Satellite Validation and Related Activities at the Satellite Validation and Related Activities at the Howard University Beltsville Campus Howard University Beltsville Campus D. N. Whiteman , M. Adam 2 , C. Barnet 13 , R. Delgado 3 , B. Demoz 1 , J. Fitzgibbon 4 , R. D. N. Whiteman 1 , M. Adam 2 , C. Barnet 13 , R. Delgado 3 , B. Demoz 1 , J. Fitzgibbon 4 , R. 1 Forno 12 , R. Herman 8 , R. Hoff 3 , E. Joseph 2 , E. Landulfo 11 , K. McCann 3 , T. McGee 1 , L. Forno 12 , R. Herman 8 , R. Hoff 3 , E. Joseph 2 , E. Landulfo 11 , K. McCann 3 , T. McGee 1 , L. Miloshevich 5 , I. Restrepo 10 , F. Schmidlin 1 , B. Taubman 7 , L. Twigg 14 , A. Thompson 7 , D. Miloshevich 5 , I. Restrepo 10 , F. Schmidlin 1 , B. Taubman 7 , L. Twigg 14 , A. Thompson 7 , D. Venable Venable 2 2 , K. Vermeesch , K. Vermeesch 14 14 , H. Vömel , H. Vömel 6 6 , J. Wei , J. Wei 13 13 , C. Walthall , C. Walthall 9 9 1 NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771 1 NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771 2Howard University, Washington, DC 20059 2Howard University, Washington, DC 20059 3 University of Maryland, Baltimore County, Baltimore, Maryland 21250 3 University of Maryland, Baltimore County, Baltimore, Maryland 21250 4 NOAA/National Weather Service, Sterling, Virginia 20166 4 NOAA/National Weather Service, Sterling, Virginia 20166 5 National Center for Atmospheric Research, Boulder, CO 80305 5 National Center for Atmospheric Research, Boulder, CO 80305 6 Deutsches Wetterdienst, Lindenberg, Germany 6 Deutsches Wetterdienst, Lindenberg, Germany 7 Pennsylvania State University, University Park, PA 168027 7 Pennsylvania State University, University Park, PA 168027 8 Jet Propulsion Lab, Pasadena, CA 91109 8 Jet Propulsion Lab, Pasadena, CA 91109 9 U.S. Department of Agriculture, Beltsville, MD 20705 9 U.S. Department of Agriculture, Beltsville, MD 20705 10 Trinity University, Washington, DC 20017 10 Trinity University, Washington, DC 20017 11 Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, Brazil 11 Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, Brazil 12 University Mayor de San Andrés, La Paz, Bolivia 12 University Mayor de San Andrés, La Paz, Bolivia 13 NOAA/NESDIS Camp Springs, MD 13 NOAA/NESDIS Camp Springs, MD 14 Science Systems Applications, Inc., Lanham, MD 14 Science Systems Applications, Inc., Lanham, MD
Outline Outline • Howard University Beltsville Campus Howard University Beltsville Campus • NASA University Research Center NASA University Research Center – “ “Howard University Beltsville Center for Climate Howard University Beltsville Center for Climate System Observation” System Observation” – Weather and Atmospheric Composition thrusts Weather and Atmospheric Composition thrusts • WAVES 2006 – 2008 WAVES 2006 – 2008 • GRUAN GRUAN – GCOS Reference Upper Air Network site GCOS Reference Upper Air Network site
Aerial View of Site Office/Shops/Labs Latitude: +39º 03’ 15.117’’ Longitude: -76º 52’ 39.448’’ Elevation: 53.2 m Profiler MDE C-Band Radar Full Air Quality Radiation Bldg GPS (X2) Ceilometer MWR All Sky 31 Met Tower 8-levels T/RH Raman ALVIS/AT Flux, Net rad STROZ PDB Soil Moisture GLOW RSOS Chemistry CORS Lidar Laboratory
Aerial View of Site Office/Shops/Labs Latitude: +39º 03’ 15.117’’ Longitude: -76º 52’ 39.448’’ Elevation: 53.2 m Profiler MDE C-Band Radar A semi-urban field site mid-Atlantic, urban experiences a wide range of meteorological Full Air Quality conditions A major pollution corridor High population pressure. Very different than ARM sites Radiation Bldg GPS (X2) Comprehensive set of Observation Ceilometer MWR Systems All Sky Inter-agency and university collaboration Student involvement in all instruments 31 Met Tower and areas of research 8-levels T/RH Raman ALVIS/AT Flux, Net rad STROZ PDB Soil Moisture GLOW RSOS Chemistry CORS Lidar Laboratory
“Howard University Beltsville Center for Climate Howard University Beltsville Center for Climate “ System Observations” System Observations” • Recently awarded 5-yr NASA University Research Center Recently awarded 5-yr NASA University Research Center GLOW wind – Weather Thrust Weather Thrust lidar • GPM validation efforts GPM validation efforts – Quantify rain drop size distribution Quantify rain drop size distribution • Wind Lidar studies Wind Lidar studies – Rayleigh and Aerosol doppler lidar intercomparison statistics Rayleigh and Aerosol doppler lidar intercomparison statistics – Atmospheric Composition Thrust Atmospheric Composition Thrust • Aerosol Aerosol – Aerosol and cloud studies in the mixed rural/urban environment Aerosol and cloud studies in the mixed rural/urban environment • Tropospheric Ozone Tropospheric Ozone – Satellite validation and air quality Satellite validation and air quality • Water Vapor Variability and Temperature Water Vapor Variability and Temperature – Satellite validation, reference sounding and GRUAN Satellite validation, reference sounding and GRUAN
WAVES WAVES Water Vapor Variability Experiment – Satellite/Sondes Water Vapor Variability Experiment – Satellite/Sondes Upgraded Beltsville infrastructure to support field campaign Upgraded Beltsville infrastructure to support field campaign • activities activities >75 A-train overpasses covered under differing seasons >75 A-train overpasses covered under differing seasons • More than 300 sonde packages including more than 100 RS-92s, 30 CFHs, 60 More than 300 sonde packages including more than 100 RS-92s, 30 CFHs, 60 ECCs, and 6 additional PTU sensor technologies ECCs, and 6 additional PTU sensor technologies NWS operational sonde testing NWS operational sonde testing Multiple lidar measurements Multiple lidar measurements Vaisala RS-92 empirical correction Vaisala RS-92 empirical correction • NDACC Raman lidar characterization NDACC Raman lidar characterization • Aura Validation Papers Aura Validation Papers • TES : water vapor (Shepherd), ozone (Nassar), temperature (Herman) TES : water vapor (Shepherd), ozone (Nassar), temperature (Herman) – MLS : water vapor (V MLS : water vapor (Vö ömel) mel) HIRDLS : ozone (Nardi) HIRDLS : ozone (Nardi)
Correction of RS92 Mean Bias Error Relative to CFH, MWR, and ARM RH Probes Above: Uncorrected RS92 difference from 3 reference sensors: CFH (altitude profiles, and P-dependence in 10 RH intervals); ARM MWR (ratio of PW); and certified ARM RH probes. Below: Corrected RS92 mean accuracy is ±2% for all RH conditions from the surface to several km above the tropopause based on comparisons with same sensors as above. Miloshevich et. al., to be submitted to JGR
TES Retrieval and TES Retrieval and Radiance Studies Radiance Studies from WAVES_2006 from WAVES_2006 (Shepherd et. al.) (Shepherd et. al.)
TES Special Ops July 30, 2007 TES Special Ops July 30, 2007 • Raman Airborne Spectroscopic Raman Airborne Spectroscopic Lidar (RASL) flown in support of Lidar (RASL) flown in support of WAVES_2007 WAVES_2007 – IIP and ESTO supported IIP and ESTO supported • Cloudy conditions but fov by fov Cloudy conditions but fov by fov comparison in process comparison in process – Bob Herman/JPL, Mark Shepherd/AER Bob Herman/JPL, Mark Shepherd/AER RASL flew on King Air B200
TES Special Ops March 10, 2008 TES Special Ops March 10, 2008 Water vapor, aerosol and ozone lidars ran continuously during overpass. RS92 + ECC launched prior to overpass Preliminary retrievals show better agreement for ozone than water vapor
NDACC Raman Lidar Instrument Studies NDACC Raman Lidar Instrument Studies during WAVES_2008 during WAVES_2008 Lidar Sonde normalized ALVICE ALVICE 20 11 RS-92 versus 1 hr lidar – Recently admitted to NDACC Recently admitted to NDACC 17.5 as a mobile complementary as a mobile complementary 15 lidar system lidar system – CFH, Vaisala RS-92, CFH, Vaisala RS-92, 12.5 m SuomiNet GPS SuomiNet GPS k e 10 ALV Var d Ensemble comparison u Ensemble comparison t ALV Track i t l A ALV Raw 7.5 with corrected RS-92 with corrected RS-92 5 − Same correction as used in Same correction as used in MOHAVE-II data reduction MOHAVE-II data reduction 2.5 − Agreement within +/- 10% Agreement within +/- 10% Lidar Sonde Sonde % No evidence of increasing 40 20 0 20 40 No evidence of increasing moist bias with altitude. moist bias with altitude.
Long Averages from WAVES_2008 and Long Averages from WAVES_2008 and MOHAVE-II MOHAVE-II “ “Ensemble” comparisons from M-II and WAVES Ensemble” comparisons from M-II and WAVES WAVES_2008 MOHAVE-II 26 26 CFH 24 24 MLS RS92 Corr RS92 Corr MLS ALVICE 22 22 ALVICE JPL K m K m 20 20 e e d d u u t t i i t t 18 l l A 18 A 16 16 14 14 Mixing Ratio ppmv Mixing Ratio ppmv 2 4 6 8 10 2 4 6 8 10
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