:59.000Z

464

NREL GIS Data: Alaska Low Resolution Concentrating Solar Power Resource |  

Open Energy Info (EERE)

Alaska Low Resolution Concentrating Solar Power Resource Alaska Low Resolution Concentrating Solar Power Resource Dataset Summary Description Abstract: Monthly and annual average solar resource potential for Alaska. Purpose: Provide information on the solar resource potential for Alaska. The insolation values represent the average solar energy available to a flat plate collector, such as a photovoltaic panel, oriented due south at an angle from horizontal equal to the latitude of the collector location. Supplemental_Information: This data provides monthly average and annual average daily total solar resource averaged over surface cells of approximatley 40 km by 40 km in size. This data was developed from the Climatological Solar Radiation (CSR) Model. The CSR model was developed by the National Renewable Energy Laboratory for the U.S. Department of Energy. Specific information about this model can be found in Maxwell, George and Wilcox (1998) and George and Maxwell (1999). This model uses information on cloud cover, atmostpheric water vapor and trace gases, and the amount of aerosols in the atmosphere to calculate the monthly average daily total insolation (sun and sky) falling on a horizontal surface. The cloud cover data used as input to the CSR model are an 7-year histogram (1985-1991) of monthly average cloud fraction provided for grid cells of approximately 40km x 40km in size. Thus, the spatial resolution of the CSR model output is defined by this database. The data are obtained from the National Climatic Data Center in Ashville, North Carolina, and were developed from the U.S. Air Force Real Time Nephanalysis (RTNEPH) program. Atmospheric water vapor, trace gases, and aerosols are derived from a variety of sources. The procedures for converting the collector at latitude tilt are described in Marion and Wilcox (1994). Where possible, existing ground measurement stations are used to validate the data. Nevertheless, there is uncertainty associated with the meterological input to the model, since some of the input parameters are not avalible at a 40km resolution. As a result, it is believed that the modeled values are accurate to approximately 10% of a true measured value within the grid cell. Due to terrain effects and other micoclimate influences, the local cloud cover can vary significantly even within a single grid cell. Furthermore, the uncertainty of the modeled estimates increase with distance from reliable measurement sources and with the complexity of the terrain. Units are in watt hours.

465

Heuristic optimization in penumbral image for high resolution reconstructed image  

SciTech Connect

Penumbral imaging is a technique which uses the fact that spatial information can be recovered from the shadow or penumbra that an unknown source casts through a simple large circular aperture. The size of the penumbral image on the detector can be mathematically determined as its aperture size, object size, and magnification. Conventional reconstruction methods are very sensitive to noise. On the other hand, the heuristic reconstruction method is very tolerant of noise. However, the aperture size influences the accuracy and resolution of the reconstructed image. In this article, we propose the optimization of the aperture size for the neutron penumbral imaging.

Azuma, R.; Nozaki, S. [Transdisciplinary Research Organization for Subtropics and Island Studies, University of the Ryukyus, Okinawa 903-0213 (Japan); Fujioka, S. [Institute of Laser Engineering, Osaka University, Osaka 565-0871 (Japan); Chen, Y. W. [College of Information Science and Engineering, Ritsumeikan University, Shiga 525-8577 (Japan); Namihira, Y. [Faculty of Engineering, University of the Ryukyus, Okinawa 903-0213 (Japan)

2010-10-15T23:59:59.000Z

466

Toroidal magnetic detector for high resolution measurement of muon momenta  

DOE Patents (OSTI)

A muon detector system including central and end air-core superconducting toroids and muon detectors enclosing a central calorimeter/detector are described in this paper. Muon detectors are positioned outside of toroids and all muon trajectory measurements are made in a nonmagnetic environment. Internal support for each magnet structure is provided by sheets, located at frequent and regularly spaced azimuthal planes, which interconnect the structural walls of the toroidal magnets. In a preferred embodiment, the shape of the toroidal magnet volume is adjusted to provide constant resolution over a wide range of rapidity.

Bonanos, P.

1990-11-30T23:59:59.000Z

467

Toroidal magnetic detector for high resolution measurement of muon momenta  

DOE Patents (OSTI)

A muon detector system including central and end air-core superconducting toroids and muon detectors enclosing a central calorimeter/detector. Muon detectors are positioned outside of toroids and all muon trajectory measurements are made in a nonmagnetic environment. Internal support for each magnet structure is provided by sheets, located at frequent and regularly spaced azimuthal planes, which interconnect the structural walls of the toroidal magnets. In a preferred embodiment, the shape of the toroidal magnet volume is adjusted to provide constant resolution over a wide range of rapidity. 4 figs.

Bonanos, P.

1992-01-07T23:59:59.000Z

468

Clickstream data yields high-resolution maps of science  

SciTech Connect

Intricate maps of science have been created from citation data to visualize the structure of scientific activity. However, most scientific publications are now accessed online. Scholarly web portals record detailed log data at a scale that exceeds the number of all existing citations combined. Such log data is recorded immediately upon publication and keeps track of the sequences of user requests (clickstreams) that are issued by a variety of users across many different domains. Given these advantagees of log datasets over citation data, we investigate whether they can produce high-resolution, more current maps of science.

Bollen, Johan [Los Alamos National Laboratory; Van De Sompel, Herbert [Los Alamos National Laboratory; Hagberg, Aric [Los Alamos National Laboratory; Bettencourt, Luis [Los Alamos National Laboratory; Chute, Ryan [Los Alamos National Laboratory; Rodriguez, Marko A [Los Alamos National Laboratory; Balakireva, Lyudmila [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

469

Resolution-independent surface rendering using programmable graphics hardware  

DOE Patents (OSTI)

Surfaces defined by a Bezier tetrahedron, and in particular quadric surfaces, are rendered on programmable graphics hardware. Pixels are rendered through triangular sides of the tetrahedra and locations on the shapes, as well as surface normals for lighting evaluations, are computed using pixel shader computations. Additionally, vertex shaders are used to aid interpolation over a small number of values as input to the pixel shaders. Through this, rendering of the surfaces is performed independently of viewing resolution, allowing for advanced level-of-detail management. By individually rendering tetrahedrally-defined surfaces which together form complex shapes, the complex shapes can be rendered in their entirety.

Loop, Charles T. (Bellevue, WA); Blinn, James Frederick (Bellevue, WA)

2008-12-16T23:59:59.000Z

470

Visualization of High Resolution Spatial Mass Spectrometric Data during Acquisition  

Science Conference Proceedings (OSTI)

Mass Spectrometric Imaging (IMS) allows the generation of 2D ion density maps that help visualize molecules present in sections of tissues and cells. The combination of spatial and mass resolution results in large and complex data sets that require powerful and efficient analysis and interpretation. In this paper, a graphical user interface (GUI) that can visualize the large data during data acquisition itself is presented. The program also has the ability to perform processing and analysis of the dataset. The various functions of the GUI including visualization of mass spectra, generation of 2D maps for selected species, manipulation of the heat maps, and peak identification are also presented.

Thomas, Mathew; Heath, Brandi S.; Laskin, Julia; Li, Dongsheng; Liu, Ellen C.; Hui, Katrina L.; Kuprat, Andrew P.; Kleese van Dam, Kerstin; Carson, James P.

2012-08-28T23:59:59.000Z

471

Operation Castle. Project 18. 3. High-resolution spectroscopy  

SciTech Connect

The high-resolution work undertaken at Castle with three spectrographs of relatively high dispersion is described and analyzed. Profitable results were obtained from the spectra taken with the JACO 21-foot Wadsworth-mount spectrograph, mainly the highest violet cutoff to date and a very predominant NO/sub 2/ spectrum in absorption. There is a definite indication that the NO/sub 2/ exists in a state of excitation above that observed at ordinary room temperature. The observation as a function of time of the formation NO/sub 2/, which conceivably can be formed in different ways during different intervals of the explosion, would be of great interest.

Beck, C.A.; Campbell, J.H.

1985-09-01T23:59:59.000Z

472

Regulatory Impact Review Implementation of Inter-American Tropical Tuna Commission Resolutions Adopted in  

E-Print Network (OSTI)

Regulatory Impact Review Implementation of Inter-American Tropical Tuna Commission Resolutions to implement the decisions of the IATTC. The Tuna Conventions Act (16 U.S.C. 951-961) authorizes the Secretary the Resolution on Tuna Conservation 2011-2013 (C-11-01), the Resolution Prohibiting Fishing on Data Buoys (C-11

473

Implementation and optimization of a new super-resolution technique in PET imaging  

Science Conference Proceedings (OSTI)

Super-Resolution (SR) techniques are used in PET imaging to generate a high-resolution image by combining multiple low-resolution images that have been acquired from different points of view (POV). In this paper, we propose a new implementation of the ...

Guoping Chang; Tinsu Pan; John W. Clark; Osama R. Mawlawi

2009-06-01T23:59:59.000Z

474

Experimental application of process technology to the creation and adoption of online dispute resolution  

Science Conference Proceedings (OSTI)

We report on the development of formal models of alternative dispute resolution processes, the creation of an online dispute resolution system based on this model and initial experimental analysis of this system. Early results suggest that formalizing ... Keywords: mediation, online dispute resolution, process technology

Ethan Katsh; Leon J. Osterweil; Norman K. Sondheimer; Daniel Rainey

2006-05-01T23:59:59.000Z

475

FREE RESOLUTIONS OVER SHORT LOCAL RINGS LUCHEZAR L. AVRAMOV, SRIKANTH B. IYENGAR, AND LIANA M. SEGA  

E-Print Network (OSTI)

FREE RESOLUTIONS OVER SHORT LOCAL RINGS LUCHEZAR L. AVRAMOV, SRIKANTH B. IYENGAR, AND LIANA M. S¸EGA To the memory of our friend and colleague Anders Frankild. Abstract. The structure of minimal free resolutions This paper is concerned with the structure of minimal free resolutions of finite (that is, finitely generated

Sega, Liana - Department of Mathematics and Statistics, University of Missouri

476

Compact high resolution isobar separator for study of exotic decays  

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

Compact high resolution isobar separator for study of Compact high resolution isobar separator for study of exotic decays A. Piechaczek 1 , V. Shchepunov 1 , H. K. Carter 1 J. C. Batchelder 1 , E. F. Zganjar 2 1 UNIRIB, Oak Ridge Associated Universities, Oak Ridge, TN 37830 2 Department of Physics & Astronomy, Louisiana State University, Baton Rouge, LA 70803 A compact isobar separator, based on the Multi-Pass-Time-of-Flight (MTOF) principle, is developed [1]. A mass resolving power (MRP) as spectrometer of 110,000 (FWHM) is achieved in Time-of-Flight spectra of N 2 molecules (no physical ion separation) after 300 laps or ToF = 9.7 ms. Operated as a separator [2], molecules of N 2 and CO with ∆M/M = 1/2500 or 10.433 MeV are separated with a Bradbury Nielsen electrostatic ion gate, and the MRP (FWHM) is about 40,000 after 120 laps. In the separator as well as in

477

A new “Variable Resolution Associative Memory” for High Energy Physics  

E-Print Network (OSTI)

We describe an important advancement for the Associative Memory device (AM). The AM is a VLSI processor for pattern recognition based on Content Addressable Memory (CAM) architecture. The AM is optimized for on-line track finding in high-energy physics experiments. Pattern matching is carried out finding track candidates in coarse resolution “roads”. A large AM bank stores all trajectories of interest, called “patterns”, for a given detector resolution. The AM extracts roads compatible with a given event during detector read-out. Two important variables characterize the quality of the AM bank: its “coverage” and the level of “found fakes”. The coverage, which describes the geometric efficiency of a bank, is defined as the fraction of tracks that match at least a pattern in the bank. Given a certain road size, the coverage of the bank can be increased just adding patterns to the bank, while the number of found fakes unfortunately is roughly proportional to this number of patterns in the bank. M...

Annovi, A; The ATLAS collaboration; Beretta, M; Bossini, E; Crescioli, F; Dell'Orso, M; Giannetti, P; Hoff, J; Liberali, V; Liu, T; Magalotti, D; Piendibene, M; Sacco, A; Schoening, A; Soltveit, H K; Stabile, A; Tripiccione, R; Vitillo, R; Volpi, G

2011-01-01T23:59:59.000Z

478

A new Variable Resolution Associative Memory for High Energy Physics  

E-Print Network (OSTI)

We describe an important advancement for the Associative Memory device (AM). The AM is a VLSI processor for pattern recognition based on Content Addressable Memory (CAM) architecture. The AM is optimized for on-line track finding in high-energy physics experiments. Pattern matching is carried out finding track candidates in coarse resolution “roads”. A large AM bank stores all trajectories of interest, called “patterns”, for a given detector resolution. The AM extracts roads compatible with a given event during detector read-out. Two important variables characterize the quality of the AM bank: its “coverage” and the level of “found fakes”. The coverage, which describes the geometric efficiency of a bank, is defined as the fraction of tracks that match at least a pattern in the bank. Given a certain road size, the coverage of the bank can be increased just adding patterns to the bank, while the number of found fakes unfortunately is roughly proportional to this number of patterns in the bank. M...

Annovi, A; The ATLAS collaboration; Beretta, M; Bossini, E; Crescioli, F; Dell'Orso, M; Giannetti, P; Hoff, J; Liberali, V; Liu, T; Magalotti, D; Piendibene, M; Sacco, A; Schoening, A; Soltveit, H K; Stabile, A; Tripiccione, R; Vitillo, R; Volpi, G

2011-01-01T23:59:59.000Z

479

A High-Resolution Solution of the Ribosome Structure  

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

Resolution Solution of the Ribosome Structure Resolution Solution of the Ribosome Structure Researchers using high-brilliance x-ray beams from the Structural Biology Center undulator beamline 19-ID at the Advanced Photon Source have obtained a detailed picture of how the ribosome allows accurate translation of the genetic code. What they found offers new information on how proteins are formed and how they create the chain of proteins that make up an organism. The rRNA of the 30S ribosomal subunit, as determined at the Structural Biology Center. The parts of the rRNA as shown here are: messenger RNA (purple), head (green), central domain ((blue), and body (red) with H44 in cyan. The gold ribbons represent the binding from the anticodon stem loop. Left: The rRNA of the 30S ribosomal subunit, as determined at the Structural Biology Center. The parts of the rRNA as shown here are: messenger RNA (purple), head (green), central domain ((blue), and body (red) with H44 in cyan. The gold ribbons represent the binding from the anticodon stem loop. (Courtesy of the Medical Research Council Laboratory of Molecular Biology, UK)

480

A Unitary Anesthetic Binding Site at High Resolution  

DOE Green Energy (OSTI)

Propofol is the most widely used injectable general anesthetic. Its targets include ligand-gated ion channels such as the GABA{sub A} receptor, but such receptor-channel complexes remain challenging to study at atomic resolution. Until structural biology methods advance to the point of being able to deal with systems such as the GABA{sub A} receptor, it will be necessary to use more tractable surrogates to probe the molecular details of anesthetic recognition. We have previously shown that recognition of inhalational general anesthetics by the model protein apoferritin closely mirrors recognition by more complex and clinically relevant protein targets; here we show that apoferritin also binds propofol and related GABAergic anesthetics, and that the same binding site mediates recognition of both inhalational and injectable anesthetics. Apoferritin binding affinities for a series of propofol analogs were found to be strongly correlated with the ability to potentiate GABA responses at GABA{sub A} receptors, validating this model system for injectable anesthetics. High resolution x-ray crystal structures reveal that, despite the presence of hydrogen bond donors and acceptors, anesthetic recognition is mediated largely by van der Waals forces and the hydrophobic effect. Molecular dynamics simulations indicate that the ligands undergo considerable fluctuations about their equilibrium positions. Finally, apoferritin displays both structural and dynamic responses to anesthetic binding, which may mimic changes elicited by anesthetics in physiologic targets like ion channels.

Vedula, L. Sangeetha; Brannigan, Grace; Economou, Nicoleta J.; Xi, Jin; Hall, Michael A.; Liu, Renyu; Rossi, Matthew J.; Dailey, William P.; Grasty, Kimberly C.; Klein, Michael L.; Eckenhoff, Roderic G.; Loll, Patrick J.; (Drexel-MED); (UPENN)

2009-10-21T23:59:59.000Z

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481

Atomic-Resolution STEM at Low Primary Energies  

Science Conference Proceedings (OSTI)

Aberration-corrected scanning transmission electron microscopes (STEMs) can now produce electron probes as small as 1 {angstrom} at 60 keV. This level of performance allows individual light atoms to be imaged in various novel materials including graphene, monolayer boron nitride, and carbon nanotubes. Operation at 60 keV avoids direct knock-on damage in such materials, but some radiation damage often remains, and limits the maximum usable electron dose. Elemental identification by electron energy loss spectroscopy (EELS) is then usefully supplemented by annular dark-field (ADF) imaging, for which the signal is much larger and the spatial resolution significantly better. Because of its strong dependence on the atomic number Z, ADF can be used to identify the chemical type of individual atoms, both heavy and light. We review the instrumental requirements for atomic resolution imaging at 60 keV and lower energies, and we illustrate the kinds of studies that have now become possible by ADF images of graphene, monolayer BN, and single-wall carbon nanotubes, and by ADF images and EEL spectra of carbon nanotubes containing nanopods filled with single atoms of Er. We then discuss likely future developments.

Krivanek, Ondrej L. [Nion Co; Chisholm, Matthew F [ORNL; Dellby, N. [Nion Company, WA; Murfitt, M. F. [Nion Company, WA

2011-01-01T23:59:59.000Z

482

Atomic Resolution Coherent Diffractive Imaging and Ultrafast Science  

Science Conference Proceedings (OSTI)

A major scientific challenge is determining the 3-D atomic structure of small nanostructures, including single molecules. Coherent diffractive imaging (CDI) is a promising approach. Recent progress has demonstrated coherent diffraction patterns can be recorded from individual nanostructures and phased to reconstruct their structure. However, overcoming the dose limit imposed by radiation damage is a major obstacle toward the full potential of CDI. One approach is to use ultrafast x-ray or electron pulses. In electron diffraction, amplitudes recorded in a diffraction pattern are unperturbed by lens aberrations, defocus, and other microscope resolution-limiting factors. Sub-A signals are available beyond the information limit of direct imaging. Significant contrast improvement is obtained compared to high-resolution electron micrographs. progress has also been made in developing time-resolved electron diffraction and imaging for the study of ultrafast dynamic processes in materials. This talk will cover these crosscutting issues and the convergence of electron and x-ray diffraction techniques toward structure determination of single molecules.

Zuo, Jian-min [University of Illinois

2011-01-12T23:59:59.000Z

483

A Unitary Anesthetic Binding Site at High Resolution  

DOE Green Energy (OSTI)

Propofol is the most widely used injectable general anesthetic. Its targets include ligand-gated ion channels such as the GABA{sub A} receptor, but such receptor-channel complexes remain challenging to study at atomic resolution. Until structural biology methods advance to the point of being able to deal with systems such as the GABA{sub A} receptor, it will be necessary to use more tractable surrogates to probe the molecular details of anesthetic recognition. We have previously shown that recognition of inhalational general anesthetics by the model protein apoferritin closely mirrors recognition by more complex and clinically relevant protein targets; here we show that apoferritin also binds propofol and related GABAergic anesthetics, and that the same binding site mediates recognition of both inhalational and injectable anesthetics. Apoferritin binding affinities for a series of propofol analogs were found to be strongly correlated with the ability to potentiate GABA responses at GABA{sub A} receptors, validating this model system for injectable anesthetics. High resolution x-ray crystal structures reveal that, despite the presence of hydrogen bond donors and acceptors, anesthetic recognition is mediated largely by van der Waals forces and the hydrophobic effect. Molecular dynamics simulations indicate that the ligands undergo considerable fluctuations about their equilibrium positions. Finally, apoferritin displays both structural and dynamic responses to anesthetic binding, which may mimic changes elicited by anesthetics in physiologic targets like ion channels.

L Vedula; G Brannigan; N Economou; J Xi; M Hall; R Liu; M Rossi; W Dailey; K Grasty; et. al.

2011-12-31T23:59:59.000Z

484

High Resolution Irradiance Spectrum from 300 to 1000 nm  

E-Print Network (OSTI)

The FTS scans that made up the Kitt Peak Solar Flux Atlas by Kurucz, Furenlid, Brault, and Testerman (1984) have been re-reduced. An approximate telluric atmospheric model was determined for each FTS scan. Large-scale features produced by O3 and O2 dimer were computed and divided out. The solar continuum level was found by fitting a smooth curve to high points in each scan. The scans were normalized to the fitted continuum to produce a residual flux spectrum for each FTS scan. The telluric line spectrum was computed using HITRAN and other line data for H2O, O2, and CO2. The line parameters were adjusted for an approximate match to the observed spectra. The scans were divided by the computed telluric spectra to produce residual irradiance spectra. Artifacts from wavelength mismatches, deep lines, etc, were removed by hand and replaced by linear interpolation. Overlapping scans were fitted together to make a continuous spectrum from 300 to 1000 nm. All the above steps were iterative. The monochromatic error varies from 0.1 to 1.0 percent. The residual spectrum was calibrated two different ways: First by normalizing it to the continuum of theoretical solar model ASUN (Kurucz 1992), and second, by degrading the spectrum to the resolution of the observed irradiance (Thuillier et al. 2004) to determine a normalization function that was then applied to the high resolution spectrum.

Robert L. Kurucz

2006-05-01T23:59:59.000Z

485

Alternative dispute resolution in electricity: Just do it!  

Science Conference Proceedings (OSTI)

Using mediation and arbitration, rather than traditional litigation, would produce enormous savings to the utility industry - in costs, time, and sparing use of key management resources. The time to institutionalize ADR is now! Prior to the recent formation of the first regional transmission groups (RTGs), the electric utility industry had made relatively sparing use of alternative dispute resolution (ADR). Historically, the industry`s time-honored reaction, when confronted with disputes of any significance, has been to sound the alarm and have its lawyers man their litigation battle stations. The results of these efforts have been mixed for both winners and losers - but the most common result has been high legal fees and multi-year litigation. In contrast to the electric utility industry`s marginal use of ADR, alternative dispute resolution is widely used to resolve disputes in such areas as: environmental cleanup, product liability, intellectual property and construction contract disputes, to name just a few. Internationally, disputes arising in North America Free Trade Agreement-related matters are subject to arbitration.

Coughlin, J.T.

1995-11-01T23:59:59.000Z

486

Compact and mobile high resolution PET brain imager  

DOE Patents (OSTI)

A brain imager includes a compact ring-like static PET imager mounted in a helmet-like structure. When attached to a patient's head, the helmet-like brain imager maintains the relative head-to-imager geometry fixed through the whole imaging procedure. The brain imaging helmet contains radiation sensors and minimal front-end electronics. A flexible mechanical suspension/harness system supports the weight of the helmet thereby allowing for patient to have limited movements of the head during imaging scans. The compact ring-like PET imager enables very high resolution imaging of neurological brain functions, cancer, and effects of trauma using a rather simple mobile scanner with limited space needs for use and storage.

Majewski, Stanislaw (Yorktown, VA); Proffitt, James (Newport News, VA)

2011-02-08T23:59:59.000Z

487

Results from the High Resolution Fly's Eye Experiment  

SciTech Connect

The High Resolution Fly's Eye (HiRes) Experiment operated two fluorescence detector sites in the western Utah desert between 1997 and 2006. The HiRes results on the cosmic ray spectrum are consistent with the GZK Suppression predicted at 10{sup 19.8} eV and observe an ankle structure at 10{sup 18.5} eV. These spectral features are consistent with a proton-dominated composition for cosmic rays at the highest energies. The HiRes composition studies of both the mean and the variance of the shower maximum depth (X{sub max}) also give results that are completely consistent with a predominately protonic composition, and inconsistent with heavy nuclei such as iron. We also report on the result of anisotropy studies.

Jui, C. C. H. [Department of Physics, University of Utah, 115 S. 1400 E. Rm. 201 Salt Lake City, Utah, 84112-0830 (United States)

2011-09-22T23:59:59.000Z

488

Microsoft Word - Dispute Resolution Agreement August 2009.doc  

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

BILL RICHARDSON BILL RICHARDSON Governor DIANE DENISH Lieutenant Governor NEW MEXICO ENVIRONMENT DEPARTMENT Hazardous Waste Bureau 2905 Rodeo Park Drive East, Building 1 Santa Fe, New Mexico 87505-6303 Phone (505) 476-6000 Fax (505) 476-6030 www.nmenv.state.nm.us RON CURRY Secretary JON GOLDSTEIN Deputy Secretary CERTIFIED MAIL - RETURN RECEIPT REQUESTED August 4, 2009 David Moody, Manager Farok Sharif, President Carlsbad Field Office Washington TRU Solutions LLC Department of Energy P.O. Box 2078 P.O. Box 3090 Carlsbad, New Mexico 88221-5608 Carlsbad, New Mexico 88221-3090 RE: MAY 26, 2009 DISPUTE RESOLUTION - TERMS OF AGREEMENT WASTE ISOLATION PILOT PLANT EPA I.D. NUMBER NM4890139088 Dear Dr. Moody and Mr. Sharif: On May 18, 2009, the New Mexico Environment Department (NMED) issued comments on the

489

HIGH-RESOLUTION ATMOSPHERIC ENSEMBLE MODELING AT SRNL  

Science Conference Proceedings (OSTI)

The High-Resolution Mid-Atlantic Forecasting Ensemble (HME) is a federated effort to improve operational forecasts related to precipitation, convection and boundary layer evolution, and fire weather utilizing data and computing resources from a diverse group of cooperating institutions in order to create a mesoscale ensemble from independent members. Collaborating organizations involved in the project include universities, National Weather Service offices, and national laboratories, including the Savannah River National Laboratory (SRNL). The ensemble system is produced from an overlapping numerical weather prediction model domain and parameter subsets provided by each contributing member. The coordination, synthesis, and dissemination of the ensemble information are performed by the Renaissance Computing Institute (RENCI) at the University of North Carolina-Chapel Hill. This paper discusses background related to the HME effort, SRNL participation, and example results available from the RENCI website.

Buckley, R.; Werth, D.; Chiswell, S.; Etherton, B.

2011-05-10T23:59:59.000Z

490

A High Resolution Luminosity Monitor for SLAC Experiment E158  

DOE Green Energy (OSTI)

A calorimetric detector based on ionization has been employed as a low-angle luminosity monitor for the parity violation experiment E158 at SLAC. The experiment utilizes a 50 GeV polarized electron beam on a liquid hydrogen target. The detector looks at high energy Mott and Moller scattered electrons, with a per pulse flux of 4 x 10{sup 8} particles. This large signal allows the device to serve the dual role of monitoring target density fluctuations, as well as detecting false asymmetries. In the first physics run of the experiment, the detector has achieved a per-pulse intensity asymmetry resolution of 170 parts per million. The linearity of the device also has been verified to {<=} 1%.

Jones, Gary M

2003-09-18T23:59:59.000Z

491

Compact and mobile high resolution PET brain imager  

Science Conference Proceedings (OSTI)

A brain imager includes a compact ring-like static PET imager mounted in a helmet-like structure. When attached to a patient's head, the helmet-like brain imager maintains the relative head-to-imager geometry fixed through the whole imaging procedure. The brain imaging helmet contains radiation sensors and minimal front-end electronics. A flexible mechanical suspension/harness system supports the weight of the helmet thereby allowing for patient to have limited movements of the head during imaging scans. The compact ring-like PET imager enables very high resolution imaging of neurological brain functions, cancer, and effects of trauma using a rather simple mobile scanner with limited space needs for use and storage.

Majewski, Stanislaw (Yorktown, VA); Proffitt, James (Newport News, VA)

2011-02-08T23:59:59.000Z

492

High resolution, high rate x-ray spectrometer  

DOE Patents (OSTI)

It is an object of the invention to provide a pulse processing system for use with detected signals of a wide dynamic range which is capable of very high counting rates, with high throughput, with excellent energy resolution and a high signal-to-noise ratio. It is a further object to provide a pulse processing system wherein the fast channel resolving time is quite short and substantially independent of the energy of the detected signals. Another object is to provide a pulse processing system having a pile-up rejector circuit which will allow the maximum number of non-interfering pulses to be passed to the output. It is also an object of the invention to provide new methods for generating substantially symmetrically triangular pulses for use in both the main and fast channels of a pulse processing system.

Goulding, F.S.; Landis, D.A.

1983-07-14T23:59:59.000Z

493

A Global, Multi-Resolution Approach to Regional Ocean Modeling  

SciTech Connect

In this collaborative research project between Pennsylvania State University, Colorado State University and Florida State University, we mainly focused on developing multi-resolution algorithms which are suitable to regional ocean modeling. We developed hybrid implicit and explicit adaptive multirate time integration method to solve systems of time-dependent equations that present two signi#12;cantly di#11;erent scales. We studied the e#11;ects of spatial simplicial meshes on the stability and the conditioning of fully discrete approximations. We also studies adaptive #12;nite element method (AFEM) based upon the Centroidal Voronoi Tessellation (CVT) and superconvergent gradient recovery. Some of these techniques are now being used by geoscientists(such as those at LANL).

Du, Qiang

2013-11-08T23:59:59.000Z

494

High-Resolution Design of a Protein Loop  

DOE Green Energy (OSTI)

Despite having irregular structure, protein loops often adopt specific conformations that are critical to protein function. Most studies in de novo protein design have focused on creating proteins with regular elements of secondary structure connected by very short loops or turns. To design longer protein loops that adopt specific conformations, we have developed a protocol within the Rosetta molecular modeling program that iterates between optimizing the sequence and conformation of a loop in search of low-energy sequence-structure pairs. We have tested the procedure by designing 10-residue loops for the connection between the second and third strand in the {beta}-sandwich protein tenascin. Three low-energy designs from 7,200 flexible backbone trajectories were selected for experimental characterization. All three designs, called LoopA, LoopB, and LoopC, adopt stable folded structures. High-resolution crystal structures of LoopA and LoopB have been solved. LoopB adopts a structure very similar to the design model (0.46 Angstroms rmsd), and all but one of the side chains are modeled in the correct rotamers. LoopA crystallized at low pH in a structure that differs dramatically from our design model. It forms a strand-swapped dimer mediated by hydrogen bonds to protonated glutamic acids. Gel filtration indicates that the protein is not a dimer at neutral pH. These results suggest that the high-resolution design of protein loops is possible; however, they also highlight how small changes in protein energetics can dramatically perturb the low free energy structure of a protein.

Hu,X.; Wang, H.; Ke, H.; Kuhlman, B.

2007-01-01T23:59:59.000Z

495

A High Resolution Monolithic Crystal, DOI, MR Compatible, PET Detector  

SciTech Connect

The principle objective of this proposal is to develop a positron emission tomography (PET) detector with depth-of-interaction (DOI) positioning capability that will achieve state of the art spatial resolution and sensitivity performance for small animal PET imaging. When arranged in a ring or box detector geometry, the proposed detector module will support <1 mm3 image resolution and >15% absolute detection efficiency. The detector will also be compatible with operation in a MR scanner to support simultaneous multi-modality imaging. The detector design will utilize a thick, monolithic crystal scintillator readout by a two-dimensional array of silicon photomultiplier (SiPM) devices using a novel sensor on the entrance surface (SES) design. Our hypothesis is that our single-ended readout SES design will provide an effective DOI positioning performance equivalent to more expensive dual-ended readout techniques and at a significantly lower cost. Our monolithic crystal design will also lead to a significantly lower cost system. It is our goal to design a detector with state of the art performance but at a price point that is affordable so the technology can be disseminated to many laboratories. A second hypothesis is that using SiPM arrays, the detector will be able to operate in a MR scanner without any degradation in performance to support simultaneous PET/MR imaging. Having a co-registered MR image will assist in radiotracer localization and may also be used for partial volume corrections to improve radiotracer uptake quantitation. The far reaching goal of this research is to develop technology for medical research that will lead to improvements in human health care.

Robert S Miyaoka

2012-03-06T23:59:59.000Z

496

High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley  

Open Energy Info (EERE)

Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada Abstract N/A Author V. J. S. Grauch Published U.S. Geological Survey, 2002 Report Number 02-384 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada Citation V. J. S. Grauch. 2002. High-Resolution Aeromagnetic Survey to Image Shallow Faults, Dixie Valley Geothermal Field, Nevada. (!) : U.S. Geological Survey. Report No.: 02-384. Retrieved from "http://en.openei.org/w/index.php?title=High-Resolution_Aeromagnetic_Survey_to_Image_Shallow_Faults,_Dixie_Valley_Geothermal_Field,_Nevada&oldid=682601"

497

The High Time Resolution Spectral Evolution of Gamma-Ray Bursts  

E-Print Network (OSTI)

Previous studies of the evolution of gamma-ray burst spectra have generally relied on fitting sequences of spectra. These studies usually were confined to bright bursts and often lacked sufficient temporal resolution. We have developed techniques which sacrifice spectral resolution for temporal resolution. First, the crosscorrelations between intensity lightcurves in different energy bands allow for the classification of the spectral evolution of a large burst sample. Second, the energy correlation of pairs of counts places limits on short-duration, narrowband emission.

David Band; Lyle Ford

1997-11-27T23:59:59.000Z

498

2007 R&D 100 Award: Ultra-High-Resolution Mammography System...  

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

7 R&D 100 Awards: Ultra-High-Resolution Mammography System (UHRMS) Director's Welcome Organization Achievements Awards Patents Professional Societies Highlights Fact Sheets,...

499

Minimal free resolutions and Betti diagrams of the algebras of $SL_2$-invariants  

E-Print Network (OSTI)

For the algebras of $SL_2$-invariants of small homological dimension theirs minimal free graded resolutions and graded Betti diagrams calculated.

Bedratyuk, Leonid

2011-01-01T23:59:59.000Z

500

Action Plan and Status of Resolutions for LWRS Steering Committee Recommendations Dated August 13, 2009  

Science Conference Proceedings (OSTI)

The resolutions to the recommendations from the Report of the Steering Committee for the LWRS Program Dated August 13, 2009 are documented.

Hongbin Zhang

2009-08-01T23:59:59.000Z