National Library of Energy BETA

Sample records for nsa sgp twp

  1. Characterization of Surface Albedo Over the ARM SGP CART and the NSA

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

    Characterization of Surface Albedo Over the ARM SGP CART and the NSA Z. Li and M. C. Cribb Earth System Science Interdisciplinary Center University of Maryland College Park, Maryland A. P. Trishchenko and Y. Luo Canada Centre for Remote Sensing Ottawa, Ontario, Canada Introduction Surface albedo is needed for satellite remote sensing of the surface radiation budget and for climate modelling. Determination of areal-mean surface albedo is challenging. Over the Southern Great Plains (SGP) site, a

  2. SGP and TWP (Manus) Ice Cloud Vertical Velocities

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

    Kalesse, Heike

    Daily netcdf-files of ice-cloud dynamics observed at the ARM sites at SGP (Jan1997-Dec2010) and Manus (Jul1999-Dec2010). The files include variables at different time resolution (10s, 20min, 1hr). Profiles of radar reflectivity factor (dbz), Doppler velocity (vel) as well as retrieved vertical air motion (V_air) and reflectivity-weighted particle terminal fall velocity (V_ter) are given at 10s, 20min and 1hr resolution. Retrieved V_air and V_ter follow radar notation, so positive values indicate downward motion. Lower level clouds are removed, however a multi-layer flag is included.

  3. SGP and TWP (Manus) Ice Cloud Vertical Velocities

    SciTech Connect (OSTI)

    Kalesse, Heike

    2013-06-27

    Daily netcdf-files of ice-cloud dynamics observed at the ARM sites at SGP (Jan1997-Dec2010) and Manus (Jul1999-Dec2010). The files include variables at different time resolution (10s, 20min, 1hr). Profiles of radar reflectivity factor (dbz), Doppler velocity (vel) as well as retrieved vertical air motion (V_air) and reflectivity-weighted particle terminal fall velocity (V_ter) are given at 10s, 20min and 1hr resolution. Retrieved V_air and V_ter follow radar notation, so positive values indicate downward motion. Lower level clouds are removed, however a multi-layer flag is included.

  4. Failure and Redemption of Multifilter Rotating Shadowband Radiometer (MFRSR)/Normal Incidence Multifilter Radiometer (NIMFR) Cloud Screening: Contrasting Algorithm Performance at Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) and Southern Great Plains (SGP) Sites

    SciTech Connect (OSTI)

    Kassianov, Evgueni I.; Flynn, Connor J.; Koontz, Annette S.; Sivaraman, Chitra; Barnard, James C.

    2013-09-11

    Well-known cloud-screening algorithms, which are designed to remove cloud-contaminated aerosol optical depths (AOD) from AOD measurements, have shown great performance at many middle-to-low latitude sites around the world. However, they may occasionally fail under challenging observational conditions, such as when the sun is low (near the horizon) or when optically thin clouds with small spatial inhomogeneity occur. Such conditions have been observed quite frequently at the high-latitude Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) sites. A slightly modified cloud-screening version of the standard algorithm is proposed here with a focus on the ARM-supported Multifilter Rotating Shadowband Radiometer (MFRSR) and Normal Incidence Multifilter Radiometer (NIMFR) data. The modified version uses approximately the same techniques as the standard algorithm, but it additionally examines the magnitude of the slant-path line of sight transmittance and eliminates points when the observed magnitude is below a specified threshold. Substantial improvement of the multi-year (1999-2012) aerosol product (AOD and its Angstrom exponent) is shown for the NSA sites when the modified version is applied. Moreover, this version reproduces the AOD product at the ARM Southern Great Plains (SGP) site, which was originally generated by the standard cloud-screening algorithms. The proposed minor modification is easy to implement and its application to existing and future cloud-screening algorithms can be particularly beneficial for challenging observational conditions.

  5. ARM TR-009

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

    ......... 2 2.2 TWP and NSA Sites......Pacific (TWP) and North Slope of Alaska (NSA) sites: 2.1 SGP Site SIRS instruments: ...

  6. Microsoft Word - lesht.doc

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

    Relative Humidity Climatology at the ARM NSA, SGP, and TWP Climate Research Facility ... ACRF Site Start Date End Date Number of Soundings NSA 04282002 11302003 402 SGP 0501...

  7. ARM - Visiting the TWP

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

    InactiveVisiting the TWP 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 Visiting the TWP Nauru Island from the air. Nauru Island from the air. The Tropical Western Pacific site consists of three diverse climate research facilities in Papua New Guinea, the Republic of Nauru, and Australia. Each

  8. ARM - Data Announcements Article

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

    Bookmark and Share Examples of relative humidity for SGP, NSA, and TWP-Darwin. Examples of relative humidity for SGP, NSA, and TWP-Darwin. The Merged Sounding evaluation product ...

  9. Microsoft PowerPoint - GSWCorr2007Posterb_20070313.ppt

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

    corrections * GSW corrections for TWP and NSA are about half those for SGP * No apparent ... corrections * GSW corrections for TWP and NSA are about half those for SGP * No apparent ...

  10. ARM - NSA Barrow Facility

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

    Barrow Facility NSA Related Links Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA...

  11. ARM - TWP Contacts

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

    Contacts TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection...

  12. ARM - TWP Science

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

    Science TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical...

  13. TWP Darwin Site

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

    Darwin Site-Inactive 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 TWP Darwin Site-Inactive Location: 12° 25' 28.56" S, 130° 53' 29.75" E Altitude: 29.9 meters The third TWP climate research facility was established in April 2002 in Darwin, Northern Territory, Australia. The facility is

  14. ARM TR-008

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

    ... - 8 minutes or 20-second data Where: xxx - the locations of the instrument (nsa, ... Where: xxx - the location of the instrument (nsa, sgp, twp) aeri - the main instrument ...

  15. ARM - NSA Science

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

    AlaskaNSA Science NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Science Scientific objectives for the NSA/AAO site are provided below: Provide the comprehensive data sets necessary to develop and test continually improved algorithms for GCMs to describe radiative transfer and cloud processes at high

  16. ARM - XDC Data Viewers

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

    Viewers XDC Data Viewers Aerosol Properties Plots Composite Images SGP GOES Composite TWP GOES Composite TWP MTSAT Composite HFE MTSAT Composite NSA AVHRR Satellite quick looks SGP Reflectivity Loops for Summer 1997 IOP Hovuller Diagrams SGP GOES Satellite TWP GMS Satellite Landsat Data NSA Landsat TM SGP Landsat TM TWP Landsat TM XDC Data Viewers The XDC provides and maintains the following data viewers. AOS Aerosol Properties Plots: In-situ Aerosol Observing Systems (AOS) plots for SGP, AMF

  17. ARM - NSA Operations

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

    AlaskaNSA Operations NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Operations Barrow Facility Instrumentation at the Barrow facility operates 7 days a week, 24 hours a day, year around. The instrumentation is routinely maintained using an extensive "daily rounds" checklist 5 days a week,

  18. ARM - Visiting the SGP

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

    PlainsVisiting the SGP SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Summer Training SGP Fact Sheet Images Information for Guest Scientists Contacts Visiting the SGP View a custom Google map with driving directions to the SGP Central Facility. View a custom Google map with

  19. SGP and TWP (Manus) Ice Cloud Vertical Velocities (Dataset) ...

    Office of Scientific and Technical Information (OSTI)

    particle terminal fall velocity (Vter) are given at 10s, 20min and 1hr resolution. Retrieved Vair and Vter follow radar notation, so positive values indicate downward motion. ...

  20. ARM - NSA Contacts

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

    Contacts NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Contacts Site Manager - Mark Ivey, Sandia National Laboratories Barrow Site Manager - Dan Lucero, Sandia National Laboratories Barrow Site Facilities Manager - Walter Brower, UIC Science, LLC, Cell: 907.878.4780 Rapid Response Team Manager - Martin

  1. ARM - Visiting the NSA

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

    AlaskaVisiting the NSA NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts Visiting the NSA View a custom Google map with driving directions to the Barrow site. Zoom in on the map for more detail. View a custom Google map with driving directions to the Barrow site. Zoom in on the map for more detail. Safety

  2. ARM - TWP-ICE Maps

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

    TWP-ICE Maps Related Links TWP-ICE Home Tropical Western Pacific Home ARM Data Discovery Browse Data Post-Experiment Data Sets Weather Summary (pdf, 6M) New York Workshop Presentations Experiment Planning TWP-ICE Proposal Abstract Detailed Experiment Description Science Plan (pdf, 1M) Operations Plan (pdf, 321K) Maps Contact Info Related Links Daily Report Report Archives Press Media Coverage TWP-ICE Fact Sheet (pdf, 211K) Press Releases TWP-ICE Images ARM flickr site <=""

  3. ARM - SGP Science

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

    Science SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Summer Training SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Science Overall Objectives The primary goal of the Southern Great Plains (SGP) site is to produce data adequate to support significant

  4. ARM - SGP Extended Facility

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

    Extended Facility SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration...

  5. ARM - SGP Contacts

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

    Contacts SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility...

  6. ARM - SGP Intermediate Facility

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

    Intermediate Facility SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration...

  7. ARM - SGP Central Facility

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

    Central Facility SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration...

  8. ARM - Value-Added Products (VAP)

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

    ASI, AWR, ENA, FKB, GRW, HFE, MAO, NIM, NSA, PGH, PVC, PYE, SGP, SMT, TWP 2005.03.23 ... Properties AWR, FKB, GRW, HFE, MAO, NIM, NSA, PGH, PVC, PYE, SGP 1996.07.02 2016.09.30 ...

  9. NSA Broadband Instrument Study: Update

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

    Broadband Instrument Study: Update PI: Scott Richardson, NSA SST Co-Is: Chuck Long, Tom Stoffel, Ells Dutton, Joe Michalsky, Jeff Zirzow... Background * NSA last site where Diffuse ...

  10. NSA Atqasuk Facility

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

    Inactive NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Atqasuk Facility-Inactive Location: 70° 28' 19.11" N, 157° 24' 28.99" W Altitude: 20 meters The Atqasuk facility, which was part of the larger ARM Climate Research Facility (ARM) North Slope of Alaska site, was installed the summer of

  11. NSA Barrow Facility

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

    Barrow Facility NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Barrow Facility Location: 71° 19' 23.73" N, 156° 36' 56.70" W Altitude: 8 meters The Barrow facility was dedicated in July 1997 and chosen because the Arctic is particularly sensitive to climate changes. Barrow is located at the

  12. ARM - NSA Calendar

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

    Calendar NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Calendar Claire Moffett/Baylor Check on equipment already on site, deliver new filters for sampling, and set up aethalometer 2016.09.20 » 2016.09.22 Danny Donald/SNL Safety observation 2016.09.08 » 2016.09.09 Dave Cook/ANL Point ECOR/SEBS

  13. ARM - SGP Operations

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

    ... which are being outfitted with ARM-provided radio acoustic sounding system (RASS) units. ... the nearby SGP site central facility collects a relative abundance of thermodynamic data. ...

  14. SGP Overview Map

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

    Overview Map SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility...

  15. SGP Shipment Notification Form

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

    PlainsShipment Notification Form SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric...

  16. mccoy_ARM_STM_09_cmbe_v3_final.ppt

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

    Detailed description of the data and the algorithms: http:science.arm.govwgcpmscmbestestimate.html SGP - ARM Southern Great Plains Site, NSA - North Slope of Alaska, TWP...

  17. Orr 2007 ARM STM poster2.ppt

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

    Responsible for management and maintenance of nearly all data and instrument computers as well as personal computers at the ACRF sites (AMF, NSA, SGP and TWP). Cyber...

  18. ARM - TWP Darwin Site - Aussie Trivia

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

    InactiveTWP Darwin Site-InactiveTWP Darwin Site - Aussie Trivia 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 TWP Darwin Site - Aussie Trivia Did you know... The first beer brewed in Australia was in 1796 by John Boston, thus starting Australia's lifelong love for the amber nectar! Christmas is

  19. ARM - SGP Rural Driving Hazards

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

    Rural Driving Hazards SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Summer Training SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Rural Driving Hazards The rural location of the Southern Great Plains (SGP) site facilities requires that visitors travel on

  20. ARM - SGP Radiometric Calibration Facility

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

    Radiometric Calibration Facility SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Summer Training SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Radiometric Calibration Facility The Radiometric Calibration Facility (RCF) provides shortwave radiometer

  1. DOE/SC-ARM/P-07-013

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

    Time Incident or Property Damage Incident, NSA, SGP, & TWP for October 1, 1998 - September ... The OPSMAX for the North Slope Alaska (NSA) locale is 1,987.2 hours (0.90 2,208), and ...

  2. Microsoft Word - fourthqmetric 2.doc

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

    Bias (bottom) 6 3. Comparison of cloud fraction at the NSA. (CAM3Blue, AM2Black). ... at the SGP (top, March 2000), NSA (middle, October 2004) and TWP (bottom, October 2004). ...

  3. Poster_ARM2009M.ppt

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

    Best Estimate (CMBE) products from SGP, NSA and TWP are used to evaluate simulated ... Over the NSA site the winter LWP amount is underestimated. For CC, the model is comparable ...

  4. ARM XDC Datastreams

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

    OK, Topeka, KS, and Dodge City, KS), the NSA (Barrow, AK), and historical data for the ... They contain soundings for a given month. nsa,sgp,twp06snwsupastation.00 Six second ...

  5. ARM XDC Datastreams

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

    polar orbiting satellites taken over the NSA, SHB, SGP and TWP sites are available for ... Channel 1 -4.44908 0.104223 Channel 2 -3.99256 0.10144 For NSA NOAA-14, time dependent ...

  6. ARM TR-008

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

    Time Incident or Property Damage Incident, NSA, SGP, and TWP October 1, 1998 - September ... The OPSMAX for the North Slope Alaska (NSA) locale is 1,987.20 hours (0.90 2,208), and ...

  7. ARM - TWP Nauru Site-Inactive

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

    Site-Inactive TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical...

  8. ARM - Field Campaign - NSA Scanning Radar IOP

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

    Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : NSA Scanning Radar IOP ... Low-level mixed-phase clouds, frequently present over the North Slope of Alaska (NSA) ...

  9. Surface Meteorological Instruments for TWP (SMET) Handbook

    SciTech Connect (OSTI)

    Ritsche, MT

    2009-01-01

    The TWP Surface Meteorology station (SMET) uses mainly conventional in situ sensors to obtain 1-minute statistics of surface wind speed, wind direction, air temperature, relative humidity, barometric pressure and rainfall amount.

  10. ARM - PI Product - SGP and TWP (Manus) Ice Cloud Vertical Velocities

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

    removed, however a multi-layer flag is included. Data Details Contact Heike Kalesse Leibniz Institute for Tropospheric Research kalesse@tropos.de Permoserstr. 15 Leipzig, 04318...

  11. ARM/NSA Vehicle Use Policy

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

    Slope of AlaskaAdjacent Arctic Ocean NSA Tip Tower Lowering Procedure Procedure ... NSAttlRev6.doc 1 ACRFNSAAAO Revision 6 Tip Tower Lowering Procedure November 2006 ...

  12. ARM - SGP Geographic Information By Facility

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

    Geographic Information By Facility SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Summer Training SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Geographic Information By Facility Note: BF = Boundary Facility, EF = Extended Facility, and IF = Intermediate

  13. ARM - Field Campaigns

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

    govCampaignsList of Campaigns Additional Sorting By Site AAF AMF ENA NSA SGP TWP Other By Activity Current Upcoming Past By Year 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 ...

  14. ARM - Field Campaigns

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

    govCampaignsFeatured Additional Sorting By Site AAF AMF ENA NSA SGP TWP Other By Activity Current Upcoming Past By Year 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 ...

  15. ARM - Field Campaigns

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

    govCampaignsCampaign Data Additional Sorting By Site AAF AMF ENA NSA SGP TWP Other By Year 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 ...

  16. ARM - Publications: Science Team Meeting Documents

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

    An Intercomparison of MMCR and NCEP Global Model Cloud Fraction and Cloud Overlap at the ARM SGP, NSA, and TWP Sites Lazarus, S.M.(a) and Krueger, S.K.(b), Florida Institute of ...

  17. 1

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

    to Know ARM ACROSS 2 The Southern ____ Plains site. 5 Teacher ____ lives at the TWP site. 7 ____ Polar Bear lives at the NSA site. 8 ____ Prairie Dog lives at the SGP site. 9 SGP, TWP, and NSA make up the ARM outdoor research ____. DOWN 1 The ____ Program. 3 This is the number of outdoor research sites. 4 The North Slope of ____ site. 5 The ____ Western Pacific site. 6 A polar bear, prairie dog, and turtle make up the ARM ____.

  18. ARM - NSA Atqasuk Facility-Inactive

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

    Atqasuk Facility-Inactive NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Atqasuk Facility-Inactive Location: 70° 28' 19.11" N, 157° 24' 28.99" W Altitude: 20 meters The Atqasuk facility, which was part of the larger ARM Climate Research Facility (ARM) North Slope of Alaska site, was

  19. Interpolation Uncertainties Across the ARM SGP Area

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

    Interpolation Uncertainties Across the ARM SGP Area J. E. Christy, C. N. Long, and T. R. Shippert Pacific Northwest National Laboratory Richland, Washington Interpolation Grids Across the SGP Network Area The U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Program operates a network of surface radiation measurement sites across north central Oklahoma and south central Kansas. This Southern Great Plains (SGP) network consists of 21 sites unevenly spaced from 95.5 to 99.5

  20. Initial results from ensemble SCM simulations of TWP-ICE

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

    9 Status of the TWP Status of the TWP Status of the TWP - - - ICE SCM ICE SCM ICE SCM intercomparison intercomparison intercomparison Laura Davies, Christian Jakob Monash University, Australia Thanks to Kenneth Cheung and Marty Singh March 2009 Outline * Forcing method * Upper level temperature biases? The whys and wherefores.... * Initial single column model results * Future directions * GCSS intercomparison project March 2009 Forcing methods Forcing methods Forcing methods March 2009 Forcing

  1. ARM Tropical Western Pacific (TWP) Operations Management and...

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

    Collaborative Partnerships All three TWP Atmospheric Radiation and Cloud Stations (ARCS) are operated by indigenous staff. In Papua New Guinea (PNG), ARCS operations are performed ...

  2. Darwin: The Third DOE ARM TWP ARCS Site

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

    Tropical Western Pacific (TWP) locale in October 1996 when the first Atmospheric Radiation and Cloud Station (ARCS) began collecting data on Manus Island in Papua New Guinea (PNG). ...

  3. ARM - Tropical Warm Pool - International Cloud Experiment (TWP-ICE)

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

    Related Links TWP-ICE Home Tropical Western Pacific Home ARM Data Discovery Browse Data Post-Experiment Data Sets Weather Summary (pdf, 6M) New York Workshop Presentations Experiment Planning TWP-ICE Proposal Abstract Detailed Experiment Description Science Plan (pdf, 1M) Operations Plan (pdf, 321K) Maps Contact Info Related Links Daily Report Report Archives Press Media Coverage TWP-ICE Fact Sheet (pdf, 211K) Press Releases TWP-ICE Images ARM flickr site <="" li=""

  4. Using ARM TWP Nauru Observations to Evaluate a Simple Thermodynamic...

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

    Using ARM TWP Nauru Observations to Evaluate a Simple Thermodynamic Model of the Subcloud Layer Under Fair-Weather Cumulus Conditions Albrecht, Bruce University of Miami Kollias, ...

  5. Aerosol Retrievals from ARM SGP MFRSR Data (Dataset) | Data Explorer

    Office of Scientific and Technical Information (OSTI)

    Aerosol Retrievals from ARM SGP MFRSR Data Title: Aerosol Retrievals from ARM SGP MFRSR Data The Multi-Filter Rotating Shadowband Radiometer (MFRSR) makes precise simultaneous ...

  6. ARM - Field Campaign - SGP99 IOP

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

    govCampaignsSGP99 IOP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : SGP99 IOP 1999.07.07 - 1999.07.22 Lead Scientist : Richard Cederwall Summary The Southern Great Plains 1997 Hydrology Experiment (SGP97) successfully demonstrated the ability to map and monitor soil moisture using low frequency microwave radiometers (L band, 1.4 GHz). Soil moisture retrieval algorithms developed using higher resolution data were proven to be

  7. ARM - Field Campaign - SGP '97 (Hydrology) IOP

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

    govCampaignsSGP '97 (Hydrology) IOP Campaign Links NASA Archive Model Initialization Data Comments? We would love to hear from you Send us a note below or call us at ...

  8. New Surface Meteorological Measurements at SGP,

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

    NM, March 22 - 26, 2004 1 New Surface Meteorological Measurements at SGP, and Their Use ... Work is in progress to combine the MWR-scaling and time-lag corrections into a new ARM ...

  9. NSA AERI Hatch Correction Data Set

    SciTech Connect (OSTI)

    Turner, David

    2012-03-23

    From 2000-2008, the NSA AERI hatch was determined to be indicated as open too frequently. Analysis suggests that the hatch was actually opening and closing properly but that its status was not being correctly reported by the hatch controller to the datastream. An algorithm was written to determine the hatch status from the observed

  10. ARM - Field Campaign - NSA Snow IOP

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

    We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : NSA Snow IOP 2011.10.01 - 2012.05.31 Lead Scientist : Johannes Verlinde For data ...

  11. Microsoft PowerPoint - TWP_loehnert.ppt

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

    TWP-ICE workshop, GISS, November 13-15, 2006 Integrated ground-based retrievals in Darwin during TWP-ICE (preliminary data available) Ulrich Löhnert & Mario Mech University of Cologne Email: loehnert@meteo.uni-koeln.de Continuous profiing of temperature, humidiyt and liquid water content at the Darwin airport from Jan19-Feb13 TWP-ICE workshop, GISS, November 13-15, 2006 HATPRO-Measurements at Darwin Microwave Profiler HATPRO Start: 19 Jan 2006 6 UTC Stop: 14 Feb 2006 1 UTC Latitude: 12.424

  12. ARM-UAV TWP-ICE Activities and Data

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

    The instrument operational status, data availability and daily flight details for the ARM-UAV Proteus payload flown during the TWP-ICE experiment are presented. Data was also ...

  13. The TWP-ICE CRM Intercomparison Specification and First Results

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

    TWP-ICE CRM Intercomparison Specification and First Results Ann Fridlind (ann.fridlind@nasa.gov), Andrew Ackerman (andrew.ackerman@nasa.gov), Adrian Hill (adrian.hill@metoffice.gov...

  14. ARM XDC Datastreams

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

    ... Site ID Begin Date SGP-E13: ARM CF Lamont, OK SG01 2003-02-12 NSA-C1: Barrow, Alaska SG27 2003-02-12 NSA-C2: Atqasuk, Alaska ATQK 2007-07-15 TWP-C1: Manus Island, Papua New Guinea ...

  15. Investigation of Unusual Albedos in the SGP Domain

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

    Investigation of Unusual Albedos in the SGP Domain Groff, David ARM SGP Duchon, Claude University Of Oklahoma Category: Atmospheric State and Surface We investigate the cause of unusually high albedos at an Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) extended facility near Morris, OK. In a previous study, daily albedos were calculated at several SGP extended facilities for 1998 and 1999 using broadband (.28 to 3 microns) pyranometers. The average daily albedo during this

  16. Radiation Dry Bias in the TWP-ICE Radiosonde Soundings Solar...

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

    Radiation Dry Bias in the TWP-ICE Radiosonde Soundings Solar Zenith Angle Correction ... used in TWP-ICE, is known to be affected by a significant day-time radiation dry bias. ...

  17. Darwin : The Third DOE ARM TWP ARCS Site /

    SciTech Connect (OSTI)

    Clements, William E.; Jones, L. A.; Baldwin, T.; Nitschke, K.

    2002-01-01

    The United States Department of Energy's (DOE) Atmospheric Radiation Measurement (ARM) Program began operations in its Tropical Western Pacific (TWP) locale in October 1996 when the first Atmospheric Radiation and Cloud Station (ARCS) began collecting data on Manus Island in Papua New Guinea (PNG). Two years later, in November 1998, a second ARCS began operations on the island of Nauru in the Central Pacific. Now a third ARCS has begun collecting data in Darwin, Australia. The Manus, Nauru, and Darwin sites are operated through collaborative agreements with the PNG National Weather Service, The Nauru Department of Industry and Economic Development (IED), and the Australian Bureau of Meteorology's (BOM) Special Services Unit (SSU) respectively. All ARM TWP activities in the region are coordinated with the South Pacific Regional Environment Programme (SPREP) based in Apia, Samoa. The Darwin ARM site and its role in the ARM TWP Program are discussed.

  18. Progress on a TWP-ICE Monsoon Case Study

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

    Outline Introduction 25-mb large-scale forcing 10-mb large-scale forcing Tracers Future work Progress on a TWP-ICE Monsoon Case Study Ann Fridlind and Andrew Ackerman * NASA GISS thanks to Jon Petch * ECMWF Shaocheng Xie * LLNL TWP-ICE and ACTIVE Science Teams DOE ARM Program and Data Archive NASA Radiation Sciences Program NASA Advanced Supercomputing Division 18th Annual ARM Science Team Meeting 10 March 2008 Outline Introduction 25-mb large-scale forcing 10-mb large-scale forcing Tracers

  19. Derivation of Seasonal Cloud Properties at ARM-NSA from Multispectral...

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

    Derivation of Seasonal Cloud Properties at ARM-NSA from Multispectral MODIS Data D. A. ... over the Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) Barrow site. ...

  20. ARM - PI Product - NSA AERI Hatch Correction Data Set

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

    ProductsNSA AERI Hatch Correction Data Set 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 PI Product : NSA AERI Hatch Correction Data Set From 2000-2008, the NSA AERI hatch was determined to be indicated as open too frequently. Analysis suggests that the hatch was actually opening and closing properly but that its status was not being correctly reported by the hatch controller to the datastream. An algorithm was

  1. Soundings from SGP, June 2014 Sonde Comparison Study

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

    Jensen, Michael

    2015-03-06

    In early June 2014, a radiosonde intercomparison trial was undertaken at the SGP Central Facility site with the goal of quantifying the relative performance of the RS92-SGP/MW31 and RS41-SG/MW41 radiosondes/systems. The June time period at SGP represents a springtime mid-latitude convective environment where the extensive remote sensing observations at the SGP site were used to further quantify the environment during the intercomparison. Over the course of five days (3 - 8 June) a total of 20 balloon launches were completed with efforts to sample the entire diurnal cycle and a variety of cloud conditions

  2. sgp_stratus_poster_v1.0.ppt

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

    forcing, large-scale vertical velocity, and latent and sensible heat flux. Introduction LES (SAMEX) baseline WACR profiles (in blue) LES statistics for the SGP stratus control...

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

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

    The SGP Aerosol Best-Estimate Value-Added Procedure and Its Impact on the BBHRP Project Turner, David Pacific Northwest National Laboratory Sivaraman, Chitra Pacific Northwest...

  4. Soundings from SGP, June 2014 Sonde Comparison Study

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

    Jensen, Michael

    In early June 2014, a radiosonde intercomparison trial was undertaken at the SGP Central Facility site with the goal of quantifying the relative performance of the RS92-SGP/MW31 and RS41-SG/MW41 radiosondes/systems. The June time period at SGP represents a springtime mid-latitude convective environment where the extensive remote sensing observations at the SGP site were used to further quantify the environment during the intercomparison. Over the course of five days (3 - 8 June) a total of 20 balloon launches were completed with efforts to sample the entire diurnal cycle and a variety of cloud conditions

  5. Microsoft PowerPoint - nsa_shippingforminstructions.ppt

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

    existing record (change data or add receive information) requires a login with username and password. At this point in time, we will be limiting this to NSA operations personnel. ...

  6. Naval Support Activity (NSA) in Bethesda Employment Education Fair

    Office of Energy Efficiency and Renewable Energy (EERE)

    Location: NSA Bethesda Fitness Center (Gymnasium, Bldg 17), 8901 Wisconsin Ave., Bethesda, MD 20889Attendees: Donna Friend (HC) and Rauland Sharp (HC)POC: Donna FriendWebsite: http://bit.ly/1yTjTNu

  7. Lagrangian Diagnostics of Tropical Cirrus over TWP CART Sites

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

    Lagrangian Diagnostics of Tropical Cirrus over TWP CART Sites Horvath, Akos University of Miami Soden, Brian UM/RSMAS Category: Cloud Properties Cirrus clouds associated with tropical deep convection play an important role in regulating Earth's climate by influencing the radiative and moisture budgets of the upper troposphere. In this study, we sought to better understand the evolution of such clouds using geostationary satellite observations coupled with ground-based radar and lidar

  8. Finite Cloud Effects at the ACRF TWP Site Patrick Taylor and...

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

    Patrick Taylor and Robert G. Ellingson Dept. of Meteorology, Florida State University, Tallahassee, FL 32306 Data: Observations are taken at the ACRF TWP Site from June 1999 ...

  9. New Eddy Correlation System for ARM SGP Site

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

    New Eddy Correlation System for ARM SGP Site M. S. Pekour Argonne National Laboratory ... of 2002. Development and testing of a new ECOR system began in November 2002; field ...

  10. Senator Myers Tours SGP CART Site Technical Contact: James C...

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

    Senator Myers Tours SGP CART Site Technical Contact: James C. Liljegren Phone: 630-252-9540 Email: jcliljegren@anl.gov Editor: Donna J. Holdridge ANLERNL-03-06 www.arm.gov ARM...

  11. An Overview of the SGP Tandem Differential Mobility Analyzer

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

    An Overview of the SGP Tandem Differential Mobility Analyzer Collins, Don Texas A&M University Spencer, Chance Texas A&M University Category: Instruments A differential mobility analyzer / tandem differential mobility analyzer (DMA / TDMA) system was integrated into the Aerosol Observing System (AOS) trailer at the SGP site in September, 2005. This instrument is used to continuously characterize the size-resolved concentration, hygroscopicity, and volatility of submicron particles. These

  12. New Atmospheric Profiling Instrument Added to SGP CART Suite

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

    3 New Atmospheric Profiling Instrument Added to SGP CART Suite A new atmospheric profiling instrument at the SGP CART site is giving researchers an additional useful data stream. The new instrument is a microwave radiometer profiler (MWRP) developed by Radiometrics Corporation. One ARM Program focus is improving the quality of simulations by global climate models, particularly models that deal with interactions between sunlight (solar radiation) and clouds. To support this improvement, ARM needs

  13. Continental Liquid-phase Stratus Clouds at SGP: Meteorological Influences

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

    and Relationship to Adiabacity Continental Liquid-phase Stratus Clouds at SGP: Meteorological Influences and Relationship to Adiabacity Kim, Byung-Gon Kangnung National University Schwartz, Stephen Brookhaven National Laboratory Miller, Mark Brookhaven National Laboratory Min, Qilong State University of New York at Albany Category: Cloud Properties The microphysical properties of continental stratus clouds observed over SGP appear to be substantially influenced by micrometeorological

  14. Radiative Closure Studies at the NSA ACRF Site

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

    Radiative Closure Studies at the NSA ACRF Site Delamere, Jennifer Atmospheric and Environmental Research, Inc. Mlawer, Eli Atmospheric & Environmental Research, Inc. Turner, David University of Wisconsin-Madison Clough, Shepard Atmospheric and Environmental Research Jensen, Michael Brookhaven National Laboratory Miller, Mark Brookhaven National Laboratory Johnson, Karen Brookhaven National Laboratory Troyan, David Brookhaven National Laboratory Shippert, Timothy Pacific Northwest National

  15. ARM - Publications: Science Team Meeting Documents

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

    The ARM-UAV Grand Tour, SGP, NSA, TWP Tooman, T.T., Bolton, W.B.(a), and McCoy, R.F.(a), ... The ARM-UAV Fall 2002 experiment was the first experiment in the grand tour of the three ...

  16. Progress on an ARM/GCSS/SPARC TWP-ICE Monsoon Case Study

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

    Progress on an ARMGCSSSPARC TWP-ICE Monsoon Case Study Ann Fridlind and Andrew Ackerman ann.fridlind@nasa.gov * www.giss.nasa.govfridlind Introduction Source: Lori Chappel, ...

  17. ARM Carbon Cycle Gases Flasks at SGP Site

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

    Biraud, Sebastien

    2013-03-26

    Data from flasks are sampled at the Atmospheric Radiation Measurement Program ARM, Southern Great Plains Site and analyzed by the National Oceanic and Atmospheric Administration NOAA, Earth System Research Laboratory ESRL. The SGP site is included in the NOAA Cooperative Global Air Sampling Network. The surface samples are collected from a 60 m tower at the ARM SGP Central Facility, usually once per week in the afternoon. The aircraft samples are collected approximately weekly from a chartered aircraft, and the collection flight path is centered over the tower where the surface samples are collected. The samples are collected by the ARM and LBNL Carbon Project.

  18. ARM - PI Product - Aerosol Retrievals from ARM SGP MFRSR Data

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

    ProductsAerosol Retrievals from ARM SGP MFRSR Data 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 PI Product : Aerosol Retrievals from ARM SGP MFRSR Data The Multi-Filter Rotating Shadowband Radiometer (MFRSR) makes precise simultaneous measurements of the solar direct normal and diffuse horizontal irradiances at six wavelengths (nominally 415, 500, 615, 673, 870, and 940 nm) at short intervals (20 sec for ARM

  19. ARM - Field Campaign - SGP Ice Nuclei Characterization Experiment

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

    govCampaignsSGP Ice Nuclei Characterization Experiment Campaign Links Field Campaign Report 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 Campaign : SGP Ice Nuclei Characterization Experiment 2014.04.22 - 2014.06.14 Lead Scientist : Paul DeMott For data sets, see below. Abstract Ice nucleating particles are required to trigger the formation of ice crystals in the mixed-phase (liquid and ice) regions of clouds,

  20. ARM Carbon Cycle Gases Flasks at SGP Site (Dataset) | Data Explorer

    Office of Scientific and Technical Information (OSTI)

    Carbon Cycle Gases Flasks at SGP Site Title: ARM Carbon Cycle Gases Flasks at SGP Site Data from flasks are sampled at the Atmospheric Radiation Measurement Program ARM, Southern ...

  1. Microsoft Word - shi_y.doc

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

    analyses for the ARM Tropical Western Pacific (TWP) and North Slope of Alaska (NSA) sites. ... Methodology At the TWP and NSA measurement sites, the surface broadband radiation ...

  2. Cloud Properties and Radiative Heating Rates for TWP

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

    Comstock, Jennifer

    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.

  3. Cloud Properties and Radiative Heating Rates for TWP

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

    Comstock, Jennifer

    2013-11-07

    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.

  4. Use of ARM/NSA Data to Validate and Improve the Remote Sensing...

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

    ARMNSA Data to Validate and Improve the Remote Sensing Retrieval of Cloud and Surface ... North Slope of Alaska (NSA) through the Atmospheric Radiation Measurement (ARM) Program. ...

  5. ARM - VAP Product - armbeatm

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

    Productsarmbearmbeatm Documentation Data Management Facility Plots (Quick Looks) Citation DOI: 10.5439/1095313 DOI: 10.5439/1039931 Central Facility, Lamont, OK (SGP C1) DOI: 10.5439/1039932 Central Facility, Barrow AK (NSA C1) DOI: 10.5439/1039933 Central Facility, Manus I., PNG (TWP C1) DOI: 10.5439/1039934 Central Facility, Nauru Island (TWP C2) DOI: 10.5439/1039935 Central Facility, Darwin, Australia (TWP C3) [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We

  6. ARM - VAP Product - armbecldrad

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

    Productsarmbearmbecldrad Documentation Data Management Facility Plots (Quick Looks) Citation DOI: 10.5439/1095314 DOI: 10.5439/1039926 Central Facility, Lamont, OK (SGP C1) DOI: 10.5439/1039927 Central Facility, Barrow AK (NSA C1) DOI: 10.5439/1039928 Central Facility, Manus I., PNG (TWP C1) DOI: 10.5439/1039929 Central Facility, Nauru Island (TWP C2) DOI: 10.5439/1039930 Central Facility, Darwin, Australia (TWP C3) [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We

  7. CIMEL Measurements of Zenith Radiances at the ARM SGP Site

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

    CIMEL Measurements of Zenith Radiances at the ARM SGP Site W. J. Wiscombe National Aeronautics and Space Administration Goddard Space Flight Center Climate and Radiation Branch Greenbelt, Maryland A. Marshak and K. Evans Joint Center for Earth Systems Technology University of Maryland Baltimore, Maryland Y. Knyazikhin Department of Geography Boston University Boston, Massachusetts H. W. Barker Environment Canada Downsview, Ontario, Canada C. F. Pavloski Department of Meteorology Pennsylvania

  8. ARM - PI Product - Cloud Properties and Radiative Heating Rates for TWP

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

    ProductsCloud Properties and Radiative Heating Rates for TWP 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 PI Product : Cloud Properties and Radiative Heating Rates for TWP 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

  9. ARM - Field Campaign - AIRS Validation Soundings Phase IV and V-TWP

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

    IV and V-TWP 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 Campaign : AIRS Validation Soundings Phase IV and V-TWP 2005.07.03 - 2006.05.05 Lead Scientist : Jimmy Voyles For data sets, see below. Abstract ARM conducted a special series of radiosonde launches in support of validation studies for the Atmospheric Infrared Sounder (AIRS) instrument aboard NASA's Aqua satellite (http://www-airs.jpl.nasa.gov). The AIRS

  10. ARM - Field Campaign - ARM Radiosondes for NPOESS/NPP Validation - TWP

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

    govCampaignsARM Radiosondes for NPOESS/NPP Validation - TWP 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 Campaign : ARM Radiosondes for NPOESS/NPP Validation - TWP 2012.07.09 - 2014.12.31 Lead Scientist : David Tobin For data sets, see below. Abstract This was a satellite validation project involving the use of satellite overpass coincident radiosonde launches. This was analogous to previous IOPs performed for

  11. Atmospheric Radiation Measurement (ARM) Data from the Tropical Western Pacific (TWP) Site.

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

    ARM maintains four major, permanent sites for data collection and deploys the ARM Mobile Facility to other sites as determined. The Tropical Western Pacific (TWP) site is one of the four fixed sites. It consists of three climate research facilities; the Manus facility on Los Negros Island in Manus, Papua New Guinea (established in 1996); the Nauru facility on Nauru Island, Republic of Nauru (1998); and the Darwin facility in Darwin, Northern Territory, Australia (2002). The operations are supported by government agencies in each host country. Covering the area roughly between 10 degrees N and 10 degrees S of the equator and from 130 degrees E to 167 degrees E, the TWP locale includes a region that plays a large role in the interannual variability observed in the global climate system. More than 250,000 TWP data sets from 1996 to the present reside in the ARM Archive. Begin at the TWP information page for links or access data directly from the ARM Archive at http://www.archive.arm.gov/. Users will need to register for a password, but all files are then free for viewing or downloading. The ARM Archive physically resides at the Oak Ridge National Laboratory.

  12. ARM - PI Product - Soundings from SGP, June 2014 Sonde Comparison Study

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

    ProductsSoundings from SGP, June 2014 Sonde Comparison Study 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 PI Product : Soundings from SGP, June 2014 Sonde Comparison Study [ ARM research ] The data set contains the measurements for 40 sondes launched at SGP in June 2014, for a radiosonde intercomparison. Purpose In early June 2014, a radiosonde intercomparison trial was undertaken at the SGP Central Facility site

  13. Determination of Ice Water Path Over the ARM SGP Using Combined...

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

    Determination of Ice Water Path Over the ARM SGP Using Combined Surface and Satellite ... Global information of cloud ice water path (IWP) is urgently needed for testing ...

  14. ARM: Fractional cloud cover, clear-sky and all-sky shortwave flux for each of 25 individual SGP facilities.

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

    Krista Gaustad; Laura Riihimaki

    Fractional cloud cover, clear-sky and all-sky shortwave flux for each of 25 individual SGP facilities.

  15. ARM: Fractional cloud cover, clear-sky and all-sky shortwave flux for each of 25 individual SGP facilities.

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

    Krista Gaustad; Laura Riihimaki

    1997-01-01

    Fractional cloud cover, clear-sky and all-sky shortwave flux for each of 25 individual SGP facilities.

  16. Atmospheric Radiation Measurement (ARM) Data from the Tropical Western Pacific (TWP) Site.

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

    The Atmospheric Radiation Measurement (ARM) Program is the largest global change research program supported by the U.S. Department of Energy. The primary goal of the ARM Program is to improve the treatment of cloud and radiation physics in global climate models in order to improve the climate simulation capabilities of these models. To achieve this goal, ARM scientists and researchers around the world use continuous data obtained through the ARM Climate Research Facility. ARM maintains four major, permanent sites for data collection and deploys the ARM Mobile Facility to other sites as determined. The Tropical Western Pacific (TWP) site is one of the four fixed sites. It consists of three climate research facilities; the Manus facility on Los Negros Island in Manus, Papua New Guinea (established in 1996); the Nauru facility on Nauru Island, Republic of Nauru (1998); and the Darwin facility in Darwin, Northern Territory, Australia (2002). The operations are supported by government agencies in each host country. Covering the area roughly between 10 degrees N and 10 degrees S of the equator and from 130 degrees E to 167 degrees E, the TWP locale includes a region that plays a large role in the interannual variability observed in the global climate system. More than 250,000 TWP data sets from 1996 to the present reside in the ARM Archive. Begin at the TWP information page for links or access data directly from the ARM Archive at http://www.archive.arm.gov/. Users will need to register for a password, but all files are then free for viewing or downloading. The ARM Archive physically resides at the Oak Ridge National Laboratory.

  17. Validation of Cloud Properties Derived from GOES-9 Over the ARM TWP Region

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

    Cloud Properties Derived from GOES-9 Over the ARM TWP Region M. M. Khaiyer, M. L. Nordeen, D. R. Doelling, and V. Chakrapani Analytical Services and Materials, Inc. Hampton, Virginia P. Minnis and W. L. Smith, Jr. Atmospheric Sciences National Aeronautic and Space Administration Langley Research Center Hampton, Virginia Introduction Satellite data are essential for monitoring clouds and radiative fluxes where ground-based instruments are unavailable. On April 24, 2003, the ninth geostationary

  18. Microsoft PowerPoint - TWP-ICE_2006Nov_Rad.ppt

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

    TWP-ICE: Surface Radiation Chuck Long PNNL ARM Atmospheric Radiation Measurement Radiation Sites ARM Atmospheric Radiation Measurement Available Data ARM Atmospheric Radiation Measurement Normalization * Howard Springs, Darwin Harbor, Fogg Dam, Daly River radiometer comparison pre-experiment * Cape Don and Garden Point radiometer comparison post-experiment * Southern Surveyor? * Dimona post-experiment comparison failed ARM Atmospheric Radiation Measurement PRP Tilt Correction Current data not

  19. Cumulus Geometry from Satellite and Surface Data at the ARM TWP Site

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

    Cumulus Geometry from Satellite and Surface Data at the ARM TWP Site E. I. Kassianov, T. P. Ackerman, and R. T. Marchand Pacific Northwest National Laboratory Richland, Washington Introduction The multi-angle imaging spectrometer (MISR), a sensor on board the earth observing system (EOS) Terra satellite platform, observes reflected radiation in nine directions with high resolution (~0.275 km). The overall mission of the MISR is to provide continuous, global multi-angle measurements of the

  20. A Comparison of Model Short-Range Forecasts and the ARM Microbase Data Fourth Quarter ARM Science Metric

    SciTech Connect (OSTI)

    Hnilo, J.

    2006-09-19

    For the fourth quarter ARM metric we will make use of new liquid water data that has become available, and called the “Microbase” value added product (referred to as OBS, within the text) at three sites: the North Slope of Alaska (NSA), Tropical West Pacific (TWP) and the Southern Great Plains (SGP) and compare these observations to model forecast data. Two time periods will be analyzed March 2000 for the SGP and October 2004 for both TWP and NSA. The Microbase data have been averaged to 35 pressure levels (e.g., from 1000hPa to 100hPa at 25hPa increments) and time averaged to 3hourly data for direct comparison to our model output.

  1. A comparison of model short-range forecasts and the ARM Microbase data

    SciTech Connect (OSTI)

    Hnilo, J J

    2006-09-22

    For the fourth quarter ARM metric we will make use of new liquid water data that has become available, and called the 'Microbase' value added product (referred to as OBS, within the text) at three sites: the North Slope of Alaska (NSA), Tropical West Pacific (TWP) and the Southern Great Plains (SGP) and compare these observations to model forecast data. Two time periods will be analyzed March 2000 for the SGP and October 2004 for both TWP and NSA. The Microbase data have been averaged to 35 pressure levels (e.g., from 1000hPa to 100hPa at 25hPa increments) and time averaged to 3hourly data for direct comparison to our model output.

  2. ARM - Publications: Science Team Meeting Documents

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

    Long Term AERI Data Summaries or Spectral Radiance Data for Testing Climate Models Tobin, D., Revercomb, H., Knuteson, R.O., Best, F., Dedecker, R., Howell, H.B., Garcia, R., and Feltz, W., University of Wisconsin-Madison Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Atmospheric Emitted Radiance Interferometer (AERI) data collection has been on-going at the SGP, NSA, and TWP ARM sites for a number of years now. This poster presents long term trends and distributions of

  3. How is the Data Quality Office Doing?

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

    How is the Data Quality Office Doing? K. L. Sonntag, R. A. Peppler, A. R. Dean, and C. M. Shafer Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma Introduction The Atmospheric Radiation Measurement (ARM) Program has collected data from its Southern Great Plains (SGP) climate research facility since late 1992, from its Tropical Western Pacific (TWP) site since 1996, and from its North Slope of Alaska (NSA) site since 1997. There are numerous

  4. knuteson-99.PDF

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

    Observations at the ARM SGP, NSA, and TWP CART Sites R. O. Knuteson, H. E. Revercomb, F. A. Best, R. G. Dedecker, R. G. Garcia, H. B. Howell, D. C. Tobin, and V. P. Walden Space Science and Engineering Center University of Wisconsin Madison, Wisconsin Introduction A total of eight Atmospheric Emitted Radiance Interferometer (AERI) systems, developed at the University of Wisconsin-Madison Space Science and Engineering Center (UW-SSEC) for the measurement of the downwelling infrared radiance

  5. liljegren-98.pdf

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

    Improved Retrieval of Cloud Liquid Water Path J. C. Liljegren Ames Laboratory Ames, Iowa Introduction The Atmospheric Radiation Measurement (ARM) Program has deployed dual-frequency microwave water radiometers (MWRs) (Liljegren 1994) at its Cloud and Radiation Testbed (CART) sites in the U. S. Southern Great Plains (SGP), the Tropical Western Pacific (TWP), and the North Slope of Alaska/Adjacent Arctic Ocean (NSA/AAO). Although the integrated water vapor amount provided by these instruments has

  6. Radiation Measurement (ARM) Climate Research

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

    overview Sponsored by the U.S. Department of Energy's (DOE) Office of Science, the Atmospheric Radiation Measurement (ARM) Climate Research Facility was established in 1990 to improve global climate models by increasing understanding of clouds and radiative feedbacks. Through the ARM Facility, DOE funded the development of highly instrumented research sites at strategic locations around the world: the Southern Great Plains (SGP), Tropical Western Pacific (TWP), and North Slope of Alaska (NSA).

  7. Data Management Facility Operations Plan

    SciTech Connect (OSTI)

    Keck, Nicole N

    2014-06-30

    The Data Management Facility (DMF) is the data center that houses several critical Atmospheric Radiation Measurement (ARM) Climate Research Facility services, including first-level data processing for the ARM Mobile Facilities (AMFs), Eastern North Atlantic (ENA), North Slope of Alaska (NSA), Southern Great Plains (SGP), and Tropical Western Pacific (TWP) sites, as well as Value-Added Product (VAP) processing, development systems, and other network services.

  8. ARM - Publications: Science Team Meeting Documents: Clouds over the ARM SGP

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

    Network area - 3D prospective Clouds over the ARM SGP Network area - 3D prospective Genkova, Iliana University of Illinois-Champaign Long, Chuck Pacific Northwest National Laboratory Minnis, Patrick NASA Langley Research Center Heck, Patrick University of Wisconsin Khaiyer, Mandana Analytical Services and Material, Inc. The poster will present the final product of a 3-dimentional characterization of the clouds over the ARM SGP network area. We have aquired various ground-based and satellite

  9. Broadband Heating Rate Profile Project (BBHRP) - SGP ripbe1mcfarlane

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

    Riihimaki, Laura; Shippert, Timothy

    2014-11-05

    The objective of the ARM Broadband Heating Rate Profile (BBHRP) Project is to provide a structure for the comprehensive assessment of our ability to model atmospheric radiative transfer for all conditions. Required inputs to BBHRP include surface albedo and profiles of atmospheric state (temperature, humidity), gas concentrations, aerosol properties, and cloud properties. In the past year, the Radiatively Important Parameters Best Estimate (RIPBE) VAP was developed to combine all of the input properties needed for BBHRP into a single gridded input file. Additionally, an interface between the RIPBE input file and the RRTM was developed using the new ARM integrated software development environment (ISDE) and effort was put into developing quality control (qc) flags and provenance information on the BBHRP output files so that analysis of the output would be more straightforward. This new version of BBHRP, sgp1bbhrpripbeC1.c1, uses the RIPBE files as input to RRTM, and calculates broadband SW and LW fluxes and heating rates at 1-min resolution using the independent column approximation. The vertical resolution is 45 m in the lower and middle troposphere to match the input cloud properties, but is at coarser resolution in the upper atmosphere. Unlike previous versions, the vertical grid is the same for both clear-sky and cloudy-sky calculations.

  10. Broadband Heating Rate Profile Project (BBHRP) - SGP ripbe370mcfarlane

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

    Riihimaki, Laura; Shippert, Timothy

    2014-11-05

    The objective of the ARM Broadband Heating Rate Profile (BBHRP) Project is to provide a structure for the comprehensive assessment of our ability to model atmospheric radiative transfer for all conditions. Required inputs to BBHRP include surface albedo and profiles of atmospheric state (temperature, humidity), gas concentrations, aerosol properties, and cloud properties. In the past year, the Radiatively Important Parameters Best Estimate (RIPBE) VAP was developed to combine all of the input properties needed for BBHRP into a single gridded input file. Additionally, an interface between the RIPBE input file and the RRTM was developed using the new ARM integrated software development environment (ISDE) and effort was put into developing quality control (qc) flags and provenance information on the BBHRP output files so that analysis of the output would be more straightforward. This new version of BBHRP, sgp1bbhrpripbeC1.c1, uses the RIPBE files as input to RRTM, and calculates broadband SW and LW fluxes and heating rates at 1-min resolution using the independent column approximation. The vertical resolution is 45 m in the lower and middle troposphere to match the input cloud properties, but is at coarser resolution in the upper atmosphere. Unlike previous versions, the vertical grid is the same for both clear-sky and cloudy-sky calculations.

  11. ARM - PI Product - Merged MMCR-WSR88D Reflectivities at SGP

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

    ProductsMerged MMCR-WSR88D Reflectivities at SGP 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 PI Product : Merged MMCR-WSR88D Reflectivities at SGP There are substantial attenuations of MMCR signals for very large LWP and during precipitation events. We have used the nearest precipitation radar (WSR-88D) to merge two measurements to better represent such selected cases. In the near future, we are going to provide

  12. ARM - Field Campaign - AIRS Validation Soundings Phase IV and V-SGP

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

    govCampaignsAIRS Validation Soundings Phase IV and V-SGP 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 Campaign : AIRS Validation Soundings Phase IV and V-SGP 2005.08.04 - 2006.04.19 Lead Scientist : Jimmy Voyles For data sets, see below. Abstract ARM conducted a special series of radiosonde launches in support of validation studies for the Atmospheric Infrared Sounder (AIRS) instrument aboard NASA's Aqua

  13. ARM - Field Campaign - ARM Radiosondes for NPOESS/NPP Validation - SGP

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

    govCampaignsARM Radiosondes for NPOESS/NPP Validation - SGP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : ARM Radiosondes for NPOESS/NPP Validation - SGP 2012.07.09 - 2017.12.31 Lead Scientist : Lori Borg For data sets, see below. Abstract This is a satellite validation project involving the use of satellite overpass coincident radiosonde launches. This is analogous to previous IOPs performed for AIRS on the NASA Aqua platform and

  14. ARM - Field Campaign - Ground-based Cloud Tomography Experiment at SGP

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

    govCampaignsGround-based Cloud Tomography Experiment at SGP 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 Campaign : Ground-based Cloud Tomography Experiment at SGP 2009.05.26 - 2009.07.17 Lead Scientist : Dong Huang For data sets, see below. Abstract Knowledge of 3D cloud properties is pressingly needed in many research fields. One of the problems encountered when trying to represent 3D cloud fields in numerical

  15. ARM Quick-looks Database for North Slope Alaska (NSA) sites

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

    Stamnes, Knut [NSA Site Scientist

    From these pages one can monitor parts of the data acquisition process and access daily data visualizations from the different instruments. These data visualizations are produced in near real time automatically and are called Quick-Looks (QLs). The quick-looks contains unofficial data of unknown quality. Once data is released one can obtain the full data-set from any instrument available, and along with that, a statement about the data quality from the ARM archive. The database provides Quick-looks for the Barrow ACRF site (NSA C1), the Atqasuk ACRF site (NSA C2), or the SHEBA ice campaign of 1997 and 1998. As of 12-17-08, the database had more than 528,000 quick-looks available as data figures and data plots. No password is required for Quick-look access. (Specialized Interface)

  16. Analysis of Selected Radiosonde Data from the ARM/NSA Site

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

    Analysis of Selected Radiosonde Data from the ARM/NSA Site B. Petracca, H. W. Church, and B. D. Zak Sandia National Laboratories Albuquerque, New Mexico R. Storvold and C. Marty Geophysical Institute University of Alaska Fairbanks, Alaska B. M. Lesht Argonne National Laboratories Argonne, Illinois Introduction The purpose of this study was to analyze differences in temperature and relative humidity (RH) profiles obtained from near-simultaneous radiosonde soundings made from different locations

  17. Atmospheric Radiation Measurement (ARM) Data from the North Slope Alaska (NSA) Site

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

    The Atmospheric Radiation Measurement (ARM) Program is the largest global change research program supported by the U.S. Department of Energy. The primary goal of the ARM Program is to improve the treatment of cloud and radiation physics in global climate models in order to improve the climate simulation capabilities of these models. To achieve this goal, ARM scientists and researchers around the world use continuous data obtained through the ARM Climate Research Facility. ARM maintains four major, permanent sites for data collection and deploys the ARM Mobile Facility to other sites as determined. The North Slope of Alaska (NSA) site is a permanent site providing data about cloud and radiative processes at high latitudes. These data are being used to refine models and parameterizations as they relate to the Arctic. Centered at Barrow and extending to the south (to the vicinity of Atqasuk), west (to the vicinity of Wainwright), and east (towards Oliktok), the NSA site has become a focal point for atmospheric and ecological research activity on the North Slope. Approximately 300,000 NSA data sets from 1993 to the present reside in the ARM Archive at http://www.archive.arm.gov/. Users will need to register for a password, but all files are then free for viewing or downloading. The ARM Archive physically resides at the Oak Ridge National Laboratory.

  18. Multi-Filter Rotating Shadowband Radiometers Mentor Report and Baseline Surface Radiation Network Submission Status

    SciTech Connect (OSTI)

    Hodges, G.

    2005-03-18

    There are currently twenty-four Multi-Filter Rotating Shadowband Radiometers (MFRSR) operating within Atmospheric Radiation Measurement (ARM). Eighteen are located within the Southern Great Plains (SGP) region, there is one at each of the North Slope of Alaska (NSA) and Tropical Western Pacific (TWP) sites, and one is part of the instrumentation of the ARM Mobile Facility. At this time there are four sites, all extended facilities within the SGP, that are equipped for a MFRSR but do not have one due to instrument failure and a lack of spare instruments. In addition to the MFRSRs, there are three other MFRSR derived instruments that ARM operates. They are the Multi-Filter Radiometer (MFR), the Normal Incidence Multi-Filter Radiometer (NIMFR) and the Narrow Field of View (NFOV) radiometer. All are essentially just the head of a MFRSR used in innovative ways. The MFR is mounted on a tower and pointed at the surface. At the SGP Central Facility there is one at ten meters and one at twenty-five meters. The NSA has a MFR at each station, both at the ten meter level. ARM operates three NIMFRs; one is at the SGP Central Facility and one at each of the NSA stations. There are two NFOVs, both at the SGP Central Facility. One is a single channel (870) and the other utilizes two channels (673 and 870).

  19. A Single Column Model Ensemble Approach Applied to the TWP-ICE Experiment

    SciTech Connect (OSTI)

    Davies, Laura; Jakob, Christian; Cheung, K.; Del Genio, Anthony D.; Hill, Adrian; Hume, Timothy; Keane, R. J.; Komori, T.; Larson, Vincent E.; Lin, Yanluan; Liu, Xiaohong; Nielsen, Brandon J.; Petch, Jon C.; Plant, R. S.; Singh, M. S.; Shi, Xiangjun; Song, X.; Wang, Weiguo; Whitall, M. A.; Wolf, A.; Xie, Shaocheng; Zhang, Guang J.

    2013-06-27

    Single column models (SCM) are useful testbeds for investigating the parameterisation schemes of numerical weather prediction and climate models. The usefulness of SCM simulations are limited, however, by the accuracy of the best-estimate large-scale data prescribed. One method to address this uncertainty is to perform ensemble simulations of the SCM. This study first derives an ensemble of large-scale data for the Tropical Warm Pool International Cloud Experiment (TWP-ICE) based on an estimate of a possible source of error in the best-estimate product. This data is then used to carry out simulations with 11 SCM and 2 cloud-resolving models (CRM). Best-estimate simulations are also performed. All models show that moisture related variables are close to observations and there are limited differences between the best-estimate and ensemble mean values. The models, however, show different sensitivities to changes in the forcing particularly when weakly forced. The ensemble simulations highlight important differences in the moisture budget between the SCM and CRM. Systematic differences are also apparent in the ensemble mean vertical structure of cloud variables. The ensemble is further used to investigate relations between cloud variables and precipitation identifying large differences between CRM and SCM. This study highlights that additional information can be gained by performing ensemble simulations enhancing the information derived from models using the more traditional single best-estimate simulation.

  20. Atmospheric Radiation Measurement (ARM) Data from the Southern Great Plains (SGP) Site

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

    The Atmospheric Radiation Measurement (ARM) Program is the largest global change research program supported by the U.S. Department of Energy. The primary goal of the ARM Program is to improve the treatment of cloud and radiation physics in global climate models in order to improve the climate simulation capabilities of these models. To achieve this goal, ARM scientists and researchers around the world use continuous data obtained through the ARM Climate Research Facility. ARM maintains four major, permanent sites for data collection and deploys the ARM Mobile Facility to other sites as determined. Scientists are using the information obtained from the permanent SGP site to improve cloud and radiative models and parameterizations and, thereby, the performance of atmospheric general circulation models used for climate research. More than 30 instrument clusters have been placed around the SGP site. The locations for the instruments were chosen so that the measurements reflect conditions over the typical distribution of land uses within the site. The continuous observations at the SGP site are supplemented by intensive observation periods, when the frequency of measurements is increased and special measurements are added to address specific research questions. During such periods, 2 gigabytes or more of data (two billion bytes) are generated daily. SGP data sets from 1993 to the present reside in the ARM Archive at http://www.archive.arm.gov/ http. Users will need to register for a password, but all files are then free for viewing or downloading. The ARM Archive physically resides at the Oak Ridge National Laboratory.

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

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

    Satellite-Derived Liquid Water Paths Using ARM SGP Microwave Radiometers M. M. Khaiyer and J. Huang Analytical Services & Materials, Inc. Hampton, Virginia P. Minnis, B. Lin, and W. L. Smith, Jr. National Aeronautics and Space Administration Langley Research Center Hampton, Virginia A. Fan Science Applications International Corporation Hampton, Virginia A. Rapp Colorado State University Fort Collins, Colorado Introduction Satellites are useful for monitoring climatological parameters over

  2. Improved ARM-SGP TOA OLR Fluxes from GOES-8 IR Radiances Based on CERES Data

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

    ARM-SGP TOA OLR Fluxes from GOES-8 IR Radiances Based on CERES Data D. R. Doelling and M. M. Khaiyer Analytical Services and Materials, Inc. Hampton, Virginia P. Minnis National Aeronautics and Space Administration Langley Research Center Hampton, Virginia Introduction The radiation budget at the top of the atmosphere (TOA) is a quantity of fundamental importance to the Atmospheric Radiation Measurement (ARM) Program. Thus, it is necessary to measure the radiation budget components, broadband

  3. Infrared Land Surface Emissivity in the Vicinity of the ARM SGP Central Facility

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

    Infrared Land Surface Emissivity in the Vicinity of the ARM SGP Central Facility R. O. Knuteson, R. G. Dedecker, W. F. Feltz, B. J. Osbourne, H. E. Revercomb, and D. C. Tobin Space Science and Engineering Center University of Wisconsin-Madison Madison, Wisconsin Introduction The University of Wisconsin Space Science and Engineering Center (UW-SSEC) has developed, under National Aeronautics and Space Administration (NASA) funding, a model for the infrared land surface emissivity (LSE) in the

  4. Initial Evaluation of the Cumulus Potential Scheme at the ACRF SGP Site

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

    Meeting, 12 March 2008 Initial Evaluation of the Cumulus Potential Scheme at the ACRF SGP Site Larry K. Berg, William I. Gustafson Jr., and Evgueni I. Kassianov Pacific Northwest National Laboratory ARM Science Team Meeting, 12 March 2008 Where are We Going? Development Simulation Evaluation Observations ARM Science Team Meeting, 12 March 2008 Development: Coupling Clouds to the Convective Boundary Layer * Shallow cumuli are turbulently coupled to the planetary boundary layer 4 3 2 1 0 Height

  5. Investigation of SGP Atmospheric Moisture Budget for CLASIC … Recycling Study

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

    SGP Atmospheric Moisture Budget for CLASIC - Recycling Study Contributors Peter Lamb, Diane Portis, Daniel Hartsock Background * Motivation: to provide larger-scale background for the interpretation of the results of CLASIC * Moisture budgets and related variables are analyzed over a large area encompassing the CLASIC field study for May-June periods with contrasting precipitation regimes * Emphasis will be given to the relative contribution to regional precipitation from local vs advective

  6. An Improved Cloud Classification Algorithm Based on the SGP CART Site Observations

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

    Improved Cloud Classification Algorithm Based on the SGP CART Site Observations Z. Wang Goddard Earth Sciences and Technology Center University of Maryland Greenbelt, Maryland K. Sassen University of Alaska Fairbanks, Alaska Introduction Different types of clouds are usually governed by different cloud dynamics processes and have different microphysical properties, which results in different cloud radiative forcings (Hartmann et al. 1992; Chen et al. 2000). Climate changes can result in changing

  7. Surface Spectral Albedo Intensive Operational Period at the ARM SGP Site in august 2002: Results, Analysis, and Future Plans

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

    Spectral Albedo Intensive Operational Period at the ARM SGP Site in August 2002: Results, Analysis, and Future Plans A. P. Trishchenko and Y. Luo Canada Centre for Remote Sensing Ottawa, Ontario, Canada M. C. Cribb and Z. Li University of Maryland College Park, Maryland K. Hamm University of Oklahoma Norman, Oklahoma Introduction A surface spectral albedo Intensive Operational Period (IOP) at the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) site was conducted during August

  8. Nuclear science abstracts (NSA) database 1948--1974 (on the Internet)

    SciTech Connect (OSTI)

    1999-02-01

    Nuclear Science Abstracts (NSA) is a comprehensive abstract and index collection of the International Nuclear Science and Technology literature for the period 1948 through 1976. Included are scientific and technical reports of the US Atomic Energy Commission, US Energy Research and Development Administration and its contractors, other agencies, universities, and industrial and research organizations. Coverage of the literature since 1976 is provided by Energy Science and Technology Database. Approximately 25% of the records in the file contain abstracts. These are from the following volumes of the print Nuclear Science Abstracts: Volumes 12--18, Volume 29, and Volume 33. The database contains over 900,000 bibliographic records. All aspects of nuclear science and technology are covered, including: Biomedical Sciences; Metals, Ceramics, and Other Materials; Chemistry; Nuclear Materials and Waste Management; Environmental and Earth Sciences; Particle Accelerators; Engineering; Physics; Fusion Energy; Radiation Effects; Instrumentation; Reactor Technology; Isotope and Radiation Source Technology. The database includes all records contained in Volume 1 (1948) through Volume 33 (1976) of the printed version of Nuclear Science Abstracts (NSA). This worldwide coverage includes books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal literature. This database is now available for searching through the GOV. Research Center (GRC) service. GRC is a single online web-based search service to well known Government databases. Featuring powerful search and retrieval software, GRC is an important research tool. The GRC web site is at http://grc.ntis.gov.

  9. Observed large-scale structures and diabatic heating and drying profiles during TWP-ICE

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

    Xie, Shaocheng; Hume, Timothy; Jakob, Christian; Klein, Stephen A.; McCoy, Renata B.; Zhang, Minghua

    2010-01-01

    This study documents the characteristics of the large-scale structures and diabatic heating and drying profiles observed during the Tropical Warm Pool–International Cloud Experiment (TWP-ICE), which was conducted in January–February 2006 in Darwin during the northern Australian monsoon season. The examined profiles exhibit significant variations between four distinct synoptic regimes that were observed during the experiment. The active monsoon period is characterized by strong upward motion and large advective cooling and moistening throughout the entire troposphere, while the suppressed and clear periods are dominated by moderate midlevel subsidence and significant low- to midlevel drying through horizontal advection. The midlevel subsidence andmore » horizontal dry advection are largely responsible for the dry midtroposphere observed during the suppressed period and limit the growth of clouds to low levels. During the break period, upward motion and advective cooling and moistening located primarily at midlevels dominate together with weak advective warming and drying (mainly from horizontal advection) at low levels. The variations of the diabatic heating and drying profiles with the different regimes are closely associated with differences in the large-scale structures, cloud types, and rainfall rates between the regimes. Strong diabatic heating and drying are seen throughout the troposphere during the active monsoon period while they are moderate and only occur above 700 hPa during the break period. The diabatic heating and drying tend to have their maxima at low levels during the suppressed periods. Furthermore, the diurnal variations of these structures between monsoon systems, continental/coastal, and tropical inland-initiated convective systems are also examined.« less

  10. ARM: Gridded (0.25 x 0.25 lat/lon) fractional cloud cover, clear-sky and all-sky shortwave flux over the SGP site.

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

    Krista Gaustad; Laura Riihimaki

    Gridded (0.25 x 0.25 lat/lon) fractional cloud cover, clear-sky and all-sky shortwave flux over the SGP site.

  11. ARM: Gridded (0.25 x 0.25 lat/lon) fractional cloud cover, clear-sky and all-sky shortwave flux over the SGP site.

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

    Krista Gaustad; Laura Riihimaki

    1997-01-01

    Gridded (0.25 x 0.25 lat/lon) fractional cloud cover, clear-sky and all-sky shortwave flux over the SGP site.

  12. Observed and Simulated Cirrus Cloud Properties at the SGP CART Site

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

    and Simulated Cirrus Cloud Properties at the SGP CART Site A. D. Del Genio and A. B. Wolf National Aeronautics and Space Administration Goddard Institute for Space Studies New York, New York G. G. Mace University of Utah Salt Lake City, Utah Introduction Despite their potential importance in a long-term climate change, less is known about cirrus clouds than most other cloud types, for a variety of reasons (Del Genio 2001) including: (1) the difficulty of remotely sensing ice water content (IWC),

  13. ARM - PI Product - AERIoe Thermodynamic Profile and Cloud Retrieval for SGP

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

    CF during LABLE-2012 2 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 PI Product : AERIoe Thermodynamic Profile and Cloud Retrieval for SGP CF during LABLE-2012 [ ARM research ] The AERIoe algorithm retrieves profiles of temperature and water vapor mixing ratio, together with cloud properties for a single-layer cloud (i.e., LWP, effective radius), from AERI-observed infrared radiance spectrum. The method is a

  14. ARM - PI Product - AERIoe Thermodynamic Profile and Cloud Retrieval for SGP

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

    CF during LABLE-2013 3 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 PI Product : AERIoe Thermodynamic Profile and Cloud Retrieval for SGP CF during LABLE-2013 [ ARM research ] The AERIoe algorithm retrieves profiles of temperature and water vapor mixing ratio, together with cloud properties for a single-layer cloud (i.e., LWP, effective radius), from AERI-observed infrared radiance spectrum. The method is a

  15. ARM Aerosol Working Group Meeting

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

    - all sites * Aerosol Sampling - SGP, NSA, AMF - scattering, absorption, number, size ... (Germany, 2007) * Near Future: - ISDAC (NSA, 2008) - AMF (China, 2008) AWG Research ...

  16. Microsoft Word - secondqmetric.doc

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

    for two time periods at the three ARM sites, DAR (top), NSA (middle) and SGP (bottom). ... AM2 (middle) and CAM3 (bottom) at the NSA......

  17. Surface Energy Balance System (SEBS) Handbook

    SciTech Connect (OSTI)

    Cook, DR

    2011-02-14

    A Surface Energy Balance System (SEBS) has been installed collocated with each deployed ECOR system at the Southern Great Plains (SGP), North Slope of Alaska (NSA), Tropical Western Pacific (TWP), ARM Mobile Facility 1 (AMF1), and ARM Mobile Facility 2 (AMF2). The surface energy balance system consists of upwelling and downwelling solar and infrared radiometers within one net radiometer, a wetness sensor, and soil measurements. The SEBS measurements allow the comparison of ECOR sensible and latent heat fluxes with the energy balance determined from the SEBS and provide information on wetting of the sensors for data quality purposes.

  18. A one-year climatology using data from the Southern Great Plains (SGP) site micropulse lidar

    SciTech Connect (OSTI)

    Mace, G.G.; Ackerman, T.P.; Spinhirne, J.; Scott, S.

    1996-04-01

    The micropulse lidar (MPL) has been operational at the Southern Great Plains (SGP) site of the Atmospheric Radiation Measurement Program for the past 15 months. The compact MPL is unique among research lidar systems in that it is eye-safe and operates continuously, except during precipitation. The MPL is capable of detecting cloud base throughout the entire depth of the troposphere. The MPL data set is an unprecedented time series of cloud heights. It is a vital resource for understanding the frequency of cloud ocurrence and the impact of clouds on the surface radiation budget, as well as for large-scale model validation and satellite retrieval verification. The raw lidar data are processed for cloud base height at a temporal frequency of one minute and a vertical resolution of 270 m. The resultant time series of cloud base is used to generate histograms as a function of month and time of day. Sample results are described.

  19. ARM - Publications: Science Team Meeting Documents

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

    Aerosol Indirect Effect: Evidence from the ARM SGP and NSA Sites Penner, J.E.(a), Chen, ... The ARM SGP site and the NSA site provide a unique opportunity to examine the effects of ...

  20. ARM - Publications: Science Team Meeting Documents

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

    Optical Depth and Liquid Water Path at the NSA and SGP Sites Chen, Y.(a), Penner, J.E.(a), ... and updraft velocity on this relationship at both the ARM NSA site and SGP site. ...

  1. ARM - Facility News Article

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

    Plains (SGP) and North Slope of Alaska (NSA) locales, two MMCR data ... for SGP as of September 9, 2003, and for NSA as of April 14, 2004. Processor upgrades ...

  2. ARM - AOS Aerosol Properties Plots

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

    XDC Data Viewers Aerosol Properties Plots SGP AMF NSA (BRW) AOS Aerosol Properties Plots ... are raw unedited data. Do not quote and cite. Aerosol Properties Plots SGP AMF NSA (BRW)

  3. Development of Aerosol Models for Radiative Flux Calculations...

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

    Plains (SGP), and North Slope of Alaska (NSA) sites to begin development of a set of ... Aerosol properties at the SGP and NSA sites show considerable variability on multiple time ...

  4. Tropical Western Pacific site science mission plan. Semiannual project report, January--June 1998

    SciTech Connect (OSTI)

    Ackerman, T.; Mather, J.; Clements, W.; Barnes, F.

    1998-11-01

    The Department of Energy`s Atmospheric Radiation Measurement (ARM) program was created in 1989 as part of the US Global Change Research Program to improve the treatment of atmospheric radiative and cloud processes in computer models used to predict climate change. The overall goal of the ARM program is to develop and test parameterizations of important atmospheric processes, particularly cloud and radiative processes, for use in atmospheric models. This goal is being achieved through a combination of field measurements and modeling studies. Three primary locales were chosen for extensive field measurement facilities. These are the Southern Great Plains (SGP) of the United States, the Tropical Western Pacific (TWP), and the North Slope of Alaska and Adjacent Arctic Ocean (NSA/AAO). This Site Science Mission Plan [RPT(TWP)-010.000] describes the ARM program in the Tropical Western Pacific locale.

  5. Surface Energy Balance System (SEBS) Handbook

    SciTech Connect (OSTI)

    Cook, D. R.

    2016-01-01

    A Surface Energy Balance System (SEBS) has been installed collocated with each deployed Eddy Correlation Flux Measurement System (ECOR) at the Atmospheric Radiation Measurement (ARM) Climate Research Facility’s Southern Great Plains (SGP) site, North Slope of Alaska (NSA) site, first ARM Mobile Facility (AMF1), second ARM Mobile Facility (AMF2), and third ARM Mobile Facility (AMF3) at Oliktok Point (OLI). A SEBS was also deployed with the Tropical Western Pacific (TWP) site, before it was decommissioned. Data from these sites, including the retired TWP, are available in the ARM Data Archive. The SEBS consists of upwelling and downwelling solar and infrared radiometers within one net radiometer, a wetness sensor, and soil measurements. The SEBS measurements allow the comparison of ECOR sensible and latent heat fluxes with the energy balance determined from the SEBS and provide information on wetting of the sensors for data quality purposes.

  6. Satellite and Surface Data Synergy for Developing a 3D Cloud Structure and Properties Characterization Over the ARM SGP. S...

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

    Satellite and Surface Data Synergy for Developing a 3D Cloud Structure and Properties Characterization Over the ARM SGP Site Stage 1: Cloud Amounts, Optical Depths, and Cloud Heights Reconciliation I. Genkova and C. N. Long Pacific Northwest National Laboratory Richland, Washington P. W. Heck Analytical Services & Materials, Inc. Hampton, Virginia P. Minnis National Aeronautics and Space Administration Langley Research Center Hampton, Virginia Introduction One of the primary Atmospheric

  7. Asymmetry in the Diurnal Cycle of Atmospheric Downwelling Radiation at the ARM SGP CF Site Over 1995-2001 Period

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

    Asymmetry in the Diurnal Cycle of Atmospheric Downwelling Radiation at the ARM SGP CF Site Over 1995-2001 Period A. P. Trishchenko Canada Centre for Remote Sensing Ottawa, Ontario, Canada Introduction The shape of the diurnal cycle of atmospheric downwelling radiation is an important climatic feature of cloud-radiation interactions and atmospheric properties. Adequate characterization of this diurnal cycle is critical for accurate determination of monthly and seasonal radiation budgets from a

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

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

    Remotely Controlled, Continuous Observations of Infrared Radiance with the CSIRO/ARM Mark II Radiometer at the SGP CART Site C. M. R. Platt and R. T. Austin Department of Atmospheric Science Colorado State University Fort Collins, Colorado C. M. R. Platt and J. A. Bennett Commonwealth Scientific and Industrial Research Organization Atmospheric Research Aspendale, Victoria, Australia Abstract The Commonwealth Scientific and Industrial Research Organization/Atmospheric Radiation Measurement

  9. ARM - Instrument Location Table

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

    Site abbreviations explained in the key. Instrument Name Abbreviation ENA NSA SGP AMF C1 ... XSAPR KEY ENA C1 Eastern North Atlantic NSA C1 Barrow, Alaska NSA EF Extended Facility ...

  10. Barnard-JC.PDF

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

    Modeled and Measured Shortwave Broadband Radiative Fluxes at the SGP and NSA Sites (with ... SBDART Calculations at the ARM NSA Site The ARM North Slope of Alaska (NSA) site is ...

  11. Broadband Heating Rate Profile Project (BBHRP) - SGP 1bbhrpripbe1mcfarlane

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

    Riihimaki, Laura; Shippert, Timothy

    2014-11-05

    The objective of the ARM Broadband Heating Rate Profile (BBHRP) Project is to provide a structure for the comprehensive assessment of our ability to model atmospheric radiative transfer for all conditions. Required inputs to BBHRP include surface albedo and profiles of atmospheric state (temperature, humidity), gas concentrations, aerosol properties, and cloud properties. In the past year, the Radiatively Important Parameters Best Estimate (RIPBE) VAP was developed to combine all of the input properties needed for BBHRP into a single gridded input file. Additionally, an interface between the RIPBE input file and the RRTM was developed using the new ARM integrated software development environment (ISDE) and effort was put into developing quality control (qc) flags and provenance information on the BBHRP output files so that analysis of the output would be more straightforward. This new version of BBHRP, sgp1bbhrpripbeC1.c1, uses the RIPBE files as input to RRTM, and calculates broadband SW and LW fluxes and heating rates at 1-min resolution using the independent column approximation. The vertical resolution is 45 m in the lower and middle troposphere to match the input cloud properties, but is at coarser resolution in the upper atmosphere. Unlike previous versions, the vertical grid is the same for both clear-sky and cloudy-sky calculations.

  12. Tropical Warm Pool International Cloud Experiment TWP-ICE Cloud and rain characteristics in the Australian Monsoon

    SciTech Connect (OSTI)

    May, P.T., Jakob, C., and Mather, J.H.

    2004-05-31

    The impact of oceanic convection on its environment and the relationship between the characteristics of the convection and the resulting cirrus characteristics is still not understood. An intense airborne measurement campaign combined with an extensive network of ground-based observations is being planned for the region near Darwin, Northern Australia, during January-February, 2006, to address these questions. The Tropical Warm Pool International Cloud Experiment (TWP-ICE) will be the first field program in the tropics that attempts to describe the evolution of tropical convection, including the large scale heat, moisture, and momentum budgets, while at the same time obtaining detailed observations of cloud properties and the impact of the clouds on the environment. The emphasis will be on cirrus for the cloud properties component of the experiment. Cirrus clouds are ubiquitous in the tropics and have a large impact on their environment but the properties of these clouds are poorly understood. A crucial product from this experiment will be a dataset suitable to provide the forcing and testing required by cloud-resolving models and parameterizations in global climate models. This dataset will provide the necessary link between cloud properties and the models that are attempting to simulate them.

  13. Eddy Correlation Flux Measurement System Handbook

    SciTech Connect (OSTI)

    Cook, D. R.

    2016-01-01

    The eddy correlation (ECOR) flux measurement system provides in situ, half-hour measurements of the surface turbulent fluxes of momentum, sensible heat, latent heat, and carbon dioxide (CO2) (and methane at one Southern Great Plains extended facility (SGP EF) and the North Slope of Alaska Central Facility (NSA CF). The fluxes are obtained with the eddy covariance technique, which involves correlation of the vertical wind component with the horizontal wind component, the air temperature, the water vapor density, and the CO2 concentration. The instruments used are: • a fast-response, three-dimensional (3D) wind sensor (sonic anemometer) to obtain the orthogonal wind components and the speed of sound (SOS) (used to derive the air temperature) • an open-path infrared gas analyzer (IRGA) to obtain the water vapor density and the CO2 concentration, and • an open-path infrared gas analyzer (IRGA) to obtain methane density and methane flux at one SGP EF and at the NSA CF. The ECOR systems are deployed at the locations where other methods for surface flux measurements (e.g., energy balance Bowen ratio [EBBR] systems) are difficult to employ, primarily at the north edge of a field of crops. A Surface Energy Balance System (SEBS) has been installed collocated with each deployed ECOR system in SGP, NSA, Tropical Western Pacific (TWP), ARM Mobile Facility 1 (AMF1), and ARM Mobile Facility 2 (AMF2). The surface energy balance system consists of upwelling and downwelling solar and infrared radiometers within one net radiometer, a wetness sensor, and soil measurements. The SEBS measurements allow the comparison of ECOR sensible and latent heat fluxes with the energy balance determined from the SEBS and provide information on wetting of the sensors for data quality purposes. The SEBS at one SGP and one NSA site also support upwelling and downwelling PAR measurements to qualify those two locations as Ameriflux sites.

  14. Cloud properties derived from two lidars over the ARM SGP site

    SciTech Connect (OSTI)

    Dupont, Jean-Charles; Haeffelin, Martial; Morille, Y.; Comstock, Jennifer M.; Flynn, Connor J.; Long, Charles N.; Sivaraman, Chitra; Newsom, Rob K.

    2011-02-16

    [1] Active remote sensors such as lidars or radars can be used with other data to quantify the cloud properties at regional scale and at global scale (Dupont et al., 2009). Relative to radar, lidar remote sensing is sensitive to very thin and high clouds but has a significant limitation due to signal attenuation in the ability to precisely quantify the properties of clouds with a 20 cloud optical thickness larger than 3. In this study, 10-years of backscatter lidar signal data are analysed by a unique algorithm called STRucture of ATmosphere (STRAT, Morille et al., 2007). We apply the STRAT algorithm to data from both the collocated Micropulse lidar (MPL) and a Raman lidar (RL) at the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) site between 1998 and 2009. Raw backscatter lidar signal is processed and 25 corrections for detector deadtime, afterpulse, and overlap are applied. (Campbell et al.) The cloud properties for all levels of clouds are derived and distributions of cloud base height (CBH), top height (CTH), physical cloud thickness (CT), and optical thickness (COT) from local statistics are compared. The goal of this study is (1) to establish a climatology of macrophysical and optical properties for all levels of clouds observed over the ARM SGP site 30 and (2) to estimate the discrepancies induced by the two remote sensing systems (pulse energy, sampling, resolution, etc.). Our first results tend to show that the MPLs, which are the primary ARM lidars, have a distinctly limited range where all of these cloud properties are detectable, especially cloud top and cloud thickness, but even actual cloud base especially during summer daytime period. According to the comparisons between RL and MPL, almost 50% of situations show a signal to noise ratio too low (smaller than 3) for the MPL in order to detect clouds higher than 7km during daytime period in summer. Consequently, the MPLderived annual cycle of cirrus cloud base (top) altitude is

  15. Evaluation of Cloud-resolving and Limited Area Model Intercomparison Simulations using TWP-ICE Observations. Part 2: Rain Microphysics

    SciTech Connect (OSTI)

    Varble, Adam; Zipser, Edward J.; Fridlind, Ann; Zhu, Ping; Ackerman, Andrew; Chaboureau, Jean-Pierre; Fan, Jiwen; Hill, Adrian; Shipway, Ben; Williams, Christopher R.

    2014-12-27

    Ten 3D cloud-resolving model (CRM) simulations and four 3D limited area model (LAM) simulations of an intense mesoscale convective system observed on January 23-24, 2006 during the Tropical Warm Pool International Cloud Experiment (TWP-ICE) are compared with each other and with observations and retrievals from a scanning polarimetric radar, co-located UHF and VHF vertical profilers, and a Joss-Waldvogel disdrometer in an attempt to explain published results showing a low bias in simulated stratiform rainfall. Despite different forcing methodologies, similar precipitation microphysics errors appear in CRMs and LAMs with differences that depend on the details of the bulk microphysics scheme used. One-moment schemes produce too many small raindrops, which biases Doppler velocities low, but produces rain water contents (RWCs) that are similar to observed. Two-moment rain schemes with a gamma shape parameter (?) of 0 produce excessive size sorting, which leads to larger Doppler velocities than those produced in one-moment schemes, but lower RWCs than observed. Two moment schemes also produce a convective median volume diameter distribution that is too broad relative to observations and thus, may have issues balancing raindrop formation, collision coalescence, and raindrop breakup. Assuming a ? of 2.5 rather than 0 for the raindrop size distribution improves one-moment scheme biases, and allowing ? to have values greater than 0 may improve two-moment schemes. Under-predicted stratiform rain rates are associated with under-predicted ice water contents at the melting level rather than excessive rain evaporation, in turn likely associated with convective detrainment that is too high in the troposphere and mesoscale circulations that are too weak. In addition to stronger convective updrafts than observed, limited domain size prevents a large, well-developed stratiform region from developing in CRMs, while a dry bias in ECMWF analyses does the same to the LAMs.

  16. Evaluation of Cloud-Resolving Model Intercomparison Simulations Using TWP-ICE Observations: Precipitation and Cloud Structure

    SciTech Connect (OSTI)

    Varble, Adam C.; Fridlind, Ann; Zipser, Ed; Ackerman, Andrew; Chaboureau, Jean-Pierre; Fan, Jiwen; Hill, Adrian; McFarlane, Sally A.; Pinty, Jean-Pierre; Shipway, Ben

    2011-06-24

    The Tropical Warm Pool - International Cloud Experiment (TWP-ICE) provided high quality model forcing and observational datasets through which detailed model and observational intercomparisons could be performed. In this first of a two part study, precipitation and cloud structures within nine cloud-resolving model simulations are compared with scanning radar reflectivity and satellite infrared brightness temperature observations during an active monsoon period from 19 to 25 January 2006. Most simulations slightly overestimate volumetric convective rainfall. Overestimation of simulated convective area by 50% or more in several simulations is somewhat offset by underestimation of mean convective rain rates. Stratiform volumetric rainfall is underestimated by 13% to 53% despite overestimation of stratiform area by up to 65% because stratiform rain rates in every simulation are much lower than observed. Although simulations match the peaked convective radar reflectivity distribution at low levels, they do not reproduce the peaked distributions observed above the melting level. Simulated radar reflectivity aloft in convective regions is too high in most simulations. 29 In stratiform regions, there is a large spread in model results with none resembling 30 observed distributions. Above the melting level, observed radar reflectivity decreases 31 more gradually with height than simulated radar reflectivity. A few simulations produce 32 unrealistically uniform and cold 10.8-?m infrared brightness temperatures, but several 33 simulations produce distributions close to observed. Assumed ice particle size 34 distributions appear to play a larger role than ice water contents in producing incorrect 35 simulated radar reflectivity distributions aloft despite substantial differences in mean 36 graupel and snow water contents across models. 37

  17. The North Slope of Alaska and Adjacent Arctic Ocean (NSA/AAO) cart site begins operation: Collaboration with SHEBA and FIRE

    SciTech Connect (OSTI)

    Zak, D. B.; Church, H.; Ivey, M.; Yellowhorse, L.; Zirzow, J.; Widener, K. B.; Rhodes, P.; Turney, C.; Koontz, A.; Stamnes, K.; Storvold, R.; Eide, H. A.; Utley, P.; Eagan, R.; Cook, D.; Hart, D.; Wesely, M.

    2000-04-04

    Since the 1997 Atmospheric Radiation Measurement (ARM) Science Team Meeting, the North Slope of Alaska and Adjacent Arctic Ocean (NSA/AAO) Cloud and Radiation Testbed (CART) site has come into being. Much has happened even since the 1998 Science Team Meeting at which this paper was presented. To maximize its usefulness, this paper has been updated to include developments through July 1998.

  18. ARM - Publications: Science Team Meeting Documents: Assessing...

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

    Assessing interannual and spatial variability in cloud radiative forcing at the TWP and NSA ARM sites. Key, Erica University of Miami, RSMAS Minnett, Peter University of Miami The ...

  19. Tropical Warm Pool International Cloud Experiment (TWP-ICE): Cloud and Rain Characteristics in the Australian Monsoon

    SciTech Connect (OSTI)

    PT May; C Jakob; JH Mather

    2004-05-30

    The impact of oceanic convection on its environment and the relationship between the characteristics of the convection and the resulting cirrus characteristics is still not understood. An intense airborne measurement campaign combined with an extensive network of ground-based observations is being planned for the region near Darwin, Northern Australia, during January-February, 2006, to address these questions. The Tropical Warm Pool – International Cloud Experiment (TWP-ICE) will be the first field program in the tropics that attempts to describe the evolution of tropical convection, including the large scale heat, moisture, and momentum budgets, while at the same time obtaining detailed observations of cloud properties and the impact of the clouds on the environment. The emphasis will be on cirrus for the cloud properties component of the experiment. Cirrus clouds are ubiquitous in the tropics and have a large impact on their environment but the properties of these clouds are poorly understood. A crucial product from this experiment will be a dataset suitable to provide the forcing and testing required by cloud-resolving models and parameterizations in global climate models. This dataset will provide the necessary link between cloud properties and the models that are attempting to simulate them. The experiment is a collaboration between the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Program, the Bureau of Meteorology (BoM), the National Aeronautics and Space Administration (NASA), the European Commission DG RTD-1.2, and several United States, Australian, Canadian, and European Universities. This experiment will be undertaken over a 4-week period in early 2006. January and February corresponds to the wet phase of the Australia monsoon. This season has been selected because, despite Darwin’s coastal location, the convection that occurs over and near Darwin at this time is largely of maritime origin with a large fetch over water

  20. ARM - Publications: Science Team Meeting Documents

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

    Observational data from the Atmospheric Radiation Measurements (ARM) Program at the Southern Great Plain (SGP) Oklahoma Central Facility and the Tropical Western Pacific (TWP) ...

  1. Research Highlight

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

    real-time for the SGP and TWP MPL units. Solving this equation requires calibrating each system for signal and range dependent deadtime, afterpulse and overlap corrections....

  2. ARM - Publications: Science Team Meeting Documents

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

    the SGP and TWP sites derived from cloud layers of similar temperature reveal both similarities and large differences. We will explore these similarities and differences in our...

  3. ARM - Data Announcements Article

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

    Research Facility Southern Great Plains (SGP) and Tropical Western Pacific (TWP) Darwin sites are currently the only ARM active remote sensing instruments capable of...

  4. ARM - Facility News Article

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

    began collecting data at the ARM Southern Great Plains (SGP) site and the ARM Darwin site in the Tropical Western Pacific (TWP), adding details about rain drop size...

  5. PROGRESS REPORT OF FY 2004 ACTIVITIES: IMPROVED WATER VAPOR AND CLOUD RETRIEVALS AT THE NSA/AAO

    SciTech Connect (OSTI)

    E. R. Westwater; V. V. Leuskiy; M. Klein; A. J. Gasiewski; and J. A. Shaw

    2004-11-01

    The basic goals of the research are to develop and test algorithms and deploy instruments that improve measurements of water vapor, cloud liquid, and cloud coverage, with a focus on the Arctic conditions of cold temperatures and low concentrations of water vapor. The importance of accurate measurements of column amounts of water vapor and cloud liquid has been well documented by scientists within the Atmospheric Radiation Measurement Program. Although several technologies have been investigated to measure these column amounts, microwave radiometers (MWR) have been used operationally by the ARM program for passive retrievals of these quantities: precipitable water vapor (PWV) and integrated water liquid (IWL). The technology of PWV and IWL retrievals has advanced steadily since the basic 2-channel MWR was first deployed at ARM CART sites Important advances are the development and refinement of the tipcal calibration method [1,2], and improvement of forward model radiative transfer algorithms [3,4]. However, the concern still remains that current instruments deployed by ARM may be inadequate to measure low amounts of PWV and IWL. In the case of water vapor, this is especially important because of the possibility of scaling and/or quality control of radiosondes by the water amount. Extremely dry conditions, with PWV less than 3 mm, commonly occur in Polar Regions during the winter months. Accurate measurements of the PWV during such dry conditions are needed to improve our understanding of the regional radiation energy budgets. The results of a 1999 experiment conducted at the ARM North Slope of Alaska/Adjacent Arctic Ocean (NSA/AAO) site during March of 1999 [5] have shown that the strength associated with the 183 GHz water vapor absorption line makes radiometry in this frequency regime suitable for measuring low amounts of PWV. As a portion of our research, we conducted another millimeter wave radiometric experiment at the NSA/AAO in March-April 2004. This

  6. TWP Manus Site

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

    The Manus facility was located at Momote Airport on Los Negros Island in Manus Province, Papua New Guinea (PNG). This location was chosen because of its location in the heart of ...

  7. TWP Nauru Site

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

    in the Denigomodu district on Nauru Island, the Republic of Nauru, which is located in the western South Pacific, is approximately 1,200 miles northeast of Papua New Guinea. ...

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

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

    Boundary-Layer Temperature Profiles by a Scanning 5-MM Radiometer During the 1999 Winter NSA/AAO Radiometer Experiment and WVIOP 2000 V. Y. Leuski and E. R. Westwater Cooperative Institute for Research in the Environmental Sciences National Oceanic and Atmospheric Administration Environmental Technology Laboratory University of Colorado Boulder, Colorado Introduction A scanning 5-mm-wavelength radiometer was deployed during two Intensive Operational Periods (IOPs) at the Atmospheric Radiation

  9. Using Radar, Lidar and Radiometer Data from NSA and SHEBA to Quantify Cloud Property Effects on the Surface Heat Budget in the Arctic

    SciTech Connect (OSTI)

    Janet Intrieri; Mathhew Shupe

    2005-01-01

    Cloud and radiation data from two distinctly different Arctic areas are analyzed to study the differences between coastal Alaskan and open Arctic Ocean region clouds and their respective influence on the surface radiation budget. The cloud and radiation datasets were obtained from (1) the DOE North Slope of Alaska (NSA) facility in the coastal town of Barrow, Alaska, and (2) the SHEBA field program, which was conducted from an icebreaker frozen in, and drifting with, the sea-ice for one year in the Western Arctic Ocean. Radar, lidar, radiometer, and sounding measurements from both locations were used to produce annual cycles of cloud occurrence and height, atmospheric temperature and humidity, surface longwave and shortwave broadband fluxes, surface albedo, and cloud radiative forcing. In general, both regions revealed a similar annual trend of cloud occurrence fraction with minimum values in winter (60-75%) and maximum values during spring, summer and fall (80-90%). However, the annual average cloud occurrence fraction for SHEBA (76%) was lower than the 6-year average cloud occurrence at NSA (92%). Both Arctic areas also showed similar annual cycle trends of cloud forcing with clouds warming the surface through most of the year and a period of surface cooling during the summer, when cloud shading effects overwhelm cloud greenhouse effects. The greatest difference between the two regions was observed in the magnitude of the cloud cooling effect (i.e., shortwave cloud forcing), which was significantly stronger at NSA and lasted for a longer period of time than at SHEBA. This is predominantly due to the longer and stronger melt season at NSA (i.e., albedo values that are much lower coupled with Sun angles that are somewhat higher) than the melt season observed over the ice pack at SHEBA. Longwave cloud forcing values were comparable between the two sites indicating a general similarity in cloudiness and atmospheric temperature and humidity structure between the two

  10. Comparison of improved Aura Tropospheric Emission Spectrometer (TES) CO{sub 2} with HIPPO and SGP aircraft profile measurements

    SciTech Connect (OSTI)

    Kulawik, S. S.; Worden, J. R.; Wofsy, S. C.; Biraud, S. C.; Nassar, R.; Jones, D. B.A.; Olsen, E. T.; Osterman, G. B.

    2012-02-01

    Comparisons are made between mid-tropospheric Tropospheric Emission Spectrometer (TES) carbon dioxide (CO{sub 2}) satellite measurements and ocean profiles from three Hiaper Pole-to-Pole Observations (HIPPO) campaigns and land aircraft profiles from the United States Southern Great Plains (SGP) Atmospheric Radiation Measurement (ARM) site over a 4-yr period. These comparisons are used to characterize the bias in the TES CO{sub 2} estimates and to assess whether calculated and actual uncertainties and sensitivities are consistent. The HIPPO dataset is one of the few datasets spanning the altitude range where TES CO{sub 2} estimates are sensitive, which is especially important for characterization of biases. We find that TES CO{sub 2} estimates capture the seasonal and latitudinal gradients observed by HIPPO CO{sub 2} measurements; actual errors range from 0.8–1.2 ppm, depending on the campaign, and are approximately 1.4 times larger than the predicted errors. The bias of TES versus HIPPO is within 0.85 ppm for each of the 3 campaigns; however several of the sub-tropical TES CO{sub 2} estimates are lower than expected based on the calculated errors. Comparisons of aircraft flask profiles, which are measured from the surface to 5 km, to TES CO{sub 2} at the SGP ARM site show good agreement with an overall bias of 0.1 ppm and rms of 1.0 ppm. We also find that the predicted sensitivity of the TES CO{sub 2} estimates is too high, which results from using a multi-step retrieval for CO{sub 2} and temperature. We find that the averaging kernel in the TES product corrected by a pressure-dependent factor accurately reflects the sensitivity of the TES CO{sub 2} product.

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

    SciTech Connect (OSTI)

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

    2009-08-20

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

  12. ARM - Publications: Science Team Meeting Documents

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

    Metadata Systems for ARM's SGP and NSA Sites Doty, K.J., Brookhaven National Laboratory ... and are now in the process of designing an MDS for the North Slope of Alaska (NSA) site. ...

  13. OFFICE OF BIOLOGICAL AND ENVIRONMENTAL RESEARCH Climate and Environmen...

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

    Slope of Alaska (NSA) sites. The frst workshop was held in May 2014 and focused on the SGP site. In September 2014, a second workshop focused on the NSA site, and an ...

  14. ARM - Data Announcements Article

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

    September 29, 2014 Data Announcements High-Vertical Resolution Soundings Available for SGP and NSA Bookmark and Share A data visualization of the 1-second atmospheric ...

  15. PowerPoint Presentation

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

    ...2008 - Shouxian China 52008 - 2009 * BRWNSA - Barrow Alaska In-situ measurements of ... bins Submicron Particle Size Distribution (NSA and SGP) Submicron Inorganic Ion chemical ...

  16. Scanning ARM Cloud Radar Handbook

    SciTech Connect (OSTI)

    Widener, K; Bharadwaj, N; Johnson, K

    2012-06-18

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

  17. Long-term measurements of submicrometer aerosol chemistry at the Southern Great Plains (SGP) using an Aerosol Chemical Speciation Monitor (ACSM)

    SciTech Connect (OSTI)

    Parworth, Caroline; Tilp, Alison; Fast, Jerome; Mei, Fan; Shippert, Tim; Sivaraman, Chitra; Watson, Thomas; Zhang, Qi

    2015-04-01

    In this study the long-term trends of non-refractory submicrometer aerosol (NR-PM1) composition and mass concentration measured by an Aerosol Chemical Speciation Monitor (ACSM) at the Atmospheric Radiation Measurement (ARM) program's Southern Great Plains (SGP) site are discussed. NR-PM1 data was recorded at ~30 min intervals over a period of 19 months between November 2010 and June 2012. Positive Matrix Factorization (PMF) was performed on the measured organic mass spectral matrix using a rolling window technique to derive factors associated with distinct sources, evolution processes, and physiochemical properties. The rolling window approach also allows us to capture the dynamic variations of the chemical properties in the organic aerosol (OA) factors over time. Three OA factors were obtained including two oxygenated OA (OOA) factors, differing in degrees of oxidation, and a biomass burning OA (BBOA) factor. Back trajectory analyses were performed to investigate possible sources of major NR-PM1 species at the SGP site. Organics dominated NR-PM1 mass concentration for the majority of the study with the exception of winter, when ammonium nitrate increases due to transport of precursor species from surrounding urban and agricultural areas and also due to cooler temperatures. Sulfate mass concentrations have little seasonal variation with mixed regional and local sources. In the spring BBOA emissions increase and are mainly associated with local fires. Isoprene and carbon monoxide emission rates were obtained by the Model of Emissions of Gases and Aerosols from Nature (MEGAN) and the 2011 U.S. National Emissions Inventory to represent the spatial distribution of biogenic and anthropogenic sources, respectively. The combined spatial distribution of isoprene emissions and air mass trajectories suggest that biogenic emissions from the southeast contribute to SOA formation at the SGP site during the summer.

  18. Long-term Measurements of Submicrometer Aerosol Chemistry at the Southern Great Plains (SGP) Using an Aerosol Chemical Speciation Monitor (ACSM)

    SciTech Connect (OSTI)

    Parworth, Caroline; Fast, Jerome D.; Mei, Fan; Shippert, Timothy R.; Sivaraman, Chitra; Tilp, Alison; Watson, Thomas; Zhang, Qi

    2015-04-01

    In this study the long-term trends of non-refractory submicrometer aerosol (NR-PM1) composition and mass concentration measured by an Aerosol Chemical Speciation Monitor (ACSM) at the U.S. Department of Energy’s Southern Great Plains (SGP) site are discussed. Over the period of 19 months (Nov. 20, 2010 – June 2012) highly time resolved (~30 min.) NR-PM1 data was recorded. Using this dataset the value-added product (VAP) of deriving organic aerosol components (OACOMP) is introduced. With this VAP, multivariate analysis of the measured organic mass spectral matrix can be performed on long term data to return organic aerosol (OA) factors that are associated with distinct sources, evolution processes, and physiochemical properties. Three factors were obtained from this VAP including two oxygenated OA (OOA) factors, differing in degrees of oxidation, and a biomass burning OA (BBOA) factor. Back trajectory analyses were performed to investigate possible sources of major NR-PM1 species at the SGP site. Organics dominated NR-PM1 mass concentration for the majority of the study with the exception of winter, when nitrate increased due to transport of precursor species from surrounding urban and agricultural areas and also due to cooler temperatures. Sulfate mass concentrations showed little seasonal variation with mixed regional and local sources. In the spring BBOA emissions increased and were mainly associated with local fires. Isoprene and carbon monoxide emission rates were computed by the Model of Emissions of Gases and Aerosols from Nature (MEGAN) to represent the spatial distribution of biogenic and anthropogenic sources, respectively. From this model there is evidence to support that biogenic emissions from the southeast contribute to SOA formation at the SGP site during the summer.

  19. Long-term measurements of submicrometer aerosol chemistry at the Southern Great Plains (SGP) using an Aerosol Chemical Speciation Monitor (ACSM)

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

    Parworth, Caroline; Tilp, Alison; Fast, Jerome; Mei, Fan; Shippert, Tim; Sivaraman, Chitra; Watson, Thomas; Zhang, Qi

    2015-04-01

    In this study the long-term trends of non-refractory submicrometer aerosol (NR-PM1) composition and mass concentration measured by an Aerosol Chemical Speciation Monitor (ACSM) at the Atmospheric Radiation Measurement (ARM) program's Southern Great Plains (SGP) site are discussed. NR-PM1 data was recorded at ~30 min intervals over a period of 19 months between November 2010 and June 2012. Positive Matrix Factorization (PMF) was performed on the measured organic mass spectral matrix using a rolling window technique to derive factors associated with distinct sources, evolution processes, and physiochemical properties. The rolling window approach also allows us to capture the dynamic variations ofmore » the chemical properties in the organic aerosol (OA) factors over time. Three OA factors were obtained including two oxygenated OA (OOA) factors, differing in degrees of oxidation, and a biomass burning OA (BBOA) factor. Back trajectory analyses were performed to investigate possible sources of major NR-PM1 species at the SGP site. Organics dominated NR-PM1 mass concentration for the majority of the study with the exception of winter, when ammonium nitrate increases due to transport of precursor species from surrounding urban and agricultural areas and also due to cooler temperatures. Sulfate mass concentrations have little seasonal variation with mixed regional and local sources. In the spring BBOA emissions increase and are mainly associated with local fires. Isoprene and carbon monoxide emission rates were obtained by the Model of Emissions of Gases and Aerosols from Nature (MEGAN) and the 2011 U.S. National Emissions Inventory to represent the spatial distribution of biogenic and anthropogenic sources, respectively. The combined spatial distribution of isoprene emissions and air mass trajectories suggest that biogenic emissions from the southeast contribute to SOA formation at the SGP site during the summer.« less

  20. Evaluation of Cloud-resolving and Limited Area Model Intercomparison Simulations using TWP-ICE Observations. Part 1: Deep Convective Updraft Properties

    SciTech Connect (OSTI)

    Varble, A. C.; Zipser, Edward J.; Fridlind, Ann; Zhu, Ping; Ackerman, Andrew; Chaboureau, Jean-Pierre; Collis, Scott M.; Fan, Jiwen; Hill, Adrian; Shipway, Ben

    2014-12-27

    Ten 3D cloud-resolving model (CRM) simulations and four 3D limited area model (LAM) simulations of an intense mesoscale convective system observed on January 23-24, 2006 during the Tropical Warm Pool International Cloud Experiment (TWP-ICE) are compared with each other and with observed radar reflectivity fields and dual-Doppler retrievals of vertical wind speeds in an attempt to explain published results showing a high bias in simulated convective radar reflectivity aloft. This high bias results from ice water content being large, which is a product of large, strong convective updrafts, although hydrometeor size distribution assumptions modulate the size of this bias. Snow reflectivity can exceed 40 dBZ in a two-moment scheme when a constant bulk density of 100 kg m-3 is used. Making snow mass more realistically proportional to area rather than volume should somewhat alleviate this problem. Graupel, unlike snow, produces high biased reflectivity in all simulations. This is associated with large amounts of liquid water above the freezing level in updraft cores. Peak vertical velocities in deep convective updrafts are greater than dual-Doppler retrieved values, especially in the upper troposphere. Freezing of large rainwater contents lofted above the freezing level in simulated updraft cores greatly contributes to these excessive upper tropospheric vertical velocities. Strong simulated updraft cores are nearly undiluted, with some showing supercell characteristics. Decreasing horizontal grid spacing from 900 meters to 100 meters weakens strong updrafts, but not enough to match observational retrievals. Therefore, overly intense simulated updrafts may partly be a product of interactions between convective dynamics, parameterized microphysics, and large-scale environmental biases that promote different convective modes and strengths than observed.

  1. Analysis of Cloud-resolving Simulations of a Tropical Mesoscale Convective System Observed during TWP-ICE: Vertical Fluxes and Draft Properties in Convective and Stratiform Regions

    SciTech Connect (OSTI)

    Mrowiec, Agnieszka A.; Rio, Catherine; Fridlind, Ann; Ackerman, Andrew; Del Genio, Anthony D.; Pauluis, Olivier; Varble, Adam; Fan, Jiwen

    2012-10-02

    We analyze three cloud-resolving model simulations of a strong convective event observed during the TWP-ICE campaign, differing in dynamical core, microphysical scheme or both. Based on simulated and observed radar reflectivity, simulations roughly reproduce observed convective and stratiform precipitating areas. To identify the characteristics of convective and stratiform drafts that are difficult to observe but relevant to climate model parameterization, independent vertical wind speed thresholds are calculated to capture 90% of total convective and stratiform updraft and downdraft mass fluxes. Convective updrafts are fairly consistent across simulations (likely owing to fixed large-scale forcings and surface conditions), except that hydrometeor loadings differ substantially. Convective downdraft and stratiform updraft and downdraft mass fluxes vary notably below the melting level, but share similar vertically uniform draft velocities despite differing hydrometeor loadings. All identified convective and stratiform downdrafts contain precipitation below ~10 km and nearly all updrafts are cloudy above the melting level. Cold pool properties diverge substantially in a manner that is consistent with convective downdraft mass flux differences below the melting level. Despite differences in hydrometeor loadings and cold pool properties, convective updraft and downdraft mass fluxes are linearly correlated with convective area, the ratio of ice in downdrafts to that in updrafts is ~0.5 independent of species, and the ratio of downdraft to updraft mass flux is ~0.5-0.6, which may represent a minimum evaporation efficiency under moist conditions. Hydrometeor loading in stratiform regions is found to be a fraction of hydrometeor loading in convective regions that ranges from ~10% (graupel) to ~90% (cloud ice). These findings may lead to improved convection parameterizations.

  2. ARM - SGP Boundary Facility

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

    Nearest Town Status B1 Hillsboro Removed 10212010 B5 Morris Removed 11172010 B6 Purcell Removed 1132010 B4 Vici Removed 2172010 *NOTE: Site designations are used in...

  3. SGP Central Facility

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

    is an ideal site for major collaborative field projects. Image from the Total Sky Imager Image from the Total Sky Imager Current sky cover retrievals at the Central Facility, to...

  4. TWP Island Cloud Trail Studies

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

    These island cloud trails have been observed from both the islands of Nauru and Manus, Papua New Guinea. Figure 2 shows an island cloud at Manus observed from MTI and from the ...

  5. TWP-ICE Operations Plan

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

    Operations Plan Peter May, Jim Mather, Christian Jakob, Jay Mace, Greg McFarquhar With contributions from many people Overview The TWPICE experiment will take place from January 21, 2006 through February 13, 2006. During this period, there will be a substantial ground and sea based component as well as NASA, ARM, ARA and UK aircraft. The UK aircraft will also be participating in an experiment in Darwin during November- December 2005. This earlier experiment also involves aircraft associated with

  6. ARM - Feature Stories and Releases Article

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

    ... An ambitious string of ARM sites followed: The first Tropical Western Pacific (TWP) in 1996, on Manus Island in Papua New Guinea; the Barrow, Alaska, North Slope of Alaska (NSA) ...

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

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

    April 2011 * C-SAPR on Manus Island, Papua New Guinea, installed, representing the frst operational precipitation radar in the TWP area. May 2011 * New KAZR began operation at NSA, ...

  8. ARM - Publications: Science Team Meeting Documents

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

    several in the areas of the ARM TWP and NSA-AAO sites. Accurate measurements of the skin sea-surface temperature and near-surface air temperatures are derived from the infrared...

  9. ARM - Publications: Science Team Meeting Documents

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

    Retrieval (MICROBASE): Status of SGP Version 1.2 and Prototype TWP Version Miller, M.A.(a), Johnson, K.L.(a), Jensen, M.P.(b), Mace, G.G.(c), Dong, X.(d), and...

  10. Slide 1

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

    and analysis results (7105 -63006) in a 10x10 area centered at SGP and TWP-Darwin sites. Retrieval Algorithm MMCR iwc profiles MWR lwp ECMWF p, T, q, ... RT model...

  11. ARM Climate Research Facility

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

    ...wrret1liljclouFF.cN.YYYYMMDD.hhmmss where: XXX the location of the instrument (nsa, sgp, ... Datastream Variable Name Variable Long Name Units XXXmwrlosFF.b1 XXX is all sites tbsky23 ...

  12. ARM - Evaluation Product - Areal Average Albedo (AREALAVEALB...

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

    albedo may be responsible for large uncertainties in these calculations. Moreover, the tower-based measurements of surface albedo are limited to SGP and NSA sites, and the TCAP...

  13. Cloud Property Retrieval Products for Graciosa Island, Azores...

    Office of Scientific and Technical Information (OSTI)

    We had been using this method to retrieve cloud microphysical properties over ARM SGP and NSA sites. We also modified the method for the AMF at Shouxian, China and some IOPs, e.g. ...

  14. ARM - TWP Darwin Site-Inactive

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

    Bureau of Meteorology's (BOM) Meteorological Office near Darwin International Airport. Darwin was chosen because it meets the scientific goal of the ARM Program, providing...

  15. ARM - TWP Manus Site-Inactive

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

    Western Pacific locale was established. The Manus facility was located at Momote Airport on Los Negros Island in Manus Province, Papua New Guinea (PNG). This location was...

  16. TWP-ICE Daily Synoptic Overview

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

    Daily Synoptic Overview 16 January - 14 February 2006 Lori Chappel Bureau of Meteorology Weather Overview * 13 January - 2 February 2006 Monsoon across north Australia; - 13-25...

  17. FactSheet-TWP_ICE.indd

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

    - additional ground sites equipped with passive instrumentation and lightning detection systems will measure turbulent and radiant energy exchange between land and the atmosphere. ...

  18. CMWG_Plenary_V2.ppt

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

    Reports from the Cloud Modeling Working Group Ann Fridlind, Larry Berg, Tony Del Genio, ChrisAan Jakob, Steve Klein, Steve Krueger, Shaocheng Xie, Minghua Zhang 19 th Annual ARM Science Team MeeAng * Louisville, Kentucky * 31 March 2009 ACRF Data ↔ Modeling Skill * Model intercomparisons - M-PACE (NSA) - TWP-ICE (TWP) - ISDAC (NSA) * Other scienAfic accomplishments * Science plan contribuAons - Priority science quesAons - Data needs M-PACE Intercomparison Wrap-Up * 26 models took part * Two

  19. ARM/NSA Vehicle Use Policy

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

    North Slope of AlaskaAdjacent Arctic Ocean (ACRFNSAAAO) Operating Procedures for The Use of Scaffolds at ACRFNSAAAO Meteorological Towers Introduction: An aluminum ...

  20. TWP93.0100104 DOC#: TWP-DOC-1.4 SCIENCE AND SITING STRATEGY FOR...

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

    ... Experiment (PROBE), which was carried out in Kavieng, New Ireland, Papua New Guinea, in conjunction with the TOGA Coupled Ocean Atmosphere Response Experiment (Figure 3). ...

  1. SGP CART Site Affected by Ice Storm

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

    ... Dry nitrogen gas purges were installed to prevent condensation from forming on instrument ... compensation for damaged or destroyed property and cleanup costs not covered by insurance. ...

  2. Aerosol Retrievals from ARM SGP MFRSR Data

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

    Alexandrov, Mikhail

    2008-01-15

    The Multi-Filter Rotating Shadowband Radiometer (MFRSR) makes precise simultaneous measurements of the solar direct normal and diffuse horizontal irradiances at six wavelengths (nominally 415, 500, 615, 673, 870, and 940 nm) at short intervals (20 sec for ARM instruments) throughout the day. Time series of spectral optical depth are derived from these measurements. Besides water vapor at 940 nm, the other gaseous absorbers within the MFRSR channels are NO2 (at 415, 500, and 615 nm) and ozone (at 500, 615, and 670 nm). Aerosols and Rayleigh scattering contribute atmospheric extinction in all MFRSR channels. Our recently updated MFRSR data analysis algorithm allows us to partition the spectral aerosol optical depth into fine and coarse modes and to retrieve the fine mode effective radius. In this approach we rely on climatological amounts of NO2 from SCIAMACHY satellite retrievals and use daily ozone columns from TOMS.

  3. Tower Temperature and Humidity Sensors (TWR) Handbook

    SciTech Connect (OSTI)

    Cook, DR

    2010-02-01

    Three tall towers are installed at the Atmospheric Radiation Measurement (ARM) Climate Research Facility: a 60-meter triangular tower at the Southern Great Plains (SGP) Central Facility (CF), a 21-meter walkup scaffolding tower at the SGP Okmulgee forest site (E21), and a 40-meter triangular tower at the North Slope of Alaska (NSA) Barrow site. The towers are used for meteorological, radiological, and other measurements.

  4. Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report. October 1 - December 31, 2009.

    SciTech Connect (OSTI)

    D. L. Sisterson

    2010-01-12

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real-time. Raw and processed data are then sent approximately daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. The U.S. Department of Energy (DOE) requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 - (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the first quarter of FY 2010 for the North Slope Alaska (NSA) locale is 1,987.20 hours (0.90 x 2,208); for the Southern Great Plains (SGP) site is 2,097.60 hours (0.95 x 2,208); and for the Tropical Western Pacific (TWP) locale is 1,876.8 hours (0.85 x 2,208). The ARM Mobile Facility (AMF) deployment in Graciosa Island, the Azores, Portugal, continues; its OPSMAX time this quarter is 2,097.60 hours (0.95 x 2,208). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the Archive. Data not at the Archive are the result of downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is directly related to

  5. ARM-UAV TWP-ICE Payload Instrumentation Details

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

    Payload Instrumentation Details McCoy, Robert Sandia National Laboratories Tooman, Tim Sandia National Laboratories McFarquhar, Greg University of Illinois Category: Field ...

  6. Heating Profiles Derived From Cm-wavelength Radar During TWP...

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

    heating Dry monsoon (10.5 mm day -1 ) - Weaker events with a large shallow convection component and lower level heating Break period (8.5 mm day -1 ) - Mostly deep convection...

  7. A TWP-ICE High-Level Cloud Case Study

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

    and high-level cloud data set that will increase our understanding of the processes that result in the formation and maintenance of tropical anvils and extended cirrus layers. ...

  8. Title: Radar-observed convective characteristics during TWP-ICE

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

    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...

  9. MISR-Derived Statistics of Cumulus Geometry at TWP Site

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

    ... We found that the satellite-derived basic statistics are similar to those from ... New directions in earth observing: Scientific applications of multi-angle remote sensing. ...

  10. Cloud Properties and Radiative Heating Rates for TWP (Dataset...

    Office of Scientific and Technical Information (OSTI)

    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 ...

  11. An Automatic Doppler Spectrum Classifier for the MMCRs

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

    An Automatic Doppler Spectrum Classifier for the MMCRs Luke, Edward Brookhaven National Laboratory Kollias, Pavlos Brookhaven National Laboratory Clothiaux, Eugene The Pennsylvania State University Johnson, Karen Brookhaven National Laboratory Miller, Mark Brookhaven National Laboratory Widener, Kevin Pacific Northwest National Laboratory Jensen, Michael Brookhaven National Laboratory Vogelmann, Andrew Brookhaven National Laboratory Category: Instruments The ARM MMCR receivers at the SGP, NSA

  12. Failure and Redemption of Multifilter Rotating Shadowband Radiometer

    Office of Scientific and Technical Information (OSTI)

    (MFRSR)/Normal Incidence Multifilter Radiometer (NIMFR) Cloud Screening: Contrasting Algorithm Performance at Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) and Southern Great Plains (SGP) Sites (Journal Article) | SciTech Connect Journal Article: Failure and Redemption of Multifilter Rotating Shadowband Radiometer (MFRSR)/Normal Incidence Multifilter Radiometer (NIMFR) Cloud Screening: Contrasting Algorithm Performance at Atmospheric Radiation Measurement (ARM) North

  13. Atmospheric Radiation Measurement program climate research facility operations quarterly report January 1 - March 31, 2008.

    SciTech Connect (OSTI)

    Sisterson, D. L.

    2008-05-22

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. Table 1 shows the accumulated maximum operation time (planned uptime), actual hours of operation, and variance (unplanned downtime) for the period January 1 - March 31, 2008, for the fixed sites. The AMF is being deployed to China and is not in operation this quarter. The second quarter comprises a total of 2,184 hours. The average as well as the individual site values exceeded our goal this quarter. The Site Access Request System is a web-based database used to track visitors to the fixed and mobile sites, all of which have facilities that can be visited. The NSA locale has the Barrow and Atqasuk sites. The SGP site has a central facility, 23 extended facilities, 4 boundary facilities, and 3 intermediate facilities. The TWP locale has the Manus, Nauru, and Darwin sites. FKB represents the AMF statistics for the Haselbach, Germany, past deployment in 2007. NIM represents the AMF statistics for the Niamey, Niger, Africa, past deployment in 2006. PYE represents just the AMF Archive statistics for the Point Reyes, California, past deployment in 2005. In addition, users who do not want to wait for data to be provided through the ACRF Archive can request a research account on the local site data system. The seven computers for the research accounts are located at the Barrow

  14. ARM - Facility News Article

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

    New Data Loggers Deployed Bookmark and Share As shown in this partial screen capture, the Real Time Monitoring and Control feature displays data that allows local observers to quickly check the status of the instrument system. As part of ongoing effort to upgrade data loggers and logging systems throughout the ARM Climate Research Facility, new Campbell Loggers (version CR23X) are being installed at the Tropical Western Pacific (TWP) and at the North Slope of Alaska (NSA) locales. In fall 2003,

  15. ARM/NSA ES&H Policy Statement

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

    Facility North Slope of AlaskaAdjacent Arctic Ocean (ACRFNSAAAO) ES&H Policy Statement The ACRFNSAAAO ES&H Policy Statement describes the general safety-related ...

  16. Atmospheric Radiation Measurement program climate research facility operations quarterly report October 1 - December 31, 2007.

    SciTech Connect (OSTI)

    Sisterson, D. L.

    2008-01-24

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. Table 1 shows the accumulated maximum operation time (planned uptime), actual hours of operation, and variance (unplanned downtime) for the period October 1 - December 31, 2007, for the fixed sites and the mobile site. The AMF has been deployed to Germany and this was the final operational quarter. The first quarter comprises a total of 2,208 hours. Although the average exceeded our goal this quarter, a series of severe weather events (i.e., widespread ice storms) disrupted utility services, which affected the SGP performance measures. Some instruments were covered in ice and power and data communication lines were down for more than 10 days in some areas of Oklahoma and Kansas, which resulted in lost data at the SGP site. The Site Access Request System is a web-based database used to track visitors to the fixed sites, all of which have facilities that can be visited. The NSA locale has the Barrow and Atqasuk sites. The SGP site has a central facility, 23 extended facilities, 4 boundary facilities, and 3 intermediate facilities. The TWP locale has the Manus, Nauru, and Darwin sites. The AMF completed its mission at the end of this quarter in Haselback, Germany (FKB designation). NIM represents the AMF statistics for the Niamey, Niger, Africa, past deployment in 2006. PYE

  17. Validation of CERES/SARB Data Product Using ARM Surface Flux Observations

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

    CERES/SARB Data Product Using ARM Surface Flux Observations D. A. Rutan Analytical Services and Materials Inc. Hampton, Virginia T. P. Charlock National Aeronautics and Space Administration Langley Research Center Hampton, Virginia Introduction This paper uses surface observed broadband fluxes from Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP), ARM Tropical Western Pacific (TWP), and a number of other sites to validate model results from the Clouds and the Earth's Radiant

  18. ARM - Science Questions

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

    Science Questions Related Links SPARTICUS Home AAF Home Deployment Operations Measurements SGP Data Plots NASA Data Plots ARM Data Discovery Browse Data Experiment Planning SPARTICUS Proposal Abstract Science Questions Science and Operations (PDF, 1.01M) SPARTICUS Wiki News News & Press Backgrounder (PDF, 269K) Contacts Gerald Mace, Lead Scientist Science Questions Scatter plot of ice crystal number concentration from two different probes used during TWP-ICE. The differences are significant

  19. 1

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

    Evaluation of Cloud Cover, Cloud Effect, and Surface Radiation Budgets at the SGP and TWP ARM Sites K. L. Gaustad and C. N. Long Pacific Northwest National Laboratory Richland, Washington Introduction The U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Program has established networks of broadband shortwave (SW) radiometers at each of its field research sites. The shortwave flux analysis value-added product (SWFuxAnal VAP) applies a clear-sky detection and fitting

  20. Slide 1

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

    and Improving CRM and GCM Simulations of Cloud Systems with ARM Observations Xiaoqing Wu (Iowa State University) Qilong Min (SUNY at Albany) 1. Produce thermodynamically and dynamically consistent multi-year cloud and radiative properties over SGP and TWP sites (Wu, Park, and Min 2008, JAS) 2. Improve the GCM simulation of convection, clouds and radiative heating rates using CRM simulations and ARM observations (Wu et al. 2007, GRL) GCM ANN Radiative Heating Rate (K day -1 ) GCM ANN Ice Water

  1. Simultaneous Spectral Albedo Measurements Near the ARM SGP Central...

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

    varied noticeably within each day and between days, perhaps, because of bi-directional reflectance effects. Some preliminary calculations indicate that the differences that we...

  2. ARM - Field Campaign - Measuring Clouds at SGP with Stereo Photogramme...

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

    the form of the Point Cloud of Cloud Points Product (PCCPP). The PCCPP will: provide context on life-cycle stage and cloud position for vertically pointing radars, lidars, and...

  3. Merged MMCR-WSR88D Reflectivities at SGP

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

    Dong, Xiquan

    2008-03-05

    There are substantial attenuations of MMCR signals for very large LWP and during precipitation events. We have used the nearest precipitation radar (WSR-88D) to merge two measurements to better represent such selected cases. In the near future, we are going to provide all the cumulus cases from Jan. 1997 to present whenever the two datasets are available. The original 2 data sets:

  4. Broadband Heating Rate Profile Project (BBHRP) - SGP ripbe370mcfarlane...

    Office of Scientific and Technical Information (OSTI)

    Additionally, an interface between the RIPBE input file and the RRTM was developed using the new ARM integrated software development environment (ISDE) and effort was put into ...

  5. Broadband Heating Rate Profile Project (BBHRP) - SGP ripbe1mcfarlane...

    Office of Scientific and Technical Information (OSTI)

    Additionally, an interface between the RIPBE input file and the RRTM was developed using the new ARM integrated software development environment (ISDE) and effort was put into ...

  6. SGP Cloud and Land Surface Interaction Campaign (CLASIC)

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

    ... Journal of Geophysical Research, 102(D6)6831-6864. Kollias, P, EE Clothiaux, BA Albrecht, MA Miller, KP Moran, and KL Johnson. 2005. "The Atmospheric Radiation Measurement Program ...

  7. Direct Aerosol Forcing in the Infrared at the SGP Site?

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

    Washington Introduction Low level haze is often observed ... lowers the ambient temperature and consequently ... is to improve the treatment of radiative transfer in ...

  8. Soundings from SGP, June 2014 Sonde Comparison Study (Dataset...

    Office of Scientific and Technical Information (OSTI)

    Subject: 54 Environmental Sciences Atmospheric water; Atmospheric temperature; Atmospheric pressure; Horizontal wind Dataset File size NAView Dataset View Dataset DOI: 10.5439...

  9. Surface Albedo at ARM SGP from Helicopter Observations

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

    Aeronautics and Space Administration (NASA) Langley Research Center conducted a ... flights for various scene types. (Data is available from http:www-svg.larc.nasa.gov). ...

  10. ARM SGP and BN AERI Instrument Diagnostic Comparison and Preliminary...

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

    by Bechtel-Nevada (BN). Analysis produced the following preliminary results: (1) sky radiance data collected by both instruments are compatible and consistent and both...

  11. Surface Di-directional Reflectance Properties Over the ARM SGP...

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

    Z. Li Earth System Science Interdisciplinary Center University of Maryland College Park, Maryland Introduction Surface albedo is an important parameter in atmospheric...

  12. Preliminary Analysis of ARM SGP Area Sky Cover and Downwelling...

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

    Clarifying and Implementing a Stricter DOD Definition Across Datastreams C. Sivaraman, B. Ermold, M. Macduff Pacific Northwest National Laboratory Definition of DOD: All dimension, ...

  13. Atmospheric Radiation Measurement Program Climate Research Facility Operation quarterly report July 1 - September 30, 2010.

    SciTech Connect (OSTI)

    Sisterson, D. L.

    2010-10-26

    Individual raw datastreams from instrumentation at the Atmospheric Radiation Measurement (ARM) Climate Research Facility fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real-time. Raw and processed data are then sent approximately daily to the ARM Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual datastream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. The U.S. Department of Energy (DOE) requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1-(ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the fourth quarter of FY2010 for the Southern Great Plains (SGP) site is 2097.60 hours (0.95 2208 hours this quarter). The OPSMAX for the North Slope of Alaska (NSA) locale is 1987.20 hours (0.90 2208) and for the Tropical Western Pacific (TWP) locale is 1876.80 hours (0.85 2208). The first ARM Mobile Facility (AMF1) deployment in Graciosa Island, the Azores, Portugal, continues, so the OPSMAX time this quarter is 2097.60 hours (0.95 x 2208). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or datastream. Data availability reported here refers to the average of the individual, continuous datastreams that have been received by the Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is directly related to

  14. Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report April 1 - June 30, 2005

    SciTech Connect (OSTI)

    DL Sisterson

    2005-06-30

    Description. Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year dating back to 1998. The United States Department of Energy requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the third quarter for the Southern Great Plains (SGP) site is 2,074.8 hours (0.95 2,184 hours this quarter). The annual OPSMAX for the North Slope Alaska (NSA) site is 1,965.6 hours (0.90 2,184), and that for the Tropical Western Pacific (TWP) site is 1,856.4 hours (0.85 2,184). The OPSMAX time for the ARM Mobile Facility (AMF) is 2,074.8 (0.95 2,184). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the ACRF Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is directly related to individual instrument uptime. Thus, the average percent of data in

  15. Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report July 1 - September 30, 2005

    SciTech Connect (OSTI)

    DL Sisterson

    2005-09-30

    Description. Individual raw data streams from instrumentation at the ACRF fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at PNNL for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year dating back to 1998. The DOE requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the third quarter for the Southern Great Plains (SGP) site is 2,097.6 hours (0.95 2,208 hours this quarter). The OPSMAX for the North Slope Alaska (NSA) site is 1,987.2 hours (0.90 2,208), and that for the Tropical Western Pacific (TWP) site is 1,876.8 hours (0.85 2,208). The OPSMAX time for the ARM Mobile Facility (AMF) is 2,097.6 hours (0.95 2,208). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the ACRF Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is directly related to individual instrument uptime. Thus, the average percent of data in the Archive represents the average percent of the time (24 hours per day, 92 days for this quarter) the instruments were operating this

  16. Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report October 1 - December 31, 2005

    SciTech Connect (OSTI)

    Sisterson, DL

    2005-12-31

    Description. Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year dating back to 1998. The U.S. Department of Energy requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 – (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the third quarter for the Southern Great Plains (SGP) site is 2,097.6 hours (0.95 × 2,208 hours this quarter). The OPSMAX for the North Slope of Alaska (NSA) locale is 1,987.2 hours (0.90 × 2,208), and that for the Tropical Western Pacific (TWP) locale is 1,876.8 hours (0.85 × 2,208). The OPSMAX time for the ARM Mobile Facility (AMF) is 2,097.6 hours (0.95 × 2,208). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the ACRF Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is directly related to individual instrument uptime. Thus, the average percent

  17. Atmospheric Radiation Measurement program climate research facility operations quarterly report October 1 - December 31, 2008.

    SciTech Connect (OSTI)

    Sisterson, D. L.

    2009-01-15

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real-time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, they calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. The US Department of Energy (DOE) requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1-(ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the first quarter of FY 2009 for the Southern Great Plains (SGP) site is 2,097.60 hours (0.95 x 2,208 hours this quarter). The OPSMAX for the North Slope Alaska (NSA) locale is 1,987.20 hours (0.90 x 2,208), and for the Tropical Western Pacific (TWP) locale is 1,876.80 hours (0.85 x 2,208). The OPSMAX time for the ARM Mobile Facility (AMF) is not reported this quarter because the data have not yet been released from China to the DMF for processing. The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is

  18. Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report October 1 - December 31, 2004

    SciTech Connect (OSTI)

    Sisterson, DL

    2004-12-31

    Description. Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year dating back to 1998. The United States Department of Energy requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 – (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The annual OPSMAX time for the Southern Great Plains (SGP) site is 8,322 hours per year (0.95 × 8,760, the number hours in a year, not including leap year). The annual OPSMAX for the North Slope Alaska (NSA) site is 7,884 hours per year (0.90 × 8,760), and that for the Tropical Western Pacific (TWP) site is 7,446 hours per year (0.85 × 8,760). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the ACRF Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is directly related to individual instrument uptime. Thus, the average percent of data in the Archive represents the

  19. Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report January 1 - March 31, 2005

    SciTech Connect (OSTI)

    Sisterson, DL

    2005-03-31

    Description. Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year dating back to 1998. The United States Department of Energy requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 – (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for this second quarter for the Southern Great Plains (SGP) site is 2052 hours (0.95 × 2,160 hours this quarter). The annual OPSMAX for the North Slope Alaska (NSA) site is 1944 hours (0.90 × 2,160), and that for the Tropical Western Pacific (TWP) site is 1836 hours (0.85 × 2,160). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the ACRF Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is directly related to individual instrument uptime. Thus, the average percent of data in the Archive represents the average percent of the time (24 hours per day, 90

  20. Atmospheric Radiation Measurement Program Climate Research Facility Operations Cumulative Quarterly Report October 1, 2003 - September 30, 2004

    SciTech Connect (OSTI)

    Sisterson, DL

    2004-09-30

    Description. Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. The United States Department of Energy requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 – (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The annual OPSMAX time for the Southern Great Plains (SGP) site is 8,322 hours per year (0.95 × 8,760, the number hours in a year, not including leap year). The annual OPSMAX for the North Slope Alaska (NSA) site is 7,884 hours per year (0.90 × 8,760), and that for the Tropical Western Pacific (TWP) site is 7,446 hours per year (0.85 × 8,760). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the ACRF Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is directly related to individual instrument uptime. Thus, the average percent of data in the Archive represents the

  1. Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report January-March 2006

    SciTech Connect (OSTI)

    Sisterson, DL

    2006-03-31

    Description. Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year; and (2) site and fiscal year dating back to 1998. The U.S. Department of Energy requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 – (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the second quarter for the Southern Great Plains (SGP) site is 2,052 hours (0.95 × 2,160 hours this quarter). The OPSMAX for the North Slope Alaska (NSA) locale is 1,944 hours (0.90 × 2,160), and that for the Tropical Western Pacific (TWP) locale is 1,836 hours (0.85 × 2,160). The OPSMAX time for the ARM Mobile Facility (AMF) is 2,052 hours (0.95 × 2,160). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is directly related to individual instrument uptime. Thus, the average percent of data in the

  2. Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report July 1 – September 30, 2008

    SciTech Connect (OSTI)

    Sisterson, DL

    2008-09-30

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real-time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. The U.S. Department of Energy (DOE) requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 – (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the fourth quarter of FY 2008 for the Southern Great Plains (SGP) site is 2,097.60 hours (0.95 x 2,208 hours this quarter). The OPSMAX for the North Slope Alaska (NSA) locale is 1,987.20 hours (0.90 x 2,208), and for the Tropical Western Pacific (TWP) locale is 1,876.80 hours (0.85 x 2,208). The OPSMAX time for the ARM Mobile Facility (AMF) is not reported this quarter because the data have not yet been released from China to the DMF for processing. The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is

  3. A comparison of water vapor quantities from model short-range forecasts and ARM observations

    SciTech Connect (OSTI)

    Hnilo, J J

    2006-03-17

    Model evolution and improvement is complicated by the lack of high quality observational data. To address a major limitation of these measurements the Atmospheric Radiation Measurement (ARM) program was formed. For the second quarter ARM metric we will make use of new water vapor data that has become available, and called the 'Merged-sounding' value added product (referred to as OBS, within the text) at three sites: the North Slope of Alaska (NSA), Darwin Australia (DAR) and the Southern Great Plains (SGP) and compare these observations to model forecast data. Two time periods will be analyzed March 2000 for the SGP and October 2004 for both DAR and NSA. The merged-sounding data have been interpolated to 37 pressure levels (e.g., from 1000hPa to 100hPa at 25hPa increments) and time averaged to 3 hourly data for direct comparison to our model output.

  4. A Comparison of Water Vapor Quantities from Model Short-Range Forecasts and ARM Observations

    SciTech Connect (OSTI)

    Hnilo, J.

    2006-03-17

    Model evolution and improvement is complicated by the lack of high quality observational data. To address a major limitation of these measurements the Atmospheric Radiation Measurement (ARM) program was formed. For the second quarter ARM metric we will make use of new water vapor data that has become available, and called the “Mergedsounding” value added product (referred to as OBS, within the text) at three sites: the North Slope of Alaska (NSA), Darwin Australia (DAR) and the Southern Great Plains (SGP) and compare these observations to model forecast data. Two time periods will be analyzed March 2000 for the SGP and October 2004 for both DAR and NSA. The merged-sounding data have been interpolated to 37 pressure levels (e.g., from 1000hPa to 100hPa at 25hPa increments) and time averaged to 3 hourly data for direct comparison to our model output.

  5. ARM - Publications: Science Team Meeting Documents

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

    Continued Evaluation of the Microwave Radiometer Profiler Liljegren, J.C., Argonne National Laboratory Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Final results are presented for the two-year evaluation of the microwave radiometer profiler at the Southern Great Plains (SGP) and North Slope of Alaska (NSA) sites. Three aspects of the instrument system are examined: (1) reliability, (2) measurement accuracy, and (3) retrieval accuracy. Reliability of the instrument is

  6. 1

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

    Multi-Filter Rotating Shadowband Radiometers Mentor Report and Baseline Surface Radiation Network Submission Status G. Hodges Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder, Colorado Overview Currently 24 multi-filter rotating shadowband radiometers (MFRSRs) operate within the Atmospheric Radiation Measurement (ARM) Program. Eighteen MFRSRs are located at Southern Great Plains (SGP) site, one is located at each of the North Slope of Alaska (NSA) and

  7. 1

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

    Wave Cloud Radar Upgrades: Review, Status, and Plans K.B. Widener Pacific Northwest National Laboratory Richland, Washington K.P. Moran National Oceanic and Atmospheric Administration- Earth System Research Laboratory-Physical Sciences Division Boulder, Colorado Introduction The Atmospheric Radiation Measurement (ARM) Program currently operates five millimeter-wave cloud radars (MMCRs) at the ARM Climate Research Facility (ACRF) Southern Great Plains (SGP) site, North Slope of Alaska (NSA)

  8. Sheridan-PJ

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

    In Situ Measurement of Aerosol Light Absorption and Single-Scattering Albedo at the NSA and SGP CART Sites P. J. Sheridan, 1 D. J. Delene, and J. A. Ogren National Oceanic and Atmospheric Administration Climate Monitoring and Diagnostics Laboratory Boulder, Colorado 1 Also with Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder, Colorado Introduction The National Oceanic and Atmospheric Administration (NOAA) Climate Monitoring and Diagnostics Laboratory

  9. Parameterizing Size Distribution in Ice Clouds

    SciTech Connect (OSTI)

    DeSlover, Daniel; Mitchell, David L.

    2009-09-25

    optical properties formulated in terms of PSD parameters in combination with remote measurements of thermal radiances to characterize the small mode. This is possible since the absorption efficiency (Qabs) of small mode crystals is larger at 12 m wavelength relative to 11 m wavelength due to the process of wave resonance or photon tunneling more active at 12 m. This makes the 12/11 m absorption optical depth ratio (or equivalently the 12/11 m Qabs ratio) a means for detecting the relative concentration of small ice particles in cirrus. Using this principle, this project tested and developed PSD schemes that can help characterize cirrus clouds at each of the three ARM sites: SGP, NSA and TWP. This was the main effort of this project. These PSD schemes and ice sedimentation velocities predicted from them have been used to test the new cirrus microphysics parameterization in the GCM known as the Community Climate Systems Model (CCSM) as part of an ongoing collaboration with NCAR. Regarding the second problem, we developed and did preliminary testing on a passive thermal method for retrieving the total water path (TWP) of Arctic mixed phase clouds where TWPs are often in the range of 20 to 130 g m-2 (difficult for microwave radiometers to accurately measure). We also developed a new radar method for retrieving the cloud ice water content (IWC), which can be vertically integrated to yield the ice water path (IWP). These techniques were combined to determine the IWP and liquid water path (LWP) in Arctic clouds, and hence the fraction of ice and liquid water. We have tested this approach using a case study from the ARM field campaign called M-PACE (Mixed-Phase Arctic Cloud Experiment). This research led to a new satellite remote sensing method that appears promising for detecting low levels of liquid water in high clouds typically between -20 and -36 oC. We hope to develop this method in future research.

  10. Atmospheric Radiation Measurement program climate research facility operations quarterly report.

    SciTech Connect (OSTI)

    Sisterson, D. L.; Decision and Information Sciences

    2006-09-06

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year dating back to 1998. The U.S. Department of Energy requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1-(ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the third quarter for the Southern Great Plains (SGP) site is 2,074.80 hours (0.95 x 2,184 hours this quarter). The OPSMAX for the North Slope Alaska (NSA) locale is 1,965.60 hours (0.90 x 2,184), and that for the Tropical Western Pacific (TWP) locale is 1,856.40 hours (0.85 x 2,184). The OPSMAX time for the ARM Mobile Facility (AMF) is 2,074.80 hours (0.95 x 2,184). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is directly related to individual instrument uptime. Thus, the average percent of data in the Archive

  11. Atmospheric Radiation Measurement program climate research facility operations quarterly report July 1 - September 30, 2008.

    SciTech Connect (OSTI)

    Sisterson, D. L.

    2008-10-08

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real-time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. Table 1 shows the accumulated maximum operation time (planned uptime), actual hours of operation, and variance (unplanned downtime) for the period July 1 - September 30, 2008, for the fixed sites. The AMF has been deployed to China, but the data have not yet been released. The fourth quarter comprises a total of 2,208 hours. The average exceeded our goal this quarter. The Site Access Request System is a web-based database used to track visitors to the fixed and mobile sites, all of which have facilities that can be visited. The NSA locale has the Barrow and Atqasuk sites. The SGP site has a central facility, 23 extended facilities, 4 boundary facilities, and 3 intermediate facilities. The TWP locale has the Manus, Nauru, and Darwin sites. HFE represents the AMF statistics for the Shouxian, China, deployment in 2008. FKB represents the AMF statistics for the Haselbach, Germany, past deployment in 2007. NIM represents the AMF statistics for the Niamey, Niger, Africa, past deployment in 2006. PYE represents just the AMF Archive statistics for the Point Reyes, California, past deployment in 2005. In addition, users who do not want to wait for data to be provided through the ACRF Archive can request a research account on the local site data system. The seven computers for the

  12. Atmospheric Radiation Measurement program climate research facility operations quarterly report April 1 - June 30, 2007.

    SciTech Connect (OSTI)

    Sisterson, D. L.

    2007-07-26

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. The U.S. Department of Energy requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 - (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the third quarter of FY 2007 for the Southern Great Plains (SGP) site is 2,074.8 hours (0.95 x 2,184 hours this quarter). The OPSMAX for the North Slope Alaska (NSA) locale is 1,965.6 hours (0.90 x 2,184), and that for the Tropical Western Pacific (TWP) locale is 1,856.4 hours (0.85 x 2,184). The OPSMAX time for the ARM Mobile Facility (AMF) is 2,074.8 hours (0.95 x 2,184). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability is directly related to individual instrument uptime. Thus, the average percent of data in

  13. Dead-time Corrected Disdrometer Data

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

    Bartholomew, Mary Jane

    2008-03-05

    Original and dead-time corrected disdrometer results for observations made at SGP and TWP. The correction is based on the technique discussed in Sheppard and Joe, 1994. In addition, these files contain calculated radar reflectivity factor, mean Doppler velocity and attenuation for every measurement for both the original and dead-time corrected data at the following wavelengths: 0.316, 0.856, 3.2, 5, and 10cm (W,K,X,C,S bands). Pavlos Kollias provided the code to do these calculations.

  14. ARM - PI Product - Dead-time Corrected Disdrometer Data

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

    ProductsDead-time Corrected Disdrometer Data 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 PI Product : Dead-time Corrected Disdrometer Data Original and dead-time corrected disdrometer results for observations made at SGP and TWP. The correction is based on the technique discussed in Sheppard and Joe, 1994. In addition, these files contain calculated radar reflectivity factor, mean Doppler velocity and

  15. How Representative are the Cloud Regimes at the TWP Sites? … An ISCCP Perspective

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

    Do You Consume? How Much Do You Consume? September 23, 2014 - 3:43pm Addthis Want to view this interactive graphic in all its glory? Upgrade to a modern browser! How much energy do you use? See how much energy someone like you used in 2012. Select State U.S. Average 398,400,000 BTU That's like the energy in: Alaska U.S. Average burritos = 5,000 burritos Alaska U.S. Average sticks of dynamite k sticks of dynamite = 50,000 sticks of dynamite Alaska U.S. Average lbs. of coal = 1,000 lbs. of coal

  16. Cloud Property Retrieval Products for Graciosa Island, Azores

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

    Dong, Xiquan

    The motivation for developing this product was to use the Dong et al. 1998 method to retrieve cloud microphysical properties, such as cloud droplet effective radius, cloud droplets number concentration, and optical thickness. These retrieved properties have been used to validate the satellite retrieval, and evaluate the climate simulations and reanalyses. We had been using this method to retrieve cloud microphysical properties over ARM SGP and NSA sites. We also modified the method for the AMF at Shouxian, China and some IOPs, e.g. ARM IOP at SGP in March, 2000. The ARSCL data from ARM data archive over the SGP and NSA have been used to determine the cloud boundary and cloud phase. For these ARM permanent sites, the ARSCL data was developed based on MMCR measurements, however, there were no data available at the Azores field campaign. We followed the steps to generate this derived product and also include the MPLCMASK cloud retrievals to determine the most accurate cloud boundaries, including the thin cirrus clouds that WACR may under-detect. We use these as input to retrieve the cloud microphysical properties. Due to the different temporal resolutions of the derived cloud boundary heights product and the cloud properties product, we submit them as two separate netcdf files.

  17. Cloud Property Retrieval Products for Graciosa Island, Azores

    SciTech Connect (OSTI)

    Dong, Xiquan

    2014-05-05

    The motivation for developing this product was to use the Dong et al. 1998 method to retrieve cloud microphysical properties, such as cloud droplet effective radius, cloud droplets number concentration, and optical thickness. These retrieved properties have been used to validate the satellite retrieval, and evaluate the climate simulations and reanalyses. We had been using this method to retrieve cloud microphysical properties over ARM SGP and NSA sites. We also modified the method for the AMF at Shouxian, China and some IOPs, e.g. ARM IOP at SGP in March, 2000. The ARSCL data from ARM data archive over the SGP and NSA have been used to determine the cloud boundary and cloud phase. For these ARM permanent sites, the ARSCL data was developed based on MMCR measurements, however, there were no data available at the Azores field campaign. We followed the steps to generate this derived product and also include the MPLCMASK cloud retrievals to determine the most accurate cloud boundaries, including the thin cirrus clouds that WACR may under-detect. We use these as input to retrieve the cloud microphysical properties. Due to the different temporal resolutions of the derived cloud boundary heights product and the cloud properties product, we submit them as two separate netcdf files.

  18. Atmospheric Radiation Measurement program climate research facility operations quarterly report October 1 - December 31, 2006.

    SciTech Connect (OSTI)

    Sisterson, D. L.

    2007-03-14

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year dating back to 1998. Table 1 shows the accumulated maximum operation time (planned uptime), the actual hours of operation, and the variance (unplanned downtime) for the period October 1 through December 31, 2006, for the fixed and mobile sites. Although the AMF is currently up and running in Niamey, Niger, Africa, the AMF statistics are reported separately and not included in the aggregate average with the fixed sites. The first quarter comprises a total of 2,208 hours. For all fixed sites, the actual data availability (and therefore actual hours of operation) exceeded the individual (and well as aggregate average of the fixed sites) operational goal for the first quarter of fiscal year (FY) 2007. The Site Access Request System is a web-based database used to track visitors to the fixed sites, all of which have facilities that can be visited. The NSA locale has the Barrow and Atqasuk sites. The SGP site has a Central Facility, 23 extended facilities, 4 boundary facilities, and 3 intermediate facilities. The TWP locale has the Manus, Nauru, and Darwin sites. NIM represents the AMF statistics for the current deployment in Niamey, Niger, Africa. PYE represents the AMF statistics for the Point Reyes, California, past deployment in 2005. In addition, users who do not want to wait for data to be

  19. Calibrating and training of neutron based NSA techniques with less SNM standards

    SciTech Connect (OSTI)

    Geist, William H; Swinhoe, Martyn T; Bracken, David S; Freeman, Corey R; Newell, Matthew R

    2010-01-01

    Accessing special nuclear material (SNM) standards for the calibration of and training on nondestructive assay (NDA) instruments has become increasingly difficult in light of enhanced safeguards and security regulations. Limited or nonexistent access to SNM has affected neutron based NDA techniques more than gamma ray techniques because the effects of multiplication require a range of masses to accurately measure the detector response. Neutron based NDA techniques can also be greatly affected by the matrix and impurity characteristics of the item. The safeguards community has been developing techniques for calibrating instrumentation and training personnel with dwindling numbers of SNM standards. Monte Carlo methods have become increasingly important for design and calibration of instrumentation. Monte Carlo techniques have the ability to accurately predict the detector response for passive techniques. The Monte Carlo results are usually benchmarked to neutron source measurements such as californium. For active techniques, the modeling becomes more difficult because of the interaction of the interrogation source with the detector and nuclear material; and the results cannot be simply benchmarked with neutron sources. A Monte Carlo calculated calibration curve for a training course in Indonesia of material test reactor (MTR) fuel elements assayed with an active well coincidence counter (AWCC) will be presented as an example. Performing training activities with reduced amounts of nuclear material makes it difficult to demonstrate how the multiplication and matrix properties of the item affects the detector response and limits the knowledge that can be obtained with hands-on training. A neutron pulse simulator (NPS) has been developed that can produce a pulse stream representative of a real pulse stream output from a detector measuring SNM. The NPS has been used by the International Atomic Energy Agency (IAEA) for detector testing and training applications at the Agency due to the lack of appropriate SNM standards. This paper will address the effect of reduced access to SNM for calibration and training of neutron NDA applications along with the advantages and disadvantages of some solutions that do not use standards, such as the Monte Carlo techniques and the NPS.

  20. Short-Term Arctic Cloud Statistics at NSA from the Infrared Cloud Imager

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

    November 2002 1 Short-Term Energy Outlook November 2002 Overview World Oil Markets: During the past 3-4 months, OPEC 10 production has risen more quickly than projected, thus reducing upward pressure on prices. More specifically, while the West Texas Intermediate (WTI) crude oil spot price averaged $28.84 in October, about $6.70 per barrel above the year-ago level (Figure 1), the WTI average price for fourth quarter 2002 is now projected to soften to $28.20, which is about $2 per barrel below

  1. New ARM Data Stream: Surface Images at NSA/AAO Sites in Barrow...

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

    Laboratory Richland, Washington Abstract Web-enabled video cameras have been placed at ... This has been achieved at Barrow by placing a down-looking web camera on the 40-meter ...

  2. Evaluating Global Aerosol Models and Aerosol and Water Vapor Properties Near Clouds

    SciTech Connect (OSTI)

    Richard A. Ferrare; David D. Turner

    2011-09-01

    Project goals: (1) Use the routine surface and airborne measurements at the ARM SGP site, and the routine surface measurements at the NSA site, to continue our evaluations of model aerosol simulations; (2) Determine the degree to which the Raman lidar measurements of water vapor and aerosol scattering and extinction can be used to remotely characterize the aerosol humidification factor; (3) Use the high temporal resolution CARL data to examine how aerosol properties vary near clouds; and (4) Use the high temporal resolution CARL and Atmospheric Emitted Radiance Interferometer (AERI) data to quantify entrainment in optically thin continental cumulus clouds.

  3. Eddy Correlation Flux Measurement System (ECOR) Handbook

    SciTech Connect (OSTI)

    Cook, DR

    2011-01-31

    The eddy correlation (ECOR) flux measurement system provides in situ, half-hour measurements of the surface turbulent fluxes of momentum, sensible heat, latent heat, and carbon dioxide (CO2) (and methane at one Southern Great Plains extended facility (SGP EF) and the North Slope of Alaska Central Facility (NSA CF). The fluxes are obtained with the eddy covariance technique, which involves correlation of the vertical wind component with the horizontal wind component, the air temperature, the water vapor density, and the CO2 concentration.

  4. Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report. October 1 - December 31, 2010.

    SciTech Connect (OSTI)

    Sisterson, D. L.

    2011-02-01

    Individual raw datastreams from instrumentation at the Atmospheric Radiation Measurement (ARM) Climate Research Facility fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near-real time. Raw and processed data are then sent approximately daily to the ARM Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of processed data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual datastream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. The U.S. Department of Energy (DOE) requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 - (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the first quarter of FY2010 for the Southern Great Plains (SGP) site is 2097.60 hours (0.95 x 2208 hours this quarter). The OPSMAX for the North Slope Alaska (NSA) locale is 1987.20 hours (0.90 x 2208) and for the Tropical Western Pacific (TWP) locale is 1876.80 hours (0.85 x 2208). The first ARM Mobile Facility (AMF1) deployment in Graciosa Island, the Azores, Portugal, continued through this quarter, so the OPSMAX time this quarter is 2097.60 hours (0.95 x 2208). The second ARM Mobile Facility (AMF2) began deployment this quarter to Steamboat Springs, Colorado. The experiment officially began November 15, but most of the instruments were up and running by November 1. Therefore, the OPSMAX time for the AMF2 was 1390.80 hours (.95 x 1464 hours) for November and December (61 days). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It

  5. Atmospheric Radiation Measurement program climate research facility operations quarterly report January 1 - March 31, 2009.

    SciTech Connect (OSTI)

    Sisterson, D. L.

    2009-04-23

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real-time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. The U.S. Department of Energy (DOE) requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 - (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the second quarter of FY 2009 for the Southern Great Plains (SGP) site is 2,052.00 hours (0.95 x 2,160 hours this quarter). The OPSMAX for the North Slope Alaska (NSA) locale is 1,944.00 hours (0.90 x 2,160), and for the Tropical Western Pacific (TWP) locale is 1,836.00 hours (0.85 x 2,160). The OPSMAX time for the ARM Mobile Facility (AMF) is not reported this quarter because not all of the metadata have been acquired that are used to generate this metric. The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data availability

  6. Atmospheric Radiation Measurement program climate research facilities quarterly report April 1 - June 30, 2009.

    SciTech Connect (OSTI)

    Sisterson, D. L.

    2009-07-14

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near-real time. Raw and processed data are then sent approximately daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. The U.S. Department of Energy (DOE) requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 - (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the third quarter of FY 2009 for the Southern Great Plains (SGP) site is 2,074.80 hours (0.95 x 2,184 hours this quarter); for the North Slope Alaska (NSA) locale it is 1,965.60 hours (0.90 x 2,184); and for the Tropical Western Pacific (TWP) locale it is 1,856.40 hours (0.85 x 2,184). The ARM Mobile Facility (AMF) was officially operational May 1 in Graciosa Island, the Azores, Portugal, so the OPSMAX time this quarter is 1390.80 hours (0.95 x 1464). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the Archive. Data not at the Archive are caused by downtime (scheduled or unplanned) of the individual instruments. Therefore, data

  7. Atmospheric Radiation Measurement program climate research facility operations quarterly report July 1 - Sep. 30, 2009.

    SciTech Connect (OSTI)

    Sisterson, D. L.

    2009-10-15

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near-real time. Raw and processed data are then sent approximately daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. The U.S. Department of Energy (DOE) requires national user facilities to report time-based operating data. The requirements concern the actual hours of operation (ACTUAL); the estimated maximum operation or uptime goal (OPSMAX), which accounts for planned downtime; and the VARIANCE [1 - (ACTUAL/OPSMAX)], which accounts for unplanned downtime. The OPSMAX time for the fourth quarter of FY 2009 for the Southern Great Plains (SGP) site is 2,097.60 hours (0.95 ? 2,208 hours this quarter). The OPSMAX for the North Slope Alaska (NSA) locale is 1,987.20 hours (0.90 ? 2,208) and for the Tropical Western Pacific (TWP) locale is 1,876.8 hours (0.85 ? 2,208). The ARM Mobile Facility (AMF) was officially operational May 1 in Graciosa Island, the Azores, Portugal, so the OPSMAX time this quarter is 2,097.60 hours (0.95 x 2,208). The differences in OPSMAX performance reflect the complexity of local logistics and the frequency of extreme weather events. It is impractical to measure OPSMAX for each instrument or data stream. Data availability reported here refers to the average of the individual, continuous data streams that have been received by the Archive. Data not at the Archive result from downtime (scheduled or unplanned) of the individual instruments. Therefore, data

  8. Diurnal Cycle of Convection at the ARM SGP Site: Role of Large...

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

    over both land and oceans (Gray and Jacobson 1977; Dai 2001; Nesbitt and Zipser 2003). ... has a significant impact on the atmospheric radiation budget and cloud radiative forcing. ...

  9. Broadband Heating Rate Profile Project (BBHRP) - SGP 1bbhrpripbe1mcfar...

    Office of Scientific and Technical Information (OSTI)

    Additionally, an interface between the RIPBE input file and the RRTM was developed using the new ARM integrated software development environment (ISDE) and effort was put into ...

  10. Broadband Heating Rate Profile Project (BBHRP) - SGP 1bbhrpripbe1mcfar...

    Office of Scientific and Technical Information (OSTI)

    Profile (BBHRP) Project is to provide a structure for the comprehensive assessment of our ... DOE Contract Number: DE-AC05-00OR22725 Resource Type: Dataset Data Type: Numeric Data ...

  11. Searching for Global Dimming Evidence at SGP and Update of ARM...

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

    frequency. A recent news article on global dimming in the web-based newspaper the Guardian Unlimited seems to have brought this issue to the...

  12. SGP Cloud and Land Surface Interaction Campaign (CLASIC): Science and Implementation Plan

    SciTech Connect (OSTI)

    MA Miller; R Avissar; LK Berg; SA Edgerton; ML Fischer; T Jackson; B.Kustas; PJ Lamb; GM McFarquhar; Q Min; B Schmid; MS Torn; DD Turner

    2007-06-30

    The Cloud and Land Surface Interaction Campaign is a field experiment designed to collect a comprehensive data set that can be used to quantify the interactions that occur between the atmosphere, biosphere, land surface, and subsurface. A particular focus will be on how these interactions modulate the abundance and characteristics of small and medium size cumuliform clouds that are generated by local convection. These interactions are not well understood and are responsible for large uncertainties in global climate models, which are used to forecast future climate states. The campaign will be conducted from June 8 to June 30, 2007, at the U.S. Department of Energys Atmospheric Radiation Measurement Climate Research Facility Southern Great Plains site. Data will be collected using eight aircraft equipped with a variety of specialized sensors, four specially instrumented surface sites, and two prototype surface radar systems. The architecture of Cloud and Land Surface Interaction Campaign includes a high-altitude surveillance aircraft and enhanced vertical thermodynamic and wind profile measurements that will characterize the synoptic scale structure of the clouds and the land surface within the Atmospheric Radiation Measurement Climate Research Facility Southern Great Plains site. Mesoscale and microscale structures will be sampled with a variety of aircraft, surface, and radar observations.

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

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

    Hodges, Gary

    1993-07-04

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

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

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

    Hodges, Gary

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

  15. C-Band Scanning ARM Precipitation Radar (C-SAPR) Handbook

    SciTech Connect (OSTI)

    Widener, K; Bharadwaj, N

    2012-11-13

    The C-band scanning ARM precipitation radar (C-SAPR) is a scanning polarimetric Doppler radar transmitting simultaneously in both H and V polarizations. With a 350-kW magnetron transmitter, this puts 125 kW of transmitted power for each polarization. The receiver for the C-SAPR is a National Center for Atmospheric Research (NCAR) -developed Hi-Q system operating in a coherent-on-receive mode. The ARM Climate Research Facility operates two C-SAPRs; one of them is deployed near the Southern Great Plains (SGP) Central Facility near the triangular array of X-SAPRs, and the second C-SAPR is deployed at ARM’s Tropical Western Pacific (TWP) site on Manus Island in Papua New Guinea.

  16. ARM - Contacts

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

    Contacts Related Links RHUBC Home NSA Home ARM Data Discovery Browse Data Experiment ... instrument mentor for the GVR Mark Ivey, NSA site manager Hans Verlinde, NSA site ...

  17. Atmosphere-Land-Surface Interaction over the Southern Great Plains: Diagnosis of Mechanisms from SGP ARM Data

    SciTech Connect (OSTI)

    Sumant Nigam

    2013-02-01

    Work reported included analysis of pentad (5 day) averaged data, proposal of a hypothesis concerning the key role of the Atlantic Multi-decadal Oscillation in 20th century drought and wet periods over the Great Plains, analysis of recurrent super-synoptic evolution of the Great Plains low-level jet, and study of pentad evolution of the 1988 drought and 1993 flood over the Great Plains from a NARR perspective on the atmospheric and terrestrial water balance.

  18. ARM - VAP Product - radflux1long

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

    Facility, Atqasuk AK Southern Great Plains SGP C1 Browse Data Central Facility, Lamont, OK SGP E1 Browse Data Larned, KS (Extended) SGP E2 Browse Data Hillsboro, KS (Extended) SGP...

  19. ARM - VAP Product - gaeriprof

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

    Plains SGP B1 Browse Data Hillsboro, KS (Boundary) retired SGP B4 Browse Data Vici, OK (Boundary) retired SGP B5 Browse Data Morris, OK (Boundary) retired SGP B6 Browse Data...

  20. ARM - VAP Product - lssonde

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

    Plains SGP B1 Browse Data Hillsboro, KS (Boundary) retired SGP B4 Browse Data Vici, OK (Boundary) retired SGP B5 Browse Data Morris, OK (Boundary) retired SGP B6 Browse Data...

  1. ARM - Datastreams - irt200ms

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

    KS (Extended) SGP E10 Browse Data Tyro, KS (Extended) retired SGP E11 Browse Data Byron, OK (Extended) SGP E12 Browse Data Pawhuska, OK (Extended) SGP E13 Browse Data Lamont, OK...

  2. ARM - VAP Product - sondewndcalc

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

    Plains SGP B1 Browse Data Hillsboro, KS (Boundary) retired SGP B4 Browse Data Vici, OK (Boundary) retired SGP B5 Browse Data Morris, OK (Boundary) retired SGP B6 Browse Data...

  3. ARM - VAP Product - aerilblclouds

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

    Plains SGP B1 Browse Data Hillsboro, KS (Boundary) retired SGP B5 Browse Data Morris, OK (Boundary) retired SGP B6 Browse Data Purcell, OK (Boundary) retired SGP C1 Browse Data...

  4. ARM - VAP Product - 30qcecor

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

    retired SGP E10 Browse Data Tyro, KS (Extended) retired SGP E14 Browse Data Lamont, OK (Extended, secondary) SGP E16 Browse Data Vici, OK (Extended) retired SGP E21 Browse...

  5. ARM - Datastreams - swatspcp

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

    retired SGP E10 Browse Data Tyro, KS (Extended) retired SGP E12 Browse Data Pawhuska, OK (Extended) SGP E16 Browse Data Vici, OK (Extended) retired SGP E18 Browse Data Morris,...

  6. ARM - VAP Product - 5mwravg

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

    Plains SGP B1 Browse Data Hillsboro, KS (Boundary) retired SGP B4 Browse Data Vici, OK (Boundary) retired SGP B5 Browse Data Morris, OK (Boundary) retired SGP B6 Browse Data...

  7. ARM - Datastreams - 5ebbr

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

    retired SGP E9 Browse Data Ashton, KS (Extended) SGP E12 Browse Data Pawhuska, OK (Extended) SGP E13 Browse Data Lamont, OK (Extended) SGP E15 Browse Data Ringwood, OK...

  8. ARM - Instrument - ceil

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

    Plains SGP B1 Browse Data Hillsboro, KS (Boundary) retired SGP B4 Browse Data Vici, OK (Boundary) retired SGP B5 Browse Data Morris, OK (Boundary) retired SGP B6 Browse Data...

  9. ARM - VAP Product - 15swfanalsiros1long

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

    retired SGP E10 Browse Data Tyro, KS (Extended) retired SGP E11 Browse Data Byron, OK (Extended) retired SGP E12 Browse Data Pawhuska, OK (Extended) retired SGP E13 Browse...

  10. ARM - VAP Product - 1swfanalsiros1long

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

    retired SGP E10 Browse Data Tyro, KS (Extended) retired SGP E11 Browse Data Byron, OK (Extended) retired SGP E12 Browse Data Pawhuska, OK (Extended) retired SGP E13 Browse...

  11. ARM - VAP Product - aeriprof

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

    Plains SGP B1 Browse Data Hillsboro, KS (Boundary) retired SGP B4 Browse Data Vici, OK (Boundary) retired SGP B5 Browse Data Morris, OK (Boundary) retired SGP B6 Browse Data...

  12. ARM - Datastreams - sonde

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

    Plains SGP B1 Browse Data Hillsboro, KS (Boundary) retired SGP B4 Browse Data Vici, OK (Boundary) retired SGP B5 Browse Data Morris, OK (Boundary) retired SGP C1 Browse Data...

  13. ARM - Datastreams - sondewrpn

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

    SGP B1 Browse Data Hillsboro, KS (Boundary) retired SGP B4 Browse Data Vici, OK (Boundary) retired SGP B5 Browse Data Morris, OK (Boundary) retired SGP B6 Browse Data Purcell...

  14. Evaluating cloud retrieval algorithms with the ARM BBHRP framework

    SciTech Connect (OSTI)

    Mlawer,E.; Dunn,M.; Mlawer, E.; Shippert, T.; Troyan, D.; Johnson, K. L.; Miller, M. A.; Delamere, J.; Turner, D. D.; Jensen, M. P.; Flynn, C.; Shupe, M.; Comstock, J.; Long, C. N.; Clough, S. T.; Sivaraman, C.; Khaiyer, M.; Xie, S.; Rutan, D.; Minnis, P.

    2008-03-10

    Climate and weather prediction models require accurate calculations of vertical profiles of radiative heating. Although heating rate calculations cannot be directly validated due to the lack of corresponding observations, surface and top-of-atmosphere measurements can indirectly establish the quality of computed heating rates through validation of the calculated irradiances at the atmospheric boundaries. The ARM Broadband Heating Rate Profile (BBHRP) project, a collaboration of all the working groups in the program, was designed with these heating rate validations as a key objective. Given the large dependence of radiative heating rates on cloud properties, a critical component of BBHRP radiative closure analyses has been the evaluation of cloud microphysical retrieval algorithms. This evaluation is an important step in establishing the necessary confidence in the continuous profiles of computed radiative heating rates produced by BBHRP at the ARM Climate Research Facility (ACRF) sites that are needed for modeling studies. This poster details the continued effort to evaluate cloud property retrieval algorithms within the BBHRP framework, a key focus of the project this year. A requirement for the computation of accurate heating rate profiles is a robust cloud microphysical product that captures the occurrence, height, and phase of clouds above each ACRF site. Various approaches to retrieve the microphysical properties of liquid, ice, and mixed-phase clouds have been processed in BBHRP for the ACRF Southern Great Plains (SGP) and the North Slope of Alaska (NSA) sites. These retrieval methods span a range of assumptions concerning the parameterization of cloud location, particle density, size, shape, and involve different measurement sources. We will present the radiative closure results from several different retrieval approaches for the SGP site, including those from Microbase, the current 'reference' retrieval approach in BBHRP. At the NSA, mixed-phase clouds and

  15. Using Radar, Lidar, and Radiometer measurements to Classify Cloud Type and Study Middle-Level Cloud Properties

    SciTech Connect (OSTI)

    Wang, Zhien

    2010-06-29

    The project is mainly focused on the characterization of cloud macrophysical and microphysical properties, especially for mixed-phased clouds and middle level ice clouds by combining radar, lidar, and radiometer measurements available from the ACRF sites. First, an advanced mixed-phase cloud retrieval algorithm will be developed to cover all mixed-phase clouds observed at the ACRF NSA site. The algorithm will be applied to the ACRF NSA observations to generate a long-term arctic mixed-phase cloud product for model validations and arctic mixed-phase cloud processes studies. To improve the representation of arctic mixed-phase clouds in GCMs, an advanced understanding of mixed-phase cloud processes is needed. By combining retrieved mixed-phase cloud microphysical properties with in situ data and large-scale meteorological data, the project aim to better understand the generations of ice crystals in supercooled water clouds, the maintenance mechanisms of the arctic mixed-phase clouds, and their connections with large-scale dynamics. The project will try to develop a new retrieval algorithm to study more complex mixed-phase clouds observed at the ACRF SGP site. Compared with optically thin ice clouds, optically thick middle level ice clouds are less studied because of limited available tools. The project will develop a new two wavelength radar technique for optically thick ice cloud study at SGP site by combining the MMCR with the W-band radar measurements. With this new algorithm, the SGP site will have a better capability to study all ice clouds. Another area of the proposal is to generate long-term cloud type classification product for the multiple ACRF sites. The cloud type classification product will not only facilitates the generation of the integrated cloud product by applying different retrieval algorithms to different types of clouds operationally, but will also support other research to better understand cloud properties and to validate model simulations. The

  16. Determining Best Estimates and Uncertainties in Cloud Microphysical Parameters from ARM Field Data: Implications for Models, Retrieval Schemes and Aerosol-Cloud-Radiation Interactions

    SciTech Connect (OSTI)

    McFarquhar, Greg

    2015-12-28

    We proposed to analyze in-situ cloud data collected during ARM/ASR field campaigns to create databases of cloud microphysical properties and their uncertainties as needed for the development of improved cloud parameterizations for models and remote sensing retrievals, and for evaluation of model simulations and retrievals. In particular, we proposed to analyze data collected over the Southern Great Plains (SGP) during the Mid-latitude Continental Convective Clouds Experiment (MC3E), the Storm Peak Laboratory Cloud Property Validation Experiment (STORMVEX), the Small Particles in Cirrus (SPARTICUS) Experiment and the Routine AAF Clouds with Low Optical Water Depths (CLOWD) Optical Radiative Observations (RACORO) field campaign, over the North Slope of Alaska during the Indirect and Semi-Direct Aerosol Campaign (ISDAC) and the Mixed-Phase Arctic Cloud Experiment (M-PACE), and over the Tropical Western Pacific (TWP) during The Tropical Warm Pool International Cloud Experiment (TWP-ICE), to meet the following 3 objectives; derive statistical databases of single ice particle properties (aspect ratio AR, dominant habit, mass, projected area) and distributions of ice crystals (size distributions SDs, mass-dimension m-D, area-dimension A-D relations, mass-weighted fall speeds, single-scattering properties, total concentrations N, ice mass contents IWC), complete with uncertainty estimates; assess processes by which aerosols modulate cloud properties in arctic stratus and mid-latitude cumuli, and quantify aerosol’s influence in context of varying meteorological and surface conditions; and determine how ice cloud microphysical, single-scattering and fall-out properties and contributions of small ice crystals to such properties vary according to location, environment, surface, meteorological and aerosol conditions, and develop parameterizations of such effects.In this report we describe the accomplishments that we made on all 3 research objectives.

  17. Evaluation of cloud fraction and its radiative effect simulated by IPCC AR4 global models against ARM surface observations

    SciTech Connect (OSTI)

    Qian, Yun; Long, Charles N.; Wang, Hailong; Comstock, Jennifer M.; McFarlane, Sally A.; Xie, Shaocheng

    2012-02-17

    Cloud Fraction (CF) is the dominant modulator of radiative fluxes. In this study, we evaluate CF simulations in the IPCC AR4 GCMs against ARM ground measurements, with a focus on the vertical structure, total amount of cloud and its effect on cloud shortwave transmissivity, for both inter-model deviation and model-measurement discrepancy. Our intercomparisons of three CF or sky-cover related dataset reveal that the relative differences are usually less than 10% (5%) for multi-year monthly (annual) mean values, while daily differences are quite significant. The results also show that the model-observation and the inter-model deviations have a similar magnitude for the total CF (TCF) and the normalized cloud effect, and they are twice as large as the surface downward solar radiation and cloud transmissivity. This implies that the other cloud properties, such as cloud optical depth and height, have a similar magnitude of disparity to TCF among the GCMs, and suggests that a better agreement among the GCMs in solar radiative fluxes could be the result of compensating errors in either cloud vertical structure, cloud optical depth or cloud fraction. Similar deviation pattern between inter-model and model-measurement suggests that the climate models tend to generate larger bias against observations for those variables with larger inter-model deviation. The simulated TCF from IPCC AR4 GCMs are very scattered through all seasons over three ARM sites: Southern Great Plains (SGP), Manus, Papua New Guinea and North Slope of Alaska (NSA). The GCMs perform better at SGP than at Manus and NSA in simulating the seasonal variation and probability distribution of TCF; however, the TCF in these models is remarkably underpredicted and cloud transmissivity is less susceptible to the change of TCF than the observed at SGP. Much larger inter-model deviation and model bias are found over NSA than the other sites in estimating the TCF, cloud transmissivity and cloud-radiation interaction

  18. Aspects of the quality of data from the Southern Great Plains (SGP) cloud and radiation testbed (CART) site broadband radiation sensors

    SciTech Connect (OSTI)

    Splitt, M.E.; Wesely, M.L.

    1996-04-01

    A systmatic evaluation of the performance of broadband radiometers at the Radiation Testbed (CART) site is needed to estimate the uncertainties of the irradiance observations. Here, net radiation observed with the net radiometer in the enrgy balance Bowen ratio station at the Central facility is compared with the net radiation computed as the sum of component irradiances recorded by nearby pyranameters and pyrgeometers. In addition, data obtained from the central facility pyranometers, pyrgeometers, and pyrheliometers are examined for April 1994, when intensive operations periods were being carried out. The data used in this study are from central facility radiometers in a solar and infrared observation station, and EBBR station, the so-called `BSRN` set of upward pointing radiometers, and a set of radiometers pointed down at the 25-m level of a 60-m tower.

  19. A comparison of radiometric fluxes influenced by parameterization cirrus clouds with observed fluxes at the Southern Great Plains (SGP) cloud and radiation testbed (CART) site

    SciTech Connect (OSTI)

    Mace, G.G.; Ackerman, T.P.; George, A.T.

    1996-04-01

    The data from the Atmospheric Radiation Measurement (ARM) Program`s Southern Great plains Site (SCP) is a valuable resource. We have developed an operational data processing and analysis methodology that allows us to examine continuously the influence of clouds on the radiation field and to test new and existing cloud and radiation parameterizations.

  20. LandUse/Land Cover Map of the CF of ARM in the SGP Site Using DOE's Multispectral Thermal Imager (MTI) Satellite Images

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

    Land Use/Land Cover Map of the Central Facility of ARM in the Southern Great Plains Site Using DOE's Multi-Spectral Thermal Imager Satellite Images S. E. Báez Cazull Pre-Service Teacher Program University of Puerto Rico Rio Piedras, Puerto Rico A. Cialla Brookhaven National Laboratory Department of Environmental Sciences Upton, New York Introduction The Atmospheric Radiation Measurement (ARM) Program is a multi-laboratory, interagency program that was created with funding from the U.S.

  1. ARM - Education Article

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

    ARM Education Team Visits NSA Bookmark and Share Bernie Zak, NSA ARM site manager, gives a tour of the NSA site. In October, the ARM Education team met with several teachers and ...

  2. Boundary Layer Cloudiness Parameterizations Using ARM Observations

    SciTech Connect (OSTI)

    Bruce Albrecht

    2004-09-15

    This study used DOE ARM data and facilities to: (1) study macroscopic properties of continental stratus clouds at SGP and the factors controlling these properties, (2) develop a scientific basis for understanding the processes responsible for the formation of boundary layer clouds using ARM observations in conjunction with simple parametric models and LES, and (3) evaluate cumulus cloud characteristics retrieved from the MMCR operating at TWP-Nauru. In addition we have used high resolution 94 GHz observations of boundary layer clouds and precipitation to: (1) develop techniques for using high temporal resolution Doppler velocities to study large-eddy circulations and turbulence in boundary layer clouds and estimate the limitations of using current and past MMCR data for boundary layer cloud studies, (2) evaluate the capability and limitations of the current MMCR data for estimating reflectivity, vertical velocities, and spectral under low- signal-to-noise conditions associated with weak no n-precipitating clouds, (3) develop possible sampling modes for the new MMCR processors to allow for adequate sampling of boundary layer clouds, and (4) retrieve updraft and downdraft structures under precipitating conditions.

  3. Final Technical Report ARM DOE Grant #DE-FG02-03ER63520 Parameterizations of Shortwave Radiactive Properties of Broken Clouds from Satellite and Ground-Based Measurements

    SciTech Connect (OSTI)

    Albrecht, Bruce, A.

    2006-06-19

    This study used DOE ARM data and facilities to: 1) study macroscopic properties of continental stratus clouds at SGP and the factors controlling these properties, 2) develop a scientific basis for understanding the pocesses responsible for the formation of boundary layer clouds using ARM observations in conjunction with simple parametric models and LES, and 3) evaluate cumulus cloud characteristics retrieved retrieved from the MMCR operating at TWP-Nauru. In addition we have used high resolution 94 GHz observations of boundary layer clouds and precipitation to: 1)develop techniques for using high temporal resolution Doppler velocities to study large-eddy circulations and turbulence in boundary layer clouds and estimate the limitations of using current and past MMCR data for boundary layer cloud studies, 2) evaluate the capability and limitation of the current MMCR data for estimating reflectivity, vertical velocities, and spectral under low-signal-to-noise conditions associated with weak non-precipitating clouds, 3) develop possible sampling modes for the new MMCR processors to allow for adequate sampling of boundary layer clouds, and 4) retrieve updraft and downdraft structures under precipitating conditions.

  4. Self-consistency tests of large-scale dynamics parameterizations for single-column modeling

    SciTech Connect (OSTI)

    Edman, Jacob P.; Romps, David M.

    2015-03-18

    Large-scale dynamics parameterizations are tested numerically in cloud-resolving simulations, including a new version of the weak-pressure-gradient approximation (WPG) introduced by Edman and Romps (2014), the weak-temperature-gradient approximation (WTG), and a prior implementation of WPG. We perform a series of self-consistency tests with each large-scale dynamics parameterization, in which we compare the result of a cloud-resolving simulation coupled to WTG or WPG with an otherwise identical simulation with prescribed large-scale convergence. In self-consistency tests based on radiative-convective equilibrium (RCE; i.e., no large-scale convergence), we find that simulations either weakly coupled or strongly coupled to either WPG or WTG are self-consistent, but WPG-coupled simulations exhibit a nonmonotonic behavior as the strength of the coupling to WPG is varied. We also perform self-consistency tests based on observed forcings from two observational campaigns: the Tropical Warm Pool International Cloud Experiment (TWP-ICE) and the ARM Southern Great Plains (SGP) Summer 1995 IOP. In these tests, we show that the new version of WPG improves upon prior versions of WPG by eliminating a potentially troublesome gravity-wave resonance.

  5. Self-consistency tests of large-scale dynamics parameterizations for single-column modeling

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

    Edman, Jacob P.; Romps, David M.

    2015-03-18

    Large-scale dynamics parameterizations are tested numerically in cloud-resolving simulations, including a new version of the weak-pressure-gradient approximation (WPG) introduced by Edman and Romps (2014), the weak-temperature-gradient approximation (WTG), and a prior implementation of WPG. We perform a series of self-consistency tests with each large-scale dynamics parameterization, in which we compare the result of a cloud-resolving simulation coupled to WTG or WPG with an otherwise identical simulation with prescribed large-scale convergence. In self-consistency tests based on radiative-convective equilibrium (RCE; i.e., no large-scale convergence), we find that simulations either weakly coupled or strongly coupled to either WPG or WTG are self-consistent, butmore » WPG-coupled simulations exhibit a nonmonotonic behavior as the strength of the coupling to WPG is varied. We also perform self-consistency tests based on observed forcings from two observational campaigns: the Tropical Warm Pool International Cloud Experiment (TWP-ICE) and the ARM Southern Great Plains (SGP) Summer 1995 IOP. In these tests, we show that the new version of WPG improves upon prior versions of WPG by eliminating a potentially troublesome gravity-wave resonance.« less

  6. ARM - Instrument - met

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

    Browse Data Browse Plots Ashton, KS (Extended) SGP E11 Browse Data Browse Plots Byron, OK (Extended) SGP E13 Browse Data Browse Plots Lamont, OK (Extended) SGP E15 Browse Data...

  7. ARM - VAP Product - qcrad1long

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

    retired Southern Great Plains SGP C1 Browse Data Browse Plots Central Facility, Lamont, OK SGP E1 Browse Data Browse Plots Larned, KS (Extended) retired SGP E2 Browse Data Browse...

  8. ARM - VAP Product - sirs1dutt

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

    irradiance Locations Southern Great Plains SGP C1 Browse Data Central Facility, Lamont, OK retired SGP E1 Browse Data Larned, KS (Extended) retired SGP E2 Browse Data Hillsboro,...

  9. ARM - VAP Product - 15swfanalsirs1long

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

    albedo Locations Southern Great Plains SGP C1 Browse Data Central Facility, Lamont, OK SGP E1 Browse Data Larned, KS (Extended) retired SGP E2 Browse Data Hillsboro, KS...

  10. ARM - Instrument - sebs

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

    (71.393, -156.422, 0) Southern Great Plains SGP E14 Browse Data Browse Plots Lamont, OK (Extended, secondary) SGP E21 Browse Data Browse Plots Okmulgee, OK (Extended) SGP E31...

  11. ARM - VAP Product - 1swfanalsirs1long

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

    albedo Locations Southern Great Plains SGP C1 Browse Data Central Facility, Lamont, OK SGP E1 Browse Data Larned, KS (Extended) retired SGP E2 Browse Data Hillsboro, KS...

  12. Microsoft Word - ISDAC_description.doc

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

    Facility's (ACRF) North Slope of Alaska (NSA) locale for three weeks in April 2008. This ... surface-based measurements at the ACRF NSA locale provide retrievals of aerosol, ...

  13. ARM - Facility News Article

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

    Therefore, broadband radiometers at the ARM North Slope of Alaska (NSA) site are equipped ... loss correction methodology for surface broadband measurements acquired at the NSA site. ...

  14. ARMs Climate Change Educational Outreach on the North Slope...

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

    On the North Slope of Alaska (NSA), we focus on developing culturally responsive ... ARM's work on the NSA also includes curriculum development, teacher enrichment, teacher ...

  15. Slide 1

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

    across the North Slope of Alaska (NSA) from September 27 through October 22, ... A focused set of observation stations and soundings were in place across the NSA (figure ...

  16. ARM - Field Campaign - Indirect and Semi-Direct Aerosol Campaign...

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

    Measurements 2009.04.07, Lubin, NSA ISDAC RISCAM - Humidified Tandem Differential Mobility Analyzer (HTDMA) 2008.04.01, Collins, NSA ISDAC - NASA ARCTAS Coordination with ...

  17. ARM - Firearm Training and Authorization List

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

    NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact ...

  18. ARM - Publications: Science Team Meeting Documents: Deployment...

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

    Deployment of a scintillometer for optical turbulence investigation at NSA - Barrow ... scintillometer to the ARM - NSA site at Barrow in fall 2004 for ...

  19. ARM - International Arctic Research

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

    Related Information Collaborations Meetings of Interest Data Sources ARM Data Discovery Browser NSA Data Past ARM NSA campaigns NCARUCAR National Oceanic and Atmospheric ...

  20. ARM - Instrument - mettwr

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

    Instrument : Surface and Tower Meteorological Instrumentation at NSA (METTWR) Instrument ... Surface and Tower Meteorological Instrumentation at NSA (METTWR) use mainly conventional ...

  1. ARM - Collaborations

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

    Related Information Collaborations Meetings of Interest Data Sources ARM Data Discovery Browser NSA Data Past ARM NSA campaigns NCARUCAR National Oceanic and Atmospheric ...

  2. ARM - Facility News Article

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

    Research Facility's North Slope of Alaska (NSA) locale was completed the weekend of April ... observations during arctic winters at the NSA and other high latitude research sites. ...

  3. ARM - Information for Guest Scientists

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

    NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact ...

  4. ARM - Facility News Article

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

    instruments of any installation at ARM's NSA site, including five radiometers, two ... instruments of any installation at ARM's NSA site, including five radiometers, two ...

  5. A 22-Year Dataset of Surface Longwave Fluxes in the Arctic

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

    Measurement (ARM) North Slope of Alaska (NSA) site in Barrow, Alaska, and from the ... SHEBA and NSA radarlidar retrievals were compared to cloud conditions derived using the ...

  6. ARM - Publications: Science Team Meeting Documents: Establishing...

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

    of Alaska ARM Climate Research Facility (NSA ACRF) are a necessity for both accurate ... of two important initiatives at the NSA site, the Broadband Heating Rate Profile ...

  7. Bench-Scale Cross Flow Filtration of

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

    ... system to the ARM North Slope of Alaska (NSA) locale for a five week Indirect and ... Facility (ACRF) North Slope of Alaska (NSA) locale provide retrievals of aerosol, ...

  8. ARM - Arctic Meetings of Interest

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

    Related Information Collaborations Meetings of Interest Data Sources ARM Data Discovery Browser NSA Data Past ARM NSA campaigns NCARUCAR National Oceanic and Atmospheric ...

  9. Atmospheric Radiation Measurement (ARM) Data from the North Slope...

    Office of Scientific and Technical Information (OSTI)

    North Slope Alaska (NSA) Site Title: Atmospheric Radiation Measurement (ARM) Data from the North Slope Alaska (NSA) Site You are accessing a document from the Department of ...

  10. Atmospheric Radiation Measurement (ARM) Data from the North Slope...

    Office of Scientific and Technical Information (OSTI)

    North Slope Alaska (NSA) Site Title: Atmospheric Radiation Measurement (ARM) Data from the North Slope Alaska (NSA) Site The Atmospheric Radiation Measurement (ARM) Program is the ...

  11. Failure and Redemption of Multifilter Rotating Shadowband Radiometer...

    Office of Scientific and Technical Information (OSTI)

    Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) and Southern Great ... Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) and Southern Great ...

  12. Determination of Large-Scale Cloud Ice Water Concentration by Combining Surface Radar and Satellite Data in Support of ARM SCM Activities

    SciTech Connect (OSTI)

    Liu, Guosheng

    2013-03-15

    -D cloud ice water contents in support of cloud modeling activities. The approach of the study is to expand a (surface) point measurement to an (satellite) area measurement. That is, the study takes the advantage of the high quality cloud measurements (particularly cloud radar and microwave radiometer measurements) at the point of the ARM sites. We use the cloud ice water characteristics derived from the point measurement to guide/constrain a satellite retrieval algorithm, then use the satellite algorithm to derive the 3-D cloud ice water distributions within an 10° (latitude) x 10° (longitude) area. During the research period, we have developed, validated and improved our cloud ice water retrievals, and have produced and archived at ARM website as a PI-product of the 3-D cloud ice water contents using combined satellite high-frequency microwave and surface radar observations for SGP March 2000 IOP and TWP-ICE 2006 IOP over 10 deg. x 10 deg. area centered at ARM SGP central facility and Darwin sites. We have also worked on validation of the 3-D ice water product by CloudSat data, synergy with visible/infrared cloud ice water retrievals for better results at low ice water conditions, and created a long-term (several years) of ice water climatology in 10 x 10 deg. area of ARM SGP and TWP sites and then compared it with GCMs.

  13. Using Radar, Lidar, and Radiometer measurements to Classify Cloud Type and Study Middle-Level Cloud Properties

    SciTech Connect (OSTI)

    Wang, Zhien

    2006-01-04

    The project is concerned with the characterization of cloud macrophysical and microphysical properties by combining radar, lidar, and radiometer measurements available from the U.S. Department of Energy's ARM Climate Research Facility (ACRF). To facilitate the production of integrated cloud product by applying different algorithms to the ARM data streams, an advanced cloud classification algorithm was developed to classified clouds into eight types at the SGP site based on ground-based active and passive measurements. Cloud type then can be used as a guidance to select an optimal retrieval algorithm for cloud microphysical property retrieval. The ultimate goal of the effort is to develop an operational cloud classification algorithm for ARM data streams. The vision 1 IDL code of the cloud classification algorithm based on the SGP ACRF site observations was delivered to the ARM cloud translator during 2004 ARM science team meeting. Another goal of the project is to study midlevel clouds, especially mixed-phase clouds, by developing new retrieval algorithms using integrated observations at the ACRF sites. Mixed-phase clouds play a particular role in the Arctic climate system. A multiple remote sensor based algorithm, which can provide ice water content and effective size profiles, liquid water path, and layer-mean effective radius of water droplet, was developed to study arctic mixed-phase clouds. The algorithm is applied to long-term ARM observations at the NSA ACRF site. Based on these retrieval results, we are studying seasonal and interannual variations of arctic mixed-phase cloud macro- and micro-physical properties.

  14. Tower Temperature and Humidity Sensors (TWR) Handbook (Technical...

    Office of Scientific and Technical Information (OSTI)

    (ARM) Climate Research Facility: a 60-meter triangular tower at the Southern Great Plains (SGP) Central Facility (CF), a 21-meter walkup scaffolding tower at the SGP Okmulgee ...

  15. ARM - Events Article

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

    Facility News SGP Hosts Two Groups for "Lunch and Launch" Visit Bookmark and Share John Schatz, SGP Deputy Site Manager (in striped shirt), answers questions from Billings...

  16. International H

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

    (NOAA) Environmental Technology Laboratory will be bringing a mini-DIAL (differential absorption lidar) to the SGP central facility for comparison with the SGP Raman...

  17. ARM - Facility News Article

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

    Jones stepped into the TWP operations manager role just after the Manus Island site on Papua New Guinea was installed in 1996. He then helped lead the subsequent TWP installations ...

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

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

    ... Jones stepped into the TWP operations manager role just after the Manus Island site on Papua New Guinea was installed in 1996. He then helped lead the subsequent TWP installations ...

  19. DOE/SC-ARM-TR-102 Sonde Adjust Value-Added Product Technical...

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

    ... Slope of Alaska * twpsondeadjustC1.c1 - Tropical Western Pacific (TWP) Manus, Papua New Guinea * twpsondeadjustC2.c1 - TWP Nauru D Troyan, December 2011, DOESC-ARM-TR-102 6 * ...

  20. ARM - Facility News Article

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

    to improve their reliability at remote sites like those at the TWP. In May, a newly redesigned TSI was installed for the first time at the TWP Manus site in Papua New Guinea. ...

  1. arm2007_poster_wu_final.ppt

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

    Convection regimes during TWP-ICE and in the GISS SCM Jingbo Wu (Columbia U.), Anthony D. Del Genio (NASAGISS), and Audrey B. Wolf (Columbia U.) 1. Introduction The TWP-ICE IOP ...

  2. Research Highlight

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

    Optical Properties of the 1997 TWP Smoke Event Submitter: Spinhirne, J., University of Arizona Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: N/A Figure 1. MPL image showing evolution of early September, 1997 smoke event at Manus, TWP. Figure 2. Selected aerosol extinction cross section profiles at the ARM TWP site during 1997 showing progression of aerosol loading. Figure 3. Cloud-cleared optical measurements at the TWP site from July 27 to

  3. ARM - New York Workshop Presentations

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

    New York Workshop Presentations Related Links TWP-ICE Home Tropical Western Pacific Home ARM Data Discovery Browse Data Post-Experiment Data Sets Weather Summary (pdf, 6M) New York Workshop Presentations Experiment Planning TWP-ICE Proposal Abstract Detailed Experiment Description Science Plan (pdf, 1M) Operations Plan (pdf, 321K) Maps Contact Info Related Links Daily Report Report Archives Press Media Coverage TWP-ICE Fact Sheet (pdf, 211K) Press Releases TWP-ICE Images ARM flickr site

  4. ARM - Education Article

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

    January 31, 2005 [Education] Education and Outreach Program Visits Schools in the Tropics Bookmark and Share A native islander is interviewed in his natural setting at Manus Island as part of the TWP kiosk development effort. In September 2004, ARM Education and Outreach staff spent 23 days at the Tropical Western Pacific (TWP) locale to develop stronger working relationships with educators and administrators at each of the TWP sites-Manus Island, Nauru Island, and Darwin, Australia. While

  5. ARM - Facility News Article

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

    15, 2004 [Facility News] Education and Outreach Program Visits Schools in the Tropics Bookmark and Share A native islander is interviewed in his natural setting at Manus Island as part of the TWP kiosk development effort. In September 2004, the ARM Climate Research Facility Education and Outreach (EO) staff spent 23 days at the Tropical Western Pacific (TWP) locale to develop stronger working relationships with educators and administrators at each of the TWP sites-Manus Island, Nauru Island, and

  6. Use of ARM observations and numerical models to determine radiative and latent heating profiles of mesoscale convective systems for general circulation models

    SciTech Connect (OSTI)

    Tao, Wei-Kuo; Houze, Robert, A., Jr.; Zeng, Xiping

    2013-03-14

    This three-year project, in cooperation with Professor Bob Houze at University of Washington, has been successfully finished as planned. Both ARM (the Atmospheric Radiation Measurement Program) data and cloud-resolving model (CRM) simulations were used to identify the water budgets of clouds observed in two international field campaigns. The research results achieved shed light on several key processes of clouds in climate change (or general circulation models), which are summarized below. 1. Revealed the effect of mineral dust on mesoscale convective systems (MCSs) Two international field campaigns near a desert and a tropical coast provided unique data to drive and evaluate CRM simulations, which are TWP-ICE (the Tropical Warm Pool International Cloud Experiment) and AMMA (the African Monsoon Multidisciplinary Analysis). Studies of the two campaign data were contrasted, revealing that much mineral dust can bring about large MCSs via ice nucleation and clouds. This result was reported as a PI presentation in the 3rd ASR Science Team meeting held in Arlington, Virginia in March 2012. A paper on the studies was published in the Journal of the Atmospheric Sciences (Zeng et al. 2013). 2. Identified the effect of convective downdrafts on ice crystal concentration Using the large-scale forcing data from TWP-ICE, ARM-SGP (the Southern Great Plains) and other field campaigns, Goddard CRM simulations were carried out in comparison with radar and satellite observations. The comparison between model and observations revealed that convective downdrafts could increase ice crystal concentration by up to three or four orders, which is a key to quantitatively represent the indirect effects of ice nuclei, a kind of aerosol, on clouds and radiation in the Tropics. This result was published in the Journal of the Atmospheric Sciences (Zeng et al. 2011) and summarized in the DOE/ASR Research Highlights Summaries (see http://www.arm.gov/science/highlights/RMjY5/view). 3. Used radar

  7. ARM - VAP Product - mmcrmode3ge200511041cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C3...

  8. ARM - VAP Product - mmcrmode4pr200511041cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C3...

  9. ARM - VAP Product - mmcrmode3ge200608161cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C2...

  10. ARM - VAP Product - mmcrmode4pr200608161cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C2...

  11. ARM - VAP Product - mmcrmode1bl200606161cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C1...

  12. ARM - VAP Product - mmcrmode4pr200606161cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C1...

  13. ARM - VAP Product - mmcrmode2ci200608161cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C2...

  14. ARM - VAP Product - mmcrmode1bl200608121cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C2...

  15. ARM - VAP Product - mmcrmode3ge200606161cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C1...

  16. ARM - VAP Product - rhbarscl1cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP X1...

  17. ARM - VAP Product - mmcrmode2ci200606161cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C1...

  18. Presentation Title, Arial Regular 29pt Sub title, Arial Regular...

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

    anvil Cloud properties IntroductionProgram goals TWP-ICE Forcing data Models Updrafts Doppler radar velocity retrievals Polarimetric radar Microphysics retrievals The Centre...

  19. ARM - VAP Product - mmcrmode2ci200511041cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C3...

  20. ARM - VAP Product - mmcrmode1bl200511041cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Tropical Western Pacific TWP C3...

  1. ARM-00-006 Site Scientific Mission

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

    ... NOTATION (Cont.) TWP Tropical Western Pacific UAV Unmanned Aerospace Vehicle (Program) ... Experiment II) follow-on activity of the UAV (Unmanned Aerospace Vehicle) Program ...

  2. DRAFT ADVICE - UNACCEPTABLE PROGRAM IMPACTS UNDER FY 97 BUDGET

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

    7, 2001 Harry Boston, Manager Department of Energy, Office of River Protection 2440 ... on the current and out year budget status of the Tank Waste Treatment Project (TWP). ...

  3. ARM - Education Article

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

    Nauru Airport. The kiosk at Nauru. Two children at the TWP kiosk dedication at Nauru sport ARM Climate Research Facility headwear. Beginning in 2003, ARM Education and Outreach...

  4. X:\\ARM_19~1\\PGS19-27.WPD

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

    meteorological variables will be set up on Manus Island as the first site of the tropical western pacific (TWP) locale of the Atmospheric Radiation Measurements (ARM) program. ...

  5. ARM - Contact Information

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

    TWP-ICE Proposal Abstract Detailed Experiment Description Science Plan (pdf, 1M) Operations Plan (pdf, 321K) Maps Contact Info Related Links Daily Report Report Archives Press ...

  6. Atmospheric Line of Site Experiment (ALOSE) Final Campaign Summary...

    Office of Scientific and Technical Information (OSTI)

    (TWP) site located in Darwin, Australia (27 September-3 October 2013). Authors: Smith, W. 1 ; Green, S. 1 ; Howard, M. 1 ; Yesalusky, M. 1 ; Modlin, N. 1 + Show ...

  7. ARM - Facility News Article

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

    In a concerted effort to upgrade the TWP sites on Darwin, Australia; Nauru Island; and Manus Island, Papua New Guinea; infrastructure staff recently completed a number of notable ...

  8. ARM - Media Coverage

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

    Media Coverage Related Links TWP-ICE Home Tropical Western Pacific Home ARM Data Discovery Browse Data Post-Experiment Data Sets Weather Summary (pdf, 6M) New York Workshop Presentations Experiment Planning TWP-ICE Proposal Abstract Detailed Experiment Description Science Plan (pdf, 1M) Operations Plan (pdf, 321K) Maps Contact Info Related Links Daily Report Report Archives Press Media Coverage TWP-ICE Fact Sheet (pdf, 211K) Press Releases TWP-ICE Images ARM flickr site <=""

  9. ARM - Press Releases

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

    Press Releases Related Links TWP-ICE Home Tropical Western Pacific Home ARM Data Discovery Browse Data Post-Experiment Data Sets Weather Summary (pdf, 6M) New York Workshop Presentations Experiment Planning TWP-ICE Proposal Abstract Detailed Experiment Description Science Plan (pdf, 1M) Operations Plan (pdf, 321K) Maps Contact Info Related Links Daily Report Report Archives Press Media Coverage TWP-ICE Fact Sheet (pdf, 211K) Press Releases TWP-ICE Images ARM flickr site <=""

  10. ARM - Related Links

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

    Related Links Related Links TWP-ICE Home Tropical Western Pacific Home ARM Data Discovery Browse Data Post-Experiment Data Sets Weather Summary (pdf, 6M) New York Workshop Presentations Experiment Planning TWP-ICE Proposal Abstract Detailed Experiment Description Science Plan (pdf, 1M) Operations Plan (pdf, 321K) Maps Contact Info Related Links Daily Report Report Archives Press Media Coverage TWP-ICE Fact Sheet (pdf, 211K) Press Releases TWP-ICE Images ARM flickr site <=""

  11. Surface Energy Balance System (SEBS) Handbook (Technical Report...

    Office of Scientific and Technical Information (OSTI)

    Data from these sites, including the retired TWP, are available in the ARM Data Archive. The SEBS consists of upwelling and downwelling solar and infrared radiometers within one ...

  12. Poster Abstract of Eighteenth ARM STM: Sort by Title

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

    ... Clouds ABSTRACT, POSTER Kollias, P., Albrecht, B., and Ghate, V. A Simulation of ... Clouds ABSTRACT, POSTER Ghate, V. and Albrecht, B. TWP Cloud Behavior Analyses - ...

  13. ARM - Information for Guest Scientists

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

    Scientists TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical...

  14. freer_arm_2007

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

    been applied to TWP-ICE data, to resize particles classified as 'hollow - correctable.' ... Using combinations of these parameters, par- ticles are classified as accepted, hollow - ...

  15. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... The soil VWC and temperature sensors used at NSA C1 are the Campbell Scientific CS650L and the sensors at NSA M1 use the Campbell Scientific CS655. The two sensors are nearly ...

  16. ARM - Publications: Science Team Meeting Documents

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

    Arctic Stratus Cloud Properties Deduced from Ground-Based Measurements at the DOE ARM NSA ... (CART) site on the North Slope of Alaska (NSA) in 1997. The ultimate goal of the ARM ...

  17. Vision Office Products

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

    The North Slope of Alaska (NSA) was chosen for the third CART site, mainly because it ... This document describes the most important science issues to be addressed at the NSA and ...

  18. Microsoft Word - liljegren-jc.doc

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

    Facility (ACRF) North Slope of Alaska (NSA) site at Barrow, Alaska, in February 2004. ... water content (bottom) for March 12-15, 2004, at the ARM ACRF NSA site at Barrow, Alaska. ...

  19. ARM - Field Campaign - AIRS Validation Soundings Phase IV and...

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

    Validation Soundings Phase IV and V-NSA ARM Data Discovery Browse Data Comments? ... Campaign : AIRS Validation Soundings Phase IV and V-NSA 2005.04.25 - 2006.04.24 Lead ...

  20. PowerPoint Presentation

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

    Barrow at the Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) site. ... The U.S. DOE ARM Program conducted its M-PACE field campaign over the NSA during the ...

  1. Microsoft Word - RHUBC_OpsPlan.doc

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

    Analysis of several years of ARM data collected at NSA suggests that the median PWV in ... The on-site PI, with input from the NSA site scientist team and other RHUBC investigators, ...

  2. ARM - Publications: Science Team Meeting Documents

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

    In August 2003, the NSA Site Scientist Team initiated a meta-data investigation on all NSA data streams. This investigation started by examining data streams for measurement name ...

  3. ARM - Publications: Science Team Meeting Documents

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

    Winter Surface Radiative Energy Exchange at NSA: Cloudy vs. Clear Sky Stramler, K.(a), Del ... surface net longwave radiation at NSA; winter cloudy-sky surface net longwave ...

  4. ARM - Facility News Article

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

    Graham visited the North Slope of Alaska (NSA) on a bi-partisan trip to examine the ... ARM sites and ARM research underway at the NSA; these were displayed along with other ...

  5. ARM - Publications: Science Team Meeting Documents

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

    Radiation Observed at SHEBA and the ARM NSA Site Morrison, H.C.(a) and Pinto, ... Budget of the Arctic Ocean (SHEBA) and ARM North Slope of Alaska (NSA) field projects. ...

  6. ARM North Slope of Alaska

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

    sites on the North Slope of Alaska (NSA), to provide data about cloud and radiative ... More Information North Slope of Alaska Website NSA Fact Sheet Visit the North Slope of ...

  7. ARM - Facility News Article

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

    side of ARM's North Slope of Alaska (NSA) site - is being established to support the ... This internet service may also be available for Atqasuk (another ARM locale at NSA) and ...

  8. ARM - Publications: Science Team Meeting Documents

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

    Applications of the Aerosonde at NSA Curry, J.A. and Holland, G.J., University of Colorado ... Possibilities for using the Aerosonde at NSA and other ARM sites will be discussed

  9. Tobin-DC

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

    Measurement (ARM) North Slope of Alaska (NSA) site in Barrow, Alaska, are useful for ... Figure 10 shows a comparison of the NSA AERI-ER (identical to the SHEBA AERI-ER) to the ...

  10. ARM - Facility News Article

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

    be difficult, even dangerous, in the arctic climates of the North Slope of Alaska (NSA). ... manufactured by Vaisala, is scheduled to be installed at the NSA site later this summer. ...

  11. turner_poster.arctic_bbhrp.ppt

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

    Rate Profiles over the ACRF NSA Site Dave Turner 1 , Matt Shupe 2 , Dan DeSlover 1 , Eli ... National Laboratory Photo by D. Turner at NSA site, Mar 2007 Introduction A multi-sensor ...

  12. Studying Altocumulus Plus Virga with Ground-based Active and...

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

    Long-term Cloud Microphysical Properties Dataset for Arctic Cloud Study Based on ARCF NSA ... meeting. *The algorithms are applying to multiple-year observations at the ARCF NSA site. ...

  13. ARM - Facility News Article

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

    Two ARM sites-Barrow and Atqasuk-at the North Slope of Alaska (NSA) provide key data about ... meteorological properties measured at the NSA have shown systematic differences between ...

  14. turner_shupe_poster.ppt

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

    Logic The Next Generation of Microbase at NSA D.D. Turner 1 , Matt Shupe 2 , Eli Mlawer 3 ... New (ST) Microbase Case study: 27 - 30 May 2004 at NSA Statistics: March - August 2004 at ...

  15. Microsoft PowerPoint - ARMSTM_2007_Westwater_et_al_02.ppt

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

    9-April 9 2004 Location: ARM NSA, Barrow, Alaska 2. RHUBC (http:science.arm.govrhubc) Period: February 22, 2007 to present Location: ARM NSA, Barrow, Alaska GOALS * Provide ...

  16. Studying Altocumulus Plus Virga with Ground-based Active and...

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

    Cloud Properties Observed at the ARCF NSA site Zhien Wang, Ming Zhao, and Min Deng ... study cloud-aerosol interactions at the NSA site. * Further analysis of ice phase cloud ...

  17. ARM - Publications: Science Team Meeting Documents

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

    Cloud and Radiative Properties Derived Over the ARM NSA Domain From AVHRR Data Heck, P.W., ... polar sites on the North Slope of Alaska (NSA) measure time series of various ...

  18. ARM - Instrument - amc

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

    Measurement (ARM) Climate Research Facility North Slope of Alaska (NSA) Barrow site, also known as NSA C1 at the ARM Data Archive, in August 2012. A second AMC system was ...

  19. ARM - Facility News Article

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

    near the ARM North Slope of Alaska (NSA) site in Barrow, to provide measurements of ... that this is mil-spec armored cable," said Mark Ivey, ARM Site Manager for the NSA locale. ...

  20. ARM - Publications: Science Team Meeting Documents

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

    International Pyrgeometer and Absolute Sky-scanning Radiometer Comparison at the NSA ARM ... conditions will be performed at beginning of March 2001 at ARM NSA site in Barrow, Alaska. ...

  1. ARM - Field Campaign - ARM Radiosondes for NPOESS/NPP Validation...

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

    - NSA Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : ARM Radiosondes for NPOESSNPP Validation - NSA ...

  2. Microsoft Word - wang_z.doc

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

    The Surface Heat Budget of the Arctic experiment and long-term North Slope of Alaska (NSA) ... an improved MWR LWP retrieval algorithm is introduced for the NSA measurements. ...

  3. ARM - Facility News Article

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

    2, 2006 Facility News New NSA Site Manager Named; Science Liaison Joins the Team Bookmark and Share Dr. Mark Ivey to be NSA Site Manager beginning October 1. As of October 1, Dr. ...

  4. ARM - Facility News Article

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

    Bookmark and Share Dr. Martin Stuefer, newest member of NSA team, and his plane. Martin ... Martin Stuefer, the newest member of the ARCF North Slope of Alaska (NSA) site operations ...

  5. ARM - Facility News Article

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

    Bookmark and Share The new ECORSEBS Tower at the NSA site in Barrow includes greenhouse ... The new ECORSEBS Tower at the NSA site in Barrow includes greenhouse gas flux ...

  6. ARM - Publications: Science Team Meeting Documents

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

    Initial Activities of the ARM NSA Site Scientist Team Richardson, S., Bahrmann, C.P., ... In August 2002 the transition of the ARM NSA Site Scientist Team to Pennsylvania State ...

  7. ARM - Education Article

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

    People view the new ARM Climate Change Kiosk at the NSA site. The ARM Education and Outreach team had a very successful trip to the North Slope of Alaska (NSA) in October. The main ...

  8. Other Locales B. D. Zak

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

    Of the remaining two locales, the NSA is preferred because it has many more synergi;tic programs in place which will be of benefit to ARM. The NSA also has the advantage of...

  9. ARM Climate Research Facility

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

    ... Long Name Units XXXbeflux1longFF. c1 XXX is sgp FF is C1 downshorthemisp ... Normal Irradiance Wm2 XXXirt25mFF.b1 XXX is sgp FF is C1 upshorthemisp Upwelling ...

  10. ARM - Facility News Article

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

    Water Vapor Network at SGP Site Goes Offline Bookmark and Share Each of the 24 solar-powered GPS stations streamed data via a wireless network to the SGP Central Facility for data ...

  11. ARM - Instrument - smos

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

    KS (ABLE) retired SGP A4 Browse Data Smileyberg, KS (ABLE) retired SGP A5 Browse Data Oxford, KS (ABLE) retired retired Originating instrument has been retired at this location...

  12. ARM - Instrument - sodar

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

    KS (ABLE) retired SGP A2 Browse Data Beaumont, KS (ABLE) retired SGP A5 Browse Data Oxford, KS (ABLE) retired ARM Mobile Facility MAO S1 Browse Data Manacapuru, Amazonas,...

  13. 2D Gridded Surface Data Value-Added Product (Technical Report...

    Office of Scientific and Technical Information (OSTI)

    High-density ARM sites deployed at the Southern Great Plains (SGP) allow us to observe the spatial patterns of variables of scientific interests. The upcoming megasite at SGP with ...

  14. Newsletter Southern Great Plains

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

    Dowell and SGP assistant site scientist Daniel Hartsock, Rusk also led the group on a walking tour. The students observed a radiosonde (weather balloon) launch by SGP upper air...

  15. ARM - Facility News Article

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

    News New Shortwave Spectroradiometer Deployed at SGP Bookmark and Share A ceiling port in the SGP Optical Trailer houses the optic element of the SWS, which connects to the...

  16. Research Highlight

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

    Five-Year Statistics of Shallow Clouds at the ACRF SGP Site Download a printable PDF ... 2008. "Temporal variability of fair-weather cumulus statistics at the ARM SGP site." ...

  17. High Spectral Resolution Infrared and Raman Lidar Observations for the ARM Program: Clear and Cloudy Sky Applications

    SciTech Connect (OSTI)

    Revercomb, Henry; Tobin, David; Knuteson, Robert; Borg, Lori; Moy, Leslie

    2009-06-17

    This grant began with the development of the Atmospheric Emitted Radiance Interferometer (AERI) for ARM. The AERI has provided highly accurate and reliable observations of downwelling spectral radiance (Knuteson et al. 2004a, 2004b) for application to radiative transfer, remote sensing of boundary layer temperature and water vapor, and cloud characterization. One of the major contributions of the ARM program has been its success in improving radiation calculation capabilities for models and remote sensing that evolved from the multi-year, clear-sky spectral radiance comparisons between AERI radiances and line-by-line calculations (Turner et al. 2004). This effort also spurred us to play a central role in improving the accuracy of water vapor measurements, again helping ARM lead the way in the community (Turner et al. 2003a, Revercomb et al. 2003). In order to add high-altitude downlooking AERI-like observations over the ARM sites, we began the development of an airborne AERI instrument that has become known as the Scanning High-resolution Interferometer Sounder (Scanning-HIS). This instrument has become an integral part of the ARM Unmanned Aerospace Vehicle (ARM-UAV) program. It provides both a cross-track mapping view of the earth and an uplooking view from the 12-15 km altitude of the Scaled Composites Proteus aircraft when flown over the ARM sites for IOPs. It has successfully participated in the first two legs of the “grand tour” of the ARM sites (SGP and NSA), resulting in a very good comparison with AIRS observations in 2002 and in an especially interesting data set from the arctic during the Mixed-Phase Cloud Experiment (M-PACE) in 2004.

  18. ARM Climate Research Facility

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

    ......... 17 2.49 SGP Area Surface Cloud and SW Radiation Grid ......... 18 2.51 Surface Spectral Albedo (SURFSPECALB) ...

  19. ARM Climate Research Facility

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

    ......... 17 2.50 SGP Area Surface Cloud and SW Radiation Grid (SFCCLDGRID) ...... 17 2.51 Shortwave Array Spectroradiometer ...

  20. ARM - Facility News Article

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

    August 15, 2008 [Facility News] New Ceilometer Evaluated at Southern Great Plains Site Bookmark and Share Dan Nelson, SGP facilities manager, inspects the new ceilometer during its evaluation period on the platform of the SGP Guest Instrument Facility between June and July 2008. Dan Nelson, SGP facilities manager, inspects the new ceilometer during its evaluation period on the platform of the SGP Guest Instrument Facility between June and July 2008. To analyze cloud properties, ARM scientists

  1. Microsoft PowerPoint - Kassianov_etal_ARM2007_presentation_v01.ppt [Compatibility Mode]

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

    Between Relationship Between Cumulus Cloud Fraction Cumulus Cloud Fraction Cumulus Cloud Fraction Cumulus Cloud Fraction and and Aerosol Optical Depth Aerosol Optical Depth: : p p p p a Five a Five- -Year Climatology at Year Climatology at th ARM SGP Sit th ARM SGP Sit the ARM SGP Site the ARM SGP Site E. Kassianov, L. Berg, C.Flynn, and S. McFarlane Pacific Northwest National Laboratoty Outline Outline Outline Outline * * Motivation & Objectives Motivation & Objectives * * Approach

  2. ARM - Education Article

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

    1, 2006 [Education] Students Tour the SGP Facility Bookmark and Share Seventh graders tour the ARM SGP site in November. On November 1, 2006, the SGP site hosted a group of 30 seventh graders from the local Deer Creek-Lamont school district. The students and their teacher, Deborah McFeeters, were on a mission to learn about the ARM Program and the exciting research taking place at the SGP site. SGP Operations Manager Dan Rusk gave a slide presentation about ARM and lead the group on a short

  3. Microsoft PowerPoint - G-Allen-TWPICE-ACTIVE-data-provision-Nov06.ppt

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

    ACTIVE / TWP-ICE Science Meeting, Nov 06 The ACTIVE Dataset: Status and Availability Grant Allen (grant.allen@man.ac.uk) SEAES, University of Manchester For: TWP-ICE/ACTIVE Science meeting, New York, Nov 06 ACTIVE / TWP-ICE Science Meeting, Nov 06 The ACTIVE database * All data is available via FTP access to: mobile4.phy.umist.ac.uk * User account requests to grant.allen@man.ac.uk * Geophysical processed data in ASCii format is in directory: /Database3/ACTIVE/PROCESSED/current/ * Users can

  4. Expansion of Facilities on the North Slope of Alaska in Time for the

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

    International Polar Year Expansion of Facilities on the North Slope of Alaska in Time for the International Polar Year Zak, Bernard Sandia National Laboratories Ivey, Mark Sandia National Laboratories Zirzow, Jeffrey Sandia National Laboratories Brower, Walter UIC Science Division ARM/NSA Ivanoff, James NSA Whiteman, Doug NSA/AAO Sassen, Kenneth University of Alaska Fairbanks Truffer-Moudra, Dana University of Alaska Fairbanks Category: Infrastructure & Outreach The International Polar

  5. ARM - VAP Product - mmcrmode3ge200404141cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  6. ARM - VAP Product - mmcrmode2ci200712011cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  7. ARM - VAP Product - mmcrmode1st200404151cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  8. ARM - VAP Product - mmcrmode3ge200712011cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  9. ARM - VAP Product - mmcrmode2ci200404141cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  10. ARM - VAP Product - mmcrmode1bl200712011cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations North Slope Alaska NSA C1 Browse...

  11. Energy Information Online | OSTI, US Dept of Energy Office of...

    Office of Scientific and Technical Information (OSTI)

    Database (EDB) and Nuclear Science Abstracts (NSA) The Department of Energy's legacy bibliographic databases, Energy Science and Technology and Nuclear Science Abstracts, are ...

  12. ARM - Publications: Science Team Meeting Documents: Determination...

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

    of this indirect effect detection is provided by downwelling longwave flux measurements from the NSA pyrgeometers, which show consistently larger fluxes in the high CN...

  13. ARM XDC Datastreams

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

    name timeoffsets (changed to timeoffset) Acronyms MOLTS Model Output Location Time Series NAC North American Continent NCEP National Centers for Environmental Prediction NSA...

  14. Manhattan Project: The Venona Intercepts

    Office of Scientific and Technical Information (OSTI)

    ... available at http:www.nsa.govpublicinfodeclassvenona, and John Earl Haynes and Harvey Klehr, Venona: Decoding Soviet Espionage in America (New Haven and London: Yale ...

  15. ARM - Instrument - noaacrn

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

    those considered scientifically relevant. Atmospheric temperature Precipitation Surface skin temperature Locations North Slope Alaska NSA X1 Browse Data External Data (satellites...

  16. ARM TR-008

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

    ... Plains Blackwell-Tonkawa Airport, Oklahoma nsaC1 North ... indicates the four digit military style Greenwich hour that ... pivot where some equipment extends upwards into the ...

  17. Arctic Shield Field Campaign Report

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

    District Seventeen, Coast Guard Air Station Kodiak, and Conoco Phillips. ... ARM staff at the NSA site applied repeatedly for the larger space, which extends over international ...

  18. ARM - Publications Article

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

    research, and scientists have an important resource in the North Slope of Alaska (NSA) facilities of the ARM Climate Research Facility. The ARM Facility is being...

  19. EEREs Workforce Development and Education Program

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

    ... builds open standards and achieves a high degree of interoperability - Endorsed by NSA 18 | Education & Workforce Development .energy.gov NTER by the Numbers * Leveraged ...

  20. Acronyms

    Energy Savers [EERE]

    ... to Contractors NODIS No Distribution NOFORN No Foreign Dissemination NP Non-Possessing NSA National Security Agency NSI National Security Information NTC National Training Center ...

  1. PowerPoint Presentation

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

    ARM-NSA products to evaluate Arctic cloud and radiative simulations in global models John ... ARM Science Team Meeting, Norfolk, VA 12 March 2008 Objectives * Use ARMNSA measurements ...

  2. ARM - Instruments

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

    Instruments Related Links RHUBC Home NSA Home ARM Data Discovery Browse Data Experiment Planning RHUBC Proposal Abstract Full Proposal (pdf, 420kb) Science Plan (pdf) Operations ...

  3. Notices ENVIRONMENTAL PROTECTION AGENCY

    Energy Savers [EERE]

    ... Ends: 1230 2009, Contact: Jennifer Shore, 703- 602-4238. EIS No. 20090368, Draft EIS, NSA, TN, Y-12 National Security Complex Project, to Support the Stockpile Stewardship ...

  4. ARM - Facility News Article

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

    (NSA) were completed. Hardware upgrades included replacing the OS2 and Solaris computers with two Windows 2000 computers. One of these computers is for the MMCR radar. It...

  5. Kai Germaschewski

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

    Principal Investigator Amitava Bhattacharjee Participating Organizations University of New Hampshire Dartmouth College Funding Agencies DOE SC DOE NSA NSF NOAA NIH Other: NASA 2. ...

  6. ARM_STM09.ppt

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

    Aerosol Campaign 1-29 Apr 2008: Same measurements at DOE ARM NSA Site + Canadian NRC In-situ Measurements * Aerosol properties * Atmospheric state * Cloud microphysics *...

  7. Southern Great Plains

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

    govSitesSouthern Great Plains SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Summer Training SGP Fact Sheet Images Information for Guest Scientists Contacts Southern Great Plains SGP Central Facility, Lamont, OK 36° 36' 18.0" N, 97° 29' 6.0" W Altitude: 320 meters

  8. ARM - Facility News Article

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

    February 28, 2006 [Facility News] Network of Infrared Thermometers Nearly Complete at SGP Bookmark and Share Red dots indicate extended facilities at SGP with the new IRTs installed; green dots indicate future installations. As reported in April 2005, a network of infrared thermometers (IRT) is being installed throughout the ARM Southern Great Plains (SGP) site for the purpose of measuring cloud base temperature and inferring cloud base height across the domain. These measurements will enhance

  9. ARM - Facility News Article

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

    Aide for Oklahoma Senator Inhofe Visits SGP Site Bookmark and Share On August 19, 2010, a legislative aide for Senator James Inhofe (R-Ok) visited the ARM Southern Great Plains (SGP) site to learn about the facility, its role in global climate research, and its contribution to the state of Oklahoma. Throughout the course of the visit, ARM representatives emphasized how the high-quality data provided by the SGP and other ARM sites help scientists identify critical atmospheric processes so that

  10. ARM - Field Campaign - Midlatitude Continental Convective Clouds Experiment

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

    (MC3E) Experiment (MC3E) Campaign Links Science Plan MC3E Website Field Campaign Report ARM Data Discovery Browse Data Related Campaigns Midlatitude Continental Convective Clouds Experiment (MC3E): Inner Domain Thermodynamic Profiling during MC3E 2011.04.22, Turner, SGP Midlatitude Continental Convective Clouds Experiment (MC3E): Multi-Frequency Profilers 2011.04.22, Williams, SGP Midlatitude Continental Convective Clouds Experiment: 2DVD Support 2011.04.22, Schwaller, SGP Midlatitude

  11. ARM - Facility News Article

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

    15, 2005 [Facility News] Aging, Overworked Computer Network at SGP Gets Overhauled Bookmark and Share This aerial map of instruments deployed at the SGP Central Facility provides an indication of the computer resources needed to manage data at the site, let alone communicate with other ARM sites. Established as the first ARM research facility in 1992, the Southern Great Plains (SGP) site in Oklahoma is the "old man on the block" when it comes to infrastructure. Though significant

  12. ARM - Facility News Article

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

    July 31, 2009 [Facility News, Publications] African Collaborators Continue Data Analyses from Niamey Bookmark and Share During a recent gathering at the University of Niamey, SGP and African collaborators pause for a quick photo. From left to right: Dr. Zewdu Segele, SGP Site Scientist Postdoc; Professor Ibrah Sanda, Professor of Physics, University of Niamey; Dr. Pete Lamb, SGP Site Scientist; Professor Ben Mohamed, project lead from the University of Niamey; Hama Hamidou, a Niamey

  13. Section 94

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

    9 Shortwave Radiometry and Analysis at the Southern Great Plains (SGP) Site L. Harrison, J. J. Michalsky and Q. Min Atmospheric Sciences Research Center State University of New York - Albany Albany, New York Here we report the results of three parallel efforts: the recal- 0.3%. Likewise, Joe Michalsky went to the SGP site with a ibration and reanalysis of pyrano-metric data from Southern recently calibrated Eppley Normal Incidence Pyrheliometer Great Plains (SGP) to improve its accuracy, use of

  14. Improved Arctic Cloud and Aerosol Research and Model Parameterizations

    SciTech Connect (OSTI)

    Kenneth Sassen

    2007-03-01

    In this report are summarized our contributions to the Atmospheric Measurement (ARM) program supported by the Department of Energy. Our involvement commenced in 1990 during the planning stages of the design of the ARM Cloud and Radiation Testbed (CART) sites. We have worked continuously (up to 2006) on our ARM research objectives, building on our earlier findings to advance our knowledge in several areas. Below we summarize our research over this period, with an emphasis on the most recent work. We have participated in several aircraft-supported deployments at the SGP and NSA sites. In addition to deploying the Polarization Diversity Lidar (PDL) system (Sassen 1994; Noel and Sassen 2005) designed and constructed under ARM funding, we have operated other sophisticated instruments W-band polarimetric Doppler radar, and midinfrared radiometer for intercalibration and student training purposes. We have worked closely with University of North Dakota scientists, twice co-directing the Citation operations through ground-to-air communications, and serving as the CART ground-based mission coordinator with NASA aircraft during the 1996 SUCCESS/IOP campaign. We have also taken a leading role in initiating case study research involving a number of ARM coinvestigators. Analyses of several case studies from these IOPs have been reported in journal articles, as we show in Table 1. The PDL has also participated in other major field projects, including FIRE II and CRYSTAL-FACE. In general, the published results of our IOP research can be divided into two categories: comprehensive cloud case study analyses to shed light on fundamental cloud processes using the unique CART IOP measurement capabilities, and the analysis of in situ data for the testing of remote sensing cloud retrieval algorithms. One of the goals of the case study approach is to provide sufficiently detailed descriptions of cloud systems from the data-rich CART environment to make them suitable for application to

  15. ARM - VAP Product - mmcrmode3ge200408121cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Southern Great Plains SGP C1 Browse...

  16. ARM - Datastreams - wacrspecmom

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

    by this product are those considered scientifically relevant. Measurement Variable Radar Doppler raw Locations Southern Great Plains SGP C1 Browse Data Central Facility,...

  17. ARM - Instrument - swacr

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

    The following measurements are those considered scientifically relevant. Radar Doppler Radar reflectivity Locations Southern Great Plains SGP C1 Browse Data Central...

  18. ARM - VAP Product - mmcrmode2ci200309091cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Southern Great Plains SGP C1 Browse...

  19. ARM - Datastreams - mmcrspectra

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

    by this product are those considered scientifically relevant. Measurement Variable Radar Doppler Spectra Locations Southern Great Plains SGP C1 Browse Data Central Facility,...

  20. ARM - VAP Product - mmcrmode2ci200408121cloth

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

    by this product are those considered scientifically relevant. Cloud base height Radar Doppler Radar reflectivity Vertical velocity Locations Southern Great Plains SGP C1 Browse...

  1. ARM - Publications: Science Team Meeting Documents

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

    Cover image Proceedings of the Twelfth Atmospheric Radiation Measurement (ARM) Science ... of Stratus Clouds at the SGP: A Radiation Based Study* Comparison of ARM AERI with ...

  2. Preliminary Analysis of Surface Radiation Measurement Data Quality...

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

    Surface Radiation Measurement Data Quality at the SGP Extended Facilities Y. Shi and C. N. ... Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Program operates ...

  3. Validation of the ARchived CERES Surface and Atmosphere Radiation...

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

    Archived CERES Surface and Atmosphere Radiation Budget at SGP T. P. Charlock National ... System (CERES) Surface and Atmosphere Radiation Budget (SARB) product (Charlock et al. ...

  4. Morcrette-JJ

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

    Assessment of the ECMWF Model Cloudiness and Surface Radiation Fields at the ARM SGP Site ... United Kingdom Abstract The cloud and radiation fields produced by the operational ...

  5. ARM - Field Campaign - ARM Enhanced Shortwave Experiment (ARESE...

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

    ... The ARM Program sponsored the ground-based measurements, ARM-UAV (Unmanned Aerospace ... ARM SGP Site Manager Tim Tooman, UAV Coordinator DSIT Contacts ARM Data and ...

  6. ARM - Publications: Science Team Meeting Documents

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

    cloud products and the ARM SGP observation for individual cirrus cloud and stratus cloud cases. At the same time, statistical comparison of optically thin cirrus clouds is also...

  7. Newsletter Southern Great Plains

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

    problems. Senator Muegge suggested informing Oklahoma Secretary of Technology Skip Porter of the situation. When Secretary Porter toured the SGP site, he saw the road concerns...

  8. ARM - Field Campaign - Lower Atmospheric Boundary Layer Experiment

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

    Related Campaigns 2013 Lower Atmospheric Boundary Layer Experiment 2013.05.28, Turner, SGP ... Lead Scientist : David Turner For data sets, see below. Abstract Boundary layer turbulence ...

  9. ARM - Field Campaign - 2013 Lower Atmospheric Boundary Layer...

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

    Lower Atmospheric Boundary Layer Experiment 2012.09.17, Turner, SGP Comments? We would ... Lead Scientist : David Turner For data sets, see below. Abstract Instruments were deployed ...

  10. ARM - Field Campaign - ARM Support for the Plains Elevated Convection...

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

    Convection at Night Experiment: Doppler Lidar Operations 2015.06.01, Turner, SGP Comments? ... Lead Scientist : David Turner For data sets, see below. Abstract The Plains Elevated ...

  11. Search for: All records | Data Explorer

    Office of Scientific and Technical Information (OSTI)

    PBL heights were derived from these merged potential temperature profiles usingmore a modified Heffter (1980) technique that was tailored to the SGP site (Della Monache et al., ...

  12. ARM - Publications: Science Team Meeting Documents: Evaluation...

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

    from the Ground-based Remote Sensing at SGP Kim, Byung-Gon Princeton University Klein, Stephen Lawrence Livermore National Laboratory Mace, Gerald University of Utah Benson, Sally...

  13. ARM - Datastreams - precnet

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

    Measurement Variable Precipitation precipamt Locations Southern Great Plains SGP A1 Browse Data Whitewater, KS (ABLE) retired retired Originating instrument has been...

  14. ARM - Instrument - precnet

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

    considered scientifically relevant. Precipitation Locations Southern Great Plains SGP A1 Browse Data Whitewater, KS (ABLE) retired retired Originating instrument has been...

  15. SCM Working Group

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

    Atmospheric Radiation Measurement A Little Background 3.5 x 3.5 degree 23 ARM Extended ... Current ARM SGP Observation Network ARM Atmospheric Radiation Measurement Issues with ...

  16. ARM - Facility News Article

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

    data from ARM sites in Barrow, Alaska; Nauru Island; Manus Island, Papua New Guinea; and Darwin, Australia; and the Southern Great Plains (SGP) site in Lamont, Oklahoma. ...

  17. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    on the preceding day, according to the judgment of the PI's and taking into consideration daily weather forecasts and the operability of complimentary ARM-SGP CF instrumentation. ...

  18. ARM - Publications: Science Team Meeting Documents

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

    additional nine stations in 2000. The entire network covers approximately 40 square kilometers roughly centered around the SGP CF. This network constitutes a single instrument to...

  19. Newsletter Southern Great Plains

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

    ocean wave spray, soot from factory smokestacks or internal combustion engines, and sulfate from volcanic activity. For many years, the SGP site has been sampling atmospheric...

  20. ARM - Publications: Science Team Meeting Documents

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

    ARM SGP domain, as a result of correlated subgrid-scale vertical velocity and thermodynamic structure, can reach 2000 Wm2 during strong convective events. This energy...