National Library of Energy BETA

Sample records for amf nsa sgp

  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. 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...

  3. 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...

  4. 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

  5. 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 Correction VAP applied * In analyses of results prior to release, an apparent problem surfaced... Typical Corrections: SGP All POSITIVE corrections Typical Corrections: TWP All POSITIVE corrections NSA Corrections Some NEGATIVE Full corrections SGP Winter Corrections All POSITIVE corrections NSA Broadband Operations *

  6. 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,

  7. 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

  8. 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 Abdullah Zulfiqar/Radford We are studying whether there is a correlation between the thickness of the sea ice and the temperature at the surface of the ice. 2016.03.05 » 2016.03.12 Craig Kenmonth/UAF Assisting Jessie Cherry 2016.03.01 »

  9. 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.

  10. 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

  11. ARM - AMF Architecture

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF Architecture The AMF1 sets up in Heselbach, Germany The AMF1...

  12. ARM - AMF2 Architecture

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF2 Architecture The core AMF2 instrumentation is designed to...

  13. ARM - AMF Contacts

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF Contacts Science AMF1 Site Scientist - Mark Miller, Rutgers...

  14. ARM - AMF Operations

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF Operations Members of the AMF1 installation team prepare the...

  15. ARM - SGP Operations

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

    Operations 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 SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Operations Routine Operations SGP central facility offices. SGP central facility offices. The overwhelming majority of the measurements with the

  16. ARM - AMF Data Plots

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

    (PDF) Posters AMF Poster, French Version We're Going to Sample the Sky in Africa News Campaign Images AMMA International News AMF Data Plots ARM Mobile Facility data plot...

  17. ARM - AMF Science Questions

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

    AzoresAMF Science Questions Azores Deployment AMF Home Graciosa Island Home Data Plots and Baseline Instruments Satellite Retrievals Experiment Planning CAP-MBL Proposal Abstract and Related Campaigns Science Questions Science Plan (PDF, 4.4M) Rob Wood Website Outreach Backgrounders English Version (PDF, 363K) Portuguese Version (PDF, 327K) AMF Posters, 2009 English Version Portuguese Version Education Flyers English Version Portuguese Version News Campaign Images AMF Science Questions Which

  18. 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 Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Contacts Site Manager - Nicki Hickmon, Argonne National Laboratory Site Operations Manager - John Schatz, SGP Site Operations Office Central Facility

  19. 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 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 driving directions

  20. AMF Deployment, Manacapuru, Brazil

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

    Manacapuru, Brazil Manacapuru Deployment AMF Home Manacapuru Home GOAMAZON Website Experiment Planning Abstract and Related Campaigns Science Plan (PDF, 1.4MB) Deployment Operations Baseline Instruments and Data Plots at the Archive Outreach News & Press GOAMAZON Blog Images Contacts Kim Nitschke, AMF Operations Scot Martin, Principal Investigator AMF Deployment, Manacapuru, Brazil This view shows the location of the Manacapuru, Brazil, ARM Mobile Facility. Main site (T3): 3° 12'

  1. AMF Deployment, Oliktok, Alaska

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

    Alaska Oliktok Deployment AMF Home Oliktok Home Deployment Operations Baseline Instruments and Data Plots at the Archive Outreach News & Press New Sites Fact Sheet (PDF, 1.6MB) Images Contacts Fred Helsel, AMF Operations Gijs de Boer, Principal Investigator AMF Deployment, Oliktok Point, Alaska This view shows the location of the Oliktok, Alaska, ARM Mobile Facility. Located at the North Slope of Alaska on the coast of the Arctic Ocean, Oliktok Point is the temporary home of the third, and

  2. ARM - AMF1 Baseline Instruments

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

    FacilitiesAMF1 Baseline Instruments AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 MAOS Data Operations AMF Fact Sheet Images Contacts AMF Deployments McMurdo Station, Antarctica, 2015-2016 Pearl Harbor, Hawaii, to San Francisco, California, 2015 Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat

  3. ARM - AMF3 Baseline Instruments

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

    FacilitiesAMF3 Baseline Instruments AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 MAOS Data Operations AMF Fact Sheet Images Contacts AMF Deployments McMurdo Station, Antarctica, 2015-2016 Pearl Harbor, Hawaii, to San Francisco, California, 2015 Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat

  4. AMF ARM Mobile FAcility

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

    at http:www.arm.govacrfsubmitproposals.stm. For more information, contact: Mark Miller Mary Jane Bartholomew AMF Site Scientist Assoc. Site Scientist (631) 344-2958 (631)...

  5. AMF Deployment, Hyytiala, Finland

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

    Finland Hyytiälä Deployment AMF Home Hyytiälä Home Experiment Planning Abstract and Related Campaigns Science Plan Deployment Operations Baseline Instruments and Data Plots at the Archive BAECC Instruments AMF2 Management and Operations Outreach News & Press BAECC Blog Backgrounder (PDF, 1.5MB) Poster (JPEG, 1.3MB) Education Flyer (English) (PDF, 1.3MB) Education Flyer (Finnish) (PDF, 1.3MB) Images Contacts Nicki Hickmon, AMF Operations Tuukka Petäjä, Principal Investigator AMF

  6. ARM - AMF2 Operations

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

    and Contacts Management and Operations Operations Overview ARM Links BCR | ECR ECO, EWO Extraview PIF, CAR, DQR & DQPR Operations Status System i.arm.gov AMF2 Deployment...

  7. ARM - AMF Data

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF Data Available Data Plots View data plots from each deployment....

  8. AMF Deployment, Shouxian, China

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

    China Shouxian Deployment AMF Home Shouxian Home Data Plots and Baseline Instruments Experiment Planning Proposal Science Plan, (PDF, 1,257K) Outreach Fact Sheets English Version...

  9. 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...

  10. 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 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 research addressing

  11. ARM - AMF Science

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF Science Locale: Anywhere in the World The purpose of an ARM...

  12. 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 Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Central Facility The ARM Climate Research Facility deploys specialized remote sensing instruments in a fixed location at the site to gather

  13. 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 Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Extended Facility For over 20 years, 23 extended facilities were distributed evenly throughout a 55,000-square-mile domain and at the corners of

  14. 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 Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Intermediate Facility For over 20 years, 3 intermediate facilities, within 6.2 miles (10 km) of the Central Facility, provided a

  15. 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...

  16. 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...

  17. AMF Deployment, Ganges Valley, India

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

    India Ganges Valley Deployment AMF Home Ganges Valley Home Data Plots and Baseline Instruments Campaign Images Experiment Planning GVAX Full Proposal Abstract and Related Campaigns Science Plan Field Campaign Report Outreach GVAX Backgrounder (PDF, 1.4MB) News Education Flyer (PDF, 2.1MB) AMF Poster, 2011 Images Contacts V. Rao Kotamarthi AMF Deployment, Ganges Valley, India GVAX will take place in the Ganges Valley region of India, gathering cloud and aerosol data. Location: 29° 21'

  18. AMF Deployment, Graciosa Island, Azores

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

    Azores Azores Deployment AMF Home Graciosa Island Home Data Plots and Baseline Instruments Satellite Retrievals Experiment Planning CAP-MBL Proposal Abstract and Related Campaigns Science Questions Science Plan (PDF, 4.4M) Rob Wood Website Outreach Backgrounders English Version (PDF, 363K) Portuguese Version (PDF, 327K) AMF Posters, 2009 English Version Portuguese Version Education Flyers English Version Portuguese Version News Campaign Images AMF Deployment, Graciosa Island, Azores Location:

  19. ARM - AMF2 Baseline Instruments

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF2 Baseline Instruments Instrument Suites View the list of...

  20. AMF Deployment, Steamboat Springs, Colorado

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

    Colorado Steamboat Deployment AMF Home Steamboat Springs Home Storm Peak Lab Data Plots and Baseline Instruments Data Sets Experiment Planning STORMVEX Proposal Abstract and...

  1. AMF Deployment, Black Forest, Germany

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

    Germany Black Forest Deployment AMF Home Black Forest Home Data Plots and Baseline Instruments CERA COPS Data University of Hohenheim COPS Website COPS Update, April 2009...

  2. 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 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 unpaved, dirt

  3. 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 SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Radiometric Calibration Facility The Radiometric Calibration Facility (RCF) provides shortwave radiometer calibrations traceable

  4. ARM - AMF2 Management and Operations

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

    Management and Operations AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 MAOS Data Operations AMF Fact Sheet Images Contacts AMF Deployments McMurdo Station, Antarctica, 2015-2016 Pearl Harbor, Hawaii, to San Francisco, California, 2015 Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat Springs,

  5. ARM - AMF2 Organization and Contact Information

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF2 Organization and Contact Information The Argonne AMF2...

  6. ARM - News : AMF Deployment, Shouxian, China

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

    ChinaNews : AMF Deployment, Shouxian, China Shouxian Deployment AMF Home Shouxian Home Data Plots and Baseline Instruments Experiment Planning Proposal Science Plan, (PDF, 1,257K)...

  7. 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...

  8. DISCLAIMER

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

    Environmental Science (CIRES) at the University of Colorado. 2.0 Timeline and Deployment History SGP: April 1996-present NSA: (NOAA BRW Observatory) 1998-present AMF: * PYE:...

  9. ARM - AOS Aerosol Properties Plots

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

    ViewersAOS Aerosol Properties Plots XDC Data Viewers Aerosol Properties Plots SGP AMF NSA (BRW) AOS Aerosol Properties Plots These plots are designed to provide a quick look at the measured aerosol properties or review current station operations. Be aware that they are raw unedited data. Do not quote and cite. Aerosol Properties Plots SGP AMF NSA (BRW)

  10. 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 SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Geographic Information By Facility Note: BF = Boundary Facility, EF = Extended Facility, and IF = Intermediate Facility Site

  11. AMF Deployment, McMurdo Station, Antarctica

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

    Antarctica McMurdo Deployment AMF Home McMurdo Home Experiment Planning Abstract and Related Campaigns Science Plan AWARE Website Deployment Operations Baseline Instruments and Data Plots at the Archive Weather & Climate Support for the AWARE Project Outreach News & Press AWARE Log of Events Backgrounder (PDF, 1.5MB) Poster (JPEG, 1.3MB) Images Contacts Paul Ortega, AMF Operations Hanna Goss, Media Contact Dan Lubin, Principal Investigator AMF Deployment, McMurdo Station, Antarctica

  12. AMF Deployment, Niamey, Niger, West Africa

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

    West Africa Niamey Deployment AMF Home Niamey Home Data Plots and Baseline Instruments Rainfall Record (PDF) Publications List, (PDF) Experiment Planning RADAGAST Proposal Outreach Fact Sheets RADAGAST (PDF) Annual Climate Cycle in Niger, Africa (PDF) Posters AMF Poster, French Version We're Going to Sample the Sky in Africa! News Campaign Images AMMA International News AMF Deployment, Niamey, Niger, West Africa In 2006, the ARM Mobile Facility is collecting cloud and atmospheric property

  13. AMF Deployment, Point Reyes National Seashore, California

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

    California Point Reyes Deployment AMF Home Point Reyes Home Data Plots and Baseline Instruments Experiment Planning MASRAD Proposal Abstract and Related Campaigns Outreach Posters...

  14. 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

  15. ARM - AMF Deployment, Los Angeles, California, to Honolulu, Hawaii

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

    Blog Images Contacts Nicki Hickmon, AMF Operations Lynne Roeder, Media Contact Ernie Lewis, Principal Investigator AMF Deployment, Los Angeles, California, to Honolulu, Hawaii...

  16. ARM/NSA Vehicle Use Policy

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

    Operating Procedures for Scaffold Use October 2007 Atmospheric Radiation Measurement Climate Research Facility/ North Slope of Alaska/Adjacent Arctic Ocean (ACRF/NSA/AAO) Operating Procedures for The Use of Scaffolds at ACRF/NSA/AAO Meteorological Towers Introduction: An aluminum scaffold structure is used at ARM Climate Research Facility/North Slope of Alaska/Adjacent Arctic Ocean (ACRF/NSA/AAO) Sites to access instruments mounted on the meteorological tower as shown in Figure 1 below. The

  17. 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

  18. 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

  19. AMF Deployment, Pearl Harbor, Hawaii, to San Francisco, California

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

    California HI to CA Deployment AMF Home Hawaii to California Home Deployment Operations Baseline Instruments Experiment Planning ACAPEX Full Proposal Abstract and Related Campaigns Science Plan Backgrounder (PDF) Outreach News and Press Images Contacts L. Ruby Leung, Principal Investigator Nicki Hickmon, AMF Operations Paul Ortega, AMF Operations Beat Schmid, AAF Technical Director AMF Deployment, Pearl Harbor, Hawaii, to San Francisco, California This view shows the location of the second ARM

  20. 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 1-888-ARM-DATA. Send Campaign : SGP '97 (Hydrology) IOP 1997.06.18 - 1997.07.18 Lead Scientist : Richard Cederwall Abstract The main objective of this investigation was to establish that the retrieval algorithms for surface soil moisture developed at higher spatial resolution using truck- and aircraft-based sensors can be extended

  1. 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

  2. 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

  3. 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 for Assessing Radiosonde Measurement Accuracy L.M. Miloshevich National Center for Atmospheric Research Boulder, Colorado B.M. Lesht and M. Ritche Argonne National Laboratory Argonne, Illinois Introduction Several recent ARM investigations have been directed toward characterizing and improving the accuracy of ARM radiosonde water vapor measurements. Tobin et al. (2002) showed that calculating the downwelling

  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. 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...

  6. Soundings from SGP, June 2014 Sonde Comparison Study

    SciTech Connect (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

  7. 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...

  8. ARM/NSA Vehicle Use Policy

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

    6 Tip Tower Lowering Procedure November 2006 Atmospheric Radiation Measurement Climate Research Facility/ North Slope of Alaska/Adjacent Arctic Ocean NSA Tip Tower Lowering Procedure Procedure Summary: The tip tower is hinged approximately 6 feet above the ground. A set of weights permanently positioned on the lower portion of the tower are used to counterbalance the weight of the tower as it is lowered. To assist in tower lowering, a nylon line, fastened to the mid-section of the tower, is used

  9. 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 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 written to determine the hatch

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

    Broader source: Energy.gov [DOE]

    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

  11. Observed and Simulated Cirrus Cloud Properties at the SGP CART...

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

    Program Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) site. Three-minute mean retrievals are available at 8-minute intervals for isolated cirrus (i.e., no...

  12. 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...

  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. 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

  15. ARM Carbon Cycle Gases Flasks at SGP Site

    SciTech Connect (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.

  16. 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

  17. Microsoft Word - AMF2 Instruments for BAECC.docx

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

    AMF2 I nstruments f or B AECC Instrument Mentor Instrument Name Manufacturer Measurement ASSISTII ( like an A eri) Connor F lynn ASSISTII LR---Tech, Inc. Temperature a nd w ater v apor p rofiles CSPHOT Laurie G regory Cimel Sunphotometer CIMEL Electronique Solar i rradiance and sky radiance IRT Vic M orris Infrared Thermometer Heimann Equivalent b lack b ody b rightness t emps MWR---2C Maria C adeddu Microwave Radiometer Radiometrics Column H 20 v apor a nd l iquid MWR---3C Maria C adeddu

  18. Microsoft Word - 20130423 AMF2_MAGIC_Safety_Appendix_for_Web.docx

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

    Native Energy and Technology, Inc. ADDENDUM - Atmospheric Radiation Measurement Program Second Mobile Facility (AMF2) Operational Support for MAGIC - HORIZON SPIRIT Date: April 30, 2013 Native Energy and Technology, Inc. 1.0 GENERAL ADMINISTRATION 1.1 Scope The purpose of this Appendix is to provide all AMF2 personnel and visitors with important health and safety information, procedures, and requirements particular to the second ARM Mobile Facility (AMF2) operations on Horizon Spirit in support

  19. Continuous Intercomparison of Radiation Codes (CIRC)

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

    6 SGP 31700 SGP 5400 SGP 71900 SGP 92500 NSA 5304 PYE 7605 LW CIRC GSFC SFC CAM SFC GSFC TOA CAM TOA model error(%) -10 -5 0 5 10 SGP 31700 SGP 5400 SGP 71900...

  20. 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

  1. Deployment of a New Shortwave Spectroradiometer (SWS) at the SGP

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

    Deployment of a New Shortwave Spectroradiometer (SWS) at the SGP Pommier, John NASA Ames Research Center Pilewskie, Peter University of Colorado Gore, Warren NASA Ames Research Center Category: Instruments A new Shortwave Spectroradiometer (SWS) will be deployed at the ARM Southern Great Plains Central Facility in early 2006. The SWS is a moderate resolution sensor which will measure the zenith spectral radiance with 1.4 field-of-view. The SWS is sensitive over the wavelength range from 350 -

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

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

    Direct Aerosol Forcing in the Infrared at the SGP Site? D. D. Turner and C. N. Long Pacific Northwest National Laboratory Richland, Washington Introduction Low level haze is often observed during the night and early morning hours in many locations. This haze is typically formed during quiescent conditions by radiative cooling of the surface, which lowers the ambient temperature and consequently increases the near-surface relative humidity (RH). Many aerosols start to deliquesce around 75%

  3. ARM Aerosol Working Group Meeting

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

    Report ARM STM 2008 Norfolk, VA Connor Flynn for B Schmid and AWG Members AWG Instruments * Raman Lidar - SGP * Micropulse Lidars - all sites * Aerosol Sampling - SGP, NSA, AMF - scattering, absorption, number, size distribution, hygroscopicity, CCN, composition (major ions). * In situ Aerosol Profile (Cessna) - scattering, absorption, number, hygroscopicity, * Radiometers: - MFRSR, NIMFR, RSS, Cimel, AERI, SWS AWG-related Field Campaigns * Recent Past: - MASRAD (Marine Stratus Radiation,

  4. 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

  5. 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.

  6. 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.

  7. 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.

  8. 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.

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

    SciTech Connect (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

    SciTech Connect (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 - 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

  12. ARM SGP and BN AERI Instrument Diagnostic Comparison and Preliminary Assessment

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

    ARM SGP and BN AERI Instrument Diagnostic Comparison and Preliminary Assessment D. Yuan, C. Golanics, M. Howard, and G. Williams Bechtel Nevada Remote Sensing Laboratory Las Vegas, Nevada Abstract A continuous collection for diagnostic instrumental comparison was conducted at the Southern Great Plains (SGP) Lamont site from June 11 to the 13, 2003 using the Atmospheric Emitted Radiance Interferometer (AERI) at the site and the AERI owned by the U.S. Department of Energy (DOE), National Nuclear

  13. Atmospheric Radiation Measurement (ARM) Data from Oliktok Point, Alaska (an AMF3 Deployment)

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

    Located at the North Slope of Alaska on the coast of the Arctic Ocean, Oliktok Point is extremely isolated, accessible only by plane. From this remote spot researchers now have access to important data about Arctic climate processes at the intersection of land and sea ice. As of October 2013, Oliktok Point is the temporary home of ARMs third and newest ARM Mobile Facility, or AMF3. The AMF3 is gathering data using about two dozen instruments that obtain continuous measurements of clouds, aerosols, precipitation, energy, and other meteorological variables. Site operators will also fly manned and unmanned aircraft over sea ice, drop instrument probes and send up tethered balloons. The combination of atmospheric observations with measurements from both the ground and over the Arctic Ocean will give researchers a better sense of why the Arctic sea ice has been fluctuating in fairly dramatic fashion over recent years. AMF3 will be stationed at Oliktok Point.

  14. ARM - Field Campaign - AIRS Validation Soundings Phase IV and V-NSA

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

    govCampaignsAIRS Validation Soundings Phase IV and V-NSA 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-NSA 2005.04.25 - 2006.04.24 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

  15. ARM - Field Campaign - ARM Radiosondes for NPOESS/NPP Validation - NSA

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

    govCampaignsARM Radiosondes for NPOESS/NPP Validation - 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 NPOESS/NPP Validation - NSA 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

  16. ARM - Evaluation Product - NSA-Barrow AmeriFlux and Methane VAP

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

    ProductsNSA-Barrow AmeriFlux and Methane VAP Documentation Use the Data File Inventory tool to view data availability at the file level. Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : NSA-Barrow AmeriFlux and Methane VAP [ ARM research - evaluation data product ] This data set is a value-added product (VAP) derived from the raw datastreams of the Eddy Correlation Flux Measurement System (ECOR), Surface Energy Balance System

  17. 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

  18. 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

  19. 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

  20. 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

  1. Microsoft PowerPoint - 080306_stm_amf.ppt [Kompatibilitätsmodus]

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

    Convection Initiation and Clouds During COPS Volker Wulfmeyer 1 , Andreas Behrendt 1 , Susanne Crewell 2 , Hans-Stefan Bauer 1 , and Dave Turner 3 1: University of Hohenheim, Stuttgart, Germany; 2: University of Cologne, Germany; 3: University of Wisconsin - Madison, USA 1) COPS and AMF science goals The Convective and Orographically-induced Precipitation Study (COPS) is an international field experiment, which was endorsed as Research and Development Project (RDP) of the World Weather Research

  2. Microsoft Word - AMF2 Environmental Health and Safety Manual April 2013.docx

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

    HEALTH AND SAFETY MANUAL FOR ATMOSPHERIC RADIATION MEASUREMENT PROGRAM AMF2 REV. A NATIVE ENERGY & TECHNOLOGY, INC Prepared for: U.S. Department of Energy Argonne National Laboratory Argonne, IL 60439 Contract No. 2-BB47-P-00097-00 Prepared by: Native Energy and Technology, Inc. 110 Broadway, Suite 690 San Antonio, Texas 78205 April 29, 2013 Native Energy and Technology, Inc. Native Energy and Technology, Inc. ENVIRONMENTAL HEALTH AND SAFETY MANUALFORATMOSPHERIC RADIATION MEASUREMENT PROGRAM

  3. Microsoft Word - AMF2_BAECC_Safety_Appendix_For_Web.doc

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

    Page 1 o f 1 5 Safety Appendix Atmospheric Radiation Measurement Program Second Mobile Facility (AMF2) Operational Support for Biogenic Aerosols-Effects on Clouds and Climate (BAECC) Hyytiälä, Finland Contractor: Native Energy and Technology, Inc. Project Manager: Diana Davis Phone & Alternate: W: 210-231-6060 Site Manager: Nicki Hickmon Phone & Alternate: W 630-252-7662 Technical Operations Manager: Michael Ritsche Phone & Alternate: W 630-252-1554 Lead Technician: Patrick Dowell

  4. ARM - Data Quality Program

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

    Quality Program DQ Resources Data Quality Assessment and Control Report (PDF, 747KB) Data Quality Office Data Quality Problem Reporting (DQPR) Contact Us Submit Data Quality Findings Randy Peppler, Data Quality Manager Ken Kehoe, Data Quality Specialist Justin Monroe, Data Quality Specialist Adam Theisen, Data Quality Specialist Sean Moore, Data Quality Consultant Instrument and Site Contacts Instrument Mentors AAF Contacts AMF Contacts NSA Site Contacts SGP Site Contacts TWP Site Contacts Data

  5. ARM - Instrument Location Table

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

    govInstrumentsLocation Table Instruments Location Table Contacts Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument Locations Site abbreviations explained in the key. Instrument Name Abbreviation ENA NSA SGP AMF C1 C1 EF BF CF EF IF Aerosol Chemical Speciation Monitor ACSM Atmospheric Emitted Radiance Interferometer AERI Aethalometer AETH Ameriflux Measurement Component AMC Aerosol Observing System AOS Meteorological Measurements

  6. 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.

  7. 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)

  8. The Effect of Precipitation on Variability of Low Stratiform Clouds Over ARM SGP Site

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

    Precipitation on Variability of Low Stratiform Clouds Over ARM SGP Site Z. N. Kogan, D. B. Mechem, and Y. L. Kogan Cooperative Institute for Mesoscale Metorological Studies University of Oklahoma Norman, Oklahoma Introduction Continental low stratiform clouds cover the sky about 23% of the time during the fall, winter, and spring months and play a significant role in the Earth' radiation budget. Information about cloud structure and variability is crucial in determining areal averages of cloud

  9. Determination of Ice Water Path Over the ARM SGP Using Combined Surface and Satellite Datasets

    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 Datasets J. Huang, M. M. Khaiyer, and P. W. Heck Analytical Services & Materials, Inc. Hampton, Virginia P. Minnis and B. Lin Atmospheric Sciences National Aeronautics and Space Administration Langley Research Center Hampton, Virginia T.-F. Fan Science Applications International Corporation Hampton, Virginia Introduction Global information of cloud ice water path (IWP) is urgently needed for testing of

  10. 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.

  11. 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

  12. 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

  13. 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

  14. Measuring the Raindrop Size Distribution, ARM's Efforts at Darwin and SGP

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

    Measuring the Raindrop Size Distribution, ARM's Efforts at Darwin and SGP Bartholomew, Mary Jane Brookhaven National Laboratory Category: Instruments ARM has purchased two impact disdrometers for indefinite deployment. One is currently installed at the Tropical Western Pacific (TWP) Darwin facility and the other will be deployed at the central facility of the Southern Great Plains Site this spring. The disdrometers make measurements of raindrop diameter in 20 size bins over the range of 0.3 to

  15. 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

  16. Derivation of Seasonal Cloud Properties at ARM-NSA from Multispectral MODIS Data

    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. Spangenberg Analytical Services and Materials, Inc. Hampton, Virginia P. Minnis National Aeronautics and Space Administration Langley Research Center Hampton, Virginia T. Uttal National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado Q. Z. Trepte and S. S.-Mack Science Applications International Corporation Hampton, Virginia Introduction Improving climate model

  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. 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.

  19. 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.

  20. 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.

  1. 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

  2. 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

  3. Atmospheric Radiation Measurement (ARM) Data from Niamey, Niger for the Radiative Atmospheric Divergence using AMF, GERB and AMMA Stations (RADAGAST)

    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. The ARM Mobile Facility (AMF) operates at non-permanent sites selected by the ARM Program. Sometimes these sites can become permanent ARM sites, as was the case with Graciosa Island in the Azores. It is now known as the Eastern North Atlantic permanent site. In January 2006 the AMF deployed to Niamey, Niger, West Africa, at the Niger Meteorological Office at Niamey International Airport. This deployment was timed to coincide with the field phases and Special Observing Periods of the African Monsoon Multidisciplinary Analysis (AMMA). The ARM Program participated in this international effort as a field campaign called "Radiative Divergence using AMF, GERB and AMMA Stations (RADAGAST).The primary purpose of the Niger deployment was to combine an extended series of measurements from the AMF with those from the Geostationary Earth Radiation Budget (GERB) Instrument on the Meteosat operational geostationary satellite in order to provide the first well-sampled, direct estimates of the divergence of solar and thermal radiation across the atmosphere. A large collection of data plots based on data streams from specific instruments used at Niamey are available via a link from ARM's Niamey, Niger site information page. Other data can be found at the related websites mentioned above and in the ARM Archive. Users will be requested to create a password, but the plots and data files are free for viewing and downloading. The ARM Archive physically resides at the Oak Ridge National Laboratory.

  4. Surface Di-directional Reflectance Properties Over the ARM SGP Area from Satellite Multi-Platform Observations

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

    Bi-Directional Reflectance Properties Over the ARM SGP Area from Satellite Multi-Platform Observations Y. Luo, A. P. Trishchenko, and R. Latifovic Canada Centre for Remote Sensing Natural Resources Canada Ottawa, Ontario, Canada Z. Li Earth System Science Interdisciplinary Center University of Maryland College Park, Maryland Introduction Surface albedo is an important parameter in atmospheric radiation research. Good knowledge of surface bi-directional reflectance distribution function (BRDF) is

  5. 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

  6. New Visible to Broadband Shortwave Conversions for Deriving Albedos from GOES-8 Over the ARM-SGP

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

    New Visible to Broadband Shortwave Conversions for Deriving Albedos from GOES-8 Over the ARM-SGP V. Chakrapani, 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

  7. Diurnal Cycle of Convection at the ARM SGP Site: Role of Large-Scale Forcing, Surface Fluxes, and Convective Inhibition

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

    Diurnal Cycle of Convection at the ARM SGP Site: Role of Large-Scale Forcing, Surface Fluxes, and Convective Inhibition G. J. Zhang Center for Atmospheric Sciences Scripps Institution of Oceanography La Jolla, California Introduction Atmospheric convection undergoes strong diurnal variation over both land and oceans (Gray and Jacobson 1977; Dai 2001; Nesbitt and Zipser 2003). Because of the nature of the diurnal variation of solar radiation, the phasing of convection with solar radiation has a

  8. ER2 Instrumentation and Measurements for CLASIC (Cloud Land Surface Interaction Campaign) June-2007 SGP {Author-Jimmy Voyles}

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

    ER2 Desired Measurements for CLASIC June 2007 SGP May 31, 2007 1 MEASUREMENT SOURCE DESIRED MEASUREMENTS AND PRODUCTS INSTRUMENT SYSTEMS Cloud Radar System (CRS), W-Band (95 GHz) 1) Vertical profiles of calibrated radar reflectivity 2) Vertical profiles of Doppler velocity 3) Vertical profiles of estimated IWC 4) Vertical profiles of linear depolarization ratio 5) (ASCII files and quick look plots for all of the above quantities) Resolution: 5 sec resolution? Cloud Physics Lidar (CPL) (1064,

  9. Month-Long 2D Cloud-Resolving Model Simulation and Resultant Statistics of Cloud Systems Over the ARM SGP

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

    Month-Long 2D Cloud-Resolving Model Simulation and Resultant Statistics of Cloud Systems Over the ARM SGP X. Wu Department of Geological and Atmospheric Sciences Iowa State University Ames, Iowa X.-Z. Liang Illinois State Water Survey University of Illinois Urbana-Champaign, Illinois Introduction The cloud-resolving model (CRM) has recently emerged as a useful tool to develop improved representations of convections, clouds, and cloud-radiation interactions in general circulation models (GCMs).

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

    SciTech Connect (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 - 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 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 to 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 By Keyword Apply Submit Campaign Data Steps to Send Campaign Data to ARM Data Archive Field

  12. 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 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 to 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 By Keyword Apply Submit Campaign Data Steps to Send Campaign Data to ARM Data Archive

  13. 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 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 to 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 By Keyword Apply Submit Campaign Data Steps to Send Campaign Data to ARM Data Archive Campaign Data : All Available

  14. 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.

  15. Atmospheric Radiation Measurement (ARM) Data from Los Angeles, California, to Honolulu, Hawaii for the Marine ARM GPCI Investigation of Clouds (MAGIC) Field Campaign (an AMF2 Deployment)

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

    From October 2012 through September 2013, the second ARM Mobile Facility (AMF2) was deployed on the container ship Spirit, operated by Horizon Lines, for the Marine ARM GPCI* Investigation of Clouds (MAGIC) field campaign. During approximately 20 round trips between Los Angeles, California, and Honolulu, Hawaii, AMF2 obtained continuous on-board measurements of cloud and precipitation, aerosols, and atmospheric radiation; surface meteorological and oceanographic variables; and atmospheric profiles from weather balloons launched every six hours. During two two-week intensive observational periods in January and July 2013, additional instruments were deployed and balloon soundings were be increased to every three hours. These additional data provided a more detailed characterization of the state of the atmosphere and its daily cycle during two distinctly different seasons. The primary objective of MAGIC was to improve the representation of the stratocumulus-to-cumulus transition in climate models. AMF2 data documented the small-scale physical processes associated with turbulence, convection, and radiation in a variety of marine cloud types.

  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. 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 experiment relied heavily on our experiences of the 1999 experiment. Particular attention was paid to issues of radiometric calibration and radiosonde intercomparisons. Our theoretical and experimental work also supplements efforts by industry (F. Solheim, Private Communication) to develop sub-millimeter radiometers for ARM deployment. In addition to quantitative improvement of water vapor measurements at cold temperature, the impact of adding millimeter-wave window channels to improve the sensitivity to arctic clouds was studied. We also deployed an Infrared Cloud Imager (ICI) during this experiment, both for measuring continuous day-night statistics of the study of cloud coverage and identifying conditions suitable for tipcal analysis. This system provided the first capability of determining spatial cloud statistics continuously in both day and night at the NSA site and has been used to demonstrate that biases exist in inferring cloud statistics from either zenith-pointing active sensors (lidars or radars) or sky imagers that rely on scattered sunlight in daytime and star maps at night [6].

  18. Cloud Property Retrieval Products for Graciosa Island, Azores

    DOE Data Explorer [Office of Scientific and Technical Information (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.

  19. 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.

  20. 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 regions.

  1. Millimeter-Wavelength Forward-Model Comparisons Based on Ground-Based Radiometric Data Taken During the 1999 NSA/AO Radiometric Experiment

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

    Millimeter-Wavelength Forward-Model Comparisons Based on Ground-Based Radiometric Data Taken During the 1999 NSA/AAO Radiometric Experiment E. R. Westwater and M. A. Klein Cooperative Institute for Research in Environmental Sciences University of Colorado National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado P. E. Racette National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland D. Cimini University of L'Aquila

  2. 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

  3. Measurement and Modeling of Vertically Resolved Aerosol Optical Properties and Radiative Fluxes Over the ARM SGP Site During the May 2003 Aerosol IOP

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

    Measurement and Modeling of Vertically Resolved Aerosol Optical Properties and Radiative Fluxes Over the ARM SGP Site During the May 2003 Aerosol IOP B. Schmid and J. Redemann Bay Area Environmental Research Institute National Aeronautics and Space Administration Ames Research Center Moffett Field, California W. P. Arnott Desert Research Institute Reno, Nevada A. Bucholtz and J. Reid Naval Research Laboratory Monterey, California P. Colarco Earth System Science Interdisciplinary Center

  4. 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.

  5. 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...

  6. ARM - Data Announcements Article

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

    sites at the Southern Great Plains (SGP), North Slope of Alaska (NSA), and Tropical Western Pacific (TWP). The current ACRED data set contains measurements of: Cloud liquid...

  7. ARM - Facility News Article

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

    27, 2012 [Facility News] Old Meets New: Comparison of Aerosol Observing Systems Underway Bookmark and Share In just a few days, AOS scientists from Brookhaven, AMF2 operations personnel, and SGP site technicians unpacked and installed the AMF2 AOS (foreground). On February 14, it began collecting data next to the SGP system (background). Not your typical Valentine's Day treat, but still pretty sweet. In just a few days, AOS scientists from Brookhaven, AMF2 operations personnel, and SGP site

  8. 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

  9. 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.

  10. 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.

  11. 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...

  12. NSA Atqasuk Facility

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

    Slope of Alaska site, was installed the summer of 1999 off of a road near the Atqasuk Airport and operated through 2010. Located approximately 70 miles south of Barrow, Atqasuk is...

  13. ARM - Visiting the NSA

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

    Teriyaki House 907.852.2276 Barrow Oriental American Arctic Pizza 907.852.4222 Barrow Italian American UIC NARL Cafeteria Barrow Breakfast, lunch, and dinner The only place to eat...

  14. ARM XDC Datastreams

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

    Weather Service (NWS) atmospheric soundings for sites within the SGP area (Norman, OK, Topeka, KS, and Dodge City, KS), the NSA (Barrow, AK), and historical data for the TWP...

  15. knuteson-99.PDF

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

    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...

  16. 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...

  17. 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), Sandia National Laboratories (a) Thirteenth Atmospheric Radiation Measurement (ARM) Science...

  18. 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 ____.

  19. ARM - Site Instruments

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

    govSitesNorth Slope of AlaskaNSA Barrow FacilityInstruments 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 Instruments : Central Facility, Barrow AK Active Retired Active instruments are currently deployed at fixed or mobile facilities or are available through the ARM Aerial Facility. AERI Atmospheric

  20. 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 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 individual instrument uptime. Thus, the average percentage of data in the Archive represents the average percentage of the time (24 hours per day, 92 days for this quarter) the instruments were operating this quarter. Summary. 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, 2010, for the fixed sites. Because the AMFs operate episodically, the AMF statistics are reported separately and not included in the aggregate average with the fixed sites. This first quarter comprises a total of 2,208 possible hours for the fixed sites and the AMF1 and 1,464 possible hours for the AMF2. The average of the fixed sites exceeded our goal this quarter. The AMF1 has essentially completed its mission and is shutting down to pack up for its next deployment to India. Although all the raw data from the operational instruments are in the Archive for the AMF2, only the processed data are tabulated. Approximately half of the AMF2 instruments have data that was fully processed, resulting in the 46% of all possible data made available to users through the Archive for this first quarter. Typically, raw data is not made available to users unless specifically requested.

  1. AWGagenda_033009.xls

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

    30, 1:00-3:00 PM Time Speaker Title 1:00 Jefferson The AOS system at SGP, BRW, and AMF China 1:15 Hallar The AMF2 deployment at Storm Peak Laboratory for StormVEx 1:30 Kassianov...

  2. 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 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 an account on the local site data system. The eight research computers are located at the Barrow and Atqasuk sites; the SGP central facility; the TWP Manus, Nauru, and Darwin sites; the DMF at PNNL; and the AMF, currently in Germany. In addition, the ACRF serves as a data repository for a long-term Arctic atmospheric observatory in Eureka, Canada (80 degrees 05 minutes N, 86 degrees 43 minutes W) as part of the multiagency Study of Environmental Arctic Change (SEARCH) Program. NOAA began providing instruments for the site in 2005, and currently cloud radar data are available. The intent of the site is to monitor the important components of the Arctic atmosphere, including clouds, aerosols, atmospheric radiation, and local-scale atmospheric dynamics. Due to the similarity of ACRF NSA data streams, and the important synergy that can be formed between a network of Arctic atmospheric observations, much of the SEARCH observatory data are archived in the ARM archive. Instruments will be added to the site over time. For more information, please visit http://www.db.arm.gov/data. The designation for the archived Eureka data is YEU and is now included in the ACRF user metrics. This quarterly report provides the cumulative numbers of visitors and user accounts by site for the period January 1, 2007 - December 31, 2007. Table 2 shows the summary of cumulative users for the period January 1, 2007 - December 31, 2007. For the first quarter of FY 2008, the overall number of users was up significantly from the last reporting period. For the fourth consecutive reporting period, a record high number of Archive users was recorded. In addition, the number of visitors and visitor days set a new record this reporting period particularly due to the large number of field campaign activities in conjunction with the AMF deployment in Germany. It is interesting to note this quarter that 22% (a slight decrease from last quarter) of the Archive users are ARM Science funded principal investigators and 35% (the same as last quarter) of all other facility users are either ARM Science-funded principal investigators or ACRF infrastructure personnel. For reporting purposes, the three ACRF sites and the AMF operate 24 hours per day, 7 days per week, and 52 weeks per year. Time is reported in days instead of hours. If any lost work time is incurred by any employee, it is counted as a workday loss. Table 3 reports the consecutive days since the last recordable or reportable injury or incident causing damage to property, equipment, or vehicle for the period October 1 - December 31, 2007. There were no incidents this reporting period.

  3. 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 research accounts are located at the Barrow and Atqasuk sites; the SGP central facility; the TWP Manus, Nauru, and Darwin sites; and the DMF at PNNL. In addition, the ACRF serves as a data repository for a long-term Arctic atmospheric observatory in Eureka, Canada (80 degrees 05 minutes N, 86 degrees 43 minutes W) as part of the multiagency Study of Environmental Arctic Change (SEARCH) Program. NOAA began providing instruments for the site in 2005, and currently cloud radar data are available. The intent of the site is to monitor the important components of the Arctic atmosphere, including clouds, aerosols, atmospheric radiation, and local-scale atmospheric dynamics. Because of the similarity of ACRF NSA data streams and the important synergy that can be formed between a network of Arctic atmospheric observations, much of the SEARCH observatory data are archived in the ARM archive. Instruments will be added to the site over time. For more information, please visit http://www.db.arm.gov/data. The designation for the archived Eureka data is YEU and is now included in the ACRF user metrics. This quarterly report provides the cumulative numbers of visitors and user accounts by site for the period October 1, 2007 - September 30, 2008. Table 2 shows the summary of cumulative users for the period October 1, 2007 - September 30, 2008. For the fourth quarter of FY 2008, the overall number of users is down substantially (about 30%) from last quarter. Most of this decrease resulted from a reduction in the ACRF Infrastructure users (e.g., site visits, research accounts, on-site device accounts, etc.) associated with the AMF China deployment. While users had easy access to the previous AMF deployment in Germany that resulted in all-time high user statistics, physical and remote access to on-site accounts are extremely limited for the AMF deployment in China. Furthermore, AMF data have not yet been released from China to the Data Management Facility for processing, which affects Archive user statistics. However, Archive users are only down about 10% from last quarter. Another reason for the apparent reduction in Archive users is that data from the Indirect and Semi-Direct Aerosol Campaign (ISDAC), a major field campaign conducted on the North Slope of Alaska, are not yet available to users. For reporting purposes, the three ACRF sites and the AMF operate 24 hours per day, 7 days per week, and 52 weeks per year. Time is reported in days instead of hours. If any lost work time is incurred by any employee, it is counted as a workday loss. Table 3 reports the consecutive days since the last recordable or reportable injury or incident causing damage to property, equipment, or vehicle for the period July 1 - September 30, 2008. There were no incidents this reporting period.

  4. 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.

  5. SGP CART Site Affected by Ice Storm

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

    the Gulf of Mexico. A cold, shallow air mass already over Oklahoma and Kansas set up a temperature inversion in the atmosphere, with warmer air temperatures aloft than at ground...

  6. ARM - Field Campaign - NSA Scanning Radar IOP

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

    scanning radar observations for a variety of sampling modes assess the real-time signal processing of the 3-cm wave precipitation scanning radar by collecting IQ time...

  7. ARM - Field Campaign - NSA Snow IOP

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

    precipitation in the Arctic remains a challenge (e.g. Goodison et al. 1998, Benning and Yang 2005). Wind, drifting snow, and the accumulation of snow on and behind obstacles all...

  8. 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 and Atqasuk sites; the SGP central facility; the TWP Manus, Nauru, and Darwin sites; and the DMF at PNNL. In addition, the ACRF serves as a data repository for a long-term Arctic atmospheric observatory in Eureka, Canada (80 degrees 05 minutes N, 86 degrees 43 minutes W) as part of the multiagency Study of Environmental Arctic Change (SEARCH) Program. NOAA began providing instruments for the site in 2005, and currently cloud radar data are available. The intent of the site is to monitor the important components of the Arctic atmosphere, including clouds, aerosols, atmospheric radiation, and local-scale atmospheric dynamics. Because of the similarity of ACRF NSA data streams and the important synergy that can be formed between a network of Arctic atmospheric observations, much of the SEARCH observatory data are archived in the ARM archive. Instruments will be added to the site over time. For more information, please visit http://www.db.arm.gov/data. The designation for the archived Eureka data is YEU and is now included in the ACRF user metrics. This quarterly report provides the cumulative numbers of visitors and user accounts by site for the period April 1, 2007 - March 31, 2008. Table 2 shows the summary of cumulative users for the period April 1, 2007 - March 31, 2007. For the second quarter of FY 2008, the overall number of users was nearly as high as the last reporting period, in which a new record high for number of users was established. This quarter, a new record high was established for the number of user days, particularly due to the large number of field campaign activities in conjunction with the AMF deployment in Germany, as well as major field campaigns at the NSA and SGP sites. This quarter, 37% of the Archive users are ARM science-funded principal investigators and 23% of all other facility users are either ARM science-funded principal investigators or ACRF infrastructure personnel. For reporting purposes, the three ACRF sites and the AMF operate 24 hours per day, 7 days per week, and 52 weeks per year. Time is reported in days instead of hours. If any lost work time is incurred by any employee, it is counted as a workday loss. Table 3 reports the consecutive days since the last recordable or reportable injury or incident causing damage to property, equipment, or vehicle for the period January 1 - March 31, 2008. There were no incidents this reporting period.

  9. 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 individual instrument uptime. Thus, the average percentage of data in the Archive represents the average percentage of the time (24 hours per day, 92 days for this quarter) that the instruments were operating this quarter. 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, 2010, for the fixed sites. Because the AMF operates episodically, the AMF statistics are reported separately and not included in the aggregate average with the fixed sites. This fourth quarter comprises a total of 2208 possible hours for the fixed and mobile sites. The average of the fixed sites 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 historically had a Central Facility, 23 extended facilities, 4 boundary facilities, and 3 intermediate facilities. Beginning in the second quarter of FY2010, the SGP began a transition to a smaller footprint (150 km x 150 km) by rearranging the original instrumentation and new instrumentation made available through the American Recovery and Reinvestment Act of 2009 (ARRA). The Central Facility and 4 extended facilities will remain, but there will be up to 12 new surface characterization facilities, 4 radar facilities, and 3 profiler facilities sited in the smaller domain. This new configuration will provide observations at scales more appropriate to current and future climate models. The transition to the smaller footprint is ongoing through this quarter. The TWP locale has the Manus, Nauru, and Darwin sites. These sites will also have expanded measurement capabilities with the addition of new instrumentation made available through ARRA funds. It is anticipated that the new instrumentation at all the fixed sites will be in place by the end of calendar year 2011. AMF1 continues its 20-month deployment in Graciosa Island, the Azores, Portugal, that began on May 1, 2009. The AMF will also have additional observational capabilities by the end of 2011. The second ARM Mobile Facility (AMF2) was deployed this quarter to Steamboat Springs, Colorado, in support of the Storm Peak Lab Cloud Property Validation Experiment (STORMVEX). The first field deployment of the second ARM Mobile Facility will be used to validate ARM-developed algorithms that convert the remote sensing measurements to cloud properties for liquid and mixed phase clouds. Although AMF2 is being set up this quarter, the official start date of the field campaign is not until November 1, 2010. This quarterly report provides the cumulative numbers of scientific user accounts by site for the period October 1, 2009-September 30, 2010.

  10. 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.

  11. ARM - Site Instruments

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

    AlaskaInstruments 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 Instruments : North Slope Alaska Active Retired Active instruments are currently deployed at fixed or mobile facilities or are available through the ARM Aerial Facility. AERI Atmospheric Emitted Radiance Interferometer Radiometric Browse Plots

  12. ARM - Firearm Training and Authorization List

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

    AlaskaFirearm Training and Authorization List 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 Firearm Training and Authorization List As of November 5, 2007 Name Affiliation Firearms Safety Training (FST 100) Firearms Safety Training Refresher (FST 100R) Standard First Aid Training (MED 102) Heartsaver CPR

  13. ARM - Information for Guest Scientists

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

    AlaskaInformation for Guest Scientists 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 Information for Guest Scientists Welcome to the North Slope of Alaska locale, the third measurement site established by the U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) Climate Research Facility. ARM

  14. ARM - Facility News Article

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

    May 15, 2008 [Facility News] Cloud Radars on the Screen at Southern Great Plains Site Bookmark and Share With the flip of a switch, a mysterious cirrus dilemma turned from serious to solved recently, as the millimeter wavelength cloud radar (MMCR) passed inspection at the ARM Southern Great Plains (SGP) site in February. In addition, concerns about data from the ARM Mobile Facility (AMF)'s W-band ARM Cloud Radar (WACR) were alleviated through an intercomparison with the SGP WACR in March. Both

  15. North Slope of Alaska

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

    govSitesNorth Slope of Alaska 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 North Slope of Alaska Barrow: 71° 19' 23.73" N, 156° 36' 56.70" W Atqasuk: 70° 28' 19.11" N, 157° 24' 28.99" W The North Slope of Alaska (NSA) site is providing data about cloud and radiative processes at

  16. 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 individual instrument uptime. Thus, the average percentage of data in the Archive represents the average percentage of the time (24 hours per day, 92 days for this quarter) the instruments were operating 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 locale has historically had a central facility, 23 extended facilities, 4 boundary facilities, and 3 intermediate facilities. Beginning this quarter, the SGP began a transition to a smaller footprint (150 km x 150 km) by rearranging the original and new instrumentation made available through the American Recovery and Reinvestment Act (ARRA). The central facility and 4 extended facilities will remain, but there will be up to 16 surface new characterization facilities, 4 radar facilities, and 3 profiler facilities sited in the smaller domain. This new configuration will provide observations at scales more appropriate to current and future climate models. The TWP locale has the Manus, Nauru, and Darwin sites. These sites will also have expanded measurement capabilities with the addition of new instrumentation made available through ARRA funds. It is anticipated that the new instrumentation at all the fixed sites will be in place within the next 12 months. The AMF continues its 20-month deployment in Graciosa Island, Azores, Portugal, that started May 1, 2009. The AMF will also have additional observational capabilities within the next 12 months. Users can participate in field experiments at the sites and mobile facility, or they can participate remotely. Therefore, a variety of mechanisms are provided to users to access site information. Users who have immediate (real-time) needs for data access can request a research account on the local site data systems. This access is particularly useful to users for quick decisions in executing time-dependent activities associated with field campaigns at the fixed sites and mobile facility locations. The eight computers for the research accounts are located at the Barrow and Atqasuk sites; the SGP central facility; the TWP Manus, Nauru, and Darwin sites; the AMF; and the DMF at PNNL. However, users are warned that the data provided at the time of collection have not been fully screened for quality and therefore are not considered to be official ACRF data. Hence, these accounts are considered to be part of the facility activities associated with field campaign activities, and users are tracked. In addition, users who visit sites can connect their computer or instrument to an ACRF site data system network, which requires an on-site device account. Remote (off-site) users can also have remote access to any ACRF instrument or computer system at any ACRF site, which requires an off-site device account. These accounts are also managed and tracked.

  17. 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).

  18. 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 availability is directly related to individual instrument uptime. Thus, the average percentage of data in the Archive represents the average percentage of the time (24 hours per day, 92 days for this quarter) the instruments were operating this quarter. 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, 2009, for the fixed sites. Because the AMF operates episodically, the AMF statistics are reported separately and not included in the aggregate average with the fixed sites. The fourth quarter comprises a total of 2,208 hours for the fixed and mobile sites. The average of the fixed sites well exceeded our goal this quarter. The AMF data statistic requires explanation. Since the AMF radar data ingest software is being modified, the data are being stored in the DMF for data processing. Hence, the data are not at the Archive; they are anticipated to become available by the next report.

  19. ARM - Field Campaign - RAdiative Divergence using AMF, GERB and...

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

    could not be obtained. A fundamental problem with all airborne experiments is the limited spatial and temporal sampling of the variability of the radiative fluxes, because of the...

  20. 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 directly related to individual instrument uptime. Thus, the average percentage of data in the Archive represents the average percentage of the time (24 hours per day, 92 days for this quarter) the instruments were operating this quarter. 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, 2008, for the fixed sites. The AMF has been deployed to China, but the data have not yet been released. The first quarter comprises a total of 2,208 hours. The average exceeded their goal this quarter.

  1. 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 provided through the ACRF Archive can request an account on the local site data system. The eight research computers are located at the Barrow and Atqasuk sites; the SGP Central Facility; the TWP Manus, Nauru, and Darwin sites; the DMF at PNNL; and the AMF in Niger. This report provides the cumulative numbers of visitors and user accounts by site for the period January 1, 2006 - December 31, 2006. The U.S. Department of Energy requires national user facilities to report facility use by total visitor days-broken down by institution type, gender, race, citizenship, visitor role, visit purpose, and facility-for actual visitors and for active user research computer accounts. During this reporting period, the ACRF Archive did not collect data on user characteristics in this way. Work is under way to collect and report these data. Table 2 shows the summary of cumulative users for the period January 1, 2006 - December 31, 2006. For the first quarter of FY 2007, the overall number of users is up from the last reporting period. The historical data show that there is an apparent relationship between the total number of users and the 'size' of field campaigns, called Intensive Operation Periods (IOPs): larger IOPs draw more of the site facility resources, which are reflected by the number of site visits and site visit days, research accounts, and device accounts. These types of users typically collect and analyze data in near-real time for a site-specific IOP that is in progress. However, the Archive accounts represent persistent (year-to-year) ACRF data users that often mine from the entire collection of ACRF data, which mostly includes routine data from the fixed and mobile sites, as well as cumulative IOP data sets. Archive data users continue to show a steady growth, which is independent of the size of IOPs. For this quarter, the number of Archive data user accounts was 961, the highest since record-keeping began. For reporting purposes, the three ACRF sites and the AMF operate 24 hours per day, 7 days per week, and 52 weeks per year. Although the AMF is not officially collecting data this quarter, personnel are regularly involved with teardown, packing, hipping, unpacking, setup, and maintenance activities, so they are included in the safety statistics. Time is reported in days instead of hours. If any lost work time is incurred by any employee, it is counted as a workday loss. Table 3 reports the consecutive days since the last recordable or reportable injury or incident causing damage to property, equipment, or vehicle for the period October 1 - December 31, 2006. There were no recordable or lost workdays or incidents for the first quarter of FY 2007.

  2. 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 availability is directly related to individual instrument uptime. Thus, the average percentage of data in the Archive represents the average percentage of the time (24 hours per day, 91 days for this quarter) the instruments were operating this quarter. Table 1 shows the accumulated maximum operation time (planned uptime), actual hours of operation, and variance (unplanned downtime) for April 1 - June 30, 2009, for the fixed sites. Because the AMF operates episodically, the AMF statistics are reported separately and are not included in the aggregate average with the fixed sites. The AMF statistics for this reporting period were not available at the time of this report. The third quarter comprises a total of 2,184 hours for the fixed sites. The average well exceeded our goal this quarter.

  3. 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 represents the average percent of the time (24 hours per day, 91 days for this quarter) the instruments were operating this quarter. Table 1 shows the accumulated maximum operation time (planned uptime), the actual hours of operation, and the variance (unplanned downtime) for the period April 1 through June 30, 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 third quarter comprises a total of 2,184 hours. For all fixed sites (especially the TWP locale) and the AMF, 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 third quarter of fiscal year (FY) 2006.

  4. An Improved Cloud Classification Algorithm Based on the SGP CART...

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

    in the world. The millimeter wave cloud radar (MMCR) provides radar reflectivity and mean Doppler velocity profiles for most of clouds in the troposphere. Raman lidar provide not...

  5. 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...

  6. New Atmospheric Profiling Instrument Added to SGP CART Suite

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

    to those required by computer models, over the years ARM has deployed several additional ground-based remote-sensing instruments to collect temperature and water vapor data....

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

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

    Interaction Campaign (CLASIC): Science and Implementation Plan June 2007 Mark A. Miller, Principal Investigator and The CLASIC Steering Committee: Roni Avissar, Larry Berg,...

  8. sgp_stratus_poster_v1.0.ppt

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

    Structure and Persistence of Post-frontal Stratus in Numerical Models D. B. Mechem 1 and Y. L. Kogan 2 1 Department of Geography, University of Kansas, 2 CIMMS, The University of Oklahoma Mid-latitude synoptic systems are frequently accompanied by broad areas of low-altitude cloudiness located behind the cold front. Field and Wood (J. Clim. 2007) show that these clouds constitute a significant climatological signal. How different are postfrontal continental stratus from marine stratocumulus?

  9. New Eddy Correlation System for ARM SGP Site

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

    makes flux computations, prepares the data, and provides File Transfer Protocol (FTP) service for data transfer to the site communications computer. In a typical...

  10. 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...

  11. Investigation of SGP Atmospheric Moisture Budget for CLASIC ?...

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

    Budget for CLASIC - Recycling Study Contributors Peter Lamb, Diane Portis, Daniel Hartsock Background * Motivation: to provide larger-scale background for the interpretation of...

  12. 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:

  13. Surface Albedo at ARM SGP from Helicopter Observations

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

    Albedo at the Atmospheric Radiation Measurement Southern Great Plains Site from Helicopter ... Radiant Energy System) ARM (Atmospheric Radiation Measurement) Radiation Experiment (CARE) ...

  14. ARM/NSA ES&H Policy Statement

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

    ES&H Policy Statement November 2006 Atmospheric Radiation Measurement Climate Research Facility North Slope of AlaskaAdjacent Arctic Ocean (ACRFNSAAAO) ES&H Policy Statement ...

  15. Microsoft PowerPoint - nsa_shippingforminstructions.ppt

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

    Shipping Form Instructions * How to get there * Login * New entry/time saving alternative * Submitting Entry * Searching for records Jeff Zirzow, SNLA, 11-2-07 To get to shipping form http://agvik.gi.alaska.edu/fmi/iwp/res/iwp_auth.html New form or look for info on the site: Click guest account and press enter on your keyboard or click the Login button Editing an existing record (change data or add receive information) requires a login with username and password. At this point in time, we will

  16. Tamás Várnai

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

    Statistics of simulated 2-D solar radiative effects over three ARM sites Tamás Várnai 1 and Jerry Y. Harrington 2 1 UMBC JCET and NASA GSFC, 2 Penn State University Project overview Dataset and flux results Nadir reflectance results (relevant to satellite remote sensing) Current dataset 1 year at NSA, SGP, TWP Microbase: cloud profiles (LWC, IWC, r e liq , r e ice ) Mergesonde: wind aloft (time diff. distance) Cloud classification at SGP Simulated 1-D & 2-D fluxes and nadir reflectances at

  17. 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 the Archive represents the average percent of the time (24 hours per day, 91 days for this quarter) the instruments were operating this quarter. Table 1 shows the accumulated maximum operation time (planned uptime), the actual hours of operation, and the variance (unplanned downtime) for the period April 1 through June 30, 2007, for the fixed sites only. The AMF has been deployed to Germany and is operational this quarter. The third quarter comprises a total of 2,184 hours. Although the average exceeded our goal this quarter, there were cash flow issues resulting from Continuing Resolution early in the period that did not allow for timely instrument repairs that kept our statistics lower than past quarters at all sites. The low NSA numbers resulted from missing MFRSR data this spring that appears to be recoverable but not available at the Archive at the time of this report.

  18. 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.

  19. 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.

  20. 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 measurements collected by the National Weather Service. A data visualization of the 1-second atmospheric measurements collected by the National Weather Service. The ARM External Data Center (XDC) now provides atmospheric soundings-vertical measurements of the atmospheric column-in 1-second resolutions collected by the National

  1. ARM - Facility News Article

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

    New Data Stream Available from Millimeter Wave Cloud Radar Bookmark and Share Inside the instrument shelter, the MMCR data system collects radar spectral data and processes these into reflectivity, vertical velocities, and spectral width. As a result of upgrades to the Millimeter Wave Cloud Radar (MMCR) processors (see http://www.arm.gov/acrf/updates051504.stm#nsammcr) at the ARM Climate Research Facility Southern Great Plains (SGP) and North Slope of Alaska (NSA) locales, two MMCR data

  2. 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).

  3. Radiometer Calibration Trends

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

    Radiometer Calibration Trends S. M. Wilcox, T. L. Stoffel, and D. R. Myers National Renewable Energy Laboratory Golden, Colorado Abstract Calibrations of Atmospheric Radiation Measurement (ARM) broadband radiometers occur on an annual schedule, made necessary by an expected drift of instrument sensitivity and the possibility of other physical or environmental factors affecting sensitivity. The Southern Great Plains (SGP), Tropical Western Pacific (TWP), and North Slope of Alaska (NSA) field

  4. 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

  5. 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 Technology (a), University of Utah (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting In conjunction with the National Center for Environmental Prediction (NCEP), the University of Utah has been archiving (daily) column data from the NCEP Medium Range Forecast (MRF) model for various sites over the

  6. ARM - Publications: Science Team Meeting Documents

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

    Improved Methods for Broadband Outdoor Radiometer Calibration (BORCAL) Wilcox, S.M., Andreas, A.M., Reda, I., and Myers, D.R., National Renewable Energy Laboratory Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The ARM Program deploys approximately 100 radiometers to measure broadband solar radiation at stations in the North Slope of Alaska (NSA), Southern Great Plains (SGP), and Tropical Western Pacific (TWP) Cloud and Radiation Testbed (CART) sites. Two calibration events

  7. 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

  8. ARM - Publications: Science Team Meeting Documents

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

    Understanding the Effects of Uncertainties in Ice Processes, Entrainment and Updraft Velocities on the Relationship Between Cloud Optical Depth and Liquid Water Path at the NSA and SGP Sites Chen, Y.(a), Penner, J.E.(a), and Dong, X.(b), University of Michigan (a), University of North Dakota (b) The relationship between the cloud optical depth (tc) and the cloud liquid water path (LWP) inferred from surface observations of shortwave radiative fluxes and measured LWP shows significant

  9. ARM - Instrument - avhrr

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

    govInstrumentsavhrr Documentation AVHRR : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Advanced Very High Resolution Radiometer (AVHRR) Instrument Categories Satellite Observations General Overview Measurements from the Advanced Very High Resolution Radiometer (AVHRR) on the NOAA polar orbiting satellites taken over the NSA, SHB, SGP, and TWP sites are available for distribution to

  10. 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

  11. Microsoft Word - lesht.doc

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

    Comparison of ECMWF Model Analyses with the Observed Upper-Air Temperature and Relative Humidity Climatology at the ARM NSA, SGP, and TWP Climate Research Facility Sites B. M. Lesht and J. C. Lijlegren Argonne National Laboratory Argonne, Illinois L. M. Miloshevich National Center for Atmospheric Research Boulder, Colorado Introduction Analyses of output from the European Centre for Medium-range Weather Forecasting (ECMWF 1994) model often are used for evaluating both observations (Ovarlez and

  12. MS_08_15.pdf

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

    and Changes to the Merged Sounding VAP David Troyan and Mike Jensen, BNL Jim Mather and Sally McFarlane, PNNL Eli Mlawer and Jennifer Delamere, AER, Inc. Mark Miller, Rutger University Dave Turner, University of Wisconsin Jay Mace, University of Utah Merged Sounding Data Availability SGP: NSA: TWP Manus: TWP Nauru: TWP Darwin: 2000 - 2005 2004 - 2007 2006 2004 - 2006 2002 - 2006 Two versions of Merged Sounding exist. The original version is continuing to be run for all permanent sites; the

  13. 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 the Archive represents the average percent of the time (24 hours per day, 91 days for this quarter) the instruments were operating this quarter

  14. 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 quarter.

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

    SciTech Connect (OSTI)

    DL Sisterson

    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 ? 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 1,876.80 hours (0.85 ? 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 directly related to individual instrument uptime. Thus, the average percentage of data in the Archive represents the average percentage of the time (24 hours per day, 92 days for this quarter) the instruments were operating this quarter.

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

    SciTech Connect (OSTI)

    DL Sisterson

    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 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 quarter.

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

    SciTech Connect (OSTI)

    DL Sisterson

    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 Archive represents the average percent of the time (24 hours per day, 90 days for this quarter) the instruments were operating this quarter.

  18. 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 is directly related to individual instrument uptime. Thus, the average percentage of data in the Archive represents the average percentage of the time (24 hours per day, 90 days for this quarter) the instruments were operating this quarter. Summary. 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, 2009, for the fixed sites. The AMF has completed its mission in China but not all of the data can be released to the public at the time of this report. The second quarter comprises a total of 2,160 hours. The average exceeded our goal this quarter.

  19. Coupling Between Oceanic Upwelling and Cloud-aerosol Properties at the AMF Point Reyes Site

    SciTech Connect (OSTI)

    Dunn, M.; Jensen, M.; Miller, M.; Kollias, P.; Bartholomew, M. J.; Turner, D.; Andrews, E.; Jefferson, A.; Daum, P.

    2008-03-10

    Cloud microphysical properties measured at the ARM Mobile Facility site located on the northern coast of California near Point Reyes, during the 2005 Marine Stratus Radiation, Aerosol and Drizzle experiment, were analyzed to determine their relationship to the coastal sea surface temperature (SST) which was characterized using measurements acquired from a National Oceanic and Atmospheric Administration offshore buoy. An increase in SST resulting from a relaxation of upwelling, occurring in the eastern Pacific Ocean off the coast of California in summer is observed to strongly correlate with nearby ground measured cloud microphysical properties and cloud condensation nuclei (CCN) concentrations. Correlations between these atmospheric and oceanic features provide insight into the interplay between the ocean and cloud radiative properties. We present evidence of this robust correlation and examine the factors controlling these features. The marine boundary layer is in direct contact with the sea surface and is strongly influenced by SST. Moisture and vertical motion are crucial ingredients for cloud development and so we examine the role of SST in providing these key components to the atmosphere. Although upwelling of cold subsurface waters is conventionally thought to increase aerosols in the region, thus increasing clouds, here we observed a relaxation of upwelling associated with changes in the structure of marine stratus clouds. As upwelling relaxes, the SST get warmer, thick clouds with high liquid water paths are observed and persist for a few days. This cycle is repeated throughout the summer upwelling season. A concomitant cyclic increase and decrease of CCN concentration is also observed. Forcing mechanisms and large-scale atmospheric features are discussed. Marine stratocumulus clouds are a critical component of the earth's radiation budget and this site provides an excellent opportunity to study the influence of SST on these clouds.

  20. 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.

  1. 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.

  2. 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

  3. 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

  4. 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.

  5. 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...

  6. Preliminary Analysis of ARM SGP Area Sky Cover and Downwelling SW Irradiance

    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, attribute and variable types and names are considered part of a DOD. A change in any part of the DOD is considered a version change. Outcomes: ACRF enforces greater consistency in data Downstream users benefit (DQ, VAPs, scientists) Identify inconsistencies across datastreams Datastream development is more efficient

  7. 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...

  8. ARM - Instrument - mwacr

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

    govInstrumentsmwacr Documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Marine W-Band (95 GHz) ARM Cloud Radar (MWACR) Instrument Categories Cloud Properties This instrument started as the zenith pointing WACR at SGP then was converted to the scanning SWACR and deployed with AMF1. For the MAGIC campaign, MWACR was put on a stabilized platform, but only in zenith pointing mode for now. Later it

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

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

    10-20% 20-30% 30-40% 40-50% 50-60% 60-70% 70-80% 80-90% 90-100% Figure 4. Monthly cloud statistics. (March data limited to the last two weeks) Acknowledgment The ICI system was...

  10. 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)

    begins from the improvement of cloud discrimination from snowice surfaces, retrieval of ground albedo, temperature, to the improvement of cloud retrievals. A flow chart of the...

  11. 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.

  12. 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 ...

  13. Slide 1

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

    clouds level clouds CLOWD CLOWD - - BBHRP Study Periods BBHRP Study Periods 1. Point Reyes (AMF) 1. Point Reyes (AMF) * * Overcast Overcast 2. COPS (AMF) 2. COPS (AMF) * *...

  14. 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.

  15. 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.

  16. Effective Radius of Cloud Droplets Derived from Ground-based Remote Sensing at the ARM SGP site

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

    Efficacy of Aerosol - Cloud Interactions under Varying Meteorological Conditions Byung-Gon Kim, @ Mark Miller, # Stephen Schwartz, $ Yangang Liu, $ Qilong Min % Kangnung National University, @ Rutgers University # Brookhaven National Laboratory, $ State Univ. of NY at Albany % (Courtesy Magritte) Cloud dynamical processes such as entrainment mixing may be the primary modulators of cloud optical properties in certain situations. Entrainment of dry air alters the cloud drop size distribution by

  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. 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.

  19. 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...

  20. 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...

  1. 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...

  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 - siros1dutt

    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...

  4. 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...

  5. 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...

  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. 1

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

    Tyro KS No Instrument failed and was pulled from service in June 2001 SGP EF-11 Byron OK Yes ----- SGP EF-12 Pawhuska OK Yes ----- SGP EF-13 Lamont OK Yes ----- SGP EF-15...

  8. 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...

  9. 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...

  10. 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...

  11. 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...

  12. 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 cloud with a low optical depth are prevalent; the radiative closure studies using Microbase demonstrated significant residuals. As an alternative to Microbase at NSA, the Shupe-Turner cloud property retrieval algorithm, aimed at improving the partitioning of cloud phase and incorporating more constrained, conditional microphysics retrievals, also has been evaluated using the BBHRP data set.

  13. 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 ultimate goal is to improve our cloud classification algorithm into a VAP.

  14. Contribution to the development of DOE ARM Climate Modeling Best Estimate Data (CMBE) products: Satellite data over the ARM permanent and AMF sites: Final Report

    SciTech Connect (OSTI)

    Xie, B; Dong, X; Xie, S

    2012-05-18

    To support the LLNL ARM infrastructure team Climate Modeling Best Estimate (CMBE) data development, the University of North Dakota (UND)'s group will provide the LLNL team the NASA CERES and ISCCP satellite retrieved cloud and radiative properties for the periods when they are available over the ARM permanent research sites. The current available datasets, to date, are as follows: the CERES/TERRA during 200003-200812; the CERES/AQUA during 200207-200712; and the ISCCP during 199601-200806. The detailed parameters list below: (1) CERES Shortwave radiative fluxes (net and downwelling); (2) CERES Longwave radiative fluxes (upwelling) - (items 1 & 2 include both all-sky and clear-sky fluxes); (3) CERES Layered clouds (total, high, middle, and low); (4) CERES Cloud thickness; (5) CERES Effective cloud height; (6) CERES cloud microphysical/optical properties; (7) ISCCP optical depth cloud top pressure matrix; (8) ISCCP derived cloud types (r.g., cirrus, stratus, etc.); and (9) ISCCP infrared derived cloud top pressures. (10) The UND group shall apply necessary quality checks to the original CERES and ISCCP data to remove suspicious data points. The temporal resolution for CERES data should be all available satellite overpasses over the ARM sites; for ISCCP data, it should be 3-hourly. The spatial resolution is the closest satellite field of view observations to the ARM surface sites. All the provided satellite data should be in a format that is consistent with the current ARM CMBE dataset so that the satellite data can be easily merged into the CMBE dataset.

  15. ARM XDC Datastreams

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

    KS (IDSG11) Phased-out on 2010-11-10 SGP-E9: Ashton, KS (IDSG04) SGP-E11: Byron, OK (IDSG10) SGP-E12: Pawhuska, OK (IDSG08) SGP-E13: ARM CF Lamont, OK (IDSG01) SGP-E15:...

  16. 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.

  17. Comparison of Cloud Fraction and Liquid Water Path between ECMWF simulations and ARM long-term Observations at the NSA Site

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

    poster, seasonal and annual variations of cloudiness and liquid water path (LWP) from European Center for Medium-Range Weather Forecasts (ECMWF) model were compared with surface measurement from the ARM Climate Research Facility (ARCF) North Slope of Alaska ( N S A ) s i t e b e t we e n J a n u a r y 1 9 9 9 and December 2004. ● Model simulated large scale features match well with observations. ● There are significant differences in cloud vertical and temporal distributions and in the

  18. 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...

  19. 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,...

  20. 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...

  1. 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...

  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...

  3. ARM - VAP Product - 30baebbr

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

    Hillsboro, KS (Extended) retired SGP E4 Browse Data Plevna, KS (Extended) retired SGP E7 Browse Data Elk Falls, KS (Extended) retired SGP E8 Browse Data Coldwater, KS (Extended)...

  4. ARM - Other Aircraft Campaigns

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

    Cloud Radar Campaign 12 days Stephen Sekelsky SGP 1998-08-03 Past BDRF Campaign 25 days Don Cahoon SGP 2002-05-13 Past IHOP Campaign 1 months Dave Parsons SGP 2005-05-21 Past...

  5. 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...

  6. 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...

  7. ARM - Data Announcements Article

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

    E14, E16, E21, and E24 (September 2003-September 2010) ARM Mobile Facility (AMF) Point Reyes, California, deployment (2005) AMF Niamey, Niger, deployment (2006) AMF Black Forest,...

  8. ARM - Site Instruments

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

    FacilitiesInstruments AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 MAOS Data Operations AMF Fact Sheet Images Contacts AMF Deployments McMurdo Station, Antarctica, 2015-2016 Pearl Harbor, Hawaii, to San Francisco, California, 2015 Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat Springs,

  9. ARM - Mobile Aerosol Observing System

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

    FacilitiesMobile Aerosol Observing System AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 MAOS Data Operations AMF Fact Sheet Images Contacts AMF Deployments McMurdo Station, Antarctica, 2015-2016 Pearl Harbor, Hawaii, to San Francisco, California, 2015 Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011

  10. Southern Great Plains

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

    (AMF), an array of instruments in a pair of movable shelters. The portable AMF will complement the more permanent ARM Climate Research Facility (ACRF) sites at the Southern...

  11. ARM - Data Announcements Article

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

    Pacific (TWP) sites are now available. Data are also available for the Black Forest, Germany deployment of the ARM Mobile Facility (AMF). Additional AMF deployments will be...

  12. No Slide Title

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

    BOUNDARY LAYER CLOUD MACRO - - SCALE STRUCTURE SCALE STRUCTURE DURING THE AMF POINT REYES DEPLOYMENT DURING THE AMF POINT REYES DEPLOYMENT Michael Jensen 1 , Andrew M....

  13. PowerPoint Presentation

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

    Oceanic Upwelling and Cloud - - Aerosol Properties Aerosol Properties at the AMF Point Reyes Site at the AMF Point Reyes Site Maureen Dunn , Mike Jensen , Pavlos Kollias , Mark...

  14. ARM - Facility News Article

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

    Facility (AMF), an identical CCN instrument was deployed in 2005 during the AMF field campaign at Point Reyes, California, and is currently operating at Niamey, Niger, West Africa...

  15. No Slide Title

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

    PROPERTIES FROM AMF MARINE BOUNDARY LAYER CLOUD PROPERTIES FROM AMF POINT REYES SATELLITE OBSERVATIONS POINT REYES SATELLITE OBSERVATIONS Michael Jensen 1 , Andrew M. Vogelmann 1 ,...

  16. Slide 1

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

    China LIDAR Summary Connor Flynn, PNNL MPLs deployed for AMF campaign Summary of data dispostion MPL polarization technique, implications Visual survey with AMF China supported by...

  17. ARM - Feature Stories and Releases Article

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

    Amon Haruta, AMF1 project coordinator from Los Alamos National Laboratory. Another Goodbye Vaughan Ivens, AMF1 site technician, retired at the conclusion of the deployment at...

  18. INDIA

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

    AMF to measure radiative, cloud, convection, and aerosol characteristics over mainland India for a 10-month campaign. Most of the AMF instrumentation will be operated from the...

  19. Validation of a radar doppler spectra simulator using measurements from the ARM cloud radars

    SciTech Connect (OSTI)

    Remillard, J.; Luke, E.; Kollias, P.

    2010-03-15

    The use of forward models as an alternative approach to compare models with observations contains advantages and challenges. Radar Doppler spectra simulators are not new; their application in high- resolution models with bin microphysics schemes could help to compare model output with the Doppler spectra recorded from the vertically pointing cloud radars at the ARM Climate Research Facility sites. The input parameters to a Doppler spectra simulator are both microphysical (e.g., particle size, shape, phase, and number concentration) and dynamical (e.g., resolved wind components and sub-grid turbulent kinetic energy). Libraries for spherical and non-spherical particles are then used to compute the backscattering cross-section and fall velocities, while the turbulence is parameterized as a Gaussian function with a prescribed width. The Signal-to-Noise Ratio (SNR) is used to determine the amount of noise added throughout the spectrum, and the spectral smoothing due to spectral averages is included to reproduce the averaging realized by cloud radars on successive returns. Thus, realistic Doppler spectra are obtained, and several parameters that relate to the morphological characteristics of the synthetically generated spectra are computed. Here, the results are compared to the new ARM microARSCL data products in an attempt to validate the simulator. Drizzling data obtained at the SGP site by the MMCR and the AMF site at Azores using the WACR are used to ensure the liquid part and the turbulence representation part of the simulator are properly accounted in the forward model.

  20. 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...

  1. 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...

  2. Microsoft Word - Teske-JJ.doc

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

    Analysis of the Corrective Maintenance Records of the ARM SGP CART J. J. Teske Aeromet Corporation Tulsa, Oklahoma J. C. Liljegren and D. L. Sisterson Environmental Research Division Argonne National Laboratory Argonne, Illinois Introduction The primary responsibility of Southern Great Plains (SGP) Site Operations is to operate and maintain the Atmospheric Radiation Measurement (ARM) instruments at the SGP Cloud and Radiation Testbed (CART) facilities. Since 1992, SGP Site Operations has

  3. 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

  4. Research Highlight

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

    in Cumulus over the Ocean (RICO) campaign. Error bars in AMF data represent 95 percent confidence intervals. SPOP from AMF data, compared to (b) SPOP from the VOCALS Regional...

  5. W-band ARM Cloud Radar (WACR) Update and Status

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

    width) along with spectra data. The AMF WACR will be deployed with the AMF in Niamey, Niger early in 2006. We will present ingested WACR data formats available from the ARM...

  6. Research Highlight

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

    deployment-mean cloud and precipitation fraction during the AMF deployment at Niamey, Niger. The first international deployment of the AMF in Niamey, Niger,-one of the hottest...

  7. arm09

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

    experience benefit ARM? - relevant to shipmarine platform (AMF2) - experience w 90, 183 GHz f similarity to AMF AzoresPt. Reyes deployment Thanks Questions? pzuidema@miami.edu...

  8. ARM - Datastreams - tsiskyimage

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

    PVC M1 Browse Data Highland Center, Cape Cod MA; AMF1 retired PYE M1 Browse Data Point Reyes, CA retired SBS M1 Browse Data Steamboat Springs CO, Valley Site; AMF2 retired TMP M1...

  9. ARM - Datastreams - skyrad20s

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

    retired PVC M1 Browse Data Highland Center, Cape Cod MA; AMF1 retired PYE M1 Browse Data Point Reyes, CA retired SBS M1 Browse Data Steamboat Springs CO, Valley Site; AMF2 retired...

  10. Newsletter Southern Great Plains

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

    for field campaigns lasting 6-12 months. To date, the AMF has been deployed at Point Reyes, California; Niamey, Niger; and Heselbach, Germany. Currently, the AMF is gathering...

  11. ARM - Datastreams - nfov2ch

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

    Observatory, Nainital, Uttarkhand, India; AMF1 retired PVC M1 Browse Data Browse Plots Highland Center, Cape Cod MA; AMF1 retired PYE M1 Browse Data Browse Plots Point Reyes, CA...

  12. Newsletter Southern Great Plains

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

    ARM Mobile Facility (AMF) is in place at its first field research site in scenic Point Reyes, California. The AMF, an array of instruments in a pair of movable shelters, will...

  13. ARM - Instrument - mwr

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

    Plots ARIES Observatory, Nainital, Uttarkhand, India; AMF1 retired PVC M1 Browse Data Highland Center, Cape Cod MA; AMF1 retired PYE M1 Browse Data Browse Plots Point Reyes, CA...

  14. ARM - Instrument - gndrad

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

    Plots Highland Center, Cape Cod MA; AMF1 retired PYE M1 Browse Data Browse Plots Point Reyes, CA retired SBS M1 Browse Data Steamboat Springs CO, Valley Site; AMF2 retired TMP M1...

  15. ARM - Instrument - sonde

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

    Plots Highland Center, Cape Cod MA; AMF1 retired PYE M1 Browse Data Browse Plots Point Reyes, CA retired SBS M1 Browse Data Browse Plots Steamboat Springs CO, Valley Site; AMF2...

  16. ARM - Datastreams - sondewnpn

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

    Plots Highland Center, Cape Cod MA; AMF1 retired PYE M1 Browse Data Browse Plots Point Reyes, CA retired SBS M1 Browse Data Browse Plots Steamboat Springs CO, Valley Site; AMF2...

  17. ARM - Field Campaign - MArine Stratus Radiation Aerosol and Drizzle...

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

    govCampaignsMArine Stratus Radiation Aerosol and Drizzle (MASRAD) IOP Campaign Links Science Plan AMF Point Reyes Website AMF Point Reyes Data Plots ARM Data Discovery Browse Data...

  18. ARM - Facility News Article

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

    Adieu to Niger, Guten Tag to Germany Bookmark and Share The AMF decommissioning team poses for a group photo at the AMF site near the airport in Niamey. At midnight January 7,...

  19. ARM - Field Campaign - COPS - Initiation of Convection and the

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

    Microphysical Properties of Clouds in Orographic Terrain govCampaignsCOPS - Initiation of Convection and the Microphysical Properties of Clouds in Orographic Terrain Campaign Links AMF Black Forest Deployment Related Campaigns COPS - AOS Intercomparison 2007.08.09, Jefferson, AMF COPS - ADMIRARI at Black Forest 2007.07.30, Battaglia, AMF COPS - University of Cologne Micromet Station 2007.07.23, Schween, AMF COPS - Cloud Microwave Validation Experiment in Support of CLOWD 2007.06.22,

  20. Clouds, Aerosols and Precipitation in

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

    the Marine Boundary Layer (CAP-MBL) Graciosa Island, Azores, NE Atlantic Ocean Graciosa Island, Azores, NE Atlantic Ocean May 2009-December 2010 May 2009-December 2010 Rob Wood, University of Washington Rob Wood, University of Washington AMF Deployment Team Thanks to Mark Miller: AMF Site Scientist Mark Miller: AMF Site Scientist Kim Nitschke: AMF Site Manager CAP-MBL Proposal Team Importance of Low-Clouds for Climate Imperative that we understand the processes controlling the formation,

  1. ARM - Feature Stories and Releases Article

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

    9, 2010 [Feature Stories and Releases] Mobile Facility Completes First Test at Sea Bookmark and Share Rich Coulter and Brad Orr, co-managers for the AMF2, install instruments on the bow of the RV Connecticut for operational testing in June. In mid-June, the second ARM Mobile Facility, or AMF2, faced its first test on the open seas off the coast of Cape Cod, Massachusetts. Led by Rich Coulter, AMF2 co-manager from Argonne National Laboratory, the AMF2 team installed a subset of AMF2 instruments

  2. ARM - Publications: Science Team Meeting Documents: Deployment of a

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

    scintillometer for optical turbulence investigation at NSA - Barrow Deployment of a scintillometer for optical turbulence investigation at NSA - Barrow Moudry, Dana University of Alaska Fairbanks Sassen, Kenneth University of Alaska Fairbanks Vaucher, Gail Army Research Laboratory Zak, Bernard Sandia National Laboratories The University of Alaska Fairbanks in collaboration with the White Sands Army Research Lab deployed a reciprocal-path scintillometer to the ARM - NSA site at Barrow in fall

  3. 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 Mlawer 3 , and Tim Shippert 4 1-SSEC, University of Wisconsin - Madison, 2 - CIRES, University of Colorado, 3 - Atmospheric and Environmental Research, 4- Pacific Northwest National Laboratory Photo by D. Turner at NSA site, Mar 2007 Introduction A multi-sensor conditional cloud property retrieval algorithm has been developed for the ARM NSA site. This "microbase" algorithm was used to determine

  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. NCEP:

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

    surface net radiation: cloudy sky - clear sky cloud fraction (%) cloud fraction (%) cloud fraction (%) cloud fraction (%) cloud fraction (%) ARM/NSA vs. reanalysis summmaries NCEP: shortwave flux NCEP: longwave flux ARM/NSA validation of Arctic clouds and radiative impacts in reanalyses John E. Walsh, William L. Chapman and Diane H. Portis University of Illinois at Urbana-Champaign http://igloo.atmos.uiuc.edu/ARM/ Objectives: -- use ARM/NSA measurements to assess reanalysis-derived surface

  6. Microsoft PowerPoint - ARMSTM_2007_Westwater_et_al_02.ppt

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

    EXPERIMENTS 1. Arctic Winter Radiometric Experiment 2004 Period: March 9-April 9 2004 Location: ARM NSA, Barrow, Alaska 2. RHUBC (http://science.arm.gov/rhubc/) Period: February 22, 2007 to present Location: ARM NSA, Barrow, Alaska GOALS * Provide real time retrievals of PWV and CLP * Compare observations with ARM and Radiometrics millimeter-wave radiometers * Forward model radiative transfer studies Results from the Ground-based Scanning Radiometer's Deployments at the NSA in 2004 and 2007

  7. ARM - VAP Process - kazrcor

    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 North Slope Alaska NSA C1 Browse Data Central...

  8. Slide 1

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

    Improvements 1)Cloud classification based on measurements 2)Improved LWP retrieval 3)More conditional retrievals The ShupeTurner Microphysics Product at NSA Radiative Closure and...

  9. Section 93

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

    Fairbanks, Alaska Introduction Radiative energy is a major component of the surface energy balance in the Arctic. The North Slope of Alaska (NSA) Atmospheric Radiation...

  10. 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...

  11. 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...

  12. SCM Working Group

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

    prediction The ARM NSA Mixed-Phase Arctic Cloud Experiment (M-PACE) October 5 to October 22, 2004 Measurements Clouds and Cloud Microphysical Properties Millimeter-wavelength...

  13. A 20-Year Dataset of Downwelling Longwave Flux at the Arctic...

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

    measurements from the Surface Heat Budget of the Arctic (SHEBA) and the Atmospheric Radiation Measurement (ARM) Program's North Slope of Alaska (NSA) site at Barrow, Alaska, are...

  14. 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...

  15. Research Highlight

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

    of radiosondes launched during the 2004 NSA Arctic Winter Radiometric Experiment. Dual-radiosonde launch of the Vaisala RS90 and Chilled Mirror radiosondes is pictured here....

  16. 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 *...

  17. ARM North Slope of Alaska

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

    In 1997, the DOE Atmospheric Radiation Measurement (ARM) Climate Research Facility established research sites on the North Slope of Alaska (NSA), to provide data about cloud and ...

  18. High Spectral Resolution Infrared and Raman Lidar Observations for the ARM Program: Clear and Cloudy Sky Applications

    SciTech Connect (OSTI)

    Henry Revercomb, David Tobin, Robert Knuteson, Lori Borg, Leslie Moy

    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. More specifically, our major achievements for ARM include 1. Development of the Atmospheric Emitted Radiance Interferometer (AERI) to function like a satellite on the ground for ARM, providing a steady stream of accurately calibrated spectral radiances for Science Team clear sky and cloud applications (Knuteson et al. 2004a), 2. Detailed radiometric calibration and characterization of AERI radiances, with uncertainty estimates established from complete error analyses and proven by inter-comparison tests (Knuteson et al. 2004b), 3. AERI data quality assessment and maintenance over the extended time frames needed to support ARM (Dedecker et al., 2005) 4. Key role in the radiative transfer model improvements from the AERI/LBLRTM QME (Turner et al. 2004) and AERI-ER especially from the SHEBA experiment (Tobin et al. 1999), 5. Contributed scientific and programmatic leadership leading to significant water vapor accuracy improvements and uncertainty assessments for the low to mid troposphere (Turner et al. 2003a, Revercomb et al. 2003), 6. Leadership of the ARM assessment of the accuracy of water vapor observations from radiosondes, Raman Lidar and in situ aircraft observations in the upper troposphere and lower stratosphere (Tobin et al. 2002, Ferrare et al. 2004), 7. New techniques for characterizing clouds from AERI (DeSlover et al. 1999, Turner 2003b, Turner et al. 2003b), 8. Initial design and development of the Scanning-HIS aircraft instrument and application to ARM UAV Program missions (Revercomb et al. 2005), and 9. Coordinated efforts leading to the use of ARM observations as a key validation tool for the high resolution Atmospheric IR Sounder on the NASA Aqua platform (Tobin et al. 2005a) 10. Performed ARM site and global clear sky radiative closure studies that shows closure of top-of-atmosphere flux at the level of ~1 W/m2 (Moy et al 2008 and Section 3 of this appendix) 11. Performed studies to characterize SGP site cirrus cloud property retrievals and assess impacts on computed fluxes and heating rate profiles (Borg et al. 2008 and Section 2 of this appendix).

  19. ARM - Publications: Science Team Meeting Documents: Rotating Shadowband

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

    Spectroradiometer (RSS) at SGP: Performance, Data Processing, and Value-Added Products Rotating Shadowband Spectroradiometer (RSS) at SGP: Performance, Data Processing, and Value-Added Products Kiedron, Piotr State University of New York Albany Schlemmer, Jim The first ARM owned RSS was deployed at SGP central site in May 2003. This RSS provides direct-normal, diffuse-horizontal andtotal-horizontal components of irradiance at 1001 pixels in 360nm-1050nm spectral range every minute between

  20. Orr 2009 ARM STM poster2.ppt

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

    Status: Design, testing and implementation has been begun at SGP A U.S. Department of Energy laboratory managed by UChicago-Argonne, LLC Accomplishments and Status of SGP During 2008 Brad W. Orr 1 Dan J. Rusk 2 John Schatz 2 David Breedlove 2 Richard Eagan 1 1 Argonne National Laboratory, Argonne, IL 2 ACRF/SGP, Cherokee Nation Distributors, Stilwell, OK INSTRUMENTS GENERAL STATISTICS * Instrument Availability - Averaged over 95% during 2008. * Electronic Repair Lab - $20,000 in savings *

  1. 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

  2. ARM - Guest Instrument Facility

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

    PlainsGuest Instrument 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 SGP Fact Sheet Images Information for Guest Scientists Contacts Guest Instrument Facility ARM's Guest Instrument Facility at the SGP site near Lamont, Oklahoma. ARM's Guest Instrument Facility at

  3. ARM - Information for Guest Scientists

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

    PlainsInformation for Guest Scientists 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 SGP Fact Sheet Images Information for Guest Scientists Contacts Information for Guest Scientists As an example of the ACRF capability, SGP technicians installed this temporary 10-meter

  4. 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 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 The Southern

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

    SciTech Connect (OSTI)

    DL Sisterson

    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 days for this quarter) the instruments were operating this quarter.

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

    SciTech Connect (OSTI)

    DL Sisterson

    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 average percent of the time (24 hours per day, 365 days per year) the instruments were operating.

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

    SciTech Connect (OSTI)

    DL Sisterson

    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 average percent of the time (24 hours per day, 365 days per year) the instruments were operating.

  8. 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 cloud modeling groups, such as the GEWEX Cloud Simulation Study (GCSS) Cirrus Working Groups. In this paper we summarize our IOP-related accomplishments.

  9. 1

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

    (SGP) site. The microphysical data have been analyzed to better understand the particle size distributions, ice water contents (IWC), and ice crystal habits of these clouds. These...

  10. Testing and Deployment of an Infrared Thermometer Network at...

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

    with those from TSI * Cloud fraction data underestimate TSI values, especially when sky is overcast Operational Testing * Installed in October 2005 at SGP Guest Instrument...

  11. 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...

  12. 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...

  13. Oguni Geothermal Field | Open Energy Information

    Open Energy Info (EERE)

    Engineering. Report No.: SGP- TR-145. Benjamin Matek. Geo-energy Internet. Geothermal Energy Association. updated 20150428;cited 20150428. Available from:...

  14. 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...

  15. Newsletter Southern Great Plains

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

    measure solar radiation reflected from the surface. Figure 1. Pyranometers mounted with solar trackers collect solar radiation data at the SGP central facility (ARM photo)....

  16. Validation of Satellite-Derived Liquid Water Paths Using ARM...

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

    LWP more completely, this paper compares it with LWP retrievals based on ARM's ground-based microwave radiometers (MWR) at the SGP central and boundary facilities. The...

  17. Raman Lidar Receives Improvements

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

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

  18. 1

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

    plots, dots represent which cluster a particular day's observation belongs to and the grey (a) (b) Figure 3. (a) Timeseries of SGP aerosol types. Dots represent daily averaged...

  19. 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...

  20. Newsletter Southern Great Plains

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

    over the SGP Central Facility and Little Washita surface sites. Figure 1. A flooded cotton field near Chickasha, Oklahoma, on June 27, 2007 (photo courtesy of Tom Jackson,...

  1. ARM - SPARTICUS Planning - Data Plots

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

    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)...

  2. ARM - Facility News Article

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

    October 16, 2007 Facility News The Southern Great Plains Site Welcomes Keith Richardson Bookmark and Share Keith Richardson was hired as a Computer Network Manager at the SGP...

  3. ARM - Publications: Science Team Meeting Documents: A new Shortwave...

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

    for SGP Pommier, John NASA Ames Research Center Pilewskie, Peter University of Colorado Gore, Warren NASA Ames Research Center A new Shortwave Spectrometer (SWS) will be deployed...

  4. Uganda-Demonstrating Wind and Solar Energy on Lake Victoria ...

    Open Energy Info (EERE)

    programs, Background analysis, Technology characterizations Resource Type Guidemanual, Lessons learnedbest practices Website http:sgp.undp.orgdownloadS Country Uganda UN...

  5. Status, Accomplishments, and Recent Developments at the ARM Climate...

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

    OK Installed revised version of rotating bird deterrent device to prevent roosting turkey vultures from damaging equipment. * LICOR-7500 IRGA calibrations Trained SGP...

  6. Southern Great Plains

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

    installed together at the SGP central facility (ARM photo). October 2004 3 Okmulgee Turkey Vultures Thwarted . . . Finally After years of trying to keep messy turkey vultures...

  7. ARM - Facility News Article

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

    To ensure that ARM precipitation measurements are as accurate as possible, the SGP rain gauges (white cylinder above left) are inspected every two weeks, are statically...

  8. Newsletter Southern Great Plains

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

    Data Flowing The ACRF SGP site recently established a repair capability for its wind sensor equipment that is saving the program money and improving the availability of data....

  9. 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....

  10. X:\\ARM_19~1\\4264.FRT

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

    entraining parcel model SGP Southern Great Plains SIROS solar and infrared observing system SNR signal-to-noise ratio SORTI Solar Radiance Transmission Interferometer SPECTRE...

  11. Central Facility Benefits from Improvements

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

    the ARM SGP central facility near Lamont, Oklahoma: construction of an instrument maintenance facility, installation of an instrument to measure carbon dioxide flux, and...

  12. 1

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

    built by the ARM Program. The SGP site is located in northern Oklahoma and southern Kansas. This area was chosen for its fairly uniform geography, easy accessibility, and...

  13. Section 7

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

    micro pulse lidar data collected at the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) central facility near Lamont,...

  14. 2009-ARMSTM

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

    SGP long-term data to assess convection triggering and transition theories on stability, free- troposphere humidity and boundary layer inhomogeneity. Compared with clear-sky and...

  15. ARM - VAP Product - ripbe1mcfarlane

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

    Cloud droplet size Ice water content Liquid water content Ozone Surface albedo Surface skin temperature Locations Southern Great Plains SGP C1 Browse Data Central Facility,...

  16. Research Highlight

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

    SGP Observations Help Validate Soil Temperature Simulations Download a printable PDF Submitter: Huang, M., Pacific Northwest National Laboratory Area of Research: Surface...

  17. Diffuse Irradiance Study Planned for October

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

    and radiometers installed at the SGP CART site near Lamont, Oklahoma. The instruments measuring diffuse solar radiation have black sphere-shaped shades to keep direct sunlight from...

  18. ARM - Facility News Article

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

    the SGP site, and will begin in March for the ARM Mobile Facility deployment in Point Reyes, California. Launches for the ARM Climate Research Facility Tropical Western Pacific...

  19. ARM - Field Campaign - Cirrus Clouds and Aerosol Properties Campaign

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

    govCampaignsCirrus Clouds and Aerosol Properties Campaign ARM Data Discovery Browse Data Related Campaigns Vaisala Laser Ceilometer CL51 Demonstration 2013.11.14, Winston, SGP...

  20. ARM Science Team Meeting Scheduled The 11th Annual ARM Science

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

    from the extended facilities to 100% and reduced telephone costs greatly. SGP Goes "Buggy" Steve Sekelsky, a researcher from the University of Massachusetts, is planning to...

  1. Microsoft PowerPoint - ARM2008_poster_mbc_raf [Compatibility Mode]

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

    d W t V V i bilit N Cl d M d Aerosol and Water Vapor Variability Near Clouds Measured Aerosol and Water Vapor Variability Near Clouds Measured Aerosol and Water Vapor Variability Near Clouds Measured p y b h U d d SGP R Lid by the Upgraded SGP Raman Lidar by the Upgraded SGP Raman Lidar by the Upgraded SGP Raman Lidar by t e Upg aded SG a a da 1 2 3 4 4 Richard Ferrare 1 David Turner 2 Marian Clayton 3 Rob Newsom 4 Chitra Sivaraman 4 Richard Ferrare 1 David Turner 2 Marian Clayton 3 Rob Newsom 4

  2. 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...

  3. ARM - Publications: Science Team Meeting Documents

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

    cloud optical depth required to determine the observed surface flux. Aerosol number concentration at the SGP site was determined from the observed CN number concentration as well...

  4. miller-98.pdf

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

    figure, please see http:www.arm.govdocsdocumentstechnical conf9803 miller-98.pdf.) Figure 2. (a) (top) Composite operating modes for all SGP radars and (b) (bottom)...

  5. The Broadband Heating Rate Profile (BBHRP) VAP

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

    The expansion of the existing clear-sky closure analyses to the SW is relatively straightforward, with suitable procedures having been developed for previous case studies at SGP...

  6. Techniques and Methods Used to Determine the Best Estimate of...

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

    the Science Team Meeting, we presented the preliminary analysis of surface radiation measurement data quality at the Southern Great Plains (SGP) extended facilities (Shi and Long)....

  7. ARM - Publications: Science Team Meeting Documents

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

    Communications Upgrade for SGP Extended Facilities Smith, J. (a), Reed, R. (a), Eagan, R. (b), and Ermold, B. (c), Aeromet Inc. (a), Argonne National Laboratory (b), Pacific ...

  8. ARM Assists Lilac Phenology Network

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

    Program's SGP central facility that is contributing information about global climate change. The monitoring effort is the Lilac Phenology Network, overseen by Professor Mark D....

  9. New Eddy Correlation Systems Installed

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

    3 New Eddy Correlation Systems Installed New and improved eddy correlation (ECOR) systems are being installed at the SGP CART site. ECOR instrument mentor Mikhail Pekour assembled...

  10. DISCLAIMER

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

    SGP site data: Jim Liljegren working with Chris Doran at Pacific Northwest Laboratory; Marina Zivkovic working with Jean-Francois Louis at Atmos. & Environmental Research, Inc., in...

  11. ARM - Journal Articles 2011

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

    Berg Surface summertime radiative forcing by shallow cumuli at the ARM SGP (Citation) Journal of Geophysical Research - Atmospheres Yes ARM ASR Deng Physical mechanisms for the...

  12. ARM - Facility News Article

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

    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...

  13. Newsletter Southern Great Plains

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

    by all. After the feast, Facilities Manager and Instrument Calibration Manager Dan Nelson was joined by SGP Site Manager Brad Orr for the ceremonious "safety tape" cutting,...

  14. 1

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

    during two intensive observation periods (IOPs) conducted at the Atmospheric Radiation Measurements (ARM) Program Southern Great Plains (SGP) site in Oklahoma, in the ...

  15. Tropospheric and Lower Stratospheric Ozone Profiles From AERI...

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

    (AERI-X) has been in regular operation at the Southern Great Plains (SGP) Atmospheric Radiation Measurements (ARM) Program site, conditions permitting, since the mid-1990s. ...

  16. 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) ...

  17. 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 ...

  18. 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...

  19. 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...

  20. Microsoft PowerPoint - liu_talk.ppt [Compatibility Mode

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

    - Mean vertical structure - Histograms * Ice water over 10x10 area centered D i Darwin - Mean distribution - vs. cloud temperature - vs. SGP March 2000 Ice Water Retrieval...

  1. Scanning Cloud Radar Observations at Azores: Preliminary 3D Cloud Products

    SciTech Connect (OSTI)

    Kollias, P.; Johnson, K.; Jo, I.; Tatarevic, A.; Giangrande, S.; Widener, K.; Bharadwaj, N.; Mead, J.

    2010-03-15

    The deployment of the Scanning W-Band ARM Cloud Radar (SWACR) during the AMF campaign at Azores signals the first deployment of an ARM Facility-owned scanning cloud radar and offers a prelude for the type of 3D cloud observations that ARM will have the capability to provide at all the ARM Climate Research Facility sites by the end of 2010. The primary objective of the deployment of Scanning ARM Cloud Radars (SACRs) at the ARM Facility sites is to map continuously (operationally) the 3D structure of clouds and shallow precipitation and to provide 3D microphysical and dynamical retrievals for cloud life cycle and cloud-scale process studies. This is a challenging task, never attempted before, and requires significant research and development efforts in order to understand the radar's capabilities and limitations. At the same time, we need to look beyond the radar meteorology aspects of the challenge and ensure that the hardware and software capabilities of the new systems are utilized for the development of 3D data products that address the scientific needs of the new Atmospheric System Research (ASR) program. The SWACR observations at Azores provide a first look at such observations and the challenges associated with their analysis and interpretation. The set of scan strategies applied during the SWACR deployment and their merit is discussed. The scan strategies were adjusted for the detection of marine stratocumulus and shallow cumulus that were frequently observed at the Azores deployment. Quality control procedures for the radar reflectivity and Doppler products are presented. Finally, preliminary 3D-Active Remote Sensing of Cloud Locations (3D-ARSCL) products on a regular grid will be presented, and the challenges associated with their development discussed. In addition to data from the Azores deployment, limited data from the follow-up deployment of the SWACR at the ARM SGP site will be presented. This effort provides a blueprint for the effort required for the development of 3D cloud products from all new SACRs that the program will deploy at all fixed and mobile sites by the end of 2010.

  2. ARM - Facility News Article

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

    5, 2011 [Facility News] Team Continues Campaign Planning on Gan Island Bookmark and Share Mike Ritsche, technical operations manager for the AMF2, discusses instrumentation specifics with Gan airport and MMS officials. Mike Ritsche, technical operations manager for the AMF2, discusses instrumentation specifics with Gan airport and MMS officials. For its first international field campaign, the second ARM Mobile Facility (AMF2) is scheduled to operate on Gan Island in the Indian Ocean for the ARM

  3. ARM - Facility News Article

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

    22, 2011 [Facility News] Request for Proposals Now Open Bookmark and Share The ARM Climate Research Facility is now accepting applications for use of an ARM mobile facility (AMF), the ARM aerial facility (AAF), and fixed sites. Proposals are welcome from all members of the scientific community for conducting field campaigns and scientific research using the ARM Facility, with availability as follows: AMF2 available December 2013 AMF1 available March 2015 AAF available between June and October

  4. ARM - Site Instruments

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

    FacilitiesAMF Deployment, Ganges Valley, IndiaInstruments Ganges Valley Deployment AMF Home Ganges Valley Home Data Plots and Baseline Instruments Campaign Images Experiment Planning GVAX Full Proposal Abstract and Related Campaigns Science Plan Field Campaign Report Outreach GVAX Backgrounder (PDF, 1.4MB) News Education Flyer (PDF, 2.1MB) AMF Poster, 2011 Images Contacts V. Rao Kotamarthi Instruments : Ganges Valley, India Active Retired Active instruments are currently deployed at fixed or

  5. ARM - Field Campaign - Observations and Modeling of the Green Ocean Amazon

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

    (GOAMAZON) Amazon (GOAMAZON) Campaign Links GOAMAZON Website ARM Manacapuru Deployment Page ARM Data Discovery Browse Data Related Campaigns Observations and Modeling of the Green Ocean Amazon - Hi-Vol Filter Sampling 2015.03.13, de Mello Dias Machado, AMF Observations and Modeling of the Green Ocean Amazon: LIDAR Comparison 2014.10.05, Barbosa, AMF Observations and Modeling of the Green Ocean Amazon: Oxidation Flow Reactor 2 2014.08.15, Palm, AMF Observations and Modeling of the Green Ocean

  6. ARM - ACAPEX News and Press

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

    CaliforniaACAPEX News and Press HI to CA Deployment AMF Home Hawaii to California Home Deployment Operations Baseline Instruments Experiment Planning ACAPEX Full Proposal Abstract and Related Campaigns Science Plan Backgrounder (PDF) Outreach News and Press Images Contacts L. Ruby Leung, Principal Investigator Nicki Hickmon, AMF Operations Paul Ortega, AMF Operations Beat Schmid, AAF Technical Director ACAPEX News and Press Media Coverage KCRA, CNN Affiliate "Scientists dissect approaching

  7. ARM - Site Instruments

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

    Pearl Harbor, Hawaii, to San Francisco, CaliforniaInstruments HI to CA Deployment AMF Home Hawaii to California Home Deployment Operations Baseline Instruments Experiment Planning...

  8. Slide 1

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

    play key roles in MJO initiation and maintenance. Planned major observations: ship-borne Doppler radar and radiationsurface flux package (AMF2), air-sea boundary layer turbulence...

  9. ARM - Facility News Article

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

    Sahel from January through December 2006, with the primary facility at the Niamey airport, and an ancillary site in Banizoumbou. The AMF recorded a major dust storm that...

  10. ARM - Field Campaign - Azores: Clouds, Aerosol and Precipitation...

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

    Campaigns Azores: Above-Cloud Radiation Budget near Graciosa Island 2010.04.15, Miller, AMF Azores: Extension to Clouds, Aerosol and Precipitation in the Marine Boundary...

  11. ARM Aerosol Working Group Meeting

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

    series of retrieved dust properties, based on results from the AMF deployment in Niger, Africa. Lidar data survey Lidar profiles: fully-corrected MPL attenuated backscatter...

  12. Research Highlight

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

    Preliminary analysis of the retrievals of vertical velocities during the Niamey, Niger, and Germany's Black Forest AMF deployments have revealed distinct changes in the...

  13. Bench-Scale Cross Flow Filtration of

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

    include the ARM Mobile Facility (AMF) deployment to the Azores and with the VAMOS Ocean- Cloud-Atmosphere-Land Study (VOCALS) experiment off the coast of Chile. This...

  14. ARM - Surface Aerosol Observing System

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 Surface Aerosol Observing System The ARM Mobile Facility (AMF) is...

  15. ARM - Facility News Article

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

    of instruments collecting data for the ARM Mobile Facility field campaign at Point Reyes National Seashore. Since March 2005, the ARM Mobile Facility (AMF) has been at Point...

  16. ARM - Facility News Article

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

    Facility (AMF) is being packed up and shipped from Richland, Washington, to the Point Reyes National Seashore north of San Francisco, California. There, it will be reassembled in...

  17. Research Highlight

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

    from the Atmospheric Radiation Measurement (ARM) mobile facility (AMF) at Point Reyes, reanalysis products, and several independent satellite data sets (International...

  18. ARM - Site Instruments

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

    Point Reyes National Seashore, CaliforniaInstruments Point Reyes Deployment AMF Home Point Reyes Home Data Plots and Baseline Instruments Experiment Planning MASRAD Proposal...

  19. ARM - Feature Stories and Releases Article

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

    Facility (AMF) is being packed up and shipped from Richland, Washington, to the Point Reyes National Seashore north of San Francisco, California. There, it will be reassembled in...

  20. Communications: NREL PowerPoint Presentation Template with Light...

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

    & Tom Stoffel March 10, 2008 ACRF Upwelling Irradiances Infrared UIR Shortwave US Pt Reyes, CA Banizoumbou Niger AMF Upwelling Irradiances Warren et al. visits FKB... BCR 01402:...

  1. ARM - Facility News Article

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

    a number of other guest instruments at the ARM Mobile Facility deployment site at Point Reyes National Seashore in California. The ARM Mobile Facility's (AMF's) inaugural field...

  2. ARM - Field Campaign - MASRAD: Cloud Condensate Nuclei Chemistry...

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

    Cloud Condensate Nuclei Chemistry Measurements Campaign Links AMF Point Reyes Website ARM Data Discovery Browse Data Related Campaigns MArine Stratus Radiation Aerosol and Drizzle...

  3. ARM - Field Campaign - MASRAD - Aerosol Optical Properties

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

    govCampaignsMASRAD - Aerosol Optical Properties Campaign Links AMF Point Reyes Website ARM Data Discovery Browse Data Related Campaigns MArine Stratus Radiation Aerosol and Drizzle...

  4. ARM - Field Campaign - MASRAD: Pt. Reyes Stratus Cloud and Drizzle...

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

    govCampaignsMASRAD: Pt. Reyes Stratus Cloud and Drizzle Study Campaign Links AMF Point Reyes Website ARM Data Discovery Browse Data Related Campaigns MArine Stratus Radiation...

  5. ARM - News from the Steamboat Springs Deployment

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

    ColoradoNews from the Steamboat Springs Deployment Steamboat Deployment AMF Home Steamboat Springs Home Storm Peak Lab Data Plots and Baseline Instruments Data Sets Experiment...

  6. ARM - News from the Los Angeles to Hawaii Deployment

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

    Blog Images Contacts Nicki Hickmon, AMF Operations Lynne Roeder, Media Contact Ernie Lewis, Principal Investigator News from the Los Angeles to Hawaii Deployment Media Coverage...

  7. ARM - Site Instruments

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

    Blog Images Contacts Nicki Hickmon, AMF Operations Lynne Roeder, Media Contact Ernie Lewis, Principal Investigator Instruments : MAGIC (Marine ARM GPCI Investigation of Clouds)...

  8. ARM - Field Campaign - Application of the ARM Mobile Facility...

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

    of the ARM Mobile Facility (AMF) to Study the Aerosol Indirect Effects in China Campaign Links China Website ARM Data Discovery Browse Data Comments? We would love to...

  9. Microsoft PowerPoint - ARM200903_Poster_KHLee [Compatibility...

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

    Aerosol optical depth measurements during the EAST-AIRE and the AMF deployment in China Earth System Science Interdisciplinary Center (ESSIC), Univ. of Maryland (UMD),...

  10. ARM - Facility News Article

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

    5, 2008 Facility News Mobile Facility Anchors Multi-site Aerosol Study in China Bookmark and Share The AMF installation in Shouxian includes the primary shelters and operations...

  11. PowerPoint Presentation

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

    Studies of CloudAerosolPrecip Relationships during the AMF Deployment in Shouxian, China Christian Kummerow, Wesley Berg, Steve Saleeby, Tristan L'Ecuyer and Scott Stevens,...

  12. ARM - Site Instruments

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

    12.4M) Outreach COPS Backgrounder (PDF, 306K) Posters AMF Poster, German Vesion Researching Raindrops in the Black Forest News Campaign Images Instruments : Black Forest,...

  13. 1

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

    Background Climatology for the Atmospheric Radiation Measurement Program Mobile Facility ... for the deployment of Atmospheric Radiation Measurement (ARM) Mobile Facility (AMF) ...

  14. Clouds, Aerosol, and Precipitation in the Marine Boundary Layer: Analysis of Results from the ARM Mobile Facility Deployment to the Azores (2009/2010)

    SciTech Connect (OSTI)

    Wood, Robert

    2013-05-31

    The project focuses upon dataset analysis and synthesis of datasets from the AMF deployment entitled Clouds, Aerosols, and Precipitation in the Marine Boundary Layer (CAP?MBL) at Graciosa Island in the Azores. Wood is serving a PI for this AMF deployment.

  15. FACT SHEET U.S. Department of Energy ARM Mobile Facility

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

    t a * r - m * - HarmI cf r * f f - -* f * * - s - g pf -*L n sf af * L - t f w * - p L f * arm a f f f L - - - * * - * f - * - f f* i- -L arm m f f f * HamfI f -* - f * - - * - * f * - R - *L - - - - - L f f * * t * f f L amf L * * f - RPP * - f L amfRL * * f * * f - - o RP P c -* * - * f f * f *L * f - * -* - *L - -*L - * * *L amf * * f -* a- - * f f * * f * - -* - * amf - f * - f f - - fM b * * f - f L amf * - f f - - ff * - - f s - - - * * f f ff f -- - *L - * * * f f f f -M* f * ff - * - * *

  16. DRAFT Bear Safety Plan

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

    Bear Safety Plan June 2010 NSA_bsp_Rev9.doc 1 Atmospheric Radiation Measurement Climate Research Facility/ North Slope of Alaska/Adjacent Arctic Ocean (ACRF/NSA/AAO) Bear Safety Plan Background As a major part of DOE's participation in the US Global Change Research Program (USGCRP), the North Slope of Alaska (NSA) and Adjacent Arctic Ocean (AAO) Climate Research Facility (ACRF) exists on the North Slope of Alaska with its Central Facility near the town of Barrow. A secondary facility exists at

  17. ARM - Publications: Science Team Meeting Documents: A decade long aerosol

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

    and cloud statistics and aerosol indirect effect at the ARM SGP site A decade long aerosol and cloud statistics and aerosol indirect effect at the ARM SGP site Min, Qilong State University of New York at Albany Duan, Minzheng State University of New York at Albany Harrison, Lee State University of New York Joseph, Everette Howard University Twelve-year data of MFRSR and MWR have been used to derive aerosol and cloud optical properties at the ARM SGP. Diurnal, monthly, seasonal and

  18. Microsoft PowerPoint - 02_A_AWG_Monterey_ALIVE_Schmid_short.ppt [Compatibility Mode]

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

    Lidar Validation Experiment (ALIVE) NASA Ames Airborne Tracking 14-channel Sun photometer (AATS-14) Sky Research J-31 Research Scanning Polarimeter (RSP) N i ti l d M t l i l Cessna 206 Navigational and Meteorological Parameters Raman Lidar Micro Pulse Lidar SGP, Sep 11-22, 2005 2005 ALIVE Operations Summary ALIVE Operations Summary * Sep 11 - 22, 2005 Sep 11 22, 2005 * 23 research flight hours * 12 flights over SGP on 8 days 12 flights over SGP on 8 days * 5 coordinated flights with C206 *

  19. Slide 1

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

    processes within the clouds when aircraft above the NSA site VISIBILITY PARTICLE SIZE DISTRIBUTION PR PR PR PR PR *ICE FOG (IF) *BLOWING SNOW(BS) *DIAMOND DUST(DD)...

  20. ARM - Facility News Article

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

    climate research at high-latitudes. On August 16, U.S. Senators Hillary Clinton, John McCain, Susan Collins, and Lindsey Graham visited the North Slope of Alaska (NSA) on...

  1. Radiative Heating in Underexplored Bands Campaign (RHUBC)

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

    helium and liquid nitrogren * Last mission: January 2007 over the UK Forecasting 101 CRAS Model Thanks to Bob Aune NOAA NESDIS PSU NSA SST Hans Verlinde and Chad Bahrmann...

  2. ARM - Education Article

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

    Climate Change Kiosk Opening Ceremony Bookmark and Share People view the new ARM Climate Change Kiosk at the NSA site. The ARM Education and Outreach team had a very successful...

  3. ARM - Facility News Article

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

    Wireless Solutions Bookmark and Share As reported in late 2006, a total precipitation sensor (TPS) was installed near the ARM North Slope of Alaska (NSA) site in Barrow, to...

  4. ARM - Facility News Article

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

    as the NSA Operations Manager. Mark has a B.S. in environmental engineering from New Mexico Tech and a M.S. and Ph.D. in electrical engineering from the University of New Mexico....

  5. Slide 1

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

    ISDAC weather patterns Hans Verlinde and Chad Bahrmann NSA Site Scientist Team Upper-level trough in Aleutians - Bering Strait area Upper-level jet south of Alaska - North Slope in...

  6. ARM - Field Campaign - NSF-Sponsored Aerosonde Project

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

    personnel requested and received lodging during the IOP at the ARM duplex on a non-interference basis. An earlier Aerosonde IOP at the NSA was funded in part by ARM, which has a...

  7. 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...

  8. ARM TR-008

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

    ... Darwin 200412 current operational SZM433EP NSA-2 200312 200408 UW SZM433EP Oliktok Pt. 200409 200410 UW The Surface Heat Budget of the Arctic Ocean (SHEBA) and Southern ...

  9. 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 Genio, A.D.(b), and Rossow, W.(b), Columbia University (a), NASAGISS (b) Thirteenth...

  10. 1

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

    point to the Arctic as a region that is particularly sensitive to global climate change (e.g., IPCC 1997). The North Slope of Alaska-Adjacent Arctic Ocean (NSA-AAO) Cloud and...

  11. ARM TR-008

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

    Surface and Tower Meteorological Instrumentation at NSA January 2006 M.T. Ritsche Work supported by the U.S. Department of Energy, Office of Science, Office of Biological and...

  12. Parameterizing Size Distribution in Ice Clouds

    SciTech Connect (OSTI)

    DeSlover, Daniel; Mitchell, David L.

    2009-09-25

    PARAMETERIZING SIZE DISTRIBUTIONS IN ICE CLOUDS David L. Mitchell and Daniel H. DeSlover ABSTRACT An outstanding problem that contributes considerable uncertainty to Global Climate Model (GCM) predictions of future climate is the characterization of ice particle sizes in cirrus clouds. Recent parameterizations of ice cloud effective diameter differ by a factor of three, which, for overcast conditions, often translate to changes in outgoing longwave radiation (OLR) of 55 W m-2 or more. Much of this uncertainty in cirrus particle sizes is related to the problem of ice particle shattering during in situ sampling of the ice particle size distribution (PSD). Ice particles often shatter into many smaller ice fragments upon collision with the rim of the probe inlet tube. These small ice artifacts are counted as real ice crystals, resulting in anomalously high concentrations of small ice crystals (D < 100 m) and underestimates of the mean and effective size of the PSD. Half of the cirrus cloud optical depth calculated from these in situ measurements can be due to this shattering phenomenon. Another challenge is the determination of ice and liquid water amounts in mixed phase clouds. Mixed phase clouds in the Arctic contain mostly liquid water, and the presence of ice is important for determining their lifecycle. Colder high clouds between -20 and -36 oC may also be mixed phase but in this case their condensate is mostly ice with low levels of liquid water. Rather than affecting their lifecycle, the presence of liquid dramatically affects the cloud optical properties, which affects cloud-climate feedback processes in GCMs. This project has made advancements in solving both of these problems. Regarding the first problem, PSD in ice clouds are uncertain due to the inability to reliably measure the concentrations of the smallest crystals (D < 100 m), known as the small mode. Rather than using in situ probe measurements aboard aircraft, we employed a treatment of ice cloud 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.

  13. Effects of initial radius of the interface and Atwood number on nonlinear saturation amplitudes in cylindrical Rayleigh-Taylor instability

    SciTech Connect (OSTI)

    Liu, Wanhai; Yu, Changping; Li, Xinliang

    2014-11-15

    Nonlinear saturation amplitudes (NSAs) of the first two harmonics in classical Rayleigh-Taylor instability (RTI) in cylindrical geometry for arbitrary Atwood numbers have been analytically investigated considering nonlinear corrections up to the fourth-order. The NSA of the fundamental mode is defined as the linear (purely exponential) growth amplitude of the fundamental mode at the saturation time when the growth of the fundamental mode (first harmonic) is reduced by 10% in comparison to its corresponding linear growth, and the NSA of the second harmonic can be obtained in the same way. The analytic results indicate that the effects of the initial radius of the interface (r{sub 0}) and the Atwood number (A) play an important role in the NSAs of the first two harmonics in cylindrical RTI. On the one hand, the NSA of the fundamental mode first increases slightly and then decreases quickly with increasing A. For given A, the smaller the r{sub 0}/λ (with λ perturbation wavelength) is, the larger the NSA of the fundamental mode is. When r{sub 0}/λ is large enough (r{sub 0}≫λ), the NSA of the fundamental mode is reduced to the prediction of previous literatures within the framework of third-order perturbation theory [J. W. Jacobs and I. Catton, J. Fluid Mech. 187, 329 (1988); S. W. Haan, Phys. Fluids B 3, 2349 (1991)]. On the other hand, the NSA of the second harmonic first decreases quickly with increasing A, reaching a minimum, and then increases slowly. Furthermore, the r{sub 0} can reduce the NSA of the second harmonic for arbitrary A at r{sub 0}≲2λ while increase it for A ≲ 0.6 at r{sub 0}≳2λ. Thus, it should be included in applications where the NSA has a role, such as inertial confinement fusion ignition target design.

  14. 1

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

    North Slope of Alaska (NSA) is home to one of the ARM Program's outdoor research sites. The NSA site has locations in the towns of Barrow and Atqasuk. These areas are important because ice and snow take in sunlight much differently than water, and it is important for scientists to understand the differences. Also, the Arctic is the most sensitive area on earth for potential warming due to heat trapped by greenhouse gases

  15. ARM - Publications: Science Team Meeting Documents: Assessing interannual

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

    and spatial variability in cloud radiative forcing at the TWP and NSA ARM sites. 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 long time series of measurements from the ARM sites in the Tropical Western Pacific and Coastal Arctic provide a useful comparative data set with which to research the local effects of clouds and their impacts on the surface radiation

  16. ARM - Facility News Article

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

    7, 2015 [Facility News] New Virtual Tour Takes ARM Users to the "Top of the World" Bookmark and Share Featured in the virtual tour, the Great White Instrument Platform houses the most instruments of any installation at ARM's NSA site, including five radiometers, two radars, two lidars, a total sky imager, and an infrared thermometer. Featured in the virtual tour, the Great White Instrument Platform houses the most instruments of any installation at ARM's NSA site, including five

  17. ARM - Publications Article

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

    , 2015 [Publications] North Slope of Alaska Priorities Workshop Report Available Bookmark and Share Cover Page With its rapidly changing environment, the Arctic is an exciting place for climate 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 reconfigured to provide more in-depth observations at fewer sites; the NSA Priorities Workshop was held in September 2014 for the research

  18. 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., Nguyen, L., Smith, W. L., Jr., Ayers, J.K., Doelling, D.R., and Spangenberg, D.A., Analytical Services and Materials, Inc.; Minnis, P., and Young, D.F., National Aeronautics and Space Administration-Langley Research Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Radiation Measurement (ARM) Program's polar sites on the North Slope of Alaska (NSA) measure time

  19. 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., Verlinde, J., Harrington, J.H., Clothiaux, E.E., Avramov, A.E., and Greenberg, S.D., The Pennsylvania State University Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting In August 2002 the transition of the ARM NSA Site Scientist Team to Pennsylvania State University was complete. This poster provides an overview of the new SST and describes research, operations, and educational aspects of

  20. ARM Southern Great Plains

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

    With the rapid changes in the arctic environment, the North Slope of Alaska (NSA) has become a focal point for atmospheric and ecological research. Since 1997, the Atmospheric Radiation Measurement (ARM) Climate Research Facility has gathered climate data at its NSA site in Barrow, the northernmost city in the United States located on the edge of the Arctic Ocean. The ARM Facility established multiple climate research sites on the North Slope to provide data about Arctic clouds and

  1. ARM - Arctic Meetings of Interest

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

    ResearchArctic Meetings of Interest Related Information Collaborations Meetings of Interest Data Sources ARM Data Discovery Browser NSA Data Past ARM NSA campaigns NCAR/UCAR National Oceanic and Atmospheric Administration Arctic Meetings of Interest Dates Meeting Important Deadlines April 18, 2014 Arctic Black Carbon Webinar Science Activities Hosted by the Interagency Arctic Research Policy Committee (IARPC), this webinar addresses current science questions and activities related to Arctic

  2. ARM - Collaborations

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

    Arctic ResearchCollaborations Related Information Collaborations Meetings of Interest Data Sources ARM Data Discovery Browser NSA Data Past ARM NSA campaigns NCAR/UCAR National Oceanic and Atmospheric Administration Collaborations ARCUS - Arctic Research Consortium of the United States. Formed in 1988 and headquartered at Fairbanks, Alaska, ARCUS is a non-profit corporation consisting of institutions organized and operated for educational, professional, or scientific purposes. It complements and

  3. ARM - Site Instruments

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

    Hyytiälä, FinlandInstruments Hyytiälä Deployment AMF Home Hyytiälä Home Experiment Planning Abstract and Related Campaigns Science Plan Deployment Operations Baseline Instruments and Data Plots at the Archive BAECC Instruments AMF2 Management and Operations Outreach News & Press BAECC Blog Backgrounder (PDF, 1.5MB) Poster (JPEG, 1.3MB) Education Flyer (English) (PDF, 1.3MB) Education Flyer (Finnish) (PDF, 1.3MB) Images Contacts Nicki Hickmon, AMF Operations Tuukka Petäjä, Principal

  4. ARM - Field Campaign - Two-Column Aerosol Project (TCAP)

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

    govCampaignsTwo-Column Aerosol Project (TCAP) Campaign Links TCAP website ARM Data Discovery Browse Data Related Campaigns Two-Column Aerosol Project (TCAP): Field Evaluation of Real-time Cloud OD Sensor TWST 2013.04.15, Scott, AMF Two-Column Aerosol Project (TCAP): Winter Aerosol Effects on Cloud Formation 2013.02.04, Cziczo, AMF Two-Column Aerosol Project (TCAP): CU GMAX-DOAS Deployment 2012.07.15, Volkamer, AMF Two-Column Aerosol Project (TCAP): Aerosol Light Extinction Measurements

  5. ARM - News from the Hyytiälä, Finland, Deployment

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

    FinlandNews from the Hyytiälä, Finland, Deployment Hyytiälä Deployment AMF Home Hyytiälä Home Experiment Planning Abstract and Related Campaigns Science Plan Deployment Operations Baseline Instruments and Data Plots at the Archive BAECC Instruments AMF2 Management and Operations Outreach News & Press BAECC Blog Backgrounder (PDF, 1.5MB) Poster (JPEG, 1.3MB) Education Flyer (English) (PDF, 1.3MB) Education Flyer (Finnish) (PDF, 1.3MB) Images Contacts Nicki Hickmon, AMF Operations Tuukka

  6. arm_KI_TPA_2007.cdr

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

    Attempt to Distinguish Dynamical and Microphysical Contributions to the Radiative Properties of Cirrus Clouds at the ARM SGP site K. Ivanova¹ and T. Ackerman² ¹Pennsylvania State University ²University of Washington => * * * - * * * * ?

  7. 1

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

    Five Years of Clear-Sky Solar Radiation Measurements and Aerosol Forcing at the SGP ARM Site G. Lesins and Q. Fu Department of Oceanography Dalhousie University Halifax, Nova...

  8. Section 98

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

    there is another view of the SGP CART Site that is not seen by many, and that is the logistics of the day-to-day operation of a 55,000-mi research facility that has no walls or...

  9. HDR Geothermal Energy: Important Lessons From Fenton Hill

    National Nuclear Security Administration (NNSA)

    Stanford University, Stanford, California, February 9-11, 2009 SGP-TR-187 HOT DRY ROCK GEOTHERMAL ENERGY: IMPORTANT LESSONS FROM FENTON HILL Donald W. Brown Los Alamos National...

  10. ARM - Publications: Science Team Meeting Documents

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

    A Comparison of the TSIWSI Cloud Fraction Estimates at the SGP Slater, D.W.(a), Long, C.N.(a), and Tooman, T.P.(b), Pacific Northwest National Laboratory (a), Sandia National...

  11. 1

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

    CPI during the 2000 Cloud IOP over ARM's SGP site. 1 Fifteenth ARM Science Team Meeting Proceedings, Daytona Beach, Florida, March 14-18, 2005 Table 1. Geometry of fundamental...

  12. ARM - As-PECAN - News

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

    Related Campaigns ARM Support for the Plains Elevated Convection at Night Experiment: Doppler Lidar Operations 2015.06.01, Turner, SGP Comments? We would love to hear from you...

  13. ARM - Publications: Science Team Meeting Documents

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

    with Supercooled Liquid Water Generating Heads from the SGP Central Facility Campbell, J.R.(a), Welton, E.J.(b), Spinhirne, J.D.(c), Starr, D.O'C.(d), and Ferrare,...

  14. ARM - Facility News Article

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

    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 collection and storage....

  15. Remote/New sites: Many Field

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

    Fischer Single Frequency GPS H2Ov network-John Braun SAM Support for CLASIC-John DeVore SGP Aerosol Evolution Study-Don Collins Sun and Aureole Measurement...

  16. ARM - Facility News Article

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

    Share In April, operations personnel completed a series of cost-saving data communication changes at the ARM Climate Research Facility Southern Great Plains (SGP) locale. The T-1...

  17. ARM - Publications: Science Team Meeting Documents

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

    from Multispectral Satellite Data Over the ARM SGP Smith, W.L., Jr., Minnis, P., and Young, D.F., NASA Langley Research Center Eleventh Atmospheric Radiation Measurement (ARM)...

  18. ARM - Facility News Article

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

    Dr. Yeon-Hee Kim; Doug Sisterson, SGP site manager; Dr. Seungsook Shin; and Dr. Kwan-Young Chung. Commemorating the visit to the ARM Southern Great Plains site are (left of...

  19. ARM - Facility News Article

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

    24, Pete Lamb attended a board of director's meeting for the Guthrie-Edmond Regional Airport to provide an overview of RACORO and the ARM Southern Great Plains (SGP) site. A few...

  20. ARM - Field Campaign - Microwave Radiometer Profiler Evaluation

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

    vapor, and low-resolution cloud liquid water. It was deployed at the Blackwell-Tonkawa airport, northeast of the ARM SGP central facility, from 25 February through 22 March 2000,...

  1. Section 22

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

    (SGP) site has been operational since July 1995. This instrument, identified by the serial number AERI-01, is the first of a series of operational instruments designed and built...

  2. ARM - ARM Mobile Facility 1 Article

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

    SGP 6 STORMVEX 29 TCAP 3 Search News Search Blog News Center All Categories What's this? Social Media Guidance News Center All Categories Features and Releases Facility News Field...

  3. ARM - Events Article

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

    SGP 6 STORMVEX 29 TCAP 3 Search News Search Blog News Center All Categories What's this? Social Media Guidance News Center All Categories Features and Releases Facility News Field...

  4. ARM - Employment Opportunities Article

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

    SGP 6 STORMVEX 29 TCAP 3 Search News Search Blog News Center All Categories What's this? Social Media Guidance News Center All Categories Features and Releases Facility News Field...

  5. ARM - Publications: Science Team Meeting Documents

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

    Properties from Aircraft Measurements Over the SGP Cairns, B. (a), Lacis, A.A. (b), Carlson, B.E. (b), Alexandrov, A. (a), and Barnard, J.C. (c), Columbia University (a), NASA...

  6. Research Highlight

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

    For the SGP CART site case, the precipitable water vapor was 4.0 cm and the near ground air temperature was 300K, while for the SHEBA case, these values were 0.35 cm and...

  7. 1

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

    For the SGP CART site case, the precipitable water vapor was 4.0 cm and the near ground air temperature was 300 K; while for the SHEBA case, these values were 0.35 cm...

  8. Research Highlight

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

    (Right) 2009 monthly mean 10 cm soil moisture (kg m-2) from the east (black) and west (grey) profiles of SWATS measurements at the ARM SGP Central Facility, as well as from the...

  9. An Improved Hindcast Approach for Evaluation and

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

    (Right) 2009 monthly mean 10 cm soil moisture (kg m-2) from the east (black) and west (grey) profiles of SWATS measurements at the ARM SGP Central Facility, as well as from the...

  10. Research Highlight

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

    from a monthly series of 96-class SOMs. 95% confidence intervals are shaded in grey. The ARM SGP site in Lamont, Oklahoma, is home to one of the longest records of...

  11. ARM - Facility News Article

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

    throughout the reduced SGP domain, now an area of approximately 22,500 square kilometers, or the approximate area of a modern climate model grid cell. Centered around the...

  12. Sep08.doc

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

    measurements, three scanning, compact microwave radiometers were deployed, each 10 kilometers (6.2 miles) apart, to form a triangle. One of the radiometers was based at the SGP...

  13. 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...

  14. ARM - Field Campaign - Cloud LAnd Surface Interaction Campaign...

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

    Campaign Links CLASIC Website ARM Data Discovery Browse Data Related Campaigns CLASIC - SAM Support 2007.06.09, DeVore, SGP CLASIC - 9.4 GHz Phase Array Radar 2007.06.08, Kollias,...

  15. PowerPoint Presentation

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

    Diameter ( m) Size Spectrum ( m) Hexagonal Columns (C1e) Hexagonal Plates (P1a) SAM 201 at SGP 4 APR 06 16:00:43 UT X 2 (Columns) 5.1 X 2 (Plates) 1.0 Est....

  16. ARM - Facility News Article

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

    called by the name "anvil" for its shape, are one type of cloud system researchers hope to encounter during MC3E. Beginning April 2011, the ARM Southern Great Plains (SGP)...

  17. 1

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

    DQ information. In addition, DQRs are being used to color the quality of data via the Meta Data Navigator. Instrument Health and Status Website (http:rl.sgp.arm.govsgpdq)....

  18. Singapore: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    ","visitedicon":"" Country Profile Name Singapore Population 5,469,700 GDP 298 Energy Consumption 2.38 Quadrillion Btu 2-letter ISO code SG 3-letter ISO code SGP Numeric ISO...

  19. ARM - Facility News Article

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

    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...

  20. Poster Abstract of Nineteenth ARM STM: Sort by Title

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

    and Their Impact on Surface Radiation Budget at Barrow, Alaska ABSTRACT Dong, X., Xi, B., Crosby, K., Long, C., and Stone, R. Accomplishments and Status of the SGP During...

  1. 1

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

    and the corresponding extended abstract, by Christy and Long.) The Figure 1 shows the location of the SGP surface sites by latitudelongitude, and the associated area (red box) of...

  2. ARM - Publications: Science Team Meeting Documents

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

    Spring 2000 Cloud IOP at the SGP CART site is being used to generate three-dimensional volumetric distributions of cloud reflectivity. During the IOP, the range of cloud...

  3. ARM - Publications: Science Team Meeting Documents: Investigation...

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

    Investigation of the impact of aerosols on clouds during the 2003 Aerosol IOP at the SGP Guo, Huan University of Michigan Aerosol-cloud interaction, that is, the aerosol indirect...

  4. ARM - Facility News Article

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

    for Checkup Bookmark and Share During the MWR Intercomparison Study at the SGP site, a liquid nitrogen-filled blackbody target (shown on top of the MWR in the foreground) is...

  5. ARM - Publications: Science Team Meeting Documents

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

    Correlaton Between Satellite-Derived Water Cloud Microphysical Properties and ARM Aerosol Data at the SGP Smith, W.L., Jr.(a), Minnis, P.(a), Ferrare, R.A.(a), and Khaiyer,...

  6. Newsletter Southern Great Plains

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

    at the ACRF Southern Great Plains (SGP) site has helped to correct problems related to signal interference. The WACR is a 95-GHz system designed for a unique purpose -...

  7. ARM - Field Campaign - International Pyrgeometer Intercomparison

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

    ably aided by Jim Teske's staff at the SGP site most notably, Dan Nelson, Craig Webb, Chad Bahrman, Rod Soper, Tim Grove, and Cindy Kugel. For data sets, see below. Summary The...

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

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

    Shallow convection systems over the SGP are amenable to large-eddy simulation (LES) with domains on the order of a few tens of kilometers. Their resolution is reasonably...

  9. ARM - Publications: Science Team Meeting Documents

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

    Variability of Low Stratus Over the ARM SGP CART Based on Cloud Radar Data and LES Simulations Kogan, Z.N., Mechem, D.B., and Kogan, Y.L., Cooperative Institute for Mesoscale...

  10. ARM - Publications: Science Team Meeting Documents: W-Band ARM...

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

    Kevin Pacific Northwest National Laboratory The W-Band ARM Cloud Radar (WACR) is a dual polarization 95 GHz radar that will be deployed at the SGP CART site in the spring of...

  11. ARM - Data Announcements Article

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

    Large-Scale Forcing Data Set for SPARTICUS Available Bookmark and Share Precipitation (top) and Omega (bottom) in April 2010 at SGP based on large-scale forcing data for SPARTICUS....

  12. CCRS Landcover Maps From Satellite Data

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

    Trishchenko, Alexander

    2008-01-15

    The Canadian Centre for Remote Sensing (CCRS) presents several landcover maps over the SGP CART site area (32-40N, 92-102W) derived from satellite data including AVHRR, MODIS, SPOT vegetation data, and Landsat satellite TM imagery.

  13. ARM - Facility News Article

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

    2D video disdrometer is collecting precipitation data at Kessler Farm, near the SGP's Purcell Boundary Facility. In late April, an NCAR 2D video disdrometer was installed at...

  14. ARM - Field Campaign - ARM Airborne Carbon Measurements (ARM...

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

    2 submitted) in the past four years. We will continue our airborne study of atmospheric composition and carbon cycling in the SGP. The goals of this measurement program are to...

  15. 1

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

    in the SGP for CRMSCM input. Corresponding Author W. F. Feltz, wayne.feltz@ssec.wisc.edu, (608) 265-6283 References Benjamin, S. G., J. M. Brown, K. J. Brundage, B....

  16. ARM - Facility News Article

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

    to show Bamzai, her husband, and daughter around the site. From the warmth of the crew cab pickup, they toured the Central Facility, which is the heart of the SGP site, not to...

  17. ARM - Field Campaign - PGS Validatation

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

    Discovery Browse Data Related Campaigns Precision Gas Sampling (PGS) Validation Field Campaign 2008.01.01, Fischer, SGP Comments? We would love to hear from you Send us a note...

  18. ARM - Field Campaign - Precision Gas Sampling (PGS) Validation...

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

    govCampaignsPrecision Gas Sampling (PGS) Validation Field Campaign ARM Data Discovery Browse Data Related Campaigns PGS Validation 2011-2013 2011.03.01, Fischer, SGP PGS...

  19. ARM - Field Campaign - PGS Validation 2011-2013

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

    Discovery Browse Data Related Campaigns Precision Gas Sampling (PGS) Validation Field Campaign 2008.01.01, Fischer, SGP Comments? We would love to hear from you Send us a note...

  20. ARM - Campaign Instrument - soil

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

    would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Soil Measurement from the SGP (SOIL) Instrument Categories Surface...