Powered by Deep Web Technologies
Note: This page contains sample records for the topic "radar sample volume" 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.


1

Differences in radar derived rainfall amounts due to sampling intervals  

E-Print Network [OSTI]

DIFFERENCES IN RADAR DERIVED RAINFALL AMOUNTS DUE TO SAMPLING INTERVALS A Thesis by DAVID JAMES ZDENEK Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... December 1986 Major Subject: Meteorology DIFFERENCES IN RADAR DERIVED RAINFALL AMOUNTS DUE TO SAMPLING INTERVALS A Thesis by DAVID JAMES ZDENEK Approved as to style and content by: eorge L. Huebner (Chairman of Committee) CP~ CG~& Robert C...

Zdenek, David James

1986-01-01T23:59:59.000Z

2

E-Print Network 3.0 - asteroid radar astronomy Sample Search...  

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

radar astronomy Search Powered by Explorit Topic List Advanced Search Sample search results for: asteroid radar astronomy Page: << < 1 2 3 4 5 > >> 1 The Mechanics of Moving...

3

E-Print Network 3.0 - airborne doppler radar Sample Search Results  

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

during the austral summer. The study uses Doppler radar data... to understand this phenomenol- ogy because the convection was sampled by ship and aircraft Doppler radars over......

4

Scanning ARM Cloud Radars Part I: Operational Sampling Strategies  

SciTech Connect (OSTI)

Probing clouds in three-dimensions has never been done with scanning millimeter-wavelength (cloud) radars in a continuous operating environment. The acquisition of scanning cloud radars by the Atmospheric Radiation Measurement (ARM) program and research institutions around the world generate the need for developing operational scan strategies for cloud radars. Here, the first generation of sampling strategies for the Scanning ARM Cloud Radars (SACRs) is discussed. These scan strategies are designed to address the scientific objectives of the ARM program, however, they introduce an initial framework for operational scanning cloud radars. While the weather community uses scan strategies that are based on a sequence of scans at constant elevations, the SACRs scan strategies are based on a sequence of scans at constant azimuth. This is attributed to the cloud properties that are vastly different for rain and snow shafts that are the primary target of precipitation radars. A “cloud surveillance” scan strategy is introduced (HS-RHI) based on a sequence of horizon-to-horizon Range Height Indicator (RHI) scans that sample the hemispherical sky (HS). The HS-RHI scan strategy is repeated every 30 min to provide a static view of the cloud conditions around the SACR location. Between HS-RHI scan strategies other scan strategies are introduced depending on the cloud conditions. The SACRs are pointing vertically in the case of measurable precipitation at the ground. The radar reflectivities are corrected for water vapor attenuation and non-meteorological detection are removed. A hydrometeor detection mask is introduced based on the difference of cloud and noise statistics is discussed.

Kollias, Pavlos; Bharadwaj, Nitin; Widener, Kevin B.; Jo, Ieng; Johnson, Karen

2014-03-01T23:59:59.000Z

5

E-Print Network 3.0 - aperture radar 3d Sample Search Results  

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

3d Search Powered by Explorit Topic List Advanced Search Sample search results for: aperture radar 3d Page: << < 1 2 3 4 5 > >> 1 CHAPTER 9CHAPTER 9CHAPTER 9:CHAPTER 9: Active and...

6

E-Print Network 3.0 - airborne radar sounding Sample Search Results  

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

Radar Remote Sensing Summary: -Based Weather Radar Remote Sensing of Explosive Volcanic Ash Eruption Frank Silvio Marzano, Senior Member, IEEE... radars. These systems can provide...

7

E-Print Network 3.0 - atmospheric radar system Sample Search...  

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

atmospheric... the uncertainty in the relationship between the radar reflectivity and the rainwater mixing ratio, or radar system... of in real radar data processing ... Source:...

8

E-Print Network 3.0 - aperture radar capabilities Sample Search...  

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

SURVEILLANCE NEEDS Summary: -area and long- range aircraft surveillance and weather measurement capability is described and a radar network... to acquire replacement radars. The...

9

The Status of the ACRF Millimeter Wave Cloud Radars (MMCRs), the Path Forward for Future MMCR Upgrades, the Concept of 3D Volume Imaging Radar and the UAV Radar  

SciTech Connect (OSTI)

The United States (U.S.) Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Climate Research Facility (ACRF) operates millimeter wavelength cloud radars (MMCRs) in several climatological regimes. The MMCRs, are the primary observing tool for quantifying the properties of nearly all radiatively important clouds over the ACRF sites. The first MMCR was installed at the ACRF Southern Great Plains (SGP) site nine years ago and its original design can be traced to the early 90s. Since then, several MMCRs have been deployed at the ACRF sites, while no significant hardware upgrades have been performed. Recently, a two-stage upgrade (first C-40 Digital Signal Processors [DSP]-based, and later the PC-Integrated Radar AcQuisition System [PIRAQ-III] digital receiver) of the MMCR signal-processing units was completed. Our future MMCR related goals are: 1) to have a cloud radar system that continues to have high reliability and uptime and 2) to suggest potential improvements that will address increased sensitivity needs, superior sampling and low cost maintenance of the MMCRs. The Traveling Wave Tube (TWT) technology, the frequency (35-GHz), the radio frequency (RF) layout, antenna, the calibration and radar control procedure and the environmental enclosure of the MMCR remain assets for our ability to detect the profile of hydrometeors at all heights in the troposphere at the ACRF sites.

P Kollias; MA Miller; KB Widener; RT Marchand; TP Ackerman

2005-12-30T23:59:59.000Z

10

E-Print Network 3.0 - aperture radar intensity Sample Search...  

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

radar must have a large power-aperture product. Second, in order to obtain accurate wind velocities... arrays. The early radars could be pointed in only a few, Fig. 1. RHI...

11

E-Print Network 3.0 - advanced precipitation radar Sample Search...  

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

clutter Summary: of precipitation for every pixel in a Meteosat-8 scene. Via pixel-level image fusion of the radar data... and the Precipitating Clouds product, supervised...

12

E-Print Network 3.0 - airborne l-band radar Sample Search Results  

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

concept will utilize L-band radar and radiometer instruments sharing a rotating... measurement approach with the conically scanning ... Source: Montana, University of - School of...

13

E-Print Network 3.0 - aperture radar insar Sample Search Results  

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

. A further study demonstrated that the phase component of INSAR is only weakly affected by the real aperture... radar (RAR) modulation 12. On the other hand, under ......

14

E-Print Network 3.0 - aperture radar image Sample Search Results  

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

flight trajecto- In synthetic aperture radar (SAR) imaging a scene... -y(s). The projection data and reconstructed ... Source: Yazici, Birsen - Department of Electrical,...

15

E-Print Network 3.0 - avoid radar installations Sample Search...  

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

to 9o differences in flow directions. 1. INTRODUCTION We installed the first HF radar at Coal Oil... Evaluating radial component current measurements from CODAR high frequency...

16

TRU Waste Sampling Program: Volume I. Waste characterization  

SciTech Connect (OSTI)

Volume I of the TRU Waste Sampling Program report presents the waste characterization information obtained from sampling and characterizing various aged transuranic waste retrieved from storage at the Idaho National Engineering Laboratory and the Los Alamos National Laboratory. The data contained in this report include the results of gas sampling and gas generation, radiographic examinations, waste visual examination results, and waste compliance with the Waste Isolation Pilot Plant-Waste Acceptance Criteria (WIPP-WAC). A separate report, Volume II, contains data from the gas generation studies.

Clements, T.L. Jr.; Kudera, D.E.

1985-09-01T23:59:59.000Z

17

E-Print Network 3.0 - aperture radar sar Sample Search Results  

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

Clusters Jim Stiles, Nathan Goodman, and SiChung Lin Summary: of the overall SAR image. BACKGROUND A radar illuminating an area A of the Earth's surface will receive a complex......

18

E-Print Network 3.0 - acquisition regime radar Sample Search...  

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

except the data acquisition system and the controller unit... A New Coherent Radar for Ice Sounding in Greenland A. Moussessian 1 , R.L. Jordan 1 , E. Rodriguez... : (818)...

19

E-Print Network 3.0 - apparent specific volume Sample Search...  

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

of Z .sampling technique, specifically small- bottles and Zlarge-volume in situ pumps and large-volume... in samples collected using small- and large-volume methods: the...

20

E-Print Network 3.0 - australian defencescience volume Sample...  

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

defencescience volume Search Powered by Explorit Topic List Advanced Search Sample search results for: australian defencescience volume Page: << < 1 2 3 4 5 > >> 1 Call for papers...

Note: This page contains sample records for the topic "radar sample volume" 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

Federal Radiological Monitoring and Assessment Center Monitoring Manual Volume 2, Radiation Monitoring and Sampling  

SciTech Connect (OSTI)

The FRMAC Monitoring and Sampling Manual, Volume 2 provides standard operating procedures (SOPs) for field radiation monitoring and sample collection activities that are performed by the Monitoring group during a FRMAC response to a radiological emergency.

NSTec Aerial Measurement Systems

2012-07-31T23:59:59.000Z

22

Downhole pulse radar  

DOE Patents [OSTI]

A borehole logging tool generates a fast rise-time, short duration, high peak-power radar pulse having broad energy distribution between 30 MHz and 300 MHz through a directional transmitting and receiving antennas having barium titanate in the electromagnetically active region to reduce the wavelength to within an order of magnitude of the diameter of the antenna. Radar returns from geological discontinuities are sampled for transmission uphole. 7 figs.

Chang, Hsi-Tien

1987-09-28T23:59:59.000Z

23

Volume 2 Appendices: Sample Solicitation and Contracting Document  

SciTech Connect (OSTI)

Appendices for the report A Guide to Performance Contracting with ESCOs. The appendices include a sample solicitation and contracting document

Baechler, Michael C.

2011-09-01T23:59:59.000Z

24

ASSIMILATION OF DOPPLER RADAR DATA INTO NUMERICAL WEATHER MODELS  

SciTech Connect (OSTI)

During the year 2008, the United States National Weather Service (NWS) completed an eight fold increase in sampling capability for weather radars to 250 m resolution. This increase is expected to improve warning lead times by detecting small scale features sooner with increased reliability; however, current NWS operational model domains utilize grid spacing an order of magnitude larger than the radar data resolution, and therefore the added resolution of radar data is not fully exploited. The assimilation of radar reflectivity and velocity data into high resolution numerical weather model forecasts where grid spacing is comparable to the radar data resolution was investigated under a Laboratory Directed Research and Development (LDRD) 'quick hit' grant to determine the impact of improved data resolution on model predictions with specific initial proof of concept application to daily Savannah River Site operations and emergency response. Development of software to process NWS radar reflectivity and radial velocity data was undertaken for assimilation of observations into numerical models. Data values within the radar data volume undergo automated quality control (QC) analysis routines developed in support of this project to eliminate empty/missing data points, decrease anomalous propagation values, and determine error thresholds by utilizing the calculated variances among data values. The Weather Research and Forecasting model (WRF) three dimensional variational data assimilation package (WRF-3DVAR) was used to incorporate the QC'ed radar data into input and boundary conditions. The lack of observational data in the vicinity of SRS available to NWS operational models signifies an important data void where radar observations can provide significant input. These observations greatly enhance the knowledge of storm structures and the environmental conditions which influence their development. As the increase in computational power and availability has made higher resolution real-time model simulations possible, the need to obtain observations to both initialize numerical models and verify their output has become increasingly important. The assimilation of high resolution radar observations therefore provides a vital component in the development and utility of numerical model forecasts for both weather forecasting and contaminant transport, including future opportunities to improve wet deposition computations explicitly.

Chiswell, S.; Buckley, R.

2009-01-15T23:59:59.000Z

25

Ultra-wideband radar motion sensor  

DOE Patents [OSTI]

A motion sensor is based on ultra-wideband (UWB) radar. UWB radar range is determined by a pulse-echo interval. For motion detection, the sensors operate by staring at a fixed range and then sensing any change in the averaged radar reflectivity at that range. A sampling gate is opened at a fixed delay after the emission of a transmit pulse. The resultant sampling gate output is averaged over repeated pulses. Changes in the averaged sampling gate output represent changes in the radar reflectivity at a particular range, and thus motion. 15 figs.

McEwan, T.E.

1994-11-01T23:59:59.000Z

26

ARTIFACT FORMATION IN HIGH VOLUME SAMPLING OF VOC's AND SOLID ORGANIC COMPOUNDS.  

E-Print Network [OSTI]

when sampling polluted air. Purified air containing 180 ppbv ozone seems to destroy PAH according Atmospheriques, Boite 7059, UNIVERSITE PARIS 7, 2, place Jussieu, 75251 PARIS Cedex 05 ABSTRACT Pollutants from well äs solid (SOC's) organic compounds. High volume samplers are commonly used m air quality

Boyer, Edmond

27

Imaging synthetic aperture radar  

DOE Patents [OSTI]

A linear-FM SAR imaging radar method and apparatus to produce a real-time image by first arranging the returned signals into a plurality of subaperture arrays, the columns of each subaperture array having samples of dechirped baseband pulses, and further including a processing of each subaperture array to obtain coarse-resolution in azimuth, then fine-resolution in range, and lastly, to combine the processed subapertures to obtain the final fine-resolution in azimuth. Greater efficiency is achieved because both the transmitted signal and a local oscillator signal mixed with the returned signal can be varied on a pulse-to-pulse basis as a function of radar motion. Moreover, a novel circuit can adjust the sampling location and the A/D sample rate of the combined dechirped baseband signal which greatly reduces processing time and hardware. The processing steps include implementing a window function, stabilizing either a central reference point and/or all other points of a subaperture with respect to doppler frequency and/or range as a function of radar motion, sorting and compressing the signals using a standard fourier transforms. The stabilization of each processing part is accomplished with vector multiplication using waveforms generated as a function of radar motion wherein these waveforms may be synthesized in integrated circuits. Stabilization of range migration as a function of doppler frequency by simple vector multiplication is a particularly useful feature of the invention; as is stabilization of azimuth migration by correcting for spatially varying phase errors prior to the application of an autofocus process.

Burns, Bryan L. (Tijeras, NM); Cordaro, J. Thomas (Albuquerque, NM)

1997-01-01T23:59:59.000Z

28

An investigation of 3.2-cm attenuation by subtropical precipitation through use of a dual-frequency, equi-volume radar system  

E-Print Network [OSTI]

than an A-R visual technique, if it were not for the loss in accuracy caused by the measurement of P at r arbitrary gain step values, several dbms apart. Both radars were turned on at least one hour prior to calibration or data collection. Also...

Hodges, Donald Bartholomew

1966-01-01T23:59:59.000Z

29

Determination of the efficiency of a detector in gamma spectrometry of large-volume samples  

E-Print Network [OSTI]

The experimental - calculated method is proposed to determine the full energy peak efficiency (FEPE) of detectors {\\epsilon}(E) in case a measurement of the large-volume samples. Water is used as standard absorber in which the linear attenuation coefficients for photons {\\mu}0 (E) is well known. The value {\\mu} (E) in sample material (matrix of the sample) is determined experimentally by means of spectrometer. The formulas are given for calculation of the ratio {\\epsilon}(E)/ {\\epsilon}0(E), where {\\epsilon}0(E) is FEPE of the detector for photons those are arising in the container filled with water (it is found by adding in the container of the Reference radioactive solutions). To prove the validity of the method ethanol (density 0,8 g/cm3) and water solutions of salts (density 1,2 and 1,5 g/cm3) were used for simulation of the samples with different attenuation coefficients. Standard deviation between experimental and calculated efficiencies has been about 5 %.

E. G. Tertyshnik; A. T. Korsakov

2012-07-19T23:59:59.000Z

30

Determination of the efficiency of a detector in gamma spectrometry of large-volume samples  

E-Print Network [OSTI]

The experimental - calculated method is proposed to determine the full energy peak efficiency (FEPE) of detectors {\\epsilon}(E) in case a measurement of the large-volume samples. Water is used as standard absorber in which the linear attenuation coefficients for photons {\\mu}0 (E) is well known. The value {\\mu} (E) in sample material (matrix of the sample) is determined experimentally by means of spectrometer. The formulas are given for calculation of the ratio {\\epsilon}(E)/ {\\epsilon}0(E), where {\\epsilon}0(E) is FEPE of the detector for photons those are arising in the container filled with water (it is found by adding in the container of the Reference radioactive solutions). To prove the validity of the method ethanol (density 0,8 g/cm3) and water solutions of salts (density 1,2 and 1,5 g/cm3) were used for simulation of the samples with different attenuation coefficients. Standard deviation between experimental and calculated efficiencies has been about 5 %.

Tertyshnik, E G

2012-01-01T23:59:59.000Z

31

E-Print Network 3.0 - arterial lumen volume Sample Search Results  

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

PRIMING VOLUMES CATHETER FLUSHDISCARD VOLUMES Brand Size small (vol) large (vol) Brand... Size small large Tunneled Catheters Tunneled Catheters Bard Broviac (Single...

32

BOREHOLE RADAR ATTENUATION-DIFFERENCE TOMOGRAPHY DURING THE TRACER/TIME-LAPSE TEST AT THE BOISE  

E-Print Network [OSTI]

to those suggested by radar level run attenuation differences, shot-receiver attenuation difference be explained by the difference in support volumes for the radar and chemistry measurements, and alsoBOREHOLE RADAR ATTENUATION-DIFFERENCE TOMOGRAPHY DURING THE TRACER/TIME-LAPSE TEST AT THE BOISE

Barrash, Warren

33

Prospects of the WSR-88D Radar for Cloud Studies  

E-Print Network [OSTI]

Sounding of nonprecipitating clouds with the 10-cm wavelength Weather Surveillance Radar-1988 Doppler (WSR-88D) is discussed. Readily available enhancements to signal processing and volume coverage patterns of the WSR-88D allow observations of a...

Melnikov, Valery M.; Zrni?, Dusan S.; Doviak, Richard J.; Chilson, Phillip B.; Mechem, David B.; Kogan, Yefim L.

2011-04-01T23:59:59.000Z

34

E-Print Network 3.0 - acid volumizing filler Sample Search Results  

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

Use of Magnetic and Electrically Conductive Fillers in a Polymer Matrix for Electromagnetic Interference Shielding Summary: is at the maximum (10% by volume of base paint), as...

35

E-Print Network 3.0 - arterial pressure-volume relationship Sample...  

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

pressure-volume relationship Page: << < 1 2 3 4 5 > >> 1 In the simplest functional terms, closed circulatory systems such as those of vertebrates, crustaceans and cephalopod...

36

E-Print Network 3.0 - area washington volume Sample Search Results  

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

search results for: area washington volume Page: << < 1 2 3 4 5 > >> 1 WRRC Report No. 153 Water Resources Publications Summary: of Water Resources in Metropolitan Environments...

37

E-Print Network 3.0 - air volume air Sample Search Results  

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

Use Summary: pressure, and for modeling the change in system pressure as function of compressed air storage volume... important system variables such as system pressure and...

38

E-Print Network 3.0 - atrial volume measurement Sample Search...  

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

of atrial volume (Ro- botham et al., 1978; Matsuda et al... measured from the ECG by identifying the time of QRS ... Source: Glass, Leon - Department of Physiology,...

39

E-Print Network 3.0 - acute blood volume Sample Search Results  

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

Heart Disease: Overview 1 Killer in the U.S. Summary: is it measured? Sphygmomanometer Systolic blood pressure -Sensitive to volume of blood leaving the heart......

40

Simultaneous measurements of soot volume fraction and particle size/microstructure in flames using a thermophoretic sampling technique  

SciTech Connect (OSTI)

A new particle volume fraction measurement technique was developed using electron microscope analysis of thermophoretically sampled particles/aggregates based on a theoretical treatment of particle deposition to a cold surface immersed in a flame. This experimental method, referred to as the thermophoretic sampling particle diagnostic (TSPD), can yield all particle parameters of principal interest (particle volume fraction, particle and aggregate sizes, and fractal properties) without requiring knowledge of particle bulk density and refractive index. To assess its reliability, the TSPD technique was implemented at various heights on the centerline of a soot-containing coflowing ethylene/air nonpremixed laminar flame. Inferred soot volume fractions agreed with previous laser extinction and thermocouple particle densitometry measurements within experimental uncertainties at sampling positions where only aggregates of mature particles were present. However, TSPD-soot volume fractions were about a factor of 3 higher than light extinction results in the lower part of the flame. This significant difference was evidently a result of the presence of translucent precursor soot particles, which do not absorb as much visible light as mature particles, but can be quantified with the electron microscope. Clearly, this ability of TSPD to separately measure the concentration and morphology of each type of soot is a significant advantage over other available diagnostics, making it extremely valuable for studying particle formation in flames.

Koeylue, U.O.; McEnally, C.S.; Rosner, D.E.; Pfefferle, L.D. [Yale Univ., New Haven, CT (United States). Dept. of Chemical Engineering] [Yale Univ., New Haven, CT (United States). Dept. of Chemical Engineering

1997-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "radar sample volume" 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

E-Print Network 3.0 - analysis methods volume Sample Search Results  

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

Volume 12, Issue 1, pp. 29-37. N. Uno, F. Kurauchi, H. Tamura, et al., Using Bus Probe Data for Analysis... . Charpillet, A Road Matching Method for Precise Vehicle Localization...

42

E-Print Network 3.0 - automatic target volume Sample Search Results  

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

2005 2010 2015 Usable Specific Energy (kW hr kg) 1.3 0.8 10-17 15... tank, 500k production volume, optimized carbon, health monitored storage system. 12;Composite Pressure...

43

E-Print Network 3.0 - acute volume expansion Sample Search Results  

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

INVESTIGATION Cervix Summary: of an association between the volume of pelvic BM receiving low-dose radiation (V10, V20) and acute HT in patients... doi:10.1016j.ijrobp.2006.03.018...

44

Sandia National Laboratories: Radar Friendly Blades  

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

MitigationRadar Friendly Blades Radar Friendly Blades Some wind farms have the potential to cause interference with the normal operation of radar systems used for security, weather...

45

Wind Profiling by Doppler Weather Radar Iwan Holleman (holleman@knmi.nl)  

E-Print Network [OSTI]

Wind Profiling by Doppler Weather Radar Iwan Holleman (holleman@knmi.nl) Royal Netherlands wind profiles at a high temporal resolution. Several algorithms and quality ensuring procedures for the extraction of wind profiles from radar volume data have been published. A comparison and verification

Stoffelen, Ad

46

Operational Monitoring of Weather Radar Receiving Chain Using the Sun IWAN HOLLEMAN  

E-Print Network [OSTI]

Operational Monitoring of Weather Radar Receiving Chain Using the Sun IWAN HOLLEMAN Royal, is presented. The ``online'' method is entirely based on the analysis of sun signals in the polar volume data- termining the weather radar antenna pointing at low elevations using sun signals, and it is suited

Stoffelen, Ad

47

12B.4 2010 PHASEDARRAY RADAR INNOVATIVE SENSING EXPERIMENT Pam Heinselman 1  

E-Print Network [OSTI]

Sensing Experiment (PARISE) via two components: radar data collection and National Weather Service (NWS." This sampling approach provides denser sampling at low altitudes, where it is needed most. In PARISE 2010

48

A study of toxic emissions from a coal-fired power plant: Niles Station Boiler No. 2. Volume 1, Sampling/results/special topics: Final report  

SciTech Connect (OSTI)

This study was one of a group of assessments of toxic emissions from coal-fired power plants, conducted for US Department of Energy, Pittsburgh Energy Technology Center (DOE-PETC) during 1993. The motivation for those assessments was the mandate in the 1990 Clean Air Act Amendments that a study be made of emissions of hazardous air pollutants (HAPs) from electrical utilities. The results of this study will be used by the US Environmental Protection Agency to evaluate whether regulation of HAPs emissions from utilities is warranted. This report is organized in two volumes. Volume 1: Sampling/Results/Special Topics describes the sampling effort conducted as the basis for this study, presents the concentration data on toxic chemicals in the several power plant streams, and reports the results of evaluations and calculations conducted with those data. The Special Topics section of Volume 1 reports on issues such as comparison of sampling methods and vapor/particle distributions of toxic chemicals. Volume 2: Appendices include field sampling data sheets, quality assurance results, and uncertainty calculations. The chemicals measured at Niles Boiler No. 2 were the following: five major and 16 trace elements, including mercury, chromium, cadmium, lead, selenium, arsenic, beryllium, and nickel; acids and corresponding anions (HCl, HF, chloride, fluoride, phosphate, sulfate); ammonia and cyanide; elemental carbon; radionuclides; volatile organic compounds (VOC); semivolatile compounds (SVOC) including polynuclear aromatic hydrocarbons (PAH), and polychlorinated dioxins and furans; and aldehydes.

Not Available

1994-06-01T23:59:59.000Z

49

Millimeter Wave Cloud Radar (MMCR) Handbook  

SciTech Connect (OSTI)

The millimeter cloud radar (MMCR) systems probe the extent and composition of clouds at millimeter wavelengths. The MMCR is a zenith-pointing radar that operates at a frequency of 35 GHz. The main purpose of this radar is to determine cloud boundaries (e.g., cloud bottoms and tops). This radar will also report radar reflectivity (dBZ) of the atmosphere up to 20 km. The radar possesses a doppler capability that will allow the measurement of cloud constituent vertical velocities.

KB Widener; K Johnson

2005-01-30T23:59:59.000Z

50

Validation and determination of ice water content-radar reflectivity relationships during CRYSTAL-  

E-Print Network [OSTI]

an empirical IWC-radar relflectivity Ze relationship. The comparisons show that for measurements of in situ IWC and remotely measured radar reflectivity, collocated within 2 km of each other, a single IWC-Ze relationship this level of uncertainty to be consistent with sampling errors associated with comparing two measurements

51

A study of toxic emissions from a coal-fired power plant utilizing an ESP/Wet FGD system. Volume 1, Sampling, results, and special topics: Final report  

SciTech Connect (OSTI)

This was one of a group of assessments of toxic emissions from coal-fired power plants, conducted for DOE-PETC in 1993 as mandated by the 1990 Clean Air Act. It is organized into 2 volumes; Volume 1 describes the sampling effort, presents the concentration data on toxic chemicals in several power plant streams, and reports the results of evaluations and calculations. The study involved solid, liquid, and gaseous samples from input, output, and process streams at Coal Creek Station Unit No. 1, Underwood, North Dakota (1100 MW mine-mouth plant burning lignite from the Falkirk mine located adjacent to the plant). This plant had an electrostatic precipitator and a wet scrubber flue gas desulfurization unit. Measurements were conducted on June 21--24, 26, and 27, 1993; chemicals measured were 6 major and 16 trace elements (including Hg, Cr, Cd, Pb, Se, As, Be, Ni), acids and corresponding anions (HCl, HF, chloride, fluoride, phosphate, sulfate), ammonia and cyanide, elemental C, radionuclides, VOCs, semivolatiles (incl. PAH, polychlorinated dioxins, furans), and aldehydes. Volume 2: Appendices includes process data log sheets, field sampling data sheets, uncertainty calculations, and quality assurance results.

Not Available

1994-07-01T23:59:59.000Z

52

Overview of Radar Data Compression Valliappa Lakshmanan  

E-Print Network [OSTI]

of radar data is 1km in range and approximately 1 degree in azimuth. 1.1 Size The raw radar data ("Level I are distributed as "moment" data, called Level II. The Level II data comprises a value of radar reflectivity, velocity toward/away from the radar and spectrum width (a measure of the spread of velocity values

Lakshmanan, Valliappa

53

ARM Climate Research Facility Radar Operations Plan  

SciTech Connect (OSTI)

Roles, responsibilities, and processes associated with Atmospheric Radiation Measurement (ARM) Radar Operations.

Voyles, JW

2012-05-18T23:59:59.000Z

54

E-Print Network 3.0 - attenuates expression levels Sample Search...  

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

Collection: Geosciences 4 Chapter 6: AttenuationChapter 6: Attenuation In deriving the radar equation in Chapter 4, we assumed that the distance between the volume and the...

55

Site plan safety submission for sampling, monitoring, decontamination of GB agent - north plant Rocky Mountain Arsenal. Volume 2  

SciTech Connect (OSTI)

During TVA's visit and survey of RMA's GB facility, sample points were identified (Table A-1). The sample points initially identified were from Buildings 1501, 1503, 1603, 1506, 1601, 1601A, and 1602. Piping isometrics were produced for each sample point identified and are shown in Appendix B. After a careful review of each sample point and discussions with RMA personnel, 67 of the original sample points were eliminated. The sample points eliminated consisted of all ventilation points and process equipment/piping that is open to the atmosphere.

Not Available

1988-10-01T23:59:59.000Z

56

Radar polarimetry for geoscience applications  

SciTech Connect (OSTI)

A source book for remote sensing and radar design engineers, this text covers wave polarization, polarization synthesis, scattering matrices, SAR polarization systems, and an array of applications It covers: an introduction to the different mathematical representations used to describe scattering properties, a review of scatterometer system design and calibration techniques for use in polarimetric measurements, a study of specific polarimetric radar systems, such as the shuttle imaging radar C (SIR-C), that includes calibration and compression techniques, data processing guidelines, and design approaches.

Elachi, C.; Kuga, Y.; McDonald, K.; Sarabandi, K.; Ulaby, F.T.; Whitt, M.; Zebker, H.; van Zyl, J.J.

1990-01-01T23:59:59.000Z

57

Ground Penetrating Radar, Barrow, Alaska  

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

This is 500 MHz Ground Penetrating Radar collected along the AB Line in Intensive Site 1 beginning in October 2012 and collected along L2 in Intensive Site 0 beginning in September 2011. Both continue to the present.

John Peterson

58

Innovative coke oven gas cleaning system for retrofit applications. Environmental Monitoring program. Volume 1 - sampling progrom report. Baseline Sampling Program report  

SciTech Connect (OSTI)

Bethlehem Steel Corporation (BSC), in conjunction with the Department of Energy (DOE) is conducting a Clean Coal Technology (CCT) project at its Sparrows Point, Maryland Coke Oven Plant. This innovative coke oven gas cleaning system combines several existing technologies into an integrated system for removing impurities from Coke Oven Gas (COG) to make it an acceptable fuel. DOE provided cost-sharing under a Cooperative Agreement with BSC. This Cooperative Agreement requires BSC to develop and conduct and Environmental Monitoring Plan for the Clean Coal Technology project and to report the status of the EMP on a quarterly basis. It also requires the preparation of a final report on the results of the Baseline Compliance and Supplemental Sampling Programs that are part of the EMP and which were conducted prior to the startup of the innovative coke oven gas cleaning system. This report is the Baseline Sampling Program report.

Stuart, L.M.

1994-05-27T23:59:59.000Z

59

Site plan safety submission for sampling, monitoring, decontamination of GB agent - north plant Rocky Mountain Arsenal. Volume 1  

SciTech Connect (OSTI)

The scope of this site plan safety submission (SPSS), includes: sampling plan to determine if GB is a contaminant in equipment and piping used in the production and demil processes; monitoring plan for personnel involved in the sampling effort; decon plan for personnel, equipment, and piping should contamination be identified. Additional sections and appendices include: historical use of bldg 1501, 1503, 1504, 1506, 1601, 1602, 1603, 1606; chemical information on GB; safety requirements; medical requirements and first aid procedures; piping drawings; rma sop's for sampling, monitoring, and decon.

Not Available

1988-10-01T23:59:59.000Z

60

Signal processing for airborne bistatic radar   

E-Print Network [OSTI]

The major problem encountered by an airborne bistatic radar is the suppression of bistatic clutter. Unlike clutter echoes for a sidelooking airborne monostatic radar, bistatic clutter echoes are range dependent. Using ...

Ong, Kian P

Note: This page contains sample records for the topic "radar sample volume" 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

Antarctic Mapping Project ACTIVE RADAR CALIBRATOR  

E-Print Network [OSTI]

RADARSAT Antarctic Mapping Project ACTIVE RADAR CALIBRATOR INSTALLATION DOCUMENT October, 1999 ENVIRONMENTAL RESEARCH INSTITUTE OF MICHIGAN CENTER FOR EARTH SCIENCES ALASKA SAR FACILITY BYRD POLAR RESEARCH...................................................................................................................................................3 Active Radar Calibrator Testing

Howat, Ian M.

62

GMTI radar minimum detectable velocity.  

SciTech Connect (OSTI)

Minimum detectable velocity (MDV) is a fundamental consideration for the design, implementation, and exploitation of ground moving-target indication (GMTI) radar imaging modes. All single-phase-center air-to-ground radars are characterized by an MDV, or a minimum radial velocity below which motion of a discrete nonstationary target is indistinguishable from the relative motion between the platform and the ground. Targets with radial velocities less than MDV are typically overwhelmed by endoclutter ground returns, and are thus not generally detectable. Targets with radial velocities greater than MDV typically produce distinct returns falling outside of the endoclutter ground returns, and are thus generally discernible using straightforward detection algorithms. This document provides a straightforward derivation of MDV for an air-to-ground single-phase-center GMTI radar operating in an arbitrary geometry.

Richards, John Alfred

2011-04-01T23:59:59.000Z

63

Scanning ARM Cloud Radar Handbook  

SciTech Connect (OSTI)

The scanning ARM cloud radar (SACR) is a polarimetric Doppler radar consisting of three different radar designs based on operating frequency. These are designated as follows: (1) X-band SACR (X-SACR); (2) Ka-band SACR (Ka-SACR); and (3) W-band SACR (W-SACR). There are two SACRs on a single pedestal at each site where SACRs are deployed. The selection of the operating frequencies at each deployed site is predominantly determined by atmospheric attenuation at the site. Because RF attenuation increases with atmospheric water vapor content, ARM's Tropical Western Pacific (TWP) sites use the X-/Ka-band frequency pair. The Southern Great Plains (SGP) and North Slope of Alaska (NSA) sites field the Ka-/W-band frequency pair. One ARM Mobile Facility (AMF1) has a Ka/W-SACR and the other (AMF2) has a X/Ka-SACR.

Widener, K; Bharadwaj, N; Johnson, K

2012-06-18T23:59:59.000Z

64

The Use of Radar Methods to Determine Moisture Content in the Vadose Zone  

SciTech Connect (OSTI)

Moisture content is a critical parameter affecting both liquid-phase and vapor-phase contaminant transport in the vadose zone. The objective of our three-year research project is to determine the optimal way to use of radar methods--both surface and borehole--as a noninvasive means of determining in situ moisture content. In our research we focus on two specific aspects of the link between radar images and moisture content. The first question we address is: Can we use a measure of the dielectric constant of a volume of the subsurface to determine the moisture content of that volume? The second question we address is: Can we use the radar data to characterize the spatial variability in moisture content?

Knight, Rosemary

2001-06-01T23:59:59.000Z

65

Synthetic aperture radar processing with tiered subapertures  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) is used to form images that are maps of radar reflectivity of some scene of interest, from range soundings taken over some spatial aperture. Additionally, the range soundings are typically synthesized from a sampled frequency aperture. Efficient processing of the collected data necessitates using efficient digital signal processing techniques such as vector multiplies and fast implementations of the Discrete Fourier Transform. Inherent in image formation algorithms that use these is a trade-off between the size of the scene that can be acceptably imaged, and the resolution with which the image can be made. These limits arise from migration errors and spatially variant phase errors, and different algorithms mitigate these to varying degrees. Two fairly successful algorithms for airborne SARs are Polar Format processing, and Overlapped Subaperture (OSA) processing. This report introduces and summarizes the analysis of generalized Tiered Subaperture (TSA) techniques that are a superset of both Polar Format processing and OSA processing. It is shown how tiers of subapertures in both azimuth and range can effectively mitigate both migration errors and spatially variant phase errors to allow virtually arbitrary scene sizes, even in a dynamic motion environment.

Doerry, A.W. [Sandia National Labs., Albuquerque, NM (United States). Synthetic Aperture Radar Dept.

1994-06-01T23:59:59.000Z

66

Laser- and Radar-based Mission Concepts for Suborbital and Spaceborne Monitoring of Seismic Surface Waves  

SciTech Connect (OSTI)

The development of a suborbital or spaceborne system to monitor seismic waves poses an intriguing prospect for advancing the state of seismology. This capability would enable an unprecedented global mapping of the velocity structure of the earth's crust, understanding of earthquake rupture dynamics and wave propagation effects, and event source location, characterization and discrimination that are critical for both fundamental earthquake research and nuclear non-proliferation applications. As part of an ongoing collaboration between LLNL and JPL, an advanced mission concept study assessed architectural considerations and operational and data delivery requirements, extending two prior studies by each organization--a radar-based satellite system (JPL) for earthquake hazard assessment and a feasibility study of space- or UAV-based laser seismometer systems (LLNL) for seismic event monitoring. Seismic wave measurement requirements include lower bounds on detectability of specific seismic sources of interest and wave amplitude accuracy for different levels of analysis, such as source characterization, discrimination and tomography, with a 100 {micro}m wave amplitude resolution for waves nominally traveling 5 km/s, an upper frequency bound based on explosion and earthquake surface displacement spectra, and minimum horizontal resolution (1-5 km) and areal coverage, in general and for targeted observations. For a radar system, corresponding engineering and operational factors include: Radar frequency (dictated by required wave amplitude measurement accuracy and maximizing ranging, Doppler or interferometric sensitivity), time sampling (maximum seismic wave frequency and velocity), and overall system considerations such as mass, power and data rate. Technical challenges include characterization of, and compensation for, phase distortion resulting from atmospheric and ionospheric perturbations and turbulence, and effects of ground scattering characteristics and seismic ground motion on phase coherence over interferometric time intervals. Since the temporal sampling requirement may be finer than that possible for a high-altitude sensor to traverse a synthetic aperture length, a geostationary, real-aperture Ka-band system or constellation for equatorial and moderate-latitude global coverage is one option considered. The short wavelength would maximize interferometric sensitivity to small surface displacements and minimize required antenna area. Engineering issues include the design and deployment of a large ({approx} 100m) fixed aperture antenna; and fast electronic beam steering (entire aperture within nominal 1 s interferometric interval) with high-efficiency integrated transmit/receive modules. For a suborbital system, platform instability is an issue whereas at high earth orbit signal-to-noise and attendant power requirements dominate. Data delivery requirements include large-volume data storage and transmission; development of real-time, on-board event detection and processing algorithms, and data management structures for these very large data sets. A far-term roadmap would comprise a proof-of-concept demonstration using a laser or radar system mounted on a stratospheric balloon or UAV to image seismic wavefields from planned events (e.g. large mine blasts and/or purpose-designed explosions) and earthquake targets of opportunity. The technological challenges to developing any such seismic monitoring system, whether laser- or radar-based, are at this stage enormous. However, these concept studies suggest the long-term feasibility of such a system and drive the development of enabling technologies while fostering collaboration on meeting scientific and operational challenges of agencies such as NASA, DOE and DoD.

Foxall, W; Schultz, C A; Tralli, D M

2004-09-21T23:59:59.000Z

67

Two terminal micropower radar sensor  

DOE Patents [OSTI]

A simple, low power ultra-wideband radar motion sensor/switch configuration connects a power source and load to ground. The switch is connected to and controlled by the signal output of a radar motion sensor. The power input of the motion sensor is connected to the load through a diode which conducts power to the motion sensor when the switch is open. A storage capacitor or rechargeable battery is connected to the power input of the motion sensor. The storage capacitor or battery is charged when the switch is open and powers the motion sensor when the switch is closed. The motion sensor and switch are connected between the same two terminals between the source/load and ground. 3 figs.

McEwan, T.E.

1995-11-07T23:59:59.000Z

68

Two terminal micropower radar sensor  

DOE Patents [OSTI]

A simple, low power ultra-wideband radar motion sensor/switch configuration connects a power source and load to ground. The switch is connected to and controlled by the signal output of a radar motion sensor. The power input of the motion sensor is connected to the load through a diode which conducts power to the motion sensor when the switch is open. A storage capacitor or rechargeable battery is connected to the power input of the motion sensor. The storage capacitor or battery is charged when the switch is open and powers the motion sensor when the switch is closed. The motion sensor and switch are connected between the same two terminals between the source/load and ground.

McEwan, Thomas E. (Livermore, CA)

1995-01-01T23:59:59.000Z

69

Radar range measurements in the atmosphere.  

SciTech Connect (OSTI)

The earth's atmosphere affects the velocity of propagation of microwave signals. This imparts a range error to radar range measurements that assume the typical simplistic model for propagation velocity. This range error is a function of atmospheric constituents, such as water vapor, as well as the geometry of the radar data collection, notably altitude and range. Models are presented for calculating atmospheric effects on radar range measurements, and compared against more elaborate atmospheric models.

Doerry, Armin Walter

2013-02-01T23:59:59.000Z

70

Radar network communication through sensing of frequency hopping  

DOE Patents [OSTI]

In one embodiment, a radar communication system includes a plurality of radars having a communication range and being capable of operating at a sensing frequency and a reporting frequency, wherein the reporting frequency is different than the sensing frequency, each radar is adapted for operating at the sensing frequency until an event is detected, each radar in the plurality of radars has an identification/location frequency for reporting information different from the sensing frequency, a first radar of the radars which senses the event sends a reporting frequency corresponding to its identification/location frequency when the event is detected, and all other radars in the plurality of radars switch their reporting frequencies to match the reporting frequency of the first radar upon detecting the reporting frequency switch of a radar within the communication range. In another embodiment, a method is presented for communicating information in a radar system.

Dowla, Farid; Nekoogar, Faranak

2013-05-28T23:59:59.000Z

71

Radar Testbed Characterization for Evaluation of Modulated Scatterer Concepts  

E-Print Network [OSTI]

The following research explores the concepts of communication-embedded radar with an emphasis on radar operation and modulated scatterer concepts. Once firmly established the concept of communication via radar backscatter ...

Casper, Matt

2010-05-27T23:59:59.000Z

72

Radar remote sensing of the lower atmosphere  

E-Print Network [OSTI]

from a numerical weather prediction (NWP) model is examined.numerical weather prediction and empirical site-specific radar clutter models,”

Karimian, Ali

2012-01-01T23:59:59.000Z

73

Sandia National Laboratories: TTU Advanced Doppler Radar  

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

rotor sweep. Doppler radar technologies and techniques developed at TTU have the potential to revolutionize wind energy generation by providing comprehensive information...

74

The Use of Radar Methods to Determine Moisture Content in the Vadose Zone  

SciTech Connect (OSTI)

Water content is a critical parameter affecting both liquid-phase and vapor-phase contaminant transport in the vadose zone. This means that accurate estimates of in situ water content must be obtained in order to design for the appropriate handling or remediation of a contaminated region of the vadose zone. Traditional methods of sampling the subsurface by drilling and/or direct sampling are very time consuming, limited in terms of spatial coverage, and have the associated risk of contacting and increasing the size of the contaminated area. One solution is to use geophysical methods which can provide a high-resolution, non-invasive means of sampling or imaging the subsurface. The overall objective of our research, defined at the start of this project, was to advance the usefulness of radar methods (ground-based and borehole) as a means of characterizing water content in the vadose zone. We have met this objective by providing research results that can be used to (1) improve the accuracy of water content estimates from radar measurements; (2) provide estimates of the potential error in water content estimates from radar measurements; (3) improve the clarity of radar images; (4) develop large-scale models of the subsurface ''architecture'' using radar images; (5) develop ways of quantifying the spatial heterogeneity of the subsurface through analysis of radar images. We have also been able to identify the critical areas where more research is needed in order to be able to use radar methods most effectively as an accurate means of subsurface characterization.

Rosemary Knight

2003-12-28T23:59:59.000Z

75

Ultra-wideband radar sensors and networks  

DOE Patents [OSTI]

Ultra wideband radar motion sensors strategically placed in an area of interest communicate with a wireless ad hoc network to provide remote area surveillance. Swept range impulse radar and a heart and respiration monitor combined with the motion sensor further improves discrimination.

Leach, Jr., Richard R; Nekoogar, Faranak; Haugen, Peter C

2013-08-06T23:59:59.000Z

76

Magneto-Radar Hidden Metal Detector  

DOE Patents [OSTI]

A varying magnetic field excites slight vibrations in an object and a radar sensor detects the vibrations at a harmonic of the excitation frequency. The synergy of the magnetic excitation and radar detection provides increased detection range compared to conventional magnetic metal detectors. The radar rejects background clutter by responding only to reflecting objects that are vibrating at a harmonic excitation field, thereby significantly improving detection reliability. As an exemplary arrangement, an ultra-wideband micropower impulse radar (MIR) is capable of being employed to provide superior materials penetration while providing range information. The magneto-radar may be applied to pre-screening magnetic resonance imaging (MRI) patients, landmine detection and finding hidden treasures.

McEwan, Thomas E. (Las Vegas, NV)

2005-07-05T23:59:59.000Z

77

Computing the apparent centroid of radar targets  

SciTech Connect (OSTI)

A high-frequency multibounce radar scattering code was used as a simulation platform for demonstrating an algorithm to compute the ARC of specific radar targets. To illustrate this simulation process, several targets models were used. Simulation results for a sphere model were used to determine the errors of approximation associated with the simulation; verifying the process. The severity of glint induced tracking errors was also illustrated using a model of an F-15 aircraft. It was shown, in a deterministic manner, that the ARC of a target can fall well outside its physical extent. Finally, the apparent radar centroid simulation based on a ray casting procedure is well suited for use on most massively parallel computing platforms and could lead to the development of a near real-time radar tracking simulation for applications such as endgame fuzing, survivability, and vulnerability analyses using specific radar targets and fuze algorithms.

Lee, C.E.

1996-12-31T23:59:59.000Z

78

Monostatic Coherent Radar Sea Clutter Doppler Analysis Matthew Ritchie  

E-Print Network [OSTI]

measurements are potentially ambiguous. Both the PRF and radio frequency used by the radar system are agile to define what PFA the radar system will experience for a given threshold level. This defines the radarsMonostatic Coherent Radar Sea Clutter Doppler Analysis Matthew Ritchie University College London

Haddadi, Hamed

79

Observations of colocated optical and radar aurora H. Bahcivan,1  

E-Print Network [OSTI]

Observations of colocated optical and radar aurora H. Bahcivan,1 D. L. Hysell,2 D. Lummerzheim,3 M of the E region radar aurora obtained with a 30 MHz imaging radar and the optical aurora (green line, the radar aurora in the vicinity of a stable evening auroral arc arises because of the arc's polarization

Lummerzheim, Dirk

80

Development of the Solid State X-band Radar and the Phased Array Radar System in Japan  

E-Print Network [OSTI]

Development of the Solid State X-band Radar and the Phased Array Radar System in Japan By DR. TOMOO array radar system have been developed. Toshiba has developed the latest model of weather radar of precipitation and to achieve drastic reduction of its size and life cycle cost. It is now well known

Droegemeier, Kelvin K.

Note: This page contains sample records for the topic "radar sample volume" 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

Measuring soil moisture with imaging radars  

SciTech Connect (OSTI)

An empirical algorithm for the retrieval of soil moisture content and surface Root Mean Square (RMS) height from remotely sensed radar data was developed using scatterometer data. The algorithm is optimized for bare surfaces and requires two copolarized channels at a frequency between 1.5 and 11 GHz. It gives best results for kh {le} 2.5, {mu}{sub {upsilon}}{le}35%, and {theta}{ge}30{degree}. Omitting the usually weaker hv-polarized returns makes the algorithm less sensitive to system cross-talk and system noise, simplify the calibration process and adds robustness to the algorithm in the presence of vegetation. However, inversion results indicate that significant amounts of vegetation (NDVI>0.4) cause the algorithm to underestimate soil moisture and overestimate RMS height. A simple criteria based on the {sigma}{sub hv}{sup 0}/{sigma}{sub vv}{sup 0} ratio is developed to select the areas where the inversion is not impaired by the vegetation. The inversion accuracy is assessed on the original scatterometer data sets but also on several SAR data sets by comparing the derived soil moisture values with in-situ measurements collected over a variety of scenes between 1991 and 1994. Both spaceborne (SIR-C) and airborne (AIRSAR) data are used in the test. Over this large sample of conditions, the RMS error in the soil moisture estimate is found to be less than 4.2% soil moisture.

Dubois, P.C.; Zyl, J. van [California Inst. of Tech., Pasadena, CA (United States). Jet Propulsion Lab.] [California Inst. of Tech., Pasadena, CA (United States). Jet Propulsion Lab.; Engman, T. [NASA Goddard Space Flight Center, Greenbelt, MD (United States)] [NASA Goddard Space Flight Center, Greenbelt, MD (United States)

1995-07-01T23:59:59.000Z

82

Using doppler radar images to estimate aircraft navigational heading error  

DOE Patents [OSTI]

A yaw angle error of a motion measurement system carried on an aircraft for navigation is estimated from Doppler radar images captured using the aircraft. At least two radar pulses aimed at respectively different physical locations in a targeted area are transmitted from a radar antenna carried on the aircraft. At least two Doppler radar images that respectively correspond to the at least two transmitted radar pulses are produced. These images are used to produce an estimate of the yaw angle error.

Doerry, Armin W. (Albuquerque, NM); Jordan, Jay D. (Albuquerque, NM); Kim, Theodore J. (Albuquerque, NM)

2012-07-03T23:59:59.000Z

83

Iterative synthetic aperture radar imaging algorithms   

E-Print Network [OSTI]

Synthetic aperture radar is an important tool in a wide range of civilian and military imaging applications. This is primarily due to its ability to image in all weather conditions, during both the day and the night, ...

Kelly, Shaun Innes

2014-06-30T23:59:59.000Z

84

Radar investigation of the Hockley salt dome  

E-Print Network [OSTI]

: Geophysics RADAR INVESTIGATION OF THE HOCKLEY SALT DOME A Thesis by UAMES ANDREW HLUCHANEK A'pproved as to style and content by: (Head of Departme t ? Member) May 1. 973 ABSTRACT Radar investigation of the Hockley Salt Dome. . (Nay, 1973) James.... THE PROBLEM. Page A. Probing into Unknown Areas in Salt. . B. Equipment Used. II. BACKGROUND MATERIAL. A. Geology of the Hockley Area. . . B. Economic History of the Hockley Dome Area. . 6 1. Oil 2. Gypsum. 3. Salt C. Geophysical Surveys Over...

Hluchanek, James Andrew

1973-01-01T23:59:59.000Z

85

Short range, ultra-wideband radar with high resolution swept range gate  

DOE Patents [OSTI]

A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with a typical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control.

McEwan, Thomas E. (Livermore, CA)

1998-05-26T23:59:59.000Z

86

Short range, ultra-wideband radar with high resolution swept range gate  

DOE Patents [OSTI]

A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with a typical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control. 14 figs.

McEwan, T.E.

1998-05-26T23:59:59.000Z

87

Phase coded, micro-power impulse radar motion sensor  

DOE Patents [OSTI]

A motion sensing, micro-power impulse radar MIR impresses on the transmitted signal, or the received pulse timing signal, one or more frequencies lower than the pulse repetition frequency, that become intermediate frequencies in a ``IF homodyne`` receiver. Thus, many advantages of classical RF receivers can be thereby be realized with ultra-wide band radar. The sensor includes a transmitter which transmits a sequence of electromagnetic pulses in response to a transmit timing signal at a nominal pulse repetition frequency. A receiver samples echoes of the sequence of electromagnetic pulses from objects within the field with controlled timing, in response to a receive timing signal, and generates a sample signal in response to the samples. A timing circuit supplies the transmit timing signal to the transmitter and supplies the receive timing signal to the receiver. The relative timing of the transmit timing signal and the receive timing signal is modulated between a first relative delay and a second relative delay at an intermediate frequency, causing the receiver to sample the echoes such that the time between transmissions of pulses in the sequence and samples by the receiver is modulated at the intermediate frequency. Modulation may be executed by modulating the pulse repetition frequency which drives the transmitter, by modulating the delay circuitry which controls the relative timing of the sample strobe, or by modulating amplitude of the transmitted pulses. The electromagnetic pulses will have a nominal center frequency related to pulse width, and the first relative delay and the second relative delay between which the timing signals are modulated, differ by less than the nominal pulse width, and preferably by about one-quarter wavelength at the nominal center frequency of the transmitted pulses. 5 figs.

McEwan, T.E.

1996-05-21T23:59:59.000Z

88

Phase coded, micro-power impulse radar motion sensor  

DOE Patents [OSTI]

A motion sensing, micro-power impulse radar MIR impresses on the transmitted signal, or the received pulse timing signal, one or more frequencies lower than the pulse repetition frequency, that become intermediate frequencies in a "IF homodyne" receiver. Thus, many advantages of classical RF receivers can be thereby be realized with ultra-wide band radar. The sensor includes a transmitter which transmits a sequence of electromagnetic pulses in response to a transmit timing signal at a nominal pulse repetition frequency. A receiver samples echoes of the sequence of electromagnetic pulses from objects within the field with controlled timing, in response to a receive timing signal, and generates a sample signal in response to the samples. A timing circuit supplies the transmit timing signal to the transmitter and supplies the receive timing signal to the receiver. The relative timing of the transmit timing signal and the receive timing signal is modulated between a first relative delay and a second relative delay at an intermediate frequency, causing the receiver to sample the echoes such that the time between transmissions of pulses in the sequence and samples by the receiver is modulated at the intermediate frequency. Modulation may be executed by modulating the pulse repetition frequency which drives the transmitter, by modulating the delay circuitry which controls the relative timing of the sample strobe, or by modulating amplitude of the transmitted pulses. The electromagnetic pulses will have a nominal center frequency related to pulse width, and the first relative delay and the second relative delay between which the timing signals are modulated, differ by less than the nominal pulse width, and preferably by about one-quarter wavelength at the nominal center frequency of the transmitted pulses.

McEwan, Thomas E. (Livermore, CA)

1996-01-01T23:59:59.000Z

89

Ground Penetrating Radar in Hydrogeophysics  

SciTech Connect (OSTI)

To meet the needs of a growing population and to provide us with a higher quality of life, increasing pressures are being placed on our environment through the development of agriculture, industry, and infrastructures. Soil erosion, groundwater depletion, salinization, and pollution have been recognized for decades as major threats to ecosystems and human health. More recently, the progressive substitution of fossil fuels by biofuels for energy production and climate change have been recognized as potential threats to our water resources and sustained agricultural productivity. The vadose zone mediates many of the processes that govern water resources and quality, such as the partition of precipitation into infiltration and runoff , groundwater recharge, contaminant transport, plant growth, evaporation, and energy exchanges between the Earth's surface and its atmosphere. It also determines soil organic carbon sequestration and carbon-cycle feedbacks, which could substantially impact climate change. The vadose zone's inherent spatial variability and inaccessibility precludes direct observation of the important subsurface processes. In a societal context where the development of sustainable and optimal environmental management strategies has become a priority, there is a strong prerequisite for the development of noninvasive characterization and monitoring techniques of the vadose zone. In particular, hydrogeophysical approaches applied at relevant scales are required to appraise dynamic subsurface phenomena and to develop optimal sustainability, exploitation, and remediation strategies. Among existing geophysical techniques, ground penetrating radar (GPR) technology is of particular interest for providing high-resolution subsurface images and specifically addressing water-related questions. Ground penetrating radar is based on the transmission and reception of VHF-UHF (30-3000 MHz) electromagnetic waves into the ground, whose propagation is determined by the soil electromagnetic properties and their spatial distribution. As the dielectric permittivity of water overwhelms the permittivity of other soil components, the presence of water in the soil principally governs GPR wave propagation. Therefore, GPR-derived dielectric permittivity is usually used as surrogate measure for soil water content. In the areas of unsaturated zone hydrology and water resources, GPR has been used to identify soil stratigraphy, to locate water tables, to follow wetting front movement, to estimate soil water content, to assist in subsurface hydraulic parameter identification, to assess soil salinity, and to support the monitoring of contaminants. The purpose of this special section of the Vadose Zone Journal is to present recent research advances and applications of GPR in hydrogeophysics, with a particular emphasis on vadose zone investigations. This special section includes contributions presented at the European Geosciences Union General Assembly 2006 (EGU 2006, Vienna, Austria) and the 11th International Conference on Ground Penetrating Radar (GPR 2006, Columbus, OH). The studies presented here deal with a wide range of surface and borehole GPR applications, including GPR sensitivity to contaminant plumes, new methods for soil water content determination, three-dimensional imaging of the subsurface, time-lapse monitoring of hydrodynamic events and inversion techniques for soil hydraulic properties estimation, and joint interpretation of GPR and electric resistivity tomography (ERT) data.

Hubbard, Susan; Lambot, S.; Binley, A.; Slob, E.; Hubbard, S.

2008-01-15T23:59:59.000Z

90

Sample Observations from the 2001.Multi-Frequency Radar IOP  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0 ResourceAwardsSafeguards and SecuritySafety SaltAliquam

91

A study of toxic emissions from a coal-fired power plant utilizing the SNOX innovative clean coal technology demonstration. Volume 1, Sampling/results/special topics: Final report  

SciTech Connect (OSTI)

This study was one of a group of assessments of toxic emissions from coal-fired power plants, conducted for DOE during 1993. The motivation for those assessments was the mandate in the 1990 Clean Air Act Amendments that a study be made of emissions of hazardous air pollutants (HAPs) from electric utilities. The report is organized in two volumes. Volume 1: Sampling describes the sampling effort conducted as the basis for this study; Results presents the concentration data on HAPs in the several power plant streams, and reports the results of evaluations and calculations conducted with those data; and Special Topics report on issues such as comparison of sampling methods and vapor/solid distributions of HAPs. Volume 2: Appendices include quality assurance/quality control results, uncertainty analysis for emission factors, and data sheets. This study involved measurements of a variety of substances in solid, liquid, and gaseous samples from input, output, and process streams at the Innovative Clean Coal Technology Demonstration (ICCT) of the Wet Sulfuric Acid-Selective Catalytic Reduction (SNOX) process. The SNOX demonstration is being conducted at Ohio Edison`s Niles Boiler No. 2 which uses cyclone burners to burn bituminous coal. A 35 megawatt slipstream of flue gas from the boiler is used to demonstrate SNOX. The substances measured at the SNOX process were the following: 1. Five major and 16 trace elements, including mercury, chromium, cadmium, lead, selenium, arsenic, beryllium, and nickel; 2. Acids and corresponding anions (HCl, HF, chloride, fluoride, phosphate, sulfate); 3. Ammonia and cyanide; 4. Elemental carbon; 5. Radionuclides; 6. Volatile organic compounds (VOC); 7. Semi-volatile compounds (SVOC) including polynuclear aromatic hydrocarbons (PAH); and 8. Aldehydes.

Not Available

1994-07-01T23:59:59.000Z

92

Analysis of water and soil from the wetlands of Upper Three Runs Creek. Volume 2A, Analytical data packages September--October 1991 sampling  

SciTech Connect (OSTI)

Shallow water and soils along Upper Three Runs Creek (UTRC) and associated wetlands between SRS Road F and Cato Road were sampled for nonradioactive and radioactive constituents. The sampling program is associated with risk evaluations being performed for various regulatory documents in these areas of the Savannah River Site (SRS). WSRC selected fifty sampling sites bordering the Mixed Waste Management Facility (MWMF), F- and H-Area Seepage Basins (FHSB), and the Sanitary Landfill (SL). The analytical results from this study provided information on the water and soil quality in UTRC and its associated wetlands. The analytical results from this investigation indicated that the primary constituents and radiological indicators detected in the shallow water and soils were tritium, gross alpha, radium 226, total radium and strontium 90. This investigation involved the collection of shallow water samples during the Fall of 1991 and the Spring of 1992 at fifty (50) sampling locations. Sampling was performed during these periods to incorporate high and low water table periods. Samples were collected from three sections along UTRC denoted as Phase I (MWMF), Phase II (FHSB) and Phase III (SL). One vibracored soil sample was also collected in each phase during the Fall of 1991. This document is compiled solely of experimental data obtained from the sampling procedures.

Haselow, L.A.; Rogers, V.A. [Westinghouse Savannah River Co., Aiken, SC (United States); Riordan, C.J. [Metcalf and Eddy, Inc. (United States); Eidson, G.W.; Herring, M.K. [Normandeau Associates, Inc. (United States)

1992-08-01T23:59:59.000Z

93

The European Weather Radar Network (OPERA): An opportunity for hydrology!  

E-Print Network [OSTI]

at the European level dates back to COST 72 (Measurement of precipitation by radar) which started in 1979The European Weather Radar Network (OPERA): An opportunity for hydrology! Iwan Holleman1 , Laurent (EARS), Ljubljana (Slovenia). 1 Introduction The tradition of weather radar collaboration

Stoffelen, Ad

94

Educational Innovations in Radar Meteorology Prof. S. A. Rutledge  

E-Print Network [OSTI]

of the most memorable aspects of your graduate level education in radar meteorology? 2. Briefly describe and integrating the radar measurements with other observations #12;NCAR CPNCAR CP--3 and CP3 and CP--3 mobile C3Educational Innovations in Radar Meteorology Prof. S. A. Rutledge Department of Atmospheric Science

Rutledge, Steven

95

Tracking butterfly flight paths across the landscape with harmonic radar  

E-Print Network [OSTI]

Tracking butterfly flight paths across the landscape with harmonic radar E. T. Cant1,*, A. D. Smith of five butterfly species were successfully tracked using harmonic radar within an agricultural landscape. Keywords: butterfly flight; harmonic radar; linear landscape features; Aglais urticae; Inachis io 1

Northampton, University of

96

Some non-precipitation radar echoes as observed by CPS-9 radar  

E-Print Network [OSTI]

's curvature, which caused the cell to lie below the radar bean. The decelerating gust line passed the radar station at 2304Z; its position at 2322Z is shown in (Figure ld, 5 mi markers). A wind-direction change of 60 deg and a wind speed in- 35 crease... markers) formed behind the second. The parent cell moved some 10 mi during the hour of its life cycle, and the gust lines dissipated before reaching the radar. At 0240Z the aerovane (not shown) showed a 55 deg shift in wind direction with a speed of 5...

Luckenbach, Guenther Edward

2012-06-07T23:59:59.000Z

97

Soil-penetrating synthetic aperture radar  

SciTech Connect (OSTI)

This report summarizes the results for the first year of a two year Laboratory Directed Research and Development (LDRD) effort. This effort included a system study, preliminary data acquisition, and preliminary algorithm development. The system study determined the optimum frequency and bandwidth, surveyed soil parameters and targets, and defined radar cross section in lossy media. The data acquisition imaged buried objects with a rail-SAR. Algorithm development included a radar echo model, three-dimensional processing, sidelobe optimization, phase history data interpolation, and clutter estimation/cancellation.

Boverie, B.; Brock, B.C.; Doerry, A.W.

1994-12-01T23:59:59.000Z

98

USAGE OF RADARS FOR WIND ENERGY APPICATIONS Determine the benefit of using radar observations for wind energy applications by  

E-Print Network [OSTI]

USAGE OF RADARS FOR WIND ENERGY APPICATIONS TASK: Determine the benefit of using radar observations for wind energy applications by analyzing i) the resolution effects and ii) sensitivity effects of weather radar systems. MOTIVATION: Wind energy applications strongly focus high-resolution wind observations

99

Signal to Noise Analysis of iRadar sensors  

SciTech Connect (OSTI)

This document follows my process of testing; comparing; and contrasting several iRadars signal to noise ratios for both HH and VV polarization. A brief introduction is given explaining the basics of iRadar technology and what data I was collecting. The process section explains the steps I took to collect my data along with any procedures I followed. The analysis section compares and contrasts five different radars and the two different polarizations. The analysis also details the radars viewing limitations and area. Finally, the report delves into the effects of two radars interfering with each other. A conclusion goes over the success and findings of the project.

Fritzke, A; Top, P

2009-09-10T23:59:59.000Z

100

Transmitter passband requirements for imaging radar.  

SciTech Connect (OSTI)

In high-power microwave power amplifiers for radar, distortion in both amplitude and phase should generally be expected. Phase distortions can be readily equalized. Some amplitude distortions are more problematic than others. In general, especially for SAR using LFM chirps, low frequency modulations such as gain slopes can be tolerated much better than multiple cycles of ripple across the passband of the waveform.

Doerry, Armin Walter

2012-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "radar sample volume" 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

Motion Measurement for Synthetic Aperture Radar.  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) measures radar soundings from a set of locations typically along the flight path of a radar platform vehicle. Optimal focusing requires precise knowledge of the sounding source locations in 3 - D space with respect to the target scene. Even data driven focusing techniques (i.e. autofocus) requires some degree of initial fidelity in the measurements of the motion of the radar. These requirements may be quite stringent especially for fine resolution, long ranges, and low velocities. The principal instrument for measuring motion is typically an Inertial Measurement Unit (IMU), but these instruments have inherent limi ted precision and accuracy. The question is %22How good does an IMU need to be for a SAR across its performance space?%22 This report analytically relates IMU specifications to parametric requirements for SAR. - 4 - Acknowledgements Th e preparation of this report is the result of a n unfunded research and development activity . Although this report is an independent effort, it draws heavily from limited - release documentation generated under a CRADA with General Atomics - Aeronautical System, Inc. (GA - ASI), and under the Joint DoD/DOE Munitions Program Memorandum of Understanding. Sandia National Laboratories is a multi - program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of En ergy's National Nuclear Security Administration under contract DE - AC04 - 94AL85000.

Doerry, Armin W.

2015-01-01T23:59:59.000Z

102

Doppler Radar Wind Profiles Iwan Holleman  

E-Print Network [OSTI]

). The potential impact of a network of boundary layer wind profilers and sodars for mesoscale wind analysisDoppler Radar Wind Profiles Iwan Holleman Scientific Report, KNMI WR-2003-02, 2003 #12;2 #12 Strategy 18 3 Methods for Wind Profile Retrieval 25 3.1 Radial Velocity from Local Wind Model 25 3

Stoffelen, Ad

103

Micropower impulse radar technology and applications  

SciTech Connect (OSTI)

The LLNL-developed Micropower Impulse Radar (MIR) technology has quickly gone from laboratory concept to embedded circuitry in numerous government and commercial systems in the last few years[l]. The main ideas behind MIR, invented by T. McEwan in the Laser Program, are the generation and detection systems for extremely low- power ultra-wideband pulses in the gigaHertz regime using low-cost components. These ideas, coupled with new antenna systems, timing and radio-frequency (RF) circuitry, computer interfaces, and signal processing, have provided the catalyst for a new generation of compact radar systems. Over the past several years we have concentrated on a number of applications of MIR which address a number of remote-sensing applications relevant to emerging programs in defense, transportation, medical, and environmental research. Some of the past commercial successes have been widely publicized [2] and are only now starting to become available for market. Over 30 patents have been filed and over 15 licenses have been signed on various aspects of the MIR technology. In addition, higher performance systems are under development for specific laboratory programs and government reimbursables. The MIR is an ultra- wideband, range-gated radar system that provides the enabling hardware technology used in the research areas mentioned above. It has numerous performance parameters that can be Selected by careful design to fit the requirements. We have improved the baseline, short- range, MIR system to demonstrate its effectiveness. The radar operates over the hand from approximately I to 4 GHz with pulse repetition frequencies up to 10 MHz. It provides a potential range resolution of I cm at ranges of greater than 20 m. We have developed a suite of algorithms for using MIR for image formation. These algorithms currently support Synthetic aperture and multistate array geometries. This baseline MIR radar imaging system has been used for several programmatic applications.

Mast, J., LLNL

1998-04-15T23:59:59.000Z

104

The design of an air sampling system using the High-Volume Inertial Sampler: and a comparison of the system to the Vertical Elutriator  

E-Print Network [OSTI]

-restricting valve were added to the sampling element. A field test was conducted at a textile mill. A total of 68 air samples were taken--32 with Vertical Elutriators (VE's) and 36 with HVIS's. A comparison of the results showed that the two sampler types... measured similar concen- trations of cotton dust, Statistical analyses of the results revealed that the HVIS has a higher cut-point than the VE but that the geometric standard deviations of the two samplers were not significantly different...

Arsenault, Joseph Alphonse

1987-01-01T23:59:59.000Z

105

Tomographic data developed using the ABEM RAMAC borehole radar system at the Mixed Waste Landfill Integrated Demonstration  

SciTech Connect (OSTI)

The ABEM RAMAC borehole radar system was run as part of the Mixed Waste Landfill Integrated Demonstration for Sandia National Laboratories at Kirtland AFB. Tomograms were created between three test boreholes-UCAP No. 1, UCAP No. 2, and UCAP No. 3. These tomograms clearly delineate areas of amplitude attenuation and residual time of arrival or slowness differences. Plots for slowness were made using both the maximum and minimum of the first arrival pulse. The data demonstrates that the ABEM RAMAC 60-MHz pulse sampling radar system can be used to collect usable data in a highly conductive environment.

MacLeod, G.A.; Barker, D.L.; Molnar, S. [Raytheon Services Nevada, Las Vegas, NV (United States)

1994-02-18T23:59:59.000Z

106

A WhatandWhere Fusion Neural Network for Recognition and Tracking of Multiple Radar Emitters  

E-Print Network [OSTI]

is proposed for classification of radar pulses in autonomous Electronic Support Measure systems. Radar type a high level of performance on complex, incomplete and overlapping radar data. #12; 1 Introduction RadarA What­and­Where Fusion Neural Network for Recognition and Tracking of Multiple Radar Emitters Eric

Grossberg, Stephen

107

Effect of sample test volume and geometry on the tensile mechanical behavior of SiC/SiC continuous fiber ceramic composites. Final report  

SciTech Connect (OSTI)

The development of a silicon carbide-type fiber from an organometallic precursor has led to a major resurgence of interest in fiber-reinforced ceramic matrix composites. By combining this high strength fiber with a variety of ceramic matrices it has been possible to achieve tough composites offering significant potential advantages over monolithic ceramics and carbon-carbon for high temperature applications. A continuous-fiber ceramic matrix composite (CFCC) typical of materials proposed for such industrial applications as power generation, heat recovery and chemical production as well as biomedical and environmental applications was tested in uniaxial tension using a universal test machine. Test parameters investigated included: test mode (load versus displacement), test rate (0.003 mm/s, 0.03 mm/s, 50 N/s and 500 N/s), specimen geometry (straight-sided versus reduced-gauge section) and type of specimen volume (long/thin versus short/fat). Typical properties include an average elastic modulus 130 {+-} 10 Gpa, an average proportional limit stress of 45 {+-} 20 Mpa, an average ultimate tensile strength of 180 {+-} 20 MPa and an average modulus of toughness of 8.4 {+-} 2 (x10{sup 5})J/m{sup 3}.

Sankar, J.; Kelkar, A.D.; Neogi, J.

1998-09-01T23:59:59.000Z

108

Development of a Drillrod/Telemetry Radar  

SciTech Connect (OSTI)

Efficient extraction of deeply buried natural resources is dependent upon accurate geologic models. The model becomes the basis for developing plans for extraction of the resource. Geoscientists working in geothermal and hydrocarbon recovery have a great deal in common with fellow geoscientists working in the mining industry. They appreciate the intractable problem of increasing the depth of investigation to tens of meters from the wellbore. The goal of this project was to develop a borehole radar tool to acquire data within tens of meters from the wellbore. For geothermal and hydrocarbon applications, the tool was to acquire data for mapping fractures surrounding the wellbore. In mining of coal, the radar acquires data for determining coal seam thickness and detecting geologic anomalies ahead of mining.

Raton Technology Research, Inc.

1999-11-12T23:59:59.000Z

109

Performance limits for Synthetic Aperture Radar.  

SciTech Connect (OSTI)

The performance of a Synthetic Aperture Radar (SAR) system depends on a variety of factors, many which are interdependent in some manner. It is often difficult to ''get your arms around'' the problem of ascertaining achievable performance limits, and yet those limits exist and are dictated by physics, no matter how bright the engineer tasked to generate a system design. This report identifies and explores those limits, and how they depend on hardware system parameters and environmental conditions. Ultimately, this leads to a characterization of parameters that offer optimum performance for the overall SAR system. For example, there are definite optimum frequency bands that depend on weather conditions and range, and minimum radar PRF for a fixed real antenna aperture dimension is independent of frequency. While the information herein is not new to the literature, its collection into a single report hopes to offer some value in reducing the ''seek time''.

Doerry, Armin Walter

2006-02-01T23:59:59.000Z

110

Uranium in US surface, ground, and domestic waters. Volume 2  

SciTech Connect (OSTI)

The report Uranium in US Surface, Ground, and Domestic Waters comprises four volumes. Volumes 2, 3, and 4 contain data characterizing the location, sampling date, type, use, and uranium conentrations of 89,994 individual samples presented in tabular form. The tabular data in volumes 2, 3, and 4 are summarized in volume 1 in narrative form and with maps and histograms.

Drury, J.S.; Reynolds, S.; Owen, P.T.; Ross, R.H.; Ensminger, J.T.

1981-04-01T23:59:59.000Z

111

The use of composite radar photographs in synoptic weather analysis  

E-Print Network [OSTI]

. 'Weather Su"eau radar ste- tions have been collecting radar observations. These observations were in the form of time lapse motion pictures of their' ppl scopes made during periods when precipitation echoes vere present. The photographic records thus... TEE MATERIALS USED AND TSE STORMS STUDIED The materials used in this study were (I) X6 xxu aud 33 xxx photosraphic records of ppl scopee at several staticuii; (I) a Seiiei of . hourly composite radar photodraphs of storms which occurred on 27 May...

Smith, G. D.

1957-01-01T23:59:59.000Z

112

Raindrop size distributions and radar reflectivity-rain rate relationships for radar hydrology Hydrology and Earth System Sciences, 5(4), 615627 (2001) EGS  

E-Print Network [OSTI]

Raindrop size distributions and radar reflectivity-rain rate relationships for radar hydrology 615 Hydrology and Earth System Sciences, 5(4), 615­627 (2001) © EGS Raindrop size distributions and radar reflectivity­rain rate relationships for radar hydrology* Remko Uijlenhoet1 Sub-department Water Resources

Boyer, Edmond

113

Modeling Of Surface Deformation From Satellite Radar Interferometry...  

Open Energy Info (EERE)

interferometric synthetic aperture radar) analysis of two-year Radarsat satellite data covering the period May 2006 - March 2008. SAR scenes from two orbit geometries are...

114

Sandia National Laboratories: Siting: Wind Turbine/Radar Interference...  

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

and MIT Lincoln Laboratory). The goal is to overcome interference caused by wind turbines on civilian and military radar systems by developing site planning tools,...

115

INTERAGENCY FIELD TEST & EVALUATION OF WIND TURBINE - RADAR INTERFEREN...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

the tests and 2) summaries of three field tests designed to measure the impact of wind turbines on current air surveillance radars and the effectiveness of private sector...

116

NNSA Completes its Critical Radar Arming and Fuzing Test for...  

National Nuclear Security Administration (NNSA)

its Critical Radar Arming and Fuzing Test for the W88 ALT 370 | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile...

117

Ka-Band ARM Zenith Radar (KAZR) Instrument Handbook  

SciTech Connect (OSTI)

The Ka-band ARM zenith radar (KAZR) is a zenith-pointing Doppler cloud radar operating at approximately 35 GHz. The KAZR is an evolutionary follow-on radar to ARM's widely successful millimeter-wavelength cloud radar (MMCR). The main purpose of the KAZR is to provide vertical profiles of clouds by measuring the first three Doppler moments: reflectivity, radial Doppler velocity, and spectra width. At the sites where the dual-polarization measurements are made, the Doppler moments for the cross-polarization channel are also available. In addition to the moments, velocity spectra are also continuously recorded for each range gate.

Widener, K; Bharadwaj, N; Johnson, K

2012-03-06T23:59:59.000Z

118

Development and characterization analysis of a radar polarimeter  

E-Print Network [OSTI]

OF FIGURES FIGURE 2a 2b 3a 3b Sa 5b 10 12 13 14 The Typical Radar-to-Target Geometry. Block Diagram of Frequency Modulated Continuous Wave Radar System. Simplified Frequency Modulated-Continuous Wave Radar System. Block Diagram of a Pulse... 8-1 8-2 C-I C-2 C-3 Approximation Nethod for Focusing the Antenna Pair at Some Height h . Linear FM Pulse Compression . . Signal Characteristics of FM Pulse Radar System Frequency and Time Representation of the filter Response. The Block...

Bong, Soei Siang

2012-06-07T23:59:59.000Z

119

Volume Project  

E-Print Network [OSTI]

Math 13900. Volume Project. For the following project, you may use any materials. This must be your own original creation. Construct a right pyramid with a base ...

rroames

2010-01-12T23:59:59.000Z

120

Greenland snow accumulation estimates from satellite radar scatterometer data  

E-Print Network [OSTI]

Greenland snow accumulation estimates from satellite radar scatterometer data Mark R. Drinkwater accumulation on the Greenland ice sheet. Microwave radar backscatter images of Greenland are derived using (or decrease) in net snow accumulation on the polar ice caps. The net mass balance of the Greenland

Long, David G.

Note: This page contains sample records for the topic "radar sample volume" 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

Radar-cross-section reduction of wind turbines. part 1.  

SciTech Connect (OSTI)

In recent years, increasing deployment of large wind-turbine farms has become an issue of growing concern for the radar community. The large radar cross section (RCS) presented by wind turbines interferes with radar operation, and the Doppler shift caused by blade rotation causes problems identifying and tracking moving targets. Each new wind-turbine farm installation must be carefully evaluated for potential disruption of radar operation for air defense, air traffic control, weather sensing, and other applications. Several approaches currently exist to minimize conflict between wind-turbine farms and radar installations, including procedural adjustments, radar upgrades, and proper choice of low-impact wind-farm sites, but each has problems with limited effectiveness or prohibitive cost. An alternative approach, heretofore not technically feasible, is to reduce the RCS of wind turbines to the extent that they can be installed near existing radar installations. This report summarizes efforts to reduce wind-turbine RCS, with a particular emphasis on the blades. The report begins with a survey of the wind-turbine RCS-reduction literature to establish a baseline for comparison. The following topics are then addressed: electromagnetic model development and validation, novel material development, integration into wind-turbine fabrication processes, integrated-absorber design, and wind-turbine RCS modeling. Related topics of interest, including alternative mitigation techniques (procedural, at-the-radar, etc.), an introduction to RCS and electromagnetic scattering, and RCS-reduction modeling techniques, can be found in a previous report.

Brock, Billy C.; Loui, Hung; McDonald, Jacob J.; Paquette, Joshua A.; Calkins, David A.; Miller, William K.; Allen, Steven E.; Clem, Paul Gilbert; Patitz, Ward E.

2012-03-05T23:59:59.000Z

122

INTERDISCIPLINARY SCIENCE AND APPLICATIONS USING SATELLITE RADAR ALTIMETRY  

E-Print Network [OSTI]

latitude coverage Earth Satellite Altimeters Altimeter measures geocentric sea level and ice sheet instrument has been developed at JPL using the principle of radar interferometry · The new measurementINTERDISCIPLINARY SCIENCE AND APPLICATIONS USING SATELLITE RADAR ALTIMETRY C.K. SHUM EE Wave

123

Lake level variations from satellite radar altimetry with  

E-Print Network [OSTI]

Lake level variations from satellite radar altimetry with retracking of multi-leading edge Shirzad level measurements Increase the number of reliable observations particularly in the shoreline cm Descending tracks Time [year] Waterlevel[m]Lake level variations from satellite radar altimetry

Stuttgart, Universität

124

Doppler Radar Wind Profiles Iwan Holleman (holleman@knmi.nl)  

E-Print Network [OSTI]

is required before it can be presented to users or assimilated into numerical weather prediction (NWP) models Institute (KNMI), The Netherlands ABSTRACT Doppler weather radars can be employed to determine wind profiles profiles has been performed at KNMI. The verification results indicate that weather radars can provide high

Stoffelen, Ad

125

Cassini Radio Detection and Ranging (RADAR): Earth and Venus observations  

E-Print Network [OSTI]

of operation is as a synthetic aperture radar (SAR) mapper at Titan, with the fan-shaped beam dragged across of incidence angles. During all of the active modes, SAR, altimeter, and scat- terometer, the microwave power but rather was operated to obtain calibration data and rehearse instrument operations. 2. Venus The RADAR

Lorenz, Ralph D.

126

An analysis of radar estimated precipitation to rain gauge measurements  

E-Print Network [OSTI]

the surface. These levels included 1.0 1.5@ 2.0 @ 2.5 km, and 3.0 km. Radar precipitation estimates were calculated at each 1.4 2 level using Z = 30ORand Z = 25OR" . The precipitation amounts, as measured by both the gauges and the radar,were used...

Gleason, Byron Edward

1997-01-01T23:59:59.000Z

127

E-Print Network 3.0 - apple extract attenuates Sample Search...  

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

Search Sample search results for: apple extract attenuates Page: << < 1 2 3 4 5 > >> 1 Q. J. R. Meteoml. SOC.(1998), 124, pp. 2393-2415 Correction for attenuation of radar...

128

Radar and sonar probing of potash  

E-Print Network [OSTI]

technique to detect reflections at distances greater than 200 m from clay-salt and clay-anhydrite interfaces. In 1972 Holser et al. mapped the flanks of the Pine Prairie salt dome using a radar logging tool with a 1 microsecond pulse at 230 MHz and a... the first four systems Unterberger (1974) mapped the roof of a tunnel in salt and obtained reflections from salt dome flanks, salt pillars and the tops of salt domes. Hluchanek (1973) used the 440 MHz system to map the top of the salt in the United Salt...

Lopez Aguilar, Luis Felipe

1986-01-01T23:59:59.000Z

129

ARM - Field Campaign - NSA Scanning Radar IOP  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD) by Microtops Atmospheric Optical Depth (AOD) by Microtops ARMgovCampaignsNSA Scanning Radar IOP ARM

130

W-band ARM Cloud Radar (WACR) Handbook  

SciTech Connect (OSTI)

The W-band Atmospheric Radiation Measurement (ARM) Program Cloud Radar (WACR) systems are zenith pointing Doppler radars that probe the extent and composition of clouds at 95.04 GHz. The main purpose of this radar is to determine cloud boundaries (e.g., cloud bottoms and tops). This radar reports estimates for the first three spectra moments for each range gate up to 15 km. The 0th moment is reflectivity, the 1st moment is radial velocity, and the 2nd moment is spectral width. Also available are the raw spectra files. Unlike the millimeter wavelength cloud radar (MMCR), the WACR does not use pulse coding and operates in only copolarization and cross-polarization modes.

Widener, KB; Johnson, K

2005-01-05T23:59:59.000Z

131

Radar transponder apparatus and signal processing technique  

DOE Patents [OSTI]

An active, phase-coded, time-grating transponder and a synthetic-aperture radar (SAR) and signal processor means, in combination, allow the recognition and location of the transponder (tag) in the SAR image and allow communication of information messages from the transponder to the SAR. The SAR is an illuminating radar having special processing modifications in an image-formation processor to receive an echo from a remote transponder, after the transponder receives and retransmits the SAR illuminations, and to enhance the transponder's echo relative to surrounding ground clutter by recognizing special transponder modulations from phase-shifted from the transponder retransmissions. The remote radio-frequency tag also transmits information to the SAR through a single antenna that also serves to receive the SAR illuminations. Unique tag-modulation and SAR signal processing techniques, in combination, allow the detection and precise geographical location of the tag through the reduction of interfering signals from ground clutter, and allow communication of environmental and status information from said tag to be communicated to said SAR.

Axline, Jr., Robert M. (Albuquerque, NM); Sloan, George R. (Albuquerque, NM); Spalding, Richard E. (Albuquerque, NM)

1996-01-01T23:59:59.000Z

132

Assembly flow simulation of a radar  

SciTech Connect (OSTI)

A discrete event simulation model has been developed to predict the assembly flow time of a new radar product. The simulation was the key tool employed to identify flow constraints. The radar, production facility, and equipment complement were designed, arranged, and selected to provide the most manufacturable assembly possible. A goal was to reduce the assembly and testing cycle time from twenty-six weeks to six weeks. A computer software simulation package (SLAM II) was utilized as the foundation a for simulating the assembly flow time. FORTRAN subroutines were incorporated into the software to deal with unique flow circumstances that were not accommodated by the software. Detailed information relating to the assembly operations was provided by a team selected from the engineering, manufacturing management, inspection, and production assembly staff. The simulation verified that it would be possible to achieve the cycle time goal of six weeks. Equipment and manpower constraints were identified during the simulation process and adjusted as required to achieve the flow with a given monthly production requirement. The simulation is being maintained as a planning tool to be used to identify constraints in the event that monthly output is increased. ``What-if`` studies have been conducted to identify the cost of reducing constraints caused by increases in output requirement.

Rutherford, W.C.; Biggs, P.M.

1993-10-01T23:59:59.000Z

133

UWB RADAR IMAGING SYSTEM WITH TWO-ELEMENT RECEIVING ARRAY ANTENNA  

E-Print Network [OSTI]

-domain focusing and imaging. Simulated and measured radar images demonstrate radar operation to map out a person considerably the level of signals scat- tered by background beyond the radar FOV. Those high-performed antennaUWB RADAR IMAGING SYSTEM WITH TWO-ELEMENT RECEIVING ARRAY ANTENNA Dmitriy L. Sostanovsky1

Southern California, University of

134

Observed radar reflectivity in convectively coupled Kelvin and mixed Rossby-gravity waves  

E-Print Network [OSTI]

be measurable from surface gauges (>0.5 mm/hr). Addition- ally, the area of radar echo at each height of a normalized probability density function (PDF) of radar echo intensity at that level. Our analysis uses radarObserved radar reflectivity in convectively coupled Kelvin and mixed Rossby-gravity waves A. Swann

Yuter, Sandra

135

The inuence of the interplanetary medium on SuperDARN radar scattering occurrence  

E-Print Network [OSTI]

in the frequency range 8±20 MHz (Greenwald et al., 1995). The level of scatter measured by the radars is highlyThe in¯uence of the interplanetary medium on SuperDARN radar scattering occurrence P. Ballatore1- planetary medium on the radar scattering occurrence, related to the whole array of SuperDARN radars

Paris-Sud XI, Université de

136

Geomorphic Evaluation of Radar Imagery of Southeastern Panama and Northwestern Colombia  

E-Print Network [OSTI]

directly from radar imagery . • • • • . • • • . • • . • • Radar chips from the four major landform regions in Darien Province I Panama: plains, low hills I high hills, and mountains. • • • . • . • • . • . . . Comparison of radar imagery and topographic...-Derived Terrain Slope (a) Data for Darien Province I Panama - Plains. • • • • • • • • • • • • • • • • • • 132 Cumulative Frequency Curves of Radar-Derived Terrain Slope (a) Data for Darien Province I Panama - Low Hills. • . . • • • . . • • . . • • • . 133...

Lewis, Anthony J.

1971-02-01T23:59:59.000Z

137

Quality information for radars and radar data I. Holleman, D. Michelson, G. Galli, U. Germann,  

E-Print Network [OSTI]

.7 Beam attenuation 35 5.8 Wet radome attenuation 36 5.9 Wind turbines 37 5.10 Insects and birds 37 5 and anomalous propagation 51 7.1.3 Birds and actively-flying insects 51 7.2 Weather Radar Wind Profiles 51 7 for wind data 49 7.1 Quality factors for wind data 49 7.1.1 Velocity Aliasing 50 7.1.2 Clutter

Stoffelen, Ad

138

Automatic signal processing of front monitor radar for tunneling machines  

SciTech Connect (OSTI)

It is planned to install a front monitoring impulse radar on the surface of the rotating drill of tunneling machines in order to detect obstacles such as casing pipes of vertical borings. The conventional aperture synthesis technique can no more be applied to such cases because the radar image of a pipe dies not constituent a hyperbola as is the case for linear scanning radars. The authors have developed a special purpose signal processing algorithm with the aid of the discrete model fitting method, which can be used for any pattern of scanning. The details of the algorithm are presented together with the results of numerical simulations and test site experiments.

Sato, Toru [Kyoto Univ. (Japan). Dept. of Electronics and Communication] [Kyoto Univ. (Japan). Dept. of Electronics and Communication; Takeda, Kenya [NTT Co. Ltd., Chiba (Japan)] [NTT Co. Ltd., Chiba (Japan); Nagamatsu, Takashi [Mitsubishi Heavy Industries, Ltd., Tokyo (Japan)] [Mitsubishi Heavy Industries, Ltd., Tokyo (Japan); Wakayama, Toshio [Mitsubishi Electric Corp., Kamakura, Kanagawa (Japan)] [Mitsubishi Electric Corp., Kamakura, Kanagawa (Japan); Kimura, Iwane [Osaka Inst. of Tech., Hirakata, Osaka (Japan)] [Osaka Inst. of Tech., Hirakata, Osaka (Japan); Shinbo, Tetsuya [Komatsu Co. Ltd., Kanagawa (Japan)] [Komatsu Co. Ltd., Kanagawa (Japan)

1997-03-01T23:59:59.000Z

139

Monitoring internal organ motion with continuous wave radar in CT  

SciTech Connect (OSTI)

Purpose: To avoid motion artifacts in medical imaging or to minimize the exposure of healthy tissues in radiation therapy, medical devices are often synchronized with the patient's respiratory motion. Today's respiratory motion monitors require additional effort to prepare the patients, e.g., mounting a motion belt or placing an optical reflector on the patient's breast. Furthermore, they are not able to measure internal organ motion without implanting markers. An interesting alternative to assess the patient's organ motion is continuous wave radar. The aim of this work is to design, implement, and evaluate such a radar system focusing on application in CT.Methods: The authors designed a radar system operating in the 860 MHz band to monitor the patient motion. In the intended application of the radar system, the antennas are located close to the patient's body inside the table of a CT system. One receive and four transmitting antennas are used to avoid the requirement of exact patient positioning. The radar waves propagate into the patient's body and are reflected at tissue boundaries, for example at the borderline between muscle and adipose tissue, or at the boundaries of organs. At present, the authors focus on the detection of respiratory motion. The radar system consists of the hardware mentioned above as well as of dedicated signal processing software to extract the desired information from the radar signal. The system was evaluated using simulations and measurements. To simulate the radar system, a simulation model based on radar and wave field equations was designed and 4D respiratory-gated CT data sets were used as input. The simulated radar signals and the measured data were processed in the same way. The radar system hardware and the signal processing algorithms were tested with data from ten volunteers. As a reference, the respiratory motion signal was recorded using a breast belt simultaneously with the radar measurements.Results: Concerning the measurements of the test persons, there is a very good correlation (?= 0.917) between the respiratory motion phases received by the radar system and the external motion monitor. Our concept of using an array of transmitting antennas turned out to be widely insensitive to the positioning of the test persons. A time shift between the respiratory motion curves recorded with the radar system and the motion curves from the external respiratory monitor was observed which indicates a slight difference between internal organ motion and motion detected by the external respiratory monitor. The simulations were in good accordance with the measurements.Conclusions: A continuous wave radar operating in the near field of the antennas can be used to determine the respiratory motion of humans accurately. In contrast to trigger systems used today, the radar system is able to measure motion inside the body. If such a monitor was routinely available in clinical CT, it would be possible optimizing the scan start with respect to the respiratory state of the patient. Breathing commands would potentially widely be avoided, and as far as uncooperative patients or children are concerned, less sedation might be necessary. Further applications of the radar system could be in radiation therapy or interventional imaging for instance.

Pfanner, Florian [Institute of Medical Physics, University of Erlangen–Nürnberg, 91052 Erlangen, Germany and Siemens AG, Healthcare Sector, Siemensstr. 1, 91301 Forchheim (Germany)] [Institute of Medical Physics, University of Erlangen–Nürnberg, 91052 Erlangen, Germany and Siemens AG, Healthcare Sector, Siemensstr. 1, 91301 Forchheim (Germany); Maier, Joscha [Medical Physics in Radiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg (Germany)] [Medical Physics in Radiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg (Germany); Allmendinger, Thomas; Flohr, Thomas [Siemens AG, Healthcare Sector, Siemensstr. 1, 91301 Forchheim (Germany)] [Siemens AG, Healthcare Sector, Siemensstr. 1, 91301 Forchheim (Germany); Kachelrieß, Marc [Institute of Medical Physics, University of Erlangen–Nürnberg, 91052 Erlangen, Germany and Medical Physics in Radiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg (Germany)] [Institute of Medical Physics, University of Erlangen–Nürnberg, 91052 Erlangen, Germany and Medical Physics in Radiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg (Germany)

2013-09-15T23:59:59.000Z

140

Wide band stepped frequency ground penetrating radar  

DOE Patents [OSTI]

A wide band ground penetrating radar system (10) embodying a method wherein a series of radio frequency signals (60) is produced by a single radio frequency source (16) and provided to a transmit antenna (26) for transmission to a target (54) and reflection therefrom to a receive antenna (28). A phase modulator (18) modulates those portion of the radio frequency signals (62) to be transmitted and the reflected modulated signal (62) is combined in a mixer (34) with the original radio frequency signal (60) to produce a resultant signal (53) which is demodulated to produce a series of direct current voltage signals (66) the envelope of which forms a cosine wave shaped plot (68) which is processed by a Fast Fourier Transform unit 44 into frequency domain data (70) wherein the position of a preponderant frequency is indicative of distance to the target (54) and magnitude is indicative of the signature of the target (54).

Bashforth, Michael B. (Buellton, CA); Gardner, Duane (Santa Maria, CA); Patrick, Douglas (Santa Maria, CA); Lewallen, Tricia A. (Ventura, CA); Nammath, Sharyn R. (Santa Barbara, CA); Painter, Kelly D. (Goleta, CA); Vadnais, Kenneth G. (Alexandria, VA)

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "radar sample volume" 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

Q. J. R. Meteorol. Soc. (2004), 130, pp. 120 Using mesocale model winds for correcting wind-drift errors in radar  

E-Print Network [OSTI]

the vertical shear of the horizontal wind. We assume the shear and the fall speed in the layer are constant rain because of the low fall speed of around 1 m s-1. Sampling these wind-induced fall streak patterns vertical profile of reflectivity shear fall streak wind drift 1. Introduction Operational radars around

Reading, University of

142

Earth curvature and atmospheric refraction effects on radar signal propagation.  

SciTech Connect (OSTI)

The earth isn't flat, and radar beams don't travel straight. This becomes more noticeable as range increases, particularly at shallow depression/grazing angles. This report explores models for characterizing this behavior.

Doerry, Armin Walter

2013-01-01T23:59:59.000Z

143

Merging Cloud and Precipitation Radar Data Provides a Better  

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

Merging Cloud and Precipitation Radar Data Provides a Better View of Tropical Rain Clouds For original submission and image(s), see ARM Research Highlights http:www.arm.gov...

144

Coherent radar ice thickness measurements over the Greenland ice sheet  

E-Print Network [OSTI]

We developed two 150-MHz coherent radar depth sounders for ice thickness measurements over the Greenland ice sheet. We developed one of these using connectorized components and the other using radio frequency integrated circuits (RFICs). Both...

Gogineni, S. Prasad; Tammana, Dilip; Braaten, David A.; Leuschen, C.; Legarsky, J.; Kanagaratnam, P.; Stiles, J.; Allen, C.; Jezek, K.; Akins, T.

2001-12-27T23:59:59.000Z

145

E-Print Network 3.0 - assessment databases measurements Sample...  

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

Database... and Sampling Guide http:usda-ars.nmsu.edumonitassessmonitoring.php Limited version in Manual Volume II Yes... Sampling Guide Determine how many samples or...

146

Porosity, single-phase permeability, and capillary pressure data from preliminary laboratory experiments on selected samples from Marker Bed 139 at the Waste Isolation Pilot Plant. Volume 3 of 3: Appendices C, D, E, and F  

SciTech Connect (OSTI)

This volume contains the mineralogy, porosity, and permeability results from the Marker Bed 139 anhydrite specimens evaluated by TerraTek, Inc. for the Waste Isolation Pilot Plant. This volume also documents the brine recipe used by RE/SPEC, Inc., the parameter package submitted to Performance Assessment based on all the data, and a memo on the mixed Brooks and Corey two-phase characteristic curves.

Howarth, S.M.; Christian-Frear, T.

1997-08-01T23:59:59.000Z

147

Graphene based tunable fractal Hilbert curve array broadband radar absorbing screen for radar cross section reduction  

SciTech Connect (OSTI)

This paper proposes a new type of graphene based tunable radar absorbing screen. The absorbing screen consists of Hilbert curve metal strip array and chemical vapour deposition (CVD) graphene sheet. The graphene based screen is not only tunable when the chemical potential of the graphene changes, but also has broadband effective absorption. The absorption bandwidth is from 8.9GHz to 18.1GHz, ie., relative bandwidth of more than 68%, at chemical potential of 0eV, which is significantly wider than that if the graphene sheet had not been employed. As the chemical potential varies from 0 to 0.4eV, the central frequency of the screen can be tuned from 13.5GHz to 19.0GHz. In the proposed structure, Hilbert curve metal strip array was designed to provide multiple narrow band resonances, whereas the graphene sheet directly underneath the metal strip array provides tunability and averagely required surface resistance so to significantly extend the screen operation bandwidth by providing broadband impedance matching and absorption. In addition, the thickness of the screen has been optimized to achieve nearly the minimum thickness limitation for a nonmagnetic absorber. The working principle of this absorbing screen is studied in details, and performance under various incident angles is presented. This work extends applications of graphene into tunable microwave radar cross section (RCS) reduction applications.

Huang, Xianjun, E-mail: xianjun.huang@manchester.ac.uk [School of Electrical and Electronic Engineering, University of Manchester, Manchester M13 9PL (United Kingdom); College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China); Hu, Zhirun [School of Electrical and Electronic Engineering, University of Manchester, Manchester M13 9PL (United Kingdom); Liu, Peiguo [College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

2014-11-15T23:59:59.000Z

148

A Radar-like Iron based Nanohybrid as an Efficient and Stable...  

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

Radar-like Iron based Nanohybrid as an Efficient and Stable Electrocatalyst for Oxygen Reduction. A Radar-like Iron based Nanohybrid as an Efficient and Stable Electrocatalyst for...

149

Incoherent scatter radar detection of enhanced plasma line in ionospheric E-region over Arecibo  

E-Print Network [OSTI]

A series of incoherent scatter radar (ISR) observation were conducted at the Arecibo Observatory from December 27, 2005 until January 3, 2006. From plasma line measurements that were taken during this radar campaign, we ...

Pradipta, Rezy

2006-01-01T23:59:59.000Z

150

Focused synthetic aperture radar processing of ice-sounder data collected over the Greenland ice sheet  

E-Print Network [OSTI]

We developed a synthetic aperture radar (SAR) processing algorithm for airborne/spaceborne ice-sounding radar systems and applied it to data collected in Greenland. By using focused SAR (phase-corrected coherent averaging), we improved along...

Legarsky, J.; Gogineni, Sivaprasad; Akins, T. L.

2001-10-01T23:59:59.000Z

151

Accuracy and resolution of shuttle radar topography mission data Bridget Smith and David Sandwell  

E-Print Network [OSTI]

Accuracy and resolution of shuttle radar topography mission data Bridget Smith and David Sandwell: General or miscellaneous. Citation: Smith, B., and D. Sandwell, Accuracy and resolution of shuttle radar

Sandwell, David T.

152

Volume Comparison  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500IIVasudhaSurface. | EMSLVisualizingwith SalicylamideVolume

153

FMCW radars for snow research Hans-Peter Marshall a,b,, Gary Koh a  

E-Print Network [OSTI]

-available impulse radars are currently used operationally in Scandinavia's deep snow packs (e.g. Sand and Bruland

Marshall, Hans-Peter

154

Wideband Waveform Design principles for Solid-state Weather Radars  

SciTech Connect (OSTI)

The use of solid-state transmitter is becoming a key part of the strategy to realize a network of low cost electronically steered radars. However, solid-state transmitters have low peak powers and this necessitates the use of pulse compression waveforms. In this paper a frequency diversity wideband waveforms design is proposed to mitigate low sensitivity of solid-state transmitters. In addition, the waveforms mitigate the range eclipsing problem associated with long pulse compression. An analysis of the performance of pulse compression using mismatched compression filters designed to minimize side lobe levels is presented. The impact of range side lobe level on the retrieval of Doppler moments are presented. Realistic simulations are performed based on CSU-CHILL radar data and Center for Collaborative Adaptive Sensing of the Atmosphere (CASA) Integrated Project I (IP1) radar data.

Bharadwaj, Nitin; Chandrasekar, V.

2012-01-01T23:59:59.000Z

155

Receiver Antenna Array for a Multichannel Sense-and-Avoid Radar for Small UAVs  

E-Print Network [OSTI]

Receiver Antenna Array for a Multichannel Sense-and-Avoid Radar for Small UAVs Jose Francisco for use in a sense-and-avoid radar for use in the Cessna C-172 and small Unmanned Aerial Vehicles (UAVs. . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . ..10 1.1.1 Multichannel Sense-and-Avoid Radar for UAVs. . . . . . . . . . . . . . . . . . . . . . ...10

Kansas, University of

156

ARRA-funded Cloud Radar Development for the Department of Energy's ARM Climate Research Facility  

E-Print Network [OSTI]

ARRA-funded Cloud Radar Development for the Department of Energy's ARM Climate Research Facility assembler jobs were saved because of this large order. ProSensing is also planning to engage a local defense for similar cloud radar contracts for customers in India, China and Korea. By developing these complex radar

157

A New Coherent Radar for Ice Sounding in Greenland A. Moussessian  

E-Print Network [OSTI]

A New Coherent Radar for Ice Sounding in Greenland A. Moussessian 1 , R.L. Jordan 1 , E. Rodriguez of this radar on board a P-3 aircraft took place in May of 1999 over Greenland with successful results blanking. The first deployment of this radar took place in May of 1999 in Greenland. During this deployment

Kansas, University of

158

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

E-Print Network [OSTI]

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

Reich, Brian J.

159

A Low Noise Active Integrated Antenna Receiver for Monopulse Radar Applications  

E-Print Network [OSTI]

radiation pattern suitable for monopulse radar applications. Simulation and measurement methodology- polarization levels has been demonstrated. An FMCW radar transceiver using a quasi-Yagi antenna array has beenA Low Noise Active Integrated Antenna Receiver for Monopulse Radar Applications Sylvia Lin, Yongxi

Itoh, Tatsuo

160

ERADERAD 20062006Proceedings ofProceedings of Detecting weather radar clutter  

E-Print Network [OSTI]

of precipitation for every pixel in a Meteosat-8 scene. Via pixel-level image fusion of the radar data weather radar clutter 2.2 Nowcasting SAF products Measuring and mapping of precipitation from spaceERADERAD 20062006Proceedings ofProceedings of Detecting weather radar clutter using satellite

Note: This page contains sample records for the topic "radar sample volume" 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

Update on the European Weather Radar Network Iwan Holleman, Laurent Delobbe, and Anton Zgonc  

E-Print Network [OSTI]

(EARS) I. INTRODUCTION The tradition of weather radar collaboration at the European level dates back to COST 72 (Measurement of precipitation by radar) which started in 1979 and which presented its final reUpdate on the European Weather Radar Network (OPERA) Iwan Holleman, Laurent Delobbe, and Anton

Stoffelen, Ad

162

P2.2 Segmenting Radar Reflectivity Data using Texture V. Lakshmanan1,2  

E-Print Network [OSTI]

with a different level of detail. Radar data algorithms (e.g: Wolf- son et al. (1999); Johnson et al. (1998)) have to partition the image values into the K bins. The measurement space (the radar reflectivity valuesP2.2 Segmenting Radar Reflectivity Data using Texture V. Lakshmanan1,2 , R. Rabin1,3 , V. De

Lakshmanan, Valliappa

163

Determining weather radar antenna pointing using signals detected from the sun at low antenna elevations  

E-Print Network [OSTI]

Determining weather radar antenna pointing using signals detected from the sun at low antenna radiation of the sun for checking of the antenna alignment and of the sensitivity of the receiver chain is a well established method in weather radar maintenance, and radar manufacturers offer sun calibration

Stoffelen, Ad

164

Cloud radar Doppler spectra in drizzling stratiform clouds: 2. Observations and microphysical modeling of drizzle evolution  

E-Print Network [OSTI]

Cloud radar Doppler spectra in drizzling stratiform clouds: 2. Observations and microphysical I, the influence of cloud microphysics and dynamics on the shape of cloud radar Doppler spectra in warm stratiform clouds was discussed. The traditional analysis of radar Doppler moments was extended

165

Vertical Structure of Tropical Cyclone Rainbands as seen by the TRMM Precipitation Radar  

E-Print Network [OSTI]

1 Vertical Structure of Tropical Cyclone Rainbands as seen by the TRMM Precipitation Radar Deanna A's Precipitation Radar (TRMM PR) show the vertical structure of tropical cyclone rainbands. Radar-echo statistics show that rainbands have a two-layered structure, with distinct modes separated by the melting layer

Houze Jr., Robert A.

166

A radar study of the interaction between lightning and precipitation  

SciTech Connect (OSTI)

A radar study was made of the interaction between lightning and precipitation with the 430 MHz Doppler radar at the Arecibo Observatory in Puerto Rico. On one occasion, the spectral power at Doppler velocities near that corresponding to the updraft increased substantially within a fraction of a second after a discharge was detected in the beam. Calculations were made to simulate the effect of an electric field change on mean Doppler velocity for a distribution of droplets in a thunderstorm. 13 refs., 4 figs.

Holden, D.N.; Ulbrich, C.W.

1988-01-01T23:59:59.000Z

167

Tornado identification from analyses of digital radar data  

E-Print Network [OSTI]

of Yukon, 40 km north- west of NSSL. Later, a cell to the northwest of Oklahoma City developed to str'ong intensity and a funnel cloud was reported over Tinker AFB at 1930 CST. Hist~or of the Yukon Storm During the afternoon, the squall line moved... signature 1n analyses of digital radar data from ceni;ra 1 Oklahoma during the Spring. The data were collected by the l0-cm WSR-57 radar at the National Severe S torms Laboratory at Ilorman, Oklahoma. Three types of numerical analyses were used in th1s...

Pittman, Donald Wayne

2012-06-07T23:59:59.000Z

168

Science Goals for the ARM Recovery Act Radars  

SciTech Connect (OSTI)

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

JH Mather

2012-05-29T23:59:59.000Z

169

Fast and Easy Sample Dialysis When downstream quality matters,  

E-Print Network [OSTI]

samples with convenience · No need to use a syringe to load or remove samples. Simply load your sampleL Milli-Q® water Conductivity standard curve using NaCl Protein recovery after 5 hours: 89% Volume

Lebendiker, Mario

170

Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities  

DOE Patents [OSTI]

A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with atypical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control. Techniques are used to reduce clutter in the receive signal, such as decoupling the receive and transmit cavities by placing a space between them, using conductive or radiative damping elements on the cavities, and using terminating plates on the sides of the openings.

McEwan, Thomas E. (Livermore, CA)

1998-01-01T23:59:59.000Z

171

Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities  

DOE Patents [OSTI]

A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with atypical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control. Techniques are used to reduce clutter in the receive signal, such as decoupling the receive and transmit cavities by placing a space between them, using conductive or radiative damping elements on the cavities, and using terminating plates on the sides of the openings. 20 figs.

McEwan, T.E.

1998-06-30T23:59:59.000Z

172

Cloud Effects on Radiative Heating Rate Profiles over Darwin using ARM and A-train Radar/Lidar Observations  

SciTech Connect (OSTI)

Observations of clouds from the ground-based U.S. Department of Energy Atmospheric Radiation Measurement program (ARM) and satellite-based A-train are used to compute cloud radiative forcing profiles over the ARM Darwin, Australia site. Cloud properties are obtained from both radar (the ARM Millimeter Cloud Radar (MMCR) and the CloudSat satellite in the A-train) and lidar (the ARM Micropulse lidar (MPL) and the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite in the A-train) observations. Cloud microphysical properties are taken from combined radar and lidar retrievals for ice clouds and radar only or lidar only retrievals for liquid clouds. Large, statistically significant differences of up to 1.43 K/day exist between the mean ARM and A-train net cloud radiative forcing profiles. The majority of the difference in cloud radiative forcing profiles is shown to be due to a large difference in the cloud fraction above 12 km. Above this altitude the A-train cloud fraction is significantly larger because more clouds are detected by CALIPSO than by the ground-based MPL. It is shown that the MPL is unable to observe as many high clouds as CALIPSO due to being more frequently attenuated and a poorer sensitivity even in otherwise clear-sky conditions. After accounting for cloud fraction differences and instrument sampling differences due to viewing platform we determined that differences in cloud radiative forcing due to the retrieved ice cloud properties is relatively small. This study demonstrates that A-train observations are better suited for the calculation cloud radiative forcing profiles. In addition, we find that it is necessary to supplement CloudSat with CALIPSO observations to obtain accurate cloud radiative forcing profiles since a large portion of clouds at Darwin are detected by CALIPSO only.

Thorsen, Tyler J.; Fu, Qiang; Comstock, Jennifer M.

2013-06-11T23:59:59.000Z

173

Climatological study of radar echo pictures from Albrook Air Force Base, Panama  

E-Print Network [OSTI]

of the radar beam above the surface of the earth for a two degree antenna tilt (From AWS, 1955). . 9 Echo occurrence chart of radar data observed at Albrook AFB, Panama, for the month of January, 1962 Echo occurrence chart of radar date observed... at Albrook AFB, Panama, for the month of April, 1961 Echo occurrence chart of radar data observed at Albrook AFB, Panama, for the month of July, 1961 16 17 18 Topography and radar echo occurrence profiles for a circle of 75-statute-mile radius from...

Bowen, Christopher

2012-06-07T23:59:59.000Z

174

Progress reports for October 1994 -- Joint UK/US Radar Program  

SciTech Connect (OSTI)

This report gives the principle investigator, objectives, recent accomplishments, milestones for reporting period, expected milestones for ensuing period, other issues and planned expenditures for each of the following programs: airborne RAR/SAR; radar data processor; ground-based SAR signal processing workstation; static airborne radar; multi-aperture space-time array radar; radar field experiments; data analysis and detection theory; management; E-2C radar data analysis; modeling and analysis; current meter array; UCSB wave tank; stratified flow facility; and IR sensor system. Finally the budget status is given.

Twogood, R.E.; Brase, J.M.; Mantrom, D.D.; Chambers, D.H.; Robey, H.F.

1994-11-18T23:59:59.000Z

175

Soil sampling kit and a method of sampling therewith  

DOE Patents [OSTI]

A soil sampling device and a sample containment device for containing a soil sample is disclosed. In addition, a method for taking a soil sample using the soil sampling device and soil sample containment device to minimize the loss of any volatile organic compounds contained in the soil sample prior to analysis is disclosed. The soil sampling device comprises two close fitting, longitudinal tubular members of suitable length, the inner tube having the outward end closed. With the inner closed tube withdrawn a selected distance, the outer tube can be inserted into the ground or other similar soft material to withdraw a sample of material for examination. The inner closed end tube controls the volume of the sample taken and also serves to eject the sample. The soil sample containment device has a sealing member which is adapted to attach to an analytical apparatus which analyzes the volatile organic compounds contained in the sample. The soil sampling device in combination with the soil sample containment device allow an operator to obtain a soil sample containing volatile organic compounds and minimizing the loss of the volatile organic compounds prior to analysis of the soil sample for the volatile organic compounds.

Thompson, Cyril V. (Knoxville, TN)

1991-01-01T23:59:59.000Z

176

Soil sampling kit and a method of sampling therewith  

DOE Patents [OSTI]

A soil sampling device and a sample containment device for containing a soil sample is disclosed. In addition, a method for taking a soil sample using the soil sampling device and soil sample containment device to minimize the loss of any volatile organic compounds contained in the soil sample prior to analysis is disclosed. The soil sampling device comprises two close fitting, longitudinal tubular members of suitable length, the inner tube having the outward end closed. With the inner closed tube withdrawn a selected distance, the outer tube can be inserted into the ground or other similar soft material to withdraw a sample of material for examination. The inner closed end tube controls the volume of the sample taken and also serves to eject the sample. The soil sample containment device has a sealing member which is adapted to attach to an analytical apparatus which analyzes the volatile organic compounds contained in the sample. The soil sampling device in combination with the soil sample containment device allows an operator to obtain a soil sample containing volatile organic compounds and minimizing the loss of the volatile organic compounds prior to analysis of the soil sample for the volatile organic compounds. 11 figures.

Thompson, C.V.

1991-02-05T23:59:59.000Z

177

Assessment Of The Wind Farm Impact On The Radar  

E-Print Network [OSTI]

This study shows the means to evaluate the wind farm impact on the radar. It proposes the set of tools, which can be used to realise this objective. The big part of report covers the study of complex pattern propagation factor as the critical issue of the Advanced Propagation Model (APM). Finally, the reader can find here the implementation of this algorithm - the real scenario in Inverness airport (the United Kingdom), where the ATC radar STAR 2000, developed by Thales Air Systems, operates in the presence of several wind farms. Basically, the project is based on terms of the department "Strategy Technology & Innovation", where it has been done. Also you can find here how the radar industry can act with the problem engendered by wind farms. The current strategies in this area are presented, such as a wind turbine production, improvements of air traffic handling procedures and the collaboration between developers of radars and wind turbines. The possible strategy for Thales as a main pioneer was given as ...

Norman, Evgeny D

2010-01-01T23:59:59.000Z

178

Development and Improvement of Airborne Remote Sensing Radar Platforms  

E-Print Network [OSTI]

, and several structures are also developed to enable a NASA P-3 to support a 15-element MCoRDS array, as well as three other radar antenna-arrays used for cryospheric surveying. Together, these aircraft have flown almost 200 missions and collected 550 TB...

Arnold, Emily J.

2013-08-31T23:59:59.000Z

179

Synthetic Aperture Radar Imaging with Motion Estimation and Liliana Borcea  

E-Print Network [OSTI]

Callaghan George Papanicolaou Abstract We introduce from first principles a synthetic aperture radar (SAR calibrated small apertures, (b) preliminary motion estimation from the data using the Wigner transform-band persistent surveillance SAR is a specific application that is covered by our analysis. Detailed numerical

Papanicolaou, George C.

180

Synthetic aperture radar and interferometry development at Sandia National Laboratories  

SciTech Connect (OSTI)

Environmental monitoring, earth-resource mapping, and military systems require broad-area imaging at high resolutions. Many times the imagery must be acquired in inclement weather or during night as well as day. Synthetic aperture radar (SAR) provides such a capability. SAR systems take advantage of the long-range propagation characteristics of radar signals and the complex information processing capability of modern digital electronics to provide high resolution imagery. SAR complements photographic and other optical imaging capabilities because of the minimum constrains on time-of-day and atmospheric conditions and because of the unique responses of terrain and cultural targets to radar frequencies. Interferometry is a method for generating a three-dimensional image of terrain. The height projection is obtained by acquiring two SAR images from two slightly differing locations. It is different from the common method of stereoscopic imaging for topography. The latter relies on differing geometric projections for triangulation to define the surface geometry whereas interferometry relies on differences in radar propagation times between the two SAR locations. This paper presents the capabilities of SAR, explains how SAR works, describes a few SAR applications, provides an overview of SAR development at Sandia, and briefly describes the motion compensation subsystem.

NONE

1993-04-01T23:59:59.000Z

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


181

2003 Mercury Computer Systems, Inc. Beamforming for Radar  

E-Print Network [OSTI]

© 2003 Mercury Computer Systems, Inc. Beamforming for Radar Systems on COTS Heterogeneous ComputingHeterogeneous Computing PlatformsPlatforms Jeffrey A. Rudin Mercury Computer Systems, Inc. High Performance Embedded Computing (HPEC) Conference September 23, 2003 #12;2© 2003 Mercury Computer Systems, Inc. Outline

Kepner, Jeremy

182

Automatic Radar Antenna Scan Type Recognition in Electronic  

E-Print Network [OSTI]

Automatic Radar Antenna Scan Type Recognition in Electronic Warfare BILLUR BARSHAN BAHAEDDIN ERAVCI in electronic warfare (EW). The stages of the algorithm are scan period estimation, preprocessing (normalization Continuous-wave EW Electronic warfare EM Electromagnetic LFM Linear frequency modulation DTW Dynamic time

Barshan, Billur

183

Efficiency evaluation of ground-penetrating radar by the results of measurement of dielectric properties of soils  

SciTech Connect (OSTI)

The work considers the depth evaluation of ground penetrating radar (GPR) surveys using the attenuation factor of electromagnetic radiation in a medium. A method of determining the attenuation factor of low-conductive non-magnetic soils is developed based on the results of direct measurements of permittivity and conductivity of soils in the range of typical frequencies of GPR. The method relies on measuring the shift and width of the resonance line after a soil sample is being placed into a tunable cavity resonator. The advantage of this method is the preservation of soil structure during the measurement.

Khakiev, Zelimkhan; Kislitsa, Konstantin; Yavna, Victor [Rostov State Transport University, Rostov-on-Don (Russian Federation)

2012-12-15T23:59:59.000Z

184

Congrs SHF : Hydromtrie 2013, Paris, 15-16 mai 2013 Dramais et al. Jaugeage par radar mobile JAUGEAGE PAR RADAR MOBILE,  

E-Print Network [OSTI]

measurement using SVR (Surface Velocity Radar) can be used to measure river discharge during floods surface velocities, additional measurements (bathymetry, velocity profiles, water level) are needed the radar method and other conventional discharge measurements. The quality of the results is very

Boyer, Edmond

185

Forensic Application of FM-CW and Pulse Radar  

SciTech Connect (OSTI)

Ground-penetrating radar (GPR) technology has supplied vital assistance in criminal investigations. However, law enforcement personnel desire further developments such that the technology is rapidly deployable, and that it provides both a simple user interface and sophisticated target identification. To assist in the development of target identification algorithms, our efforts involve gathering background GPR data for the various site conditions and circumstances that often typify clandestine burials. For this study, forensic anthropologists established shallow-grave plots at The University of Tennessee Anthropological Research Facility (ARF) that are specific to GPR research. These plots contain donated human cadavers lying in various configurations and depths, surrounded by assorted construction material and backfill debris. We scanned the plots using two GPR technologies: (1) a multi-frequency synthetic-aperture FM-CW radar (200-700 MHz) (GPR-X) developed by the U.S. Department of Energy's (DOE) Special Technologies Laboratory (STL), Bechtel Nevada (Koppenjan et al., 2000), and (2) a commercial pulse radar (SIR-20) manufactured by Geophysical Survey Systems, Inc. (400 and 900 MHz)(GSSI). The sweep-frequency data show the large biological mass decomposing within the torso as encircled ''hot spots.'' The 400-MHz pulse radar exhibit major horizontal reflectors above the body, with shadow reflectors (horizontal multiples) occurring beneath the body at 60 cm depth. The 400-MHz antenna was able to discern the grave walls and folded tarp covering the lower body. Under these moist, clay-rich conditions, the 900-MHz antenna was able to penetrate slightly beyond 30 cm beneath the concrete layer. However, neither system was able to penetrate beyond a one meter depth in the moist, clay-rich soil (fine, mixed, thermic Typic Paleudalf). Example scans from each system are provided, along with a discussion of the survey protocol and general performance.

S. K. Koppenjan; R. S. Freeland; M. L. Miller; R. E. Yoder

2003-01-01T23:59:59.000Z

186

Radar antenna pointing for optimized signal to noise ratio.  

SciTech Connect (OSTI)

The Signal-to-Noise Ratio (SNR) of a radar echo signal will vary across a range swath, due to spherical wavefront spreading, atmospheric attenuation, and antenna beam illumination. The antenna beam illumination will depend on antenna pointing. Calculations of geometry are complicated by the curved earth, and atmospheric refraction. This report investigates optimizing antenna pointing to maximize the minimum SNR across the range swath.

Doerry, Armin Walter; Marquette, Brandeis [General Atomics Aeronautical Systems, Inc., San Diego, CA

2013-01-01T23:59:59.000Z

187

Applicability of radar observations to the prediction of storm runoff  

E-Print Network [OSTI]

of Depaverne. (Yiembe~ 1967 (Yonwh) (Yea ) ABSTRACT Rainfall-runoff relaL'ronships fox 18 storms over the Little Nashita River basin in Oklahoma are studied in order to develop a method for predicting storm losses based on weather-radar observational..., for the use of their computer facilities. Credit is due Mr. M. A. Hartman, Chief Research Engineer, Agricultural Research Service, Chickasha, Oklahoma, for his assistance in obtaining treamflow and rainfall data from records maintained by the Agricultural...

Johnson, Odell Monroe

2012-06-07T23:59:59.000Z

188

Radar echo processing with partitioned de-ramp  

DOE Patents [OSTI]

The spurious-free dynamic range of a wideband radar system is increased by apportioning de-ramp processing across analog and digital processing domains. A chirp rate offset is applied between the received waveform and the reference waveform that is used for downconversion to the intermediate frequency (IF) range. The chirp rate offset results in a residual chirp in the IF signal prior to digitization. After digitization, the residual IF chirp is removed with digital signal processing.

Dubbert, Dale F.; Tise, Bertice L.

2013-03-19T23:59:59.000Z

189

CHAPTER 2: Analysis of cloud radar data 21 1000 1030 1100 1130 1200 1230 1300 1330  

E-Print Network [OSTI]

, and the corresponding noise­ equivalent reflectivity at 1 km measured by the 94 GHz radar (using the cloud­free gates the sensitivity of the radar is to subtract an estimate of the noise â?? N from the measured average power â?¢ P of magnitude below the noise level. Of­ ten rain radars simply reject the data that fall below a particular

Hogan, Robin

190

Digital meteorological radar data compared with digital infrared data from a geostationary meteorological satellite  

E-Print Network [OSTI]

OF CONTENTS Page ABSTRACT. ACKNOWLEDGMENTS. DEDICATION . iv vi TABLE OF CONTENTS . vii LIST OF TABLES. IX LIST OF FIGURES . LIST OF ACRONYMS CHAPTER xii I. INTRODUCTION 1. The Need for This Investigation 2. Present Status of Research Relating... to This Investigation 3. Objectives of the Investigation 4. Techniques and Scope of the Investigation. II. METEOROLOGICAL RADAR DATA . 10 1. Basic Radar Theory . 2. Earth Curvature Correction . 3. The TAMU Weather Radar System. 4. Data Reduction and Display 10...

Henderson, Rodney Stuart

1979-01-01T23:59:59.000Z

191

Analog FIR Filter Used for Range-Optimal Pulsed Radar Applications  

E-Print Network [OSTI]

.......................................................................................................... 1 1.1. Radar system ...................................................................................................... 2 1.2 Matched filter ...................................................................................................... 4... 1.3 Analog FIR matched filters ................................................................................. 4 1.4 Thesis organization ............................................................................................. 6 2...

Su, Eric Chen

2014-08-13T23:59:59.000Z

192

Probability distribution of low-altitude propagation loss from radar sea clutter data  

E-Print Network [OSTI]

: propagation loss estimation, radar clutter, probabilistic inversion Citation: Gerstoft, P., W. S. Hodgkiss, L within the marine atmospheric surface layer [Liu et al., 1979]. The refractivity profile above

Buckingham, Michael

193

Improving ISR Radar Utilization (How I quit blaming the user and made the radar easier to use).  

SciTech Connect (OSTI)

In modern multi - sensor multi - mode Intelligence, Surveillance, and Reconnaissance ( ISR ) platforms, the plethora of options available to a sensor/payload operator are quite large, leading to an over - worked operator often down - selecting to favorite sensors an d modes. For example, Full Motion Video (FMV) is justifiably a favorite sensor at the expense of radar modes, even if radar modes can offer unique and advantageous information. The challenge is then to increase the utilization of the radar modes in a man ner attractive to the sensor/payload operator. We propose that this is best accomplished by combining sensor modes and displays into 'super - modes'. - 4 - Acknowledgements This report is the result of a n unfunded research and development activity . Sandia Natio nal Laboratories is a multi - program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE - AC04 - 94AL850 00.

Doerry, Armin W.

2014-08-01T23:59:59.000Z

194

Cylinder inspection logs and analytical data LCRU-001 through LCRU-063. Volume 3, Final report  

SciTech Connect (OSTI)

ERC sampled, analyzed, and recontainerized when necessary gas cylinders of various chemicals in storage at LANL TA-54 Area L. This report summarizes the operation. This is Volume 3 of five volumes.

NONE

1994-06-23T23:59:59.000Z

195

Porosity, single-phase permeability, and capillary pressure data from preliminary laboratory experiments on selected samples from Marker Bed 139 at the Waste Isolation Pilot Plant. Volume 1 of 3: Main report, appendix A  

SciTech Connect (OSTI)

Three groups of core samples from Marker Bed 139 of the Salado Formation at the Waste Isolation Pilot Plant (WIPP) were analyzed to provide data to support the development of numerical models used to predict the long-term hydrologic and structural response of the WIPP repository. These laboratory experiments, part of the FY93 Experimental Scoping Activities of the Salado Two-Phase Flow Laboratory Program, were designed to (1) generate WIPP-specific porosity and single-phase permeability data, (2) provide information needed to design and implement planned tests to measure two-phase flow properties, including threshold pressure, capillary pressure, and relative permeability, and (3) evaluate the suitability of using analog correlations for the Salado Formation to assess the long-term performance of the WIPP. This report contains a description of the boreholes core samples, the core preparation techniques used, sample sizes, testing procedures, test conditions, and results of porosity and single-phase permeability tests performed at three laboratories: TerraTek, Inc. (Salt Lake City, UT), RE/SPEC, Inc. (Rapid City, SD), and Core Laboratories-Special Core Analysis Laboratory (Carrollton, TX) for Rock Physics Associates. In addition, this report contains the only WIPP-specific two-phase-flow capillary-pressure data for twelve core samples. The WIPP-specific data generated in this laboratory study and in WIPP field-test programs and information from suitable analogs will form the basis for specification of single- and two-phase flow parameters for anhydrite markers beds for WIPP performance assessment calculations.

Howarth, S.M.; Christian-Frear, T.

1997-08-01T23:59:59.000Z

196

E-Print Network 3.0 - aperture radar interferometry Sample Search...  

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

path difference between apertures. Expressions are given for the measured Source: Fienup, James R. - Institute of Optics & Department of Electrical and Computer Engineering,...

197

E-Print Network 3.0 - aperture radar processing Sample Search...  

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

imaging). We... improved resolution from microwave synthetic-aperture ... Source: Fienup, James R. - Institute of Optics & Department of Electrical and Computer Engineering,...

198

E-Print Network 3.0 - aguda estudio radar Sample Search Results  

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

and Ecology 96 RESULTADOS DE LA INVESTIGACIN EN EL PARQUE NACIONAL DE DOANA Summary: seguimiento) "Estudio sobre la capacidad de carga de la marisma II". Soriguer Escofet,...

199

E-Print Network 3.0 - asteroid radar research Sample Search Results  

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

situ ... Source: Scheeres, Daniel J. - Department of Aerospace Engineering, University of Michigan Collection: Physics ; Engineering 14 Physical Processes in the Solar System An...

200

Computer News, Volume 3  

E-Print Network [OSTI]

[mandelbrot set] MATH DEPT Computer News, Volume 3. How to take advantage of the newer, faster machines on our network ...

Note: This page contains sample records for the topic "radar sample volume" 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

Computer News, Volume 2  

E-Print Network [OSTI]

[mandelbrot set] MATH DEPT Computer News, Volume 2. How to handle .pdf files on the web: acroread, distill, and Netscape ...

202

UNLOCKING THE TREASURE CHEST OF LEVEL-II RADAR DATA: LESSONS IN TECHNOLOGY TRANSFER POLICY FOR THE ATMOSPHERIC SCIENCES  

E-Print Network [OSTI]

P 1.6 UNLOCKING THE TREASURE CHEST OF LEVEL-II RADAR DATA: LESSONS IN TECHNOLOGY TRANSFER POLICY This analysis of Level-II radar data presents a great success story about partnerships in technology transfer

203

Connectivity in a UAV Multi-static Radar Network David W. Casbeer  

E-Print Network [OSTI]

Connectivity in a UAV Multi-static Radar Network David W. Casbeer and A. Lee Swindlehurst This paper describes a multi-static radar network composed of multiple unmanned air vehicles (UAVs). Time-delay and Doppler measurements taken by the UAV team are passed to a centralized processor to determine optimal

Swindlehurst, A. Lee

204

Soil texture estimation over a semi-arid area using TERRASAR-X radar data  

E-Print Network [OSTI]

Soil texture estimation over a semi-arid area using TERRASAR-X radar data M. Zribi1 , F. Kotti1 , Z Abstract In this paper, it is proposed to use TERRASAR-X data for analysis and estimation of soil surface. Simultaneously to TERRASAR-X radar acquisitions, ground measurements (texture, soil moisture and roughness) were

Paris-Sud XI, Université de

205

Lagrangian Structures in Very High-Frequency Radar Data and Optimal Pollution Timing  

E-Print Network [OSTI]

Lagrangian Structures in Very High-Frequency Radar Data and Optimal Pollution Timing Francois radar-based pollution release scheme using the hidden flow structure reduces the effect of industrial pollution in the coastal environment. INTRODUCTION The release of pollution in coastal areas [1, 2, 3] can

Marsden, Jerrold

206

Optimal Pollution Mitigation in Monterey Bay Based on Coastal Radar Data and Nonlinear  

E-Print Network [OSTI]

Optimal Pollution Mitigation in Monterey Bay Based on Coastal Radar Data and Nonlinear Dynamics run-off which is a typical source of pollution in the bay. We show that a HF radar-based pollution release scheme using this flow structure reduces the impact of pollution on the coastal envi- ronment

Marsden, Jerrold

207

Radar Sounding of Glaciers in Greenland C. Allen, B, Wohletz, and S, Gogineni  

E-Print Network [OSTI]

Radar Sounding of Glaciers in Greenland C. Allen, B, Wohletz, and S, Gogineni The University on several flights over Greenland glaciers during the summer of 1995. The radar data were collected the theory and present results of the homomorphic deconvolution procedure. INTRODUCTION The Greenland

Kansas, University of

208

Planning of Low-Cost 77-GHz Radar Transceivers for Automotive Applications  

E-Print Network [OSTI]

Planning of Low-Cost 77-GHz Radar Transceivers for Automotive Applications H. Ameri, A. Attaran & M. Moghavvemi University ofMalaya INTRODUCTION The use of electronics in the automotive industry will reach (or the position and speed as with other components used in the automotive industry, radars will find widespread

Paris-Sud XI, Université de

209

A comparison of velocity measurements from the CUTLASS Finland radar and the EISCAT UHF system  

E-Print Network [OSTI]

A comparison of velocity measurements from the CUTLASS Finland radar and the EISCAT UHF system J. A January 1999 Abstract. The CUTLASS Finland radar, which com- prises an integral part of the Super irregularities within a ®eld-of- view which extends over some four million square kilometres. Within the Finland

Paris-Sud XI, Université de

210

Finland HF and Esrange MST radar observations of polar mesosphere summer echoes  

E-Print Network [OSTI]

Finland HF and Esrange MST radar observations of polar mesosphere summer echoes Tadahiko Ogawa1 (200x) xx:1­8 Finland HF and Esrange MST radar observations of polar mesosphere summer echoes Tadahiko in Finland are presented. The echoes were detected at four frequencies of 9, 11, 13 and 15 MHz at slant

Kirkwood, Sheila

211

Global mapping and characterization of Titan's dune fields with Cassini: Correlation between RADAR and VIMS observations  

E-Print Network [OSTI]

and VIMS observations S. Rodriguez a, , A. Garcia a , A. Lucas a , T. Appéré a , A. Le Gall b , E. Reffet the Cassini RADAR and VIMS (Visual and Infrared Mapping Spectrometer) images ­ the latter being empirically. Furthermore, the strong correlation between RADAR-mapped dunes and the VIMS ``dark brown'' unit (72%) allows

Narteau, Clément

212

Development of a statistical procedure for detecting the number of signals in a radar measurement  

E-Print Network [OSTI]

Development of a statistical procedure for detecting the number of signals in a radar measurement P multichannel multipulse radar data. A unique aspect of the propo is that it predicts a confidence level number. Of concern is the development of a procedure for computing the number of signals in a measurement data vector

Adve, Raviraj

213

Large density fluctuations in the martian ionosphere as observed by the Mars Express radar sounder  

E-Print Network [OSTI]

in the martian ionosphere. The density measurements show a persistent level of large fluctuations, sometimesLarge density fluctuations in the martian ionosphere as observed by the Mars Express radar sounder Advanced Radar for Subsurface and Ionosphere Sounding) instrument on the Mars Express spacecraft provides

Gurnett, Donald A.

214

A Wideband Radar for Mapping Internal Layers in the Polar Icesheets for Estimating Accumulation Rate  

E-Print Network [OSTI]

at the IGARSS meeting [1]. We have developed an operational radar system for routine measurement. This system of the simulation results and laboratory measurements of the radar system. Also we will present analysis measurements in May 2002. I. INTRODUCTION Over the last century sea level rose by about 15 cm. The sea level

Kansas, University of

215

A DDS and PLL-based X-band FMCW Radar System  

E-Print Network [OSTI]

such as level meter of liquid tanks, collision avoidance, and other short range measurement applications [1A DDS and PLL-based X-band FMCW Radar System Yun-Taek Im, Jee-Hoon Lee, and Seong-Ook Park source, and the PLL is controlled by it. The bandwidth and the sweep time of the FMCW radar system

Park, Seong-Ook

216

QUANTITATIVE ECOLOGY Airborne Radar Observations of the Flight Behavior of Small Insects in  

E-Print Network [OSTI]

, with the vertical air velocity measured at Ã?ight level. We hypothesize that the gregarious behavior of small insectsQUANTITATIVE ECOLOGY Airborne Radar Observations of the Flight Behavior of Small Insects of insects in the convective boundary layer (CBL) is examined by means of proÃ?ling airborne Doppler radar

Geerts, Bart

217

Strengths and limitations of MST radar measurements of middle-atmosphere winds  

E-Print Network [OSTI]

levels of the atmosphere. 1 Introduction Radars used for atmospheric wind measurements cover a broadStrengths and limitations of MST radar measurements of middle-atmosphere winds W. K. Hocking for many years to measure atmospheric motions over a wide range of altitudes, from ground level up

Paris-Sud XI, Université de

218

Upper Air Wind Measurements by Weather Radar Iwan Holleman, Henk Benschop, and Jitze van der Meulen  

E-Print Network [OSTI]

or assimilated into numerical weather prediction (NWP) models. Un- der the assumption of a linear wind field background statistics of the weather radar wind profiles against the Hirlam NWP model are at least as good of the VVP wind profiles against the Hirlam NWP model demonstrate the high quality of weather radar wind

Stoffelen, Ad

219

VALIDATION OF RAIN RATE RETRIEVALS FROM SEVIRI USING WEATHER RADAR OBSERVATIONS  

E-Print Network [OSTI]

and for improving parameterization cloud processes in numerical weather prediction (NWP) models or assimilation in these models. Although operational networks of Weather Radars are expanding over Europe and the United StatesVALIDATION OF RAIN RATE RETRIEVALS FROM SEVIRI USING WEATHER RADAR OBSERVATIONS R. A. Roebeling

Stoffelen, Ad

220

Cloud radar Doppler spectra in drizzling stratiform clouds: 1. Forward modeling and remote sensing applications  

E-Print Network [OSTI]

Cloud radar Doppler spectra in drizzling stratiform clouds: 1. Forward modeling and remote sensing broadening and drizzle growth in shallow liquid clouds remain not well understood. Detailed, cloudscale. Profiling, millimeterwavelength (cloud) radars can provide such observations. In particular, the first three

Note: This page contains sample records for the topic "radar sample volume" 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

EFFICIENT ASSIMILATION OF RADAR DATA AT HIGH RESOLUTION FOR SHORT-RANGE NUMERICAL WEATHER PREDICTION  

E-Print Network [OSTI]

-hydrostatic models, the rapid increase of computer power, and the avail- ability of full-precision radar data in real system must assimilate Doppler radar data including radial velocity and reflectivity, and combine that information with data from satellites, surface stations, and other meso- and micro-scale sensor networks

Xue, Ming

222

Vertical Structure of Tropical Cyclone Rainbands as Seen by the TRMM Precipitation Radar  

E-Print Network [OSTI]

Vertical Structure of Tropical Cyclone Rainbands as Seen by the TRMM Precipitation Radar DEANNA A Measurement Mission satellite's Precipitation Radar (TRMM PR) show the vertical structure of tropical cyclone separated by the melting layer. The ice layer is a combination of particles imported from the eyewall

Houze Jr., Robert A.

223

Vertical Structure of Tropical Cyclone Rainbands as seen by the TRMM Precipitation Radar  

E-Print Network [OSTI]

1 Vertical Structure of Tropical Cyclone Rainbands as seen by the TRMM Precipitation Radar Deanna A (TRMM PR) show the vertical structure of tropical cyclone rainbands. Radar-echo2 statistics show that rainbands have a two-layered structure, with distinct modes separated by the3 melting layer. The ice layer

Houze Jr., Robert A.

224

High Accuracy Three-Dimensional Radar Sensor Design based on Fuzzy Logic Control Approach  

E-Print Network [OSTI]

High Accuracy Three-Dimensional Radar Sensor Design based on Fuzzy Logic Control Approach Lilin Guo in target tracking. Furthermore, a fuzzy logic controller is proposed to minimize the error between Tracking, Doppler Effect, Fuzzy Logic Controller I. INTRODUCTION Typically, radar sensors are comprised

Fan, Jeffrey

225

Using Satellite Radar Data to Map and Monitor Variations in Great Lakes Ice Cover  

E-Print Network [OSTI]

Using Satellite Radar Data to Map and Monitor Variations in Great Lakes Ice Cover G.A. Leshkevich synthetic aperture radar (SAR) and scatterometer data, are used to classify and map Great Lakes ice cover and to derive freeze-up date, break- up date, and ice cover duration. These are important indicators of regional

226

Small scale turbulence and instabilities observed simultaneously by radiosondes and the MU radar.  

E-Print Network [OSTI]

Small scale turbulence and instabilities observed simultaneously by radiosondes and the MU radar. R-French field campaign devoted to study small-scale turbulence and instabilities in the lower atmosphere for retrieving small-scale turbulence parameters from ST radars. However, the dominant sources

227

Polarimetric Radar Observation Operator for a Cloud Model with Spectral Microphysics  

E-Print Network [OSTI]

-proven advantages such as hydro- meteor classification and improvement in radar data quality and rainfall modeling via improvement of micro- physical parameterization and direct assimilation of polarimetric radar the output of numerical cloud models was pioneered using the models with bulk parameterization of cloud micro

Mark, Pinsky

228

Pressurized fluidized-bed hydroretorting of eastern oil shales. Volume 4, Task 5, Operation of PFH on beneficiated shale, Task 6, Environmental data and mitigation analyses and Task 7, Sample procurement, preparation, and characterization: Final report, September 1987--May 1991  

SciTech Connect (OSTI)

The objective of Task 5 (Operation of Pressurized Fluidized-Bed Hydro-Retorting (PFH) on Beneficiated Shale) was to modify the PFH process to facilitate its use for fine-sized, beneficiated Eastern shales. This task was divided into 3 subtasks: Non-Reactive Testing, Reactive Testing, and Data Analysis and Correlations. The potential environment impacts of PFH processing of oil shale must be assessed throughout the development program to ensure that the appropriate technologies are in place to mitigate any adverse effects. The overall objectives of Task 6 (Environmental Data and Mitigation Analyses) were to obtain environmental data relating to PFH and shale beneficiation and to analyze the potential environmental impacts of the integrated PFH process. The task was divided into the following four subtasks. Characterization of Processed Shales (IGT), 6.2. Water Availability and Treatment Studies, 6.3. Heavy Metals Removal and 6.4. PFH Systems Analysis. The objective of Task 7 (Sample Procurement, Preparation, and Characterization) was to procure, prepare, and characterize raw and beneficiated bulk samples of Eastern oil shale for all of the experimental tasks in the program. Accomplishments for these tasks are presented.

Not Available

1992-03-01T23:59:59.000Z

229

Radar precipitation echo patterns associated with midwestern severe storms  

E-Print Network [OSTI]

to their appeaxattce en time-lapse Plan Position huttcator oscQloecope (Ppl scope) photogtaphs into several types including isolated and scattered echoes, widespread sheet achene, and several categories of Uae echoes. Cbkracterlstic feacures QF each of these types..., static stahfllty, aad mofsture COLLSCTlON OF DATh Radar doss used la the study coaslsssd of ppl scope Nims exposed at hMwestarn U. S. hlr Fates htr ~ Command (hDC) stathms during ths years 1955, 1956, and 1957. Proctpttatlon atteauathm could he...

Inman, Rex Lee

1959-01-01T23:59:59.000Z

230

Radar investigation of the Cote Blanche salt dome  

E-Print Network [OSTI]

THE COTE BLANCHE SALT DOME. Geology of the Cote Blanche Salt-Dome Azea. . Economic History of the Cote BLanche Salt-Dome Azea, Salt. . Oil and gas. III. ELECTROMAGNETIC WAVE PROPAGATION. . . Radar Speed in Air and in Salt. . . Velocity...' zznd i'r. mzznz 1959) . The east, south, end west flanks are nearly vertical. However, the north side oi the dome is characterised by a massive overhang. A well drilled by Shell Oil Company, Caffrey No. 1, confirmed the presence of a minimum of 3300...

Stewart, Robert Donald

1974-01-01T23:59:59.000Z

231

On the effects of atmospheric refraction on radar ground patterns  

E-Print Network [OSTI]

of superrefraction. A radial pattern of AP echoes occurred in a number of cases when there was a strong gradient of N in an elevated refractive layer, but this pattern was not nearly as common as others. Investigations [10, 13, 14, 15, 16] of the atmosphere... when the antenna elevation angle is less than 2 deg and when there is an elevated refracting layer between 1500 ft and 3000 ft above the radar in which the gradient of refractivity is greater than 48N/1000 ft. ACKNONLEDGMENT The author wishes...

Cobb, Lalovee Glendale

1963-01-01T23:59:59.000Z

232

Sandia National Laboratories: evaluating wind-turbine/radar impacts  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1development Sandia,evaluating wind-turbine/radar impacts Sandia Develops Tool to

233

Sandia National Laboratories: Oliktok Point Long Range Radar Station  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLSMolten-Salt StorageNoLong Range Radar Station Sierra Unmanned

234

Raindrop size distributions and associated effective radar reflectivity comparisons /  

E-Print Network [OSTI]

-0. 629869Z6 19. 38 - 8. 59 6. 40 5. o3 0. 0001 0. 0001 0. 0001 0. 0001 F VALUE 184. 66 PR& F 0. 0001 STD DEV 0. 58555116 R-SQUARE 0. 527609 C. V. 41. 2185 LI'ISUBI MEAN 1. 42060192 DF 1 1 1 TYPE IV SS F VALUE 25. 27055111 73... for the detection of severe weather phenomena such as tornadoes, hailstorms, and severe thunderstomns. In addition to storm applications, radar observations, concurrent with di sdrometer determi- nations of raindrop spectra, are important data for cloud physics...

Gosdin, Malcolm Elwood

1982-01-01T23:59:59.000Z

235

Digitized dual wavelength radar data from a Texas thunderstorm  

E-Print Network [OSTI]

for 1600 CST (Figure 12, p 34; Figure 14, p 37) between cells 8 and Di The maximum Z value in cell D is at least greater than 35 dBZ~ but the e 4 km gradient between the BWER and cell D is only 11 dBZ. The ti. lt of the core appears to he to the left... usually are separated by at least 150 km~ while severe thunderstorms frequently are distributed on a much smaller scale Thus~ weather radars, which can scan radial distances greater than 150 km~ serve as the most useful tool to facilitate severe storm...

Radlein, Robin Ann

1977-01-01T23:59:59.000Z

236

Statistical observations of the MLT, latitude and size of pulsed ionospheric ows with the CUTLASS Finland radar  

E-Print Network [OSTI]

Finland radar G. Provan, T. K. Yeoman Department of Physics and Astronomy, University of Leicester as detected by the CUTLASS Finland HF radar. These ¯ows have been suggested as being created scan data from the CUT- LASS Finland radar have been analysed in order to perform a statistical study

Paris-Sud XI, Université de

237

Assessment of the Performance of the Chilbolton 3-GHz Advanced Meteorological Radar for Cloud-Top-Height Retrieval  

E-Print Network [OSTI]

. The potential for this radar to make useful measurements of low-altitude liquid water cloud structure is investigated. To assess the cloud-height assignment capabilities of the 3-GHz radar, low-level cloudAssessment of the Performance of the Chilbolton 3-GHz Advanced Meteorological Radar for Cloud

238

Regional and Diurnal Variability of the Vertical Structure of Precipitation Systems in Africa Based on Spaceborne Radar Data  

E-Print Network [OSTI]

Rainfall Measuring Mission (TRMM) 2A25 radar reflectivity profiles and derived surface rain rates are used- cation of a radar brightband maximum at the freezing level, and evidence for low-level evaporation on Spaceborne Radar Data BART GEERTS AND TEFERI DEJENE Department of Atmospheric Science, University of Wyoming

Geerts, Bart

239

Vertical Velocity and Buoyancy Characteristics of Coherent Echo Plumes in the Convective Boundary Layer, Detected by a Profiling Airborne Radar  

E-Print Network [OSTI]

scatterers (mostly insects). In this study, airborne radar measurements of the CBL are combined with flight-level Layer, Detected by a Profiling Airborne Radar QUN MIAO AND BART GEERTS University of Wyoming, Laramie 20 June 2005, in final form 8 November 2005) ABSTRACT Aircraft and airborne millimeter-wave radar

Geerts, Bart

240

Comparison of Airborne and Spaceborne 95-GHz Radar Reflectivities and Evaluation of Multiple Scattering Effects in Spaceborne Measurements  

E-Print Network [OSTI]

of coincident measurements collected by an airborne 95-GHz radar during the African Monsoon Multidisci- plinary radar calibration is assessed. Collocated measurements of the spaceborne and airborne radars within the CloudSat measurements have to be corrected for this effect, if one wants to derive accurate level 2

Protat, Alain

Note: This page contains sample records for the topic "radar sample volume" 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

Uncertainties in radar echo top heights used for hail detection L. Delobbe (1) and I. Holleman (2)  

E-Print Network [OSTI]

of hail is derived from the height of the freezing level and the 45-dBZ radar echo top height (maximum is based on the comparison between reflectivity measurements from two radars on the vertical cross section hail using reflectivity measurements from this type of radar. Most hail detection methods based

Stoffelen, Ad

242

Sampling box  

DOE Patents [OSTI]

An air sampling box that uses a slidable filter tray and a removable filter cartridge to allow for the easy replacement of a filter which catches radioactive particles is disclosed.

Phillips, Terrance D. (617 Chestnut Ct., Aiken, SC 29803); Johnson, Craig (100 Midland Rd., Oak Ridge, TN 37831-0895)

2000-01-01T23:59:59.000Z

243

Merged and corrected 915 MHz Radar Wind Profiler moments  

SciTech Connect (OSTI)

The radar wind profiler (RWP) present at the SGP central facility operates at 915 MHz and was reconfigured in early 2011, to collect key sets of measurements for precipitation and boundary layer studies. The RWP is configured to run in two main operating modes: a precipitation (PR) mode with frequent vertical observations and a boundary layer (BL) mode that is similar to what has been traditionally applied to RWPs. To address issues regarding saturation of the radar signal, range resolution and maximum range, the RWP PR mode is set to operate with two different pulse lengths, termed as short pulse (SP) and long pulse (LP). Please refer to the RWP handbook (Coulter, 2012) for further information. Data from the RWP PR-SP and PR-LP modes have been extensively used to study deep precipitating clouds, especially their dynamical structure as the RWP data does not suffer from signal attenuation during these conditions (Giangrande et al., 2013). Tridon et al. (2013) used the data collected during the Mid-latitude Continental Convective Cloud Experiment (MC3E) to improve the estimation of noise floor of the RWP recorded Doppler spectra.

Jonathan Helmus,Virendra Ghate, Frederic Tridon

2014-06-25T23:59:59.000Z

244

A comparison of spotlight synthetic aperture radar image formation techniques  

SciTech Connect (OSTI)

Spotlight synthetic aperture radar images can be formed from the complex phase history data using two main techniques: (1) polar-to-cartesian interpolation followed by two-dimensional inverse Fourier transform (2DFFT), and (2) convolution backprojection (CBP). CBP has been widely used to reconstruct medical images in computer aided tomography, and only recently has been applied to form synthetic aperture radar imagery. It is alleged that CBP yields higher quality images because (1) all the Fourier data are used and (2) the polar formatted data is used directly to form a 2D Cartesian image and therefore 2D interpolation is not required. This report compares the quality of images formed by CBP and several modified versions of the 2DFFT method. We show from an image quality point of view that CBP is equivalent to first windowing the phase history data and then interpolating to an exscribed rectangle. From a mathematical perspective, we should expect this conclusion since the same Fourier data are used to form the SAR image. We next address the issue of parallel implementation of each algorithm. We dispute previous claims that CBP is more readily parallelizable than the 2DFFT method. Our conclusions are supported by comparing execution times between massively parallel implementations of both algorithms, showing that both experience similar decreases in computation time, but that CBP takes significantly longer to form an image.

Knittle, C.D.; Doren, N.E.; Jakowatz, C.V.

1996-10-01T23:59:59.000Z

245

Radar Observations of the 2011 October Draconid Outburst  

E-Print Network [OSTI]

A strong outburst of the October Draconid meteor shower was predicted for October 8, 2011. Here we present the observations obtained by the Canadian Meteor Orbit Radar (CMOR) during the 2011 outburst. CMOR recorded 61 multi-station Draconid echoes and 179 single-station overdense Draconid echoes (covering the magnitude range of +3 <= MV <= +7) between 16-20h UT on October 8, 2011. The mean radiant for the outburst was determined to be a_g = 261.9o +/- 0.3o, d_g = +55.3o +/- 0.3o (J2000) from observations of the underdense multi-station echoes. This radiant location agrees with model predictions to ~1o . The determined geocentric velocity was found to be ~10-15% lower than the model value (17.0 - 19.1 km s^-1 versus 20.4 km s^-1), a discrepancy we attribute to undercorrection for atmospheric deceleration of low density Draconid meteoroids as well as to poor radar radiant geometry during the outburst peak. The mass index at the time of the outburst was determined to be ~ 1.75 using the amplitude distribut...

Ye, Quanzhi; Campbell-Brown, Margaret D; Weryk, Robert J

2013-01-01T23:59:59.000Z

246

Merged and corrected 915 MHz Radar Wind Profiler moments  

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

The radar wind profiler (RWP) present at the SGP central facility operates at 915 MHz and was reconfigured in early 2011, to collect key sets of measurements for precipitation and boundary layer studies. The RWP is configured to run in two main operating modes: a precipitation (PR) mode with frequent vertical observations and a boundary layer (BL) mode that is similar to what has been traditionally applied to RWPs. To address issues regarding saturation of the radar signal, range resolution and maximum range, the RWP PR mode is set to operate with two different pulse lengths, termed as short pulse (SP) and long pulse (LP). Please refer to the RWP handbook (Coulter, 2012) for further information. Data from the RWP PR-SP and PR-LP modes have been extensively used to study deep precipitating clouds, especially their dynamical structure as the RWP data does not suffer from signal attenuation during these conditions (Giangrande et al., 2013). Tridon et al. (2013) used the data collected during the Mid-latitude Continental Convective Cloud Experiment (MC3E) to improve the estimation of noise floor of the RWP recorded Doppler spectra.

Jonathan Helmus,Virendra Ghate, Frederic Tridon

247

Surface sampling concentration and reaction probe  

DOE Patents [OSTI]

A method of analyzing a chemical composition of a specimen is described. The method can include providing a probe comprising an outer capillary tube and an inner capillary tube disposed co-axially within the outer capillary tube, where the inner and outer capillary tubes define a solvent capillary and a sampling capillary in fluid communication with one another at a distal end of the probe; contacting a target site on a surface of a specimen with a solvent in fluid communication with the probe; maintaining a plug volume proximate a solvent-specimen interface, wherein the plug volume is in fluid communication with the probe; draining plug sampling fluid from the plug volume through the sampling capillary; and analyzing a chemical composition of the plug sampling fluid with an analytical instrument. A system for performing the method is also described.

Van Berkel, Gary J; Elnaggar, Mariam S

2013-07-16T23:59:59.000Z

248

Construction of tree volume tables from integration of taper equations  

E-Print Network [OSTI]

equations and point sampling factors. For. Chron. 47(6): 352-354. 1972. Converting volume equations to compatible taper equations, For. Sci. 18: 241-245. Giurgiu, V. 1963, 0 metoda analitica do intoemire a tabeleor dendrometrice la calculatoarele...

Coffman, Jerry Gale

1973-01-01T23:59:59.000Z

249

Phase 1 remedial investigation report for 200-BP-1 operable unit. Volume 2  

SciTech Connect (OSTI)

Volume two contains appendices for the following: crib soil sample reference table; crib soil analytical data; and crib soil quality control data.

Not Available

1993-09-01T23:59:59.000Z

250

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

E-Print Network [OSTI]

of the radar beam for the NCAR CP-3 and CP-4 Doppler radars and the NOAA/TOGA Doppler radar as a function of beamwidth 3 Maximum ref lectivity at selected heights and the range to the closest radar, at 4. 4 km, for the convective cells from the 10-11 June... Maximum ref lectivity at selected heights and the range to the NOAA/TOGA Doppler radar, at 3. 9 km, for the convective cells from the 2 December 1988 monsoon case 21 21 51 56 63 70 76 Table 8 As in Table 7, except for the convective cells from...

Lutz, Kurt Reed

1992-01-01T23:59:59.000Z

251

LANL Volume 2_Final  

Broader source: Energy.gov (indexed) [DOE]

42 LANL * Consider developing programmatic evaluation criteria based on the October 1999 draft of Volume VI, Emergency Management Evaluations, of the DOE emergency...

252

Finite Volume Element Method  

E-Print Network [OSTI]

FVE is closely related to the control volume finite element method ... simple stencils, to apply to a fairly wide range of fluid flow equations, to effectively treat.

2003-12-06T23:59:59.000Z

253

Computer News, Volume 25  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 25. TeX for Mac OS X. plus ssh and security issues for Macs. by Rodrigo Bañuelos. NOTE: These instructions are now ...

254

Computer News, Volume 21  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 21. I came, I saw, ical. There's a great new calendar and appointment book program on our system called ical at.

255

Computer News, Volume 1  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 1. You and your .cshrc file. Click on RELOAD now. This page is frequently updated and you might be looking at an old ...

256

Computer News, Volume 36  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 36. Click on RELOAD now. This page is frequently updated and you might be looking at an old version saved by your ...

257

Computer News, Volume 19  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 19. Those damned attachments! I explain here how to extract and decode e-mail attachments of various kinds. Click on ...

258

Computer News, Volume 8  

E-Print Network [OSTI]

[mandelbrot set] MATH DEPT Computer News, Volume 8. A convenient way to do e-mail from home. by guest columnist, Donu Arapura ...

259

Computer News, Volume 20  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 20. You and your .forward file. Let's say your name is Steven Bellisandagorapahockey and your login id on math is sbellis ...

260

Computer News, Volume 37  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 37. Click on RELOAD now. This page is frequently updated and you might be looking at an old version saved by your ...

Note: This page contains sample records for the topic "radar sample volume" 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

Computer News, Volume 13  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 13. How to dork your official classlist. Click on RELOAD now. This page is frequently updated and you might be looking at ...

262

Computer News, Volume 15  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 15. How to gain access to Mathematica on a math dept SUN. Click on RELOAD now. This page is frequently updated and ...

263

Computer News, Volume 34  

E-Print Network [OSTI]

[mandelbrot set] MATH DEPT Computer News, Volume 34. Click on RELOAD now. This page is frequently updated and you might be looking at an old version

264

Computer News, Volume 33  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 33. How I teach big calculus lectures with a tablet PC. Click on RELOAD now. This page is frequently updated and you ...

265

Computer News, Volume 12  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 12. Quick and dirty math on the internet. Click on RELOAD now. This page is frequently updated and you might be ...

266

Computer News, Volume 38  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 38. Click on RELOAD now. This page is frequently updated and you might be looking at an old version saved by your ...

267

Computer News, Volume 27  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 27. How to approve Plans of Study on the web. First, make sure you know your Purdue Career Account Login and ...

268

Computer News, Volume 4  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 4. Xess, the spreadsheet. Click on RELOAD now. This page is frequently updated and you might be looking at an old ...

269

Computer News, Volume 2  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 2. How to add acroread and distill to your path. Click on RELOAD now. This page is frequently updated and you might be ...

270

Computer News, Volume 35  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 34. Click on RELOAD now. This page is frequently updated and you might be looking at an old version saved by your ...

271

Computer News, Volume 32  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 32. The new TeX and how to create the new PU Math letterhead stationery. with help from Brad Lucier, Rodrigo Bañuelos

272

Computer News, Volume 39  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 39. Click on RELOAD now. This page is frequently updated and you might be looking at an old version saved by your ...

273

Computer News, Volume 23  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 23. How to view e-mail formatted in HTML originating from the web. Click on RELOAD now. This page is frequently ...

274

Prime Supplier Sales Volumes  

Gasoline and Diesel Fuel Update (EIA)

Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State 356 Energy Information Administration Petroleum Marketing Annual 1996 Table 48. Prime...

275

Prime Supplier Sales Volumes  

Gasoline and Diesel Fuel Update (EIA)

Sales Volumes of Motor Gasoline by Grade, Formulation, PAD District, and State 356 Energy Information Administration Petroleum Marketing Annual 1997 Table 48. Prime...

276

Ultra-wideband short-pulse radar with range accuracy for short range detection  

DOE Patents [OSTI]

An ultra-wideband (UWB) radar transmitter apparatus comprises a pulse generator configured to produce from a sinusoidal input signal a pulsed output signal having a series of baseband pulses with a first pulse repetition frequency (PRF). The pulse generator includes a plurality of components that each have a nonlinear electrical reactance. A signal converter is coupled to the pulse generator and configured to convert the pulsed output signal into a pulsed radar transmit signal having a series of radar transmit pulses with a second PRF that is less than the first PRF.

Rodenbeck, Christopher T; Pankonin, Jeffrey; Heintzleman, Richard E; Kinzie, Nicola Jean; Popovic, Zorana P

2014-10-07T23:59:59.000Z

277

915-MHz Radar Wind Profiler (915RWP) Handbook  

SciTech Connect (OSTI)

The 915 MHz radar wind profiler/radio acoustic sounding system (RWP/RASS) measures wind profiles and backscattered signal strength between (nominally) 0.1 km and 5 km and virtual temperature profiles between 0.1 km and 2.5 km. It operates by transmitting electromagnetic energy into the atmosphere and measuring the strength and frequency of backscattered energy. Virtual temperatures are recovered by transmitting an acoustic signal vertically and measuring the electromagnetic energy scattered from the acoustic wavefront. Because the propagation speed of the acoustic wave is proportional to the square root of the virtual temperature of the air, the virtual temperature can be recovered by measuring the Doppler shift of the scattered electromagnetic wave.

Coulter, R

2005-01-01T23:59:59.000Z

278

Iterative Self-Dual Reconstruction on Radar Image Recovery  

SciTech Connect (OSTI)

Imaging systems as ultrasound, sonar, laser and synthetic aperture radar (SAR) are subjected to speckle noise during image acquisition. Before analyzing these images, it is often necessary to remove the speckle noise using filters. We combine properties of two mathematical morphology filters with speckle statistics to propose a signal-dependent noise filter to multiplicative noise. We describe a multiscale scheme that preserves sharp edges while it smooths homogeneous areas, by combining local statistics with two mathematical morphology filters: the alternating sequential and the self-dual reconstruction algorithms. The experimental results show that the proposed approach is less sensitive to varying window sizes when applied to simulated and real SAR images in comparison with standard filters.

Martins, Charles; Medeiros, Fatima; Ushizima, Daniela; Bezerra, Francisco; Marques, Regis; Mascarenhas, Nelson

2010-05-21T23:59:59.000Z

279

Digital hf radar observations of equatorial spread-F  

SciTech Connect (OSTI)

Modern digital ionosondes, with both direction finding and doppler capabilities can provide large scale pictures of the Spread-F irregularity regions. A morphological framework has been developed that allows interpretation of the hf radar data. A large scale irregularity structure is found to be nightward of the dusk terminator, stationary in the solar reference frame. As the plasma moves through this foehn-wall-like structure it descends, and irregularities may be generated. Localized upwellings, or bubbles, may be produced, and they drift with the background plasma. The spread-F irregularity region is found to be best characterized as a partly cloudy sky, due to the patchiness of the substructures. 13 references, 16 figures.

Argo, P.E.

1984-01-01T23:59:59.000Z

280

Lightning and radar observations of hurricane Rita landfall  

SciTech Connect (OSTI)

Los Alamos National Laboratory (LANL) owns and operates an array of Very-Low Frequency (VLF) sensors that measure the Radio-Frequency (RF) waveforms emitted by Cloud-to-Ground (CG) and InCloud (IC) lightning. This array, the Los Alamos Sferic Array (LASA), has approximately 15 sensors concentrated in the Great Plains and Florida, which detect electric field changes in a bandwidth from 200 Hz to 500 kHz (Smith et al., 2002). Recently, LANL has begun development of a new dual-band RF sensor array that includes the Very-High Frequency (VHF) band as well as the VLF. Whereas VLF lightning emissions can be used to deduce physical parameters such as lightning type and peak current, VHF emissions can be used to perform precise 3d mapping of individual radiation sources, which can number in the thousands for a typical CG flash. These new dual-band sensors will be used to monitor lightning activity in hurricanes in an effort to better predict intensification cycles. Although the new LANL dual-band array is not yet operational, we have begun initial work utilizing both VLF and VHF lightning data to monitor hurricane evolution. In this paper, we present the temporal evolution of Rita's landfall using VLF and VHF lightning data, and also WSR-88D radar. At landfall, Rita's northern eyewall experienced strong updrafts and significant lightning activity that appear to mark a transition between oceanic hurricane dynamics and continental thunderstorm dynamics. In section 2, we give a brief overview of Hurricane Rita, including its development as a hurricane and its lightning history. In the following section, we present WSR-88D data of Rita's landfall, including reflectivity images and temporal variation. In section 4, we present both VHF and VLF lightning data, overplotted on radar reflectivity images. Finally, we discuss our observations, including a comparison to previous studies and a brief conclusion.

Henderson, Bradley G [Los Alamos National Laboratory; Suszcynsky, David M [Los Alamos National Laboratory; Hamlin, Timothy E [Los Alamos National Laboratory; Jeffery, C A [Los Alamos National Laboratory; Wiens, Kyle C [TEXAS TECH U.; Orville, R E [TEXAS A& M

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "radar sample volume" 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

Comparison of Statistically Modeled Contaminated Soil Volume Estimates and Actual Excavation Volumes at the Maywood FUSRAP Site - 13555  

SciTech Connect (OSTI)

As part of the ongoing remediation process at the Maywood Formerly Utilized Sites Remedial Action Program (FUSRAP) properties, Argonne National Laboratory (Argonne) assisted the U.S. Army Corps of Engineers (USACE) New York District by providing contaminated soil volume estimates for the main site area, much of which is fully or partially remediated. As part of the volume estimation process, an initial conceptual site model (ICSM) was prepared for the entire site that captured existing information (with the exception of soil sampling results) pertinent to the possible location of surface and subsurface contamination above cleanup requirements. This ICSM was based on historical anecdotal information, aerial photographs, and the logs from several hundred soil cores that identified the depth of fill material and the depth to bedrock under the site. Specialized geostatistical software developed by Argonne was used to update the ICSM with historical sampling results and down-hole gamma survey information for hundreds of soil core locations. The updating process yielded both a best guess estimate of contamination volumes and a conservative upper bound on the volume estimate that reflected the estimate's uncertainty. Comparison of model results to actual removed soil volumes was conducted on a parcel-by-parcel basis. Where sampling data density was adequate, the actual volume matched the model's average or best guess results. Where contamination was un-characterized and unknown to the model, the actual volume exceeded the model's conservative estimate. Factors affecting volume estimation were identified to assist in planning further excavations. (authors)

Moore, James [U.S. Army Corps of Engineers - New York District 26 Federal Plaza, New York, New York 10278 (United States)] [U.S. Army Corps of Engineers - New York District 26 Federal Plaza, New York, New York 10278 (United States); Hays, David [U.S. Army Corps of Engineers - Kansas City District 601 E. 12th Street, Kansas City, Missouri 64106 (United States)] [U.S. Army Corps of Engineers - Kansas City District 601 E. 12th Street, Kansas City, Missouri 64106 (United States); Quinn, John; Johnson, Robert; Durham, Lisa [Argonne National Laboratory, Environmental Science Division 9700 S. Cass Ave., Argonne, Illinois 60439 (United States)] [Argonne National Laboratory, Environmental Science Division 9700 S. Cass Ave., Argonne, Illinois 60439 (United States)

2013-07-01T23:59:59.000Z

282

Recent results of the investigation of a micro-fluidic sampling chip and sampling system for hot cell aqueous processing streams  

SciTech Connect (OSTI)

A Fuel Cycle Research and Development project has investigated an innovative sampling method that could evolve into the next generation sampling and analysis system for metallic elements present in aqueous processing streams. Initially sampling technologies were evaluated and micro-fluidic sampling chip technology was selected and tested. A conceptual design for a fully automated microcapillary-based system was completed and a robotic automated sampling system was fabricated. The mechanical and sampling operation of the completed sampling system was investigated. Different sampling volumes have been tested. It appears that the 10 ?l volume has produced data that had much smaller relative standard deviations than the 2 ?l volume. In addition, the production of a less expensive, mass produced sampling chip was investigated to avoid chip reuse thus increasing sampling reproducibility/accuracy. The micro-fluidic-based robotic sampling system's mechanical elements were tested to ensure analytical reproducibility and the optimum robotic handling of micro-fluidic sampling chips. (authors)

Tripp, J.; Smith, T.; Law, J. [Idaho National Laboratory: P.O. Box 1625, Idaho Falls, ID 83415 (United States)

2013-07-01T23:59:59.000Z

283

Doppler-radar wind-speed measurements in tornadoes: A comparison of real and simulated spectra  

SciTech Connect (OSTI)

Bluestein and Unruh have discussed the advantages of using a portable doppler radar to map the wind field in tornadoes. during the spring of 1991 a storm-intercept team from the University of Oklahoma (OU) collected data near five supercell tornadoes in Oklahoma and Kansas. Details about the 1-W, 3-cm, 5-deg half-power beamwidth, CW/FM-CW Doppler radar we used and the methods of data collection and analysis are found in Bluestein and Unruh and Bluestein et al. Using the portable radar, we approximately doubled in only one year the number of tornado spectra that had been collected over a period of almost 20 years by NSSL`s fixed-site Doppler radar. In this paper we will compare observed tornado wind spectra with simulated wind spectra (Zmic and Doviak 1975) in order to learn more about tornado structure.

Bluestein, H.B.; LaDue, J.G.; Stein, H.; Speheger, D. [Oklahoma Univ., Norman, OK (United States); Unruh, W.P. [Los Alamos National Lab., NM (United States)

1993-03-01T23:59:59.000Z

284

Doppler-radar wind-speed measurements in tornadoes: A comparison of real and simulated spectra  

SciTech Connect (OSTI)

Bluestein and Unruh have discussed the advantages of using a portable doppler radar to map the wind field in tornadoes. during the spring of 1991 a storm-intercept team from the University of Oklahoma (OU) collected data near five supercell tornadoes in Oklahoma and Kansas. Details about the 1-W, 3-cm, 5-deg half-power beamwidth, CW/FM-CW Doppler radar we used and the methods of data collection and analysis are found in Bluestein and Unruh and Bluestein et al. Using the portable radar, we approximately doubled in only one year the number of tornado spectra that had been collected over a period of almost 20 years by NSSL's fixed-site Doppler radar. In this paper we will compare observed tornado wind spectra with simulated wind spectra (Zmic and Doviak 1975) in order to learn more about tornado structure.

Bluestein, H.B.; LaDue, J.G.; Stein, H.; Speheger, D. (Oklahoma Univ., Norman, OK (United States)); Unruh, W.P. (Los Alamos National Lab., NM (United States))

1993-01-01T23:59:59.000Z

285

A model for forming airborne synthetic aperture radar images of underground targets  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) from an airborne platform has been proposed for imaging targets beneath the earth`s surface. The propagation of the radar`s energy within the ground, however, is much different than in the earth`s atmosphere. The result is signal refraction, echo delay, propagation losses, dispersion, and volumetric scattering. These all combine to make SAR image formation from an airborne platform much more challenging than a surface imaging counterpart. This report treats the ground as a lossy dispersive half-space, and presents a model for the radar echo based on measurable parameters. The model is then used to explore various imaging schemes, and image properties. Dynamic range is discussed, as is the impact of loss on dynamic range. Modified window functions are proposed to mitigate effects of sidelobes of shallow targets overwhelming deeper targets.

Doerry, A.W.

1994-01-01T23:59:59.000Z

286

Ground penetrating radar characterization of wood piles and the water table in Back Bay, Boston  

E-Print Network [OSTI]

Ground penetrating radar (GPR) surveys are performed to determine the depth to the water table and the tops of wood piles beneath a residential structure at 122 Beacon Street in Back Bay, Boston. The area of Boston known ...

LeFrançois, Suzanne O'Neil, 1980-

2003-01-01T23:59:59.000Z

287

Millimeter-wave radar sensor for automotive intelligent cruise control (ICC)  

SciTech Connect (OSTI)

If automotive intelligent cruise-control (ICC) systems are to be successful in the marketplace, they must provide robust performance in a complex roadway environment. Inconveniences caused by reduced performance during inclement weather, interrupted performance due to dropped tracks, and annoying nuisance alarms will not be tolerated by the consumer, and would likely result in the rejection of this technology in the marketplace. An all-weather automotive millimeter-wave (MMW) radar sensor is described that uses a frequency-modulation coplanar-wave (FMCW) radar design capable of acquiring and tracking all obstacles in its field of view. Design tradeoffs are discussed and radar-sensor test results are presented along with the applicability of the radar to collision-warning systems.

Russell, M.E.; Crain, A.; Curran, A.; Campbell, R.A.; Drubin, C.A.; Miccioli, W.F. [Raytheon, Tewksbury, MA (United States)] [Raytheon, Tewksbury, MA (United States)

1997-12-01T23:59:59.000Z

288

A census of precipitation features in the tropics using TRMM: radar, ice scattering, and lightning observations  

E-Print Network [OSTI]

and two ocean regions during August, September and October 1998, this study used radar retrievals and 85 GHz Polarization Corrected Temperatures (PCTs, which passively measure relative concentrations of precipitation-sized ice particles within a cloud...

Nesbitt, Stephen William

1999-01-01T23:59:59.000Z

289

Weather Radar and Hydrology 1 Influence of rainfall spatial variability on hydrological modelling: a  

E-Print Network [OSTI]

Weather Radar and Hydrology 1 Influence of rainfall spatial variability on hydrological modelling variability as well as characteristics and hydrological behavior of catchments, we have proceeded simulator and a distributed hydrological model (with four production functions and a distributed transfer

Paris-Sud XI, Université de

290

Ground penetrating radar technique to locate coal mining related features: case studies in Texas  

E-Print Network [OSTI]

The goal of this research project is to identify the efficacy of the ground penetrating radar (GPR) technique in locating underground coal mine related subsidence features at Malakoff and Bastrop, Texas. The work at Malakoff has been done...

Save, Neelambari R

2006-04-12T23:59:59.000Z

291

Multiple-scattering in radar systems: A review Alessandro Battaglia a,b,, Simone Tanelli c  

E-Print Network [OSTI]

Review Multiple-scattering in radar systems: A review Alessandro Battaglia a,b,Ã, Simone Tanelli c. Tel.: +44 116 2709859. E-mail address: a.battaglia@le.ac.uk (A. Battaglia). Journal of Quantitative Spectroscopy & Radiative Transfer ] (

Hogan, Robin

292

Off-The-Grid X-band Weather Radar Network for the West  

E-Print Network [OSTI]

­ Industry ­ Government · UPRM, UMASS, OU and CSU #12;10,000 ft tornado wind snow 3.05km 04080120160200240 Radar Radar Specifications: · Furuno Marine Based · Frequency = 9.41 GHz · Peak Power = 4 kW / 25 k #12;Results #12;August 29, 2010 #12;Advantages · Low Cost ­ Almost 10 times cheaper than current · Low

Gilbes, Fernando

293

Assessing the capabilities of ground penetrating radar for applications in geologic and engineering subsurface studies  

E-Print Network [OSTI]

of different display parameters from GSSI's RADAN software package . . . 21 (a) Unfiltered radar profile over an underground storage tank. (b) Profile (a) has been filtered wdth a horizontal high pass boxcar filter, removing the long horizontal reflector... and processed in the laboratory using RADAN, interpretation software developed by GSSI. The radar profile (or radargram) seen on the computer screen is a composition of paraUel series of amplitude versus time. The darkness or color displayed is proportional...

Servos, Stacia Lynn

1998-01-01T23:59:59.000Z

294

Radar cross section of triangular trihedral reflector with extended bottom plate.  

SciTech Connect (OSTI)

Trihedral corner reflectors are the preferred canonical target for SAR performance evaluation for many radar development programs. The conventional trihedrals have problems with substantially reduced Radar Cross Section (RCS) at low grazing angles, unless they are tilted forward, but in which case other problems arise. Consequently there is a need for better low grazing angle performance for trihedrals. This is facilitated by extending the bottom plate. A relevant analysis of RCS for an infinite ground plate is presented. Practical aspects are also discussed.

Brock, Billy C.; Doerry, Armin Walter

2009-05-01T23:59:59.000Z

295

CLOUD CHARACTERISTICS FROM DUAL WAVELENGTH MILLIMETREWAVE RADAR Robin J. Hogan , Anthony J. Illingworth and Henri Sauvageot +  

E-Print Network [OSTI]

­ veloping radar algorithms for measuring LWC is the ubiq­ uitous presence of occasional drizzle drops, which is clearly measurable even for vertically­pointing radars. The differential attenuation due to atmospheric and mean­sea­level pressure it has a (two­way) value of 1.0 dBkm 1 if the air is saturated. Measurements

Reading, University of

296

IFP V4.0:a polar-reformatting image formation processor for synthetic aperture radar.  

SciTech Connect (OSTI)

IFP V4.0 is the fourth generation of an extraordinarily powerful and flexible image formation processor for spotlight mode synthetic aperture radar. It has been successfully utilized in processing phase histories from numerous radars and has been instrumental in the development of many new capabilities for spotlight mode SAR. This document provides a brief history of the development of IFP, a full exposition of the signal processing steps involved, and a short user's manual for the software implementing this latest iteration.

Eichel, Paul H.

2005-09-01T23:59:59.000Z

297

Thunderstorm lightning and radar characteristics: insights on electrification and severe weather forecasting  

E-Print Network [OSTI]

thunderstorm?s dynamics and electrification processes operate. The advent of the WSR- 88D nationwide (U. S.) radar system, the National Lightning Detection Network (NLDN), and 3-dimensional lightning mapping systems (here the Lightning Detection... that are related to storm intensity and can assist in predicting severe weather. 2. Data and methodology The radar data used in this study were from the Dallas-Fort Worth WSR-88D (KFWS), obtained from the National Climatic Data Center...

Steiger, Scott Michael

2007-04-25T23:59:59.000Z

298

Thickness estimation of subsurface layers in asphalt pavement using monstatic ground penetrating radar  

E-Print Network [OSTI]

for the degree of MASTER OF SCIENCE December 1991 Major Subject: Electrical Engineering THICKNESS ESTIMATION OF SUBSURFACE LAYERS IN ASPHALT PAVEMENT USING MONSTATIC GROUND PENETRATING RADAR A Thesis CHUN LOK LAU Approved as to style and content by... ACKNOWLEDGEMENTS. LIST OF FIGURES. . CHAPTER I INTRODUCTION. 1. 1 Importance of pavement profile data. 1. 2 Principle of Ground Penetrating Radar (GPR) . . . 1. 3 Subsurface layer thickness measurement method. . . . . . II GPR ANTENNA AND SYSTEM CALIBRATION...

Lau, Chun Lok

1991-01-01T23:59:59.000Z

299

Some effects of range upon AN/CPS-9 radar reflectivities in thunderstorms  

E-Print Network [OSTI]

SOMB BFFBCTS OF RANGE UPON AN/CPS-9 RADAR RBFLECTIVITIBS IN THUNDBRSTORMS A Thesis Tommy Eugene Sanford Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE January 1961 Major Subject: Meteorology SOME EFFECI'S OF RANGE UPON AN/CPS-9 RADAR REFLECTIVITIES IN THUNDERSTORMS A Thesis Tommy Eugene Sanford Approved as to style and content by: (Chairman of Committe ) 4~4 (Head...

Sanford, Tom E

1961-01-01T23:59:59.000Z

300

Laser radar VI; Proceedings of the Meeting, Los Angeles, CA, Jan. 23-25, 1991  

SciTech Connect (OSTI)

Topics presented include lidar wind shear detection for commercial aircraft, centroid tracking of range-Doppler images, an analytic approach to centroid performance analysis, simultaneous active/passive IR vehicle detection, and resolution limits for high-resolution imaging lidar. Also presented are laser velocimetry applications, the application of laser radar to autonomous spacecraft landing, 3D laser radar simulation for autonomous spacecraft landing, and ground based CW atmospheric Doppler lidar performamce modeling.

Becherer, R.J.

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "radar sample volume" 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

Cooking the volumes  

E-Print Network [OSTI]

Cooking possesses a system of units of measurement, that includes measures of volumes based on pre-metric units. This paper discusses the cooking measures and compares their features with those of the ancient Roman measures of capacity.

Sparavigna, Amelia Carolina

2012-01-01T23:59:59.000Z

302

Computer News, Volume 29  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 29. How to update your login shell from csh to tcsh. If you, like me, have had an account on the Math network of SUNs ...

303

Computer News, Volume 30  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 30. How to create an ASCII version of the Purdue Logo and other matters of e-mail etiquette. The Purdue logo... ... ah, yes ...

304

Computer News, Volume 26  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 26. How to trim an e-mail alias. The faculty e-mail alias has a lot more people on it than you might imagine. (To find out ...

305

Computer News, Volume 7  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 7. How to put figures in TeX. (I assume that you are using X windows on or from a math dept SUN.) To make a figure, I use ...

306

Computer News, Volume 31  

E-Print Network [OSTI]

MATH DEPT Computer News, Volume 31. How to create .pdf files from TeX. by Donu Arapura. Click on RELOAD now. This page is frequently updated and you ...

307

Imaging using volume holograms  

E-Print Network [OSTI]

Volume holograms can be thought of as self-aligned 3D stacks of diffractive elements that operate coherently on incident fields as they propagate through the structure. In this thesis, we propose, design and implement ...

Sinha, Arnab, 1978-

2004-01-01T23:59:59.000Z

308

DOE Regional Partnership Begins Core Sampling for Large-Volume  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Deliciouscritical_materials_workshop_presentations.pdf MoreProgram |DOEInfrastructureEnergyRecordsof

309

E-Print Network 3.0 - assessment monitoring system Sample Search...  

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

Training Summary: and Sampling Guide http:usda-ars.nmsu.edumonitassessmonitoring.php Limited version in Manual Volume II Yes... datasheets that allow field indicator...

310

TRU waste-sampling program  

SciTech Connect (OSTI)

As part of a TRU waste-sampling program, Los Alamos National Laboratory retrieved and examined 44 drums of /sup 238/Pu- and /sup 239/Pu-contaminated waste. The drums ranged in age from 8 months to 9 years. The majority of drums were tested for pressure, and gas samples withdrawn from the drums were analyzed by a mass spectrometer. Real-time radiography and visual examination were used to determine both void volumes and waste content. Drum walls were measured for deterioration, and selected drum contents were reassayed for comparison with original assays and WIPP criteria. Each drum tested at atmospheric pressure. Mass spectrometry revealed no problem with /sup 239/Pu-contaminated waste, but three 8-month-old drums of /sup 238/Pu-contaminated waste contained a potentially hazardous gas mixture. Void volumes fell within the 81 to 97% range. Measurements of drum walls showed no significant corrosion or deterioration. All reassayed contents were within WIPP waste acceptance criteria. Five of the drums opened and examined (15%) could not be certified as packaged. Three contained free liquids, one had corrosive materials, and one had too much unstabilized particulate. Eleven drums had the wrong (or not the most appropriate) waste code. In many cases, disposal volumes had been inefficiently used. 2 refs., 23 figs., 7 tabs.

Warren, J.L.; Zerwekh, A.

1985-08-01T23:59:59.000Z

311

Forecast Technical Document Volume Increment  

E-Print Network [OSTI]

Forecast Technical Document Volume Increment Forecasts A document describing how volume increment is handled in the 2011 Production Forecast. Tom Jenkins Robert Matthews Ewan Mackie Lesley Halsall #12;PF2011 ­ Volume increment forecasts Background A volume increment forecast is a fundamental output of the forecast

312

Airborne UHF Radar for Fine Resolution Mapping of Near Surface Accumulation Layers in Greenland and West Antarctica  

E-Print Network [OSTI]

............................................................................................................................. 1 1.1 MOTIVATION ............................................................................................................................................................ 1 1.2 DOCUMENT ORGANIZATION... .................................................................................................................................. 3 CHAPTER 2: BACKGROUND ................................................................................................................................ 3 2.1 PREVIOUS ACCUMULATION RADAR DEVELOPMENT...

Lewis, Cameron Scott

2010-11-01T23:59:59.000Z

313

Environmental report 1994. Volume No. 2  

SciTech Connect (OSTI)

This volume 2 of the Lawrence Livermore National Laboratory`s (LLNL`s) annual Environmental Report 1994 is a detailed data report that provides individual data points, where applicable, along with some summary data and more detailed accounts of sample collection and analytical methods. Six chapters have information on monitoring of air, surface water, groundwater, soil and sediment, vegetation and foodstuffs, and environmental radiation; two other chapters cover compliance sel-monitoring and quality assurance.

Rath, K.S. [ed.; Harrach, R.J.; Gallegos, G.M.; Failor, R.A.; Christofferson, E. [and others

1995-09-01T23:59:59.000Z

314

Lynx: A High-Resolution Synthetic Aperture Radar  

SciTech Connect (OSTI)

Lynx is a high resolution, synthetic aperture radar (SAR) that has been designed and built by Sandia National Laboratories in collaboration with General Atomics (GA). Although Lynx may be operated on a wide variety of manned and unmanned platforms, it is primarily intended to be fielded on unmanned aerial vehicles. In particular, it may be operated on the Predator, I-GNAT, or Prowler II platforms manufactured by GA Aeronautical Systems, Inc. The Lynx production weight is less than 120 lb. and has a slant range of 30 km (in 4 mm/hr rain). It has operator selectable resolution and is capable of 0.1 m resolution in spotlight mode and 0.3 m resolution in stripmap mode. In ground moving target indicator mode, the minimum detectable velocity is 6 knots with a minimum target cross-section of 10 dBsm. In coherent change detection mode, Lynx makes registered, complex image comparisons either of 0.1 m resolution (minimum) spotlight images or of 0.3 m resolution (minimum) strip images. The Lynx user interface features a view manager that allows it to pan and zoom like a video camera. Lynx was developed under corporate finding from GA and will be manufactured by GA for both military and commercial applications. The Lynx system architecture will be presented and some of its unique features will be described. Imagery at the finest resolutions in both spotlight and strip modes have been obtained and will also be presented.

Doerry, A.W.; Hensley, W.H.; Pace, F.; Stence, J.; Tsunoda, S.I.; Walker, B.C.; Woodring, M.

1999-03-08T23:59:59.000Z

315

Spatially Interpolated Nonlinear Anodization in Synthetic Aperture Radar Imagery  

SciTech Connect (OSTI)

Spatially Interpolated Nonlinear Anodization in Synthetic Aperture Original formulation of spatially variant anodization for complex synthetic aperture radar (SAR) imagery oversampled at twice the Nyquist rate (2.OX). Here we report a spatially interpolating, noninteger-oversampled SVA sidelobe. The pixel's apparent IPR location is assessed by comparing its value to the sum of its value plus weighted comparable for exact interpolation. However, exact interpolation implies an ideal sine interpolator3 and large components may not be necessary. Note that P is the summation of IPR diagonal values. The value of a sine IPR on the diagonals is a sine-squared; values much less than cardinal direction (m, n) values. This implies that cardinal direction interpolation requires higher precision than diagonal interpolation. Consequently, we employed a smaller set. The spatially interpolated SVA used an 8-point/4-point sine interpolator described above. Table 1 shows the Table 1 results show a two-times speed-up using the 1.3x oversampled and spatially interpolated SVA over the Figure 1d. Detected results of 1.3x oversampled sine interpolated spatially variant

Eichel, Paul H.; Jakowatz, Jr., Charles V.; Yocky, David A.

1999-06-29T23:59:59.000Z

316

Identifying and Characterizing the Volume and Quality of Tributaries and Springs  

E-Print Network [OSTI]

..................................................................................................................................... 4 Sampling ......................................................................................................................................... 5 Discussions... and to locate sampling points based on accessibility. The second phase was to acquire water and sediment samples, determine flow volume, and submit samples for laboratory analysis. In the case of dry streambeds that could potentially carry water during storm...

Belzer, Wayne; Hart, Charles

317

Well purge and sample apparatus and method  

DOE Patents [OSTI]

The present invention specifically permits purging and/or sampling of a well but only removing, at most, about 25% of the fluid volume compared to conventional methods and, at a minimum, removing none of the fluid volume from the well. The invention is an isolation assembly with a packer, pump and exhaust, that is inserted into the well. The isolation assembly is designed so that only a volume of fluid between the outside diameter of the isolation assembly and the inside diameter of the well over a fluid column height from the bottom of the well to the top of the active portion (lower annulus) is removed. The packer is positioned above the active portion thereby sealing the well and preventing any mixing or contamination of inlet fluid with fluid above the packer. Ports in the wall of the isolation assembly permit purging and sampling of the lower annulus along the height of the active portion. 8 figs.

Schalla, R.; Smith, R.M.; Hall, S.H.; Smart, J.E.; Gustafson, G.S.

1995-10-24T23:59:59.000Z

318

Well purge and sample apparatus and method  

DOE Patents [OSTI]

The present invention specifically permits purging and/or sampling of a well but only removing, at most, about 25% of the fluid volume compared to conventional methods and, at a minimum, removing none of the fluid volume from the well. The invention is an isolation assembly with a packer, pump and exhaust, that is inserted into the well. The isolation assembly is designed so that only a volume of fluid between the outside diameter of the isolation assembly and the inside diameter of the well over a fluid column height from the bottom of the well to the top of the active portion (lower annulus) is removed. The packer is positioned above the active portion thereby sealing the well and preventing any mixing or contamination of inlet fluid with fluid above the packer. Ports in the wall of the isolation assembly permit purging and sampling of the lower annulus along the height of the active portion.

Schalla, Ronald (Kennewick, WA); Smith, Ronald M. (Richland, WA); Hall, Stephen H. (Kennewick, WA); Smart, John E. (Richland, WA); Gustafson, Gregg S. (Redmond, WA)

1995-01-01T23:59:59.000Z

319

Prediction of buried mine-like target radar signatures using wideband electromagnetic modeling  

SciTech Connect (OSTI)

Current ground penetrating radars (GPR) have been tested for land mine detection, but they have generally been costly and have poor performance. Comprehensive modeling and experimentation must be done to predict the electromagnetic (EM) signatures of mines to access the effect of clutter on the EM signature of the mine, and to understand the merit and limitations of using radar for various mine detection scenarios. This modeling can provide a basis for advanced radar design and detection techniques leading to superior performance. Lawrence Livermore National Laboratory (LLNL) has developed a radar technology that when combined with comprehensive modeling and detection methodologies could be the basis of an advanced mine detection system. Micropower Impulse Radar (MIR) technology exhibits a combination of properties, including wideband operation, extremely low power consumption, extremely small size and low cost, array configurability, and noise encoded pulse generation. LLNL is in the process of developing an optimal processing algorithm to use with the MIR sensor. In this paper, we use classical numerical models to obtain the signature of mine-like targets and examine the effect of surface roughness on the reconstructed signals. These results are then qualitatively compared to experimental data.

Warrick, A.L.; Azevedo, S.G.; Mast, J.E.

1998-04-06T23:59:59.000Z

320

13A.1 ASSIMILATION OF SIMULATED NETWORK RADAR DATA OF VARIED STORM TYPES USING ENSRF FOR CONVECTIVE STORM ANALYSES AND FORECASTS  

E-Print Network [OSTI]

installation costs down, the CASA radars will be placed on cell phone towers or other existing infras- tructure with large data transmission capabilities. Unlike the existing pre-programmed radar network, the collabo

Xue, Ming

Note: This page contains sample records for the topic "radar sample volume" 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

THE USE OF GROUND-PENETRATING RADAR FOR ARCHAEOLOGY: DETERMINING SITE FORMATION PROCESSES AND SUBSURFACE FEATURES ON TUTUILA ISLAND, AMERICAN SAMOA  

E-Print Network [OSTI]

, ceremonial mound (i.e. star mound) construction details were easily seen in radar profiles. Ground penetrating radar has the potential to yield significant details about such mounds, with no physical impact to the site....

Welch, Daniel

2006-07-11T23:59:59.000Z

322

Viability Assessment Volume 4  

SciTech Connect (OSTI)

Volume 4 provides the DOE plan and cost estimate for the remaining work necessary to proceed from completing this VA to submitting an LA to NRC. This work includes preparing an EIS and evaluating the suitability of the site. Both items are necessary components of the documentation required to support a decision in 2001 by the Secretary of Energy on whether or not to recommend that the President approve the site for development as a repository. If the President recommends the site to Congress and the site designation becomes effective, then DOE will submit the LA to NRC in 2002 for authorization to construct the repository. The work described in Volume 4 constitutes the last step in the characterization of the Yucca Mountain site and the design and evaluation of the performance of a repository system in the geologic setting of this site. The plans in this volume for the next 4 years' work are based on the results of the previous 15 years' work, as reported in Volumes 1, 2, and 3 of this VA. Volume 1 summarizes what DOE has learned to date about the Yucca Mountain site. Volume 2 describes the current, reference repository design, several design options that might enhance the performance of the reference design, and several alternative designs that represent substantial departures from the reference design. Volume 2 also summarizes the results of tests of candidate materials for waste packages and for support of the tunnels into which waste would be emplaced. Volume 3 provides the results of the latest performance assessments undertaken to evaluate the performance of the design in the geologic setting of Yucca Mountain. The results described in Volumes 1, 2, and 3 provide the basis for identifying and prioritizing the work described in this volume. DOE believes that the planned work, together with the results of previous work, will be sufficient to support a site suitability evaluation for site recommendation and, if the site is recommended and designated, a defensible LA. Volume 4 is divided into seven sections. Section 2 presents a rationale and summary for the technical work to be done to develop the preclosure and postclosure safety cases that will support the compliance evaluations required for the evaluation of site suitability and for licensing. Section 2 also describes other necessary technical work, including that needed to support design decisions and development of the necessary design information. Section 3 presents a more detailed description of the technical work required to address the issues identified in Section 2. Section 3 also describes activities that will continue after submittal of the site recommendation and the LA. Examples include the drift scale heater test in the Exploratory Studies Facility (Section 3.1.4.3) and long-term waste package corrosion testing (Section 3.2.2.9). Section 4 discusses the statutory and regulatory framework for site recommendation and submittal of an LA, and describes the activities and documentation that must be completed to achieve these milestones, including the development of an EIS. Section 5 describes the numerous activities required to support program milestones, including support for completing the testing program, continuing tests as part of the performance confirmation program, and managing information and records to support regulatory and legal review. Sections 6 and 7 provide cost and schedule information for the activities planned.

DOE

1998-12-01T23:59:59.000Z

323

ARM: Millimeter Wave Cloud Radar (MMCR), replaces mmcrcal and mmcrmoments datastreams following C-40 processor upgrade of 2003.09.09  

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

Millimeter Wave Cloud Radar (MMCR), replaces mmcrcal and mmcrmoments datastreams following C-40 processor upgrade of 2003.09.09

Widener, Kevin; Bharadwaj, Nitin; Johnson, Karen

324

Two-dimensional Variational Analysis of Near-Surface Moisture from Simulated Radar Refractivity-Related Phase Change Observations  

E-Print Network [OSTI]

provide high-resolution information about the highly variable low-level moisture field. Simulated radar uncertainty and random radar measurement errors. When a separate pre-processing step is applied to unwrap-slant-path water vapor measurements are most effective at the mid to upper levels where slant paths intersect each

Xue, Ming

325

U.S. Government work not protected by U.S. copyright Autonomous FMCW Radar Survey of Antarctic Shear  

E-Print Network [OSTI]

U.S. Government work not protected by U.S. copyright Autonomous FMCW Radar Survey of Antarctic results demonstrate that autonomous survey using high frequency radar is feasible and safe approach accumulation and high wind, and therefore present no surface expressions. To ensure safe navigation across

Marshall, Hans-Peter

326

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 47, NO. 12, DECEMBER 1999 1807 Millimeter-Wave Radar Phenomenology of  

E-Print Network [OSTI]

-Wave Radar Phenomenology of Power Lines and a Polarimetric Detection Algorithm Kamal Sarabandi, Fellow, IEEE, and Moonsoo Park Abstract-- In this paper, the radar phenomenology of high- voltage power lines and cables are studied by repeating the polarimetric backscatter measurements. Based on this phenomenological study

Sarabandi, Kamal

327

500 IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, VOL. 3, NO. 4, OCTOBER 2006 ELF Radar System Proposed for Localized  

E-Print Network [OSTI]

500 IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, VOL. 3, NO. 4, OCTOBER 2006 ELF Radar System frequency (ELF), finite difference time domain (FDTD), ionospheric disturbances, radar, remote sensing. I to be of sufficiently low power to have negligible heating or any other effects upon the ionospheric anomaly.) Employing

Simpson, Jamesina J.

328

Publications Edited Volume  

E-Print Network [OSTI]

of Robots with Passive Environments: Application to Force Feedback Control Ed Colgate and Neville Hogan, J. Edward Colgate Industrial Robot, 26 (5), 1999, pp 335-341 Toward Robot-Assisted VascularPublications Edited Volume Advances in Robotics, Mechatronics, and Haptic Interfaces 1993 Edited

MacIver, Malcolm A.

329

Hamiltonian and Volume Operators  

E-Print Network [OSTI]

2+1 gravity coupled to a massless scalar field has an initial singularity when the spatial slices are compact. The quantized model is used here to investigate several issues of quantum gravity. The spectrum of the volume operator is studied at the initial singularity. The energy spectrum is obtained. Dynamics of the universe is also investigated.

M. Pierri

2002-01-04T23:59:59.000Z

330

Telescope Array Radar (TARA) Observatory for Ultra-High Energy Cosmic Rays  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

Construction was completed during summer 2013 on the Telescope Array RAdar (TARA) bi-static radar observatory for Ultra-High Energy Cosmic Rays (UHECR). TARA is co-located with the Telescope Array, the largest “conventional” cosmic ray detector in the Northern Hemisphere, in radio-quiet Western Utah. TARA employs an 8 MW Effective Radiated Power (ERP) VHF transmitter and smart receiver system based on a 250 MS/s data acquisition system in an effort to detect the scatter of sounding radiation by UHECR-induced atmospheric ionization. TARA seeks to demonstrate bi-static radar as a useful new remote sensing technique for UHECRs. In this report, we describe the design and performance of the TARA transmitter and receiver systems.

Abbasi, R. [Univ. of Utah, Salt Lake City, UT (United States); Takai, H. [Brookhaven National Laboratory (BNL), Upton, NY (United States); Allen, C. [Univ. of Kansas, Lawrence, KS (United States); Beard, L. [Purdue Univ., West Lafayette, IN (United States); Belz, J. [Univ. of Utah, Salt Lake City, UT (United States); Besson, D. [Univ. of Kansas, Lawrence, KS (United States). Moscow Engineering and Physics Inst. (Russian Federation); Byrne, M. [Univ. of Utah, Salt Lake City, UT (United States); Abou Bakr Othman, M. [Univ. of Utah, Salt Lake City, UT (United States); Farhang-Boroujeny, B. [Univ. of Utah, Salt Lake City, UT (United States); Gardner, A. [Univ. of Utah, Salt Lake City, UT (United States); Gillman, W.H. [Gillman and Associates, Salt Lake City, UT (United States); Hanlon, W. [Univ. of Utah, Salt Lake City, UT (United States); Hanson, J. [Univ. of Kansas, Lawrence, KS (United States); Jayanthmurthy, C. [Univ. of Utah, Salt Lake City, UT (United States); Kunwar, S. [Univ. of Kansas, Lawrence, KS (United States); Larson, S. L. [Utah State Univ., Logan, UT (United States); Myers, I. [Univ. of Utah, Salt Lake City, UT (United States); Prohira, S. [Univ. of Kansas, Lawrence, KS (United States); Ratzlaff, K. [Univ. of Kansas, Lawrence, KS (United States); Sokolsky, P. [Univ. of Utah, Salt Lake City, UT (United States); Thomson, G. B. [Univ. of Utah, Salt Lake City, UT (United States); Von Maluski, D. [Univ. of Utah, Salt Lake City, UT (United States)

2014-12-01T23:59:59.000Z

331

A Software Tool for Processing the Displacement Time Series Extracted from Raw Radar Data  

SciTech Connect (OSTI)

The application of high-resolution radar waveform and interferometric principles recently led to the development of a microwave interferometer, suitable to simultaneously measuring the (static or dynamic) deflection of several points on a large structure. From the technical standpoint, the sensor is a Stepped Frequency Continuous Wave (SF-CW), coherent radar, operating in the K{sub u} frequency band.In the paper, the main procedures adopted to extract the deflection time series from raw radar data and to assess the quality of data are addressed, and the MATLAB toolbox developed is described. Subsequently, other functions implemented in the software tool (e.g. evaluation of the spectral matrix of the deflection time-histories, identification of natural frequencies and operational mode shapes evaluation) are described and the application to data recorded on full-scale bridges is exemplified.

Coppi, Francesco; Paolo Ricci, Pier [IDS Ingegneria Dei Sistemi S.p.A., Pisa (Italy); Gentile, Carmelo [Politecnico di Milano, Dept. of Structural Engineering, Milan (Italy)

2010-05-28T23:59:59.000Z

332

Radar imagery interpretation to assess the hydrocarbon potential of four sites in the Philippines  

SciTech Connect (OSTI)

The Republic of the Philippines is intensely interested in the identification, development, and conservation of natural resources. In keeping with this, the Government of the Philippines has recently completed a nationwide sedimentary basin evaluation program to assess hydrocarbon potential and assist in future exploration activities. This program of collection and interpretation of the radar imagery was designed to augment and complement the existing data base. The primary objective of the project was to further the goals of international energy development by aiding the Republic of the Philippines in the assessment of potential petroleum and geothermal prospects within the areas imaged. Secondary goals were to assist the Republic of the Philippines in utilizing state-of-the-art radar remote sensing technology for resource exploration, and to train key Philippines scientists in the use of imaging radar data. 29 refs., 30 figs., 14 tabs.

Not Available

1988-11-17T23:59:59.000Z

333

High-resolution moisture fields retrieved for the first time from both operational and research radars illustrate the low-level moisture variability associated with boundary layer  

E-Print Network [OSTI]

radars illustrate the low-level moisture variability associated with boundary layer processes-Resolution, Low-Level Moisture Fields from Operational NexRad and Research Radars by Rita D. RobeRts, FRéDéRic Fab vapor measurements extracted from radar using an index of refraction (refractivity) technique developed

Reising, Steven C.

334

Impacts of Beam Broadening and Earth Curvature on Storm-Scale 3D Variational Data Assimilation of Radial Velocity with Two Doppler Radars  

E-Print Network [OSTI]

. They can be used to determine the physical location of each radar measurement and to properly map by simplifications vary with the distance between the analyzed storm and the radar. For single time level wind of Radial Velocity with Two Doppler Radars GUOQING GE Center for Analysis and Prediction of Storms

Gao, Jidong

335

EnKF assimilation of high-resolution, mobile Doppler radar data of the 4 May 20071 Greensburg, Kansas supercell into a numerical cloud model2  

E-Print Network [OSTI]

, and low-level vortex strength and20 longevity.21 22 #12;2 1. Introduction1 Radar is one of few atmospheric routinely collected9 across most of the contiguous United States. The two measured radar variables mostEnKF assimilation of high-resolution, mobile Doppler radar data of the 4 May 20071 Greensburg

Xue, Ming

336

1498 JOURNAL OF ,\\TMOSPHERIC AND OCEANIC TECHNOLOGY VULIIME 25 A Techniqne for the Automatic Detection of Insect Clutter in Cloud Radar Returns  

E-Print Network [OSTI]

Radiation Measurement (ARM) Program operales 35- GHz millimclcr·w:lvclenglh cloud radars (MMCRs) in several levels in scan- ning weather radar applications (e.g., Vaughn 1985; Achtemeier 199]; Wilson el al. 1994 Detection of Insect Clutter in Cloud Radar Returns EDWARD P. LUKE, PAVLOS KOLLlAS, AND KAREN L. JOHNSON Aml

337

IFT&E Industry Report Wind Turbine-Radar Interference Test Summary.  

SciTech Connect (OSTI)

Wind turbines have grown in size and capacity with today's average turbine having a power capacity of around 1.9 MW, reaching to heights of over 495 feet from ground to blade tip, and operating with speeds at the tip of the blade up to 200 knots. When these machines are installed within the line-of-sight of a radar system, they can cause significant clutter and interference, detrimentally impacting the primary surveillance radar (PSR) performance. The Massachusetts Institute of Technology's Lincoln Laboratory (MIT LL) and Sandia National Laboratories (SNL) were co-funded to conduct field tests and evaluations over two years in order to: I. Characterize the impact of wind turbines on existing Program-of-Record (POR) air surveillance radars; II. Assess near-term technologies proposed by industry that have the potential to mitigate the interference from wind turbines on radar systems; and III. Collect data and increase technical understanding of interference issues to advance development of long-term mitigation strategies. MIT LL and SNL managed the tests and evaluated resulting data from three flight campaigns to test eight mitigation technologies on terminal (short) and long-range (60 nmi and 250 nmi) radar systems. Combined across the three flight campaigns, more than 460 of hours of flight time were logged. This paper summarizes the Interagency Field Test & Evaluation (IFT&E) program and publicly- available results from the tests. It will also discuss the current wind turbine-radar interference evaluation process within the government and a proposed process to deploy mitigation technologies.

Karlson, Benjamin; LeBlanc, Bruce Philip; Minster, David G; Estill, Milford; Miller, Bryan Edward; Busse, Franz (MIT LL); Keck, Chris (MIT LL); Sullivan, Jonathan (MIT LL); Brigada, David (MIT LL); Parker, Lorri (MIT LL); Younger, Richard (MIT LL); Biddle, Jason (MIT LL)

2014-10-01T23:59:59.000Z

338

Applications of digital radar in the analysis of severe local storms  

E-Print Network [OSTI]

August 1973 Major Subject: Meteorology APPLICATIONS OF DIGITAL RADAR IN THE ANALYSIS OF SEVERE LOCAL STORMS A Thesis JOHN EVERETT VOGEL Approved as to style and content by: (Co-Chairman of Committee) / /. Lier &. i i . 3 I r1 ~ '-d (ri 'i ~ ~ i...(& V (Co-Chairman of Committee) k. )&7 I). *v 'e(C' & ~. (Head of Department) (Member) ( ember) August 1973 ABSTRACT Applications of Digital Radar in the Analysis of Severe Local Storms (August 1973) John E. Vogel, B. S. , Texas A&M University...

Vogel, John Everett

1973-01-01T23:59:59.000Z

339

Performance limits for exo-clutter Ground Moving Target Indicator (GMTI) radar.  

SciTech Connect (OSTI)

The performance of a Ground Moving Target Indicator (GMTI) radar system depends on a variety of factors, many which are interdependent in some manner. It is often difficult to 'get your arms around' the problem of ascertaining achievable performance limits, and yet those limits exist and are dictated by physics. This report identifies and explores those limits, and how they depend on hardware system parameters and environmental conditions. Ultimately, this leads to a characterization of parameters that offer optimum performance for the overall GMTI radar system. While the information herein is not new to the literature, its collection into a single report hopes to offer some value in reducing the 'seek time'.

Doerry, Armin Walter

2010-09-01T23:59:59.000Z

340

X-band Scanning ARM Precipitation Radar (X-SAPR) Instrument Handbook  

SciTech Connect (OSTI)

The X-band scanning ARM cloud radar (X-SAPR) is a full-hemispherical scanning polarimetric Doppler radar transmitting simultaneously in both H and V polarizations. With a 200 kW magnetron transmitter, this puts 100 kW of transmitted power for each polarization. The receiver for the X-SAPR is a Vaisala Sigmet RVP-900 operating in a coherent-on-receive mode. Three X-SAPRs are deployed around the Southern Great Plains (SGP) Central Facility in a triangular array. A fourth X-SAPR is deployed near Barrow, Alaska on top of the Barrow Arctic Research Center.

Widener, K; Bharadwaj, N

2012-10-29T23:59:59.000Z

Note: This page contains sample records for the topic "radar sample volume" 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

Radar-Derived Forecasts of Cloud-to-Ground Lightning Over Houston, Texas  

E-Print Network [OSTI]

,399 unique cells, and 1,028,510 to find the best lightning forecast criteria. Results show that using 30 dBZ at the -20 ?C isotherm on cells within 75 km of the radar that have been tracked for at least 2 consecutive scan produces the best forecasts... with a critical success index (CSI) of 0.71. The best VII predictor was 0.734 kg m-2 on cells within 75 km of the radar that have been tracked for at least 2 consecutive scans iv producing a CSI of 0.68. Results of this study further suggest...

Mosier, Richard Matthew

2011-02-22T23:59:59.000Z

342

Large volume high-pressure cell with supported moissanite anvils  

SciTech Connect (OSTI)

The recently developed moissanite anvil cell (MAC) has become a useful device for achieving both high-pressure and large sample volume in an anvil cell. We describe two improvements in the basic design of the MAC. First, the loading environment has been optimized by centering the load. Second, a variety of supported systems have been examined to provide anvil stability at high loads with large anvils. Sample volumes that are nearly three orders magnitude greater than allowed by conventional diamond anvil cells can be pressurized and characterized at {approx}50 GPa.

Xu, J.; Mao, H.-k.; Hemley, R.J.; Hines , E. (CIW/GL)

2010-11-16T23:59:59.000Z

343

EN-012 Ecology September 2003 Using Line Intersect Sampling for Coarse Woody Debris  

E-Print Network [OSTI]

EN-012 Ecology September 2003 Using Line Intersect Sampling for Coarse Woody Debris: Practitioners, coarse woody debris, CWD, piece length, forest ecology, sampling methods, survey design, field to adjust pile volume to wood volume (Little 1982; Hardy 1996). Extension Note Research Disciplines: Ecology

344

Topology-controlled volume rendering  

E-Print Network [OSTI]

type. Even when volume render- ing is applied to nonmedicalin graphics hardware. We render tubes between saddles and

Weber, Gunther H; Dillard, Scott E; Carr, Hamish; Pascucci, Valerio; Hamann, Bernd

2007-01-01T23:59:59.000Z

345

Statistical Ensembles with Volume Fluctuations  

E-Print Network [OSTI]

The volume fluctuations in statistical mechanics are discussed. First, the volume fluctuations in ensembles with a fixed external pressure, the so called pressure ensembles, are considered. Second, a generalization of the pressure ensembles is suggested. Namely, the statistical ensembles with the volume fluctuating according to externally given distributions are considered. Several examples and possible applications in statistical models of hadron production are discussed.

Mark I. Gorenstein

2008-06-17T23:59:59.000Z

346

A Comparison of Simulated Cloud Radar Output from the Multiscale Modeling Framework Global Climate Model with CloudSat Cloud Radar Observations  

SciTech Connect (OSTI)

Over the last few years a new type of global climate model (GCM) has emerged in which a cloud-resolving model is embedded into each grid cell of a GCM. This new approach is frequently called a multiscale modeling framework (MMF) or superparameterization. In this article we present a comparison of MMF output with radar observations from the NASA CloudSat mission, which uses a near-nadir-pointing millimeter-wavelength radar to probe the vertical structure of clouds and precipitation. We account for radar detection limits by simulating the 94 GHz radar reflectivity that CloudSat would observe from the high-resolution cloud-resolving model output produced by the MMF. Overall, the MMF does a good job of reproducing the broad pattern of tropical convergence zones, subtropical belts, and midlatitude storm tracks, as well as their changes in position with the annual solar cycle. Nonetheless, the comparison also reveals a number of model shortfalls including (1) excessive hydrometeor coverage at all altitudes over many convectively active regions, (2) a lack of low-level hydrometeors over all subtropical oceanic basins, (3) excessive low-level hydrometeor coverage (principally precipitating hydrometeors) in the midlatitude storm tracks of both hemispheres during the summer season (in each hemisphere), and (4) a thin band of low-level hydrometeors in the Southern Hemisphere of the central (and at times eastern and western) Pacific in the MMF, which is not observed by CloudSat. This band resembles a second much weaker ITCZ but is restricted to low levels.

Marchand, Roger T.; Haynes, J. M.; Mace, Gerald G.; Ackerman, Thomas P.; Stephens, Graeme L.

2009-01-13T23:59:59.000Z

347

No-migration variance petition. Appendix B, Attachments E--Q: Volume 4, Revision 1  

SciTech Connect (OSTI)

Volume IV contains the following attachments: TRU mixed waste characterization database; hazardous constituents of Rocky flats transuranic waste; summary of waste components in TRU waste sampling program at INEL; total volatile organic compounds (VOC) analyses at Rocky Flats Plant; total metals analyses from Rocky Flats Plant; results of toxicity characteristic leaching procedure (TCLP) analyses; results of extraction procedure (EP) toxicity data analyses; summary of headspace gas analysis in Rocky Flats Plant (RFP) -- sampling program FY 1988; waste drum gas generation--sampling program at Rocky Flats Plant during FY 1988; TRU waste sampling program -- volume one; TRU waste sampling program -- volume two; and summary of headspace gas analyses in TRU waste sampling program; summary of volatile organic compounds (V0C) -- analyses in TRU waste sampling program.

Not Available

1990-03-01T23:59:59.000Z

348

1996 Site environmental report. Volume II  

SciTech Connect (OSTI)

Ernest Orlando Lawrence Berkeley National Laboratory presents Volume II, data appendix as a reference document to supplement the 1996 Site Environmental Report. Volume II contains the raw environmental monitoring and sampling data used to generate many of the summary results included in the main report for both routine and nonroutine activities. This appendix includes a legend that cross-references the enclosed data tables with summary tables in the main report. The legend also provides a listing of more detailed descriptions for the station location codes used in the appendices` tables. Data presented in the tables are given in Systeme International (SI) units. The glossary found in the main report contains a listing of the SI units.

NONE

1997-09-01T23:59:59.000Z

349

Electric power annual 1997. Volume 1  

SciTech Connect (OSTI)

The Electric Power Annual presents a summary of electric power industry statistics at national, regional, and State levels. The objective of the publication is to provide industry decisionmakers, government policy-makers, analysts, and the general public with data that may be used in understanding US electricity markets. The Electric Power Annual is prepared by the Electric Power Division; Office of Coal, Nuclear, Electric and Alternate Fuels; Energy Information Administration (EIA); US Department of Energy. Volume 1 -- with a focus on US electric utilities -- contains final 1997 data on net generation and fossil fuel consumption, stocks, receipts, and cost; preliminary 1997 data on generating unit capability, and retail sales of electricity, associated revenue, and the average revenue per kilowatthour of electricity sold (based on a monthly sample: Form EIA-826, ``Monthly Electric Utility Sales and Revenue Report with State Distributions``). Additionally, information on net generation from renewable energy sources and on the associated generating capability is included in Volume 1 of the EPA.

NONE

1998-07-01T23:59:59.000Z

350

Procedures for sampling radium-contaminated soils  

SciTech Connect (OSTI)

Two procedures for sampling the surface layer (0 to 15 centimeters) of radium-contaminated soil are recommended for use in remedial action projects. Both procedures adhere to the philosophy that soil samples should have constant geometry and constant volume in order to ensure uniformity. In the first procedure, a ''cookie cutter'' fashioned from pipe or steel plate, is driven to the desired depth by means of a slide hammer, and the sample extracted as a core or plug. The second procedure requires use of a template to outline the sampling area, from which the sample is obtained using a trowel or spoon. Sampling to the desired depth must then be performed incrementally. Selection of one procedure over the other is governed primarily by soil conditions, the cookie cutter being effective in nongravelly soils, and the template procedure appropriate for use in both gravelly and nongravelly soils. In any event, a minimum sample volume of 1000 cubic centimeters is recommended. The step-by-step procedures are accompanied by a description of the minimum requirements for sample documentation. Transport of the soil samples from the field is then addressed in a discussion of the federal regulations for shipping radioactive materials. Interpretation of those regulations, particularly in light of their application to remedial action soil-sampling programs, is provided in the form of guidance and suggested procedures. Due to the complex nature of the regulations, however, there is no guarantee that our interpretations of them are complete or entirely accurate. Preparation of soil samples for radium-226 analysis by means of gamma-ray spectroscopy is described.

Fleischhauer, H.L.

1985-10-01T23:59:59.000Z

351

Viability Assessment Volume 2  

SciTech Connect (OSTI)

This volume describes the major design features of the Monitored Geologic Repository. This document is not intended to provide an exhaustive, detailed description of the repository design. Rather, this document summarizes the major systems and primary elements of the design that are radiologically significant, and references the specific technical documents and design analyses wherein the details can be found. Not all portions of the design are at the same level of completeness. Highest priority has been given to assigning resources to advance the design of the Monitored Geologic Repository features that are important to radiological safety and/or waste isolation and for which there is no NRC licensing precedent. Those features that are important to radiological safety and/or waste isolation, but for which there is an NRC precedent, receive second priority. Systems and features that have no impact on radiological safety or waste isolation receive the lowest priority. This prioritization process, referred to as binning, is discussed in more detail in Section 2.3. Not every subject discussed in this volume is given equal treatment with regard to the level of detail provided. For example, less detail is provided for the surface facility design than for the subsurface and waste package designs. This different level of detail is intentional. Greater detail is provided for those functions, structures, systems, and components that play key roles with regard to protecting radiological health and safety and that are not common to existing nuclear facilities already licensed by NRC. A number of radiological subjects are not addressed in the VA, (e.g., environmental qualification of equipment). Environmental qualification of equipment and other radiological safety considerations will be addressed in the LA. Non-radiological safety considerations such as silica dust control and other occupational safety considerations are considered equally important but are not addressed in th is volume of the VA (see Volume 1, Section 2.2.1.2, subsection on Health Related Mineral Issues).

DOE

1998-12-01T23:59:59.000Z

352

High Volume Test Automation 1 High Volume Test AutomationHigh Volume Test Automation  

E-Print Network [OSTI]

High Volume Test Automation 1 High Volume Test AutomationHigh Volume Test Automation Keynote Automation 2 AcknowledgementsAcknowledgements · Many of the ideas in this presentation were initially jointly developed with Doug Hoffman,as we developed a course on test automation architecture, and in the Los Altos

353

Meridian-scanning photometer, coherent HF radar, and magnetometer observations of the cusp: a case study  

E-Print Network [OSTI]

the transport of mass, energy, and momentum from the solar wind into the near-Earth environment, is facilitated with the CUTLASS Finland coherent HF radar, a meridian-scanning photometer located at Ny AÃ? lesund, Svalbard on the scale of minutes, and which are believed to be related to the dynamic nature of energy and momentum

Paris-Sud XI, Université de

354

Basics of Polar-Format algorithm for processing Synthetic Aperture Radar images.  

SciTech Connect (OSTI)

The purpose of this report is to provide a background to Synthetic Aperture Radar (SAR) image formation using the Polar Format (PFA) processing algorithm. This is meant to be an aid to those tasked to implement real-time image formation using the Polar Format processing algorithm.

Doerry, Armin Walter

2012-05-01T23:59:59.000Z

355

Ionospheric local model and climatology from long-term databases of multiple incoherent scatter radars  

E-Print Network [OSTI]

Ionospheric local model and climatology from long-term databases of multiple incoherent scatter and climatology from long-term databases of multiple incoherent scatter radars, Geophys. Res. Lett., 32, L20102 to ionospheric and ther- mospheric climatology. The altitude dependence, for in- stance, of various variations

356

Radar Measurements of Ice Sheet Thickness of Outlet Glaciers in Greenland D. Braaten+  

E-Print Network [OSTI]

Radar Measurements of Ice Sheet Thickness of Outlet Glaciers in Greenland D. Braaten+ and S of Kansas Lawrence, KS 66045 U.S.A. Abstract ­ We have conducted airborne measurements over the Greenland the mass balance of the Greenland ice sheet, the University of Kansas has been operating an airborne radio

Kansas, University of

357

A Theory-Based Hydrometeor Identification Algorithm for X-Band Polarimetric Radars  

E-Print Network [OSTI]

A Theory-Based Hydrometeor Identification Algorithm for X-Band Polarimetric Radars BRENDA DOLAN, and comparisons are made with similar S-band hydrometeor identification algorithms applied to data from the S for illustrating bulk hydrometeor types and qualitatively agrees with analysis from KOUN. A simple reflectivity

Rutledge, Steven

358

ALBOTA ET AL. Three-Dimensional Imaging Laser Radars with Geiger-Mode Avalanche Photodiode Arrays  

E-Print Network [OSTI]

· ALBOTA ET AL. Three-Dimensional Imaging Laser Radars with Geiger-Mode Avalanche Photodiode Arrays- lanche photodiodes (APDs) operating in Geiger mode, with integrated timing circuitry for each pixel [2-Mode Avalanche Photodiode Arrays Marius A. Albota, Brian F. Aull, Daniel G. Fouche, Richard M. Heinrichs, David G

359

Downburst-producing thunderstorms in southern Germany: Radar analysis and predictability  

E-Print Network [OSTI]

Downburst-producing thunderstorms in southern Germany: Radar analysis and predictability Nikolai der Atmosphäre, Oberpfaffenhofen, 82234 Wessling, Germany b European Severe Storms Laboratory (ESSL), Münchner Str. 20, 82234 Wessling, Germany a r t i c l e i n f o a b s t r a c t Article history: Received

360

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 1 Microphysical Characterization of Microwave Radar  

E-Print Network [OSTI]

.g., Meteosat sensors) are usually exploited for long-range trajectory tracking and for measuring low level measurements may be blocked by water and ice clouds at higher levels and their overall utility is reduced Radar Reflectivity Due to Volcanic Ash Clouds Frank Silvio Marzano, Senior Member, IEEE, Gianfranco

Rose, William I.

Note: This page contains sample records for the topic "radar sample volume" 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

Improving estimates of African woodland biomass by fusing radar data, models and ground observations  

E-Print Network [OSTI]

Improving estimates of African woodland biomass by fusing radar data, models and ground management of savannahs and woodlands requires accurate estimates of the woody biomass. For these reasons, developing new methods to accurately estimate woody biomass and its changes is high on the political

362

Ice iron/sodium film as cause for high noctilucent cloud radar reflectivity  

E-Print Network [OSTI]

Ice iron/sodium film as cause for high noctilucent cloud radar reflectivity P. M. Bellan1 Received] Noctilucent clouds, tiny cold electrically charged ice grains located at about 85 km altitude, exhibit by assuming the ice grains are coated by a thin metal film; substantial evidence exists indicating

Bellan, Paul M.

363

A Time Series Weather Radar Simulator Based on High-Resolution Atmospheric Models  

E-Print Network [OSTI]

to produce theoretical moment maps, which allow for the study of radar characteristics and limitations given of signal-processing techniques, which help identify and scrutinize factors that may have been overlooked corresponding to that spectral shape. Numerous statistical studies were made possible using this simulation

Xue, Ming

364

An Intercomparison of Radar-Based Liquid Cloud Microphysics Retrievals and Implication for Model Evaluation Studies  

E-Print Network [OSTI]

Research Facility of the US Department of Energy provides long-term continuous cloud and radiation datasets Forks, ND 58202, U.S.A. 4 University of Utah, Salt Lake City, UT 84112, U.S.A. Corresponding Author Dong of single-frequency radar approaches. It is therefore suggested that data users should use the retrievals

Dong, Xiquan

365

A Quality Control Concept for Radar Reflectivity, Polarimetric Parameters, and Doppler Velocity  

E-Print Network [OSTI]

, nowcasting of severe weather events, and assimilation into numerical weather prediction models). Ongoing research focuses intensively on the use of radar data for assimilation in numerical weather prediction and hydrological models to improve quantitative precipitation forecasts. As part of this goal

366

Weather Radar Monitoring using the Sun Iwan Holleman and Hans Beekhuis  

E-Print Network [OSTI]

Weather Radar Monitoring using the Sun Iwan Holleman and Hans Beekhuis Technical Report, KNMI TR and azimuthal averaging 13 2.5 Corrected solar power 15 3 Position of the sun 17 3.1 Celestial sphere and equatorial coordinates 17 3.2 Equatorial coordinates of the sun 18 3.3 Conversion to elevation and azimuth 20

Stoffelen, Ad

367

Through-the-wall Imaging Radar Students: Thang Bui and Joseph Rabig  

E-Print Network [OSTI]

radar (SAR) to image objects behind a wall, using a pair of horn antennas and a vector network analyser was used to calibrate out unknown cable and system delays · Objects are resolved at correct locations close to the SAR Focusing delay geometry Theory ­ Image Processing Electromagnetic distance between horn

Ghahramani, Zoubin

368

Synthetic Aperture Radar Imaging with Motion Estimation and , T. Callaghan1  

E-Print Network [OSTI]

principles a synthetic aperture radar (SAR) imaging and target motion estimation method that is combined of the data into properly calibrated small apertures, (b) motion or platform trajectory perturbation estimation process. X-band persistent surveillance SAR is a specific application that is covered by our

Borcea, Liliana

369

STUDY OF CLOUD LIFETIME EFFECTS USING THE SGP HETEROGENEOUS DISTRIBUTED RADAR NETWORK: PRELIMINARY CONSIDERATIONS  

E-Print Network [OSTI]

STUDY OF CLOUD LIFETIME EFFECTS USING THE SGP HETEROGENEOUS DISTRIBUTED RADAR NETWORK: PRELIMINARY-dimensional morphology and life cycle of clouds. Detailing key cloud processes as they transit from the formation stage to precipitation onset and cloud dissipation is critical towards establishing uncertainties in climate models

370

Submesoscale Coastal Ocean Flows Detected By Very High Frequency Radar and Autonomous Underwater Vehicles  

E-Print Network [OSTI]

Submesoscale Coastal Ocean Flows Detected By Very High Frequency Radar and Autonomous Underwater, autonomous underwater vehicles (AUV), equipped with upward and downward- looking 1.2 MHz Acoustic Doppler and seven snapshots were subsequently time-averaged to form a mean profile from each experiment. In the down-wind

Shay, Lynn K. "Nick"

371

1. Introduction The use of radar rainfall data for hydrological model-  

E-Print Network [OSTI]

feed an interceptor sewer (up to 2.35 m box sec- tion) that conveys flows to a wastewater treatment for the supply of potable water and the treatment of wastewater in the north- west of England. The primary radar rainfall data was as an input to rainfall­runoff models of rural river systems. Building

Fox, Neil I.

372

An annual cycle of Arctic cloud characteristics observed by radar and lidar at SHEBA  

E-Print Network [OSTI]

distribution of cloud boundary heights, and occurrence of liquid phase in clouds are determined from radar-observed clouds containing liquid was 73% for the year. The least amount of liquid water phase was observed during-detected clouds. Liquid was distributed in a combination of all-liquid and mixed phase clouds, and was detected

Shupe, Matthew

373

HF radar in French Mediterranean Sea: an element of MOOSE Mediterranean Ocean Observing System on Environment  

E-Print Network [OSTI]

Sea in the context of climate change and anthropogenic pressure and to supply and maintain longHF radar in French Mediterranean Sea: an element of MOOSE Mediterranean Ocean Observing System , Pascal Guterman2 , Karim Bernardet2 1 Mediterranean Institute of Oceanography (MIO, UM 110, USTV

Boyer, Edmond

374

Quality Control and Verification of Weather Radar Wind Profiles IWAN HOLLEMAN  

E-Print Network [OSTI]

- tions of the vertical velocity, which is a sum of the vertical wind velocity and the hydrometeor fall. 1986). Profiles of wind speed and direction, hydrometeor fall speed, and divergence have been obtainedQuality Control and Verification of Weather Radar Wind Profiles IWAN HOLLEMAN Royal Netherlands

Stoffelen, Ad

375

Simultaneous Retreival of Surface Wind Speed and Rain Rate using Radar and Radiometer Measurements  

E-Print Network [OSTI]

to simultaneously retrieve the vertical profile of precipitation and the near-surface wind speed. ResultsSimultaneous Retreival of Surface Wind Speed and Rain Rate using Radar and Radiometer Measurements simultaneously estimates the over ocean near-surface wind speed and rain rate profile using data from a 10.7 GHz

Ruf, Christopher

376

A study of radar reflectivities from hurricane Debra, 24-25 July 1959  

E-Print Network [OSTI]

, Iouis J. , Radar Meteorolo , The University of' Chicago Press, icago, 5. Beoker, G. E. and S. H. Autler, "Water Vapour Absorption of' Electromagnetic Radiation in the Centimetre Wave- length Range, " The Ph sical Review, 70(5, 6):300-307, September...

Durham, Kneeland Secor

1960-01-01T23:59:59.000Z

377

Improvement of radar ice-thickness measurements of Greenland outlet glaciers using SAR processing  

E-Print Network [OSTI]

Extensive aircraft-based radar ice-thickness measurements over the interior and outlet-glacier regions of the Greenland ice sheet have been obtained by the University of Kansas since 1993, with the latest airborne surveys conducted in May 2001...

Braaten, David A.; Gogineni, S. Prasad; Tammana, Dilip; Namburi, Saikiran; Paden, John; Gurumoorthy, Krishna K.

2002-01-01T23:59:59.000Z

378

ESTIMATING BEDROCK AND SURFACE LAYER BOUNDARIES AND CONFIDENCE INTERVALS IN ICE SHEET RADAR IMAGERY USING MCMC  

E-Print Network [OSTI]

ESTIMATING BEDROCK AND SURFACE LAYER BOUNDARIES AND CONFIDENCE INTERVALS IN ICE SHEET RADAR IMAGERY and Computing Indiana University Bloomington, Indiana USA ABSTRACT Climate models that predict polar ice sheet behavior require accurate measurements of the bedrock-ice and ice-air bound- aries in ground

Menczer, Filippo

379

Probabilistic Conic Mixture Model and its Applications to Mining Spatial Ground Penetrating Radar Data  

E-Print Network [OSTI]

to image data is a basic task in pattern recognition and spatial data mining and also is an important a reliable report after the inspection. The patterns appearing in the B-scans [5] of GPR data have shapesProbabilistic Conic Mixture Model and its Applications to Mining Spatial Ground Penetrating Radar

Leeds, University of

380

Range dependent errors in the convective and stratiform partitioning of a radar precipitation estimation algorithm  

E-Print Network [OSTI]

BZ was classified differently by the two radar data sets at the 1.5 km and 3.0 km analysis levels respectively. The percentage of total rainfall from all precipitation classified differently was 26% for the 1.5 km analysis level, and 28% for the 3.0 km level....

Wood, David Richard

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "radar sample volume" 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

Method and apparatus for probing relative volume fractions  

DOE Patents [OSTI]

A relative volume fraction probe particularly for use in a multiphase fluid system includes two parallel conductive paths defining therebetween a sample zone within the system. A generating unit generates time varying electrical signals which are inserted into one of the two parallel conductive paths. A time domain reflectometer receives the time varying electrical signals returned by the second of the two parallel conductive paths and, responsive thereto, outputs a curve of impedance versus distance. An analysis unit then calculates the area under the curve, subtracts the calculated area from an area produced when the sample zone consists entirely of material of a first fluid phase, and divides this calculated difference by the difference between an area produced when the sample zone consists entirely of material of the first fluid phase and an area produced when the sample zone consists entirely of material of a second fluid phase. The result is the volume fraction. 9 figs.

Jandrasits, W.G.; Kikta, T.J.

1998-03-17T23:59:59.000Z

382

Effect of confining pressure on pore volume in tight sandstones  

SciTech Connect (OSTI)

The effect of confining pressure on the pore volume of some tight sandstones from the Uinta Basin, Utah, was investigated. A new method based on the pressure-volume relationships of a gas was developed and used to measure pore volume reduction. The results were compared with the results obtained using the more common method that involves the measurement of liquid expelled from a saturated core and were found to be in good agreement. Pore volume compressibility of the samples studies is in the range of values reported by other investigators and ranges from 2.0 x 10/sup -6/ to 1.3 x 10/sup -5/ pv/pv/psi at a confining pressure of 5,000 psi.

Sampath, K.

1982-05-01T23:59:59.000Z

383

Ground penetrating radar surveys over an alluvial DNAPL site, Paducah Gaseous Diffusion Plant, Kentucky  

SciTech Connect (OSTI)

Ground penetrating radar (GPR) surveys were used to map shallow sands and gravels which are DNAPL migration pathways at the Paducah Gaseous Diffusion Plant in western Kentucky. The sands and gravels occur as paleochannel deposits, at depths of 17-25 ft, embedded in Pleistocene lacustrine clays. More than 30 GPR profiles were completed over the Drop Test Area (DTA) to map the top and base of the paleochannel deposits, and to assess their lateral continuity. A bistatic radar system was used with antenna frequencies of 25 and 50 MHz. An average velocity of 0.25 ft/ns for silty and clayey materials above the paleochannel deposits was established from radar walkaway tests, profiles over culverts of known depth, and comparison of radar sections with borings. In the south portion of the DTA, strong reflections corresponded to the water table at approximately 9-10 ft, the top of the paleochannel deposits at approximately 18 ft, and to gravel horizons within these deposits. The base of these deposits was not visible on the radar sections. Depth estimates for the top of the paleochannel deposits (from 50 records) were accurate to within 2 ft across the southern portion of the DTA. Continuity of these sands and gravels could not be assessed due to interference from air-wave reflections and lateral changes in signal penetration depth. However, the sands and gravels appear to extend across the entire southern portion of the DTA, at depths as shallow as 17 ft. Ringing, air-wave reflections and diffractions from powerlines, vehicles, well casings, and metal equipment severly degraded GPR profiles in the northern portion of the DTA; depths computed from reflection times (where visible) were accurate to within 4 ft in this area. The paleochannel deposits are deeper to the north and northeast where DNAPL has apparently pooled (DNAPL was not directly imaged by the GPR, however). Existing hydrogeological models of the DTA will be revised.

Carpenter, P.J. [Northern Illinois Univ., DeKalb, IL (United States). Dept. of Geology]|[Oak Ridge National Lab., TN (United States); Doll, W.E. [Oak Ridge National Lab., TN (United States); Phillips, B.E. [Paducah Gaseous Diffusion Plant, KY (United States)

1994-09-01T23:59:59.000Z

384

A dual polarized x-band pulse radar for ground based electromagnetic scattering experiment / by Allen William White  

E-Print Network [OSTI]

) 218 219 221 Table C-7 XMTR/RCVR (T/R) Enclosure Wire List (50 - pin D connector) ~pa e 223 LIST OF FIGURES ~Fi ure X-Band Radar Scatterometer ~pa e I-2 Basic Block Diagram of the X-Band Radar Scatterometer X-Band Radar Block Diagram...) Produced by the SPST PIN diode Switch Modulator: fo' = 10. 000 GHz 77 ~Fi ure IV-15 ~pa e Graph of the Output Power Deviation of the CW Gunn Oscillator (Model No. MA 86130) as a Function of Temperature ~ ~ ~ ~ ~ 79 IV-16 V-1 V-2 V-3 V-4 V-5 V...

White, Allen William

2012-06-07T23:59:59.000Z

385

Long-term Observations of the Convective Boundary Layer Using Insect Radar Returns at the SGP ARM Climate Research Facility  

SciTech Connect (OSTI)

A long-term study of the turbulent structure of the convective boundary layer (CBL) at the U.S. Department of Energy Atmospheric Radiation Measurement Program (ARM) Southern Great Plains (SGP) Climate Research Facility is presented. Doppler velocity measurements from insects occupying the lowest 2 km of the boundary layer during summer months are used to map the vertical velocity component in the CBL. The observations cover four summer periods (2004-08) and are classified into cloudy and clear boundary layer conditions. Profiles of vertical velocity variance, skewness, and mass flux are estimated to study the daytime evolution of the convective boundary layer during these conditions. A conditional sampling method is applied to the original Doppler velocity dataset to extract coherent vertical velocity structures and to examine plume dimension and contribution to the turbulent transport. Overall, the derived turbulent statistics are consistent with previous aircraft and lidar observations. The observations provide unique insight into the daytime evolution of the convective boundary layer and the role of increased cloudiness in the turbulent budget of the subcloud layer. Coherent structures (plumes-thermals) are found to be responsible for more than 80% of the total turbulent transport resolved by the cloud radar system. The extended dataset is suitable for evaluating boundary layer parameterizations and testing large-eddy simulations (LESs) for a variety of surface and cloud conditions.

Chandra, A S; Kollias, P; Giangrande, S E; Klein, S A

2009-08-20T23:59:59.000Z

386

RELATIONSHIPS BETWEEN ZOOPLANKTON DISPLACEMENT VOLUME, WET WEIGHT, DRY WEIGHT, AND CARBONI  

E-Print Network [OSTI]

of the regression line for log transformed values for carbon vs. dry weight and wet weight vs. displacement volumeRELATIONSHIPS BETWEEN ZOOPLANKTON DISPLACEMENT VOLUME, WET WEIGHT, DRY WEIGHT, AND CARBONI PETER H are identical. We have employed this type of analysis in determinations on samples from diverse sea areas

387

Lokaratna, Volume 4  

E-Print Network [OSTI]

Muthukumarswamy and his colleagues of NFSC, Chennai to support this volume to be published in their web site for a global readership. On behalf of Folklore Foundation, Odisha Bhubaneswar , I wish a Happy and prosperous new Year 2012... not create the tiger to prey upon man, but to hunt, to provide food for him […]. Magicians are, however, believed to have acquired the power to take away life at pleasure, without reference to the will of the gods, by dark and impious arts which are purely...

Mishra, Mahendra Kumar

2011-01-01T23:59:59.000Z

388

Lokaratna, Volume 3  

E-Print Network [OSTI]

Support Center, and Chennai for his support to get this volume published in NFSC web site for the wider readership. I am also thankful to Prof. Mark Turin of Cambridge University who has been kinds enough to link the web journal of Folklore... of Nature such as cloud, sky, Tam?la trees, night and Yamun? river have been illustrated. Moreover, all these aspects are blackish by nature and very similar to the dark-bodied Krishna. It may be undoubtedly stated that the poet has consciously used...

Mishra, Mahendra Kumar

389

FY 2005 Volume 5  

Broader source: Energy.gov (indexed) [DOE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomentheATLANTA, GA5 &of Energy memoCityTheDepartmentKey9Statistical6 Volume 5

390

FY 2005 Volume 6  

Broader source: Energy.gov (indexed) [DOE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomentheATLANTA, GA5 &of Energy memoCityTheDepartmentKey9Statistical6 Volume 57

391

FY 2005 Volume 7  

Broader source: Energy.gov (indexed) [DOE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomentheATLANTA, GA5 &of Energy memoCityTheDepartmentKey9Statistical6 Volume

392

E-Print Network 3.0 - automated electron backscatter Sample Search...  

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

ANTENNAS AND PROPAGATION, VOL. 47, NO. 12, DECEMBER 1999 1807 Millimeter-Wave Radar Phenomenology of Summary: using a millimeter-wave radar system. For this purpose, polarimetric...

393

Reducing Contingency through Sampling at the Luckey FUSRAP Site - 13186  

SciTech Connect (OSTI)

Typically, the greatest risk in developing accurate cost estimates for the remediation of hazardous, toxic, and radioactive waste sites is the uncertainty in the estimated volume of contaminated media requiring remediation. Efforts to address this risk in the remediation cost estimate can result in large cost contingencies that are often considered unacceptable when budgeting for site cleanups. Such was the case for the Luckey Formerly Utilized Sites Remedial Action Program (FUSRAP) site near Luckey, Ohio, which had significant uncertainty surrounding the estimated volume of site soils contaminated with radium, uranium, thorium, beryllium, and lead. Funding provided by the American Recovery and Reinvestment Act (ARRA) allowed the U.S. Army Corps of Engineers (USACE) to conduct additional environmental sampling and analysis at the Luckey Site between November 2009 and April 2010, with the objective to further delineate the horizontal and vertical extent of contaminated soils in order to reduce the uncertainty in the soil volume estimate. Investigative work included radiological, geophysical, and topographic field surveys, subsurface borings, and soil sampling. Results from the investigative sampling were used in conjunction with Argonne National Laboratory's Bayesian Approaches for Adaptive Spatial Sampling (BAASS) software to update the contaminated soil volume estimate for the site. This updated volume estimate was then used to update the project cost-to-complete estimate using the USACE Cost and Schedule Risk Analysis process, which develops cost contingencies based on project risks. An investment of $1.1 M of ARRA funds for additional investigative work resulted in a reduction of 135,000 in-situ cubic meters (177,000 in-situ cubic yards) in the estimated base volume estimate. This refinement of the estimated soil volume resulted in a $64.3 M reduction in the estimated project cost-to-complete, through a reduction in the uncertainty in the contaminated soil volume estimate and the associated contingency costs. (authors)

Frothingham, David; Barker, Michelle; Buechi, Steve [U.S. Army Corps of Engineers Buffalo District, 1776 Niagara St., Buffalo, NY 14207 (United States)] [U.S. Army Corps of Engineers Buffalo District, 1776 Niagara St., Buffalo, NY 14207 (United States); Durham, Lisa [Argonne National Laboratory, Environmental Science Division, 9700 S. Cass Ave., Argonne, IL 60439 (United States)] [Argonne National Laboratory, Environmental Science Division, 9700 S. Cass Ave., Argonne, IL 60439 (United States)

2013-07-01T23:59:59.000Z

394

Case studies in magnetics and ground penetrating radar, Shreveport Convention Center, Shreveport, LA and Yankee Boy Rock Glacier, Ouray, CO  

E-Print Network [OSTI]

The use of geophysical tools such as magnetics and ground penetrating radar are becoming more prevalent in site characterization studies and other geologic research. Two case studies which illustrate this are described here. The first case study...

Pierce, Carl J

2002-01-01T23:59:59.000Z

395

Relative Information in Phase of Radar Range Pro les Brian Rigling , Lee C. Potter and Randolph L. Moses  

E-Print Network [OSTI]

. Moses The Ohio State University Department of Electrical and Computer Engineering 2015 Neil Avenue is adopted for the radar backscatter, and information is quanti ed using the variance of parameters estimated

Moses, Randolph L.

396

30 ENGINEERING & SCIENCE WI NTE R 2012 Whether processing radar signals in Norway or assessing rock properties in Nigeria, Calte  

E-Print Network [OSTI]

30 ENGINEERING & SCIENCE WI NTE R 2012 Whether processing radar signals in Norway or assessing rock deeply into basic physics to solve problems. Oslo, Norway, José Navarro, PhD '94, Astronomy José Navarro

397

IMPROVED CAPABILITIES FOR SITING WIND FARMS AND MITIGATING IMPACTS ON RADAR OBSERVATIONS  

SciTech Connect (OSTI)

The development of efficient wind energy production involves challenges in technology and interoperability with other systems critical to the national mission. Wind turbines impact radar measurements as a result of their large reflectivity cross section as well as through the Doppler phase shift of their rotating blades. Wind farms can interfere with operational radar in multiple contexts, with degradation impacts on: weather detection such as tornado location, wind shear, and precipitation monitoring; tracking of airplanes where air traffic control software can lose the tracks of aircraft; and in identification of other low flying targets where a wind farm located close to a border might create a dead zone for detecting intruding objects. Objects in the path of an electromagnetic wave affect its propagation characteristics. This includes actual blockage of wave propagation by large individual objects and interference in wave continuity due to diffraction of the beam by individual or multiple objects. As an evolving industry, and the fastest growing segment of the energy sector, wind power is poised to make significant contributions in future energy generation requirements. The ability to develop comprehensive strategies for designing wind turbine locations that are mutually beneficial to both the wind industry that is dependent on production, and radar sites which the nation relies on, is critical to establishing reliable and secure wind energy. The mission needs of the Department of Homeland Security (DHS), Department of Defense (DOD), Federal Aviation Administration (FAA), and National Oceanographic and Atmospheric Administration (NOAA) dictate that the nation's radar systems remain uninhibited, to the maximum extent possible, by man-made obstructions; however, wind turbines can and do impact the surveillance footprint for monitoring airspace both for national defense as well as critical weather conditions which can impact life and property. As a result, a number of potential wind power locations have been contested on the basis of radar line of site. Radar line of site is dependent on local topography, and varies with atmospheric refractive index which is affected by weather and geographic conditions.

Chiswell, S.

2010-01-15T23:59:59.000Z

398

Tank waste source term inventory validation. Volume 1. Letter report  

SciTech Connect (OSTI)

The sample data for selection of 11 radionuclides and 24 chemical analytes were extracted from six separate sample data sets, were arranged in a tabular format and were plotted on scatter plots for all of the 149 single-shell tanks, the 24 double-shell tanks and the four aging waste tanks. The solid and liquid sample data was placed in separate tables and plots. The sample data and plots were compiled from the following data sets: characterization raw sample data, recent core samples, D. Braun data base, Wastren (Van Vleet) data base, TRAC and HTCE inventories. This document is Volume I of the Letter Report entitled Tank Waste Source Term Inventory Validation.

Brevick, C.H.; Gaddis, L.A.; Johnson, E.D.

1995-04-28T23:59:59.000Z

399

SAPHIRE 8 Volume 2 - Technical Reference  

SciTech Connect (OSTI)

The Systems Analysis Programs for Hands-on Integrated Reliability Evaluations (SAPHIRE) refers to a set of computer programs that were developed to create and analyze probabilistic risk assessment (PRAs). Herein information is provided on the principles used in the construction and operation of Version 8.0 of the SAPHIRE system. This report summarizes the fundamental mathematical concepts of sets and logic, fault trees, and probability. This volume then describes the algorithms used to construct a fault tree and to obtain the minimal cut sets. It gives the formulas used to obtain the probability of the top event from the minimal cut sets, and the formulas for probabilities that apply for various assumptions concerning reparability and mission time. It defines the measures of basic event importance that SAPHIRE can calculate. This volume gives an overview of uncertainty analysis using simple Monte Carlo sampling or Latin Hypercube sampling, and states the algorithms used by this program to generate random basic event probabilities from various distributions. Also covered are enhance capabilities such as seismic analysis, Workspace algorithms, cut set "recovery," end state manipulation, and use of "compound events."

C. L. Smith; S. T. Wood; W. J. Galyean; J. A. Schroeder; M. B. Sattison

2011-03-01T23:59:59.000Z

400

Electron-density comparisons between radar observations and 3-D ionospheric model calculations. Master's thesis  

SciTech Connect (OSTI)

A comparison of electron densities calculated from the Utah State University First-Principals Ionospheric Model with simultaneous observations taken at Sondrestrom, Millstone, and Arecibo incoherent-scatter radars was undertaken to better understanding the response of the ionosphere at these longitudinally similar yet latitudinally separated locations. The comparison included over 50 days distributed over 3 1/2 years roughly symmetrical about the last solar-minimum in 1986. The overall trend of the comparison was that to first-order the model reproduces electron densities responding to diurnal, seasonal, geomagnetic, and solar-cycle variations for all three radars. However, some model-observation discrepancies were found. These include, failure of the model to correctly produce an evening peak at Millstone, fall-spring equinox differences at Sondrestrom, tidal structure at Arecibo, and daytime NmF2 values at Arecibo.

Johnson, M.W.

1990-01-01T23:59:59.000Z

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


401

A low-cost, high-resolution, video-rate imaging optical radar  

SciTech Connect (OSTI)

Sandia National Laboratories has developed a unique type of portable low-cost range imaging optical radar (laser radar or LADAR). This innovative sensor is comprised of an active floodlight scene illuminator and an image intensified CCD camera receiver. It is a solid-state device (no moving parts) that offers significant size, performance, reliability, and simplicity advantages over other types of 3-D imaging sensors. This unique flash LADAR is based on low cost, commercially available hardware, and is well suited for many government and commercial uses. This paper presents an update of Sandia`s development of the Scannerless Range Imager technology and applications, and discusses the progress that has been made in evolving the sensor into a compact, low, cost, high-resolution, video rate Laser Dynamic Range Imager.

Sackos, J.T.; Nellums, R.O.; Lebien, S.M.; Diegert, C.F. [Sandia National Labs., Albuquerque, NM (United States); Grantham, J.W.; Monson, T. [Air Force Research Lab., Eglin AFB, FL (United States)

1998-04-01T23:59:59.000Z

402

Scanning ARM Cloud Radars Part II: Data Quality Control and Processing  

SciTech Connect (OSTI)

The Scanning ARM Cloud Radars (SACR’s) are the primary instruments for documenting the four-dimensional structure and evolution of clouds within a 20-30 km radius from the ARM fixed and mobile sites. Here, the post-processing of the calibrated SACR measurements is discussed. First, a feature mask algorithm that objectively determines the presence of significant radar returns is described. The feature mask algorithm is based on the statistical properties of radar receiver noise. It accounts for atmospheric emission and is applicable even for SACR profiles with few or no signal-free range gates. Using the nearest-in-time atmospheric sounding, the SACR radar reflectivities are corrected for gaseous attenuation (water vapor and oxygen) using a line-by-line absorption model. Despite having a high pulse repetition frequency, the SACR has a narrow Nyquist velocity limit and thus Doppler velocity folding is commonly observed. An unfolding algorithm that makes use of a first guess for the true Doppler velocity using horizontal wind measurements from the nearest sounding is described. The retrieval of the horizontal wind profile from the Hemispherical Sky – Range Height Indicator SACR scan observations and/or nearest sounding is described. The retrieved horizontal wind profile can be used to adaptively configure SACR scan strategies that depend on wind direction. Several remaining challenges are discussed, including the removal of insect and second-trip echoes. The described algorithms significantly enhance SACR data quality and constitute an important step towards the utilization of SACR measurements for cloud research.

Kollias, Pavlos; Jo, Ieng; Borque, Paloma; Tatarevic, Aleksandra; Lamer, Katia; Bharadwaj, Nitin; Widener, Kevin B.; Johnson, Karen; Clothiaux, Eugene E.

2014-03-01T23:59:59.000Z

403

ESPC IDIQ Contract Sample  

Broader source: Energy.gov [DOE]

Document displays a sample indefinite delivery, indefinite quantity (IDIQ) energy savings performance contract (ESPC).

404

Incremental online object learning in a vehicular radar-vision fusion framework  

SciTech Connect (OSTI)

In this paper, we propose an object learning system that incorporates sensory information from an automotive radar system and a video camera. The radar system provides a coarse attention for the focus of visual analysis on relatively small areas within the image plane. The attended visual areas are coded and learned by a 3-layer neural network utilizing what is called in-place learning, where every neuron is responsible for the learning of its own signal processing characteristics within its connected network environment, through inhibitory and excitatory connections with other neurons. The modeled bottom-up, lateral, and top-down connections in the network enable sensory sparse coding, unsupervised learning and supervised learning to occur concurrently. The presented work is applied to learn two types of encountered objects in multiple outdoor driving settings. Cross validation results show the overall recognition accuracy above 95% for the radar-attended window images. In comparison with the uncoded representation and purely unsupervised learning (without top-down connection), the proposed network improves the recognition rate by 15.93% and 6.35% respectively. The proposed system is also compared with other learning algorithms favorably. The result indicates that our learning system is the only one to fit all the challenging criteria for the development of an incremental and online object learning system.

Ji, Zhengping [Los Alamos National Laboratory; Weng, Juyang [Los Alamos National Laboratory; Luciw, Matthew [IEEE; Zeng, Shuqing [IEEE

2010-10-19T23:59:59.000Z

405

Imaging targets embedded in a lossy half space with Synthetic Aperture Radar  

SciTech Connect (OSTI)

This paper addresses theoretical aspects of forming images from an airborne Synthetic Aperture Radar (SAR) of targets buried below the earth`s surface. Soil is generally a lossy, dispersive medium, with wide ranging variability in these attributes depending on soil type, moisture content, and a host of other physical properties. Focussing a SAR subsurface image presents new dimensions of complexity relative to its surface-image counterpart, even when the soil`s properties are known. This paper treats the soil as a lossy, dispersive half space, and presents a practical model for the radar echo-delay time to point scatterers within it. This model is then used to illustrate effects of refraction, dispersion, and attenuation on a SAR`s phase histories, and the resulting image. Various data collection geometries and processing strategies are examined for both 2-Dimensional and 3-Dimensional SAR images. The conclusions from this work are that (1) focussing a SAR image must generally take into account both refraction and dispersion, (2) resolving targets at different depths in lossy soils requires perhaps unprecedented sidelobe attenuation, that for some soils may only be achievable with specialized window functions, (3) the impulse response of the soil itself places a practical limit on the usable bandwidth of the radar, and (4) dynamic ranges and sensitivities will need to be orders of magnitude greater than typical surface-imaging SARs, leading to significant impact on SAR parameters, for example compressing the usable range of pulse repetition frequencies (PRFs).

Doerry, A.W.; Brock, B.C.; Boverie, B.; Cress, D.

1994-05-01T23:59:59.000Z

406

Continuous-wave radar to detect defects within heat exchangers and steam generator tubes.  

SciTech Connect (OSTI)

A major cause of failures in heat exchangers and steam generators in nuclear power plants is degradation of the tubes within them. The tube failure is often caused by the development of cracks that begin on the outer surface of the tube and propagate both inwards and laterally. A new technique was researched for detection of defects using a continuous-wave radar method within metal tubing. The experimental program resulted in a completed product development schedule and the design of an experimental apparatus for studying handling of the probe and data acquisition. These tests were completed as far as the prototypical probe performance allowed. The prototype probe design did not have sufficient sensitivity to detect a defect signal using the defined radar technique and did not allow successful completion of all of the project milestones. The best results from the prototype probe could not detect a tube defect using the radar principle. Though a more precision probe may be possible, the cost of design and construction was beyond the scope of the project. This report describes the probe development and the status of the design at the termination of the project.

Nassersharif, Bahram (New Mexico State University, Las Cruces, NM); Caffey, Thurlow Washburn Howell; Jedlicka, Russell P. (New Mexico State University, Las Cruces, NM); Garcia, Gabe V. (New Mexico State University, Las Cruces, NM); Rochau, Gary Eugene

2003-01-01T23:59:59.000Z

407

A 77 GHz Transceiver for Automotive Radar System Using a120nm In AlAs/In GaAs Metamorphic HEMTs  

E-Print Network [OSTI]

A 77 GHz Transceiver for Automotive Radar System Using a120nm 0.4 0.35 In AlAs/In GaAs Metamorphic-mail:ykwon@snu.ac.kr) Abstract -- In this work, we demonstrate a compact 77GHz single-chip transceiver for an automotive radar at the transmitter and a 5dB conversion gain at the receiver. Index Terms -- Automotive radar, 77GHz, MHEMT, MMIC

Kwon, Youngwoo

408

CHARACTERIZATION Volume 1: Report  

E-Print Network [OSTI]

New Westminster, BC by C.A. McDevitt, Ph.D., P.Eng. , D.J. McLeay, Ph.D. , A. Brown, Ph.D.1 2 1, Fraser Wharves Ltd., MacMillan Bloedel (MB) Ltd. New Westminster, IFP Ltd. Hammond Cedar, Tree Island the Fraser River Estuary. The discharges were sampled for general parameters such as pH and suspended solids

409

ARM: X-Band Scanning ARM Cloud Radar (XSACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)  

SciTech Connect (OSTI)

X-Band Scanning ARM Cloud Radar (XSACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

Widener, Kevin; Nelson, Dan; Bharadwaj, Nitin; Lindenmaier, Iosif [Andrei; Johnson, Karen

2011-09-14T23:59:59.000Z

410

ARM: W-Band Scanning ARM Cloud Radar (W-SACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)  

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

W-Band Scanning ARM Cloud Radar (W-SACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

Widener, Kevin; Nelson, Dan; Bharadwaj, Nitin; Lindenmaier, Iosif [Andrei; Johnson, Karen

411

ARM: Ka-Band Scanning ARM Cloud Radar (KASACR) Hemispherical Sky RHI Scan (6 horizon-to-horizon scans at 30-degree azimuth intervals)  

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

Ka-Band Scanning ARM Cloud Radar (KASACR) Hemispherical Sky RHI Scan (6 horizon-to-horizon scans at 30-degree azimuth intervals)

Bharadwaj, Nitin; Widener, Kevin

412

ARM: X-Band Scanning ARM Cloud Radar (XSACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)  

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

X-Band Scanning ARM Cloud Radar (XSACR) Hemispherical Sky RHI Scans (6 horizon-to-horizon scans at 30-degree azimuth intervals)

Widener, Kevin; Nelson, Dan; Bharadwaj, Nitin; Lindenmaier, Iosif [Andrei; Johnson, Karen

413

Site Environmental Report for 2008, Volume II  

E-Print Network [OSTI]

Volume I: Collection Stack Air Ambient Air Rainwater Creekscollection activities Volume II section Stormwater Ambient Air; RainwaterRainwater Radiological Activity Analyte Gross alpha Location* ENV-44 Collection

Lackner, Regina

2009-01-01T23:59:59.000Z

414

Assessment of Solder Interconnect Integrity in Dismantled Electronic Components from N57 and B61 Tube-Type Radars  

SciTech Connect (OSTI)

Aging analyses were performed on solder joints from two radar units: (1) a laboratory, N57 tube-type radar unit and (2) a field-returned, B61-0, tube-type radar unit. The cumulative temperature environments experienced by the units during aging were calculated from the intermetallic compound layer thickness and the mean Pb-rich phase particle size metrics for solder joints in the units, assuming an aging time of 35 years for both radars. Baseline aging metrics were obtained from a laboratory test vehicle assembled at AS/FM and T; the aging kinetics of both metrics were calculated from isothermal aging experiments. The N57 radar unit interconnect board solder joints exhibited very little aging. The eyelet solder joints did show cracking that most likely occurred at the time of assembly. The eyelet, SA1126 connector solder joints, showed some delamination between the Cu pad and underlying laminate. The B61 field-returned radar solder joints showed a nominal degree of aging. Cracking of the eyelet solder joints was observed. The Pb-rich phase particle measurements indicated additional aging of the interconnects as a result of residual stresses. Cracking of the terminal pole connector, pin-to-pin solder joint was observed; but it was not believed to jeopardize the electrical functionality of the interconnect. Extending the stockpile lifetime of the B61 tube-type radar by an additional 20 years would not be impacted by the reliability of the solder joints with respect to further growth of the intermetallic compound layer. Additional coarsening of the Pb-rich phase will increase the joints' sensitivity to thermomechanical fatigue.

Rejent, J.A.; Vianco, P.T.; Woodrum, R.A.

1999-07-01T23:59:59.000Z

415

Rain sampling device  

DOE Patents [OSTI]

The present invention constitutes a rain sampling device adapted for independent operation at locations remote from the user which allows rainfall to be sampled in accordance with any schedule desired by the user. The rain sampling device includes a mechanism for directing wet precipitation into a chamber, a chamber for temporarily holding the precipitation during the process of collection, a valve mechanism for controllably releasing samples of the precipitation from the chamber, a means for distributing the samples released from the holding chamber into vessels adapted for permanently retaining these samples, and an electrical mechanism for regulating the operation of the device. 11 figures.

Nelson, D.A.; Tomich, S.D.; Glover, D.W.; Allen, E.V.; Hales, J.M.; Dana, M.T.

1991-05-14T23:59:59.000Z

416

Rain sampling device  

DOE Patents [OSTI]

The present invention constitutes a rain sampling device adapted for independent operation at locations remote from the user which allows rainfall to be sampled in accordance with any schedule desired by the user. The rain sampling device includes a mechanism for directing wet precipitation into a chamber, a chamber for temporarily holding the precipitation during the process of collection, a valve mechanism for controllably releasing samples of said precipitation from said chamber, a means for distributing the samples released from the holding chamber into vessels adapted for permanently retaining these samples, and an electrical mechanism for regulating the operation of the device.

Nelson, Danny A. (Richland, WA); Tomich, Stanley D. (Richland, WA); Glover, Donald W. (Prosser, WA); Allen, Errol V. (Benton City, WA); Hales, Jeremy M. (Kennewick, WA); Dana, Marshall T. (Richland, WA)

1991-01-01T23:59:59.000Z

417

July 7, 2009 Volume 3, Issue 13 Disease management: Newly-formed  

E-Print Network [OSTI]

harvest. Grand Junction West Olive #12;July 7, 2009 Volume 3, Issue 13 2 Cranberry fruitworm flight by either cranberry or cherry fruitworm was found at the four farms that we sampled, but damage from programs. Cranberry fruitworm flight has generally decreased over the past week at all sampled sites. Moths

Isaacs, Rufus

418

No-migration variance petition. Appendices C--J: Volume 5, Revision 1  

SciTech Connect (OSTI)

Volume V contains the appendices for: closure and post-closure plans; RCRA ground water monitoring waver; Waste Isolation Division Quality Program Manual; water quality sampling plan; WIPP Environmental Procedures Manual; sample handling and laboratory procedures; data analysis; and Annual Site Environmental Monitoring Report for the Waste Isolation Pilot Plant.

Not Available

1990-03-01T23:59:59.000Z

419

COMPUTER SCIENCE SAMPLE PROGRAM  

E-Print Network [OSTI]

COMPUTER SCIENCE SAMPLE PROGRAM (First Math Course MATH 198) This sample program suggests one way CS 181: Foundations of Computer Science II CS 180: Foundations of Computer Science I CS 191

Gering, Jon C.

420

REORIENTAO Ensino Mdio -Volume I  

E-Print Network [OSTI]

REORIENTAÇÃO CURRICULAR PORTUGUÊS Ensino Médio - Volume I Materiais Didáticos #12;#12;GOVERNO DO SUBSECRETARIA ADJUNTA DE PLANEJAMENTO PEDAGÓGICO Alba Rodrigues Cruz #12;#12;GOVERNO DO ESTADO DO RIO DE JANEIRO

Liu, I-Shih

Note: This page contains sample records for the topic "radar sample volume" 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

E-Print Network 3.0 - albumin solutions implications Sample Search...  

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

20 l for biomarker detection, using 2D - PAGE or LCMS analysis... albumin removal. The bulk resin format does not limit the albumin depletion to a specific sample volume... ....

422

E-Print Network 3.0 - altered gravity environment Sample Search...  

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

Powered by Explorit Topic List Advanced Search Sample search results for: altered gravity environment Page: << < 1 2 3 4 5 > >> 1 504 VOLUME 58J O U R N A L O F T H E A T M O...

423

E-Print Network 3.0 - als-linked mutant sod1 Sample Search Results  

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

mutant sod1 Search Powered by Explorit Topic List Advanced Search Sample search results for: als-linked mutant sod1 Page: << < 1 2 3 4 5 > >> 1 nature neuroscience volume 5 no 4...

424

E-Print Network 3.0 - atomic beams Sample Search Results  

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

Search Powered by Explorit Topic List Advanced Search Sample search results for: atomic beams Page: << < 1 2 3 4 5 > >> 1 Volume 9, number 1 OPTICSCOMMUNICATIONS September 1973 CW...

425

E-Print Network 3.0 - advanced thyroid cancer Sample Search Results  

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

thyroid cancer Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced thyroid cancer Page: << < 1 2 3 4 5 > >> 1 Volume 13, Number 11, 2003 Mary...

426

ASAP progress and expenditure report for the month of December 1--31, 1995. Joint UK/US radar program  

SciTech Connect (OSTI)

The RAR/SAR is a high-priority radar system for the joint US/UK Program. Based on previous experiment results and coordination with the UK, specifications needed for future radar experiments were identified as follows: dual polarimetric (HH and VV) with medium to high resolution in SAR mode. Secondary airborne installation requirements included; high power (circa 10kw) and SLIER capability to emulate Tupelev-134 type system; initially x-band but easily extendible to other frequencies. In FY96 we intended to enhance the radar system`s capabilities by providing a second polarization (VV), spotlight imaging mode, extended frequency of operation to include S- band, increase power, and interface to an existing infrared sensor. Short term objectives are: continue to evaluate and characterize the radar system; upgrade navigation and real-time processing capability to refine motion compensation; upgrade to dual polarimetry (add VV); and develop a ``spotlight`` mode capability. Accomplishments this reporting period: design specifications for the SAR system polarimetric upgrade are complete. The upgrade is ready to begin the procurement cycle when funds become available. System characterization is one of the highest priority tasks for the SAR. Although the radar is dedicated for our use, Hughes is waiting for contract funding before allowing us access to the hardware

Twogood, R.E.; Brase, J.M.; Chambers, D.H.; Mantrom, D.D.; Miller, M.G.; Newman, M.J.; Robey, H.F.; Vigars, M.L.

1996-01-19T23:59:59.000Z

427

Using fiberglass volumes for VPI of superconductive magnetic systems’ insulation  

SciTech Connect (OSTI)

The paper describes the method of manufacturing fiberglass molds for vacuum pressure impregnation (VPI) of high-voltage insulation of superconductive magnetic systems (SMS) with epoxidian hot-setting compounds. The basic advantages of using such vacuum volumes are improved quality of insulation impregnation in complex-shaped areas, and considerable cost-saving of preparing VPI of large-sized components due to dispensing with the stage of fabricating a metal impregnating volume. Such fiberglass vacuum molds were used for VPI of high-voltage insulation samples of an ITER reactor’s PF1 poloidal coil. Electric insulation of these samples has successfully undergone a wide range of high-voltage and mechanical tests at room and cryogenic temperatures. Some results of the tests are also given in this paper.

Andreev, I. S.; Bezrukov, A. A.; Pischugin, A. B. [Sredne-Nevskiy Shipyard (SNSZ), 10 Zavodskaya str., c. Pontonniy, Saint-Petersburg (Russian Federation); Bursikov, A. S.; Klimchenko, Y. A.; Marushin, E. L.; Mednikov, A. A.; Rodin, I. Y.; Stepanov, D. B. [The D.V. Efremov Scientific Research Institute of Electrophysical Apparatus (NIIEFA), 3 Doroga na Metallostroy, Metallostroy, Saint-Petersburg (Russian Federation)

2014-01-29T23:59:59.000Z

428

Well fluid isolation and sample apparatus and method  

DOE Patents [OSTI]

The present invention specifically permits purging and/or sampling of a well but only removing, at most, about 25% of the fluid volume compared to conventional methods and, at a minimum, removing none of the fluid volume from the well. The invention is an isolation assembly that is inserted into the well. The isolation assembly is designed so that only a volume of fluid between the outside diameter of the isolation assembly and the inside diameter of the well over a fluid column height from the bottom of the well to the top of the active portion (lower annulus) is removed. A seal may be positioned above the active portion thereby sealing the well and preventing any mixing or contamination of inlet fluid with fluid above the packer. Purged well fluid is stored in a riser above the packer. Ports in the wall of the isolation assembly permit purging and sampling of the lower annulus along the height of the active portion.

Schalla, Ronald (Kennewick, WA); Smith, Ronald M. (Richland, WA); Hall, Stephen H. (Kennewick, WA); Smart, John E. (Richland, WA)

1995-01-01T23:59:59.000Z

429

Forecast Technical Document Growing Stock Volume  

E-Print Network [OSTI]

Forecast Technical Document Growing Stock Volume Forecasts A document describing how growing stock (`standing') volume is handled in the 2011 Production Forecast. Tom Jenkins Robert Matthews Ewan Mackie Lesley Halsall #12;PF2011 ­ Growing stock volume forecasts Background A forecast of standing volume (or

430

Development of Radar Navigation and Radio Data Transmission for Microhole Coiled Tubing Bottom Hole Assemblies  

SciTech Connect (OSTI)

This Final Technical Report summarizes the research and development (R&D) work performed by Stolar Research Corporation (Stolar) under U.S. Department of Energy (DOE) Contract Number DE-FC26-04NT15477. This work involved the development of radar navigation and radio data transmission systems for integration with microhole coiled tubing bottom hole assemblies. Under this contract, Stolar designed, fabricated, and laboratory and field tested two advanced technologies of importance to the future growth of the U.S. oil and gas industry: (1) real-time measurement-while-drilling (MWD) for guidance and navigation of coiled tubing drilling in hydrocarbon reservoirs and (2) two-way inductive radio data transmission on coiled tubing for real-time, subsurface-to-surface data transmission. The operating specifications for these technologies are compatible with 3.5-inch boreholes drilled to a true vertical depth (TVD) of 5,000 feet, which is typical of coiled tubing drilling applications. These two technologies (i.e., the Stolar Data Transmission System and Drill String Radar) were developed into pre-commercial prototypes and tested successfully in simulated coiled tubing drilling conditions. Integration of these two technologies provides a real-time geosteering capability with extremely quick response times. Stolar is conducting additional work required to transition the Drill String Radar into a true commercial product. The results of this advanced development work should be an important step in the expanded commercialization of advanced coiled tubing microhole drilling equipment for use in U.S. hydrocarbon reservoirs.

Larry G. Stolarczyk; Gerald L. Stolarczyk; Larry Icerman; John Howard; Hooman Tehrani

2007-03-25T23:59:59.000Z

431

Improved mesh based photon sampling techniques for neutron activation analysis  

SciTech Connect (OSTI)

The design of fusion power systems requires analysis of neutron activation of large, complex volumes, and the resulting particles emitted from these volumes. Structured mesh-based discretization of these problems allows for improved modeling in these activation analysis problems. Finer discretization of these problems results in large computational costs, which drives the investigation of more efficient methods. Within an ad hoc subroutine of the Monte Carlo transport code MCNP, we implement sampling of voxels and photon energies for volumetric sources using the alias method. The alias method enables efficient sampling of a discrete probability distribution, and operates in 0(1) time, whereas the simpler direct discrete method requires 0(log(n)) time. By using the alias method, voxel sampling becomes a viable alternative to sampling space with the 0(1) approach of uniformly sampling the problem volume. Additionally, with voxel sampling it is straightforward to introduce biasing of volumetric sources, and we implement this biasing of voxels as an additional variance reduction technique that can be applied. We verify our implementation and compare the alias method, with and without biasing, to direct discrete sampling of voxels, and to uniform sampling. We study the behavior of source biasing in a second set of tests and find trends between improvements and source shape, material, and material density. Overall, however, the magnitude of improvements from source biasing appears to be limited. Future work will benefit from the implementation of efficient voxel sampling - particularly with conformal unstructured meshes where the uniform sampling approach cannot be applied. (authors)

Relson, E.; Wilson, P. P. H.; Biondo, E. D. [University of Wisconsin-Madison, 1500 Engineering Drive, Madison, WI 53706 (United States)

2013-07-01T23:59:59.000Z

432

International Linear Collider Technical Design Report (Volumes 1 through 4)  

SciTech Connect (OSTI)

The design report consists of four volumes: Volume 1, Executive Summary; Volume 2, Physics; Volume 3, Accelerator (Part I, R and D in the Technical Design Phase, and Part II, Baseline Design); and Volume 4, Detectors.

Harrison M.

2013-03-27T23:59:59.000Z

433

Geomorphological significance of Ontario Lacus on Titan: Integrated interpretation of Cassini VIMS, ISS and RADAR data and comparison with the Etosha Pan (Namibia)  

E-Print Network [OSTI]

Geomorphological significance of Ontario Lacus on Titan: Integrated interpretation of Cassini VIMS (ISS) in 2004 and 2005, Visual and Infrared Mapping Spectrometer (VIMS) in 2007 and 2009 and RADAR of Ontario Lacus, based on a joint analysis of ISS, VIMS and RADAR SAR datasets, along with the T49

Brest, Université de

434

Trench sampling report Salmon Site Lamar County, Mississippi  

SciTech Connect (OSTI)

This report describes trench excavation and sample-collection activities conducted by IT Corporation (IT) as part of the ongoing Remedial Investigation and Feasibility Study at the Salmon Site, Lamar County, Mississippi (DOE, 1992). During construction, operation, and closure of the site wastes of unknown composition were buried in pits on site. Surface-geophysical field investigations were conducted intermittently between November 1992 and October 1993 to identify potential waste-burial sites and buried metallic materials. The geophysical investigations included vertical magnetic gradient, electromagnetic conductivity, electromagnetic in-phase component, and ground-penetrating radar surveys. A number of anomalies identified by the magnetic gradiometer survey in the Reynolds Electrical & Engineering Co., Inc., (REECo) pits area indicated buried metallic objects. All of the anomalies were field checked to determine if any were caused by surface features or debris. After field checking, 17 anomalies were still unexplained; trenching was planned to attempt to identify their sources. Between December 8, 1993, and December 17, 1993, 15 trenches were excavated and soil samples were collected at the anomalies. Samples were collected, placed in 250- and 500-milliliter (m{ell}) amber glass containers, and shipped on ice to IT Analytical Services (ITAS) in St. Louis, Missouri, using standard IT chain-of-custody procedures. The samples were analyzed for various chemical and radiological parameters. Data validation has not been conducted on any of the samples. During excavation and sampling, soil samples were also collected by IT for the MSDEQ and the Mississippi Department of Radiological Health, in accordance with their instructions, and delivered into their custody.

Not Available

1994-07-01T23:59:59.000Z

435

Comparison of melting level altitudes from the NCEP reanalysis with TRMM precipitation radar data  

E-Print Network [OSTI]

two-thirds of the TRMM [TMI] swath. " 1. 3. Previous Studies Radar meteorologists use the term "melting layer" to describe the region (up to several hundred meters thick) just below the O' C isotherm where the bright band appears. Conversely, much... feature of Figure 3 is the large area of 5000 m enclosed in a dual-fingered shape centered on the equator in the central and western Pacific. An intrusion of lower heights centered on the equator from 125'E to 175'W divides the large area into two...

Harris, Gettys Nunn

1999-01-01T23:59:59.000Z

436

Mesoscale divergence, vorticity, and vertical motion compared to radar and rainfall patterns  

E-Print Network [OSTI]

analysis, 1800 CST, May 16, 1969 33. 700-mb analysis, 1800 CST, May 16, 1969 34. 500-mb analysis, 1800 CST, May 16, 1969 35. Radar contours, 2033 CST, May 16, 1969 36. Rainfall, 2015-2030 CST, May 16, 1969 37. Surface wind analysis, 2030 CST, May 16..., 1969 49 51 52 53 54 55 56 57 38. 850-mb streamline and equi. valent potential tempera- ture analyses, 2030 CST, May 16, 1969 58 39. 850-mb temperature and dew-point analyses, 2030 CST, May 16, 1969 59 40. 700-mb streamline and equivalent...

Withers, Donald Mead

1971-01-01T23:59:59.000Z

437

Correction of motion measurement errors beyond the range resolution of a synthetic aperture radar  

DOE Patents [OSTI]

Motion measurement errors that extend beyond the range resolution of a synthetic aperture radar (SAR) can be corrected by effectively decreasing the range resolution of the SAR in order to permit measurement of the error. Range profiles can be compared across the slow-time dimension of the input data in order to estimate the error. Once the error has been determined, appropriate frequency and phase correction can be applied to the uncompressed input data, after which range and azimuth compression can be performed to produce a desired SAR image.

Doerry, Armin W. (Albuquerque, NM); Heard, Freddie E. (Albuquerque, NM); Cordaro, J. Thomas (Albuquerque, NM)

2008-06-24T23:59:59.000Z

438

Meteorological significance of frontal thin-line angel echoes observed by CPS-9 radar  

E-Print Network [OSTI]

Effects of Vertical Wind-Shear on Convection Cells in the Atmosphere and Ocean 83 86 C. Radar Observations of Benard Cells and the Effects of Vertical Wind-Shear 89 D. Possible Effects of Wind-Shear Modified Convection Cells Exhibited by the Angel... of the Relationship between Wind-shear and Angel Echo Patterns 102 D. Summary of Conclusions REFERENCES APPENDIX 103 105 110 LIST OF FIGURES Figure 1. Surface Nap, 1500C, 10 December 1957 2. PPI Photographs~ 10 December 1957 3. Cold-frontal and Thin...

Miller, Donald Bradford

2012-06-07T23:59:59.000Z

439

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

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD) by Microtops AtmosphericApplication andAnthe Infrared LandSystem W-Band ARM Cloud Radar System

440

SciTech Connect: Radar cross section of triangular trihedral reflector with  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2) Sr (2) Ca (2)Frameworkextended bottom plate. Radar

Note: This page contains sample records for the topic "radar sample volume" 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

Sandia National Laboratories land use permit for operations at Oliktok Alaska Long Range Radar Station.  

SciTech Connect (OSTI)

The property subject to this Environmental Baseline Survey (EBS) is located at the Oliktok Long Range Radar Station (LRRS). The Oliktok LRRS is located at 70%C2%B0 30' W latitude, 149%C2%B0 53' W longitude. It is situated at Oliktok Point on the shore of the Beaufort Sea, east of the Colville River. The purpose of this EBS is to document the nature, magnitude, and extent of any environmental contamination of the property; identify potential environmental contamination liabilities associated with the property; develop sufficient information to assess the health and safety risks; and ensure adequate protection for human health and the environment related to a specific property.

Catechis, Christopher Spyros

2013-02-01T23:59:59.000Z

442

Cloud Properties from Doppler Radar Spectra - a Growing Suite of Information Extraction Algorithms  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New SubstationClean Communities of WesternVailCloisteredPresence offrom Doppler Radar

443

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

SciTech Connect (OSTI)

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

444

On the measurement of wind speeds in tornadoes with a portable CW/FM-CW Doppler radar  

SciTech Connect (OSTI)

Both the formation mechanism and structure of tornadoes are not yet well understood. The Doppler radar is probably the best remote-sensing instrument at present for determining the wind field in tornadoes. Although much has been learned about the non-supercell tornado from relatively close range using Doppler radars at fixed sites, close-range measurements in supercell tornadoes are relatively few. Doppler radar can increase significantly the number of high-resolution, sub-cloud base measurements of both the tornado vortex and its parent vortex in supercells, with simultaneous visual documentation. The design details and operation of the CW/FM-CW Doppler radar developed at the Los Alamos National Laboratory and used by storm-intercept teams at the Univ. of Oklahoma are described elsewhere. The radar transmits 1 W at 3 cm, and can be switched back and forth between CW and FM-CW modes. In the FM-CW mode the sweep repetition frequency is 15.575 kHz and the sweep width 1.9 MHz; the corresponding maximum unambiguous range and velocity, and range resolution are 5 km, {plus minus} 115 m s{sup {minus}1}, and 78 m respectively. The bistatic antennas, which have half-power beamwidths of 5{degree}, are easily pointed wit the aid of a boresighted VCR. FM-CW Data are recorded on the VCR, while voice documentation is recorded on the audio tape; video is recorded on another VCR. The radar and antennas are easily mounted on a tripod, and can be set up by three people in a minute or two. The purpose of this paper is to describe the signal processing techniques used to determine the Doppler spectrum in the FM-CW mode and a method of its interpretation in real time, and to present data gathered in a tornadic storm in 1990. 15 refs., 7 figs.

Bluestein, H.B. (Oklahoma Univ., Norman, OK (USA). School of Meteorology); Unruh, W.P. (Los Alamos National Lab., NM (USA))

1991-01-01T23:59:59.000Z

445

Sampled data lattice filters  

E-Print Network [OSTI]

SAMPLED DATA LATTICE FILTERS A Thesis by WILLIAM TERRY THRIFT III Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1979 Major Subfect...: Electrical Engineering SAMPLED DATA LATTICE FILTERS A Thesis by WILLIAM TERRY THRIFT III Approved as to style and content by: (Chair an of Committee) (Hea f Department) (Member) (Member) (Member) (Member) December 1979 ABSTRACT Sampled Data...

Thrift, William Terry

1980-01-01T23:59:59.000Z

446

Which BPS baryons minimize volume?  

SciTech Connect (OSTI)

A Bogomol'nyi-Prasad-Sommerfield (BPS) 3-cycle in a Sasaki-Einstein 5-manifold in general does not minimize volume in its homology class, as we illustrate with several examples of nonminimal volume BPS cycles on the 5-manifolds Y{sup p,q}. Instead they minimize the energy of a wrapping D-brane, extremizing a generalized calibration. We present this generalized calibration and demonstrate that it reproduces both the Born-Infeld and the Wess-Zumino parts of the D3-brane energy.

Evslin, Jarah; Kuperstein, Stanislav [Scuola Internazionale Superiore di Studi Avanzati (SISSA), Strada Costiera, Via Beirut n.2-4, 34013 Trieste (Italy); Theoretische Natuurkunde, Vrije Universiteit Brussel and The International Solvay Institutes, Pleinlaan 2, B-1050 Brussels (Belgium)

2009-02-15T23:59:59.000Z

447

A High Resolution, Light-Weight, Synthetic Aperture Radar for UAV Application  

SciTech Connect (OSTI)

(U) Sandia National Laboratories in collaboration with General Atomics (GA) has designed and built a high resolution, light-weight, Ku-band Synthetic Aperture Radar (SAR) known as "Lynx". Although Lynx can be operated on a wide variety of manned and unmanned platforms, its design is optimized for use on medium altitude Unmanned Aerial Vehicles (UAVS). In particular, it can be operated on the Predator, I-GNAT, and Prowler II platforms manufactured by GA. (U) The radar production weight is less than 120 lb and operates within a 3 GHz band from 15.2 GHz to 18.2 GHz with a peak output power of 320 W. Operating range is resolution and mode dependent but can exceed 45 km in adverse weather (4 mm/hr rain). Lynx has operator selectable resolution and is capable of 0.1 m resolution in spotlight mode and 0.3 m resolution in stripmap mode, over substantial depression angles (5 to 60 deg) and squint angles (broadside ±45 deg). Real-time Motion Compensation is implemented to allow high-quality image formation even during vehicle turns and other maneuvers.

Doerry, A.W.; Hensley, W.H.; Stence, J.; Tsunoda, S.I. Pace, F.; Walker, B,C.; Woodring, M.

1999-05-27T23:59:59.000Z

448

Comparison of optically measured and radar-derived horizontal neutral winds. Master's thesis  

SciTech Connect (OSTI)

Nighttime thermospheric winds for Sondrestrom, Greenland from 11 nights between 1983 and 1988, have been compared to learn about the O(+)-O collision cross section and the high-latitude atomic oxygen density. The horizontal winds in the magnetic meridian were derived indirectly from incoherent-scatter radar (ISR) measurements on ion velocities antiparallel to the magnetic field and directly from Fabry-Perot interferometer (FPI) measurements of Doppler shifts of the (6300-A) emission of atomic oxygen. In deriving the radar winds, the O(+)-O collision cross section, was scaled by a factor of f what was varied from 0.5 to 5.1. On the basis of several arguments the altitude of the 6300-A emission was assumed to be 230 km. The best agreement between the ISR and FPI winds was obtained when f was increased substantially, to between 1.7 and 3.4. If the average peak emission altitude were higher, these factors would be larger; if it were lower, they would be somewhat smaller. However, if the average altitude were substantially lower it would have been more difficult to have obtained agreement between the two techniques.

Christie, M.S.

1990-01-01T23:59:59.000Z

449

UWB radar technique for arc detection in coaxial cables and waveguides  

SciTech Connect (OSTI)

As spread spectrum technology has revolutionized the communications industry, Ultra Wide Band (UWB) technology is dramatically improving radar performances. These advanced signal processing techniques have been adapted to coaxial cables and waveguides to provide new features and enhanced performance on arc detection. UWB signals constituted by a sequence of chips (properly chosen to reduce side lobes and to improve detection accuracy) are transmitted along the transmission lines at a specified Pulse Repetition Frequency (PRF) and their echoes are received by means of directional couplers. The core of the receiver is an ultra high-speed correlator implemented in a Digital Signal Processor (DSP). When a target (arc) is detected, its position and its 'radar cross section' are calculated to be able to provide the arc position along the transmission line and to be able to classify the type of detected arc. The 'background scattering' is routinely extracted from the received signal at any pulse. This permits to be resilient to the background structure of transmission lines (bends, junctions, windows, etc.). Thanks to the localization feature, segmentation is also possible for creating sensed and non-sensed zones (for example, to be insensitive to antenna load variations)

Maggiora, R.; Salvador, S. [Politecnico di Torino, Department of Electronics, Torino (Italy)

2009-11-26T23:59:59.000Z

450

HERMES: a high-speed radar imaging system for inspection of bridge decks  

SciTech Connect (OSTI)

Corrosion of rebar in concrete bridges causes subsurface cracks and is a major cause of structural degradation that necessitates repair or replacement. Early detection of corrosion effects can limit the location and extent of necessary repairs, while providing long-term information about the infrastructure status. Most current detection methods, however, are destructive of the road surface and require closing or restricting traffic while the tests are performed. A ground-penetrating radar imaging system has been designed and developed that will perform the nondestructive evaluation of road-bed cracking at traffic speeds; i.e., without the need to restrict traffic flow. The first-generation system (called the HERMES bridge inspector), consists of an offset-linear array of 64 impulse radar transceivers and associated electronics housed in a trailer. Computers in the trailer and in the towing vehicle control the data acquisition, processing, and display. Cross-road resolution is three centimeters at up to 30 cm in depth, while down-road resolution depends on speed; 3 cm below 20 mph up to 8 cm at 50 mph. A two-meter- wide path is inspected on each pass over the roadway. This paper, describes the design of this system, shows preliminary results, and lays out its deployment schedule.

Azevedo, S.G.

1996-10-26T23:59:59.000Z

451

E-Print Network 3.0 - arterial blood sampling Sample Search Results  

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

the arterial blood volume, capillary blood volume, venous blood volume, cerebrospinal... control logic acts only on the flow of blood from the arterial compartment to the...

452

Rehabilitation Services Sample Occupations  

E-Print Network [OSTI]

/Industries Correction Agencies Drug Treatment Centers Addiction Counselor Advocacy Occupations Art Therapist BehavioralRehabilitation Services Sample Occupations Sample Work Settings Child & Day Care Centers Clinics................................ IIB 29-1000 E4 Careers in Counseling and Human Services .........IIB 21-1010 C7 Careers in Health Care

Ronquist, Fredrik

453

Sampling system and method  

DOE Patents [OSTI]

The present disclosure provides an apparatus and method for coupling conduit segments together. A first pump obtains a sample and transmits it through a first conduit to a reservoir accessible by a second pump. The second pump further conducts the sample from the reservoir through a second conduit.

Decker, David L.; Lyles, Brad F.; Purcell, Richard G.; Hershey, Ronald Lee

2013-04-16T23:59:59.000Z

454

Biological sample collector  

DOE Patents [OSTI]

A biological sample collector is adapted to a collect several biological samples in a plurality of filter wells. A biological sample collector may comprise a manifold plate for mounting a filter plate thereon, the filter plate having a plurality of filter wells therein; a hollow slider for engaging and positioning a tube that slides therethrough; and a slide case within which the hollow slider travels to allow the tube to be aligned with a selected filter well of the plurality of filter wells, wherein when the tube is aligned with the selected filter well, the tube is pushed through the hollow slider and into the selected filter well to sealingly engage the selected filter well and to allow the tube to deposit a biological sample onto a filter in the bottom of the selected filter well. The biological sample collector may be portable.

Murphy, Gloria A. (French Camp, CA)

2010-09-07T23:59:59.000Z

455

PATRAM '80. Proceedings. Volume 1  

SciTech Connect (OSTI)

Volume 1 contains papers from the following sessions: Plenary Session; Regulations, Licensing and Standards; LMFBR Systems Concepts; Risk/Safety Assessment I; Systems and Package Design; US Institutional Issues; Risk/Safety Assessment II; Leakage, Leak Rate and Seals; Poster Session A; Operations and Systems Experience I; Manufacturing Processes and Materials; and Quality Assurance and Maintenance. Individual papers were processed. (LM)

Huebner, H.W. (ed.)

1980-01-01T23:59:59.000Z

456

PATRAM '80. Proceedings. Volume 2  

SciTech Connect (OSTI)

Volume 2 contains papers from the following sessions: Safeguards-Related Problems; Neutronics and Criticality; Operations and Systems Experience II; Plutonium Systems; Intermediate Storage in Casks; Operations and Systems Planning; Institutional Issues; Structural and Thermal Evaluation I; Poster Session B; Extended Testing I; Structural and Thermal Evaluation II; Extended Testing II; and Emergency Preparedness and Response. Individual papers were processed. (LM)

Huebner, H.W. (ed.)

1980-01-01T23:59:59.000Z

457

Waste classification sampling plan  

SciTech Connect (OSTI)

The purpose of this sampling is to explain the method used to collect and analyze data necessary to verify and/or determine the radionuclide content of the B-Cell decontamination and decommissioning waste stream so that the correct waste classification for the waste stream can be made, and to collect samples for studies of decontamination methods that could be used to remove fixed contamination present on the waste. The scope of this plan is to establish the technical basis for collecting samples and compiling quantitative data on the radioactive constituents present in waste generated during deactivation activities in B-Cell. Sampling and radioisotopic analysis will be performed on the fixed layers of contamination present on structural material and internal surfaces of process piping and tanks. In addition, dose rate measurements on existing waste material will be performed to determine the fraction of dose rate attributable to both removable and fixed contamination. Samples will also be collected to support studies of decontamination methods that are effective in removing the fixed contamination present on the waste. Sampling performed under this plan will meet criteria established in BNF-2596, Data Quality Objectives for the B-Cell Waste Stream Classification Sampling, J. M. Barnett, May 1998.

Landsman, S.D.

1998-05-27T23:59:59.000Z

458

An Integrated Display and Analysis Methodology for Multivariable Radar Data BRENDA A. DOLAN AND STEVEN A. RUTLEDGE  

E-Print Network [OSTI]

products such as bulk hydrometeor identification and Doppler-derived winds to be viewed in real time-depth analysis using radar products, such as Doppler-derived wind vectors and hydrometeor identification, has identification, and rainfall rate. The software was successfully tested during the summers of 2004 and 2005

Rutledge, Steven

459

Using satellite radar backscatter to predict above-ground woody biomass: A consistent relationship across four different African  

E-Print Network [OSTI]

Using satellite radar backscatter to predict above-ground woody biomass: A consistent relationship. [1] Regional-scale above-ground biomass (AGB) estimates of tropical savannas and woodlands are highly and L-band backscatter for lower-biomass tropical woody vegetation. This relationship allows regional

460

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 47, NO. 6, JUNE 2009 1777 Cassini RADAR Sequence Planning and  

E-Print Network [OSTI]

in the Saturn system. Two SAR modes are used for high- and medium-resolution (300­1000 m) imaging of Titan, and calibration observations have provided an absolute calibration good to about 1.3 dB. Relative uncertainties, radiometer, synthetic aperture radar (SAR). I. INTRODUCTION THE Cassini­Huygens mission to Saturn

Goddard III, William A.

Note: This page contains sample records for the topic "radar sample volume" 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

Abstract--In the design of a spaceborne Synthetic Aperture RADAR mission with multiple modes and swaths, like the  

E-Print Network [OSTI]

the modes. Index Terms-- Synthetic Aperture Radar, STRIPMAP, TOPSAR. Conference topic: SAR/ISAR I Sophia-Antipolis cedex, France. mail: lorenzo.maggi@eurecom.fr calibration and the processing. In order of a spaceborne SAR. Let us refer to the geometry of Fig. 1.a, where we assumed for simplicity flat earth

Gesbert, David

462

Analysis of cloud layer structure in Shouxian, China using RS92 radiosonde aided by 95 GHz cloud radar  

E-Print Network [OSTI]

Analysis of cloud layer structure in Shouxian, China using RS92 radiosonde aided by 95 GHz cloud to analyze cloud vertical structure over this area by taking advantage of the first direct measurements of cloud vertical layers from the 95 GHz radar. Singlelayer, twolayer, and threelayer clouds account for 28

Li, Zhanqing

463

Mapping of Ice Sheet Deep Layers and Fast Outlet Glaciers with Multi-Channel-High-Sensitivity Radar  

E-Print Network [OSTI]

This dissertation discusses the waveform design, the development of SAR and clutter reduction algorithms for MCRDS radars that are developed at CReSIS to map the ice-sheet bed, deep internal layers and fast-flowing outlet glaciers. It is verified...

Li, Jilu

2009-12-29T23:59:59.000Z

464

Evaluation of Terrestrial Laser Scanning and Ground Penetrating Radar for Field-Based High-Throughput Phenotyping in Wheat Breeding  

E-Print Network [OSTI]

laser scanning (TLS) and ground penetrating radar (GPR) have the potential to fill this gap by non-invasively estimating biomass and mapping three-dimensional above- and below-ground vegetation. The research objective was to evaluate the use of TLS...

Thompson, Sean M

2014-08-05T23:59:59.000Z

465

The Long Wavelength Array (LWA): A Large HF/VHF Array for Solar Physics, Ionospheric Science, and Solar Radar  

E-Print Network [OSTI]

The Long Wavelength Array (LWA): A Large HF/VHF Array for Solar Physics, Ionospheric Science, and Solar Radar Namir E. Kassim Naval Research Laboratory, Washington, DC 20375 Stephen M. White AFRL will be a powerful tool for solar physics and space weather investigations, through its ability to characterize

Ellingson, Steven W.

466

Impacts of Mobile Radar and Telecommunications Sys-tems on Earth Remote Sensing in the 22-27 GHz Range  

E-Print Network [OSTI]

) vehicular radar systems operating in the 22-27 GHz fre- quency range a technical assessment on the potential (GRSS) Technical Committee on Frequency Alloca- tion in Remote Sensing (FARS) is charged with providing suggests that inter- ference to the passive services at power levels several or- ders of magnitude above

Ruf, Christopher

467

Discontinuous Non-Rigid Motion Analysis of Sea Ice using C-Band Synthetic Aperture Radar Satellite Imagery  

E-Print Network [OSTI]

Discontinuous Non-Rigid Motion Analysis of Sea Ice using C-Band Synthetic Aperture Radar Satellite@cis.udel.edu Cathleen Geiger Snow and Ice Branch USACRREL 72 Lyme Rd, Hanover, NH 03755 cathleen@cis.udel.edu Abstract Sea-ice motion consists of complex non-rigid motions in- volving continuous, piece-wise continuous

Delaware, University of

468

Site Environmental Report for 2005 Volume I and Volume II  

E-Print Network [OSTI]

Treatment Units; Rainwater; Stormwater; Sewer Sewer Creeksresults for rainwater, creeks, stormwater, and wastewater.4-3 Creek, Rainwater, and Stormwater Sampling Locations in

Ruggieri, Michael

2006-01-01T23:59:59.000Z

469

Enhanced AFCI Sampling, Analysis, and Safeguards Technology Review  

SciTech Connect (OSTI)

The focus of this study includes the investigation of sampling technologies used in industry and their potential application to nuclear fuel processing. The goal is to identify innovative sampling methods using state of the art techniques that could evolve into the next generation sampling and analysis system for metallic elements. Sampling and analysis of nuclear fuel recycling plant processes is required both to monitor the operations and ensure Safeguards and Security goals are met. In addition, environmental regulations lead to additional samples and analysis to meet licensing requirements. The volume of samples taken by conventional means, can restrain productivity while results samples are analyzed, require process holding tanks that are sized to meet analytical issues rather than process issues (and that create a larger facility footprint), or, in some cases, simply overwhelm analytical laboratory capabilities. These issues only grow when process flowsheets propose new separations systems and new byproduct material for transmutation purposes. Novel means of streamlining both sampling and analysis are being evaluated to increase the efficiency while meeting all requirements for information. This report addresses just a part of the effort to develop and study novel methods by focusing on the sampling and analysis of aqueous samples for metallic elements. It presents an overview of the sampling requirements, including frequency, sensitivity, accuracy, and programmatic drivers, to demonstrate the magnitude of the task. The sampling and analysis system needed for metallic element measurements is then discussed, and novel options being applied to other industrial analytical needs are presented. Inductively coupled mass spectrometry instruments are the most versatile for metallic element analyses and are thus chosen as the focus for the study. Candidate novel means of process sampling, as well as modifications that are necessary to couple such instruments to introduce these samples, are discussed. A suggested path forward based on an automated microchip capillary based sampling system interfaced to the analysis spectrometer is presented. The ability to obtain micro liter volume samples coupled with remote automated means of sample tracking and transport to the instrument would greatly improve analytical efficiency while reducing both personnel exposure and radioactive waste. Application of this sampling technique to new types of mass spectrometers for selective elemental isotopic analysis could also provide significant improvements in safeguards and security analyses.

John Svoboda

2009-09-01T23:59:59.000Z

470

Petroleum Supply Annual 2005, Volume 1  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Supply Annual 2005, Volume 1 Released: October 23, 2006 Petroleum Supply Annual 2005, Volume 1 --- All Tables in PDF (1.0 MB) CSV XLS --- All CSV and XLS files contained in a...

471

Statistically Equivalent Representative Volume Elements for Unidirectional  

E-Print Network [OSTI]

Statistically Equivalent Representative Volume Elements for Unidirectional Composite the statistically equivalent representative volume element (SERVE) are proposed for fiber-reinforced microstructures using a bilinear cohesive zone law. As introduced in the first article, a combination of statistical

Ghosh, Somnath

472

Water Sample Concentrator  

ScienceCinema (OSTI)

Automated portable device that concentrates and packages a sample of suspected contaminated water for safe, efficient transport to a qualified analytical laboratory. This technology will help safeguard against pathogen contamination or chemical and biolog

Idaho National Laboratory

2010-01-08T23:59:59.000Z

473

A High Resolution Hydrometer Phase Classifier Based on Analysis of Cloud Radar Doppler Spectra.  

SciTech Connect (OSTI)

The lifecycle and radiative properties of clouds are highly sensitive to the phase of their hydrometeors (i.e., liquid or ice). Knowledge of cloud phase is essential for specifying the optical properties of clouds, or else, large errors can be introduced in the calculation of the cloud radiative fluxes. Current parameterizations of cloud water partition in liquid and ice based on temperature are characterized by large uncertainty (Curry et al., 1996; Hobbs and Rangno, 1998; Intriery et al., 2002). This is particularly important in high geographical latitudes and temperature ranges where both liquid droplets and ice crystal phases can exist (mixed-phase cloud). The mixture of phases has a large effect on cloud radiative properties, and the parameterization of mixed-phase clouds has a large impact on climate simulations (e.g., Gregory and Morris, 1996). Furthermore, the presence of both ice and liquid affects the macroscopic properties of clouds, including their propensity to precipitate. Despite their importance, mixed-phase clouds are severely understudied compared to the arguably simpler single-phase clouds. In-situ measurements in mixed-phase clouds are hindered due to aircraft icing, difficulties distinguishing hydrometeor phase, and discrepancies in methods for deriving physical quantities (Wendisch et al. 1996, Lawson et al. 2001). Satellite-based retrievals of cloud phase in high latitudes are often hindered by the highly reflecting ice-covered ground and persistent temperature inversions. From the ground, the retrieval of mixed-phase cloud properties has been the subject of extensive research over the past 20 years using polarization lidars (e.g., Sassen et al. 1990), dual radar wavelengths (e.g., Gosset and Sauvageot 1992; Sekelsky and McIntosh, 1996), and recently radar Doppler spectra (Shupe et al. 2004). Millimeter-wavelength radars have substantially improved our ability to observe non-precipitating clouds (Kollias et al., 2007) due to their excellent sensitivity that enables the detection of thin cloud layers and their ability to penetrate several non-precipitating cloud layers. However, in mixed-phase clouds conditions, the observed Doppler moments are dominated by the highly reflecting ice crystals and thus can not be used to identify the cloud phase. This limits our ability to identify the spatial distribution of cloud phase and our ability to identify the conditions under which mixed-phase clouds form.

Luke,E.; Kollias, P.

2007-08-06T23:59:59.000Z

474

Site Environmental Report for 2005 Volume I and Volume II  

SciTech Connect (OSTI)

Each year, Ernest Orlando Lawrence Berkeley National Laboratory prepares an integrated report on its environmental programs to satisfy the requirements of United States Department of Energy Order 231.1A, ''Environment, Safety, and Health Reporting''. The ''Site Environmental Report for 2005'' summarizes Berkeley Lab's environmental management performance, presents environmental monitoring results, and describes significant programs for calendar year 2005. (Throughout this report, Ernest Orlando Lawrence Berkeley National Laboratory is referred to as ''Berkeley Lab'', ''the Laboratory'', ''Lawrence Berkeley National Laboratory'', and ''LBNL''.) The report is separated into two volumes. Volume I contains an overview of the Laboratory, the status of environmental programs, and summarized results from surveillance and monitoring activities. This year's Volume I text body is organized into an executive summary followed by six chapters. The report's structure has been reorganized this year, and it now includes a chapter devoted to environmental management system topics. Volume II contains individual data results from surveillance and monitoring activities. The ''Site Environmental Report'' is distributed by releasing it on the Web from the Berkeley Lab Environmental Services Group (ESG) home page, which is located at http://www.lbl.gov/ehs/esg/. Many of the documents cited in this report also are accessible from the ESG Web page. CD and printed copies of this Site Environmental Report are available upon request. The report follows the Laboratory's policy of using the International System of Units (SI), also known as the metric system of measurements. Whenever possible, results are also reported using the more conventional (non-SI) system of measurements, because the non-SI system is referenced by several current regulatory standards and is more familiar to some readers. Two tables are provided at the end of the Glossary to help readers: the first defines the prefixes used with SI units of measurement, and the second provides conversions to non-SI units.

Ruggieri, Michael

2006-07-07T23:59:59.000Z

475

Dissolution actuated sample container  

DOE Patents [OSTI]

A sample collection vial and process of using a vial is provided. The sample collection vial has an opening secured by a dissolvable plug. When dissolved, liquids may enter into the interior of the collection vial passing along one or more edges of a dissolvable blocking member. As the blocking member is dissolved, a spring actuated closure is directed towards the opening of the vial which, when engaged, secures the vial contents against loss or contamination.

Nance, Thomas A.; McCoy, Frank T.

2013-03-26T23:59:59.000Z

476

SAMPLING AND ANALYSIS PROTOCOLS  

SciTech Connect (OSTI)

Radiological sampling and analyses are performed to collect data for a variety of specific reasons covering a wide range of projects. These activities include: Effluent monitoring; Environmental surveillance; Emergency response; Routine ambient monitoring; Background assessments; Nuclear license termination; Remediation; Deactivation and decommissioning (D&D); and Waste management. In this chapter, effluent monitoring and environmental surveillance programs at nuclear operating facilities and radiological sampling and analysis plans for remediation and D&D activities will be discussed.

Jannik, T; P Fledderman, P

2007-02-09T23:59:59.000Z

477

Liquid sampling system  

DOE Patents [OSTI]

A conduit extends from a reservoir through a sampling station and back to the reservoir in a closed loop. A jet ejector in the conduit establishes suction for withdrawing liquid from the reservoir. The conduit has a self-healing septum therein upstream of the jet ejector for receiving one end of a double-ended cannula, the other end of which is received in a serum bottle for sample collection. Gas is introduced into the conduit at a gas bleed between the sample collection bottle and the reservoir. The jet ejector evacuates gas from the conduit and the bottle and aspirates a column of liquid from the reservoir at a high rate. When the withdrawn liquid reaches the jet ejector the rate of flow therethrough reduces substantially and the gas bleed increases the pressure in the conduit for driving liquid into the sample bottle, the gas bleed forming a column of gas behind the withdrawn liquid column and interrupting the withdrawal of liquid from the reservoir. In the case of hazardous and toxic liquids, the sample bottle and the jet ejector may be isolated from the reservoir and may be further isolated from a control station containing remote manipulation means for the sample bottle and control valves for the jet ejector and gas bleed. 5 figs.

Larson, L.L.

1984-09-17T23:59:59.000Z

478

Verifying Volume Rendering Using Discretization Error Analysis  

E-Print Network [OSTI]

Verifying Volume Rendering Using Discretization Error Analysis Tiago Etiene, Daniel Jo¨nsson, Timo--We propose an approach for verification of volume rendering correctness based on an analysis of the volume rendering integral, the basis of most DVR algorithms. With respect to the most common discretization

Kirby, Mike

479

Estimating Saturated Hydraulic Conductivity from Surface Ground-Penetrating Radar Monitoring of Infiltration  

E-Print Network [OSTI]

In this study we used Hydrus-1D to simulate water infiltration from a ring infiltrometer. We generated water content profiles at each time step of infiltration, based on a particular value of the saturated hydraulic conductivity while knowing the other van Genuchten parameters. Water content profiles were converted to dielectric permittivity profiles using the Complex Refractive Index Method relation. We then used the GprMax suite of programs to generate radargrams and to follow the wetting front using arrival time of electromagnetic waves recorded by a Ground-Penetrating Radar (GPR). Theoretically, the depth of the inflection point of the water content profile simulated at any infiltration time step is related to the peak of the reflected amplitude recorded in the corresponding trace in the radargram. We used this relationship to invert the saturated hydraulic conductivity for constant and falling head infiltrations. We present our method on synthetic examples and on two experiments carried out on sand. We f...

Léger, Emmanuel; Coquet, Yves

2013-01-01T23:59:59.000Z

480

Waste minimization handbook, Volume 1  

SciTech Connect (OSTI)

This technical guide presents various methods used by industry to minimize low-level radioactive waste (LLW) generated during decommissioning and decontamination (D and D) activities. Such activities generate significant amounts of LLW during their operations. Waste minimization refers to any measure, procedure, or technique that reduces the amount of waste generated during a specific operation or project. Preventive waste minimization techniques implemented when a project is initiated can significantly reduce waste. Techniques implemented during decontamination activities reduce the cost of decommissioning. The application of waste minimization techniques is not limited to D and D activities; it is also useful during any phase of a facility`s life cycle. This compendium will be supplemented with a second volume of abstracts of hundreds of papers related to minimizing low-level nuclear waste. This second volume is expected to be released in late 1996.

Boing, L.E.; Coffey, M.J.

1995-12-01T23:59:59.000Z

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


481

MACHINE CONTEST MACHINE VOLUME WORKSHEET  

E-Print Network [OSTI]

MACHINE CONTEST® MACHINE VOLUME WORKSHEET Note: Each square is 1' x 1' (0.3 m x 0.3 m) (Official the footprint of your machine NOTE: If any part of the machine falls within a square, you must count the entire: _______________ (choose one: ft2 or m2 ) STEP 3: Measure the height of your machine. NOTE: The maximum height is 8' (2.4 m

Yener, Aylin

482

Fluid sampling system  

DOE Patents [OSTI]

An fluid sampling system allows sampling of radioactive liquid without spillage. A feed tank is connected to a liquid transfer jet powered by a pumping chamber pressurized by compressed air. The liquid is pumped upwardly into a sampling jet of a venturi design having a lumen with an inlet, an outlet, a constricted middle portion, and a port located above the constricted middle portion. The liquid is passed under pressure through the constricted portion causing its velocity to increase and its pressure to be decreased, thereby preventing liquid from escaping. A septum sealing the port can be pierced by a two pointed hollow needle leading into a sample bottle also sealed by a pierceable septum affixed to one end. The bottle is evacuated by flow through the sample jet, cyclic variation in the sampler jet pressure periodically leaves the evacuated bottle with lower pressure than that of the port, thus causing solution to pass into the bottle. The remaining solution in the system is returned to the feed tank via a holding tank. 4 figs.

Houck, E.D.

1994-10-11T23:59:59.000Z

483

Fluid sampling system  

DOE Patents [OSTI]

An fluid sampling system allows sampling of radioactive liquid without spillage. A feed tank is connected to a liquid transfer jet powered by a pumping chamber pressurized by compressed air. The liquid is pumped upwardly into a sampling jet of a venturi design having a lumen with an inlet, an outlet, a constricted middle portion, and a port located above the constricted middle portion. The liquid is passed under pressure through the constricted portion causing its velocity to increase and its pressure to decreased, thereby preventing liquid from escaping. A septum sealing the port can be pierced by a two pointed hollow needle leading into a sample bottle also sealed by a pierceable septum affixed to one end. The bottle is evacuated by flow through the sample jet, cyclic variation in the sampler jet pressure periodically leaves the evacuated bottle with lower pressure than that of the port, thus causing solution to pass into the bottle. The remaining solution in the system is returned to the feed tank via a holding tank.

Houck, Edward D. (Idaho Falls, ID)

1994-01-01T23:59:59.000Z

484

Petroleum supply annual 1994. Volume 1  

SciTech Connect (OSTI)

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1994 through annual and monthly surveys. The PSA is divided into two volumes. This first volume contains four sections: Summary Statistics, Detailed Statistics, Refinery Capacity, and Oxygenate Capacity each with final annual data. The second volume contains final statistics for each month of 1994, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Below is a description of each section in Volume 1 of the PSA.

NONE

1995-05-22T23:59:59.000Z

485

Petroleum supply annual 1993. Volume 1  

SciTech Connect (OSTI)

The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1993 through annual and monthly surveys. The PSA is divided into two volumes. This first volume contains four sections: Summary Statistics, Detailed Statistics, Refinery Capacity, and Oxygenate Capacity each with final annual data. The second volume contains final statistics for each month of 1993, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Below is a description of each section in Volume 1 of the PSA.

Not Available

1994-06-01T23:59:59.000Z

486

THE JOURNAL OF CHEMICAL PHYSICS VOLUME 59, NUMBER 8 15 OCTOBER 1973 Optical pumping of molecules II. Relaxation studies *  

E-Print Network [OSTI]

THE JOURNAL OF CHEMICAL PHYSICS VOLUME 59, NUMBER 8 15 OCTOBER 1973 Optical pumping of molecules II exceeds the diameter of the light beam which both pumps and samples the alignment, the relaxation. INTRODUCTION Optical pumping consists of the transfer of order from a light beam to a material sample. The op

Zare, Richard N.

487

Viscous sludge sample collector  

DOE Patents [OSTI]

A vertical core sample collection system for viscous sludge. A sample tube's upper end has a flange and is attached to a piston. The tube and piston are located in the upper end of a bore in a housing. The bore's lower end leads outside the housing and has an inwardly extending rim. Compressed gas, from a storage cylinder, is quickly introduced into the bore's upper end to rapidly accelerate the piston and tube down the bore. The lower end of the tube has a high sludge entering velocity to obtain a full-length sludge sample without disturbing strata detail. The tube's downward motion is stopped when its upper end flange impacts against the bore's lower end inwardly extending rim.

Beitel, George A [Richland, WA

1983-01-01T23:59:59.000Z

488

Volumes  

Gasoline and Diesel Fuel Update (EIA)

W 803.9 1,360.3 214.2 2,378.3 W W 172.8 133.2 - 305.9 See footnotes at end of table. 220 Energy Information AdministrationPetroleum Marketing Annual 1999 Table 43. Refiner Motor...

489

Volumes  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

W W 830.4 W W 2,295.3 W W 190.9 133.6 - 324.5 See footnotes at end of table. 220 Energy Information AdministrationPetroleum Marketing Annual 1998 Table 43. Refiner Motor...

490

Volumes  

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

W 872.9 1,737.8 282.7 2,893.4 W W 132.1 117.6 - 249.7 See footnotes at end of table. 220 Energy Information AdministrationPetroleum Marketing Annual 2002 Table 43. Refiner Motor...

491

Volumes  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

W NA W 1,666.1 W 2,880.1 NA W 134.2 125.5 - 259.7 See footnotes at end of table. 220 Energy Information AdministrationPetroleum Marketing Annual 2001 Table 43. Refiner Motor...

492

VOLUME  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field EmissionFunctionalPortalV1 - March8, NUMBER 18 P

493

VOLUME  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field EmissionFunctionalPortalV1 - March8, NUMBER 18

494

VOLUME  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field EmissionFunctionalPortalV1 - March8, NUMBER 180,

495

VOLUME  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field EmissionFunctionalPortalV1 - March8, NUMBER

496

VOLUME  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field EmissionFunctionalPortalV1 - March8, NUMBER3 P H

497

VOLUME  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field EmissionFunctionalPortalV1 - March8, NUMBER3 P H6

498

VOLUME  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field EmissionFunctionalPortalV1 - March8, NUMBER3 P

499

VOLUME  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field EmissionFunctionalPortalV1 - March8, NUMBER3 P8,

500

VOLUME  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field EmissionFunctionalPortalV1 - March8, NUMBER3