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1

DOE/SC-ARM/TR-120 Raman Lidar Profiles-Temperature  

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

0 0 Raman Lidar Profiles-Temperature (RLPROFTEMP) Value-Added Product RK Newsom C Sivaraman SA McFarlane October 2012 DISCLAIMER This report was prepared as an account of work sponsored by the U.S. Government. Neither the United States nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or

2

Lidar Report  

SciTech Connect (OSTI)

This report provides an overview of the LiDAR acquisition methodology employed by Woolpert on the 2009 USDA - Savannah River LiDAR Site Project. LiDAR system parameters and flight and equipment information is also included. The LiDAR data acquisition was executed in ten sessions from February 21 through final reflights on March 2, 2009; using two Leica ALS50-II 150kHz Multi-pulse enabled LiDAR Systems. Specific details about the ALS50-II systems are included in Section 4 of this report.

Wollpert.

2009-04-01T23:59:59.000Z

3

Micropulse Lidar (MPL) Handbook  

SciTech Connect (OSTI)

The micropulse lidar (MPL) is a ground-based optical remote sensing system designed primarily to determine the altitude of clouds overhead. The physical principle is the same as for radar. Pulses of energy are transmitted into the atmosphere; the energy scattered back to the transceiver is collected and measured as a time-resolved signal. From the time delay between each outgoing transmitted pulse and the backscattered signal, the distance to the scatterer is infered. Besides real-time detection of clouds, post-processing of the lidar return can also characterize the extent and properties of aerosol or other particle-laden regions.

Mendoza, A; Flynn, C

2006-05-01T23:59:59.000Z

4

Mobile multiwave lidar complexes  

Science Journals Connector (OSTI)

Multiwave mobile lidar complexes (MLCs) are designed and developed. A number of vehicle-based MLCs are built. The set of complex lidar probing data obtained with the help of MLCs is synchronised in space and time, covers a large area (the operation range of an MLC is 15 km), and is based on a unified methodological approach. The results of probing contain information on the concentration and physical nature of atmospheric aerosol, chemical composition of the gaseous phase of the atmosphere, wind and turbulence. The obtained data form the basis for a complex analysis of the ecological situation and prognosis of its development.

A S Boreysho; M A Konyaev; A V Morozov; A V Pikulik; A V Savin; A V Trilis; S Ya Chakchir; N I Boiko; Yu N Vlasov; S P Nikitaev; A V Rozhnov

2005-01-01T23:59:59.000Z

5

Can Wind Lidars Measure Turbulence?  

Science Journals Connector (OSTI)

Modeling of the systematic errors in the second-order moments of wind speeds measured by continuous-wave (ZephIR) and pulsed (WindCube) lidars is presented. These lidars use the conical scanning technique to measure the velocity field. The model ...

A. Sathe; J. Mann; J. Gottschall; M. S. Courtney

2011-07-01T23:59:59.000Z

6

Raman Lidar (RL) Handbook  

SciTech Connect (OSTI)

The Raman lidar at the ARM Climate Research Facility (ACRF) Southern Great Plains (SGP) Central Facility (SGPRL) is an active, ground-based laser remote sensing instrument that measures height and time resolved profiles of water vapor mixing ratio and several cloud- and aerosol-related quantities. The system is a non-commercial custom-built instrument developed by Sandia National Laboratories specifically for the ARM Program. It is fully computer automated, and will run unattended for many days following a brief (~5-minute) startup period. The self-contained system (requiring only external electrical power) is housed in a climate-controlled 8’x8’x20’ standard shipping container.

Newsom, RK

2009-03-01T23:59:59.000Z

7

NASA DC-8 Airborne Scanning Lidar System  

Science Journals Connector (OSTI)

A scanning lidar system is being developed for installation on the NASA DC-8 atmospheric research aircraft to support...in-situ aerosol and gas measurements. Design and objectives of the DC-8 scanning lidar are p...

Norman B. Nielsen; Edward E. Uthe…

1997-01-01T23:59:59.000Z

8

Raman lidar and MPL Measurements during ALIVE  

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

Raman lidar and MPL Measurements during ALIVE Raman lidar and MPL Measurements during ALIVE Ferrare, Richard NASA Langley Research Center Turner, David University of Wisconsin-Madison Flynn, Connor Pacific Northwest National Laboratory Petty, Diana Pacific Northwest National Laboratory Mendoza, Albert Pacific Northwest National Laboratory Clayton, Marian NASA Langley Research Center Schmid, Beat Bay Area Environmental Research Institute Category: Field Campaigns Analysis of the aerosol and water vapor data collected by the Raman lidar during the May 2003 Aerosol IOP indicated that the sensitivity of the lidar was significantly lower than when the lidar was initially deployed. This decrease in sensitivity contributed to a significant high bias of the Raman lidar aerosol extinction measurements in relation to airborne Sun

9

Fluorescence lidar monitoring of historic buildings  

Science Journals Connector (OSTI)

Laser-induced fluorescence spectra detected with high-spectral-resolution lidar on the facades of the Baptistery and the Cathedral in Parma are presented and discussed. The...

Raimondi, Valentina; Cecchi, Giovanna; Pantani, Luca; Chiari, Roberto

1998-01-01T23:59:59.000Z

10

Airborne Doppler Lidar Wind Field Measurements  

Science Journals Connector (OSTI)

A coherent Doppler lidar has been used in an aircraft to measure the 2-dimensional wind field in a number of different atmospheric situations. The lidar, a pulsed CO2 system, was installed in the NASA Convair 990. Galileo II, and flown in a ...

J. Bilbro; G. Fichtl; D. Fitzjarrald; M. Krause; R. Lee

1984-04-01T23:59:59.000Z

11

Definition: LiDAR | Open Energy Information  

Open Energy Info (EERE)

LiDAR LiDAR Jump to: navigation, search Dictionary.png LiDAR Light Detection and Ranging (LiDAR) is an active remote sensing technology that uses optical measurements of scattered light to find range (Young, 2006). Measurements can be made from aircraft- or land-based sensors. Distance to an object is determined by the time delay between transmission and detection of a laser pulse. It is accurate to within 0.1 m (at 1-m resolution, 0.3 m at 3-m resolution) and has the ability to measure the land surface elevation beneath the vegetation canopy. View on Wikipedia Wikipedia Definition Also Known As Light Detection And Ranging Related Terms DEM, Digital Elevation Model tran LikeLike UnlikeLike You like this.Sign Up to see what your friends like. smission lines,transmission line,transmission

12

Development of LED mini-Lidar  

Science Journals Connector (OSTI)

In this study, we aim to develop a mini-lidar system using a LED (Light Emitting Diode) as the light source for near-range measurement. Because LED is small size device and its...

Koyama, Moriaki; Shiina, Tatsuo

13

Lidar characterization of crystalline silica generation and gravel plant  

E-Print Network [OSTI]

The lidar vertical pro?les and wind speed data were used toof wind speed and concentration (based on lidar verticalvertical plane at a given height, z, was calculated as the product of the wind speed

Trzepla-Nabaglo, K.; Shiraki, R.; Holm'en, B. A.

2006-01-01T23:59:59.000Z

14

Semiconductor Laser Lidar Wind Velocity Sensor for Turbine Control  

Science Journals Connector (OSTI)

A dual line-of-sight CW lidar that measures both wind speed and direction is presented. The wind lidar employs a semiconductor laser, which allows for inexpensive remote sensors geared...

Rodrigo, Peter John; Hu, Qi; Pedersen, Christian

15

LiDAR | Open Energy Information  

Open Energy Info (EERE)

LiDAR LiDAR Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: LiDAR Details Activities (10) Areas (5) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Remote Sensing Techniques Exploration Sub Group: Active Sensors Parent Exploration Technique: Active Sensors Information Provided by Technique Lithology: Stratigraphic/Structural: delineate faults, create high-resolution DEMS, quantify fault kinemaics, develop lineament maps Hydrological: Thermal: Cost Information Low-End Estimate (USD): 300.0030,000 centUSD 0.3 kUSD 3.0e-4 MUSD 3.0e-7 TUSD / sq. mile Median Estimate (USD): 850.0085,000 centUSD 0.85 kUSD 8.5e-4 MUSD 8.5e-7 TUSD / sq. mile High-End Estimate (USD): 1,300.00130,000 centUSD 1.3 kUSD 0.0013 MUSD 1.3e-6 TUSD / sq. mile

16

Raman lidar/AERI PBL Height Product  

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

Planetary Boundary Layer (PBL) heights have been computed using potential temperature profiles derived from Raman lidar and AERI measurements. Raman lidar measurements of the rotational Raman scattering from nitrogen and oxygen are used to derive vertical profiles of potential temperature. AERI measurements of downwelling radiance are used in a physical retrieval approach (Smith et al. 1999, Feltz et al. 1998) to derive profiles of temperature and water vapor. The Raman lidar and AERI potential temperature profiles are merged to create a single potential temperature profile for computing PBL heights. PBL heights were derived from these merged potential temperature profiles using a modified Heffter (1980) technique that was tailored to the SGP site (Della Monache et al., 2004). PBL heights were computed on an hourly basis for the period January 1, 2009 through December 31, 2011. These heights are provided as meters above ground level.

Ferrare, Richard

17

Systematic Sampling of Scanning Lidar Swaths  

E-Print Network [OSTI]

Popescu Proof of concept lidar research has, to date, examined wall-to-wall models of forest ecosystems. While these studies have been important for verifying lidars efficacy for forest surveys, complete coverage is likely not the most cost effective... year of my graduate studies. Also, to Jin Zhu and the other members of the Aerial Photography project at the Texas Forest Service for opening my eyes to the practical uses of GIS and remote sensing, their encouragement for me to obtain a graduate...

Marcell, Wesley Tyler

2011-02-22T23:59:59.000Z

18

E-Print Network 3.0 - aerosol lidar profilometer Sample Search...  

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

CLASIC Summary: Lidar RH Changes in aerosol properties and RH near clouds Airborne NASA LaRC HSRL, ARM SGP ground... ) RamanLidar RelativeHumidityRamanLidar Aerosol Extensive...

19

E-Print Network 3.0 - absorption lidar performance Sample Search...  

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

performed with the lidar25 operated simultaneously at Bordeaux (550 km away... . The NASA God- dard Space Flight Center (GSFC) mobile lidar system ... Source: Ecole Polytechnique,...

20

Raman Lidar Measurements of Aerosols and Water Vapor During the...  

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

modifications reduced but could not eliminate these adverse effects. The Raman lidar water vapor (aerosol extinction) measurements produced by these modified algorithms were,...

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

EN-025 Tools & Applications December 2008 Lidar Remote Sensing  

E-Print Network [OSTI]

IS LIDAR? Lidar (light detection and ranging system) is a relatively new type of active remote sensing are small-footprint, discrete return systems that record two to five returns for each emitted laser pulse fashion as an aerial photography camera. · An inertial measurement unit that records the pitch, yaw

22

Ris-PhD-Report Complex Terrain and Wind Lidars  

E-Print Network [OSTI]

calculations over the same terrains. The lidar performance was also simulated with the commercial software WAs;#12;Author: Ferhat Bingöl Title: Complex terrain and wind lidars Division: Wind Energy Division Risø-PhD-52 and the comparison of the measurement data with the flow model outputs showed that the mean wind speed calculated

23

Validation of Innovative Exploration Technologies for Newberry Volcano: LIDAR of Newberry Volcano 2012  

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

Validation of Innovative Exploration Technologies for Newberry Volcano: LIDAR of Newberry Volcano 2012

Jaffe, Todd

24

The influence of LiDAR pulse density on the precision of inventory metrics in young unthinned Douglas-fir stands during initial and subsequent LiDAR acquisitions  

Science Journals Connector (OSTI)

LiDAR is an established technology that is increasingly being used to characterise spatial variation in stand metrics used in forest inventory. As the cost of LiDAR acquisition markedly declines with LiDAR pul...

Michael S Watt; Andrew Meredith; Pete Watt…

2014-08-01T23:59:59.000Z

25

Atmospheric Data, Images, and Animations from Lidar Instruments used by the University of Wisconsin Lidar Group  

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

The Space Science and Engineering Center is a research and development center affiliated with the University of Wisconsin-Madison’s Graduate School. Its primary focus is on geophysical research and technology to enhance understanding of the atmosphere of Earth, the other planets in the Solar System, and the cosmos. SSEC develops new observing tools for spacecraft, aircraft, and ground-based platforms, and models atmospheric phenomena. The Center receives, manages and distributes huge amounts of geophysical data and develops software to visualize and manipulate these data for use by researchers and operational meteorologists all over the world.[Taken from About SSEC at http://www.ssec.wisc.edu/overview/] A huge collection of data products, images, and animations comes to the SSEC from the University of Wisconsin Lidar Group. Contents of this collection include: • An archive of thousands of Lidar images acquired before 2004 • Arctic HSRL, MMCR, PAERI, MWR, Radiosonde, and CRAS forecast data Data after May 1, 2004 • MPEG animations and Lidar Multiple Scattering Models

26

Mitigation of Coastal Bluff Instability in San Diego County, California/Evaluating Seacliff Morphology and Erosion Control in San Diego County Using LIDAR and GIS  

E-Print Network [OSTI]

County Using LIDAR and GIS In order to evaluate seacliffgeographic information systems (GIS) analysis. LIDAR is the

Ashford, Scott

2005-01-01T23:59:59.000Z

27

LiDAR (Laney, 2005) | Open Energy Information  

Open Energy Info (EERE)

LiDAR (Laney, 2005) LiDAR (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: LiDAR (Laney, 2005) Exploration Activity Details Location Unspecified Exploration Technique LiDAR Activity Date Usefulness not indicated DOE-funding Unknown Notes Design of Sampling Strategies to Detect CO2 Emissions From Hidden Geothermal Systems, Lewicki, Oldenburg and Kennedy. The objective of this project is to investigate geothermal CO2 monitoring in the near surface as a tool to discover hidden geothermal reservoirs. A primary goal of this project is to develop an approach that places emphasis on cost and time-efficient near-surface exploration methods and yields results to guide and focus more cost-intensive geophysical measurements, installation of

28

ARM - Field Campaign - Boundary Layer CO2 Using CW Lidar  

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

govCampaignsBoundary Layer CO2 Using CW Lidar govCampaignsBoundary Layer CO2 Using CW Lidar Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Boundary Layer CO2 Using CW Lidar 2005.05.21 - 2005.05.24 Lead Scientist : Michael Dobbs Description Overflights Underway at ACRF Southern Great Plains Site (M.Dobbs/J.Liljegren) Science collaborators at ITT Industries and the National Aeronautics and Space Administration (NASA) Langley Research Center (LaRC) conducted flights over the Central Facility at ACRF's Southern Great Plains (SGP) site as part of the Climate Sources and Sink (CO2) Intensive Operational Period (IOP), using a CW lidar. The objective of the flights was to validate, by demonstration and comparison with SGP ground observations, the performance of the ITT system when used in conjunction with retrieval

29

URBAN MODELING FROM LIDAR DATA IN AN INTEGRATED GIS ENVIRONMENT  

E-Print Network [OSTI]

are analyzed and possible solutions are proposed by fusing lidar data with other image data. Study shows: it allows rapid generation large-scale DTM (digital terrain model); is daylight independent; is relatively

Shan, Jie

30

Comparison of 2- and 10-µm Coherent Doppler Lidar Performance  

Science Journals Connector (OSTI)

The performance of 2- and 10-µm coherent Doppler lidar is presented in terms of the statistical distribution of the maximum-likelihood velocity estimator from simulations for fixed range resolution and fixed velocity search space as a function of ...

Rod Frehlich

1995-04-01T23:59:59.000Z

31

Cirrus Classification at Midlatitude from Systematic Lidar Observations  

Science Journals Connector (OSTI)

Systematic cirrus lidar measurements performed in the south of France during 2000 are analyzed statistically to search for cloud classes. The classes are based on cloud characteristics (cloud thickness, light backscattering efficiency, and its ...

P. Keckhut; F. Borchi; S. Bekki; A. Hauchecorne; M. SiLaouina

2006-02-01T23:59:59.000Z

32

Oil spill fluorosensing lidar for inclined onshore or shipboard operation  

Science Journals Connector (OSTI)

An oil spill detection fluorosensing lidar for onshore or shipboard operation is described. Some difficulties for its operation arise from the inclined path of rays. This is due to...

Karpicz, Renata; Dementjev, Andrej; Kuprionis, Zenonas; Pakalnis, Saulius; Westphal, Rainer; Reuter, Rainer; Gulbinas, Vidmantas

2006-01-01T23:59:59.000Z

33

LIDAR Wind Speed Measurements of Evolving Wind Fields  

SciTech Connect (OSTI)

Light Detection and Ranging (LIDAR) systems are able to measure the speed of incoming wind before it interacts with a wind turbine rotor. These preview wind measurements can be used in feedforward control systems designed to reduce turbine loads. However, the degree to which such preview-based control techniques can reduce loads by reacting to turbulence depends on how accurately the incoming wind field can be measured. Past studies have assumed Taylor's frozen turbulence hypothesis, which implies that turbulence remains unchanged as it advects downwind at the mean wind speed. With Taylor's hypothesis applied, the only source of wind speed measurement error is distortion caused by the LIDAR. This study introduces wind evolution, characterized by the longitudinal coherence of the wind, to LIDAR measurement simulations to create a more realistic measurement model. A simple model of wind evolution is applied to a frozen wind field used in previous studies to investigate the effects of varying the intensity of wind evolution. LIDAR measurements are also evaluated with a large eddy simulation of a stable boundary layer provided by the National Center for Atmospheric Research. Simulation results show the combined effects of LIDAR errors and wind evolution for realistic turbine-mounted LIDAR measurement scenarios.

Simley, E.; Pao, L. Y.

2012-07-01T23:59:59.000Z

34

Mapping surface fuels using LIDAR and multispectral data fusion for fire behavior modeling  

E-Print Network [OSTI]

, LIDAR derived data provides accurate estimates of surface fuel parameters efficiently and accurately over extensive areas of forests. This study demonstrates the importance of using accurate maps of fuel models derived using new LIDAR remote sensing...

Mutlu, Muge

2009-05-15T23:59:59.000Z

35

Long-Term Evaluation of Temperature Profiles Measured by an Operational Raman Lidar  

Science Journals Connector (OSTI)

This study investigates the accuracy and calibration stability of temperature profiles derived from an operational Raman lidar over a 2-yr period from 1 January 2009 to 31 December 2010. The lidar, which uses the rotational Raman technique for ...

Rob K. Newsom; David D. Turner; John E. M. Goldsmith

2013-08-01T23:59:59.000Z

36

Lidar Scanning of Momentum Flux in and above the Atmospheric Surface Layer  

Science Journals Connector (OSTI)

Methods to measure the vertical flux of horizontal momentum using both continuous wave and pulsed Doppler lidar profilers are evaluated. The lidar measurements are compared to momentum flux observations performed with sonic anemometers over flat ...

J. Mann; A. Peña; F. Bingöl; R. Wagner; M. S. Courtney

2010-06-01T23:59:59.000Z

37

Alternate spatial sampling approaches for ecosystem structure inventory using spaceborne lidar  

E-Print Network [OSTI]

used in aircraft lidar remote sensing where power, heat, and reliability are less of a concern since January 2011 Accepted 29 January 2011 Available online 23 March 2011 Keywords: Lidar Remote sensing Laser collected in transects and should be considered for future lidar remote sensing missions. © 2011 Elsevier

Lefsky, Michael

38

Advanced Lidars for ARM: What Would We Get?  

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

CMWG Breakout Session CMWG Breakout Session 2009 ARM Science Team Meeting Advanced Lidars for ARM: What Would We Get? Dave Turner, Ed Eloranta University of Wisconsin - Madison CMWG Breakout Session 2009 ARM Science Team Meeting What is an "Advanced Lidar?" (1) * Ceilometer - Max range ~7km, unpolarized, uncalibrated * Micropulse lidar (MPL) - Sensitive to clouds & aerosols throughout troposphere - Small telescope, rep rate is 1.5 kHz, microjoules of power - Loses sensitivity to cirrus in upper trop during the day - Polarization sensitive - Uncalibrated * Backscatter signals measured by both the MPL and the Ceilometer are convolutions of molecular and particle scattering events - Unable to determine particle extinction without significant assumptions - Main use by ARM has been to determine layer boundaries

39

ARM - Field Campaign - Lidar support for ICECAPS at Summit, Greenland  

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

govCampaignsLidar support for ICECAPS at Summit, Greenland govCampaignsLidar support for ICECAPS at Summit, Greenland Campaign Links ICECAPS Campaign Summary (PDF) Summit Station Research Highlight New Data from Greenland for Arctic Climate Research Cloud Cocktail Melts Greenland Ice Sheet Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Lidar support for ICECAPS at Summit, Greenland 2010.04.15 - 2014.10.31 Lead Scientist : David Turner Description Beginning in May 2010, the Integrated Characterization of Energy, Clouds, Atmospheric State, and Precipitation over Summit (ICECAPS) project, funded through the National Science Foundation's Arctic Observing Network, is deploying a suite of remote sensors at Summit, Greenland, for four years. With dining facilities and communications gear, the "Big House" at Summit Station serves as the central gathering area for site researchers. (Photo courtesy Summit Station.)

40

Assessment and Optimization of Lidar Measurement Availability for Wind Turbine Control: Preprint  

SciTech Connect (OSTI)

Turbine-mounted lidars provide preview measurements of the incoming wind field. By reducing loads on critical components and increasing the potential power extracted from the wind, the performance of wind turbine controllers can be improved [2]. As a result, integrating a light detection and ranging (lidar) system has the potential to lower the cost of wind energy. This paper presents an evaluation of turbine-mounted lidar availability. Availability is a metric which measures the proportion of time the lidar is producing controller-usable data, and is essential when a wind turbine controller relies on a lidar. To accomplish this, researchers from Avent Lidar Technology and the National Renewable Energy Laboratory first assessed and modeled the effect of extreme atmospheric events. This shows how a multirange lidar delivers measurements for a wide variety of conditions. Second, by using a theoretical approach and conducting an analysis of field feedback, we investigated the effects of the lidar setup on the wind turbine. This helps determine the optimal lidar mounting position at the back of the nacelle, and establishes a relationship between availability, turbine rpm, and lidar sampling time. Lastly, we considered the role of the wind field reconstruction strategies and the turbine controller on the definition and performance of a lidar's measurement availability.

Davoust, S.; Jehu, A.; Bouillet, M.; Bardon, M.; Vercherin, B.; Scholbrock, A.; Fleming, P.; Wright, A.

2014-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

INTEGRATED LIDAR & PHOTOGRAMMETRIC DOCUMENTATION OF THE RED GULCH DINOSAUR  

E-Print Network [OSTI]

101 INTEGRATED LIDAR & PHOTOGRAMMETRIC DOCUMENTATION OF THE RED GULCH DINOSAUR TRACKSITE (WYOMING. At the First International Symposium on Dinosaur Tracks and Traces in 1989, concerns were expressed about collection and imaging techniques used to document fossil resources. Digital techniques are typically non

Falkingham, Peter

42

LiDAR At Chocolate Mountains Area (Alm, Et Al., 2010) | Open Energy  

Open Energy Info (EERE)

LiDAR At Chocolate Mountains Area (Alm, Et Al., 2010) LiDAR At Chocolate Mountains Area (Alm, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: LiDAR At Chocolate Mountains Area (Alm, Et Al., 2010) Exploration Activity Details Location Chocolate Mountains Area Exploration Technique LiDAR Activity Date Usefulness useful DOE-funding Unknown Notes Recent exploration includes a high resolution aerial Li-DAR survey flown over the project areas, securing over 177,000 square kilometers of <30cm accuracy digital elevation data. LiDAR data were analyzed to characterize the active tectonic environment, and identify Holocene structures, which are common conduits for upwelling geothermal fluids. References Steve Alm, S. Bjornstad, M. Lazaro, A. Sabin1, D. Meade, J. Shoffner, W. C. Huang, J. Unruh, M. Strane, H. Ross (2010) Geothermal

43

ARM - Evaluation Product - MicroPulse LIDAR Cloud Optical Depth (MPLCOD)  

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

ProductsMicroPulse LIDAR Cloud Optical Depth ProductsMicroPulse LIDAR Cloud Optical Depth (MPLCOD) Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : MicroPulse LIDAR Cloud Optical Depth (MPLCOD) 1999.05.01 - 2004.05.14 Site(s) SGP General Description The MPLCOD VAP retrieves the column cloud visible optical depth using LIDAR derived backscatter from the MPLNOR (Micro Pulse Lidar Normalized Backscatter) and radiosonde thermodynamic profiles. The optical depth retrieval is derived following Comstock et al. (2001), which retrieves visible optical depth and layer average backscatter-to-extinction ratio (k) at the lidar wavelength for each backscatter profile. Data Information Data Directory Contacts Principal Investigator Jennifer Comstock (509) 372-424

44

Assessment and Optimization of Lidar Measurement Availability for Wind Turbine Control (Poster)  

SciTech Connect (OSTI)

Integrating Lidar to improve wind turbine controls is a potential breakthrough for reducing the cost of wind energy. By providing undisturbed wind measurements up to 400m in front of the rotor, Lidar may provide an accurate update of the turbine inflow with a preview time of several seconds. Focusing on loads, several studies have evaluated potential reductions using integrated Lidar, either by simulation or full scale field testing.

Scholbrock, F. A.; Fleming, P.; Wright, A.; Davoust, S.; Jehu, A.; Bouillet, M.; Bardon M.; Vercherin, B.

2014-02-01T23:59:59.000Z

45

Ground-truth aerosol lidar observations: can the Klett solutions obtained from ground and space be equal for the same aerosol case?  

Science Journals Connector (OSTI)

Upcoming multiyear satellite lidar aerosol observations need strong support by a worldwide ground-truth lidar network. In this context the question arises as to whether the ground...

Ansmann, Albert

2006-01-01T23:59:59.000Z

46

NASA’s Space Lidar Measurements of Earth and Planetary Surfaces  

Science Journals Connector (OSTI)

This presentation will give an overview of history, ongoing work, and plans for using space lidar for measurements of planetary surfaces.

Abshire, James B

47

E-Print Network 3.0 - absorption lidar system Sample Search Results  

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

light absorption... lidar system are proposed ... Source: Zavrtanik, Marko - Experimental Particle Physics Department, Jozef Stefan Institute Collection: Physics 77 Atmos. Chem....

48

Structural Analysis of Southern Dixie Valley using LiDAR and...  

Open Energy Info (EERE)

Structural Analysis of Southern Dixie Valley using LiDAR and Low-Sun-Angle Aerial Photography, NAS Fallon Geothermal Exploration Project, Dixie Valley, Nevada Jump to: navigation,...

49

High-resolution lidar observations of mesospheric sodium and implications for adaptive optics  

Science Journals Connector (OSTI)

Observations of sodium density variability in the upper mesosphere/lower thermosphere, obtained using a high-resolution lidar system, show rapid fluctuations in the sodium centroid...

Pfrommer, Thomas; Hickson, Paul

2010-01-01T23:59:59.000Z

50

Comparison of temperature and humidity profiles with elastic-backscatter lidar data  

SciTech Connect (OSTI)

This contribution analyzes elastic-backscatter lidar data and temperature and humidity profiles from radiosondes acquired in Barcelona in July 1992. Elastic-backscatter lidar data reveal the distribution of aerosols within the volume of atmosphere scanned. By comparing this information with temperature and humidity profiles of the atmosphere at a similar time, we are able to asses de relationship among aerosol distribution and atmospheric stability or water content, respectively. Comparisons have shown how lidar`s revealed layers of aerosols correspond to atmospheric layers with different stability condition and water content.

Soriano, C. [Universidad Politecnica de Cataluna, Barcelona (Spain)]|[Los Alamos National Lab., NM (United States); Buttler, W.T. [Los Alamos National Lab., NM (United States); Baldasano, J.M. [Universidad Politecnica de Cataluna, Barcelona (Spain)

1995-04-01T23:59:59.000Z

51

LIDAR Wind Speed Measurements of Evolving Wind Fields  

SciTech Connect (OSTI)

Light Detection and Ranging (LIDAR) systems are able to measure the speed of incoming wind before it interacts with a wind turbine rotor. These preview wind measurements can be used in feedforward control systems that are designed to reduce turbine loads. However, the degree to which such preview-based control techniques can reduce loads by reacting to turbulence depends on how accurately the incoming wind field can be measured. Past studies have assumed the validity of physicist G.I. Taylor's 1938 frozen turbulence hypothesis, which implies that turbulence remains unchanged as it advects downwind at the mean wind speed. With Taylor's hypothesis applied, the only source of wind speed measurement error is distortion caused by the LIDAR. This study introduces wind evolution, characterized by the longitudinal coherence of the wind, to LIDAR measurement simulations using the National Renewable Energy Laboratory's (NREL's) 5-megawatt turbine model to create a more realistic measurement model. A simple model of wind evolution was applied to a frozen wind field that was used in previous studies to investigate the effects of varying the intensity of wind evolution. LIDAR measurements were also evaluated using a large eddy simulation (LES) of a stable boundary layer that was provided by the National Center for Atmospheric Research. The LIDAR measurement scenario investigated consists of a hub-mounted LIDAR that scans a circle of points upwind of the turbine in order to estimate the wind speed component in the mean wind direction. Different combinations of the preview distance that is located upwind of the rotor and the radius of the scan circle were analyzed. It was found that the dominant source of measurement error for short preview distances is the detection of transverse and vertical wind speeds from the line-of-sight LIDAR measurement. It was discovered in previous studies that, in the absence of wind evolution, the dominant source of error for large preview distances is the spatial averaging caused by the LIDAR's sampling volume. However, by introducing wind evolution, the dominant source of error for large preview distances was found to be the coherence loss caused by evolving turbulence. Different measurement geometries were compared using the bandwidth for which the measurement coherence remained above 0.5 and also the area under the measurement coherence curve. Results showed that, by increasing the intensity of wind evolution, the measurement coherence decreases. Using the coherence bandwidth metric, the optimal preview distance for a fixed-scan radius remained almost constant for low and moderate amounts of wind evolution. For the wind field with the simple wind evolution model introduced, the optimal preview distance for a scan radius of 75% blade span (47.25 meters) was found to be 80 meters. Using the LES wind field, the optimal preview distance was 65 meters. When comparing scan geometries using the area under the coherence curve, results showed that, as the intensity of wind evolution increases, the optimal preview distance decreases.

Simley, E.; Pao, L. Y.; Kelley, N.; Jonkman, B.; Frehlich, R.

2012-01-01T23:59:59.000Z

52

Using LiDAR and normalized difference vegetation index to remotely determine LAI and percent canopy cover at varying scales  

E-Print Network [OSTI]

: (1) Develop scanning LiDAR and multispectral imagery methods to estimate PCC and LAI over both hardwood and coniferous forests; (2) investigate whether a LiDAR and normalized difference vegetation index (NDVI) data fusion through linear regression...

Griffin, Alicia Marie Rutledge

2009-05-15T23:59:59.000Z

53

Impact of airborne Doppler wind lidar profiles on numerical simulations of a tropical cyclone  

E-Print Network [OSTI]

Click Here for Full Article Impact of airborne Doppler wind lidar profiles on numerical simulations Regional Campaign (TPARC) field experiment in 2008, an airborne Doppler wind lidar (DWL) was onboard the U measurements on the numerical simulation of Typhoon Nuri (2008) in its formation phase. With an advanced

Pu, Zhaoxia

54

An initial assessment of the Robust And Compact Hybrid Environmental Lidar (RACHEL)  

E-Print Network [OSTI]

the greatest source of uncertainty in global climate models [1]. Their rapid variability in both time and space lidar techniques, the extinction and backscat- ter coefficients of an aerosol can be measured simul the assembly of a high-density, automated lidar network is impractical, despite the sig- nificant science gains

Oxford, University of

55

A new cloud and aerosol layer detection method based on micropulse lidar measurements  

E-Print Network [OSTI]

A new cloud and aerosol layer detection method based on micropulse lidar measurements Chuanfeng algorithm to detect aerosols and clouds based on micropulse lidar measurements. A semidiscretization is then introduced. Combined with empirical threshold values, we determine if the signal waves indicate clouds

Li, Zhanqing

56

3D Turbulence Measurements Using Three Synchronous Wind Lidars: Validation against Sonic Anemometry  

Science Journals Connector (OSTI)

This paper presents a technique to measure the time series of the three components of the wind vector at a point in space from synchronous measurements of three scanning Doppler wind lidars. Knowing the position of each lidar on the ground and the ...

Fernando Carbajo Fuertes; Giacomo Valerio Iungo; Fernando Porté-Agel

2014-07-01T23:59:59.000Z

57

First Verification Test and Wake Measurement Results Using a SHIP-LIDAR System  

Science Journals Connector (OSTI)

Abstract Measuring wind offshore in deep water depths will be a future challenge. Where the sea bed foundation installation for fixed meteorological masts is impossible, floating systems tend to be a sophisticated solution. In addition to the use of moored lidar- buoy systems, ship-lidar systems are an alternative solution for a number of different applications. In this paper we describe general aspects of motion influences on lidar measurements as well as two motion-correction methods for motion-influenced lidar measurements. The implementation of the ship-lidar system and different scanning modes will be presented. First measurements were carried out as part of the EERA-DTOC project. Hence a verification of one of the two correction algorithms as well as first results from wake measurements behind the Alpha Ventus offshore wind farm will be shown. This comprises distinct wind speed wake losses and an increasing turbulence intensity in a distance of approximately 2 km behind the wind farm.

G. Wolken-Möhlmann; J. Gottschall; B. Lange

2014-01-01T23:59:59.000Z

58

Lidar-based Research and Innovation at DTU Wind Energy – a Review  

Science Journals Connector (OSTI)

As wind turbines during the past decade have increased in size so have the challenges met by the atmospheric boundary-layer meteorologists and the wind energy society to measure and characterize the huge-volume wind fields surpassing and driving them. At the DTU Wind Energy test site "Østerild" for huge wind turbines, the hub-height of a recently installed 8 MW Vestas V164 turbine soars 143 meters up above the ground, and its rotor of amazing 164 meters in diameter make the turbine tips flicker 225 meters into the sky. Following the revolution in photonics-based telecommunication at the turn of the Millennium new fibre-based wind lidar technologies emerged and DTU Wind Energy, at that time embedded within Rise National Laboratory, began in collaboration with researchers from wind lidar companies to measure remote sensed wind profiles and turbulence structures within the atmospheric boundary layer with the emerging, at that time new, all-fibre-based 1.55 ? coherent detection wind lidars. Today, ten years later, DTU Wind Energy routinely deploys ground-based vertical profilers instead of met masts for high-precision measurements of mean wind profiles and turbulence profiles. At the departments test site "Høvsøre" DTU Wind Energy also routinely calibrate and accredit wind lidar manufactures wind lidars. Meanwhile however, new methodologies for power curve assessment based on ground-based and nacelle based lidars have also emerged. For improving the turbines power curve assessments and for advancing their control with feed-forward wind measurements experience has also been gained with wind lidars installed on turbine nacelles and integrated into the turbines rotating spinners. A new mobile research infrastructure WindScanner.dk has also emerged at DTU Wind Energy. Wind and turbulence fields are today scanned from sets of three simultaneously in space and time synchronized scanning lidars. One set consists of three fast scanning continuous-wave based wind lidars (short-range system), and another consisting of three synchronized pulsed wind lidar systems (long-range system). Today, wind lidar profilers and WindScanners are routinely deployed and operated during field tests and measurement campaigns. Lidars have been installed and operated from ground, on offshore platforms, and also as scanning lidars integrated in operating turbines. As a result, wind profiles and also detailed 3D scanning of wind and turbulence fields have been achieved: 1) of the free wind aloft, 2) over complex terrain, 3) at coastal ranges with land-sea interfaces, 4) offshore, 5) in turbine inflow induction zone, and 6) of the complex and turbulent flow fields in the wakes inside wind parks.

T Mikkelsen

2014-01-01T23:59:59.000Z

59

Using CO2 Lidar for Standoff Detection of a Perfluorocarbon Tracer in Air  

SciTech Connect (OSTI)

The Tag, Track and Location System Program (TTL) is investigating the use of PFTs as tracers for tagging and tracking items of interest or fallen soldiers. In order for the tagging and tracking to be valuable there must be a location system that can detect the PFTs. This report details the development of an infrared lidar platform for standoff detection of PFTs released into the air from a tagged object or person. Furthering work performed using a table top lidar system in an indoor environment; a mobile mini lidar platform was assembled using an existing Raman lidar platform, a grating tunable CO{sub 2} IR laser, Judson HgCdTe detector and miscellaneous folding optics and electronics. The lidar achieved {approx}200 ppb-m sensitivity in laboratory and indoor testing and was then successfully demonstrated at an outdoor test. The lidar system was able to detect PFTs released into a vehicle from a distance of 100 meters. In its final, fully optimized configuration the lidar was capable of repeatedly detecting PFTs in the air released from tagged vehicles. Responses were immediate and clear. This report details the results of a proof-of-concept demonstration for standoff detection of a perfluorocarbon tracer (PFT) using infrared lidar. The project is part of the Tag, Track and Location System Program and was performed under a contract with Tracer Detection Technology Corp. with funding from the Office of Naval Research. A lidar capable of detecting PFT releases at distance was assembled by modifying an existing Raman lidar platform by incorporating a grating tunable CO{sub 2} IR laser, Judson HgCdTe detector and miscellaneous folding optics and electronics. The lidar achieved {approx}200 ppb-m sensitivity in laboratory and indoor testing and was successfully demonstrated at an outdoor test. The demonstration test (scripted by the sponsor) consisted of three parked cars, two of which were tagged with the PFT. The cars were located 70 (closest) to 100 meters (farthest) from the lidar (the lidar beam path was limited by site constraints and was {approx}100 meters). When one door of each of the cars was opened (sequentially), the lidar was clearly able to determine which vehicles had been tagged and which one was not. The lidar is probably capable of greater than 0.5 kilometer standoff distances based on the extreme amount of signal return achieved (so much that the system had to be de-tuned). The BNL lidar system, while optimized to the extent possible with available parts and budget, was not as sensitive as it could be. Steps to improve the lidar are detailed in this report and include using a better laser system (for more stable power output), dual wavelengths (to improve the sensitivity and allow common mode noise reduction and to allow the use of the lidar in a scanning configuration), heterodyning (for range resolved PFT detection) and an off-axis optical configuration (for improved near field sensitivity).

Heiser,J.H.; Smith, S.; Sedlacek, A.

2008-02-06T23:59:59.000Z

60

Complex-optical-field lidar system for range and vector velocity measurement  

E-Print Network [OSTI]

Complex-optical-field lidar system for range and vector velocity measurement Shuang Gao,1,2 Maurice O’Sullivan,3 and Rongqing Hui2,* 1Department of Electronic Engineering and Information Science, University of Science and Technology of China... lidar system based on the measurement of complex optical field is demonstrated for the first time. An electro-optic in- phase/quadrature (I/Q) modulator is used in the lidar transmitter to realize carrier-suppressed complex optical field modulation...

Gao, Shuang; Sullivan, Maurice O.; Hui, Rongqing

2012-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

LiDAR At Twenty-Nine Palms Area (Page, Et Al., 2010) | Open Energy  

Open Energy Info (EERE)

Twenty-Nine Palms Area (Page, Et Al., 2010) Twenty-Nine Palms Area (Page, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: LiDAR At Twenty-Nine Palms Geothermal Area (Page, Et Al., 2010) Exploration Activity Details Location Twenty-Nine Palms Geothermal Area Exploration Technique LiDAR Activity Date Usefulness useful DOE-funding Unknown Notes Primary LiDAR application to this project was Airborne Laser Swath Mapping (ALSM). This particular application was used to gather data over a specific land area then used to create a Digital Elevation Model (DEM) with a resolution of approximately 1m in the horizontal direction and 10cm in the vertical direction. The LiDAR data gathered for MCAGCC was analyzed in conjunction with other data, such as aerial photography and field

62

Algorithms and Software Tools for Extracting Coastal Morphological Information from Airborne LiDAR Data  

E-Print Network [OSTI]

coastal forms and processes. This research aims at developing algorithms for automatically extracting coastal morphological information from LiDAR data. The primary methods developed by this research include automated algorithms for beach profile feature...

Gao, Yige

2010-07-14T23:59:59.000Z

63

SciTech Connect: Field Test Results from Lidar Measured Yaw Control...  

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

This bias could be caused by a number of issues such as: poor calibration, electromagnetic interference, rotor wake, or other effects. With a lidar mounted on the nacelle, a...

64

Fully automatic calibration of LIDAR and video streams from a vehicle  

E-Print Network [OSTI]

This work describes a fully automatic technique to calibrate a geometric mapping between lidar and video feeds on a mobile ground-based platform. This data association is a crucial first step for any multi-modal scene ...

Bileschi, Stanley M.

65

E-Print Network 3.0 - absorption lidar sensitivity Sample Search...  

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

has been modified in recent years (McGee et al., 1991, 1993,20 1995). A Xe... . The NASA God- dard Space Flight Center (GSFC) mobile lidar system was deployed at the Observa-...

66

Studying Clouds and Aerosols with Lidar Depolarization Ratio and Backscatter Relationships  

E-Print Network [OSTI]

comparison of mineral dust aerosol retrievals from two instruments, MODIS and CALIPSO lidar. And, we implement and evaluate a new mineral dust detection algorithm based on the analysis of thin dust radiative signature. In comparison, three commonly used...

Cho, Hyoun-Myoung

2012-02-14T23:59:59.000Z

67

Narrowband sodium lidar for the measurements of mesopause region temperature and wind  

Science Journals Connector (OSTI)

We report here a narrowband high-spectral resolution sodium temperature/wind lidar recently developed at the University of Science and Technology of China (USTC) in Hefei, China...

Li, Tao; Fang, Xin; Liu, Wei; Gu, Sheng-Yang; Dou, Xiankang

2012-01-01T23:59:59.000Z

68

LiDAR At Dixie Valley Geothermal Area (Helton, Et Al., 2011)...  

Open Energy Info (EERE)

Fallon Geothermal Exploration Project. Notes High resolution LiDAR and 1:12000 scale low-sun-angle aerial photography was used in southern Dixie Valley to help better characterize...

69

Digital Outcrop Models: Applications of Terrestrial Scanning Lidar Technology in Stratigraphic Modeling  

Science Journals Connector (OSTI)

...passive sensors. All but the most extreme atmospheric and lighting conditions will have little effect on terrestrial lidar...Changes, Cycles, and Reservoirs on Carbonate Platforms in Greenhouse and Ice-house Worlds: SEPM, Short Course no. 35, 147...

J.A. Bellian; C. Kerans; D.C. Jennette

70

2.5 MHz Line-Width High-Energy, 2µm Coherent Wind Lidar Transmitter  

Science Journals Connector (OSTI)

The design of a diode pumped, injection seeded MOPA with a transform limited line width and diffraction limited beam quality is presented. This lidar transmitter produces over 300mJ...

Petros, Mulugeta; Yu, Jirong; Trieu, Bo; Bai, Yingxin; Petzar, Paul; Singh, Upendra N; Reithmaier, Karl

71

Development of All-fiber Coherent Doppler Lidar to Measure Atmosphere Wind Speed  

Science Journals Connector (OSTI)

An all-fiber pulsed coherent Doppler lidar is developed to measure wind profiles. The maximum horizontal and vertical range for wind speed is 4.2km and 2km with speed accuracy of...

Liu, Jiqiao; Chen, Weibiao; Zhu, Xiaopeng

72

NESTED HIGH RESOLUTION SIMULATION AND LIDAR VALIDATION OF A LAND BREEZE CIRCULATION  

E-Print Network [OSTI]

NESTED HIGH RESOLUTION SIMULATION AND LIDAR VALIDATION OF A LAND BREEZE CIRCULATION by GIJS DE BOER local forcing. A wide range of scales is simulated using the nesting capability of the University

Eloranta, Edwin W.

73

A Portable Airborne Scanning Lidar System for Ocean and Coastal Applications  

Science Journals Connector (OSTI)

A portable compact airborne scanning lidar system based on the Riegl LMS-Q240i has been developed and its functionality demonstrated for oceanographic and coastal measurements. Differential GPS (DGPS) and an inertial navigation system are ...

Benjamin D. Reineman; Luc Lenain; David Castel; W. Kendall Melville

2009-12-01T23:59:59.000Z

74

Lidar-Observed Stress Vectors and Veer in the Atmospheric Boundary Layer  

Science Journals Connector (OSTI)

This study demonstrates that a pulsed wind lidar is a reliable instrument for measuring angles between horizontal vectors of significance in the atmospheric boundary layer. Three different angles are considered: the wind turning, the angle between ...

Jacob Berg; Jakob Mann; Edward G. Patton

2013-09-01T23:59:59.000Z

75

A Simple Model for Correcting Sodar and Lidar Errors in Complex Terrain  

Science Journals Connector (OSTI)

Ground-based sensing of wind profiles by sodars and lidars is becoming the standard for wind energy and other applications. However, there remain difficulties in complex terrain since the instruments sense wind components in spatially separated ...

Stuart Bradley

2012-12-01T23:59:59.000Z

76

Development of a lidar polarimeter technique of measuring suspended solids in water  

E-Print Network [OSTI]

DEVELOPMENT OF A LIDAR POLARIMETER TECHNIQUE OF MEASURING SUSPENDED SOLIDS IN WATER A Thesis by DAVID W. PRESLEY Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE May 1980 Major Subject; Electrical Engineering DEVELOPMENT OF A LIDAR POLARIMETER TECHNIQUE OF MEASURING SUSPENDED SOLIDS IN WATER A Thesis by DAVID W, PRESLEY Approved as to sty1e and content by: Chairman of Committee H d of Department...

Presley, David W

1980-01-01T23:59:59.000Z

77

Spaceborne profiling of atmospheric temperature and particle extinction with pure rotational Raman lidar and of relative humidity in combination with differential absorption lidar: performance simulations  

SciTech Connect (OSTI)

The performance of a spaceborne temperature lidar based on the pure rotational Raman (RR) technique in the UV has been simulated. Results show that such a system deployed onboard a low-Earth-orbit satellite would provide global-scale clear-sky temperature measurements in the troposphere and lower stratosphere with precisions that satisfy World Meteorological Organization (WMO) threshold observational requirements for numerical weather prediction and climate research applications. Furthermore, nighttime temperature measurements would still be within the WMO threshold observational requirements in the presence of several cloud structures. The performance of aerosol extinction measurements from space, which can be carried out simultaneously with temperature measurements by RR lidar, is also assessed. Furthermore, we discuss simulations of relative humidity measurements from space obtained from RR temperature measurements and water-vapor data measured with the differential absorption lidar (DIAL) technique.

Di Girolamo, Paolo; Behrendt, Andreas; Wulfmeyer, Volker

2006-04-10T23:59:59.000Z

78

Ozone Measurements at Geesthacht (53.4° N, 10.4° E) with an Advanced Raman Lidar  

Science Journals Connector (OSTI)

An advanced Raman lidar, which measures ozone, water vapor, aerosol backscatter, and extinction profiles simoultaneously and independently, has been in routine operation at Geesthacht since February 1995. Results...

Marcus Seiwazi; Jens Reichardt…

1997-01-01T23:59:59.000Z

79

Deriving a Framework for Estimating Individual Tree Measurements with Lidar for Use in the TAMBEETLE Southern Pine Beetle Infestation Growth Model  

E-Print Network [OSTI]

. TAMBEETLE was used to compare spot growth between a lidar-derived forest map and a forest map generated by TAMBEETLE, based on sample plot characteristics. The lidar-derived forest performed comparably to the TAMBEETLE generated forest. Using lidar to map...

Stukey, Jared D.

2011-02-22T23:59:59.000Z

80

Raman lidar profiling of water vapor and aerosols over the ARM SGP Site  

SciTech Connect (OSTI)

The authors have developed and implemented automated algorithms to retrieve profiles of water vapor mixing ratio, aerosol backscattering, and aerosol extinction from Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) Raman Lidar data acquired during both daytime and nighttime operations. The Raman lidar sytem is unique in that it is turnkey, automated system designed for unattended, around-the-clock profiling of water vapor and aerosols. These Raman lidar profiles are important for determining the clear-sky radiative flux, as well as for validating the retrieval algorithms associated with satellite sensors. Accurate, high spatial and temporal resolution profiles of water vapor are also required for assimilation into mesoscale models to improve weather forecasts. The authors have also developed and implemented routines to simultaneously retrieve profiles of relative humidity. These routines utilize the water vapor mixing ratio profiles derived from the Raman lidar measurements together with temperature profiles derived from a physical retrieval algorithm that uses data from a collocated Atmospheric Emitted Radiance Interferometer (AERI) and the Geostationary Operational Environmental Satellite (GOES). These aerosol and water vapor profiles (Raman lidar) and temperature profiles (AERI+GOES) have been combined into a single product that takes advantage of both active and passive remote sensors to characterize the clear sky atmospheric state above the CART site.

Ferrare, R.A.

2000-01-09T23:59:59.000Z

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

RAMAN LIDAR PROFILING OF WATER VAPOR AND AEROSOLS OVER THE ARM SGP SITE.  

SciTech Connect (OSTI)

We have developed and implemented automated algorithms to retrieve profiles of water vapor mixing ratio, aerosol backscattering, and aerosol extinction from Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) Raman Lidar data acquired during both daytime and nighttime operations. This Raman lidar system is unique in that it is turnkey, automated system designed for unattended, around-the-clock profiling of water vapor and aerosols (Goldsmith et al., 1998). These Raman lidar profiles are important for determining the clear-sky radiative flux, as well as for validating the retrieval algorithms associated with satellite sensors. Accurate, high spatial and temporal resolution profiles of water vapor are also required for assimilation into mesoscale models to improve weather forecasts. We have also developed and implemented routines to simultaneously retrieve profiles of relative humidity. These routines utilize the water vapor mixing ratio profiles derived from the Raman lidar measurements together with temperature profiles derived from a physical retrieval algorithm that uses data from a collocated Atmospheric Emitted Radiance Interferometer (AERI) and the Geostationary Operational Environmental Satellite (GOES) (Feltz et al., 1998; Turner et al., 1999). These aerosol and water vapor profiles (Raman lidar) and temperature profiles (AERI+GOES) have been combined into a single product that takes advantage of both active and passive remote sensors to characterize the clear sky atmospheric state above the CART site.

FERRARE,R.A.

2000-01-09T23:59:59.000Z

82

Progress Report on Frequency - Modulated Differential Absorption Lidar  

SciTech Connect (OSTI)

Modeling done at Pacific Northwest National Laboratory (PNNL) in FY2000 predicted improved sensitivity for remote chemical detection by differential absorption lidar (DIAL) if frequency-modulated (FM) lasers were used. This improved sensitivity results from faster averaging away of speckle noise and the recently developed quantum cascade (QC) lasers offer the first practical method for implementing this approach in the molecular fingerprint region of the infrared. To validate this model prediction, a simple laboratory bench FM-DIAL system was designed, assembled, tested, and laboratory-scale experiments were carried out during FY2001. Preliminary results of the FM DIAL experiments confirm the speckle averaging advantages predicted by the models. In addition, experiments were performed to explore the use of hybrid QC - CO2 lasers for achieving sufficient frequency-modulated laser power to enable field experiments at longer ranges (up to one kilometer or so). This approach will allow model validation at realistic ranges much sooner than would be possible if one had to first develop master oscillator - power amplifier systems utilizing only QC devices. Amplification of a QC laser with a CO2 laser was observed in the first hybrid laser experiments, but the low gain and narrow linewidth of the CO2 laser available for these experiments prevented production of a high-power FM laser beam.

Cannon, Bret D.; Harper, Warren W.; Myers, Tanya L.; Taubman, Matthew S.; Williams, Richard M.; Schultz, John F.

2001-12-15T23:59:59.000Z

83

Sensing Hadley cell with space-borne lidar  

Science Journals Connector (OSTI)

Abstract Some recent studies reported expansion of the Earth?s tropical regime in the past few decades. The poleward expansion of the Hadley cell is a strong indication of the warming of the globe. The extent of Hadley cell also has very important implications to the climate of dry subtropical regions because of the prevalence of precipitation in the deep tropical belt. Determination of the Hadley circulation especially its extent has great significance for monitoring global climate change and for the subtropical climate studies. Although many methods have been developed in recent years, reliable measurement of the extent of Hadley cell is still an issue in climate studies. This letter shows that the extent of the Hadley cell could reliably be estimated by measuring the height of the uppermost super-thin clouds in the troposphere with space-borne lidar. Through consecutive multi-year measurements of the height of the uppermost super-thin clouds, a good estimation of the expansion of the Hadley cell could be obtained.

Wenbo Sun; Bing Lin; Rosemary R. Baize; Gorden Videen; Yongxiang Hu

2014-01-01T23:59:59.000Z

84

LiDAR At Twenty-Nine Palms Area (Sabin, Et Al., 2010) | Open Energy  

Open Energy Info (EERE)

Nine Palms Area (Sabin, Et Al., 2010) Nine Palms Area (Sabin, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: LiDAR At Twenty-Nine Palms Geothermal Area (Sabin, Et Al., 2010) Exploration Activity Details Location Twenty-Nine Palms Geothermal Area Exploration Technique LiDAR Activity Date Usefulness useful DOE-funding Unknown Notes As previously mentioned, a deep slim hole is scheduled to be drilled in the Camp Wilson area of MCAGCC in June, 2010. The location of this hole is entirely driven by favorable structures as interpreted from LiDAR data and results of the Seabee TGH drilling program completed in early 2009. Details of the MCAGCC work are available in another section of this volume. References Andrew Sabin, S. Bjornstad, M. Lazaro, D. Meade, C. Page, S. Alm, A.

85

Structural Analysis of Southern Dixie Valley using LiDAR and Low-Sun-Angle  

Open Energy Info (EERE)

Structural Analysis of Southern Dixie Valley using LiDAR and Low-Sun-Angle Structural Analysis of Southern Dixie Valley using LiDAR and Low-Sun-Angle Aerial Photography, NAS Fallon Geothermal Exploration Project, Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Structural Analysis of Southern Dixie Valley using LiDAR and Low-Sun-Angle Aerial Photography, NAS Fallon Geothermal Exploration Project, Dixie Valley, Nevada Abstract The goal of this study is to map and characterize Quaternary faults in southern Dixie Valley for the Department of the Navy Geothermal Program Office's NAS Fallon Geothermal Exploration Project. We will use this information to better characterize the regional structure and geothermal resource potential of the area,with a focus on determining the structural

86

A Comparison of Cirrus Cloud Visible Optical Depth Derived from Lidar  

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

Comparison of Cirrus Cloud Visible Optical Depth Derived from Lidar Comparison of Cirrus Cloud Visible Optical Depth Derived from Lidar Lo, Chaomei Pacific Northwest National Laboratory Comstock, Jennifer Pacific Northwest National Laboratory Flynn, Connor Pacific Northwest National Laboratory Category: Cloud Properties Optically thin clouds (e.g. optical depth < 3) can have a significant impact on radiative heating in the atmosphere, particularly in the cold upper troposphere. Currently, there is no value-added product (VAP) in the Atmospheric Radiation Measurement (ARM) program archive that produces thin cloud optical depth, particularly at the Tropical Western Pacific and North Slope of Alaska sites. A VAP is under development to obtain the cirrus cloud visible optical depth from the MPLNOR (Micro Pulse Lidar Normalized

87

A Four-Year Lidar–Sun Photometer Aerosol Study at São Paulo, Brazil  

Science Journals Connector (OSTI)

A backscattering lidar system, the first of this kind in Brazil, has been used to provide the vertical profile of the aerosol backscatter coefficient at 532 nm up to an altitude of 4–6 km above sea level (ASL), in a suburban area in the city of ...

Eduardo Landulfo; Alexandros Papayannis; Ani Sobral Torres; Sandro Toshio Uehara; Lucila Maria Viola Pozzetti; Caio Alencar de Matos; Patricia Sawamura; Walter Morinobu Nakaema; Wellington de Jesus

2008-08-01T23:59:59.000Z

88

A geometric framework for channel network extraction from lidar: Nonlinear diffusion and geodesic paths  

E-Print Network [OSTI]

A geometric framework for channel network extraction from lidar: Nonlinear diffusion and geodesic extraction. Following this preprocessing, channels are defined as curves of minimal effort, or geodesics and geodesic paths, J. Geophys. Res., 115, F01002, doi:10.1029/2009JF001254. 1. Introduction [2] The detection

Foufoula-Georgiou, Efi

89

AUTOMATED MODELING OF 3D BUILDING ROOFS USING IMAGE AND LIDAR DATA  

E-Print Network [OSTI]

AUTOMATED MODELING OF 3D BUILDING ROOFS USING IMAGE AND LIDAR DATA N. Demir* , E. Baltsavias, Detection, 3D Modelling ABSTRACT: In this work, an automated approach for 3D building roof modelling on the 3D building roof modelling. Buildings have a critical role for 3D city models, decision support

Schindler, Konrad

90

Measuring forest structure and biomass in New England forest stands using Echidna ground-based lidar  

E-Print Network [OSTI]

Measuring forest structure and biomass in New England forest stands using Echidna ground Accepted 12 March 2010 Available online 14 May 2011 Keywords: Ground-based lidar Forest structure Biomass biomass with very good accuracy in six New England hardwood and conifer forest stands. Comparing forest

Ni-Meister, Wenge

91

Master thesis: "Validation of wake-simulation models based on long-range lidar measurements."  

E-Print Network [OSTI]

Figure 1: Simulation of lidar measurements in the wake of a wind turbine using a LES generated wind field mapping and wake/vortex detection in several research projects and airport applications. At ForWind resolution wind data from the inflow and wake of two multi-megawatt wind energy converters. Possible

Peinke, Joachim

92

LIDAR measurements of wind turbine wake dyn_amics and comparison with an engineering model  

E-Print Network [OSTI]

LIDAR measurements of wind turbine wake dyn_amics and comparison with an engineering model 1 dynamics, lIre performed at four diameters behind a 95 kW wind turbine. The wake 111eaeasurement technique allows esti111ation of qUClsiinstantancou~ two dimensional wind fields in an area

93

USING LIDAR TO MEASURE PERFLUOROCARBON TRACERS FOR THE VERIFICATION AND MONITORING  

E-Print Network [OSTI]

USING LIDAR TO MEASURE PERFLUOROCARBON TRACERS FOR THE VERIFICATION AND MONITORING OF CAP AND COVER to detect PMCH (perfluoromethylcyclohexane, one of a group of PFTs used at BNL). Laboratory measurements then measured down to 1 ppb-m. These results are very promising and show great potential for monitoring

94

Fusion of 3D-LIDAR and camera data for scene parsing  

Science Journals Connector (OSTI)

Fusion of information gathered from multiple sources is essential to build a comprehensive situation picture for autonomous ground vehicles. In this paper, an approach which performs scene parsing and data fusion for a 3D-LIDAR scanner (Velodyne HDL-64E) ... Keywords: Camera, Fuzzy logic, MRF, Object detection, RGBD, Scene parsing, Temporal fusion, Velodyne scanner

Gangqiang Zhao; Xuhong Xiao; Junsong Yuan; Gee Wah Ng

2014-01-01T23:59:59.000Z

95

Biomass and Bioenergy 31 (2007) 646655 Estimating biomass of individual pine trees using airborne lidar  

E-Print Network [OSTI]

Biomass and Bioenergy 31 (2007) 646­655 Estimating biomass of individual pine trees using airborne biomass and bio-energy feedstocks. The overall goal of this study was to develop a method for assessing aboveground biomass and component biomass for individual trees using airborne lidar data in forest settings

96

Using LIDAR in Highway Rock Cuts Norbert H. Maerz, Ph. D., P. Eng,  

E-Print Network [OSTI]

the data needed to begin the process of modeling the rock raveling process. INTRODUCTION LIDAR damage, injury, and even death. Highways impeded by even small spills of rock material by blasting techniques to facilitate the highway construction. A constant danger to the motoring public

Maerz, Norbert H.

97

LIDAR-BASED VEHICLE TRACKING FOR STOPPING DISTANCE MEASUREMENT AT INTERSECTIONS  

E-Print Network [OSTI]

] are currently the most commonly used system to detect vehicle and measure velocities at a fixed site of a Light Detection and Ranging (LIDAR) sensor to accurately track a vehicle as it passes through to traffic laws. Driver warning systems can increase vehicle safety, especially near accident

Brennan, Sean

98

Linking imaging spectroscopy and LiDAR with floristic composition and forest structure in Panama  

Science Journals Connector (OSTI)

Abstract Landsat and Shuttle Radar Topography Mission (SRTM) imagery have recently been used to identify broad-scale floristic units in Neotropical rain forests, corresponding to geological formations and their edaphic properties. Little is known about the structural and functional variation between these floristic units, however, and Landsat and SRTM data lack the spectral and spatial resolution needed to provide this information. Imaging spectroscopy and LiDAR (Light Detection and Ranging) have been used to measure canopy structure and function in a variety of ecosystems, but the ability of these technologies to measure differences between compositionally-distinct but otherwise uniform tropical forest types remains unknown. We combined 16 tree inventories from central Panama with imaging spectroscopy and LiDAR elevation data from the Carnegie Airborne Observatory to test our ability to identify patterns in plant species composition, and to measure the spectral and structural differences between adjacent closed-canopy tropical forest types. We found that variations in spectroscopic imagery and LiDAR data were strong predictors of spatial turnover in plant species composition. We also found that these compositional, chemical, and structural patterns corresponded to underlying geological formations and their geomorphological properties. We conclude that imaging spectroscopy and LiDAR data can be used to interpret patterns identified in lower resolution sensors, to provide new information on forest function and structure, and to identify underlying determinants of these patterns.

Mark A. Higgins; Gregory P. Asner; Roberta E. Martin; David E. Knapp; Christopher Anderson; Ty Kennedy-Bowdoin; Roni Saenz; Antonio Aguilar; S. Joseph Wright

2014-01-01T23:59:59.000Z

99

Improved forecasts of extreme weather events by future space borne Doppler wind lidar  

E-Print Network [OSTI]

sensitive areas. To answer these questions simulation experiments with state-of-the-art numerical weather prediction (NWP) models have proved great value to test future meteorological observing systems a prioriImproved forecasts of extreme weather events by future space borne Doppler wind lidar Gert

Marseille, Gert-Jan

100

Master Thesis: Dual-Doppler technique applied to scanning lidars for the characterization of  

E-Print Network [OSTI]

and wind turbine wakes in large wind farms offshore. Wind Energy, 12(5):431­444, 2009. [2] Brian Hirth, D of single wind turbines for the validation or tuning of wake models [1]. Recent full-field campaigns showed-lidar system was developed and installed at the offshore wind farm "alpha ventus". This system includes three

Peinke, Joachim

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

Metal uorescence lidar (light detection and ranging) and the middle atmosphere  

E-Print Network [OSTI]

lidar takes advantage of the naturally occurring sodium atoms between 80 and 110 km above sea level (the though it is exposed to constant solar radiation. The hope of explaining a region strongly coupled as the `-pause' of the layer below them (see ®gure 1). Radiative absorption and emission are dominating eects

102

Lidars in Wind Energy Jakob Mann, Ferhat Bingl, Torben Mikkelsen, Ioannis Antoniou, Mike  

E-Print Network [OSTI]

Lidars in Wind Energy Jakob Mann, Ferhat Bingöl, Torben Mikkelsen, Ioannis Antoniou, Mike Courtney, Gunner Larsen, Ebba Dellwik Juan Jose Trujillo* and Hans E. Jørgensen Wind Energy Department Risø of the presentation · Introduction to wind energy · Accurate profiles of the mean wind speed · Wakes behind turbines

103

Simultaneous radar and lidar cloud measurements at Geesthacht (53.5°N, 10.5°E)  

Science Journals Connector (OSTI)

Comparisons have been made of the cloud profiles obtained from the backscatter signals of a 95-GHz radar and a 720-nm lidar system between 23 May and 4 November 1997 at Geesthacht (53°24? N, 10°26? E). Although the wavelengths of the two systems differ by a factor of 4 000, remarkably similar data have been obtained in many cases. There are differences, though. Small droplets do not interact significantly with the radar pulses, and hence can only be seen by the lidar due to their strong scattering in the UV/VIS. On the other hand, attenuation of the lidar pulses by underlying clouds and gas absorbers makes upper cloud regions and especially cloud top heights better detectable for the radar. Rain and snow falling out of a cloud and evaporating on the way down cannot be distinguished from the cloud region by the radar, but a fast downward component in the Doppler spectrum is indicative of precipitation in or under a cloud. For quantitative cloud studies collocated radar-lidar systems considerably add to the experimental capabilities of each of the two systems alone.

C. Weitkamp; H. Flint; W. Lahmann; F.A. Theopold; O. Danne; M. Quante; E. Raschke

1999-01-01T23:59:59.000Z

104

Estimating forest structural characteristics with airborne lidar scanning and a near-real time profiling laser systems  

E-Print Network [OSTI]

LiDAR (Light Detection and Ranging) directly measures canopy vertical structures, and provides an effective remote sensing solution to accurate and spatiallyexplicit mapping of forest characteristics, such as canopy height and Leaf Area Index...

Zhao, Kaiguang

2009-05-15T23:59:59.000Z

105

Use of LiDAR to estimate stand characteristics for thinning operations in young Douglas-fir plantations  

Science Journals Connector (OSTI)

Light Detection and Ranging (LiDAR) has been successfully used to describe a wide range of forest metrics at local, regional and national scales. However, little research has used this technology in young Doug...

Michael S Watt; Andrew Meredith; Pete Watt…

2013-12-01T23:59:59.000Z

106

Method to determine and adjust the alignment of the transmitter and receiver fields of view of a LIDAR system  

DOE Patents [OSTI]

A method to determine the alignment of the transmitter and receiver fields of view of a light detection and ranging (LIDAR) system. This method can be employed to determine the far-field intensity distribution of the transmitter beam, as well as the variations in transmitted laser beam pointing as a function of time, temperature, or other environmental variables that may affect the co-alignment of the LIDAR system components. In order to achieve proper alignment of the transmitter and receiver optical systems when a LIDAR system is being used in the field, this method employs a laser-beam-position-sensing detector as an integral part of the receiver optics of the LIDAR system.

Schmitt, Randal L. (Tijeras, NM); Henson, Tammy D. (Albuquerque, NM); Krumel, Leslie J. (Cedar Crest, NM); Hargis, Jr., Philip J. (Albuquerque, NM)

2006-06-20T23:59:59.000Z

107

Field Test Results of Using a Nacelle-Mounted Lidar for Improving Wind Energy Capture by Reducing Yaw Misalignment (Presentation)  

SciTech Connect (OSTI)

Presented at the Nordic Wind Power Conference on November 5, 2014. This presentation describes field-test campaigns performed at the National Wind Technology Center in which lidar technology was used to improve the yaw alignment of the Controls Advanced Research Turbine (CART) 2 and CART3 wind turbines. The campaigns demonstrated that whether by learning a correction function to the nacelle vane, or by controlling yaw directly with the lidar signal, a significant improvement in power capture was demonstrated.

Fleming, P.; Scholbrock, A.; Wright, A.

2014-11-01T23:59:59.000Z

108

HiRes camera and LIDAR ranging system for the Clementine mission  

SciTech Connect (OSTI)

Lawrence Livermore National Laboratory developed a space-qualified High Resolution (HiRes) imaging LIDAR (Light Detection And Ranging) system for use on the DoD Clementine mission. The Clementine mission provided more than 1.7 million images of the moon, earth, and stars, including the first ever complete systematic surface mapping of the moon from the ultra-violet to near-infrared spectral regions. This article describes the Clementine HiRes/LIDAR system, discusses design goals and preliminary estimates of on-orbit performance, and summarizes lessons learned in building and using the sensor. The LIDAR receiver system consists of a High Resolution (HiRes) imaging channel which incorporates an intensified multi-spectral visible camera combined with a Laser ranging channel which uses an avalanche photo-diode for laser pulse detection and timing. The receiver was bore sighted to a light-weight McDonnell-Douglas diode-pumped ND:YAG laser transmitter that emmitted 1.06 {micro}m wavelength pulses of 200 mJ/pulse and 10 ns pulse-width, The LIDAR receiver uses a common F/9.5 Cassegrain telescope assembly. The optical path of the telescope is split using a color-separating beamsplitter. The imaging channel incorporates a filter wheel assembly which spectrally selects the light which is imaged onto a custom 12 mm gated image intensifier fiber-optically-coupled into a 384 x 276 pixel frame transfer CCD FPA. The image intensifier was spectrally sensitive over the 0.4 to 0.8 {micro}m wavelength region. The six-position filter wheel contained 4 narrow spectral filters, one broadband and one blocking filter. At periselene (400 km) the HiRes/LIDAR imaged a 2.8 km swath width at 20-meter resolution. The LIDAR function detected differential signal return with a 40-meter range accuracy, with a maximum range capability of 640 km, limited by the bit counter in the range return counting clock.

Ledebuhr, A.G.; Kordas, J.F.; Lewis, I.T. [and others

1995-04-01T23:59:59.000Z

109

ARM - Field Campaign - NASA Coordinated Airborne CO2 Lidar Flight Test  

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

govCampaignsNASA Coordinated Airborne CO2 Lidar Flight Test Campaign govCampaignsNASA Coordinated Airborne CO2 Lidar Flight Test Campaign Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : NASA Coordinated Airborne CO2 Lidar Flight Test Campaign 2009.07.27 - 2009.08.07 Lead Scientist : Edward Browell For data sets, see below. Description This airborne field test campaign was designed to obtain a coordinated set of remote CO2 Laser Absorption Spectrometer (LAS) measurements using the NASA Langley/ITT 1.57-micron Continuous-Wave (CW) LAS operating from the NASA Langley UC-12 aircraft; the NASA Goddard 1.57-micron pulsed LAS operating from the NASA Glenn Lear-25 aircraft; and the NASA Jet Propulsion Laboratory 2.0-micron CW-coherent LAS operating from a contracted Twin Otter aircraft. These remote LAS CO2 column measurements were compared with

110

Macrophysical Properties of Tropical Cirrus Clouds from the CALIPSO Satellite and from Ground-based Micropulse and Raman Lidars  

SciTech Connect (OSTI)

Lidar observations of cirrus cloud macrophysical properties over the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) program Darwin, Australia site are compared from the Cloud-Aerosol Lidar and In- frared Pathfinder Satellite Observation (CALIPSO) satellite, the ground-based ARM micropulse lidar (MPL), and the ARM Raman lidar (RL). Comparisons are made using the subset of profiles where the lidar beam is not fully attenuated. Daytime measurements using the RL are shown to be relatively unaffected by the solar background and are therefore suited for checking the validity of diurnal cycles. RL and CALIPSO cloud fraction profiles show good agreement while the MPL detects significantly less cirrus, particularly during the daytime. Both MPL and CALIPSO observations show that cirrus clouds occur less frequently during the day than at night at all altitudes. In contrast, the RL diurnal cy- cle is significantly different than zero only below about 11 km; where it is the opposite sign (i.e. more clouds during the daytime). For cirrus geomet- rical thickness, the MPL and CALIPSO observations agree well and both datasets have signficantly thinner clouds during the daytime than the RL. From the examination of hourly MPL and RL cirrus cloud thickness and through the application of daytime detection limits to all CALIPSO data we find that the decreased MPL and CALIPSO cloud thickness during the daytime is very likely a result of increased daytime noise. This study highlights the vast im- provement the RL provides (compared to the MPL) in the ARM program's ability to observe tropical cirrus clouds as well as a valuable ground-based lidar dataset for the validation of CALIPSO observations and to help im- prove our understanding of tropical cirrus clouds.

Thorsen, Tyler J.; Fu, Qiang; Comstock, Jennifer M.; Sivaraman, Chitra; Vaughan, Mark A.; Winker, D.; Turner, David D.

2013-08-27T23:59:59.000Z

111

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

SciTech Connect (OSTI)

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

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

1998-03-01T23:59:59.000Z

112

Modeling LIDAR Detection of Biological Aerosols to Determine Optimum Implementation Strategy  

SciTech Connect (OSTI)

This report summarizes work performed for a larger multi-laboratory project named the Background Interferent Measurement and Standards project. While originally tasked to develop algorithms to optimize biological warfare agent detection using UV fluorescence LIDAR, the current uncertainties in the reported fluorescence profiles and cross sections the development of any meaningful models. It was decided that a better approach would be to model the wavelength-dependent elastic backscattering from a number of ambient background aerosol types, and compare this with that generated from representative sporulated and vegetative bacterial systems. Calculations in this report show that a 266, 355, 532 and 1064 nm elastic backscatter LIDAR experiment will allow an operator to immediately recognize when sulfate, VOC-based or road dust (silicate) aerosols are approaching, independent of humidity changes. It will be more difficult to distinguish soot aerosols from biological aerosols, or vegetative bacteria from sporulated bacteria. In these latter cases, the elastic scattering data will most likely have to be combined with UV fluorescence data to enable a more robust categorization.

Sheen, David M.; Aker, Pam M.

2007-09-19T23:59:59.000Z

113

Lidar Investigation of Tropical Nocturnal Boundary Layer Aerosols and Cloud Macrophysics  

SciTech Connect (OSTI)

Observational evidence of two-way association between nocturnal boundary layer aerosols and cloud macrophysical properties under different meteorological conditions is reported in this paper. The study has been conducted during 2008-09 employing a high space-time resolution polarimetric micro-pulse lidar over a tropical urban station in India. Firstly, the study highlights the crucial role of boundary layer aerosols and background meteorology on the formation and structure of low-level stratiform clouds in the backdrop of different atmospheric stability conditions. Turbulent mixing induced by the wind shear at the station, which is associated with a complex terrain, is found to play a pivotal role in the formation and structural evolution of nocturnal boundary layer clouds. Secondly, it is shown that the trapping of energy in the form of outgoing terrestrial radiation by the overlying low-level clouds can enhance the aerosol mixing height associated with the nocturnal boundary layer. To substantiate this, the long-wave heating associated with cloud capping has been quantitatively estimated in an indirect way by employing an Advanced Research Weather Research and Forecasting (WRF-ARW) model version 2.2 developed by National Center for Atmospheric Research (NCAR), Colorado, USA, and supplementary data sets; and differentiated against other heating mechanisms. The present investigation as well establishes the potential of lidar remote-sensing technique in exploring some of the intriguing aspects of the cloud-environment relationship.

Manoj, M. G.; Devara, PC S.; Taraphdar, Sourav

2013-10-01T23:59:59.000Z

114

A comparison of cloud top heights computed from airborne lidar and MAS radiance data using CO2 slicing  

E-Print Network [OSTI]

A comparison of cloud top heights computed from airborne lidar and MAS radiance data using CO2 in assessing the accuracy of the CO2-slicing cloud height algorithm. Infrared measurements of upwelling which included various single- layer and multilayer cloud conditions. Overall, the CO2-slicing method

Sheridan, Jennifer

115

SIMULTANEOUS AND COMMON-VOLUME LIDAR OBSERVATIONS OF THE MESOSPHERIC FE AND NA LAYERS AT BOULDER (40N, 105W)  

E-Print Network [OSTI]

inputs can reproduce some large-scale characteristics but are challenged in simulating small- scale the general structures more precisely as well as simulating the challenging small scale features. In Aug. The Fe Boltzmann temperature lidar was under upgrading and validating at Boulder before its deployment

Chu, Xinzhao

116

Modeling lidar waveforms with time-dependent stochastic radiative transfer theory for remote estimations of forest structure  

E-Print Network [OSTI]

with field data from two conifer forest stands (southern old jack pine and southern old black spruce estimations of forest structure Svetlana Y. Kotchenova,1 Nikolay V. Shabanov,1 Yuri Knyazikhin,1 Anthony B (lidars) have demonstrated a potential for accurate remote sensing of forest biomass and structure

Goldberg, Bennett

117

Field Test Results from Lidar Measured Yaw Control for Improved Yaw Alignment with the NREL Controls Advanced Research Turbine: Preprint  

SciTech Connect (OSTI)

This paper describes field tests of a light detection and ranging (lidar) device placed forward looking on the nacelle of a wind turbine and used as a wind direction measurement to directly control the yaw position of a wind turbine. Conventionally, a wind turbine controls its yaw direction using a nacelle-mounted wind vane. If there is a bias in the measurement from the nacelle-mounted wind vane, a reduction in power production will be observed. This bias could be caused by a number of issues such as: poor calibration, electromagnetic interference, rotor wake, or other effects. With a lidar mounted on the nacelle, a measurement of the wind could be made upstream of the wind turbine where the wind is not being influenced by the rotor's wake or induction zone. Field tests were conducted with the lidar measured yaw system and the nacelle wind vane measured yaw system. Results show that a lidar can be used to effectively measure the yaw error of the wind turbine, and for this experiment, they also showed an improvement in power capture because of reduced yaw misalignment when compared to the nacelle wind vane measured yaw system.

Scholbrock, A.; Fleming, P.; Wright, A.; Slinger, C.; Medley, J.; Harris, M.

2014-12-01T23:59:59.000Z

118

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

119

A Method for Estimating the Turbulent Kinetic Energy Dissipation Rate from a Vertically Pointing Doppler Lidar, and Independent Evaluation from Balloon-Borne In Situ Measurements  

Science Journals Connector (OSTI)

A method of estimating dissipation rates from a vertically pointing Doppler lidar with high temporal and spatial resolution has been evaluated by comparison with independent measurements derived from a balloon-borne sonic anemometer. This method ...

Ewan J. O’Connor; Anthony J. Illingworth; Ian M. Brooks; Christopher D. Westbrook; Robin J. Hogan; Fay Davies; Barbara J. Brooks

2010-10-01T23:59:59.000Z

120

Posters Scanning Raman Lidar Measurements of Atmospheric Water Vapor and Aerosols  

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

5 5 Posters Scanning Raman Lidar Measurements of Atmospheric Water Vapor and Aerosols R. A. Ferrare and K. D. Evans (a) Hughes STX Corporation Lanham, Maryland S. H. Melfi and D. N. Whiteman NASA/Goddard Space Flight Center Greenbelt, Maryland The principal objective of the Department of Energy's (DOE) Atmospheric Radiation Measurement Program (ARM) is to develop a better understanding of the atmospheric radiative balance in order to improve the parameterization of radiative processes in general circulation models (GCMs) which are used to study climate change. Meeting this objective requires detailed measurements of both water vapor and aerosols since these atmospheric constituents affect the radiation balance directly, through scattering and absorption of solar and

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

A digital map of the high center (HC) and low center (LC) polygon boundaries delineated from high resolution LiDAR data for Barrow, Alaska  

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

This dataset represent a map of the high center (HC) and low center (LC) polygon boundaries delineated from high resolution LiDAR data for the arctic coastal plain at Barrow, Alaska. The polygon troughs are considered as the surface expression of the ice-wedges. The troughs are in lower elevations than the interior polygon. The trough widths were initially identified from LiDAR data, and the boundary between two polygons assumed to be located along the lowest elevations on trough widths between them.

Gangodagamage, Chandana; Wullschleger, Stan

122

A digital map of the high center (HC) and low center (LC) polygon boundaries delineated from high resolution LiDAR data for Barrow, Alaska  

SciTech Connect (OSTI)

This dataset represent a map of the high center (HC) and low center (LC) polygon boundaries delineated from high resolution LiDAR data for the arctic coastal plain at Barrow, Alaska. The polygon troughs are considered as the surface expression of the ice-wedges. The troughs are in lower elevations than the interior polygon. The trough widths were initially identified from LiDAR data, and the boundary between two polygons assumed to be located along the lowest elevations on trough widths between them.

Gangodagamage, Chandana; Wullschleger, Stan

2014-07-03T23:59:59.000Z

123

Q. J. R. Meteorol. Soc. (2003), 129, pp. 30793098 doi: 10.1256/qj. Simulation of Wind Profiles from a Space-borne Doppler Wind Lidar  

E-Print Network [OSTI]

Q. J. R. Meteorol. Soc. (2003), 129, pp. 3079­3098 doi: 10.1256/qj. Simulation of Wind Profiles on numerical weather prediction and climate processes. This paper describes the simulation of Aeolus LOS wind from a Space-borne Doppler Wind Lidar By G.J. MARSEILLE and A. STOFFELEN KNMI, The Netherlands

Stoffelen, Ad

124

Generated using version 3.0 of the official AMS LATEX template A remotely-operated lidar for aerosol, temperature, and water  

E-Print Network [OSTI]

Generated using version 3.0 of the official AMS LATEX template A remotely-operated lidar for aerosol, temperature, and water vapor profiling in the High Arctic. G. J. Nott, T. J. Duck, J. G. Doyle, M. E. W. Coffin, C. Perro, C. P. Thackray, and J. R. Drummond Department of Physics and Atmospheric

Duck, Thomas J.

125

Proceedings of EARSeL-SIG-Workshop LIDAR, Dresden/FRG, June 16 17, 2000 EARSeL eProceedings No. 1 77  

E-Print Network [OSTI]

77 MARINE CODE FOR MODELLING RANGE RESOLVED OCEANOGRAPHIC LIDAR FLUOROSENSOR MEASUREMENTS R. Barbini1 environment. The laser radiation interaction processes of diffusion, re-emission, refraction and absorption in the frame of the Italian Research Pro- gram for Antarctica (PNRA), has been designed to remotely detect

Oldenburg, Carl von Ossietzky Universität

126

Cloud fraction, liquid and ice water contents derived from long-term radar, lidar, and microwave radiometer data are systematically compared to models to quantify and  

E-Print Network [OSTI]

Cloud fraction, liquid and ice water contents derived from long-term radar, lidar, and microwave a systematic evaluation of clouds in forecast models. Clouds and their associated microphysical processes for end users of weather forecasts, who may be interested not only in cloud cover, but in other variables

Hogan, Robin

127

Evaluation of Cloud-Phase Retrieval Methods for SEVIRI on Meteosat-8 Using Ground-Based Lidar and Cloud Radar Data  

E-Print Network [OSTI]

Evaluation of Cloud-Phase Retrieval Methods for SEVIRI on Meteosat-8 Using Ground-Based Lidar and Cloud Radar Data ERWIN L. A. WOLTERS, ROBERT A. ROEBELING, AND ARNOUT J. FEIJT Royal Netherlands 2007) ABSTRACT Three cloud-phase determination algorithms from passive satellite imagers are explored

Stoffelen, Ad

128

A Critical Review of the Database Acquired for the Long-Term Surveillance of the Middle Atmosphere by the French Rayleigh Lidars  

Science Journals Connector (OSTI)

The database obtained by Rayleigh lidars over the south of France is now used for monitoring the middle-atmosphere structure and to validate satellite data. For these reasons it is crucial to ensure the quality of the data. The purpose of this ...

P. Keckhut; A. Hauchecorne; M. L. Chanin

1993-12-01T23:59:59.000Z

129

A comparison of automated land cover/use classification methods for a Texas bottomland hardwood system using lidar, spot-5, and ancillary data  

E-Print Network [OSTI]

decisions affecting these disappearing systems. SPOT-5 imagery from 2005 was combined with Light Detection and Ranging (LiDAR) data from 2006 and several ancillary datasets to map a portion of the bottomland hardwood system found in the Sulphur River Basin...

Vernon, Zachary Isaac

2009-05-15T23:59:59.000Z

130

Features of point clouds synthesized from multi-view ALOS/PRISM data and comparisons with LiDAR data in forested areas  

Science Journals Connector (OSTI)

Abstract LiDAR waveform data from airborne LiDAR scanners (ALS) e.g. the Land Vegetation and Ice Sensor (LVIS) have been successfully used for estimation of forest height and biomass at local scales and have become the preferred remote sensing dataset. However, regional and global applications are limited by the cost of the airborne LiDAR data acquisition and there are no available spaceborne LiDAR systems. Some researchers have demonstrated the potential for mapping forest height using aerial or spaceborne stereo imagery with very high spatial resolutions. For stereo images with global coverage but coarse resolution new analysis methods need to be used. Unlike most research based on digital surface models, this study concentrated on analyzing the features of point cloud data generated from stereo imagery. The synthesizing of point cloud data from multi-view stereo imagery increased the point density of the data. The point cloud data over forested areas were analyzed and compared to small footprint LiDAR data and large-footprint LiDAR waveform data. The results showed that the synthesized point cloud data from ALOS/PRISM triplets produce vertical distributions similar to LiDAR data and detected the vertical structure of sparse and non-closed forests at 30 m resolution. For dense forest canopies, the canopy could be captured but the ground surface could not be seen, so surface elevations from other sources would be needed to calculate the height of the canopy. A canopy height map with 30 m pixels was produced by subtracting national elevation dataset (NED) from the averaged elevation of synthesized point clouds, which exhibited spatial features of roads, forest edges and patches. The linear regression showed that the canopy height map had a good correlation with RH50 of LVIS data with a slope of 1.04 and R2 of 0.74 indicating that the canopy height derived from PRISM triplets can be used to estimate forest biomass at 30 m resolution.

Wenjian Ni; Kenneth Jon Ranson; Zhiyu Zhang; Guoqing Sun

2014-01-01T23:59:59.000Z

131

LIDAR Wind Speed Measurement Analysis and Feed-Forward Blade Pitch Control for Load Mitigation in Wind Turbines: January 2010--January 2011  

SciTech Connect (OSTI)

This report examines the accuracy of measurements that rely on Doppler LIDAR systems to determine their applicability to wind turbine feed-forward control systems and discusses feed-forward control system designs that use preview wind measurements. Light Detection and Ranging (LIDAR) systems are able to measure the speed of incoming wind before it interacts with a wind turbine rotor. These preview wind measurements can be used in feed-forward control systems designed to reduce turbine loads. However, the degree to which such preview-based control techniques can reduce loads by reacting to turbulence depends on how accurately the incoming wind field can be measured. The first half of this report examines the accuracy of different measurement scenarios that rely on coherent continuous-wave or pulsed Doppler LIDAR systems to determine their applicability to feed-forward control. In particular, the impacts of measurement range and angular offset from the wind direction are studied for various wind conditions. A realistic case involving a scanning LIDAR unit mounted in the spinner of a wind turbine is studied in depth with emphasis on choices for scan radius and preview distance. The effects of turbulence parameters on measurement accuracy are studied as well. Continuous-wave and pulsed LIDAR models based on typical commercially available units were used in the studies present in this report. The second half of this report discusses feed-forward control system designs that use preview wind measurements. Combined feedback/feed-forward blade pitch control is compared to industry standard feedback control when simulated in realistic turbulent above-rated winds. The feed-forward controllers are designed to reduce fatigue loads, increasing turbine lifetime and therefore reducing the cost of energy. Three feed-forward designs are studied: non-causal series expansion, Preview Control, and optimized FIR filter. The input to the feed-forward controller is a measurement of incoming wind speeds that could be provided by LIDAR. Non-causal series expansion and Preview Control methods reduce blade root loads but increase tower bending in simulation results. The optimized FIR filter reduces loads overall, keeps pitch rates low, and maintains rotor speed regulation and power capture, while using imperfect wind measurements provided by the spinning continuous-wave LIDAR model.

Dunne, F.; Simley, E.; Pao, L.Y.

2011-10-01T23:59:59.000Z

132

DOE/SC-ARM/TR-100 Raman Lidar Profiles Best Estimate Value-Added Product Technical Report  

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

0 0 Raman Lidar Profiles Best Estimate Value-Added Product Technical Report R Newsom January 2012 DISCLAIMER This report was prepared as an account of work sponsored by the U.S. Government. Neither the United States nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the U.S. Government or any agency thereof. The views and

133

Development and Deployment of a Compact Eye-safe Scanning Differential Absorption Lidar (DIAL) for Spatial Mapping of Carbon Dioxide for MVA at Geologic Carbon Sequestration Sites  

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

Deployment of a Deployment of a Compact Eye-safe Scanning Differential Absorption Lidar (DIAL) for Spatial Mapping of Carbon Dioxide for MVA at Geologic Carbon Sequestration Sites Description Through its core research and development program administered by the National Energy Technology Laboratory (NETL), the U.S. Department of Energy (DOE) emphasizes monitoring, verification, and accounting (MVA), as well as computer simulation, of possible carbon dioxide (CO 2 ) leakage at CO 2

134

All Sky Camera, LIDAR and Electric Field Meter: auxiliary instruments for the ASTRI SST-2M prototype  

E-Print Network [OSTI]

ASTRI SST-2M is the end-to-end prototype telescope of the Italian National Institute of Astro- physics, INAF, designed to investigate the 10-100 TeV band in the framework of the Cherenkov Telescope Array, CTA. The ASTRI SST-2M telescope has been installed in Italy in September 2014, at the INAF ob- serving station located at Serra La Nave on Mount Etna. The telescope is foreseen to be completed and fully operative in spring 2015 including auxiliary instrumentation needed to support both operations and data anal- ysis. In this contribution we present the current status of a sub-set of the auxiliary instruments that are being used at the Serra La Nave site, namely an All Sky Camera, an Electric Field Meter and a Raman Lidar devoted, together with further instrumentation, to the monitoring of the atmospheric and environmental conditions. The data analysis techniques under development for these instruments could be applied at the CTA sites, where similar auxiliary instrumentation will be installed.

Leto, Giuseppe; Bellassai, Giancarlo; Bruno, Pietro; Maccarone, Maria Concetta; Martinetti, Eugenio

2015-01-01T23:59:59.000Z

135

Low-noise detector and amplifier design for 100 ns direct detection CO{sub 2} LIDAR receiver  

SciTech Connect (OSTI)

The development and test results of a prototype detector/amplifier design for a background limited, pulsed 100 ns, 10--100 kHz repetition rate LIDAR/DIAL receiver system are presented. Design objectives include near-matched filter detection of received pulse amplitude and round trip time-of-flight, and the elimination of excess correlated detector/amplifier noise for optimal pulse averaging. A novel pole-zero cancellation amplifier, coupled with a state-of-the-art SBRC (Santa Barbara Research Center) infrared detector was implemented to meet design objectives. The pole-zero cancellation amplifier utilizes a tunable, pseudo-matched filter technique to match the width of the laser pulse to the shaping time of the filter for optimal SNR performance. Low frequency correlated noise, (l/f and drift noise) is rejected through a second order high gain feedback loop. The amplifier also employs an active detector bias stage minimizing detector drift. Experimental results will be provided that demonstrate near-background limited, 100 ns pulse detection performance given a 8.5--11.5 {micro}m (300 K B.B.) radiant background, with the total noise floor spectrally white for optimal pulse averaging efficiency.

Cafferty, M.M.; Cooke, B.J.; Laubscher, B.E.; Olivas, N.L.; Fuller, K.

1997-06-01T23:59:59.000Z

136

Detection of internally mixed Asian dust with air pollution aerosols using a polarization optical particle counter and a polarization-sensitive two-wavelength lidar  

Science Journals Connector (OSTI)

Abstract East Asia is a unique region where mineral dust (Asian dust) sources are located near urban and industrial areas. Asian dust is often mixed with air pollution aerosols during transportation. It is important to understand the mixing states of Asian dust and other aerosols, because the effects on the environment and human health differ depending on the mixing state. We studied the mixing states of Asian dust using a polarization particle counter (POPC) that measures the forward scattering and the two polarization components of backscattering for single particles and a polarization-sensitive (532 nm) two-wavelength (1064 nm and 532 nm) lidar. We conducted the simultaneous observations using the POPC and the lidar in Seoul from March to December 2013 and captured the characteristics of pure Asian dust and internally mixed polluted Asian dust. POPC measurements indicated that the density of large particles was lower in polluted Asian dust that transported slowly over the polluted areas than in pure Asian dust that transported quickly from the dust source region. Moreover, the backscattering depolarization ratio was smaller for all particle sizes in polluted dust. The optical characteristics measured using the lidar were consistent with the POPC measurements. The backscattering color ratio of polluted dust was comparable to that of pure dust, but the depolarization ratio was lower for polluted dust. In addition, coarse non-spherical particles (Asian dust) almost always existed in the background, and the depolarization ratio had seasonal variation with a lower depolarization ratio in the summer. These results suggest background Asian dust particles are internally mixed in the summer.

Nobuo Sugimoto; Tomoaki Nishizawa; Atsushi Shimizu; Ichiro Matsui; Hiroshi Kobayashi

2015-01-01T23:59:59.000Z

137

Wildfire hazard in the home ignition zone: An object-oriented analysis integrating LiDAR and VHR satellite imagery  

Science Journals Connector (OSTI)

Abstract Many spatially explicit studies of wildfire hazard focus on the wildland–urban interface (WUI), the area where natural vegetation intersects or mixes with structures. However, research suggests that the characteristics of a small portion of the WUI, the home ignition zone, largely determine potential for ignition from wildfire. The home ignition zone (HIZ) is the area that includes a structure and its surroundings out to 30–60 m. The primary goal of this study is to develop metrics to characterize land cover, burned area, and topography in the HIZ. Pre-fire metrics (i.e. related to land cover and topography) help identify relatively hazardous individual \\{HIZes\\} or neighborhoods of HIZes. Post-fire metrics can be used to assess the burned area across land cover types, inside and outside the HIZ. To calculate the HIZ metrics, multiple data sources (e.g. high resolution 8-band multispectral imagery and LiDAR point clouds) were integrated using an object-oriented image analysis. The setting for the study is the Fourmile Canyon area west of Boulder, Colorado, a data-rich area which experienced a large, destructive wildfire in September 2010. The land cover, burn area, and topography metrics were successfully and accurately calculated and then pre-fire metrics were combined into a simple HIZ hazard index. HIZ characteristics broadly mirror the characteristics of the WUI within the fire perimeter as a whole, though the HIZ on average contains more bare and less forest land, has more widely spaced canopies, and experienced less burning during the fire. The HIZ hazard index values were spatially heterogeneous, but with several distinct high and low hazard clusters. The methods described in this study, paired with in situ data collection, can be applied to other areas to inform hazard mitigation plans.

Rutherford V. Platt

2014-01-01T23:59:59.000Z

138

Raman Lidar Receives Improvements  

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

central facility is receiving upgrades to its environmental controls. This ground-based remote sensing instrument uses a laser to measure vertical profiles of water vapor mixing...

139

Combination of Lidar Elevations, Bathymetric Data, and Urban Infrastructure in a Sub-Grid Model for Predicting Inundation in New York City during Hurricane Sandy  

E-Print Network [OSTI]

We present the geospatial methods in conjunction with results of a newly developed storm surge and sub-grid inundation model which was applied in New York City during Hurricane Sandy in 2012. Sub-grid modeling takes a novel approach for partial wetting and drying within grid cells, eschewing the conventional hydrodynamic modeling method by nesting a sub-grid containing high-resolution lidar topography and fine scale bathymetry within each computational grid cell. In doing so, the sub-grid modeling method is heavily dependent on building and street configuration provided by the DEM. The results of spatial comparisons between the sub-grid model and FEMA's maximum inundation extents in New York City yielded an unparalleled absolute mean distance difference of 38m and an average of 75% areal spatial match. An in-depth error analysis reveals that the modeled extent contour is well correlated with the FEMA extent contour in most areas, except in several distinct areas where differences in special features cause sig...

Loftis, Jon Derek; Hamilton, Stuart E; Forrest, David R

2014-01-01T23:59:59.000Z

140

Thin and thick cloud top height retrieval algorithm with the Infrared Camera and LIDAR of the JEM-EUSO Space Mission  

E-Print Network [OSTI]

The origin of cosmic rays have remained a mistery for more than a century. JEM-EUSO is a pioneer space-based telescope that will be located at the International Space Station (ISS) and its aim is to detect Ultra High Energy Cosmic Rays (UHECR) and Extremely High Energy Cosmic Rays (EHECR) by observing the atmosphere. Unlike ground-based telescopes, JEM-EUSO will observe from upwards, and therefore, for a properly UHECR reconstruction under cloudy conditions, a key element of JEM-EUSO is an Atmospheric Monitoring System (AMS). This AMS consists of a space qualified bi-spectral Infrared Camera, that will provide the cloud coverage and cloud top height in the JEM-EUSO Field of View (FoV) and a LIDAR, that will measure the atmospheric optical depth in the direction it has been shot. In this paper we will explain the effects of clouds for the determination of the UHECR arrival direction. Moreover, since the cloud top height retrieval is crucial to analyze the UHECR and EHECR events under cloudy conditions, the ret...

Sáez-Cano, G; del Peral, L; Neronov, A; Wada, S; Frías, M D Rodríguez

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

Microtopographic characterization of ice-wedge polygon landscape in Barrow, Alaska: a digital map of troughs, rims, centers derived from high resolution (0.25 m) LiDAR data  

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

The dataset represents microtopographic characterization of the ice-wedge polygon landscape in Barrow, Alaska. Three microtopographic features are delineated using 0.25 m high resolution digital elevation dataset derived from LiDAR. The troughs, rims, and centers are the three categories in this classification scheme. The polygon troughs are the surface expression of the ice-wedges that are in lower elevations than the interior polygon. The elevated shoulders of the polygon interior immediately adjacent to the polygon troughs are the polygon rims for the low center polygons. In case of high center polygons, these features are the topographic highs. In this classification scheme, both topographic highs and rims are considered as polygon rims. The next version of the dataset will include more refined classification scheme including separate classes for rims ad topographic highs. The interior part of the polygon just adjacent to the polygon rims are the polygon centers.

Gangodagamage, Chandana; Wullschleger, Stan

142

Microtopographic characterization of ice-wedge polygon landscape in Barrow, Alaska: a digital map of troughs, rims, centers derived from high resolution (0.25 m) LiDAR data  

SciTech Connect (OSTI)

The dataset represents microtopographic characterization of the ice-wedge polygon landscape in Barrow, Alaska. Three microtopographic features are delineated using 0.25 m high resolution digital elevation dataset derived from LiDAR. The troughs, rims, and centers are the three categories in this classification scheme. The polygon troughs are the surface expression of the ice-wedges that are in lower elevations than the interior polygon. The elevated shoulders of the polygon interior immediately adjacent to the polygon troughs are the polygon rims for the low center polygons. In case of high center polygons, these features are the topographic highs. In this classification scheme, both topographic highs and rims are considered as polygon rims. The next version of the dataset will include more refined classification scheme including separate classes for rims ad topographic highs. The interior part of the polygon just adjacent to the polygon rims are the polygon centers.

Gangodagamage, Chandana; Wullschleger, Stan

2014-07-03T23:59:59.000Z

143

Development and Deployment of a Compact Eye-Safe Scanning Differential absorption Lidar (DIAL) for Spatial Mapping of Carbon Dioxide for Monitoring/Verification/Accounting at Geologic Sequestration Sites  

SciTech Connect (OSTI)

A scanning differential absorption lidar (DIAL) instrument for monitoring carbon dioxide has been developed. The laser transmitter uses two tunable discrete mode laser diodes (DMLD) operating in the continuous wave (cw) mode with one locked to the online absorption wavelength and the other operating at the offline wavelength. Two in-line fiber optic switches are used to switch between online and offline operation. After the fiber optic switch, an acousto- optic modulator (AOM) is used to generate a pulse train used to injection seed an erbium doped fiber amplifier (EDFA) to produce eye-safe laser pulses with maximum pulse energies of 66 {micro}J, a pulse repetition frequency of 15 kHz, and an operating wavelength of 1.571 {micro}m. The DIAL receiver uses a 28 cm diameter Schmidt-Cassegrain telescope to collect that backscattered light, which is then monitored using a photo-multiplier tube (PMT) module operating in the photon counting mode. The DIAL instrument has been operated from a laboratory environment on the campus of Montana State University, at the Zero Emission Research Technology (ZERT) field site located in the agricultural research area on the western end of the Montana State University campus, and at the Big Sky Carbon Sequestration Partnership site located in north-central Montana. DIAL data has been collected and profiles have been validated using a co-located Licor LI-820 Gas Analyzer point sensor.

Repasky, Kevin

2014-03-31T23:59:59.000Z

144

An Assessment of MultiAngle Imaging SpectroRadiometer (MISR) Stereo-Derived Cloud Top Heights and cloud top winds using ground-based radar, lidar, and microwave radiometers  

SciTech Connect (OSTI)

Clouds are of tremendous importance to climate because of their direct radiative effects and because of their role in atmospheric dynamics and the hydrological cycle. The value of satellite imagery in monitoring cloud properties on a global basis can hardly be understated. One cloud property that satellites are in an advantageous position to monitor is cloud top height. Cloud top height retrievals are especially important for MISR because the derived height field is used to co-register the measured radiances. In this presentation we show the results of an ongoing comparison between ground-based millimeter-wave cloud radar and lidar measurements of cloud top and MISR stereo-derived cloud top height. This comparison is based on data from three radar systems located in the U.S Southern Great Plains (Lamont, Oklahoma), the Tropical Western Pacific (Nauru Island) and the North Slope of Alaska (Barrow, Alaska). These radars are operated as part of the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) program. The MISR stereo height algorithm is performing largely as expected for most optically thick clouds. As with many satellite retrievals, the stereo-height retrieval has difficulty with optically thin clouds or ice clouds with little optical contrast near cloud top.

Marchand, Roger T.; Ackerman, Thomas P.; Moroney, C.

2007-03-17T23:59:59.000Z

145

Sandia Multispectral Airborne Lidar for UAV Deployment  

SciTech Connect (OSTI)

Sandia National Laboratories has initiated the development of an airborne system for W laser remote sensing measurements. System applications include the detection of effluents associated with the proliferation of weapons of mass destruction and the detection of biological weapon aerosols. This paper discusses the status of the conceptual design development and plans for both the airborne payload (pointing and tracking, laser transmitter, and telescope receiver) and the Altus unmanned aerospace vehicle platform. Hardware design constraints necessary to maintain system weight, power, and volume limitations of the flight platform are identified.

Daniels, J.W.; Hargis,Jr. P.J.; Henson, T.D.; Jordan, J.D.; Lang, A.R.; Schmitt, R.L.

1998-10-23T23:59:59.000Z

146

Simplified Homodyne Detection for FM Chirped Lidar  

E-Print Network [OSTI]

is small compared to the phase fluctuations caused by wind and temperature flux. Doppler Shift and Resolution Another effect on wave propagation is the phenomenon of Doppler shift. The Doppler shift of a return signal is proportional to the target.............................................................................................15 Propagation Loss and Photon Limited Range................................................15 Atmospheric Loss and Distortion....................................................................18 Doppler Shift and Resolution...

Adany, Peter

2007-12-14T23:59:59.000Z

147

ARM - PI Product - Finnish Meteorological Institute Doppler Lidar  

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

backscatter coefficients beta signal to noise ratio signal Horizontal wind u, v, w, windspeed, winddirection Backscatter depolarization ratio depolarization Instruments...

148

Simulated performance of an airborne lidar wind shear detection system  

E-Print Network [OSTI]

) . . . . 78 53. COq aerosol backseat ter variations II (radial wind velocity) . . 54. COs pulse euergy variations outside atmospheric boundary layer (SXK . ) 79 79 55. 57. COs pulse energy variat, ion outside atmospheric bound ar y layer ( velocity... microburst/pulse energy variation (SNRN) . . 86 67. COz and Ho: YAG wet microburst/pulse energy variation (velocity error) 68. COz and Ho:YAG wet microburst/pulse energy variation (radial wind velocity) 69. COs uniform rain rate variat, ions 87 87 70...

Griffith, Kenneth Scott

2012-06-07T23:59:59.000Z

149

Final report of the Mexico City 1991 lidar measurements campaign  

SciTech Connect (OSTI)

Over the last two decades, Mexico City, like many large industrial and populous urban areas, has developed a serious air pollution problem, especially during the winter months when there are frequent temperature inversions and weak winds. The deterioration in air quality is the result of several factors. The basin within which Mexico City lies is Mexico`s center of political, administrative and economic activity, generating 34% of the cross domestic product and 42% of the industrial revenue, and supporting a population which is rapidly approaching the 20 minion mark. The basin is surrounded by mountains on three sides which inhibit rapid dispersal of pollutants. Emissions from the transportation fleet (more than 3 million vehicles) are one of the primary pollution sources, and are mostly uncontrolled. Catalytic converters are just now being introduced into the fleet. The Mexico City Air Quality Research Initiative is an international collaborative project between the Los Alamos National Laboratory and the Mexican Petroleum Institute dedicated to the investigation of the air quality problem in Mexico City. The main objective of the project is to identify and assess the cost and benefits of major options being proposed to improve the air quality.

Quick, C.R. Jr.; Archuleta, F.L.; Hof, D.E.; Karl, R.R. Jr.; Tiee, J.J.; Eichinger, W.E.; Holtkamp, D.B.; Tellier, L.L.

1993-09-01T23:59:59.000Z

150

www.cerf-jcr.org Benthic Classifications Using Bathymetric LIDAR  

E-Print Network [OSTI]

to enhance the SVM classification performance. The assessment of the contribution of geostatistics No. 62, 86­98. West Palm Beach (Florida), ISSN 0749-0208. The scope of this research is to assess. Analysis of the underwater camera stations allowed clustering of the stations into groups on the basis

Long, Bernard

151

Automatic Construction of Building Footprints from Airborne LIDAR Data  

E-Print Network [OSTI]

energy demand, quality of life, urban population, and property taxes [1]. Accurate building footprint alternative for mea- Manuscript received June 27, 2005; revised February 23, 2006. This work was supported, and cars scanned by the laser beneath the aircraft. Compared to aerial photographs and satellite images

Chen, Shu-Ching

152

Lane estimation for autonomous vehicles using vision and LIDAR  

E-Print Network [OSTI]

Autonomous ground vehicles, or self-driving cars, require a high level of situational awareness in order to operate safely and eciently in real-world conditions. A system able to quickly and reliably estimate the location ...

Huang, Albert Shuyu

2010-01-01T23:59:59.000Z

153

Wind velocity measurements using a pulsed LIDAR system: first results  

E-Print Network [OSTI]

. A laser beam of 1.54 µm wavelength takes measurements of the wind speed in beamwise direction. To obtain the three-dimensinal wind vector, the beam is inclined by 30 from vertical direction and measurements 12345 t [s] vh[m/s] Figure 2. Segment of measured time series of the horizontal wind speed magnitude vh

Peinke, Joachim

154

A motor drive control system for the Lidar Polarimeter  

E-Print Network [OSTI]

and Quantitative Account Gear-Train Servo Error Types. IV. DC VARIABLE SPEED MOTOR DRIVE DESIGN CONSIDERATIONS AND RFALIZATION. Introduction. 27 29 30 30 34 34 Design Consideration. The DC Power Amplifier. System Operation. Scan System Alignment... and Quantitative Account Gear-Train Servo Error Types. IV. DC VARIABLE SPEED MOTOR DRIVE DESIGN CONSIDERATIONS AND RFALIZATION. Introduction. 27 29 30 30 34 34 Design Consideration. The DC Power Amplifier. System Operation. Scan System Alignment...

Leung, Waiming

2012-06-07T23:59:59.000Z

155

Simulation of Lidar Return Signals Associated with Water Clouds  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 7 Number distribution averaged phasematrices of water clouddroplets of different effective radii. . . . . . . . . . . . . . . . . . . . . . . . . 34 8 Simulated range corrected signals froma cloud with reff = 8.0?m and ?ext = 13.3/km when 100...(?in,?in,?sc,?sc) = L(?i2))P(?)L(?i1), (1.14) 8 where L(?) is for rotation operator for Stoke parameter (I,Q,U,V) [30]: L(?) = ? ?? ?? ?? ?? 1 0 0 0 0 cos2? sin2? 0 0 ?sin2? cos2? 0 0 0 0 1 ? ?? ?? ?? ?? . (1.15) where ? is an angle. i1 is the angle between the meridian...

Lu, Jianxu

2010-01-14T23:59:59.000Z

156

E-Print Network 3.0 - airborne mixtures part Sample Search Results  

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

GLAS Airborne lidar Biomass Height The use of lidar remote sensing for mapping the spatial distribution... and spatially coincident discrete-return airborne lidar data over...

157

Eddy-resolving Lidar Measurements and Numerical Simulations of the Convective Internal Boundary Layer  

E-Print Network [OSTI]

in speed. The vertical gradient of wind-speed decreases offshore because of strong vertical mixing caused correlation functions and winds derived from horizontal (PPI) and vertical (RHI) scans of the VIL during Lake.4 0.5 0.6 0.7 DOWNSTREAM WIND SPEEDS FROM RHI SCANS ON 13 JANUARY 1998 SPATIALLY RESOLVED 5-m WINDS

Eloranta, Edwin W.

158

Modeling conically scanning lidar error in complex terrain with WAsP  

E-Print Network [OSTI]

the vertical wind speed W changes linearly with the downwind position x. This could crudely mimic the flow over to be homogeneous in order to deduce the horizontal wind speed. However, in mountainous or complex terrain this assumption is not valid implying an erroneous wind speed. The magnitude of this error is measured

159

Estimates of North American summertime planetary boundary layer depths derived from space-borne lidar  

E-Print Network [OSTI]

), are sensitive to empirical parameters in addition to the diagnostic method chosen and verification by direct determines the PBL depth using the TKE (turbulent kinetic energy) method. This method identifies the PBL exchanges of energy, moisture, momentum, carbon, and pollutants between the surface and the atmosphere

Collett Jr., Jeffrey L.

160

Quantifying Surface Subsidence along US Highway 50, Reno County, KS using Terrestrial LiDAR  

E-Print Network [OSTI]

of the 1900's many oil wells were drilled. These wells tapped into the Hutchinson Salt Member which was coined as the "lost circulation zone" when drillers would pass through it due to its high solubility, low strength and contact with the drilling fluid... of the larger Wellington Formation which mainly consists of gray shales interbedded with argillaceous limestone and dolomite intervals in addition to the Hutchinson Salt. Above the Wellington Formation lies the Ninnescah Shale. The Ninnescah Shale is made up...

Herrs, Andrew J.

2010-04-23T23:59:59.000Z

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

Solar Energy Potential Analysis at Building Scale Using LiDAR and Satellite Data.  

E-Print Network [OSTI]

??The two main challenges of the twenty-first century are the scarcity of energy sources and global warming; trigged by the emission of greenhouse gases. In… (more)

Aguayo, Paula

2013-01-01T23:59:59.000Z

162

Assessing Available Woody Plant Biomass on Rangelands with Lidar and Multispectral Remote Sensing  

E-Print Network [OSTI]

products. Mesquite trees, a type of woody plant, are a proven source of bioenergy feedstock found on semi-arid lands. The overall objectives of this study were to develop algorithms for determining woody plant biomass on rangelands in Texas at plot...

Ku, Nian-Wei

2012-07-16T23:59:59.000Z

163

Multi-temporal Terrestrial Lidar for Estimating Individual Tree Dimensions and Biomass Change  

E-Print Network [OSTI]

Accurate measures of forest structural parameters are essential to forest inventory and growth models, managing wildfires, and modeling of carbon cycle. Terrestrial laser scanning (TLS) provides accurate understory information rapidly through non...

Srinivasan, Shruthi

2013-10-30T23:59:59.000Z

164

Modeling Plot-Level Biomass and Volume Using Airborne and Terrestrial Lidar Measurements  

E-Print Network [OSTI]

The United States Forest Service (USFS) Forest Inventory and Analysis (FIA) program provides a diverse selection of data used to assess the status of the nation’s forested areas using sample locations dispersed throughout the country. Airborne...

Sheridan, Ryan D.

2012-07-16T23:59:59.000Z

165

Errors for Space-Based Doppler Lidar Wind Measurements: Definition, Performance, and Verification  

Science Journals Connector (OSTI)

Verification of space-based wind measurements will be difficult because of the random variations of the atmospheric velocity field over the measurement volume. The definition of accuracy requires a definition of “truth.” For this work, truth is ...

Rod Frehlich

2001-11-01T23:59:59.000Z

166

2.1 RAMAN LIDAR PROFILING OF WATER VAPOR AND AEROSOLS OVER THE ARM SGP SITE  

E-Print Network [OSTI]

with satellite sensors. Accurate, high spatial and temporal resolution profiles of water vapor are also required+GOES) have been combined into a single product that takes advantage of both active and passive remote sensors with the use of narrowband (~0.4 nm bandpass) filters, reduces the background skylight and, therefore

167

Development of a national model of Pinus radiata stand volume from lidar metrics for New Zealand  

Science Journals Connector (OSTI)

Although environmental variables are established determinants for V, their inclusion did not significantly improve either model 1 or 2. Residual values for both models showed little apparent bias when plotted against stand-level ...

Pete Watt; MichaelS. Watt

2013-08-01T23:59:59.000Z

168

NEW REMOTELY-OPERATED RAMAN-MIE-RAYLEIGH LIDAR IN THE HIGH CANADIAN ARCTIC  

E-Print Network [OSTI]

operation and alignment, data col- lection, and safety systems are controlled with custom software. 2 revolve around atmospheric energy trans- fer through both radiative and dynamic processes. As contributors

Duck, Thomas J.

169

Perspective of a hydrographic LIDAR in space: Specifications and results of a simulation  

E-Print Network [OSTI]

Oldenburg, Germany* ABSTRACT Long-term surveillance of coastal zones like the German Bight with airborne chlorophyll a will be given in the following section. Ocean monitoring on basin-wide global scales

Oldenburg, Carl von Ossietzky Universität

170

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

Science Journals Connector (OSTI)

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

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

171

Volumetric Lidar Scanning of Wind Turbine Wakes under Convective and Neutral Atmospheric Stability Regimes  

Science Journals Connector (OSTI)

Optimization of a wind farm’s layout is a strategic task to reduce wake effects on downstream turbines, thus maximizing wind power harvesting. However, downstream evolution and recovery of each wind turbine wake are strongly affected by the ...

Giacomo Valerio Iungo; Fernando Porté-Agel

2014-10-01T23:59:59.000Z

172

Estimating the Wind Resource in Uttarakhand: Comparison of Dynamic Downscaling with Doppler Lidar Wind Measurements  

SciTech Connect (OSTI)

Previous estimates of the wind resources in Uttarakhand, India, suggest minimal wind resources in this region. To explore whether or not the complex terrain in fact provides localized regions of wind resource, the authors of this study employed a dynamic down scaling method with the Weather Research and Forecasting model, providing detailed estimates of winds at approximately 1 km resolution in the finest nested simulation.

Lundquist, J. K.; Pukayastha, A.; St. Martin, C.; Newsom, R.

2014-03-01T23:59:59.000Z

173

A lidar Perception Scheme for Intelligent Vehicle Julien Moras, Veronique Cherfaoui and Phillipe Bonnifait  

E-Print Network [OSTI]

space determination are key issues for driving assistance systems or autonomous vehicles. This paper Detection I. INTRODUCTION Autonomous vehicles are becoming a reality in urban areas for human transportation and track the moving objects [4], [5], [6], [7]. Usually, a detection and tracking system is developed

Paris-Sud XI, Université de

174

How lava flows: New insights from applications of lidar technologies to lava flow studies  

Science Journals Connector (OSTI)

...systems record the entire waveform of the energy pulse that is backscattered from the reflecting...on lahars from Popocatepetl Volcano, Mexico: Journal of Volcanology and Geothermal...reconstruction of geohistory in the age of reform : Chicago, Illinois, University of Chicago...

K.V. Cashman; S.A. Soule; B.H. Mackey; N.I. Deligne; N.D. Deardorff; H.R. Dietterich

175

Estimating the Wind Resource in Uttarakhand: Comparison of Dynamic Downscaling with Doppler Lidar Wind Measurements  

Broader source: Energy.gov [DOE]

Previous estimates of the wind resources in Uttarakhand, India, suggest minimal wind resources in this region. To explore whether or not the complex terrain in fact provides localized regions of...

176

Low-coherence doppler lidar with multiple time coherence of reference and probe waves  

Science Journals Connector (OSTI)

The notion of multiple time coherence of optical beams is introduced and mathematically ... pulses (MFPs), which exhibit multiple time coherence, and the possibility of their application for ... is based on nanos...

G. G. Matvienko; S. N. Polyakov; V. K. Oshlakov

2007-11-01T23:59:59.000Z

177

Finding Multiple Lanes in Urban Road Networks with Vision and Lidar  

E-Print Network [OSTI]

This paper describes a system for detecting and estimating the properties of multiple travel lanes in an urban road network from calibrated video imagery and laser range data acquired by a moving vehicle. The system operates ...

Huang, Albert S.

178

Constructing a GIS-based 3D urban model using LiDAR and aerial photographs  

E-Print Network [OSTI]

.................................................................. 30 3.4 Planimetric Information................................................... 37 3.5 Height Information........................................................... 39 3.6 Texture Information..................................................................... 72 35 Shadow method...................................................................................... 74 36 Differential parallax method ................................................................. 77 37 Laser ranging method...

Lin, Wei-Ming

2005-02-17T23:59:59.000Z

179

E-Print Network 3.0 - absorption lidar transmitter Sample Search...  

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

Collection: Environmental Sciences and Ecology 35 Field demonstration of simultaneous wind and temperature measurements from 5 to 50 km with Summary: double-edge magneto-optic...

180

LiDAR At Glass Buttes Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

References (1 January 2011) GTP ARRA Spreadsheet Additional References Retrieved from "http:en.openei.orgwindex.php?titleLiDARAtGlassButtesArea(DOEGTP)&oldid402493...

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

3D Reconstruction of 138 KV Power-lines from Airborne LiDAR Data.  

E-Print Network [OSTI]

??Due to infrequent and imprecise maintenance inspection in power-line corridors, accidents can be caused by interferences, for instance, surrounding trees. Transmission power-line inspection conventionally relies… (more)

Xiang, Qing

2014-01-01T23:59:59.000Z

182

Lidar-Measured Wind Profiles: The Missing Link in the Global Observing System  

Science Journals Connector (OSTI)

The three-dimensional global wind field is the most important remaining measurement needed to accurately assess the dynamics of the atmosphere. Wind information in the tropics, high latitudes, and stratosphere is particularly deficient. Furthermore, only ...

Wayman E. Baker; Robert Atlas; Carla Cardinali; Amy Clement; George D. Emmitt; Bruce M. Gentry; R. Michael Hardesty; Erland Källén; Michael J. Kavaya; Rolf Langland; Zaizhong Ma; Michiko Masutani; Will McCarty; R. Bradley Pierce; Zhaoxia Pu; Lars Peter Riishojgaard; James Ryan; Sara Tucker; Martin Weissmann; James G. Yoe

2014-04-01T23:59:59.000Z

183

An accurate and computationally efficient algorithm for ground peak identification in large footprint waveform LiDAR data  

E-Print Network [OSTI]

An accurate and computationally efficient algorithm for ground peak identification in large. In the current study, an accurate and computationally efficient algorithm was devel- oped for ground peak identification, called Filtering and Clustering Algorithm (FICA). The method was evaluated on Land, Vegetation

Mountrakis, Giorgos

184

30TH INTERNATIONAL COSMIC RAY CONFERENCE Atmospheric Monitoring with a LIDAR and an Infra-red Camera at Black Rock  

E-Print Network [OSTI]

density, the US atmospheric standard model is used so far, and a radio sonde data is also used COLLABORATION 1 Department of Physics, Kinki University 2 Graduate School of Science, Osaka City University 3 for cosmic rays experiment. The aims of atmospheric moni- toring are to calibrate observed energy

185

Exploring the relationships between vegetation measurements and temperature in residential areas by integrating LIDAR and remotely sensed imagery  

E-Print Network [OSTI]

at higher resolutions is much more difficult to obtain. This has allowed researchers to study urban heat island dynamics at a micro-scale. However, this study suggests that a vegetation index alone might not be the best surrogate variable for providing...

Clemonds, Matthew A

2006-10-30T23:59:59.000Z

186

LiDAR and hyperspectral analysis of mineral alteration and faulting on the west side of the Humboldt Range, Nevada  

Science Journals Connector (OSTI)

...Tester, J.W. ., et al.., 2006, The Future of Geothermal Energy, ISBN: 0615134386, available at: http://www1.eere.energy.gov/geothermal/egs_technology.html . Thompson, R.S. , Benson, L., and Hattori, E.M., 1986, A...

Eli Silver; Robert MacKnight; Erin Male; William Pickles; Peter Cocks; Al Waibel

187

Assessing Surface Fuel Hazard in Coastal Conifer Forests through the Use of LiDAR Remote Sensing.  

E-Print Network [OSTI]

??The research problem that this thesis seeks to examine is a method of predicting conventional fire hazards using data drawn from specific regions, namely the… (more)

Koulas, Christos

2013-01-01T23:59:59.000Z

188

Identifying the top of the tropical tropopause layer from vertical mass flux analysis and CALIPSO lidar cloud observations  

E-Print Network [OSTI]

defined as the level of zero net radiative heating, which occurs near 14.5­15 km [e.g., Folkins et al layer (TTL) by analyzing the vertical mass flux profile based on radiative transfer calculations will rise into the stratosphere. Thus convection has to transport air at least to the zero radiative heating

Hochberg, Michael

189

Short-range, Non-contact Detection of Surface Contamination Using Raman Lidar Arthur J. Sedlacek, III*  

E-Print Network [OSTI]

-time detection and identification of bulk amounts of substances on surfaces. Optical spectroscopic methods detection and identification of chemical spills is discussed. The new chemical sensor combines the spectral-range (meters to tens of meters), non-contact detection and identification of unknown substances on surfaces

190

Na double-edge magneto-optic filter for Na lidar profiling of wind and temperature in the  

E-Print Network [OSTI]

proposed by one of the authors (Williams), originating from the Na magneto-optic filter in solar-edge magneto-optic fil- ter (Na-DEMOF). It has advantages over the FPIs and iodine filters because of its magnetic field across the Na cell causes the Zeeman splitting of Na energy levels, which shifts

Chu, Xinzhao

191

Power Performance Measurements of the NREL CART-2 Wind Turbine Using a Nacelle-Based Lidar Scanner  

Science Journals Connector (OSTI)

Different certification procedures in wind energy, such as power performance testing or load estimation, require measurements of the wind speed, which is set in relation to the electrical power output or the turbine loading. The wind shear affects ...

Andreas Rettenmeier; David Schlipf; Ines Würth; Po Wen Cheng

2014-10-01T23:59:59.000Z

192

Doppler Lidar–Based Wind-Profile Measurement System for Offshore Wind-Energy and Other Marine Boundary Layer Applications  

Science Journals Connector (OSTI)

Accurate measurement of wind speed profiles aloft in the marine boundary layer is a difficult challenge. The development of offshore wind energy requires accurate information on wind speeds above the surface at least at the levels occupied by ...

Yelena L. Pichugina; Robert M. Banta; W. Alan Brewer; Scott P. Sandberg; R. Michael Hardesty

2012-02-01T23:59:59.000Z

193

Lidar determination of altitude profile of the refraction index in electro-optical monitoring of the Earths atmosphere  

E-Print Network [OSTI]

generated data 1. Introduction Control of atmosphere pollution is a complex problem of environmental of the reconstruction of the individual contributions and the overall altitude pro- file of the refraction index of air the pollutants and obtain detailed information about the distri- bution of the substances both in altitude

194

The Development of Instrumentation and Methods for Measurement of Air-Sea Interaction and Coastal Processes from Manned and Unmanned Aircraft /  

E-Print Network [OSTI]

Yaw Sum Rotation Rotated LiDAR Surface (x, y, z, t) Figure 2.4: Post-processing flow chart for the airborne lidar system.

Reineman, Benjamin D.

2013-01-01T23:59:59.000Z

195

DISCLAIMER  

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

level AMF ARM Mobile Facility AMFDL AMF Doppler Lidar ARM Atmospheric Radiation Measurement DL Doppler Lidar DMF Data Management Facility DOE U.S. Department of Energy DQO...

196

PowerPoint Presentation  

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

measurements in the Arctic using lidar and radar data measurements in the Arctic using lidar and radar data Ed Eloranta University of Wis-Madison http://lidar.ssec.wisc.edu Lidar-Radar Measurement of Effective Diameter Radar scattering cross section ~ ~ ρ ~ D 6 Lidar scattering cross section ~ ~ D 2 D eff_prime ~ ( ( ) 4 Notice that this differs for the usual definition: D eff = Photos by Kenneth Libbrecht Problem: Ice crystals are not spherical Hex columns Spheroid model to represent measureable properties of a snowflake Top view Side view Radar backscatter ~ particle concentration Lidar extinction ~ particle concentration

197

Proceedings of 2011 NSF Engineering Research and Innovation Conference, Atlanta, Georgia Grant #0856420 LiDAR and optical imaging for 3-D fracture orientations  

E-Print Network [OSTI]

measurements are sometimes carried at the base of existing slopes or during quarrying, tunneling or mining is responsible for the transportation of groundwater and contaminants [5]. Thus, the importance of the analysis

Maerz, Norbert H.

198

The Ability of MM5 to Simulate Ice Clouds: Systematic Comparison between Simulated and Measured Fluxes and Lidar/Radar Profiles at the  

E-Print Network [OSTI]

to produce too much solid water (ice and snow) and not enough liquid water. 1. Introduction Ice clouds playThe Ability of MM5 to Simulate Ice Clouds: Systematic Comparison between Simulated and Measured­NCAR Mesoscale Model (MM5) to simulate midlatitude ice clouds is evaluated. Model outputs are compared to long

Protat, Alain

199

Bachelor thesis: "Validation of an engineering model of the near wake wind field of wind turbines based on nacelle based lidar measurements"  

E-Print Network [OSTI]

Bachelor thesis: "Validation of an engineering model of the near wake wind field of wind turbines, in an early stage of wind farm layout optimisation and wind turbine loading calculation in wind farms developed/validated indirectly. Mainly, based on power measurements of downstream wind turbines, instead

Peinke, Joachim

200

Comparison of the relationships between lidar integrated backscattered light and accumulated depolarization ratios for linear and circular polarization for water droplets, fog oil, and dust  

Science Journals Connector (OSTI)

Recently, an empirical relationship between the layer integrated backscattered light and the layer accumulated depolarization ratio has been established for linear polarization for...

Cao, Xiaoying; Roy, Gilles; Roy, Nathalie; Bernier, Robert

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

1416 IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 46, NO. 5, MAY 2008 Fusion of Hyperspectral and LIDAR Remote Sensing  

E-Print Network [OSTI]

composition, distribution, and density. However, the assessment of the distribution of tree species in large techniques, allows the analysis of large areas in a fast and accurate way. Several studies have been carried1416 IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 46, NO. 5, MAY 2008 Fusion

Bruzzone, Lorenzo

202

Aerosol plume transport and transformation in high spectral resolution lidar measurements and WRF-Flexpart simulations during the MILAGRO Field Campaign  

E-Print Network [OSTI]

The Mexico City Metropolitan Area (MCMA) experiences high loadings of atmospheric aerosols from anthropogenic sources, biomass burning and wind-blown dust. This paper uses a combination of measurements and numerical ...

de Foy, B.

203

Raman-shifted KrF laser radiation with low amplified spontaneous emission for a rotational Raman daytime-temperature lidar  

SciTech Connect (OSTI)

Various configurations of a tunable two-stage KrF laser have been investigated for providing powerful laser pulses with very low amplified spontaneous emission (ASE). The lowest fraction (0.00017%) of ASE was attained with a single-pass amplifier and a phase-conjugate Brillouin mirror. The most suitable application envisaged for the laser source, i.e., remote daytime-temperature measurement by means of rotational Raman scattering, is a dedicated oscillator--amplifier configuration with an ASE of 0.005% at an output of 300 mJ. The very low values of ASE were measured with the aid of a thallium atomic-vapor filter.

Luckow, F.; Voss, E.; Zeyn, J.; Lahmann, W.; Weitkamp, C.; Michaelis, W. (Institut fuer Physik, GKSS-Forschungszentrum Geesthacht GmbH, D-21502 Geesthacht (Germany))

1994-07-15T23:59:59.000Z

204

Measuring gap fraction, element clumping index and LAI in Sierra Forest stands using a full-waveform ground-based lidar  

E-Print Network [OSTI]

conifer stands of varying height and stocking den- sities in the Sierra National Forest, CA, in August within crowns, and crowns are ar- ranged within forest stands (Chen et al., 1997). For conifer forest, foMeasuring gap fraction, element clumping index and LAI in Sierra Forest stands using a full

Ni-Meister, Wenge

205

2 Spatial variations in slip rate along the Death Valley-Fish Lake Valley 3 fault system determined from LiDAR topographic data and  

E-Print Network [OSTI]

deformation is accommodated on 22 structures east of Fish Lake Valley, or that rates of seismic 23 strain2 Spatial variations in slip rate along the Death Valley-Fish Lake Valley 3 fault system determined; accepted 11 July 2007; published XX Month 2007. 9 [1] The Death Valley-Fish Lake Valley fault zone (DV- 10

Black, Robert X.

206

Spatial variations in slip rate along the Death Valley-Fish Lake Valley fault system determined from LiDAR topographic data and  

E-Print Network [OSTI]

east of Fish Lake Valley, or that rates of seismic strain accumulation and release have not remainedSpatial variations in slip rate along the Death Valley-Fish Lake Valley fault system determined; accepted 11 July 2007; published 19 September 2007. [1] The Death Valley-Fish Lake Valley fault zone (DV

Frankel, Kurt L.

207

Lidar Remote Sensing for Environmental Monitoring IX, Edited by Upendra N. Singh, Kazuhiro Asai, Achuthan Jayaraman, Proc. of SPIE Vol. 7153, 71530Z  

E-Print Network [OSTI]

in a single FPA. When (100) silicon is properly etched with KOH:IPA:H2O solution through a thermally grown with KOH:IPA:H2O solution through a thermally grown oxide mask, square based pyramidal frustum or mesa in a dual- mode, operating in a linear mode with or without internal gain for passive imaging in daylight

Cole, Dan C.

208

Vindicator Lidar Assessment for Wind Turbine Feed-Forward Control Applications: Cooperative Research and Development Final Report, CRADA Number CRD-09-352  

SciTech Connect (OSTI)

Collaborative development and testing of feed-forward and other advanced wind turbine controls using a laser wind sensor.

Wright, A.

2014-01-01T23:59:59.000Z

209

Proceedings of EARSeL-SIG-Workshop LIDAR, Dresden/FRG, June 16 17, 2000 EARSeL eProceedings No. 1 148  

E-Print Network [OSTI]

-06-3048-6038 ABSTRACT The development of sensing subsystems is crucial to the operation of highly autonomous robots performance laser range finder. The sensor will be installed on an autonomous rover (RAS), lodged surfaces and from the poor transparency of the atmos- phere caused by wind-driven ice microcrystals

Oldenburg, Carl von Ossietzky Universität

210

Interface between land and water,shoreline change analyses for erosion/accretion,hazards,planning Derived from coastal survey maps,nautical charts,aerial photos,LIDAR  

E-Print Network [OSTI]

Derived from bathymetry,scientific mesh,one-dimensional hydrological models;measured by sub bottomShorelines Interface between land and water,shoreline change analyses for erosion;national cartographic standards often used Tracks and Cruises Shiptracks during a cruise,tracks of vehicles towed from

Wright, Dawn Jeannine

211

Proceedings of EARSeL-SIG-Workshop LIDAR, Dresden/FRG, June 16 17, 2000 EARSeL eProceedings No. 1 130  

E-Print Network [OSTI]

element measurements in any kind of solid material (1-3) as well as in liquids (4,5). The technique can. The unknown samples are often available as powders (e.g. coal fly ash, minerals, sed

Oldenburg, Carl von Ossietzky Universität

212

The Airborne Cloud–Aerosol Transport System: Overview and Description of the Instrument and Retrieval Algorithms  

Science Journals Connector (OSTI)

The Airborne Cloud–Aerosol Transport System (ACATS) is a Doppler wind lidar system that has recently been developed for atmospheric science capabilities at the NASA Goddard Space Flight Center (GSFC). ACATS is also a high-spectral-resolution lidar ...

John E. Yorks; Matthew J. McGill; V. Stanley Scott; Shane W. Wake; Andrew Kupchock; Dennis L. Hlavka; William D. Hart; Patrick A. Selmer

2014-11-01T23:59:59.000Z

213

1  

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

arctic lidar, an estimated total error curve is also shown for a system with sensitivity ten times better than the current lidar. Recovery of optical depth and scattering cross...

214

Applying Single-Layer Shallow-Water Theory to Gap Flows in the Brenner Pass Region  

E-Print Network [OSTI]

. pressure mean deviation of pot. temperature mean wind speed cross-section of topography shallow foehn jump;Doppler wind lidar FOEHN 30 Oct 1999 20 Oct 1999 gap flow ambient flow ridge lidar location LIDAR NOAA InnsbruckBrenner wind speed #12;SWM simulations FOEHN valley exit Ellboegen Tienzens Brenner Steinach/ Gries

Gohm, Alexander

215

ARM - Facility News Article  

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

August 31, 2006 [Facility News] August 31, 2006 [Facility News] New Lidars Installed at Tropical Western Pacific Site Bookmark and Share A representative from Sigma Space Corporation trains ARM operations staff in Darwin, Australia, on various components of the new micropulse lidar. The lidar, shown at left, will be placed in one of the outdoor instrument shelters, below a hole in the roof for the laser to pulse through. A representative from Sigma Space Corporation trains ARM operations staff in Darwin, Australia, on various components of the new micropulse lidar. The lidar, shown at left, will be placed in one of the outdoor instrument shelters, below a hole in the roof for the laser to pulse through. As reported in May, all the ARM sites are benefiting from new and upgraded micropulse lidars. This month, the new lidar was received in Darwin,

216

Research Highlight  

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

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

217

Research Highlight  

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

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

218

ARM - Facility News Article  

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

Raman Lidar Refurbishment and Upgrade Completed Raman Lidar Refurbishment and Upgrade Completed Bookmark and Share During the past several years, the sensitivity of the 8-year old Raman lidar at the ARM Climate Research Facility Southern Great Plains (SGP) site has decreased between a factor of 3-4, resulting in a lower maximum altitude and increased random error in the geophysical properties (such as water vapor mixing ration and aerosol extinction profiles) derived from lidar. In September 2004, a ten-month effort to refurbish and upgrade the aging lidar was completed, as ARM scientists visited the site to align the instrument's newly-refurbished receiving telescope, install new interference filters, and optimize signal levels. Replacing the telescope and interference filters returned the lidar's sensitivity back to its

219

ARM - Facility News Article  

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

October 6, 2010 [Facility News] October 6, 2010 [Facility News] New Raman Lidar En Route to Australia Bookmark and Share Since 1996, the ARM Southern Great Plains site has maintained one of the few operational Raman lidars in the world. Now, thanks to funding from the American Recovery and Reinvestment Act, the ARM Tropical Western Pacific site is about to join that exclusive group. A new Raman lidar, built by Sandia National Laboratories in New Mexico, is on its way to Darwin, Australia. Optics contained inside the Raman lidar shelter guide backscattered laser radiation in order to measure signals collected by the telescope. Optics contained inside the Raman lidar shelter guide backscattered laser radiation in order to measure signals collected by the telescope. The Raman lidar (light detection and ranging) uses pulses of laser

220

Home | Data.gov  

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

Previous Pause Next Previous Pause Next Wireless Spectrum Research & Development Senior Steering Group's Testbed Information Portal By State and DC since 1910 National since 1879 Provider Charge Data Credit Card Complaints Visit the new Health Data Community Science Cinema SciTech Connect One year of public safety data at Safety.Data.gov! Visit The New Agriculture Community National Bridge Inventory NHTSA releases SaferCar APIs and mobile app Explore Federal Research Data Latest Datasets Elevation - LiDAR Survey - Sheyenne R... Elevation - LiDAR Survey - Rainy Rive... Elevation - LiDAR Survey - Roseau Cou... Elevation - LiDAR Survey - Mississipp... Elevation - LiDAR Survey Minnehaha Cr... Elevation - Mobile LiDAR - Mississipp... Imagery - Lake Ashtabula, ND - 2009 4... Elevation - Survey Points - Minnesota...

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

Analysis of mixing layer heights inferred from radiosonde, wind profiler, airborne lidar, airborne microwave temperature profiler, and in-situ aircraft data during the Texas 2000 air quality study in Houston, TX  

E-Print Network [OSTI]

by wind profilers at the Wharton (WH), Liberty (LB), Houston Southwest (HSW), Ellington (EL), and LaMarque (LM) sites.................................................................. 93 18 Skew-T of WH radiosonde data at 1100 UTC...), Houston Southwest (HSW), Ellington (EL), and LaMarque (LM) sites ....................................... 97 21 The ML height distribution at 1600 UTC around the city of Houston...

Smith, Christina Lynn

2005-08-29T23:59:59.000Z

222

Rayleigh LIDAR and satellite (HALOE, SABER, CHAMP and COSMIC) measurements of stratosphere-mesosphere temperature over a southern sub-tropical site, Reunion (20.8° S; 55.5° E): climatology and comparison study  

E-Print Network [OSTI]

L. , and Keckhut, P. : Climatology and trends of the middleD. M. : A 14-year monthly climatology and trend in the 35–65D. A. : Temperature climatology of the mid- dle atmosphere

Sivakumar, V.; Vishnu Prasanth, P.; Kishore, P.; Bencherif, H.; Keckhut, P.

2011-01-01T23:59:59.000Z

223

Diode-pumped Nd:YAG master oscillator power amplifier with high pulse energy, excellent beam quality, and frequency-stabilized master oscillator as a basis for a next-generation lidar system  

Science Journals Connector (OSTI)

A pulsed, diode-laser-pumped Nd:YAG master oscillator power amplifier (MOPA) in rod geometry, frequency stabilized with a modified Pound–Drever–Hall scheme is presented. The apparatus...

Ostermeyer, Martin; Kappe, Philip; Menzel, Ralf; Wulfmeyer, Volker

2005-01-01T23:59:59.000Z

224

1  

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

Cirrus Extinction and Lidar Ratio Derived from Raman Cirrus Extinction and Lidar Ratio Derived from Raman Lidar Measurements at the Atmospheric Radiation Measurement Program Southern Site D. Petty and J. Comstock Pacific Northwest National Laboratory Richland, Washington D. Tuner Space Science Engineering Center, University of Wisconsin-Madison Madison, Wisconsin Introduction Range resolved microphysical properties and extinction coefficient in cirrus clouds are critical for assessing the impact of cirrus on climate. Vertical profiles of cirrus extinction are important parameters for radiative flux and heating rate calculations. The extinction-to-backscatter ratio (also called lidar ratio) provides information on the transmission and reflection properties of cirrus clouds and also on the

225

DOE's NREL and LLNL team with NOAA and University of Colorado...  

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

gathered wind and turbulence data using commercial platforms, including a specialized laser called a Windcube LIDAR and a sonic detection and ranging (SODAR) system, the...

226

Slide 1  

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

Ground-based Lidar Measurements of Aerosols and Clouds During CLASICCHAPS Funded by NASA HQ Science Mission Directorate Radiation Sciences Program Funded by Department of...

227

NASA multipurpose airborne DIAL system and measurements of ozone and aerosol profiles  

Science Journals Connector (OSTI)

An airborne differential absorption lidar (DIAL) system has been developed for the remote measurement of gas and aerosol profiles in the troposphere and lower stratosphere. The...

Browell, E V; Carter, A F; Shipley, S T; Allen, R J; Butler, C F; Mayo, M N; Siviter, J H; Hall, W M

1983-01-01T23:59:59.000Z

228

HSRL mass estimate based on CALIPSO  

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

OBSERVATIONS FROM THE NASA LANGLEY AIRBORNE HIGH SPECTRAL RESOLUTION LIDAR AND PLANS FOR ACTIVE-PASSIVE AEROSOL-CLOUD RETRIEVALS Chris A. Hostetler, Richard A. Ferrare, John W....

229

Slide 1  

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

from the High Spectral Resolution Lidar (HSRL) Observations from CHAPS Funded by NASA HQ Science Mission Directorate Radiation Sciences Program Funded by Department of...

230

E-Print Network 3.0 - airborne ground penetrating Sample Search...  

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

In case of opaque human- made features like buildings, only one return pulse... the penetration rate of a lidar beam within the canopy. In urban areas, buildings totally...

231

S. Crewell  

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

the ARM Mobile Facilities deployment in the Black forest, Germany, additional microwave radiometers and lidars were operated in the Murg Valley in order to Microwave radiometry and...

232

Arterial Traffic Activity Estimation  

E-Print Network [OSTI]

F. Moosmann and C. Stiller, "Velodyne slam," in IntelligentMoosmann, O. Pink, and C. Stiller, "Segmentation of 3d lidar

Yang, Qichi

2013-01-01T23:59:59.000Z

233

zak-99.PDF  

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

Instrumentation Multi-wavelength integrating nephelometer Condensation nuclei counter (CNC) Filter samplers Micropulse Lidar (MPL) NOAA CMDL NOAA CMDL NOAA CMDL ARM Gas...

234

E-Print Network 3.0 - above-ground biomass derived Sample Search...  

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

biomass estimates from lidar. Forest above- ground biomass... that the height of medium energy returns (RH50) is better related to above- ground biomass than the height at...

235

E-Print Network 3.0 - atmospheric aerosol processes Sample Search...  

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

of Applied Science Collection: Environmental Sciences and Ecology 3 Arctic-Winter Climatology and Radiative Effects of Clouds and Aerosols Based on Lidar and Radar Measurements...

236

Untitled  

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

clouds to observations from space-borne lidar Maike Ahlgrimm, ECMWF; David A. Randall, Colorado State University; Martin Khler, ECMWF The Integrated Forecasting System's...

237

CHARACTERIZATION OF A GEIGER-MODE AVALANCHE PHOTODIODE DETECTOR FOR  

E-Print Network [OSTI]

CHARACTERIZATION OF A GEIGER-MODE AVALANCHE PHOTODIODE DETECTOR FOR HIGH SPECTRAL RESOLUTION LIDAR................................................................................................ 20 3.2 Operation principles of an avalanche photodiode.................................. 22 3

Eloranta, Edwin W.

238

E-Print Network 3.0 - atmospheres thin atmospheres Sample Search...  

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

Physics, Simon Fraser University Collection: Physics 7 Arctic-Winter Climatology and Radiative Effects of Clouds and Aerosols Based on Lidar and Radar Measurements at PEARL...

239

ARM - Field Campaign - Fall 1997 Cloud IOP  

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

- MMCR, Lidar, Sunphotometer Research Participants: - Eugene Clothiaux, Roger Marchand, & Dean Houck Campaign Data Sets IOP Participant Data Source Description Final Data...

240

E-Print Network 3.0 - airborne acoustical noise Sample Search...  

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

and lidar sensors. Consequently, the methodology for instru- ment calibration, noise reduction... in the data processing sequence. For an acoustic system, ambient ... Source:...

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

Photonic Sensing Technology in the Energy Sector  

Science Journals Connector (OSTI)

A review of photonic sensing technologies based on spectroscopic, fiber optics, and LIDAR technologies used in energy sector for measurement and monitoring applications in wind, oil...

Mendez, Alexis

242

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

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

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

243

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

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

Division 2013-2014 10112 - 93014 Darin Damiani Multiple sites, Multiple states Optimization of Reservoir Storage Capacity in Different Depositional Environments LIDAR and...

244

X:\\ARM_19~1\\4264.FRT  

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

absorption lidar DISORT discrete ordinate radiative transfer DMSP Defense Meteorological Satellite Program DOE U.S. Department of Energy DVN daytime versus nighttime DWR dual...

245

March 14, 2011 NIST Aerosol Metrology Workshop Optical Properties: The Global  

E-Print Network [OSTI]

are difficult without involving satellite measurements Correspondence with satellite measurements require. Improved regional forecasts of both weather and air quality #12;GAW Aerosol Lidar Observation Network

246

Impact of Vaisala Radiosonde Humidity Corrections on ARM IOP...  

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

dry bias in Vaisala radiosonde humidity measurements has been noted in comparison to satellite water vapor retrievals (Soden and Lanzante 1996) and Raman lidar measurements...

247

MPL  

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

signal (overcast cases) * Lidars can retrieve optical depth of thick clouds using solar background light as a signal, rather than (as now) merely a noise to be subtracted....

248

E-Print Network 3.0 - advanced imaging techniques Sample Search...  

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

Photogrammetry Advanced Photogrammetric Techniques Ayman F. Habib 25 LiDAR cloud Image patch... and intensity images Raw point cloud Linear Features Extraction Advanced...

249

E-Print Network 3.0 - asarate hararati dar Sample Search Results  

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

Sample Questions Summary: ENGO 531: Advanced Photogrammetric and Ranging Techniques Sample Questions 1 of 2 Chapter 4: LiDAR... Mapping 1. What are the main differences...

250

ARM - Evaluation Product - Cloud and Vertical Velocity Statistics...  

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

dlprofwstats1newsom.c1 Directory Organization subdirectories Citations ARM Doppler Lidar Handbook, DOESC-ARM-TR-101, http:www.arm.govpublicationstechreportshandbooks...

251

ARM - Instrument Handbooks  

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

Ground Radiometers on Stand for Upwelling Radiation (Draft) GNDRAD 2004 Infrared Thermometer IRT 2006 Micropulse Lidar MPL 2012 Microwave Radiometer MWR 2006 Microwave...

252

ARM - Field Campaign - SUbsonic Aircraft: Contrail & Cloud Effects...  

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

Point of Contact Campaign Data Sets IOP Participant Data Source Description Final Data Beal ASD Spectrometer Order Data Halthore CIMEL Order Data Mace Polarization Lidar...

253

Fusion of multiple image types for the creation of radiometrically-accurate synthetic scenes  

E-Print Network [OSTI]

Fusion of multiple image types for the creation of radiometrically-accurate synthetic scenes-in-the-loop requirements for many aspects of synthetic hyperspectral scene construction. Through a fusion of 3D lidar data: lidar, hyperspectral, fusion, DIRSIG, building reconstruction, synthetic scene 1 INTRODUCTION Over

Kerekes, John

254

BOSTON UNIVERSITY GRADUATE SCHOOL OF ARTS AND SCIENCES  

E-Print Network [OSTI]

in climate change and remote sensing studies. He introduced me to the lidar remote sensing technique, which of other scientists working on vegetation lidar remote sensing. I am honored to have Drs. Davis, Phillips in the exchange of heat, momentum, water, and carbon between the land surface and the atmosphere. The rates

Myneni, Ranga B.

255

0.5 m Telescope Computer Adjustable  

E-Print Network [OSTI]

. Our objective is to demonstrate a new method of remotely determining ice water content in cirrus:17 - 02:41 (GMT) Altitude (km) LidarRawSignal(Power) Combined NFOV Signal Molecular NFOV Signal Combined AWFOV Signal Molecular AWFOV Signal Measured Lidar returns Inverted Aerosol Inverted Molecular Cirrus

Eloranta, Edwin W.

256

ARM - Instrument - rl  

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

govInstrumentsrl govInstrumentsrl Documentation RL : Handbook RL : Instrument Mentor Monthly Summary (IMMS) reports RL : Data Quality Assessment (DQA) reports ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Raman Lidar (RL) Beneficiary of Recovery Act funding. Instrument Categories Aerosols, Atmospheric Profiling Picture of the Raman Lidar (RL) Picture of the Raman Lidar (RL) General Overview The Raman Lidar (RL) is an active, ground-based laser remote sensing instrument that measures vertical profiles of water-vapor mixing ratio and several cloud- and aerosol-related quantities. Lidar (light detection and ranging) is the optical analog of radar, using pulses of laser radiation to probe the atmosphere. This system is fully computer automated, and will run

257

High resolution properties of the marine atmospheric boundary layer  

SciTech Connect (OSTI)

Los Alamos National Laboratory (LANL) participated in the Central Equatorial Pacific Experiment (CEPEX) by fielding a water-vapor Raman lidar on board the Research Vessel Vickers. The lidar measured water vapor concentration from the surface to lower tropospheric altitudes in order to support the CEPEX goal of evaluating a hypothesis regarding feedback mechanisms for global circulation models. This report describes some of the features observed within the marine Atmospheric Boundary Layer (ABL) and the lower troposphere. Data was collected continuously 24 hours per day over the equatorial Pacific from March 8th to March 2 1st of 1993 while in route between Guadalcanal and Christmas Island (the transect was at approximately 2{degree} south latitude). The lidar collected vertical transects of water vapor concentration up to 10 km during night operations and 4 km in the day. The vertical lidar profiles of water vapor were produced by summing the data over a period up to 600 seconds. The water-vapor Raman lidar measured the properties of the marine ABL as well as the lower and mid-troposphere. From the lidar water vapor profiles, ``images`` of water vapor concentration versus altitude and date or sea surface temperature will be produced along with other products such as latent heat fluxes. The Raman water vapor lidar data will be used to better understand the role of transport and exchange at the ocean-atmosphere interface and throughout the marine atmosphere.

Cooper, D.; Cottingame, W.; Eichinger, W.; Forman, P.; Lebeda, C.; Poling, D.; Thorton, R.

1994-02-01T23:59:59.000Z

258

ARM - Publications: Science Team Meeting Documents  

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

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

259

ARM - Publications: Science Team Meeting Documents  

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

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

260

ARM_Mayor_Poster_FINAL5.ai  

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

Raman-shifted Eye-safe Aerosol Lidar (REAL) Raman-shifted Eye-safe Aerosol Lidar (REAL) Shane Mayor, Scott Spuler, Bruce Morley National Center for Atmospheric Research (NCAR) Boulder, Colorado 3 March 2006 00:16:12 UTC 2 km 4 km T-REX: March-April 2006 T-REX The NCAR REAL is available for use. Please contact shane@ucar.edu or go to www.lidar.ucar.edu 1km 2km 1km 2km Dry BG Wet MS2 BACKSCATTER INTENSITY DEPOLARIZATION RATIO Dry BG Wet MS2 1.54-microns wavelength, rapid-scanning, eye-safe, aerosol lidar CHATS: March-June 2007 Independence, CA Dixon, CA Dugway Proving Ground, UT REAL v2 for urban aerosol plume search & track Present REAL Developments at NCAR Goal: distinguish wet and dry biological aerosol releases with depol sensitivity Goal: observe wave & rotor structure Under a tech-transfer licensing agreement

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

Slide 1  

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

Kassianov Kassianov Aerosol remote sensing under partly cloudy conditions: How well are we doing? Background Ground-based/airborne lidar observations: Raman Lidar (RL), Micropulse Lidar (MPL) High Spectral Resolution Lidar (HSRL) Can they be extended by other observations? Outline Q1: Why it is important? Q2: What issues do we have? Q3: How can we address them? Q1: IAE and Aerosol RF Simultaneous and coincident measurements of aerosol and cloud properties are desirable: Indirect Aerosol Effects (IAEs) Aerosol Radiative Forcing (RF) Ghan and Schwartz, BAMS, 2007 Myhre et al., ACP, 2009 Q1: Occurrence Partly cloudy sky: 30% (SGP), 40-80% (TWP) Credit: C. Long Q2: 3D Problem Examples of 3D Cloud Impacts: Positive Cloud Radiative Forcing (RF) Reflectance Enhancement Cloud Screening Q2: Positive Cloud RF

262

Research Highlight  

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

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

263

ARM - Measurement - Backscatter depolarization ratio  

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

govMeasurementsBackscatter depolarization ratio govMeasurementsBackscatter depolarization ratio ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Backscatter depolarization ratio The ratio of cross polarized to co-polarized elastic backscatter. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments HSRL : High Spectral Resolution Lidar RL : Raman Lidar Field Campaign Instruments HSRL : High Spectral Resolution Lidar MIRAI : JAMSTEC Research Vessel Mirai MPL-AIR : Micropulse Lidar- Airborne

264

ARM - Facility News Article  

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

May 15, 2006 [Facility News] May 15, 2006 [Facility News] New Micropulse Lidars to Replace Old Ones; Deployments Begin at SGP Bookmark and Share A representative from Sigma Space Corporation demonstrates the operation of the new micropulse lidar to ARM instrument mentors and site operations technicians. A representative from Sigma Space Corporation demonstrates the operation of the new micropulse lidar to ARM instrument mentors and site operations technicians. On May 3, the first of seven new and upgraded micropulse lidars (MPLs) was deployed at the ARM Southern Great Plains (SGP) site's Central Facility. These seven identical systems (including one spare) will replace the existing MPLs deployed at facilities throughout the SGP site and include new polarization capability. The MPLs provide critical backscatter

265

Microsoft PowerPoint - ferrare_STM_2009_poster [Compatibility...  

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

Anthony Cook 1 , David Harper 1 , Ray Rogers 1 , Mike Obland 1 , Haf Jonsson 5 , Larry Berg 4 HSRL measurements acquired over SGP Raman lidar on June 12, 2007 during DOE CHAPS...

266

The single pixel GPS: learning big data signals from tiny coresets  

E-Print Network [OSTI]

We present algorithms for simplifying and clustering patterns from sensors such as GPS, LiDAR, and other devices that can produce high-dimensional signals. The algorithms are suitable for handling very large (e.g. terabytes) ...

Feldman, Dan

267

Eye-safe single-frequency single-mode polarized all-fiber pulsed laser with peak power of 361??W  

Science Journals Connector (OSTI)

An all-fiber, single-frequency, single-mode linearly polarized, high peak power pulsed laser at 1540 nm for coherent Doppler wind lidar is demonstrated. A narrow-linewidth seed...

Zhang, Xin; Diao, Weifeng; Liu, Yuan; Zhu, Xiaopeng; Yang, Yan; Liu, Jiqiao; Hou, Xia; Chen, Weibiao

2014-01-01T23:59:59.000Z

268

Beyond 10 Km Range wind-speed measurement with a 1.5 µm all-fiber laser source  

Science Journals Connector (OSTI)

We report the development of a high power single-frequency all-fiber laser for long-range wind speed measurement. The laser source has been integrated in a Lidar architecture and we...

Renard, William; Goular, Didier; Valla, Matthieu; Planchat, Christophe; Augere, Beatrice; Dolfi-Bouteyre, Agnes; Besson, Claudine; Canat, Guillaume

269

Tuesday, March 24, 2009 POSTER SESSION I: SEEING IS BELIEVING  

E-Print Network [OSTI]

for Future Planetary Missions [#2078] A flash LIDAR instrument is being developed by Ball Aerospace for NEO remote sensing applications. Sobron P. Freeman J. J. Wang A. Field Test of the Water-Wheel IR (WIR

Rathbun, Julie A.

270

Journal of Animal Ecology 2006  

E-Print Network [OSTI]

Water Intake Structures B & M Nakato * ** Study of Frazil-Ice for Wisconsin Electric's Power Plant near of CASES-99 Lidar Data Army Eichinger ** Development of a Web-Based Virtual Fluids Lab ATAC Eichinger

He, Fangliang

271

IIHR--HYDROSCIENCE & ENGINEERING COLLEGE OF ENGINEERING  

E-Print Network [OSTI]

Water Intake Structures B & M Nakato * ** Study of Frazil-Ice for Wisconsin Electric's Power Plant near of CASES-99 Lidar Data Army Eichinger ** Development of a Web-Based Virtual Fluids Lab ATAC Eichinger

Stanier, Charlie

272

Phase Insensitive Frequency Modulation Sensor for Long Distance CO2 Monitoring  

Science Journals Connector (OSTI)

We report a long distance CO2 monitoring LIDAR using phase insensitive Two-Tone Frequency Modulation (TTFM) over 1.4km. We could detect 1ppm single pass CO2...

Wu, Sheng; Deev, Andrei

273

Goulden Equipment and Facilities Lab: 1400 ft2  

E-Print Network [OSTI]

(Sorval RC 5C, etc). Instruments for in-situ remote sensing: (2) FLIR thermal cameras, (2) JAI VIS fluorescence, (1) Ocular Robotics scanning LIDAR, misc pan-tilt mounts (FLIR D100 and D48), computers, software

Kimball, Sarah

274

E-Print Network 3.0 - airborne sunphotometer airborne Sample...  

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

CALNEX AND CARES Chris... (LaRC) airborne high spectral resolution lidar (HSRL) on the NASA B-200 aircraft measured aerosol... distribution of aerosols and to provide the vertical...

275

ARM - Publications: Science Team Meeting Documents  

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

NASAGSFC Scanning Raman Lidar Measurements of Water Vapor and Cirrus Clouds During WVIOP2000 and AFWEX Whiteman, D.N.(a), Evans, K.D.(b), Di Girolamo, P.(c), Demoz, B.B.(b),...

276

Aerial reconstructions via probabilistic data fusion  

E-Print Network [OSTI]

In this thesis we propose a probabilistic model that incorporates multi-modal noisy measurements: aerial images and Light Detection and Ranging (LiDAR) to recover scene geometry and appearance in order to build a 3D ...

Cabezas, Randi

2013-01-01T23:59:59.000Z

277

Influence of stand and site conditions on the quality of digital elevation models underlying New Zealand forests  

Science Journals Connector (OSTI)

When aerial LiDAR data is used to construct Digital Elevation Models (DEMs) under vegetation, DEM quality will invariably suffer due to attenuation of the laser pulses by the land cover. Although the ratio of ...

Michael S Watt; Thomas Adams; Pete Watt…

2013-06-01T23:59:59.000Z

278

8, 28492862, 2008 Equatorial Kelvin  

E-Print Network [OSTI]

-campaigns in the tropics have been conducted in the recent years with two different LIDAR systems at Paramaribo in Suriname EGU On the basis of observational data obtained in Paramaribo, Suriname we showed recently that cirrus

Paris-Sud XI, Université de

279

Airborne CO2 DIAL measurement of atmospheric tracer gas concentration distributions  

Science Journals Connector (OSTI)

An airborne differential absorption lidar system employing high-energy line-tunable CO2 lasers has been used to map cross-plume vertical distributions resulting from a...

Uthe, Edward E

1986-01-01T23:59:59.000Z

280

JUNE 13, 2013 AUDIT REPORT  

E-Print Network [OSTI]

System HTV H-II Transfer Vehicle ISS International Space Station LIDAR Light Detection and Ranging OIG-016 Final report released by: Paul K. Martin Inspector General Acronyms ATV Automated Transfer Vehicle CDR

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

ARM - Publications: Science Team Meeting Documents  

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

feedback of cirrus clouds on the Earths climate. We use a unique, year-long dataset of water vapor mixing ratio inferred from ground-based Raman lidar measurements at...

282

2009 BBC Project Activity Univ. of Washington  

E-Print Network [OSTI]

(PI) / Sean McDonald (Post- Doc) Cooperative Fish and Wildlife Research Unit Molluscan Study Over, seismic surveys, and geophysical surveys, and LiDAR. However, while the Seattle fault has been well mapped

Washington at Seattle, University of

283

Tropospheric Emissions: Monitoring of Pollution  

E-Print Network [OSTI]

, O3 lidar) R.B. Pierce NOAA/NESDIS Co-I AQ modeling, data assimilation R. Spurr RT Solutions, Inc. Co geostationary communications satellite with expected ~2019 launch Provides hourly daylight observations

Jacob, Daniel J.

284

A Synergistic Analysis of Cloud Cover and Vertical Distribution from A-Train and Ground-Based Sensors over the High Arctic Station Eureka from 2006 to 2010  

Science Journals Connector (OSTI)

Active remote sensing instruments such as lidar and radar allow one to accurately detect the presence of clouds and give information on their vertical structure and phase. To better address cloud radiative impact over the Arctic area, a combined ...

Yann Blanchard; Jacques Pelon; Edwin W. Eloranta; Kenneth P. Moran; Julien Delanoë; Geneviève Sèze

2014-11-01T23:59:59.000Z

285

Aerial Photography At Dixie Valley Geothermal Area (Helton, Et...  

Open Energy Info (EERE)

Fallon Geothermal Exploration Project. Notes High resolution LiDAR and 1:12000 scale low-sun-angle aerial photography was used in southern Dixie Valley to help better characterize...

286

Thin Cloud Length Scales Using CALIPSO and CloudSat Data  

E-Print Network [OSTI]

Thin clouds are the most difficult cloud type to observe. The recent availability of joint cloud products from the active remote sensing instruments aboard CloudSat and the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite (CALIPSO) facilitates...

Solbrig, Jeremy E.

2010-10-12T23:59:59.000Z

287

ARM - Recovery Act  

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

being replaced with the new up-to-date models. Meanwhile, the Doppler lidar represents a brand new measurement capability for the facility, enabling 3D mapping of turbulence...

288

Power spectrum and fractal dimension of laser backscattering from the ocean  

Science Journals Connector (OSTI)

We flew an airborne lidar perpendicular to the coastline along straight-line transects that varied in length between 230 and 280 km. The sample spacing was ?3m, so we sampled almost...

Churnside, James H; Wilson, James J

2006-01-01T23:59:59.000Z

289

Scattering Properties of Oriented Hexagonal Ice Crystals  

E-Print Network [OSTI]

To interpret the data from spaceborn lidar measurements, one must have a basic understanding of the backscattering of oriented ice particles. The conventional raytracing method is not applicable to the scattering of light by oriented particles...

Zhang, Feng

2010-01-14T23:59:59.000Z

290

ARM - Facility News Article  

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

Improve Reliability Bookmark and Share The Raman Lidar is an active, ground-based laser remote sensing instrument that measures vertical profiles of water-vapor mixing ratio and...

291

ARM - Publications: Science Team Meeting Documents  

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

Cloud Cover and Phase During Arctic Winter from DABul Lidar Guest, P. Preliminary Surface Heat Budget Results from SHEBA Guo, Y.-R. Assimilation of ARM WVIOP-96 Data with the...

292

Stop 1. Bastendorff Beach Figure 11. Navigation  

E-Print Network [OSTI]

stretches of dune or bluffbacked beach bounded by rocky headlands that extend into water that is deep and accuracy that current Oregon Lidar Consortium data, they are sufficiently accurate in the relatively flat

293

Sea-Level Rise, El Niño, And The Future Of The California Coastline  

E-Print Network [OSTI]

Projected future coastal flood inundation maps using NOAA’sProjected future coastal flood inundation map for the SantaBarbara’s potential future flood elevations, 2010 LiDAR data

Russell, Nicole Lian

2014-01-01T23:59:59.000Z

294

Post-fire Tree Establishment Patterns at the Subalpine Forest-Alpine Tundra Ecotone: A Case Study in Mount Rainier National Park  

E-Print Network [OSTI]

imagery and 2003 aerial photography to map 33 years of changes in arboreal vegetation. I created detailed maps of abiotic variables from a LIDAR-based DEM and biotic variables from classified remotely sensed data. I linked tree establishment patterns...

Stueve, Kirk M.

2010-10-12T23:59:59.000Z

295

ARM - Facility News Article  

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

October 25, 2010 [Facility News] October 25, 2010 [Facility News] Testing Underway for New Doppler Lidars Bookmark and Share Two of the three new Doppler lidars are shown here during testing at the Southern Great Plains site in October. Two of the three new Doppler lidars are shown here during testing at the Southern Great Plains site in October. To improve climate models, the scientific community needs accurate and routine measurements of atmospheric winds with high vertical and temporal resolution under clear-air conditions. In particular, measurements of clear-air vertical air velocities will compliment in-cloud vertical velocity measurements from existing 35 and 95 gigahertz ARM cloud radars. In response to this need, three new Doppler lidars were purchased with funds from the American Recovery and Reinvestment Act and began a test

296

Section 44  

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

An Automated Cloud Mask Algorithm for the An Automated Cloud Mask Algorithm for the Micropulse Lidar G. G. Mace Department of Meteorology Pennsylvania State University University Park, Pennsylvania To perform cloud base analysis, an automated technique for sky signal using the standard lidar equation (Spinhirne determination of cloud base height from the raw lidar returns 1993) and midlatitude standard atmospheres. After is needed. Previously, a straightforward signal thresholding normalization, the observations form a swarm of points about algorithm was used to determine cloud base height. The unity with the scatter due to electronic noise, solar background difficulty with this approach is illustrated in Figure 1a. The and cloud and aerosol return. micropulse lidar operates at a wavelength of 523 nm, which is

297

The Environment of Precipitating Shallow Cumulus Convection  

Science Journals Connector (OSTI)

Quantitative estimates of precipitation in a typical undisturbed trade wind region are derived from 2 months of radar reflectivity data and compared to the meteorological environment determined from soundings, surface flux, and airborne-lidar ...

Louise Nuijens; Bjorn Stevens; A. Pier Siebesma

2009-07-01T23:59:59.000Z

298

Measuring a Utility-Scale Turbine Wake Using the TTUKa Mobile Research Radars  

Science Journals Connector (OSTI)

Observations of the wake generated by a single utility-scale turbine and collected by the Texas Tech University Ka-band mobile research radars on 27 October 2011 are introduced. Remotely sensed turbine wake observations using lidar technology have ...

Brian D. Hirth; John L. Schroeder; W. Scott Gunter; Jerry G. Guynes

2012-06-01T23:59:59.000Z

299

Quantification of Salt Marsh Carbon Stocks: Integration of Remote Sensing Data and Techniques with Field Measurements  

E-Print Network [OSTI]

in this study show the capability of remote sensing data for the characterization of salt marsh terrain and vegetation heights and the estimation of above-ground biomass quantities. The best biomass prediction models using lidar heights reported considerably...

Kulawardhana, Ranjani W

2013-12-02T23:59:59.000Z

300

The penetration rate of laser pulses transmitted from a small-footprint airborne LiDAR: a case study in closed canopy, middle-aged pure sugi (Cryptomeria japonica D. Don) and hinoki cypress (Chamaecyparis obtusa Sieb. et Zucc.) stands in Japan  

Science Journals Connector (OSTI)

Penetration rates of laser pulses transmitted from a small-...Chamaecyparis obtusa Sieb. et Zucc.) and sugi (Cryptomeria japonica...D. Don) plantations that had similar levels of canopy openness were studied. The...

Tomoaki Takahashi; Kazukiyo Yamamoto; Yosuke Miyachi…

2006-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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.


302

Section 79  

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

7 7 Performance of the Mini-MOPA, CO Doppler, 2 Cloud Lidar at CART J. M. Intrieri and W. L. Eberhard NOAA, Environmental Technology Laboratory Boulder, Colorado W. A. Brewer Cooperative Institute for Research in Environmental Sciences University of Colorado/NOAA, Environmental Technology Laboratory Boulder, Colorado Introduction The Environmental Technology Laboratory (ETL) mini- Master Oscillator Power Amplifier (MOPA) Doppler lidar was successfully deployed and demonstrated during the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) 1996 Spring Intensive Observation Period (IOP). The project objective was to develop and demonstrate a bread-board version of a CO Doppler lidar (operating in the 2 thermal infrared [IR]) that could eventually be engineered as

303

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

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

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

304

Research Highlight  

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

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

305

X:\ARM_19~1\P283-315.WPD  

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

r) r) CE(r)J[ m (r) p (r) c (r)]T 2 (r)/r 2 n b n b µs µs Session Papers 297 (1) Cirrus and Aerosol Lidar Profilometer - Analysis and Results J. D. Spinhirne and V. S. Scott NASA Goddard Space Flight Center Greenbelt, Maryland J. A. Reagan and A. Galbraith Department. of Electrical Engineering University of Arizona Tucson, Arizona Introduction A cloud and aerosol lidar data set from over a year of near continuous operation of a micro pulse lidar (MPL) instrument at the Cloud and Radiation Testbed (CART) site has been established. MPL instruments are to be included in the Ames Research Center (ARC) instrument compliments for the SW Pacific and Arctic ARM sites. Operational processing algorithms are in development for the data sets. The derived products are to be cloud presence and classification, base height, cirrus thickness,

306

Section 22  

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

9 9 Raman Lidar Installed at Southern Great Plains Cloud and Radiation Testbed Site for Profiling Atmospheric Water Vapor, Aerosols, and Clouds J.E.M. Goldsmith, S. E. Bisson, and F. H. Blair Sandia National Laboratories Livermore, California We have developed a ruggedized Raman lidar system that a LabVIEW-based program; after the operator responds to a resides permanently at the Southern Great Plains (SGP) Cloud few dialog boxes during system start-up, no further operator and Radiation Testbed (CART) site, providing vertical attention is required. profiles of water vapor, aerosols, and clouds. The CART Raman Lidar was delivered to the site on September 13, 1995, The system is housed in a seatainer, a metal shipping con- and became operational on September 19, in time to support

307

ARM - VAP Product - 10rlprofdep1turn  

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

rlprofdep1turn rlprofdep1turn Documentation Data Management Facility Plots (Quick Looks) Citation DOI: 10.5439/1027252 [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Example 10rlprofdep1turn Data Plot Example 10rlprofdep1turn data plot VAP Output : 10RLPROFDEP1TURN 10-minute Raman Lidar: aerosol depolarization profiles and single layer cloud optical depths from first Turner algorithm Active Dates 1998.03.01 - 2013.12.28 Originating VAP Process Raman LIDAR Vertical Profiles : RLPROF Description The primary goal of the Raman Lidar Profiles - Depolarization Ratio (RLPROF_DEP) VAP is to produce linear depolarization ratio profiles. Linear depolarization is defined as the ratio of the cross-polarized return to the

308

Section 7  

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

A One-Year Cloud Climatology Derived from the Micro Pulse Lidar G. G. Mace Department of Meteorology, University of Utah Salt Lake City, Utah E. E. Clothiaux and T. P. Ackerman Department of Meteorology, Pennsylvania State University University Park, Pennsylvania J. D. Spinhirne and V. S. Scott NASA/Goddard Space Flight Center Greenbelt, Maryland Abstract A cloud detection algorithm that attempts to identify all of the significant power returns from the vertical column above the micro pulse lidar at all times was applied to one year of micro pulse lidar data collected at the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) central facility near Lamont, Oklahoma. The results of this analysis are presented, and the

309

campbell-98.pdf  

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

9 9 Operational Cloud Boundary Detection and Analysis from Micropulse Lidar Data J. R. Campbell and D. L. Hlavka Science Systems and Applications Inc. Greenbelt, Maryland J. D. Spinhirne NASA-Goddard Space Flight Center Greenbelt, Maryland D. D. Turner and C. J. Flynn Pacific Northwest National Laboratory Richland, Washington Introduction The micropulse lidar (MPL) was developed at the National Aeronautics and Space Administration's (NASA's) Goddard Space Flight Center (GSFC) as the result of research on space-borne lidar techniques. It was designed to provide continuous, unattended observations of all significant atmospheric cloud and aerosol structure with a rugged, compact system design and the benefit of eye safety (Spinhirne 1993). The significant eye safety feature is

310

ARM - VAP Process - rlprof  

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

Productsrlprof Productsrlprof Documentation & Plots Technical Report Data Management Facility Plots (Quick Looks) ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send VAP : Raman LIDAR Vertical Profiles (RLPROF) Instrument Categories Aerosols, Atmospheric Profiling, Derived Quantities and Models Rlprof data flow diagram Rlprof data flow diagram Data flowchart for the RLPROF family. (Larger image available.) The Raman lidar automatically attempts to reoptimize the position of the laser beam in the detector's field-of-view every few hours (this is required for most narrow field-of-view lidar systems). However, this can introduce alignment artifacts in the narrow field-of-view data due to the way the detection channels are arranged on the optical bench. A suite of

311

ARM - Publications: Science Team Meeting Documents  

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

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

312

ferrare-99.PDF  

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

CART Raman Lidar Retrievals of Aerosol Extinction CART Raman Lidar Retrievals of Aerosol Extinction and Relative Humidity Profiles R. A. Ferrare National Aeronautics and Space Administration Langley Research Center Hampton, Virginia L. A. Heilman Science Applications International Corporation/ National Aeronautics and Space Administration Langley Research Center Hampton, Virginia D. D. Turner Pacific Northwest National Laboratory Richland, Washington W. F. Feltz University of Wisconsin Madison, Wisconsin Introduction We have developed and recently implemented automated algorithms to retrieve aerosol extinction profiles from the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) Raman Lidar data acquired during both daytime and nighttime operations. These profiles are important for determining the effects of aerosols on the clear-sky radiative flux, as well as for validating the aerosol retrieval

313

PowerPoint Presentation  

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

SIRTA, a French Atmospheric Observatory SIRTA, a French Atmospheric Observatory for Clouds, Aerosols and Water Vapor Institut Pierre Simon Laplace, France H. Chepfer Coordinator : M. Haeffelin (haeffelin@lmd.polytechnique.fr) Contributors : C. Boitel, D. Bouniol, M. Chiriaco, P. Drobinski, J-L. Dusfrene, C. Goukenleuque, M. Grall, A. Hodzic, F. Hourdin, F. Lapouge, A Mathieu, P. Minnis, Y. Morille, C. Naud, V. Noel, B. O'Hirok, J. Pelon, C. Pietras, A. Protat, B. Romand, R. Vautard SIRTA : Atmospheric Remote Sensing 25 km south of Paris Palaiseau (48.7 o N, 2.2 o E) SIRTA Instrumentation LIDAR B-scat Lidar (532, 1064) Clouds, aerosols properties 1999 Ceilometer (KNMI) Cloud, BL Height 2002 IR Doppler Lidar (10.6 mm) 3D Wind 1999

314

ARM - Publications: Science Team Meeting Documents  

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

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

315

Section 32  

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

1 1 CART Raman Lidar Water Vapor Measurements During the ARM 1996 Water Vapor IOP D. D. Turner Pacific Northwest National Laboratory Richland, Washington J.E.M. Goldsmith Sandia National Laboratories Livermore, California Introduction Raman Lidar Calibration The first in a series of water vapor intensive operating periods Raman lidar systems detect selected species by measuring the (IOPs) was held during September 1996. These IOPs are wavelength shifted molecular return produced by Raman designed to address the recognized need, both within and scattering from the chosen molecules as a function of time outside the Atmospheric Radiation Measurement (ARM) since the laser's pulse. The ratioing of the water vapor and community, to improve the state-of-the-art in water vapor

316

P:\JODI\P113-137.WPD  

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

Figure 1. (a) Schematic diagram of idealized Raman Figure 1. (a) Schematic diagram of idealized Raman lidar system. (b) Signals produced by the primary species in the atmosphere. Implementation of Raman Lidar for Profiling of Atmospheric Water Vapor and Aerosols at the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) Site J.E.M. Goldsmith, F. H. Blair, and S. E. Bisson Sandia National Laboratories Livermore, California Introduction There are clearly identified scientific requirements for con- tinuous profiling of atmospheric water vapor at the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) site. Research conducted at several laboratories, including our work in a previous Atmospheric Radiation Measurement (ARM) Instrument Development Project, has demonstrated the suitability of Raman lidar for

317

1  

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

Recent Progress in CART Raman Lidar Measurements Recent Progress in CART Raman Lidar Measurements J. E. M. Goldsmith and T. P. Tooman Sandia National Laboratories Livermore, California R. A. Ferrare National Aeronautics and Space Administration Langley Research Center Hampton, Virginia D. D. Turner (a) Pacific Northwest National Laboratory Richland, Washington Introduction The Cloud and Radiation Testbed (CART) Raman Lidar was developed to provide continuous, automated vertical profiling of atmospheric water vapor, aerosols, and clouds. The system was delivered to the Southern Great Plains (SGP) CART site on September 13, 1995, and became operational on September 19, 1995. Routine operation of the system was delayed due to early laser reliability problems, but system reliability has increased dramatically with weekly uptimes in excess of

318

arm_stm_2008_borg_cirrus_poster.ppt  

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

Cirrus Cloud Characterization Cirrus Cloud Characterization with Raman Lidar Measurements at Southern Great Plains Lori Borg, David Turner, Robert Holz, David Tobin, Bob Knuteson, Leslie Moy, Daniel DeSlover, Ed Eloranta, Hank Revercomb (PI) Altitude [km] Radar + Lidar Heating Rate [deg/day] Altitude [km] Radar Heating Rate [deg/day] Altitude [km] MMCR Radar Reflectivity [dBZ] (color) with Lidar Boundaries (black) SGP Cirrus Case Study: 11/08/2005 18:00UTC - 11/11/2005 12:00 UTC Lori Borg, lori.borg@ssec.wisc.edu Introduction: Cirrus clouds play a significant role in the energy budget of the atmosphere and represent a major source of uncertainly in understanding climate and climate change. A large part of this uncertainty lies in the modeling of the cloud, which requires assumptions and

319

1  

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

Lidar-Based Retrievals of the Microphysical Properties of Lidar-Based Retrievals of the Microphysical Properties of Mixed-Phase Arctic Stratus Clouds and Precipitation G. de Boer and E. Eloranta The University of Wisconsin Madison, Wisconsin Abstract The University of Wisconsin Arctic High Spectral Resolution Lidar has acquired months of continuous measurements in two high Arctic locations. These measurements have been combined with those taken by a National Oceanic and Atmospheric Administration - Environmental Technological Laboratory millimeter wave cloud radar to establish a long-range data set of cloud microphysical property retrievals. These properties include effective particle size, number density, and water content. Examples from this data set for arctic stratus are reviewed here, along with the methodology used in the retrievals.

320

Method for tracking the location of mobile agents using stand-off detection technique  

DOE Patents [OSTI]

A method for tracking the movement and position of mobile agents using light detection and ranging (LIDAR) as a stand-off optical detection technique. The positions of the agents are tracked by analyzing the time-history of a series of optical measurements made over the field of view of the optical system. This provides a (time+3-D) or (time+2-D) mapping of the location of the mobile agents. Repeated pulses of a laser beam impinge on a mobile agent, such as a bee, and are backscattered from the agent into a LIDAR detection system. Alternatively, the incident laser pulses excite fluorescence or phosphorescence from the agent, which is detected using a LIDAR system. Analysis of the spatial location of signals from the agents produced by repeated pulses generates a multidimensional map of agent location.

Schmitt, Randal L. (Tijeras, NM); Bender, Susan Fae Ann (Tijeras, NM); Rodacy, Philip J. (Albuquerque, NM); Hargis, Jr., Philip J. (Albuquerque, NM); Johnson, Mark S. (Albuquerque, NM)

2006-12-26T23:59:59.000Z

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

ARM - Publications: Science Team Meeting Documents  

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

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

322

Comparison of the CALIPSO satellite and ground-based observations of cirrus clouds at the ARM TWP sites  

SciTech Connect (OSTI)

Statistics of ice cloud macrophysical and optical properties from the Cloud-Aerosol LIdar with Orthogonal Polarization (CALIOP) instrument on board the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite are compared with those from ground-based lidar observations over a 31 month period. Ground-based lidar observations are taken from the micropulse lidars (MPL) at the three Department of Energy Atmospheric Radiation Measurement (ARM) tropical western pacific (TWP) sites: Manus, Nauru and Darwin. CALIPSO observations show a larger cloud fraction at high altitudes while the ground-based MPLs show a larger cloud fraction at low altitudes. The difference in mean ice cloud top and base heights at the Manus and Nauru sites are all within 0.51 km, although differences are statistically significant. Mean ice cloud geometrical thickness agree to within 0.05 km at the Manus and Nauru sites. Larger differences exist at Darwin due to excessive degradation of the MPL output power during our sampling period. Both sets of observations show thicker clouds during the nighttime which may be real but could also be partially an artifact of the decreased signal-to-noise ratio during the daytime. The number of ice cloud layers per profile are also shown to be consistent after accounting for the difference in spatial resolution. For cloud optical depths, four different retrieval methods are compared, two for each set of observations. All products show that the majority of ice cloud optical depths ({approx}60%) fall below an optical depth of 0.2. For most comparisons all four retrievals agree to within the uncertainty intervals. We find that both CALIPSO retrievals agree best to ground-based optical depths when the lidar ratio in the latter is retrieved instead of set to a fixed value. Also thoroughly compared is the cloud properties for the subset of ice clouds which reside in the tropical tropopause layer (TTL).

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

2011-11-10T23:59:59.000Z

323

Research Highlight  

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

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

324

1  

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

Raman Lidar at Southern Great Plains: New Measurement Capabilities D. Petty and J. Comstock Pacific Northwest National Laboratory Richland, Washington D. Turner Space Science and Engineering Center University of Wisconsin Madison, Wisconsin J. Goldsmith Sandia National Laboratory Livermore, California Z. Wang University of Wyoming Laramie, Wyoming Introduction The Atmospheric Radiation Measurement Program (ARM) Raman Lidar (CARL) was designed and deployed for the purpose of collecting a long-term observational data set that can be used to study and improve the understanding of processes that affect atmospheric radiation and the description of these processes in climate models [1]. It operates as an unattended, turn-key system for profiling tropospheric

325

Slide 1  

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

and Amanda Bares and Amanda Bares Electrical and Computer Engineering, Cobleigh Halll Room 610, Montana State University, Bozeman, MT, 59717 Development and deployment of a compact eye-safe scanning differential absorption lidar (DIAL) for spatial mapping of carbon dioxide for monitoring/verification/accounting at geologic sequestration sites Project Number: DE-FE0001156 U.S. Department of Energy National Energy Technology Laboratory Carbon Storage R&D Project Review Meeting Developing the Technologies and Building the Infrastructure for CO 2 Storage August 21-23, 2012 * Program and Project Benefits * Technical Status - Brief Introduction to differential absorption lidar (DIAL) - DIAL instrument description - Experimental results * Program accomplishments and summary

326

Discussion Motivation  

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

Remote Sensors Summary Remote Sensors Summary * Instrumental capabilities * Scientific capabilities * Scientific needs * Measurement / community challenges and requirements Airborne Remote Sensors Summary (1) * Instrumental Capabilities: - Many active remote sensors (single- and multi-λ radar and lidar, polarization sensitive, elastic and molecular lidars) - Solar and IR radiation measurements (radiance and irradiance [direct and diffuse], broadband and spectrally resolved, polarized) - Microwave radiometers - Imagers - Small and large - Many different airframes - Various levels of maturity. Airborne Remote Sensors Summary (2) * Scientific Capabilities: - Location of cloud and aerosol layers - Profiles of aerosol extinction, backscatter, and polarization - Cloud extinction profiles for τ < 3 - Cloud phase determination

327

A study of a dual polarization laser backscatter system for remote identification and measurement of water pollution  

E-Print Network [OSTI]

with Experi- mental Data for the Depolarization Ratios from Gasoline and Kerosene on Turbid Water . . . . , . . . . . . . . . 101 XV ~Fi ure A-1 Lidar Polarimeter Electronic Control Unit ~Pa e 116 A-2 A-3 Lidar Polarimeter Electronic Connec- tions... for verti- cal transmit polarization is given by y?'?= F(TI)(l ? eXp(-2N p, L)) 2Pr (III- 10) Several observations can be made about (III-10) con- cerning the magnitude of the volume reflection coefficient relative to the mean depth L and the volume...

Sheives, Thomas Carlyle

2012-06-07T23:59:59.000Z

328

Microsoft Word - rl_handbook_v3_ARM-TR-038.doc  

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

8 8 Raman Lidar (RL) Handbook March 2009 R. K. Newsom Work supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research R. K. Newsom, March 2009, DOE/SC-ARM/TR-038 iii Contents 1. General Overview ............................................................................................................................... 1 2. Contacts ............................................................................................................................................... 1 2.1 Mentor ....................................................................................................................................... 1 2.2 Instrument Developer ................................................................................................................ 1

329

Session: Site assessment (CS4.4) Track: Scientific  

E-Print Network [OSTI]

in horizontal focus distances. Results: Half hour periods as functions of direction show that the wind speed observed as it was expected. Conclusion: We can measure profiles with a LiDAR both of the mean wind speed, the wind direction, and, with more uncertainty, the momentum flux in vertical scanning mode and simple

330

Prof. David Matthiesen, Ph.D. Faculty Director  

E-Print Network [OSTI]

capacity installed as of the end of 2011 and over 8,300 MW currently under construction in the U The WERC Center facilities include: A. Natural Power ZephIR · LiDAR wind measurement system B. NPS North

Rollins, Andrew M.

331

Hindawi Publishing Corporation Advances in Meteorology  

E-Print Network [OSTI]

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

Pu, Zhaoxia

332

Environmental Processes, Social Perspectives and Economic Valuations of the Coast  

E-Print Network [OSTI]

when we decided to storm chase in Matagorda 48 hrs prior to a disastrous hurricane with expensive LIDAR equipment in his brother?s car; ? Jace Stukey for trusting us with his car in Matagorda 48 hrs prior to a disastrous hurricane; ? Mark...

Williams, Amy M.

2011-10-21T23:59:59.000Z

333

Fast and Extensible Building Modeling from Airborne Qian-Yi Zhou  

E-Print Network [OSTI]

Fast and Extensible Building Modeling from Airborne LiDAR Data Qian-Yi Zhou University of Southern@graphics.usc.edu ABSTRACT This paper presents an automatic algorithm which recon- structs building models from airborne Li LiDAR(light detection and ranging), building modeling, seg- mentation, building footprints 1

Southern California, University of

334

Sean C. Ahearn, Ph.D. Department of Geography Hunter College, The Doctoral Program in Earth and Environmental  

E-Print Network [OSTI]

and potential applications of high density LiDAR data for the City of New York" , Proceedings American Society Research". $409,000. 2. US Department of Energy. 2010-11. Co-PI. "NYC Solar Map", Directed development and Environmental Sciences, City University of New York; and Director: Center for Advanced Research of Spatial

Frei, Allan

335

Agenda for 2014 Meeting of MSRL March 3-7, 2014  

E-Print Network [OSTI]

of the Niobrara shale: Bob Loucks 9:00 AM Tuscaloosa marine shale: organic matter pore and oil generation: Jiemin continuity from Lidar imaging: Boquillas Fm, West Texas: Greg Frebourg · CH4 Adsorption on Oil-Bearing Shales 2:00 PM Application of HIM analysis in shale characterization: JJ Yang (Zeiss) 2:30 PM

Texas at Austin, University of

336

Curriculum Vitae Sagar Prasad Parajuli SAGAR PRASAD PARAJULI  

E-Print Network [OSTI]

development and agricultural roads (DoLIDAR), Lalitpur, Nepal Surveyed, designed and implemented infrastructure projects in buildings, water supply, agricultural roads and trail bridges at local level as per PROFESSIONAL/TECHNICAL TRAININGS SimaPro: Life Cycle Assessment (LCA) Software Mar. 2011 Masdar Institute, Abu

Yang, Zong-Liang

337

Ris-R-Report Flow distortion on boom mounted cup  

E-Print Network [OSTI]

of this magnitude are severely problematic in the measurement of wind turbine power performance, wind resource assessment and for providing purposeful in-field comparisons between different sensors, e.g. lidar: References: 9 Information Service Department Risø National Laboratory for Sustainable Energy Technical

338

Atmos. Chem. Phys., 8, 40194026, 2008 www.atmos-chem-phys.net/8/4019/2008/  

E-Print Network [OSTI]

been conducted in recent years with two different LIDAR systems at Paramaribo (5.8 N, 55.2 W), Suriname at Paramaribo (5.8 N, 55.2 W), Suriname we showed recently that cirrus clouds form in situ and effectively

Meskhidze, Nicholas

339

Arctic Air Pollution: Origins and Impacts  

Science Journals Connector (OSTI)

...boreal forest fires may also be important...boreal forest fire emissions or possible...Equinox (TOPSE) airborne campaign clearly...measured by airborne lidar, during deployments...estimates for the fraction of ozone originating...related to the rapid release of bromine radicals...boreal forest fire emissions...

Kathy S. Law; Andreas Stohl

2007-03-16T23:59:59.000Z

340

7,511,624 Wind Energy Overview: Device for monitoring the balance and integrity of wind turbine blades either in  

E-Print Network [OSTI]

oscillations (including imbalances and tracking variations) in wind turbine blades. This technology was tested covering the RPM rate of any wind turbine blade. This invention directly targets the operational monitoring://tto.montana.edu/technologies Technology Available for License In-Field LIDAR Monitoring and Manufacturing Control of Wind Turbine Montana

Maxwell, Bruce D.

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

Polytechnic School of Engineering 6 MetroTech Center  

E-Print Network [OSTI]

:%Hyperspectral,%RADAR,%LIDAR,%Gravity,%Magne8c,%... ManhaHan%in%the%Thermal%IR 199&Water&Street% Built%1993%::%998,000%sq%k% electricity,%natural%gas%must%be%beHer%for%global%issues% · Individual%ci8es%need%to%be%"best"%for%compe88veness%in%talent,% capital,%...% ­ Be

Tanaka, Jiro

342

Ann. Geophys., 24, 807821, 2006 www.ann-geophys.net/24/807/2006/  

E-Print Network [OSTI]

smaller and less absorbing population of particles with a lidar ratio of 20 sr. Mixing of polluted air of aerosol. The extinction-to-backscatter ratio deter- mined on the 30 August 2003 at Thessaloniki evolution and was not mixed with the boundary layer aerosols mainly originating from local pollution

343

Passive Tomography of Turbulence Strength Marina Alterman1  

E-Print Network [OSTI]

expensive. Turbulence significantly affects the efficiency of wind turbine #12;2 M. Alterman, Y. Y), wind, and atmospheric stability. This is measured using special Doppler lidars [9, 31], which are very. Schechner, M. Vo and S. G. Narasimhan farms [31], hence optimizing turbines and farms involves measuring TS

Sheikh, Yaser Ajmal

344

Landslide Inventory in the Area of Dubra?ina River Basin (Croatia)  

Science Journals Connector (OSTI)

Systematic landslide mapping was performed for an area of 9.35 km2 of the geomorphological unit of hills in the Dubra?ina River Basin. Based on the visual interpretation of LiDAR imagery, supplemented by field re...

Petra ?omlija; Sanja Bernat…

2014-01-01T23:59:59.000Z

345

Annual Report of the EURATOM/CCFE Fusion Programme 2009/10 8 ITER Systems  

E-Print Network [OSTI]

and building to start in 2010. Fusion for Energy (F4E), the European domestic agency, which has to deliver and the ancillary buildings was completed at Cadarache in the south of France, and is now ready for excavations cyclotron resonance heating (ICRH) system; · Neutral beam injection system; · Core LIDAR Thompson scattering

346

Combined CloudSatCALIPSOMODIS retrievals of the properties of ice clouds  

E-Print Network [OSTI]

March 2010; published 21 July 2010. [1] In this paper, data from spaceborne radar, lidar and infrared radiometers on the "ATrain" of satellites are combined in a variational algorithm to retrieve ice cloud the impact of the microphysical assumptions on the algorithm when radiances are not assimilated by evaluating

Hogan, Robin

347

Seasonal variations of semidiurnal tidal perturbations in mesopause region temperature and zonal and meridional winds above  

E-Print Network [OSTI]

.1029/2007JD009687. 1. Introduction [2] Solar thermal tides are global-scale waves that dom- inate to conserve wave energy. When propagating into the MLT region, the horizontal wind tidal amplitude can reach with fluorescence lidar's advantages of high temporal and spatial resolution and the capability of full diurnal

348

Increasing output energy from a passively Q-switched Er:glass laser  

E-Print Network [OSTI]

designators, laser range finders, wind metrology, LIDARs, and communication [8­10]. Passive Q- switches have many advantages over active ones. These include low cost, compact size and weight, robustness, and high are passively Q-switched, only the lowest spatial mode can develop. Attempts to increase the pump power in order

Friesem, Asher A.

349

Deposiiopn(g*m-2) Overview of the Project ChArMEx activities  

E-Print Network [OSTI]

Combines the most recent work on emissions of primary aerosol and trace gas aerosol precursors: http, aerosol chemistry (AMS, bulk aerosol filter and cascade impactor samples), and aerosol physics (number angle provides a particle nature index Lidar network assimilation test From 9 July 2012, 06 UT on, 9

Menut, Laurent

350

From sedimentary records to sediment budgets: Multiple approaches to catchment sediment flux  

E-Print Network [OSTI]

From sedimentary records to sediment budgets: Multiple approaches to catchment sediment flux.M., Germany Abstract This paper reviews the traditional approach to sediment budget studies in geomorphology sensing (LiDAR), geophysics and sediment-based dating techniques for flux rate estimation. The precision

Paris-Sud XI, Université de

351

Bioluminescence in a complex coastal environment: 1. Temporal dynamics of nighttime water-leaving radiance  

E-Print Network [OSTI]

in intensity and spectral quality of water-leaving radiance provide suitable ranges for assessing detection light, which often leads to brilliant displays in the wakes of ships, in breaking waves, or even around method (as opposed to active methods such as RADAR or LIDAR) of identifying hostile ships, submarines

Moline, Mark

352

Biogeosciences, 9, 179191, 2012 www.biogeosciences.net/9/179/2012/  

E-Print Network [OSTI]

and spaceborne LiDAR in Lop�e National Park, Gabon: overcoming problems of high biomass and persistent cloud E. T, California, USA 3Agence Nationale des Parcs Nationaux, Libreville, Gabon 4School of Natural Sciences, Libreville, Gabon 6Earth and Biosphere Institute, School of Geography, University of Leeds, UK 7Grantham

Lefsky, Michael

353

High-power Er:YAG laser for coherent laser radar  

Science Journals Connector (OSTI)

We report the development of a high-power Er:YAG laser with high pulse energy for coherent lidar wind sensing. The 1.645 um Er:YAG laser produced a Q-switched pulse energy of 16 mJ...

Stoneman, Robert C; Malm, Andrew I R

354

Effectsof ice-crystal structure on halo formation: cirrus cloud  

E-Print Network [OSTI]

Effectsof ice-crystal structure on halo formation: cirrus cloud experimental and ray campaign, four 220halo-producing cirrus clouds were studied jointly from a ground- based polarization lidar of the aircraft, which collecteda total of 84slides byimpaction, preserving the ice crystals for later microscopic

Takano, Yoshihide

355

Session: Poster Session + Poster Award + Scientific Award + Excellent young wind doctor award (PO.202) Track: Technical  

E-Print Network [OSTI]

tower-mounted instruments. Typical turbine hub heights are now in excess of 70m. For such machinesSession: Poster Session + Poster Award + Scientific Award + Excellent young wind doctor award (PO.202) Track: Technical COMMERCIAL LIDAR PROFILERS FOR WIND ENERGY. A COMPARATIVE GUIDE. (abstract

356

CX-100075: Categorical Exclusion Determination  

Office of Energy Efficiency and Renewable Energy (EERE)

Unobtrusive Multi-static Serial LiDAR Imager (UMSLI) for Wide-area Surveillance and Identificaiton of Marine Life at MHK Installations Award: DE-EE0006787 CX(s) Applied: A9, B3.6 Water Power Program Date: 09/23/2014 Location(s): Florida Office(s): Golden Field Office

357

The Interruption of Alpine Foehn by a Cold Front. Part I: Observations  

E-Print Network [OSTI]

propagation speed wf 1 m/s Inclination of the frontal surface is wf /uf 1/7.5 8° Freitag (1990 in valleys Interaction with local winds (e.g., foehn) foehn cold front Cold front in complex terrain ? ? #12 in Inn and Wipp Valley Temperature slope profile Doppler wind lidar in Wipp Valley #12;6 of 13 Case study

Gohm, Alexander

358

Session: Poster Session + Poster Award + Scientific Award + Excellent young wind doctor award (PO.206) Track: Technical  

E-Print Network [OSTI]

Session: Poster Session + Poster Award + Scientific Award + Excellent young wind doctor award (PO the erection of masts equipped with calibrated cup or sonic anemometers. In order to reduce costs associated, the mean horizontal wind speed measured with a LiDAR shows very good comparison to cup anemometers. However

359

Light Scattering by Ice Crystals and Mineral Dust Aerosols in the Atmosphere  

E-Print Network [OSTI]

of cirrus clouds is demonstrated and explained theoretically, which provides guidance in the calibra¬tion algorithm for 1.064-µm channel on the Calipso lidar. Dust aerosols have no particular morphology. To develop an approach to modeling the optical...

Bi, Lei

2012-07-16T23:59:59.000Z

360

Shape-induced gravitational sorting of Saharan dust during transatlantic voyage: Evidence from CALIOP  

E-Print Network [OSTI]

Shape-induced gravitational sorting of Saharan dust during transatlantic voyage: Evidence from of Saharan dust from June to August 2007. Observing along a typical transatlantic dust track, we find that (1 of Saharan dust during transatlantic voyage: Evidence from CALIOP lidar depolarization measurements, Geophys

Kostinski, Alex

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


361

First estimates of mass concentrations from Eyjafjll over The Netherlands using PCA on  

E-Print Network [OSTI]

First estimates of mass concentrations from Eyjafjöll over The Netherlands using PCA on multi The Netherlands a limit has been proposed of 1 mg m-3. Here, we present preliminary results from Raman lidar measurements made in central Netherlands. A first estimate of the maximum mass loading that occurred over

Graaf, Martin de

362

A Study on the Effect of Nudging on Long-Term Boundary Layer Profiles of Wind and Weibull Distribution Parameters in a Rural Coastal Area  

Science Journals Connector (OSTI)

By use of 1 yr of measurements performed with a wind lidar up to 600-m height, in combination with a tall meteorological tower, the impact of nudging on the simulated wind profile at a flat coastal site (Høvsøre) in western Denmark using the ...

S.-E. Gryning; E. Batchvarova; R. Floors

2013-05-01T23:59:59.000Z

363

Cassandra Wheeler Univ. of Colorado Department of Atmospheric and Oceanic Sciences (ATOC)  

E-Print Network [OSTI]

on the energy budget NOAA's Contribution: Remotely observe cloud layers and environmental conditions Svalbard, Norway 85 °N 0 °E Greenland Location: 87°N Duration: 1 Aug ­15 Sept 2008 Platform : Swedish Icebreaker Oden #12;Ka-Band Radar S-Band Radar Wind Profiler Scanning Radiometer Lidar Ceilometer 2-Channel

364

Gravity waves in the arctic mesosphere during the MaCWAVE/MIDAS summer rocket program  

E-Print Network [OSTI]

wavelength consistent with the mean wind gradient, but it is unclear whether it was a single wave and energy that drives a mean meridi- onal circulation in the mesosphere and lower thermosphere, causing the Andøya Rocket Range in northern Norway with ground-based lidar and radar measurements from the nearby

365

EXTENSION OF AN AUTOMATIC BUILDING EXTRACTION TECHNIQUE TO AIRBORNE LASER SCANNER DATA CONTAINING DAMAGED BUILDINGS  

E-Print Network [OSTI]

EXTENSION OF AN AUTOMATIC BUILDING EXTRACTION TECHNIQUE TO AIRBORNE LASER SCANNER DATA CONTAINING DAMAGED BUILDINGS F. Tarsha-Kurdi a , M. Rehor b , T. Landes a , P. Grussenmeyer a , H.-P. Bähr b-peter.baehr)@ipf.uni-karlsruhe.de KEY WORDS: Laser scanning, LIDAR, Point Cloud, DSM, Segmentation, Extraction, Building, Disaster

Paris-Sud XI, Université de

366

Tracking Dynamic Boundary Fronts using Range Sensors  

E-Print Network [OSTI]

are being deployed for real-time monitoring applica- tions, such as detecting leakage of hazardous material location whereas in the latter approach a sensor finds approximate distance to a remote location where degrees and gather reflec- tivity and wind velocity information. Lidars (LIght Detection and Ranging

Ramamritham, Krithi

367

3-D MAPPING TECHNOLOGIES FOR HIGH LEVEL WASTE TANKS  

SciTech Connect (OSTI)

This research investigated four techniques that could be applicable for mapping of solids remaining in radioactive waste tanks at the Savannah River Site: stereo vision, LIDAR, flash LIDAR, and Structure from Motion (SfM). Stereo vision is the least appropriate technique for the solids mapping application. Although the equipment cost is low and repackaging would be fairly simple, the algorithms to create a 3D image from stereo vision would require significant further development and may not even be applicable since stereo vision works by finding disparity in feature point locations from the images taken by the cameras. When minimal variation in visual texture exists for an area of interest, it becomes difficult for the software to detect correspondences for that object. SfM appears to be appropriate for solids mapping in waste tanks. However, equipment development would be required for positioning and movement of the camera in the tank space to enable capturing a sequence of images of the scene. Since SfM requires the identification of distinctive features and associates those features to their corresponding instantiations in the other image frames, mockup testing would be required to determine the applicability of SfM technology for mapping of waste in tanks. There may be too few features to track between image frame sequences to employ the SfM technology since uniform appearance may exist when viewing the remaining solids in the interior of the waste tanks. Although scanning LIDAR appears to be an adequate solution, the expense of the equipment ($80,000-$120,000) and the need for further development to allow tank deployment may prohibit utilizing this technology. The development would include repackaging of equipment to permit deployment through the 4-inch access ports and to keep the equipment relatively uncontaminated to allow use in additional tanks. 3D flash LIDAR has a number of advantages over stereo vision, scanning LIDAR, and SfM, including full frame time-of-flight data (3D image) collected with a single laser pulse, high frame rates, direct calculation of range, blur-free images without motion distortion, no need for precision scanning mechanisms, ability to combine 3D flash LIDAR with 2D cameras for 2D texture over 3D depth, and no moving parts. The major disadvantage of the 3D flash LIDAR camera is the cost of approximately $150,000, not including the software development time and repackaging of the camera for deployment in the waste tanks.

Marzolf, A.; Folsom, M.

2010-08-31T23:59:59.000Z

368

Research Highlight  

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

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

369

Research Highlight  

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

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

370

ARM - Measurement - Aerosol optical depth  

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

depth depth ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Aerosol optical depth A measure of how much light aerosols prevent from passing through a column of atmosphere. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments HSRL : High Spectral Resolution Lidar MPL : Micropulse Lidar MFRSR : Multifilter Rotating Shadowband Radiometer NIMFR : Normal Incidence Multifilter Radiometer Field Campaign Instruments AOS-PMFOV : Acoustical Optical Spectrometer-Photometer with Multiple

371

ARM - Datastreams - dlrhi  

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

Datastreamsdlrhi Datastreamsdlrhi Documentation Data Quality Plots Citation DOI: 10.5439/1046188 [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Datastream : DLRHI Doppler LIDAR Range-Height Indicator scan Active Dates 2011.07.21 - 2012.03.31 Measurement Categories Aerosols, Cloud Properties Originating Instrument Doppler Lidar (DL) Measurements Only measurements considered scientifically relevant are shown below by default. Show all measurements Measurement Units Variable Altitude above mean sea level m alt Backscattered radiation Attenuated backscatter 1/(m sr) attenuated_backscatter ( time, range ) Azimuth relative to true north degrees azimuth ( time ) Base time in Epoch seconds since 1970-1-1 0:00:00 0:00 base_time

372

zuev(1)-99.PDF  

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

Statistical Characteristics of One- and Two-Layer Statistical Characteristics of One- and Two-Layer Cloudiness Based on Laser Sounding Data V. V. Zuev, V. D. Burlakov, and A. V. El'nikov Institute of Atmospheric Optics Tomsk, Russia Introduction Earlier lidar observations of the middle- and high-level clouds, conducted as part of the Atmospheric Radiation Measurement (ARM) Program, frequently revealed a significant relationship between the cloud layers, including those located at different atmospheric levels. At the same time, current models of solar radiative transfer in two-layer clouds a priori assume a statistical independence of cloud layers; so of primary concern here was to study possible causes for such a relationship and potential conditions for its breakdown. Studies were performed at the Siberian lidar station of the Institute of Atmospheric Optics, and the

373

whiteman-98.pdf  

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

9 9 Comparison of Measurements by the NASA/GSFC Scanning Raman Lidar and the DOE/ARM CART Raman Lidar D. N. Whiteman and G. Schwemmer NASA-Goddard Space Flight Center Greenbelt, Maryland D. D. Turner Pacific Northwest National Laboratory Richland, Washington K. D. Evans, B. B. Demoz, S. H. Melfi, M. Cadirola, and S. Wise Joint Center for Earth Systems Technology Baltimore, Maryland R. A. Ferrare NASA-Langley Research Center Hampton, Virginia J. E. M. Goldsmith and T. P. Tooman Sandia National Laboratories Livermore, California Introduction Latent heat transfer through evaporation and condensation of water vapor is the most important energy transport mech- anism in the atmosphere. In addition, water vapor is the most active greenhouse gas. Any global warming scenario

374

Testing a Cloud Condensation Nuclei Remote Sensing Method  

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

a Cloud Condensation Nuclei a Cloud Condensation Nuclei Remote Sensing Method S. J. Ghan Climate Dynamics Group Pacific Northwest National Laboratory Richland, Washington Introduction Under certain conditions vertical profiles of cloud condensation nuclei (CCN) spectra can be retrieved from ground-based measurements. Surface measurements of the CCN spectrum are scaled by the ratio of the backscatter (or extinction) profile to the surface backscatter (or extinction). The backscatter (or extinction) profile is measured by Raman lidar, and is corrected to dry conditions using the vertical profile of relative humidity (also measured by Raman Lidar) and surface measurements of the dependence of backscatter (or extinction) on relative humidity. This method should be accurate up to

375

Section 36  

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

7 7 Cloud and Aerosol Height Distribution Retrieval and Analysis Employing Continuous Operation Lidar Data J. D. Spinhirne, D. L. Hlavka and V. S. Scott NASA/Goddard Space Flight Center Greenbelt, Maryland A. E. Galbraith and J. A. Reagan University of Arizona Tucson, Arizona Introduction Instrument New technology now permits ground-based lidar to operate The basis of the MPL design is the use of lasers with high full time and profile all significant aerosol and cloud structure pulse repetition frequencies (PRF) and low pulse energies. of the atmosphere up to the limit of signal attenuation. Such When highly efficient optics, filters, and detectors are used, it systems are in operation at U.S. Department of Energy (DOE) is possible to obtain profiling of all significant cloud and aero-

376

Haef_poster.ppt  

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

TOWARDS A GLOBAL CLIMATOLOGY OF OPTICALLY THIN CLOUDS DERIVED FROM TOWARDS A GLOBAL CLIMATOLOGY OF OPTICALLY THIN CLOUDS DERIVED FROM NETWORKS OF GROUND-BASED LIDARS HAEFFELIN M. (1) , DUPONT J-C. (2) , KECKHUT P. (3) , MORILLE Y. (2) , NOËL V. (2) (1)Institut Pierre-Simon Laplace, Paris, FRANCE. (2) Laboratoire de Météorologie Dynamique, Palaiseau, France (3) Service d'Aéronomie, Paris, France CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) Introduction Over 100 Lidar stations can be found around the globe. Only few are equipped with fully automated systems, but several networks have gathered 5-10 years records from routine observations. Lon g time series can be used to derive statistics of cloud vertical distributions clouds and their corresponding optical properties. Regional statistics are compared to Level-2 product retrievals from CALIOP observations

377

X:\ARM_19~1\P283-315.WPD  

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

Figure 1. Observations of water vapor mixing ratio profiles by the GSFC Scanning Raman Lidar on Figure 1. Observations of water vapor mixing ratio profiles by the GSFC Scanning Raman Lidar on 15 April during the 1994 ARM RCS IOP. Observations of a Cold Front With Strong Vertical Undulations During the ARM RCS-IOP D. O'C. Starr and D. N. Whiteman G. Mace National Aeronautics and Space Administration The Pennsylvania State University Goddard Space Flight Center University Park, Pennsylvania Greenbelt, Maryland S. H. Melfi University of Utah University of Maryland-Baltimore County Salt Lake City, Utah Baltimore, Maryland A. R. Lare Sandia National Laboratories Applied Research Livermore, California Landover, Maryland R. A. Ferrare, B. Demoz, and K. D. Evans Hughes STX Lanham, Maryland K. Sassen S. E. Bisson and J.E.M. Goldsmith Passage of a cold front was observed on the night of

378

ARM - Facility News Article  

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

August 15, 2010 [Facility News] August 15, 2010 [Facility News] Micropulse Lidars Get Boost from Recovery Act Bookmark and Share Shown here during installation on the aft deck of the RV Connecticut, the upgraded MPL includes a sleek new computer that can fit into smaller spaces. The laser window at the top is covered by a cone until the instrument is turned on. Shown here during installation on the aft deck of the RV Connecticut, the upgraded MPL includes a sleek new computer that can fit into smaller spaces. The laser window at the top is covered by a cone until the instrument is turned on. Through funding from the American Recovery and Reinvestment Act of 2009, ARM is upgrading the micropulse lidars (MPL) throughout the user facility. Similar to a radar, the MPL sends pulses of energy into the atmosphere.

379

Microsoft PowerPoint - KLEIN_ARM_STM08_POSTER.ppt  

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

average both SCMs average both SCMs and CRMs underestimate the amount of supercooled water by a factor of 3. Models simulations of ice water path are more consistent with observations. Liquid Water Path Versus Ice Water Path Liquid Water Path Versus Ice Water Path liquid water path (g m -2 ) ice water path (g m -2 ) 171 A = Aircraft S = Radar/Lidar retrievals (Shupe) W = Radar/Lidar retrievals (Wang) Observational Uncertainty Rectangle Symbol Key for Models Symbol Key for Observations LLNL-POST-401952 This work is supported by the Office of Science of the United States Department of Energy as part of the ARM program. This work was performed under the auspices of the U. S. Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. Co-Authors Andy Ackerman, Alex Avramov, Gijs

380

Section 88  

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

5 5 Scanning Raman Lidar Measurements of Water Vapor and Aerosols During the Tropical Aerosol Radiative Forcing Observational Experiment and the Water Vapor Intensive Operations Period S. H. Melfi and K. D. Evans University of Maryland, Baltimore, Maryland R. A. Ferrare and B. Demoz Hughes STX Corporation, Lanham, Maryland G. Schwemmer, D. Whiteman, and D. O.'C Starr NASA/Goddard Space Flight Center Greenbelt, Maryland R. G. Ellingson University of Maryland, College Park, Maryland Introduction The National Aeronautics and Space Administration/Goddard Space Flight Center (NASA/GSFC) Scanning Raman Lidar (SRL) recently participated in two field experiments: TARFOX (Tropospheric Aerosol Radiative Forcing Observational Experiment) held at Wallops Flight Facility in July 1996, and the First Water Vapor Intensive Operations

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

Section 74  

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

Comparisons of the Micropulse Lidar and the Belfort Comparisons of the Micropulse Lidar and the Belfort Laser Ceilometer at the Atmospheric Radiation Measurement Southern Great Plains Cloud and Radiation Testbed Site D.D. Turner Pacific Northwest National Laboratory Richland, Washington Introduction The general goal of the Atmospheric Radiation Measurement (ARM) Program is to improve general circulation and related models of the atmosphere for global and regional prediction (DOE 1990). In order to achieve this goal, the ARM Program is collecting a prodigious volume of data at its first Cloud and The time period selected to do the comparisons between the Radiation Testbed (CART) in the Southern Great Plains of the instruments was April 4, 1994, through May 8, 1994. In this United States. Some quantities, such as cloud base height, can

382

1  

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

LIRAD Analysis of TWP Cirrus at Nauru LIRAD Analysis of TWP Cirrus at Nauru R. T. Austin, C. Mitrescu, and G. L. Stephens Department of Atmospheric Science Colorado State University Fort Collins, Colorado Introduction The purpose of this work is to implement algorithms for retrieval of high-cloud emittance and optical depth using lidar-radiometer (LIRAD) analysis based on available continuous data streams from the Atmospheric Radiation Measurement (ARM) Program's Cloud and Radiation Testbed (CART) sites. Routine, continuous operation of the micropulse lidar (MPL), infrared thermometer (IRT), microwave radiometer (MWR), and frequent sonde soundings should allow for near-continuous retrieval of LIRAD products, subject to time and accuracy limitations described later in this paper. Initial development of

383

ARM - Datastreams - dlcal1  

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

Datastreamsdlcal1 Datastreamsdlcal1 Documentation Data Quality Plots Citation DOI: 10.5439/1025183 [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Datastream : DLCAL1 Doppler Lidar - calibration channel 1 Active Dates 2010.10.30 - 2010.12.21 Measurement Categories Aerosols, Cloud Properties Originating Instrument Doppler Lidar (DL) Measurements Only measurements considered scientifically relevant are shown below by default. Show all measurements Measurement Units Variable Altitude above mean sea level m alt Backscattered radiation Attenuated backscatter 1/(m sr) attenuated_backscatter ( time, range ) Azimuth relative to true north degrees azimuth ( time ) Base time in Epoch seconds since 1970-1-1 0:00:00 0:00 base_time

384

Microsoft PowerPoint - ARMST2009.shupeposter.ppt [Compatibility Mode]  

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Spring and Fall Arctic Mixed-Phase Clouds: Spring and Fall Arctic Mixed-Phase Clouds: Perspectives from the surface during ISDAC and MPACE Matthew Shupe a , David Turner b , Ed Eloranta b , Pavlos Kollias c p a CIRES - University of Colorado and NOAA/ESRL, b University of Wisconsin- Madison, c McGill University Summary Cloud Boundaries -Cloud top identified using radar, cloud base identified using high spectral resolution lidar or ceilometer. Phase Classification Uses phase specific signatures from radar lidar microwave radiometer and radiosonde measurements (Shupe GRL 2007) Retrieval Methods Analysis involves 6 weeks of single-layer, stratiform, mixed-phase cloud observations from the NSA site during MPACE (Sept-Nov 2004) and ISDAC (April-May 2008)  Similar structure and processes occur in Arctic stratiform

385

Posters Cloud Microphysical and Radiative Properties Measured  

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7 7 Posters Cloud Microphysical and Radiative Properties Measured by Combined Lidar, Radar, and Infrared Radiometer W. L. Eberhard and J. M. Intrieri National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado K. P. Chan and G. Feingold Cooperative Institute for Research in Environmental Sciences Boulder, Colorado also an order of magnitude smaller. These features make simple approximations in scattering calculations adequate for some applications, e.g., Eberhard (1993a). They also provide some unique capabilities, especially the technique described below for measuring drop sizes. One of the four IDP tasks is to characterize cloud signatures obtained by CO 2 lidar. For instance, our earlier work discovered that depolarization from ice particles was almost

386

ARM - Publications: Science Team Meeting Documents  

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

387

1  

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Aerosol Lidar Validation Experiment - ALIVE Aerosol Lidar Validation Experiment - ALIVE B. Schmid and N.-N. Truong Bay Area Environmental Research Institute Sonoma, California R. Ferrare and M. Clayton National Aeronautics and Space Administration/Langley Research Center Hampton, Virginia D. Turner University of Wisconsin Madison, Wisconsin C. Flynn, A. Mendoza, D. Petty, and L. Roeder Pacific Northwest National Laboratory Richland, Washington B. Cairns and K. Knobelspiesse Columbia University New York, New York R. Dominguez, W. Gore, R. Johnson, and P. Russell National Aeronautics and Space Administration/Ames Research Center Moffett Field, California D. Groff Atmospheric Radiation Measurement Program, Southern Great Plains Ponca City, Oklahoma B.R. Herman City University of New York

388

ARM - Datastreams - dlrhi2  

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Datastreamsdlrhi2 Datastreamsdlrhi2 Documentation Data Quality Plots Citation DOI: 10.5439/1025188 [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Datastream : DLRHI2 Doppler Lidar - Range-Height Indicator #2 Active Dates 2010.10.21 - 2010.11.21 Measurement Categories Aerosols, Cloud Properties Originating Instrument Doppler Lidar (DL) Measurements Only measurements considered scientifically relevant are shown below by default. Show all measurements Measurement Units Variable Altitude above mean sea level m alt Backscattered radiation Attenuated backscatter 1/(m sr) attenuated_backscatter ( time, range ) Azimuth relative to true north degrees azimuth ( time ) Base time in Epoch seconds since 1970-1-1 0:00:00 0:00 base_time

389

ARM - VAP Product - 10rlprofbe1turn  

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turn turn Documentation Data Management Facility Plots (Quick Looks) Citation DOI: 10.5439/1027251 [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Example 10rlprofbe1turn Data Plot Example 10rlprofbe1turn data plot VAP Output : 10RLPROFBE1TURN Raman LIDAR (RL): Best-estimate state of the atmos. profiles from RL & AERI+GOES retrievals Active Dates 1998.03.01 - 2004.01.06 Originating VAP Process Raman LIDAR Vertical Profiles : RLPROF Measurements The measurements below provided by this product are those considered scientifically relevant. Aerosol optical depth Aerosol scattering Backscatter depolarization ratio Backscattered radiation Cloud base height Liquid water content

390

ARM - PI Product - Cloud Properties and Radiative Heating Rates for TWP  

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ProductsCloud Properties and Radiative Heating Rates for ProductsCloud Properties and Radiative Heating Rates for TWP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Product : Cloud Properties and Radiative Heating Rates for TWP 2002.01.01 - 2012.02.08 Site(s) TWP General Description A cloud properties and radiative heating rates dataset is presented where cloud properties retrieved using lidar and radar observations are input into a radiative transfer model to compute radiative fluxes and heating rates at three ARM sites located in the Tropical Western Pacific (TWP) region. The cloud properties retrieval is a conditional retrieval that applies various retrieval techniques depending on the available data, that is if lidar, radar or both instruments detect cloud. This Combined Remote

391

ARM - Measurement - Cloud base height  

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base height base height ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Cloud base height For a given cloud or cloud layer, the lowest level of the atmosphere where cloud properties are detectable. Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments BLC : Belfort Laser Ceilometer MPL : Micropulse Lidar MWRP : Microwave Radiometer Profiler RL : Raman Lidar VCEIL : Vaisala Ceilometer External Instruments NOAASURF : NOAA Surface Meteorology Data, collected by NWS and NCDC

392

Slide 1  

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Benjamin Soukup, and Amanda Bares Benjamin Soukup, and Amanda Bares Electrical and Computer Engineering, Cobleigh Halll Room 610, Montana State University, Bozeman, MT, 59717 Development and deployment of a compact eye-safe scanning differential absorption lidar (DIAL) for spatial mapping of carbon dioxide for monitoring/verification/accounting at geologic sequestration sites Project Number: DE-FE0001156 U.S. Department of Energy National Energy Technology Laboratory Carbon Storage R&D Project Review Meeting Developing the Technologies and Building the Infrastructure for CO 2 Storage August 20-22, 2013 * Program and Project Benefits * Technical Status - Brief Introduction to differential absorption lidar (DIAL) - DIAL instrument description - Experimental results * Program accomplishments and summary

393

Research Highlight  

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

394

20080310arm2008_norfolk_pos.ppt  

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

Introduction: Introduction: An active remote-sensing using radar and/or lidar can provide the vertical structure of cloud properties. Okamoto et al. [2007] showed the vertical cloud structure over the Pacific Ocean near Japan using radar and lidar on the Research Vessel Mirai during MR01/K02 cruise (May 2001). This study reports the substitute result by a nest-grid simulation using a three dimensional non-hydrostatic model with a spectral bin microphysics for clouds. Model Description: A numerical model for atmospheric dynamics used in this study is based on a multi-purpose non-hydrostatic atmospheric model developed by the Japan Meteorological Agency (JMA-NHM) [Saito et al., 2006]. We replaced the original bulk-type cloud microphysical scheme with a bin-type

395

ARM - Instrument - hsrl  

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govInstrumentshsrl govInstrumentshsrl Documentation HSRL : Instrument Mentor Monthly Summary (IMMS) reports HSRL : Data Quality Assessment (DQA) reports ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : High Spectral Resolution Lidar (HSRL) Beneficiary of Recovery Act funding. Instrument Categories Aerosols, Cloud Properties The High Spectral Resolution Lidar (HSRL ) provides calibrated measurements of aerosol optical depth, volume backscatter coefficient, cross section, and depolarization. Measurements are computed from ratios of the particulate scattering to the measured molecular scattering. This provides absolute calibration and makes the calibration insensitive to dirt or precipitation on the output window. A very narrow, angular field-of-view

396

ARM - Field Campaign - COPS - Initiation of Convection and the  

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govCampaignsCOPS - Initiation of Convection and the Microphysical govCampaignsCOPS - Initiation of Convection and the Microphysical Properties of Clouds in Orographic Terrain Campaign Links AMF Black Forest Deployment Related Campaigns COPS - AOS Intercomparison 2007.08.09, Jefferson, AMF COPS - ADMIRARI at Black Forest 2007.07.30, Battaglia, AMF COPS - University of Cologne Micromet Station 2007.07.23, Schween, AMF COPS - Cloud Microwave Validation Experiment in Support of CLOWD 2007.06.22, Vogelmann, AMF COPS - WILI Coherent Doppler Wind Lidar at Black Forest 2007.05.10, Althausen, AMF COPS - Multi Wavelength Raman Lidar (MWL) at Black Forest 2007.05.10, Althausen, AMF COPS - 35.5 GHz Cloud Radar Comparison at Black Forest 2007.05.01, Handwerker, AMF COPS - HATPRO at Black Forest 2007.04.01, Crewell, AMF COPS - Micro-Rain Radar at Black Forest

397

1  

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

NASA/GSFC Scanning Raman Lidar Participation NASA/GSFC Scanning Raman Lidar Participation in WVIOP2000 and AFWEX D. N. Whiteman, B. B. Demoz, and K. D. Evans, National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland P. Di Girolamo and D. O'C. Starr, Department of Environmental Engineering and Physics University of Basilicata Potenza, Italy T. Berkoff Goddard Earth Sciences and Technology Center University of Maryland Balitmore, Maryland J. E. M. Goldsmith and T. P. Tooman Sandia National Laboratories Livermore, California J. M. Comstock and D. D. Turner Pacific Northwest National Laboratory Richland, Washington E. V. Browell, R. A. Ferrare, and S. Ismael National Aeronautics and Space Administration Langley Research Center Hampton, Virginia

398

Microsoft Word - ALIVE_ARM2007_kiedron.doc  

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

Meeting 2007 Meeting 2007 Comparison of aerosol optical depth from passive and active measurements during the 2005 Aerosol Lidar Validation Experiment (ALIVE) at SGP Peter Kiedron 1 , Connor Flynn 2 , Richard Ferrare 3 , Brent Holben 4 , Joseph Michalsky 5 , Beat Schmid 6 and James Slusser 7 1 CIRES/NOAA/Earth System Research Laboratory, peter.kiedron@noaa.gov 2 Pacific Northwest National Laboratory, connor.flynn@pnl.gov 3 NASA Langley Research Center, richard.a.ferrare@nasa.gov 4 NASA/Goddard Space Flight Center, brent@spamer.gsfc.nasa.gov 5 NOAA/Earth System Research Laboratory, joseph.michalsky@noaa.gov 6 Pacific Northwest National Laboratory, beat.schmid@pnl.gov 7 Colorado State University, sluss@uvb.nrel.colostate.edu ABSTRACT: During the Aerosol Lidar Validation Experiment (ALIVE) conducted from Sep 12

399

1  

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

Refurbishment and Upgrade of the Refurbishment and Upgrade of the Atmospheric Radiation Measurement Raman Lidar D.D. Turner Pacific Northwest National Laboratory Richland, Washington J.E.M. Goldsmith Sandia National Laboratories Livermore, California Introduction The Atmospheric Radiation Measurement Program (ARM) Climate Research Facility (ACRF) Raman lidar (CARL) is an autonomous, turn-key system that profiles water vapor, aerosols, and clouds throughout the diurnal cycle for days without attention (Goldsmith et al. 1998). CARL was first deployed to the Southern Great Plains CRF during the summer of 1996 and participated in the 1996 and 1997 water vapor intensive operational periods (IOPs). Since February 1998, the system has collected over 38,000 hrs of data (equivalent of almost 4.4 years), with an average monthly uptime of 62% during

400

Section 61  

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Retrieval of Cloud Properties from Ground-Based Retrieval of Cloud Properties from Ground-Based Lidar/Radiometer Data C.M.R. Platt, S.A. Young, R.T. Austin, S.C. Marsden, G.R. Patterson, J.A. Bennett, B. Petraitis, and B. Turner CSIRO, Division of Atmospheric Research Aspendale, Victoria, Australia Abstract The retrieval of cloud properties from Lidar/Radiometer data by the LIRAD method is described. Several data sets taken by the CSIRO Division of Atmospheric Research are now available for such retrievals as a result of several major field experiments during the past six years. The LIRAD method is reviewed briefly and its application to the various data sets is described. The data have been obtained at temperatures ranging from +5EC down to -80EC, representing a large fraction of global atmospheric tempera-

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401

K. Sassen  

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Sassen Sassen Department of Meteorology University of Utah Salt Lake City I UT 84112 companion papers) participated in major field projects to obtain detailed cloud datasets, along with complementary cloud modeling and empirical studies. We describe our progress to date in our main research areas below. Polarization Diversity Lidar (PDL) Development As reviewed at the start of the ARM Program (Sassen 1991), polarization lidar techniques have unique cloud- sensing capabilities, particularly with regard to the unambiguous discrimination of cloud phase and acx:urate determination of cloud boundaries. Various polarization techniques had not been systematically evaluated in the field, but such evaluations could now be facilitated by modern lidardesigns based on high-speed microcomputers

402

ARM - Campaign Instrument - pdlidar  

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

govInstrumentspdlidar govInstrumentspdlidar Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Polarization Diversity Lidar (PDLIDAR) Instrument Categories Aerosols, Cloud Properties, Atmospheric Profiling Campaigns CRYSTAL-FACE [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2002.06.26 - 2002.08.01 M-PACE - Polarization Diversity Lidar (PDL) [ Download Data ] North Slope Alaska, 2004.09.01 - 2004.10.21 Remote Cloud Sensing (RCS) Field Evaluation [ Download Data ] Southern Great Plains, 1994.04.01 - 1994.05.31 Primary Measurements Taken The following measurements are those considered scientifically relevant. Refer to the datastream (netcdf) file headers for the list of all available measurements, including those recorded for diagnostic or quality assurance

403

ARM - Datastreams - hsrl  

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

Datastreamshsrl Datastreamshsrl Documentation Data Quality Plots Citation DOI: 10.5439/1025200 [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Datastream : HSRL High Spectral Resolution Lidar Active Dates 2011.01.21 - 2014.01.08 Measurement Categories Aerosols, Cloud Properties Originating Instrument High Spectral Resolution Lidar (HSRL) Measurements Only measurements considered scientifically relevant are shown below by default. Show all measurements Measurement Units Variable Altitude above mean sea level m alt Attenuated molecular return 1/(m sr) atten_beta_r_backscat ( time, range ) Attenuated molecular return 1/(m sr) atten_beta_r_backscatter ( time, range )

404

Microsoft Word - ARM Value-Added Product_tech_rpt_v2.doc  

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

77 77 An Atmospheric Radiation Measurement Value-Added Product to Retrieve Optically Thin Cloud Visible Optical Depth using Micropulse Lidar October 2006 Chaomei Lo Jennifer M. Comstock Connor Flynn Pacific Northwest National Laboratory Richland, Washington Work supported by the U.S. Department of Energy, Office of Energy Research, Office of Biological and Environmental Research C Lo, JM Comstock, C Flynn, October 2006, ARM TR-077 iii Contents 1 Introduction .......................................................................................................................................... 1 2 Input Data.............................................................................................................................................

405

Reconciling Ground-Based and Space-Based Estimates of the Frequency of Occurrence and Radiative Effect of Clouds around Darwin, Australia  

SciTech Connect (OSTI)

The objective of this paper is to investigate whether estimates of the cloud frequency of occurrence and associated cloud radiative forcing as derived from ground-based and satellite active remote sensing and radiative transfer calculations can be reconciled over a well instrumented active remote sensing site located in Darwin, Australia, despite the very different viewing geometry and instrument characteristics. It is found that the ground-based radar-lidar combination at Darwin does not detect most of the cirrus clouds above 10 km (due to limited lidar detection capability and signal obscuration by low-level clouds) and that the CloudSat radar - Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) combination underreports the hydrometeor frequency of occurrence below 2 km height, due to instrument limitations at these heights. The radiative impact associated with these differences in cloud frequency of occurrence is large on the surface downwelling shortwave fluxes (ground and satellite) and the top-of atmosphere upwelling shortwave and longwave fluxes (ground). Good agreement is found for other radiative fluxes. Large differences in radiative heating rate as derived from ground and satellite radar-lidar instruments and RT calculations are also found above 10 km (up to 0.35 Kday-1 for the shortwave and 0.8 Kday-1 for the longwave). Given that the ground-based and satellite estimates of cloud frequency of occurrence and radiative impact cannot be fully reconciled over Darwin, caution should be exercised when evaluating the representation of clouds and cloud-radiation interactions in large-scale models and limitations of each set of instrumentation should be considered when interpreting model-observations differences.

Protat, Alain; Young, Stuart; McFarlane, Sally A.; L'Ecuyer, Tristan; Mace, Gerald G.; Comstock, Jennifer M.; Long, Charles N.; Berry, Elizabeth; Delanoe, Julien

2014-02-01T23:59:59.000Z

406

Microsoft PowerPoint - ARM2008_poster_mbc_raf [Compatibility Mode]  

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

l l d W t V V i bilit N Cl d M d Aerosol and Water Vapor Variability Near Clouds Measured Aerosol and Water Vapor Variability Near Clouds Measured Aerosol and Water Vapor Variability Near Clouds Measured p y b h U d d SGP R Lid by the Upgraded SGP Raman Lidar by the Upgraded SGP Raman Lidar by the Upgraded SGP Raman Lidar by t e Upg aded SG a a da 1 2 3 4 4 Richard Ferrare 1 David Turner 2 Marian Clayton 3 Rob Newsom 4 Chitra Sivaraman 4 Richard Ferrare 1 David Turner 2 Marian Clayton 3 Rob Newsom 4 Chitra Sivaraman 4 Richard Ferrare , David Turner , Marian Clayton , Rob Newsom , Chitra Sivaraman 1 NASA L l R h C t 2 U i it f Wi i M di 3 S i S t d A li ti I 4 P ifi N th t N ti l L b t 1 NASA Langley Research Center 2 University of Wisconsin-Madison 3 Science Systems and Applications Inc 4 Pacific Northwest National Laboratory NASA Langley Research Center University of Wisconsin Madison Science Systems and Applications, Inc.

407

Data/model integration for vertical mixing in the stable Arctic boundary layer  

SciTech Connect (OSTI)

This is the final report of a short Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). Data on atmospheric trace constituents and the vertical structure of stratus clouds from a 1996 expedition to the central Arctic reveal mechanisms of vertical mixing that have not been observed in mid-latitudes. Time series of the altitude and thickness of summer arctic stratus have been observed using an elastic backscatter lidar aboard an icebreaker. With the ship moored to the pack ice during 14 data collection stations and the lidar staring vertically, the time series represent advected cloud fields. The lidar data reveal a significant amount of vertical undulation in the clouds, strongly suggestive of traveling waves in the buoyantly damped atmosphere that predominates in the high Arctic. Concurrent observations of trace gases associated with the natural sulfur cycle (dimethyl sulfide, SO{sub 2}, NH{sub 3}, H{sub 2}O{sub 2}) and aerosols show evidence of vertical mixing events that coincide with a characteristic signature in the cloud field that may be called dropout or lift out. A segment of a cloud deck appears to be relocated from the otherwise quasicontinuous layer to another altitude a few hundred meters lower or higher. Atmospheric models have been applied to identify the mechanism that cause the dropout phenomenon and connect it dynamically to the surface layer mixing.

Barr, S.; ReVelle, D.O.; Kao, C.Y.J.; Bigg, E.K.

1998-12-31T23:59:59.000Z

408

ARCADE - Atmospheric Research for Climate and Astroparticle DEtection  

E-Print Network [OSTI]

The characterization of the optical properties of the atmosphere in the near UV, in particular the tropospheric aerosol stratification, clouds optical depth and spatial distribution are common in the field of atmospheric physics, due to aerosol effect on climate, and also in cosmic rays physics, for a correct reconstruction of energy and longitudinal development of showers. The goal of the ARCADE project is the comparison of the aerosol attenuation measurements obtained with the typical techniques used in cosmic ray experiments (side-scattering measurement, elastic LIDAR and Raman LIDAR) in order to assess the systematic errors affecting each method providing simultaneous observations of the same air mass with different techniques. For this purpose we projected a LIDAR that is now under construction: it will use a 355 nm Nd:YAG laser and will collect the elastic and the N2 Raman back-scattered light. For the side-scattering measurement we will use the Atmospheric Monitoring Telescope, a facility owned by the ...

Buscemi, M; Cilmo, M; Coco, M; Ferrarese, S; Guarino, F; Tonachini, A S; Valore, L; Wiencke, L

2014-01-01T23:59:59.000Z

409

Offshore winds using remote sensing techniques  

Science Journals Connector (OSTI)

Ground-based remote sensing instruments can observe winds at different levels in the atmosphere where the wind characteristics change with height: the range of heights where modern turbine rotors are operating. A six-month wind assessment campaign has been made with a LiDAR (Light Detection And Ranging) and a SoDAR (Sound Detection and Ranging) on the transformer/platform of the world's largest offshore wind farm located at the West coast of Denmark to evaluate their ability to observe offshore winds. The high homogeneity and low turbulence levels registered allow the comparison of LiDAR and SoDAR with measurements from cups on masts surrounding the wind farm showing good agreement for both the mean wind speed and the longitudinal component of turbulence. An extension of mean wind speed profiles from cup measurements on masts with LiDAR observations results in a good match for the free sectors at different wind speeds. The log-linear profile is fitted to the extended profiles (averaged over all stabilities and roughness lengths) and the deviations are small. Extended profiles of turbulence intensity are also shown for different wind speeds up to 161 m. Friction velocities and roughness lengths calculated from the fitted log-linear profile are compared with the Charnock model which seems to overestimate the sea roughness for the free sectors.

Alfredo Peña; Charlotte Bay Hasager; Sven-Erik Gryning; Michael Courtney; Ioannis Antoniou; Torben Mikkelsen; Paul Sørensen

2007-01-01T23:59:59.000Z

410

1  

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

Characterization of the Atmospheric State above the SGP Characterization of the Atmospheric State above the SGP Using Raman Lidar and AERI/GOES Measurements R. A. Ferrare National Aeronautics and Space Administration Langley Research Center Hampton, Virginia D. D. Turner Pacific Northwest National Laboratory Richland, Washington L. A. Heilman Science Applications International Corporation National Aeronautics and Space Administration Langley Research Center Hampton, Virginia W. F. Feltz University of Wisconsin Madison, Wisconsin T. P. Tooman Sandia National Laboratories Livermore, California O. Dubovik Science Systems and Applications, Inc. National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland R. N. Halthore Brookhaven National Laboratory Upton, New York

411

ovtchinnikov-98.pdf  

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

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

412

X:\ARM_19~1\P113-137.WPD  

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

µm µm µm Session Papers 129 Feasibility of Tropospheric Water Vapor Profiling Using Infrared Heterodyne Differential Absorption Lidar C. J. Grund and R. M. Hardesty National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado B. J. Rye Cooperative Institute for Research in Environmental Sciences (CU/NOAA) University of Colorado Boulder, Colorado Continuous, high quality profiles of water vapor, free of column lengths can be compared to determine the range- systematic bias and of moderate temporal and spatial resolved concentration. Most DIAL systems used for resolution, acquired over long periods at low operational monitoring water vapor have operated at wavelengths of and maintenance cost, are fundamental to the success of

413

1  

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The Vertical Distribution of Aerosols: Lidar Measurements versus Model Simulations R.A. Ferrare National Aeronautics and Space Agency-Langley Research Center Hampton, Virginia D.D. Turner University of Wisconsin-Madison Madison, Wisconsin M. Clayton Science Applications International Corporation/ National Aeronautics and Space Agency-Langley Research Center Hampton, Virginia M. Chin National Aeronautics and Space Agency-Goddard Space Flight Center Greenbelt, Maryland S. Guibert and M. Schulz Laboratoire des Sciences du Climat et de l'environment Gif-sur-Yvette, France C. Chuang Lawrence Livermore National Laboratory Livermore, California M. Krol Institute for Marine and Atmospheric Research Utrecht (IMAU) Utrecht, The Netherlands

414

ARM - Site Instruments  

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

Darwin SiteInstruments Darwin SiteInstruments TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts Instruments : Central Facility, Darwin, Australia [ Single installation ] AERI Atmospheric Emitted Radiance Interferometer Radiometric Browse Plots Browse Data [ Single installation ] CSPHOT Cimel Sunphotometer Aerosols, Radiometric Browse Data [ Single installation ] DISDROMETER Impact Disdrometer Surface Meteorology Browse Plots Browse Data [ Single installation ] DL Doppler Lidar Cloud Properties Browse Data [ Single installation ] GNDRAD Ground Radiometers on Stand for Upwelling Radiation Radiometric Browse Plots

415

Section 47  

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

Comparisons Among Cloud Parameter Estimates Comparisons Among Cloud Parameter Estimates Derived from Radar, Infrared-Radiometer, Lidar and Aircraft Measurements S. Y. Matrosov and J. B. Snider Cooperative Institute for Research in Environmental Studies University of Colorado at Boulder and National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado R. F. Reinking and R. A. Kropfli National Oceanic and Atmospheric Administration Environmental Technology Laboratory, Boulder, Colorado E. W. Eloranta and P. Piironen University of Wisconsin, Madison, Wisconsin R. T. Bruintjes National Center for Atmospheric Research, Boulder, Colorado Introduction Remote sensing methods to retrieve cloud microphysical and radiative parameters from measurements taken by different remote sensors are an important source of quantitative

416

ARM - Site Instruments  

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

PacificInstruments PacificInstruments TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts Instruments : Tropical Western Pacific [ Installed at 3 facilities ] AERI Atmospheric Emitted Radiance Interferometer Radiometric Browse Plots Browse Data [ Installed at 2 facilities ] CSAPR C-Band ARM Precipitation Radar Cloud Properties Browse Data [ Installed at 3 facilities ] CSPHOT Cimel Sunphotometer Aerosols, Radiometric Browse Data [ Single installation ] DISDROMETER Impact Disdrometer Surface Meteorology Browse Plots Browse Data [ Single installation ] DL Doppler Lidar Cloud Properties Browse Data [ Installed at 3 facilities ]

417

Testing a Cloud Condensation Nuclei Remote Sensing Method  

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

a Cloud Condensation Nuclei a Cloud Condensation Nuclei Remote Sensing Method S. J. Ghan Climate Physics Pacific Northwest National Laboratory Richland, Washington D. R. Collin Department of Atmospheric Sciences Texas A&M University College Station, Texas Introduction Under certain conditions vertical profiles of cloud condensation nuclei (CCN) spectra can be retrieved from ground-based measurements (Ghan and Collins 2003). Surface measurements of the CCN spectrum are scaled by the ratio of the 180 backscatter (or extinction) profile to the surface backscatter (or extinction). The backscatter (or extinction) profile is measured by Raman lidar (RL), and is corrected to dry conditions using the vertical profile of relative humidity (calculated from the absolute

418

ARM - Site Instruments  

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

Oliktok Point, Oliktok Point, AlaskaInstruments Oliktok Deployment AMF Home Oliktok Home Deployment Operations Baseline Instruments and Data Plots at the Archive Outreach News & Press New Sites Fact Sheet (PDF, 1.6MB) Images Contacts Fred Helsel, AMF Operations Lynne Roeder, Media Contact Hans Verlinde, Principal Investigator Instruments : Oliktok Point, Alaska [ Single installation ] AERI Atmospheric Emitted Radiance Interferometer Radiometric Not Online [ Single installation ] CSAPR C-Band ARM Precipitation Radar Cloud Properties Not Online [ Single installation ] CSPHOT Cimel Sunphotometer Aerosols Browse Data [ Single installation ] DL Doppler Lidar Cloud Properties Not Online [ Single installation ] ECOR Eddy Correlation Flux Measurement System Surface/Subsurface Properties Not Online [ Single installation ]

419

Development and Progression of Aeolian Blowouts in Padre Island National Seashore  

E-Print Network [OSTI]

Figure 22- LiDAR of Study Area 1; Volume Change Between 2005 and 2011. ............. 77 Figure 23- GPR Transects for Study Area 1 (SA1) with Radar Surfaces Shown in Green and Radar Facies Shown in Black with Inferred Features Dotted. A More... Detailed Image of Each Transect Found in Appendix 1. .................. 79 Figure 24- Blowout Evolution of Study Site 2 (SA2) a) 1969-1979, b) 1984-1989, c) 1993-1996, d) 2002-2010, and e) Total Change Throughout Study .......... 85 Figure 25...

Jewell, Mallorie E

2013-05-28T23:59:59.000Z

420

Cloudnet Project  

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

Cloudnet is a research project supported by the European Commission. This project aims to use data obtained quasi-continuously for the development and implementation of cloud remote sensing synergy algorithms. The use of active instruments (lidar and radar) results in detailed vertical profiles of important cloud parameters which cannot be derived from current satellite sensing techniques. A network of three already existing cloud remote sensing stations (CRS-stations) will be operated for a two year period, activities will be co-ordinated, data formats harmonised and analysis of the data performed to evaluate the representation of clouds in four major european weather forecast models.

Hogan, Robin

Note: This page contains sample records for the topic "lidar profiles-temperature rlproftemp" 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

SEQUENCE STRATIGRAPHY AND CHEMOSTRATIGRAPHY OF AN INCISED VALLEY FILL WITHIN THE CRETACEOUS BLACKHAWK FORMATION, BOOK CLIFFS, UTAH  

E-Print Network [OSTI]

for his work and help with the LIDAR images. Also, I would like to thank Steve Hasiotis for his help on the trace fossil interpretations and Doug Walker for his help on the updated geologic timescale. Thank you so much to all of my family... coalified peat horizons indicating that they were waterlogged part of the year and contained high concentrations of organic matter (Mack et 17 al., 1993). There are three different paleo-Histosols within the IVF. Tuscher 2 has a 2.7 m paleo...

Cornwell, Christine Frasca

2012-12-31T23:59:59.000Z

422

Quantum Cascade Laser Development Efforts for Implementation into Chemical and Remote Sensing Systems  

SciTech Connect (OSTI)

Quantum cascade lasers (QCL) offer many desirable attributes as mid-infrared laser sources for chemical and remote sensing. Some key advantages are a narrow linewidth, wide bandwidth current modulation characteristics and moderate tunability (15 cm-1). Combined, these characteristics allow for applications to a wide variety of chemical and remote sensing techniques such as wavelength and frequency modulation based detection techniques, cavity enhanced point sensors as well as techniques such as LIDAR and DIAL. This paper will describe laser development efforts to enhance QCL frequency stabilization and QCL injection locking and to develop robust external cavity QCL designs.

Wojcik, Michael D.; Myers, Tanya L.; Taubman, Matthew S.; Cannon, Bret D.; Broocks, Bryan T.; Mosely, Trinesha

2004-12-01T23:59:59.000Z

423

Variability in Long-Wave Runup as a Function of Nearshore Bathymetric Features  

E-Print Network [OSTI]

and can be highly variable. The dynamic environment along the coast requires the thorough analysis of offshore features (Plant and Holman, 1997; Wang and Davis, 1998) which can be obtained through Light Detection and Ranging (lidar) (Brock et al., 2002... the movement of the sandbar to growth ratio. The results show that the sandbars moved onshore when the significant wave height was less than 1 m and offshore for wave heights greater than 1 m (Plant and Holman, 1997). The magnitude of the sandbar response...

Dunkin, Lauren M.

2011-08-08T23:59:59.000Z

424

ARM CLASIC ER2 CRS/EDOP  

SciTech Connect (OSTI)

Data was taken with the NASA ER-2 aircraft with the Cloud Radar System and other instruments in conjunction with the DOE ARM CLASIC field campaign. The flights were near the SGP site in north Central Oklahoma and targeted small developing convection. The CRS is a 94 GHz nadir pointing Doppler radar. Also on board the ER-2 was the Cloud Physics Lidar (CPL). Seven science flights were conducted but the weather conditions did not cooperate in that there was neither developing convection, or there was heavy rain.

Gerald Heymsfield

2010-12-20T23:59:59.000Z

425

STELLOPT Modeling of the 3D Diagnostic Response in ITER  

SciTech Connect (OSTI)

The ITER three dimensional diagnostic response to an n=3 resonant magnetic perturbation is modeled using the STELLOPT code. The in-vessel coils apply a resonant magnetic perturbation (RMP) fi eld which generates a 4 cm edge displacement from axisymmetry as modeled by the VMEC 3D equilibrium code. Forward modeling of flux loop and magnetic probe response with the DIAGNO code indicates up to 20 % changes in measured plasma signals. Simulated LIDAR measurements of electron temperature indicate 2 cm shifts on the low field side of the plasma. This suggests that the ITER diagnostic will be able to diagnose the 3D structure of the equilibria.

Lazerson, Samuel A

2013-05-07T23:59:59.000Z

426

1  

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

Instrument Cross-Comparisons and Automated Quality Instrument Cross-Comparisons and Automated Quality Control of Atmospheric Radiation Measurement Data S. Moore and G. Hughes ATK Mission Research Santa Barbara, California Introduction Within the Atmospheric Radiation Measurement (ARM) instrument network, several different systems often measure the same quantity at the same site. For example, several ARM instruments measure time- series profiles of the atmosphere that were previously available only from balloon-borne radiosonde systems. These instruments include the Radar Wind Profilers (RWP) with Radio-Acoustic Sounding Systems (RASS), the Atmospheric Emitted Radiance Interferometer (AERI), the Microwave Radiometer Profiler (MWRP), and the Raman Lidar (RL). ARM researchers have described methods for direct

427

Modeling Dynamic Landscapes in Open Source GIS  

E-Print Network [OSTI]

differencing, per-cell statistics: core, envelope, rate of change Space-Time voxel model V o lu m e s S u rf a c e s L in e s 2011 2004 1999 Helena Mitasova, NCSU DEM processing Series of point clouds interpolated to 0.3m-1m DEMs Systematic errors... to Doug Newcomb and Hope Morgan for sharing the data RTKGPS 2001 Lidar 0.2m lower Helena Mitasova, NCSU Nags Head Raster-based analysis Core surface z-min for each cell Envelope surface z-max for each cell Shoreline band: defined by shoreline from core...

Mitasova, Helena

2013-11-20T23:59:59.000Z

428

CX-005011: Categorical Exclusion Determination | Department of Energy  

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

1: Categorical Exclusion Determination 1: Categorical Exclusion Determination CX-005011: Categorical Exclusion Determination Modeling the Physical and Biochemical Influence of Ocean Thermal Energy Conversion Plant Discharges into their Adjacent Waters CX(s) Applied: A9, A11 Date: 01/13/2011 Location(s): West Oahu, Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Makai Ocean Engineering Incorporated proposes to use federal funds to study and model Ocean Thermal Energy Conversion design to minimize the environmental impacts and optimize costs associated with operation. They will use a numerical model to measure continuous ocean current profiles, temperatures, and conductivity. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-005011_0.pdf More Documents & Publications CX-004536: Categorical Exclusion Determination

429

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

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

FE0001156 FE0001156 Montana State University FE SCC/Gasification Division FY10-13/ 10/1/2009 - 12/31/2013 William W. Aljoe Bozeman, MT Differential Absorption Lidar (DIAL) for Spatial Mapping of CO2 Development and testing of a scanning eye-safe diode laser-based differential absorption lidar for near surface mapping of CO2 number densities. William W. Aljoe Digitally signed by William W. Aljoe DN: cn=William W. Aljoe, o=NETL, ou=SCC-Sequestration, email=aljoe@netl.doe.gov, c=US Reason: I attest to the accuracy and integrity of this document Date: 2013.05.28 15:12:37 -04'00' 05 28 2013 Pierina Fayish Digitally signed by Pierina Fayish DN: cn=Pierina Fayish, o, ou, email=pierina.fayish@netl.doe.gov, c=US Date: 2013.05.29 10:26:57 -04'00' 05 29 2013 CX originally issued on 9/23/2009. CX re-signed to revise performance period end date to 12/31/2013.

430

Cloud Properties and Radiative Heating Rates for TWP  

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

A cloud properties and radiative heating rates dataset is presented where cloud properties retrieved using lidar and radar observations are input into a radiative transfer model to compute radiative fluxes and heating rates at three ARM sites located in the Tropical Western Pacific (TWP) region. The cloud properties retrieval is a conditional retrieval that applies various retrieval techniques depending on the available data, that is if lidar, radar or both instruments detect cloud. This Combined Remote Sensor Retrieval Algorithm (CombRet) produces vertical profiles of liquid or ice water content (LWC or IWC), droplet effective radius (re), ice crystal generalized effective size (Dge), cloud phase, and cloud boundaries. The algorithm was compared with 3 other independent algorithms to help estimate the uncertainty in the cloud properties, fluxes, and heating rates (Comstock et al. 2013). The dataset is provided at 2 min temporal and 90 m vertical resolution. The current dataset is applied to time periods when the MMCR (Millimeter Cloud Radar) version of the ARSCL (Active Remotely-Sensed Cloud Locations) Value Added Product (VAP) is available. The MERGESONDE VAP is utilized where temperature and humidity profiles are required. Future additions to this dataset will utilize the new KAZR instrument and its associated VAPs.

Comstock, Jennifer

431

Midlatitude Cirrus Clouds and Multiple Tropopauses from a 2002-2006 Climatology over the SIRTA Observatory  

E-Print Network [OSTI]

This study present a comparison of lidar observations of midlatitude cirrus clouds over the SIRTA observatory between 2002 and 2006 with multiple tropopauses (MT) retrieved from radiosounding temperature profiles. The temporal variability of MT properties (frequency, thickness) are discussed. Results show a marked annual cycle, with MT frequency reaching its lowest point in May (~18% occurrence of MT) and slowly rising to more than 40% in DJF. The average thickness of the MT also follows an annual cycle, going from less than 1 km in spring to 1.5 km in late autumn. Comparison with lidar observations show that cirrus clouds show a preference for being located close below the 1st tropopause. When the cloud top is above the 1st tropopause (7% of observations), in 20% of cases the cloud base is above it as well, resulting in a cirrus cloud "sandwiched" between the two tropopauses. Compared to the general distribution of cirrus, cross-tropopause cirrus show a higher frequency of large optical depths, while inter-t...

Noel, Vincent

2007-01-01T23:59:59.000Z

432

Review of remote-sensor potential for wind-energy studies  

SciTech Connect (OSTI)

This report evaluates a number of remote-sensing systems such as radars, lidars, and acoustic echo sounders which are potential alternatives to the cup- and propeller anemometers routinely used in wind energy siting. The high costs and demanding operational requirements of these sensors currently preclude their use in the early stages of a multi-phase wind energy siting strategy such as that recently articulated by Hiester and Pennell (1981). Instead, these systems can be used most effectively in the lattermost stages of the siting process - what Hiester and Pennell (1981) refer to as the site development phase, necessary only for the siting of large wind-energy conversion systems (WECS) or WECS clusters. Even for this particular application only four techniques appear to be operational now; that is, if used properly, these techniques should provide the data sets currently considered adequate for wind-energy siting purposes. They are, in rough order of increasing expense and operating demands: optical transverse wind sensors; acoustic Doppler sounders; time-of-flight and continuous wave (CW) Doppler lidar; and frequency-modulated, continuous wave (FM-CW) Doppler radar.

Hooke, W.H.

1981-03-01T23:59:59.000Z

433

Satellite-based laser windsounder  

SciTech Connect (OSTI)

This is the final report of a one-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The project`s primary objective is to determine the technical feasibility of using satellite-based laser wind sensing systems for detailed study of winds, aerosols, and particulates around and downstream of suspected proliferation facilities. Extensive interactions with the relevant operational organization resulted in enthusiastic support and useful guidance with respect to measurement requirements and priorities. Four candidate wind sensing techniques were evaluated, and the incoherent Doppler technique was selected. A small satellite concept design study was completed to identify the technical issues inherent in a proof-of-concept small satellite mission. Use of a Mach-Zehnder interferometer instead of a Fabry-Perot would significantly simplify the optical train and could reduce weight, and possibly power, requirements with no loss of performance. A breadboard Mach-Zehnder interferometer-based system has been built to verify these predictions. Detailed plans were made for resolving other issues through construction and testing of a ground-based lidar system in collaboration with the University of Wisconsin, and through numerical lidar wind data assimilation studies.

Schultz, J.F.; Czuchlewski, S.J.; Quick, C.R. [and others

1997-08-01T23:59:59.000Z

434

Stability and Turbulence in the Atmospheric Boundary Layer: A Comparison of Remote Sensing and Tower Observations  

SciTech Connect (OSTI)

When monitoring winds and atmospheric stability for wind energy applications, remote sensing instruments present some advantages to in-situ instrumentation such as larger vertical extent, in some cases easy installation and maintenance, measurements of vertical humidity profiles throughout the boundary layer, and no restrictions on prevailing wind directions. In this study, we compare remote sensing devices, Windcube lidar and microwave radiometer, to meteorological in-situ tower measurements to demonstrate the accuracy of these measurements and to assess the utility of the remote sensing instruments in overcoming tower limitations. We compare temperature and wind observations, as well as calculations of Brunt-Vaisala frequency and Richardson numbers for the instrument deployment period in May-June 2011 at the U.S. Department of Energy National Renewable Energy Laboratory's National Wind Technology Center near Boulder, Colorado. The study reveals that a lidar and radiometer measure wind and temperature with the same accuracy as tower instruments, while also providing advantages for monitoring stability and turbulence. We demonstrate that the atmospheric stability is determined more accurately when the liquid-water mixing ratio derived from the vertical humidity profile is considered under moist-adiabatic conditions.

Friedrich, K.; Lundquist, J. K.; Aitken, M.; Kalina, E. A.; Marshall, R. F.

2012-01-01T23:59:59.000Z

435

Cloud Properties and Radiative Heating Rates for TWP  

SciTech Connect (OSTI)

A cloud properties and radiative heating rates dataset is presented where cloud properties retrieved using lidar and radar observations are input into a radiative transfer model to compute radiative fluxes and heating rates at three ARM sites located in the Tropical Western Pacific (TWP) region. The cloud properties retrieval is a conditional retrieval that applies various retrieval techniques depending on the available data, that is if lidar, radar or both instruments detect cloud. This Combined Remote Sensor Retrieval Algorithm (CombRet) produces vertical profiles of liquid or ice water content (LWC or IWC), droplet effective radius (re), ice crystal generalized effective size (Dge), cloud phase, and cloud boundaries. The algorithm was compared with 3 other independent algorithms to help estimate the uncertainty in the cloud properties, fluxes, and heating rates (Comstock et al. 2013). The dataset is provided at 2 min temporal and 90 m vertical resolution. The current dataset is applied to time periods when the MMCR (Millimeter Cloud Radar) version of the ARSCL (Active Remotely-Sensed Cloud Locations) Value Added Product (VAP) is available. The MERGESONDE VAP is utilized where temperature and humidity profiles are required. Future additions to this dataset will utilize the new KAZR instrument and its associated VAPs.

Comstock, Jennifer

2013-11-07T23:59:59.000Z

436

A Comparison of Model-Scale Experimental Measurements and Computational Predictions for a Large Transom-Stern Wave  

E-Print Network [OSTI]

The flow field generated by a transom stern hull form is a complex, broad-banded, three-dimensional system marked by a large breaking wave. This unsteady multiphase turbulent flow feature is difficult to study experimentally and simulate numerically. Recent model-scale experimental measurements and numerical predictions of the wave-elevation topology behind a transom-sterned hull form, Model 5673, are compared and assessed in this paper. The mean height, surface roughness (RMS), and spectra of the breaking stern-waves were measured by Light Detection And Ranging (LiDAR) and Quantitative Visualization (QViz) sensors over a range of model speeds covering both wet- and dry-transom operating conditions. Numerical predictions for this data set from two Office of Naval Research (ONR) supported naval-design codes, Numerical Flow Analysis (NFA) and CFDship-Iowa-V.4, have been performed. Comparisons of experimental data, including LiDAR and QViz measurements, to the numerical predictions for wet-transom and dry transo...

Drazen, David A; Fu, Thomas C; Beale, Kristine L C; O'Shea, Thomas T; Brucker, Kyle A; Dommermuth, Douglas G; Wyatt, Donald C; Bhushan, Shanti; Carrica, Pablo M; Stern, Fred

2014-01-01T23:59:59.000Z

437

A Comparison of Full-Scale Experimental Measurements and Computational Predictions of the Transom-Stern Wave of the R/V Athena I  

E-Print Network [OSTI]

Full-scale experimental measurements and numerical predictions of the wave-elevation topology behind a transom-sterned vessel, the R/V Athena I, are compared and assessed in this paper. The mean height, surface roughness (RMS), and spectra of the breaking stern-waves were measured in-situ by a LIDAR sensor over a range of ship speeds covering both wet- and dry-transom operating conditions. Numerical predictions for this data set from two Office of Naval Research (ONR) supported naval-design codes, NFA and CFDship-Iowa-V.4, have been performed. Initial comparisons of the LIDAR data to the numerical predictions at 5.4 m/s (10.5 kts), a wet-transom condition, are presented. This work represents an ongoing effort on behalf of the ONR Ship Wave Breaking and Bubble Wake program, to assess, validate, and improve the capability of Computational Fluid Dynamics (CFD) to predict full-scale ship-generated wave fields.

Wyatt, Donald C; Taylor, Genevieve L; Terrill, Eric J; Xing, Tao; Bhushan, Shanti; O'Shea, Thomas T; Dommermuth, Douglas G

2014-01-01T23:59:59.000Z

438

Assessment of Uncertainty in Cloud Radiative Effects and Heating Rates through Retrieval Algorithm Differences: Analysis using 3-years of ARM data at Darwin, Australia  

SciTech Connect (OSTI)

Ground-based radar and lidar observations obtained at the Department of Energy’s Atmospheric Radiation Measurement Program’s Tropical Western Pacific site located in Darwin, Australia are used to retrieve ice cloud properties in anvil and cirrus clouds. Cloud microphysical properties derived from four different retrieval algorithms (two radar-lidar and two radar only algorithms) are compared by examining mean profiles and probability density functions of effective radius (Re), ice water content (IWC), extinction, ice number concentration, ice crystal fall speed, and vertical air velocity. Retrieval algorithm uncertainty is quantified using radiative flux closure exercises. The effect of uncertainty in retrieved quantities on the cloud radiative effect and radiative heating rates are presented. Our analysis shows that IWC compares well among algorithms, but Re shows significant discrepancies, which is attributed primarily to assumptions of particle shape. Uncertainty in Re and IWC translates into sometimes-large differences in cloud radiative effect (CRE) though the majority of cases have a CRE difference of roughly 10 W m-2 on average. These differences, which we believe are primarily driven by the uncertainty in Re, can cause up to 2 K/day difference in the radiative heating rates between algorithms.

Comstock, Jennifer M.; Protat, Alain; McFarlane, Sally A.; Delanoe, Julien; Deng, Min

2013-05-22T23:59:59.000Z

439

Flight Testing of an Advanced Airborne Natural Gas Leak Detection System  

SciTech Connect (OSTI)

ITT Industries Space Systems Division (Space Systems) has developed an airborne natural gas leak detection system designed to detect, image, quantify, and precisely locate leaks from natural gas transmission pipelines. This system is called the Airborne Natural Gas Emission Lidar (ANGEL) system. The ANGEL system uses a highly sensitive differential absorption Lidar technology to remotely detect pipeline leaks. The ANGEL System is operated from a fixed wing aircraft and includes automatic scanning, pointing system, and pilot guidance systems. During a pipeline inspection, the ANGEL system aircraft flies at an elevation of 1000 feet above the ground at speeds of between 100 and 150 mph. Under this contract with DOE/NETL, Space Systems was funded to integrate the ANGEL sensor into a test aircraft and conduct a series of flight tests over a variety of test targets including simulated natural gas pipeline leaks. Following early tests in upstate New York in the summer of 2004, the ANGEL system was deployed to Casper, Wyoming to participate in a set of DOE-sponsored field tests at the Rocky Mountain Oilfield Testing Center (RMOTC). At RMOTC the Space Systems team completed integration of the system and flew an operational system for the first time. The ANGEL system flew 2 missions/day for the duration for the 5-day test. Over the course of the week the ANGEL System detected leaks ranging from 100 to 5,000 scfh.

Dawn Lenz; Raymond T. Lines; Darryl Murdock; Jeffrey Owen; Steven Stearns; Michael Stoogenke

2005-10-01T23:59:59.000Z

440

Predicting and validating the tracking of a Volcanic Ash Cloud during the 2006 Eruption of Mt. Augustine Volcano  

SciTech Connect (OSTI)

On 11 January 2006, Mount Augustine volcano in southern Alaska began erupting after 20-year repose. The Anchorage Forecast Office of the National Weather Service (NWS) issued an advisory on 28 January for Kodiak City. On 31 January, Alaska Airlines cancelled all flights to and from Anchorage after multiple advisories from the NWS for Anchorage and the surrounding region. The Alaska Volcano Observatory (AVO) had reported the onset of the continuous eruption. AVO monitors the approximately 100 active volcanoes in the Northern Pacific. Ash clouds from these volcanoes can cause serious damage to an aircraft and pose a serious threat to the local communities, and to transcontinental air traffic throughout the Arctic and sub-Arctic region. Within AVO, a dispersion model has been developed to track the dispersion of volcanic ash clouds. The model, Puff, was used operational by AVO during the Augustine eruptive period. Here, we examine the dispersion of a volcanic ash cloud from Mount Augustine across Alaska from 29 January through the 2 February 2006. We present the synoptic meteorology, the Puff predictions, and measurements from aerosol samplers, laser radar (or lidar) systems, and satellites. UAF aerosol samplers revealed the presence of volcanic aerosols at the surface at sites where Puff predicted the ash clouds movement. Remote sensing satellite data showed the development of the ash cloud in close proximity to the volcano and a sulfur-dioxide cloud further from the volcano consistent with the Puff predictions. Lidars showed the presence of volcanic aerosol with consistent characteristics aloft over Alaska and were capable of detecting the aerosol, even in the presence of scattered clouds and where the cloud is too thin/disperse to be detected by remote sensing satellite data. The lidar measurements revealed the different trajectories of ash consistent with the Puff predictions. Dispersion models provide a forecast of volcanic ash cloud movement that might be undetectable by any other means but are still a significant hazard. Validation is the key to assessing the accuracy of any future predictions. The study highlights the use of multiple and complementary observations used in detecting the trajectory ash cloud, both at the surface and aloft within the atmosphere.

Webley, Peter W.; Atkinson, D.; Collins, Richard L.; Dean, K.; Fochesatto, J.; Sassen, Kenneth; Cahill, Catherine F.; Prata, A.; Flynn, Connor J.; Mizutani, K.

2008-11-01T23:59:59.000Z

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


441

ARM - Field Campaign - ISDAC - NASA ARCTAS Coordination with ARM  

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

- NASA ARCTAS Coordination with ARM - NASA ARCTAS Coordination with ARM Related Campaigns Indirect and Semi-Direct Aerosol Campaign (ISDAC) 2008.04.01, Ghan, AAF Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : ISDAC - NASA ARCTAS Coordination with ARM 2008.04.01 - 2008.04.21 Lead Scientist : Richard Ferrare For data sets, see below. Description The NASA Langley Airborne High Spectral Resolution Lidar (HSRL) was deployed on the NASA King Air B200 for the ARCTAS mission in 2008. The HSRL measurements acquired during this mission were used to characterize the vertical and horizontal distribution of aerosols and aerosol optical properties, infer aerosol type, and partitioning aerosol optical depth by type. The focus of the spring (April) deployment was measurements of Arctic

442

PowerPoint プレゼンテーション  

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

11 11 OPTICAL PROPERTIES OF ARCTIC AEROSOL IN SPRING BASED ON SKY-RADIOMETER AND MICRO-PULSE LIDAR MEASUREMENTS AT NY-ALESUND, SVALBARD M. Shiobara 1) , M. Yamano 2) , K. Aoki 3) , H. Kobayashi 4) , M. Yabuki 1) , J.R. Campbell 5) , and E.J. Welton 6) 1) National Institute of Polar Research, Kaga 1-9-10, Itabashi-ku, Tokyo 173-8515, Japan 2) Energy Sharing Co., Toride, Japan, 3) University of Toyama, Toyama, Japan, 4) University of Yamanashi, Kofu, Japan 5) Science Systems and Applications, Inc., Lanham, MD, 6) NASA Goddard Space Flight Center, Greenbelt, MD contact: shio@nipr.ac.jp (M. Shiobara) Introduction National Institute of Polar Research (NIPR) promotes atmospheric research in both polar regions. Atmospheric research by NIPR includes ground-based remote-sensing of aerosol and clouds

443

Page not found | Department of Energy  

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

01 - 4610 of 9,640 results. 01 - 4610 of 9,640 results. Download CX-010478: Categorical Exclusion Determination Deepwater Permanent Subsea Pressure Compensated Chemical Reservoir Construction and Testing CX(s) Applied: A9, A11 Date: 05/31/2013 Location(s): Texas Offices(s): National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-010478-categorical-exclusion-determination Download CX-010479: Categorical Exclusion Determination Load Control System Reliability CX(s) Applied: A9 Date: 05/29/2013 Location(s): Wyoming Offices(s): National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-010479-categorical-exclusion-determination Download CX-010481: Categorical Exclusion Determination Differential Absorption Lidar (DIAL) for Spatial Mapping of Carbon Dioxide CX(s) Applied: A1, A9, A11, B3.6

444

ARM - Facility News Article  

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

28, 2005 [Facility News] 28, 2005 [Facility News] Readiness of New Lidar Evaluated at Southern Great Plains Site Bookmark and Share Aircraft for the Boundary Layer CO2 Intensive Operational Period will fly over the SGP Central Facility using both spirals and racetrack patterns. Data will be collected under a variety of cloud and meteorological conditions. Aircraft for the Boundary Layer CO2 Intensive Operational Period will fly over the SGP Central Facility using both spirals and racetrack patterns. Data will be collected under a variety of cloud and meteorological conditions. As the focus of the Boundary Layer Carbon Dioxide (CO2) Intensive Operational Period (IOP) starting in March, science collaborators at ITT Industries and the National Aeronautics and Space Administration (NASA)

445

ARM - Publications: Science Team Meeting Documents: Single and Multiple  

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

Single and Multiple scattering in optically thick multifractal clouds Single and Multiple scattering in optically thick multifractal clouds Grosdidier, Yves McGill University Lovejoy, Shaun McGill University Watson, Brian St. Lawrence University, Physics Department Schertzer, Daniel Ecole Nationale des Ponts et Chauss'es Satellite studies have shown that cloud radiances (at both visible and infra red wavelengths) are scale invariant over scales spanning much of the meteorologically significant range, and airborne lidar data have shown that vertical cross sections of passive scalar clouds are also scaling but with quite different exponents in the horizontal and vertical directions (quantified by an "elliptical dimension" = Del-23/9 close to the empirical value 2.55±0.02). This multifractality is the result of huge

446

Categorical Exclusion Determinations: Golden Field Office | Department of  

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

March 27, 2012 March 27, 2012 CX-008208: Categorical Exclusion Determination Renewable Energy and Energy Efficiency Revolving Loan Program - Andreola Farms, Incorporated CX(s) Applied: B5.18 Date: 03/27/2012 Location(s): Nevada Offices(s): Golden Field Office March 26, 2012 CX-008207: Categorical Exclusion Determination Field Evaluation and Validation of Remote Wind Sensing Technologies - Shore-Based and Buoy Mounted Light LIDAR Systems CX(s) Applied: A9, A11, B3.1, B3.16 Date: 03/26/2012 Location(s): New Jersey Offices(s): Golden Field Office March 26, 2012 CX-008206: Categorical Exclusion Determination Energy Efficiency and Conservation Block Grant - Charlotte-Mecklenburg Police Department Parking Deck Electric Vehicle Charging Station CX(s) Applied: B5.23 Date: 03/26/2012 Location(s): North Carolina

447

Categorical Exclusion (CX) Determinations By Date | Department of Energy  

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

7, 2012 7, 2012 CX-008208: Categorical Exclusion Determination Renewable Energy and Energy Efficiency Revolving Loan Program - Andreola Farms, Incorporated CX(s) Applied: B5.18 Date: 03/27/2012 Location(s): Nevada Offices(s): Golden Field Office March 26, 2012 CX-008164: Categorical Exclusion Determination Captain Jack-Olinda RAS LLL/LT Replacement Project CX(s) Applied: B1.31 Date: 03/26/2012 Location(s): California Offices(s): Bonneville Power Administration March 26, 2012 CX-008207: Categorical Exclusion Determination Field Evaluation and Validation of Remote Wind Sensing Technologies - Shore-Based and Buoy Mounted Light LIDAR Systems CX(s) Applied: A9, A11, B3.1, B3.16 Date: 03/26/2012 Location(s): New Jersey Offices(s): Golden Field Office March 26, 2012 CX-008206: Categorical Exclusion Determination

448

Estimating Three-Dimensional Cloudy Radiative Transfer Effects from Time-Height Cross Sections  

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

Estimating Three-Dimensional Cloudy Radiative Transfer Estimating Three-Dimensional Cloudy Radiative Transfer Effects from Time-Height Cross Sections C. Hannay and R. Pincus National Oceanic and Atmospheric Administration Climate Diagnostics Center Boulder, Colorado K. F. Evans Program in Atmospheric and Oceanic Sciences University of Colorado Boulder, Colorado Introduction Clouds in the atmosphere are finite in extent and variable in every direction and in time. Long data sets from ground-based profilers, such as lidars or cloud radars, could provide a very valuable set of observations to characterize this variability. We may ask how well such profiling instruments can represent the cloud structure as measured by the magnitude of the three-dimensional (3D) radiative transfer effect. The 3D radiative transfer effect is the difference between the domain average broadband solar surface

449

CX-007901: Categorical Exclusion Determination | Department of Energy  

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

01: Categorical Exclusion Determination 01: Categorical Exclusion Determination CX-007901: Categorical Exclusion Determination Improving Atmospheric Models for Offshore Wind Resource Mapping and Prediction Using LIDAR, Aircraft, and In-Ocean Observations CX(s) Applied: A9, A11, B3.1, B3.2 Date: 02/22/2012 Location(s): New York Offices(s): Golden Field Office DOE is proposing to provide federal funding to State University of New York (SUNY) to develop, research, model, and collect data of environmental factors that influence wind turbine structures along the Atlantic coast. This study would include information gathering, data analysis and modeling, mapping, and reporting. CX-007901.pdf More Documents & Publications CX-009575: Categorical Exclusion Determination CX-009130: Categorical Exclusion Determination

450

Discrimination between thin cirrus and and tropospheric aerosol using  

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

Discrimination between thin cirrus and and tropospheric aerosol using Discrimination between thin cirrus and and tropospheric aerosol using multiple measurements from Darwin ARCS Mitchell, Ross CSIRO Category: Aerosols Thin cirrus cloud occurs frequently in the tropics, and is often difficult to distinguish from tropospheric aerosol on the basis of temporal variations in ground based measurements, since both can be rather spatially uniform. In this study we investigate their discrimination by combining data from three instruments at the Darwin Atmospheric Radiation and Cloud Station (ARCS): the Cimel sun photometer (CSP), the micropulse lidar (MPL), and the total sky imager (TSI). The study was carried out over the dry season of 2005, with the usual widespread burning of tropical savanna leading to extensive smoke plumes. It is shown that the locus of data in

451

Research Highlight  

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

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

452

Section 87  

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

9 9 Figure 1. The Tiwi Islands (Melville and Bathurst) lie off Australia's northern coast. The instruments were situated at Pularumpi, on the west coast of Melville Island. Retrieval of Tropical Cirrus Cloud Properties from Ground- Based Lidar and Millimeter-Wave Radar Sensing at the Maritime Continent Thunderstorm Experiment R. T. Austin, S. A. Young, C.M.R. Platt and G. R. Patterson CSIRO, Division of Atmospheric Research Aspendale, Victoria, Australia S. M. Sekelsky and R. E. McIntosh Microwave Remote Sensing Laboratory University of Massachusetts Amherst, Massachusetts Introduction The Maritime Continent Thunderstorm Experiment (MCTEX) was conducted in November and December 1995 on Melville and Bathurst Islands, north of Darwin off the northern coast of Australia. Scientists from CSIRO and the University of

453

Microsoft PowerPoint - poster for ARM 2007 5  

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

process in single-layer arctic stratus during MPACE process in single-layer arctic stratus during MPACE Gong Zhang 1 , Greg McFarquhar 1 , Johannes Verlinde 2 , Michael Poellot 3 , Greg Kok 4 , Edwin Eloranta 5 , Paul DeMott 6 , Tony Prenni 6 and Andrew Heymsfield 7 1 University of Illinois 2 Pennsylvania State University 3 University of North Dakota 4 Droplet Measurement Technologies 5 University of Wisconsin 6 Colorado State University 7 National Center for Atmospheric Research 1 Arctic boundary single-layer stratus 2 Vertical cloud structure 5. Acknowledgments This research was supported by DOE ARM under contract number DE-FG02-00ER62913. FIG 1 Backscatter intensity and depolarization ratio measured by Wisconsin HSRL Lidar in Barrow, AK. During MPACE, single- layer arctic stratus was observed from Oct 09 2004 to Oct 12 2004.

454

Towards a Characterization of Arctic Mixed-Phase Clouds  

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Towards a Characterization of Arctic Mixed-Phase Clouds Towards a Characterization of Arctic Mixed-Phase Clouds Shupe, Matthew CIRES/NOAA/ETL Kollias, Pavlos Brookhaven National Laboratory Category: Cloud Properties Mixed-phase clouds play a unique role in the Arctic, where the delicate balance of phases in these clouds can have a profound impact on the surface radiation balance and various cloud-atmosphere-radiation-surface feedback processes. A better understanding of these clouds is clearly important and has been a recent objective of the ARM program. To this end, multiple sensors including radar, lidar, and temperature soundings, have been utilized in an automated cloud type classification scheme for clouds observed at the North Slope of Alaska site. The performance of this new algorithm at identifying mixed-phase cloud conditions is compared with an

455

ARM - Field Campaign - Water Vapor IOP  

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govCampaignsWater Vapor IOP govCampaignsWater Vapor IOP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Water Vapor IOP 2000.09.18 - 2000.10.08 Lead Scientist : Henry Revercomb Data Availability Yes For data sets, see below. Description Scientific hypothesis: 1. Microwave radiometer (MWR) observations of the 22 GHz water vapor line can accurately constrain the total column amount of water vapor (assuming a calibration accuracy of 0.5 degC or better, which translates into 0.35 mm PWV). 2. Continuous profiling by Raman lidar provides a stable reference for handling sampling problems and observes a fixed column directly above the site only requiring a single height- independent calibration factor. 3. Agreement between the salt-bath calibrated in-situ probes, chilled

456

ARM - Publications: Science Team Meeting Documents  

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

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

457

1  

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

Cirrus Radiative Properties in the Tropical Western Pacific Cirrus Radiative Properties in the Tropical Western Pacific J. M. Comstock and T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington G. G. Mace University of Utah Salt Lake City, Utah Introduction Cirrus clouds in tropical regions are often located high in the cold upper troposphere and have low optical depths. In addition, tropical cirrus often extend in large sheets up to 1000 km horizontally, which may have a large influence on the energy budget of the atmosphere. Characterizing the location and radiative properties of cirrus clouds is an important step in understanding the processes that generate and maintain these cold, thin cirrus clouds and their impact on upper tropospheric dynamics. In this paper, we present cirrus radiative properties derived using a combination of Micropulse Lidar

458

CX-002277: Categorical Exclusion Determination | Department of Energy  

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

77: Categorical Exclusion Determination 77: Categorical Exclusion Determination CX-002277: Categorical Exclusion Determination Hawaii Utility Integration for Wind CX(s) Applied: B3.1 Date: 05/13/2010 Location(s): Hawaii, Hawaii Office(s): Energy Efficiency and Renewable Energy, Golden Field Office All activities under Task 1 of this project have been covered under a previously approved National Environmental Policy Act determination. For task 2 of this project, temperature sensors and lidar (Light Detection And Ranging) and sodar (Sonic Detection And Ranging) monitoring equipment would be deployed for 9 to 12 months at four sites on the island of Hawaii to measure wind and atmospheric conditions. The equipment would be mobile and free standing or mounted on trailers. No surface-disturbing activities

459

Field Investigations And Temperature-Gradient Drilling At Marine Corps  

Open Energy Info (EERE)

Investigations And Temperature-Gradient Drilling At Marine Corps Investigations And Temperature-Gradient Drilling At Marine Corps Air-Ground Combat Center (Mcagcc), Twenty-Nine Palms, Ca Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Field Investigations And Temperature-Gradient Drilling At Marine Corps Air-Ground Combat Center (Mcagcc), Twenty-Nine Palms, Ca Details Activities (4) Areas (1) Regions (0) Abstract: The U.S. Navy's Geothermal Program Office (GPO) has been conducting geothermal exploration activities in the Camp Wilson area of Marine Corps Air-Ground Combat Center (MCAGCC), Twenty-nine Palms, CA, for almost two years. Work has included self-potential (SP) surveys, fault structure analyses using LiDAR surveys, and drilling and assessment of five (5) temperature-gradient holes. For several decades the GPO has worked

460

Brazil-US Forest Service Climate Change Technical Cooperation | Open Energy  

Open Energy Info (EERE)

US Forest Service Climate Change Technical Cooperation US Forest Service Climate Change Technical Cooperation Jump to: navigation, search Name Brazil-US Forest Service Climate Change Technical Cooperation Agency/Company /Organization United States Forest Service Sector Land Focus Area Forestry Topics Background analysis Website http://www.fs.fed.us/global/to Country Brazil South America References US Forest Service Climate Change Technical Cooperation[1] USFS engagement in Brazil: - Reducing deforestation through improving sustainable forest management ("...supports local partners in Brazil to teach forest technicians, managers and supervisors how to apply forest management principles and reduced-impact logging methods in the Brazilian Amazon") - Forest Monitoring - Remote Sensing - LiDAR - National Forest

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461

ARM - Publications: Science Team Meeting Documents  

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

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

462

panchenko-98.PDF  

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

9 9 Reconstruction of the Water Vapor Profiles from the Ground Data M. V. Panchenko, S. A. Terpugova, S. M. Sakerin, and D. M. Kabanov Institute of Atmospheric Optics Tomsk, Russia Introduction Water vapor plays an important role in the radiation budget of the "atmosphere-underlying surface" system. To solve the problems related to the radiation transfer in the atmos- phere, one needs to know both the value of columnar water vapor and the distribution of water vapor over the altitude. It is especially urgent for the lower troposphere. At the same time, when measuring or calculating the radia- tive characteristics under the specific atmospheric condi- tions, sometimes balloon or lidar sounding data is not available. Then it is of interest to develop a method for

463

Surface based remote sensing of aerosol-cloud interactions  

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

Surface based remote sensing of aerosol-cloud interactions Surface based remote sensing of aerosol-cloud interactions Feingold, Graham NOAA/Environmental Technology Laboratory Frisch, Shelby NOAA/Environmental Technology Laboratory Min, Qilong State University of New York at Albany Category: Cloud Properties We will present an analysis of the effect of aerosol on clouds at the Southern Great Plains ARM site. New methods for retrieving cloud droplet effective radius with radar (MMCR), multifilter rotating shadowband radiometer (MFRSR), and microwave radiometer (MWR) will be discussed. Relationships based on adiabatic clouds will be used to constrain retrievals. We will investigate the use of a range of proxies for cloud condensation nuclei, ranging from surface measurements of light scattering and accumulation mode number concentration, to lidar-measured extinction or

464

Research Highlights Sorted by Working Group  

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Working Group Working Group Aerosol Life Cycle | Cloud Life Cycle | Cloud-Aerosol-Precipitation Interactions | Aerosol | Cloud Modeling | Cloud Properties | Radiative Processes Aerosol Life Cycle 2013 Bhattacharya, A. Wildfires Lead to More Warming Than Climate Models Predict, a New Mexico Fire Study Reports ASR Fast, J. . Development and Validation of a Black Carbon Mixing State Resolved Three-Dimensional Model ARM ASR Gilles, M., Moffet, R. Spectro-microscopic Measurements of Carbonaceous Aerosol Aging in Central California ARM ASR Kafle, D. N., Coulter, R. L. Micropulse Lidar-Derived Aerosol Optical Depth Climatology at ARM Sites Worldwide ARM Keppel-Aleks, G. Determining the Future of CO2 Using an Earth System Model ARM Li, Z. A Mixed Bag of Aerosols over Northeastern China ARM

465

1  

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

Weather and Forecasting During Mixed-Phase Arctic Weather and Forecasting During Mixed-Phase Arctic Cloud Experiment V.T. Yannuzzi, E. Clothiaux, H. Verlinde, and J. Harrington Department of Meteorology Pennsylvania State University Mont Alto, Pennsylvania Introduction and Important Events Prior to Mixed-Phase Arctic Cloud Experiment The Mixed-Phase Arctic Cloud Experiment (MPACE) was conducted across the North Slope of Alaska (NSA) during September 27-October 22, 2004. The experiment was funded by the Department of Energy (DOE)-Atmospheric Radiation Measurement (ARM) with the intention of increasing our knowledge about mixed-phase clouds in the arctic. In addition to radiosonde launches from four sites, lidar provided by the University of Wisconsin and the University of Alaska Fairbanks were used in

466

Research Highlight  

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

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

467

HSRL mass estimate based on CALIPSO  

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NASA B-200 King Air ARCTAS/ISDAC NASA B-200 King Air ARCTAS/ISDAC Operations and Science Richard Ferrare, Chris Hostetler, John Hair, Anthony Cook, David Harper, Mike Obland, Ray Rogers, Sharon Burton, Matt Shupe, Dave Turner, Connor Flynn B200/HSRL Deployment During ARCTAS (Spring)  Independently measures aerosol/cloud extinction and backscatter profiles at 532 nm  Includes - Backscatter channels at 1064 nm - Polarization sensitivity at 532 and 1064 nm  Profile Measurement capabilities - Extensive measurements * Backscatter at 532 and 1064 nm * Extinction at 532 nm - Intensive measurements * Color ratio (or Angstrom coeff.) for backscatter (β 1064 / β 532 ) * Extinction-to-backscatter ratio at 532 nm * Depolarization at 532 and 1064 nm High Spectral Resolution Lidar (HSRL) *B200 based in Barrow, Alaska

468

ARM - Facility News Article  

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Aircraft Comes ALIVE During Field Campaign at the Southern Great Plains Aircraft Comes ALIVE During Field Campaign at the Southern Great Plains Bookmark and Share Outside the hangar in Ponca City, Oklahoma, the optical head of the AATS-14 (inset) can be seen as the white dome on the roof of the Jetstream-31 aircraft Outside the hangar in Ponca City, Oklahoma, the optical head of the AATS-14 (inset) can be seen as the white dome on the roof of the Jetstream-31 aircraft Researchers from ARM Program and National Aeronautical and Space Administration (NASA) took to the skies in September for an 11-day Aerosol Lidar Validation Experiment (ALIVE) at the ARM Southern Great Plains (SGP) site. The ALIVE field campaign was conducted to collect airborne remote sensing data on atmospheric aerosols for validation studies of the Raman

469

ARM - Publications: Science Team Meeting Documents  

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

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

470

LANL Institutes - Institute of Geophysics and Planetary Physics  

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Geophysics Geophysics Focus Leader: Scott Baldridge sbaldridge@lanl.gov This focus supports a breadth of basic research concerning planetary surfaces and interiors, including numerical, experimental, and field studies of the structure, properties, processes, and dynamics of terrestrial and giant planets. It is strongly recommended that proposals exploit unique LANL resources (e.g., LANL high-performance computing resources; the Los Alamos Neutron Science Center (LANSCE); geochemical analyses facilities resident in EES and C divisions; and/or sensor technology capabilities resident in C, EES, ISR, and N divisions). We are particularly interested in innovative research projects in areas of current, strong international scientific interest such as the following: New techniques in passive (imaging) or active (e.g., lidar, radar)

471

Yost_ARM_Mar07.ppt  

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

III. Improved Cloud Detection over the SGP III. Improved Cloud Detection over the SGP * GOES-8 data from June to November 1998 were reprocessed over a region within a 10-km radius of the ARM SGP Central Facility using the new stats algorithm to aid cloud detection during twilight * Table 1 shows how the new VISST cloud amounts compare to 30-minute averaged cloud amounts derived from micropulse lidar (MPL) data. Values in parentheses were obtained without using the stats algorithm * An example from June 5, 1998, is illustrated in Figure 2 below * Most of the warm low clouds over Kansas and northern Oklahoma were detected by the nighttime cloud mask at 1115 Z (not shown) but missed by the twilight cloud mask at 1145 Z (Fig. 2a) * The stats algorithm restores much of the cloud cover (Fig. 2b) and this is easily verified by looking at an

472

platt-99.PDF  

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

Determining Tropical Cirrus Particle Size Distributions Determining Tropical Cirrus Particle Size Distributions from Remote Sensing with Lidar, Millimeter Radar and Infrared and Microwave Radiometry C.M.R. Platt and R. T. Austin Department of Atmospheric Science Colorado State University Fort Collins, Colorado S. M. Sekelsky Department of Electrical and Computer Engineering University of Massachusetts Amherst, Massachusetts D. L. Mitchell Atmospheric Sciences Center, Desert Research Institute Reno, Nevada S. A. Young Commonwealth Scientific and Industrial Research Organization Atmospheric Research Division Aspendale, Victoria, Australia Introduction Clouds and their interactions with radiation still represent a significant (in our view, the greatest) uncertainty in climate models. The aim of this study is to evaluate and develop methods for measuring

473

1  

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

High Resolution Spectra of Atmospheric Water Vapor in High Resolution Spectra of Atmospheric Water Vapor in the Near IR Using a Raman Shift Alexandrite Laser M. R. Hammond, T. D. Wilkerson, and V. B. Wickwar Center for Atmospheric and Space Sciences Utah State University Logan, Utah Abstract We report the successful development of a tunable narrow line laser transmitter for near-infrared water vapor bands in the 730, 820, 940, and 1140 nm regions. The source laser is a flashlamp pumped alexandrite ring laser seed injected with a tunable diode laser. As a first test of the platform we measured the atmospheric transmission of the water vapor spectrum near 1140 nm from which the line strengths and air-broadened halfwidths for 15 lines were determined. These measurements were made to support the development of a water vapor/temperature lidar adaptable to a wide range of atmospheric

474

Poster Sessions B. B. Stankov, E. R. Westwater, J. B. Snider, and J. H. Churnside  

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B. B. Stankov, E. R. Westwater, J. B. Snider, and J. H. Churnside B. B. Stankov, E. R. Westwater, J. B. Snider, and J. H. Churnside National Oceanic and Atmospheric Administration Environmental Research laboratories Environmental Technology(8) laboratory Boulder, CO 80303 Fundamental studies on clouds and radiative transfer require representative measurements of temperature and water vapor profiles. To supplement radiosonde balloon launches, information on vertical profiles of temperature and water vapor at Cloud and Radiation Testbed (CART) sites will be provided by remote sensors. Instruments planned for deployment include wind profilers and Radio Acoustic Sounding Systems (RASS) at 915- and 50-MHz, dual-channel microwave radiometers, and cloud lidars providing cloud base height (Wesely 1992). Future CART instruments may include millimeter wave-

475

PowerPoint Presentation  

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

HIAPER Cloud Radar (HCR) HIAPER Cloud Radar (HCR) Vivek, Eric Loew, Gordon Farquharson, Scott Spuler and Wen-Chau Lee Earth Observing Laboratory NCAR, Boulder, Colorado NCAR maintains and deploys a suite of world-class remote sensing instruments (radars and lidars) in support of the atmospheric science community Develops innovative and state of the art "next-generation" remote sensors Motivation for Observational Instruments Key scientific challenges: When and where convection will be initiated? How to improve accuracy of a NWP model in describing on set of precipitation process? What factors control intensity and track of an hurricane? How does convection influence UTLS chemistry? How to parameterize aerosol and cloud interaction in an earth system model? Dual Use: Instruments should be deployable on airborne

476

melfi-98.pdf  

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

7 7 Upper Tropospheric Water Vapor: A Field Campaign of Two Raman Lidars, Airborne Hygrometers, and Radiosondes S. H. Melfi and K. D. Evans University of Maryland, Baltimore County Baltimore, Maryland D. D. Turner Pacific Northwest National Laboratory Richland, Washington D. N. Whiteman and G. Schwemmer NASA-Goddard Space Flight Center Greenbelt, Maryland R. A. Ferrare NASA-Langley Research Center Hampton, Virginia Introduction Water vapor in the atmosphere plays an important role in radiative transfer and the process of radiative balance so critical for understanding global change. It is the principal ingredient in cloud formation, one of the most difficult atmospheric processes to model, and the most variable component of the earth-atmosphere albedo. And as a free

477

ARM - Publications: Science Team Meeting Documents  

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

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

478

Title: Radar-observed convective characteristics during TWP-ICE  

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

Title: Radar-observed convective characteristics during TWP-ICE Title: Radar-observed convective characteristics during TWP-ICE Schumacher, Courtney Texas A&M University Houze, Robert University of Washington May, Peter Bureau or Meteorology Research Centre Frederick, Kaycee Cetrone, Jasmine Vallgren, Andreas Category: Field Campaigns This poster will describe the radar dataset obtained in the Tropical Warm Pool International Cloud Experiment (TWP-ICE), which is to take place 20 January - 14 February 2006 in the vicinity of Darwin, Australia. We will describe the convective systems observed during the project by two scanning C-band Doppler radars, one of which will provide dual-polarization measurements, and ARM's vertically pointing cloud radar and lidar installations. In addition, we will discuss the potential for combining

479

1  

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

Vertical Distribution of Aerosols Over the Atmospheric Vertical Distribution of Aerosols Over the Atmospheric Radiation Measurement Southern Great Plains Site Measured versus Modeled R. Ferrare NASA Langley Research Center Hampton, Virginia D.D. Turner Pacific Northwest National Laboratory Richland, Washington M. Clayton SAIC/NASA Langley Research Center Hampton, Virginia S. Guibert and M. Schulz Laboratorie des Sciences du Climat et de l'Environment Toulouse, France M. Chin NASA Goddard Space Flight Center Greenbelt, Maryland Abstract Aerosol extinction profiles measured by the Department of Energy Atmospheric Radiation Measurement (ARM) Climate Research Facility Raman lidar are used to evaluate aerosol extinction profiles and aerosol optical thickness (AOT) simulated by aerosol models as part of the Aerosol module inter-

480

ARM - Instrument Datastreams  

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

govDataInstrument Datastreams govDataInstrument Datastreams Measurement Categories Select below to highlight datastreams in specified measurement categories. Aerosols The effect of aerosols is measured by instrument systems and lidars that provide data on the size distribution, optical properties, scattering, and extinction of aerosols. Atmospheric Carbon Measurements of atmospheric carbon are obtained from samples collected at the Southern Great Plains site. For more information about these measurements, see the ARM Carbon Project website. Coming soon: Aircraft carbon profile samples Atmospheric State Cloud Properties Active and passive remote sensing instruments are used to measure the macroscopic properties (horizontal and vertical distributions) of clouds, and the microphysical properties (sizes, shapes, and phases [water or ice])

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481

Understanding the AIRS, ARM, and MODIS cloud products by cross-comparison  

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Understanding the AIRS, ARM, and MODIS cloud products by cross-comparison Understanding the AIRS, ARM, and MODIS cloud products by cross-comparison Kahn, Brian Jet Propulsion Laboratory Eldering, Annmarie Jet Propulsion Laboratory Category: Cloud Properties We present comparisons of the Atmospheric Infrared Sounder (AIRS) operational cloud top height (CTH) to the active surface-based measurements of the Atmospheric Radiation Measurement (ARM) program sites in the tropical Western Pacific. The agreement is found to be consistent to other comparisons of passive IR-derived CTH from other measurement platforms despite the nominal footprint size of 45 km at nadir view. Independent comparisons of CTH to the millimeter-wave cloud radar at Manus Island and the micropulse lidar at Nauru Island indicate that the CTH retrieved by AIRS is statistically significant at the 5% level or less for cirrus cases

482

1  

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Ground-Based Remote Sensing of Water Ground-Based Remote Sensing of Water Vapor by Differential Absorption and Raman Lidars D. D. Turner Pacific Northwest National Laboratory Richland, Washington H. Linné, J. Bösenberg, S. Lehmann, and K. Ertel Max-Planck Institute for Meteorology Hamburg, Germany J. E. M. Goldsmith and T. P. Tooman Sandia National Laboratories Livermore, California Introduction Water vapor is well known to be a critical component in many aspects of atmospheric research, such as radiative transfer and cloud and aerosol processes. The distribution of water vapor in the atmosphere is highly variable, both in time and in space, and has proven to be very difficult to measure accurately. The U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) Program's overall goal

483

1  

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

Ability of MM5 to Simulate Ice Clouds: Systematic Ability of MM5 to Simulate Ice Clouds: Systematic Comparison between Simulated and Measured Fluxes and Lidar/Radar Profiles at Site Instrumental de Recherche par Teled'etrection Armospherique Atmospheric Observatory M. Chiriaco, R. Vautard, H. Chepfer, M. Haeffelin, Y. Wanherdrick, Y. Morille Institut Pierre Simon Laplace Laboratiore de Météorologie Dynamique Palaiseu, France A. Protat Institut Pierre Simon Laplace Centre d'études des Environnements Terrestre et Planétaires Paris, France J. Dudhia National Center for Atmospheric Research Boulder, Colorado Introduction Ice clouds play a major role in the radiative energy budget of the earth-atmosphere system (Liou 1986). Their radiative effect is governed primarily by the equilibrium between their albedo and greenhouse

484

ARM - Publications: Science Team Meeting Documents  

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

485

ackerman-98.pdf  

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One-Year Cloud Climatology for the One-Year Cloud Climatology for the Southern Great Plains Site T. P. Ackerman, R. T. Marchand, and E. E. Clothiaux Department of Meteorology The Pennsylvania State University University Park, Pennsylvania Introduction The addition of the millimeter wave cloud radar (MMCR) to the suite of instruments at the Southern Great Plains (SGP) site has provided the necessary observations to produce a cloud climatology. Data from the MMCR are currently being combined with data from the Belfort laser ceilometer (BLC) and micropulse lidar (MPL) to determine cloud occurrence and location using algorithms developed by our research group. These basic cloud statistics should prove useful for comparing with both single-column model (SCM) and general circulation model (GCM) predictions of cloud

486

sassen-99.PDF  

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Need for a Universal Cloud Property Algorithm Need for a Universal Cloud Property Algorithm for Active Remote Sensors K. Sassen and Z. Wang University of Utah Salt Lake City, Utah Introduction Lidar and radar measurements of cloud properties (e.g., cloud boundaries, phase, vertically resolved and integrated mass content, optical depth, etc.) are increasingly being relied on in modern climate-related research programs and are a keystone of the Atmospheric Radiation Measurement (ARM) Cloud and Radiation Testbed (CART) atmospheric measurement philosophy, to provide, relatively inexpensively, crucial cloud characterizations on a more or less routine continuous basis. As a result, a variety of data interpretation schemes and specific algorithms have been developed and are being applied to remote sensing data sets, but it must be recognized that a helter-skelter approach involves dangers as well as

487

ARM - Publications: Science Team Meeting Documents  

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

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

488

Posters  

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Posters Implementation of Raman Lidar for Profiling of Atmospheric Water Vapor and Aerosols at the Southern Great Plains Cloud and Radiation Testbed Site J.E.M. Goldsmith, S. E. Bisson, and F. H. Blair Sandia National Laboratories Livermore, California D. N. Whiteman and S. H. Melfi NASA Goddard Space Flight Facility Greenbelt, Maryland R. A. Ferrare (a) Hughes STX Corporation Lanham, Maryland Introduction There are clearly identified scientific requirements for continuous profiling of atmospheric water vapor at the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) site. Research conducted at several laboratories, including our own collaboration in a previous Instrument Development Project for the Atmospheric Radiation Measurement (ARM) Program, has demonstrated the

489

Categorical Exclusion Determinations: Montana | Department of Energy  

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

Montana Montana Categorical Exclusion Determinations: Montana Location Categorical Exclusion Determinations issued for actions in Montana. DOCUMENTS AVAILABLE FOR DOWNLOAD September 11, 2013 CX-011006: Categorical Exclusion Determination Scalable, Automated, Semi Permanent Seismic Method for Detecting Carbon Dioxide Plume Extent During Geological... CX(s) Applied: B3.1 Date: 09/11/2013 Location(s): Montana Offices(s): National Energy Technology Laboratory July 26, 2013 CX-010583: Categorical Exclusion Determination Upper Jocko River Property Funding CX(s) Applied: B1.25 Date: 07/16/2013 Location(s): Montana Offices(s): Bonneville Power Administration July 24, 2013 CX-010481: Categorical Exclusion Determination Differential Absorption Lidar (DIAL) for Spatial Mapping of Carbon Dioxide

490

Microsoft Word - taniguchi_k.doc  

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Boundary Layer Water Vapor Variations at the Southern Boundary Layer Water Vapor Variations at the Southern Great Plains Site Derived from Multiyear Raman Lidar Measurements K. Taniguchi and Z. Wang Department of Atmospheric Science University of Wyoming Laramie, Wyoming Introduction Lately, climate change has become a major concern for our society. However, it is not easy to understand the climate entirely as it is the accumulative result of the earth system (both anthropogenic and natural effects). As awareness of the complexity of the earth system increases, the study of climate needs to involve the modeling of the entire planetary system. Modeling would benefit from improvement in the knowledge of any physical process. In particular, water vapor has a great potential for advancing models because of its extended effects in various aspects. As a part of the hydrological

491

Rsdometty C.M.R. Platt, J. W. Bennett, S. A. Young, M. D. Fenwick, P. J. Manson, G. R. Patterson, and B. Petraitis  

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Rsdometty Rsdometty C.M.R. Platt, J. W. Bennett, S. A. Young, M. D. Fenwick, P. J. Manson, G. R. Patterson, and B. Petraitis CSIRO Division of Atmospheric Research Station Street Aspendale, Victoria, Australia Introduction a suitable detector, such a radiometer can yield a response time of about one second, which will follow most cl6ud fluctuations with minimum lag. The LIRAD Method The use of narrow beam filter radiometers with lidars goes back some considerable time. The CSIRO Marl< I radiometer was designed and constructed in 1970 (Platt 1971). Since then, improved versions (Marl< II and Marl< 111) have been constructed (Platt et al. 1987). Using the URAD method, much information has been obtained on the optical properties of cirrus (e.g., Platt et al. 1987, Platt and

492

zuev-98.pdf  

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1 1 Results of Lidar Studies of the Structure and Dynamics of Cirrus Clouds Above Western Siberia V. V. Zuev, M. I. Andreev, V. D. Burlakov, A. V. El'nikov, and A. N. Nevzorov Institute of Atmospheric Optics Tomsk, Russia Introduction Cirrus clouds occupy a special place among the earth's cloud formations. Their impact can be manifested through atmospheric warming or cooling (Cox 1971). Recurrence of cirrus clouds and their morphological and microphysical structures undergo significant variations as functions of latitude, season, and orography. Tomsk (56.5°N, 85.1°E) is situated in Western Siberia - a large part of the Eurasian continent covered by large forest areas far from seas and oceans. This introduces specific features in the formation of cirrus cloudiness above Western Siberia. Visual

493

ARM - PI Product - Combined Retrieval, Microphysical Retrievals & Heating  

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ProductsCombined Retrieval, Microphysical Retrievals & ProductsCombined Retrieval, Microphysical Retrievals & Heating Rates Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Product : Combined Retrieval, Microphysical Retrievals & Heating Rates 2011.10.11 - 2012.02.07 Site(s) GAN General Description Microphysical retrievals and heating rates from the AMIE/Gan deployment using the PNNL Combined Retrieval. The PNNL Combined Remote Sensor retrieval algorithm (CombRet) is designed to retrieve cloud and precipitation properties for all sky conditions. The retrieval is based on a combination of several previously published retrievals, with new additions related to the retrieval of cloud microphysical properties when only one instrument is able to detect cloud (i.e. radar only or lidar only).

494

Research Highlight  

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

495

Section 87  

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3 3 Results of Long-Term Lidar Observation of Eruption Aerosol Formations in the Stratosphere Over Tomsk After the Mount Pinatubo Eruption V.V. Zuev, V.D. Burlakov, and A.V. El'nikov Institute of Atmospheric Optics, Tomsk, Russia Introduction The investigations of scattering and absorbing characteristics of stratospheric aerosol layer after high-power volcanic eruptions make it possible to separate out and evaluate the influence of anomalous high aerosol concentrations on the radiation transfer in the atmosphere and the general radiation balance of the Earth. The violent eruption of Mt. Pinatubo in the Philippines in June 1991 injected into the atmosphere an estimated total aerosol mass loading of ~30 Mt, which is over twice the amount produced by the eruptions of El Chichon in

496

FE Categorical Exclusions | Department of Energy  

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

9, 2011 9, 2011 CX-006545: Categorical Exclusion Determination Fiber Optic Service Expansion: Building 59 to Building 84 CX(s) Applied: B1.3, B1.15 Date: 08/19/2011 Location(s): Pittsburgh, Pennsylvania Office(s): Fossil Energy, National Energy Technology Laboratory August 17, 2011 CX-006557: Categorical Exclusion Determination Differential Absorption Lidar (DIAL) for Spatial Mapping of Carbon Dioxide CX(s) Applied: B3.8, B3.11 Date: 08/17/2011 Location(s): Toole County, Montana Office(s): Fossil Energy, National Energy Technology Laboratory August 12, 2011 CX-006480: Categorical Exclusion Determination Materials Research Laboratory (MRL) CX(s) Applied: B3.6 Date: 08/12/2011 Location(s): Morgantown, West Virginia Office(s): Fossil Energy, National Energy Technology Laboratory

497

Studying Altocumulus Plus Virga with Ground-based Active and Passive Remote Sensors Zhien Wang1, Kenneth Sassen2, David Whiteman3, and Belay Demoz3 1University of Maryland, Baltimore County, Catonsville, MD 21228 2University of Alaska, Fairbanks, Alaska 99775 3NASA Goddard Space Flight Center, Greenbelt, MD 20771 E-mail: zhien@agnes.gsfc.nasa.gov  

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Seasonal and Interannual Variations of Boundary-layer Mixed-phase Seasonal and Interannual Variations of Boundary-layer Mixed-phase Cloud Properties Observed at the ARCF NSA site Zhien Wang, Ming Zhao, and Min Deng University of Wyoming , Laramie, Wyoming, 82071, zwang@uwyo.edu References Curry, J. et al., 1996: Overview of Arctic cloud and radiation characteristics. J. Climate., 9, 1731-1764. Wang, Z. and K. Sassen, 2002: Cirrus cloud microphysical property retrieval using lidar and radar measurements, I: algorithm description and comparison with in situ data. J. Appl. Meteor., 41, 218-229. Wang, Z., K. Sassen, D. Whiteman, and B. Demoz, 2004: Studying altocumulus plus virga with ground-based active and passive remote sensors. J. Appl. Meteor.,43, 449-460. Wang, Z., 2007: Refined Two-channel Microwave Radiometer Liquid Water Path Retrieval at Cold Regions by Using Multiple-sensor Measurements. IEEE Geoscience and Remote

498

PowerPoint Presentation  

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Surface and TOA Cloud Forcings Computed Using Several Cirrus Cloud Property Retrievals Surface and TOA Cloud Forcings Computed Using Several Cirrus Cloud Property Retrievals Chris Schwartz 1 , Jay Mace 1 , Roger Marchand 2 , Sally M c Farlane 2 , Matt Shupe 3 , Sergey Matrosov 3 , Min Deng 1 , Yuying Zhang 1 1. University of Utah, 2. Pacific Northwest National Laboratory, 3. University of Colorado Satellite-derived fluxes provided by Pat Minnis and Surface Radiation Analysis provided by Chuck Long Source Description Name Used in Plots G. Mace VZ, extinction constrained by Raman lidar Mace Bimodal Mace et al, 2006 Combination of retrieval algorithms, parameterizations, and empirical equations Ciret4 Yuying Zhang Retrieval based on reflectivity and radiance Zhang ZR Roger Marchand Retrievals base on reflectivity and Doppler velocity, parameterized for several different ice

499

Albany, OR * Anchorage, AK * Morgantown, WV * Pittsburgh, PA * Sugar Land, TX  

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Compact Eye-safe Scanning Differential Compact Eye-safe Scanning Differential Absorption LIDAR (DIAL) for Spatial Mapping of Carbon Dioxide for MVA at Geologic Carbon Sequestration Sites Background The overall goal of the Department of Energy's (DOE) Carbon Storage Program is to develop and advance technologies that will significantly improve the effectiveness of geologic carbon storage, reduce the cost of implementation, and prepare for widespread commercial deployment between 2020 and 2030. Research conducted to develop these technologies will ensure safe and permanent storage of carbon dioxide (CO2) to reduce greenhouse gas (GHG) emissions without adversely affecting energy use or hindering economic growth. Geologic carbon storage involves the injection of CO2 into underground formations that

500

Nailing Down Ice in a Cloud Model  

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Nailing Down Ice in a Cloud Model Nailing Down Ice in a Cloud Model For original submission and image(s), see ARM Research Highlights http://www.arm.gov/science/highlights/ Research Highlight A research team led by scientists at Pacific Northwest National Laboratory identified specific strengths and weaknesses of four different ice cloud retrieval algorithms. Their comparisons tested the ability of the algorithms to obtain cloud properties from radar and lidar observational measurements. The team noted the sometimes large variances in heating/cooling measurements compared to the observed data. Identifying specific weaknesses will help scientists improve our understanding of cloud properties in the atmosphere, which can be used for climate model development and evaluation. "Measuring the effective size and mass of ice crystals impacts our understanding