Atmospheric Infrared Sounder (AIRS) Atmospheric Infrared Sounder - PowerPoint PPT Presentation

National Aeronautics and National Aeronautics and Space Administration Space Administration Jet Propulsion Laboratory Jet Propulsion Laboratory California Institute of Technology California Institute of Technology Pasadena, California Pasadena, California Atmospheric Infrared Sounder (AIRS) Atmospheric Infrared Sounder (AIRS) Project Status Project Status Thomas S. Pagano Thomas S. Pagano AIRS Project Manager AIRS Project Manager California Institute of Technology California Institute of Technology Jet Propulsion Laboratory Jet Propulsion Laboratory March 7, 2006 March 7, 2006 1 1

AIRS/AMSU Project Status AIRS/AMSU Project Status National Aeronautics and National Aeronautics and Space Administration Space Administration Agenda Agenda Jet Propulsion Laboratory Jet Propulsion Laboratory California Institute of Technology California Institute of Technology Pasadena, California Pasadena, California • • Mission Overview Mission Overview • • Science Team Science Team • • Instrument Status Instrument Status • • Spacecraft Status Spacecraft Status • • Standard Data Products Standard Data Products • • AIRS Users AIRS Users • • Research Products Research Products • • ROSES ROSES • • AIRS Project Activities AIRS Project Activities • • Conclusion Conclusion 2 2

National Aeronautics and National Aeronautics and Mission Overview Mission Overview Space Administration Space Administration Jet Propulsion Laboratory Jet Propulsion Laboratory California Institute of Technology California Institute of Technology Pasadena, California Pasadena, California • • EOS Aqua Spacecraft Launched May 4, 2002 EOS Aqua Spacecraft Launched May 4, 2002 • • AIRS: Atmospheric Infrared Sounder AIRS: Atmospheric Infrared Sounder – 2378 Infrared Channels from 3.7 2378 Infrared Channels from 3.7- -15.4 mm @ 13.5 km 15.4 mm @ 13.5 km – – λ/∆λ λ/∆λ > 1200 > 1200 – – 4 4 Vis Vis/NIR Channels @ 2 km /NIR Channels @ 2 km – • • AMSU: Advanced Microwave Sounding Unit AMSU: Advanced Microwave Sounding Unit – 15 Microwave Channels from 23 15 Microwave Channels from 23- -89 GHz @ 43 km 89 GHz @ 43 km – • • HSB: Humidity Sounder from Brazil HSB: Humidity Sounder from Brazil – 4 Microwave Channels from 150 – 4 Microwave Channels from 150- -183 GHz @ 13.5 km 183 GHz @ 13.5 km – – Failed February, 2003 Failed February, 2003 • • Objectives Objectives – Weather Forecasting: AIRS Already Achieved 6 hours in 6 days Weather Forecasting: AIRS Already Achieved 6 hours in 6 days – improvement in NH with NCEP Operational Model (JCSDA) improvement in NH with NCEP Operational Model (JCSDA) – Climate Studies: Atmospheric Hydrology Cycle Climate Studies: Atmospheric Hydrology Cycle – – Tropospheric Tropospheric Composition: O3, CO, CO2, CH4, Composition: O3, CO, CO2, CH4, … … – 3 3

National Aeronautics and National Aeronautics and AIRS Science Team AIRS Science Team Space Administration Space Administration Jet Propulsion Laboratory Jet Propulsion Laboratory California Institute of Technology California Institute of Technology Pasadena, California Pasadena, California New Members New Members Continuing Members Continuing Members Chahine, M. (TL) JPL Chahine, M. (TL) JPL Brewster, K. U of Oklahoma Brewster, K. U of Oklahoma Aumann, H. Aumann, H. JPL JPL Barker, D. Barker, D. NCAR NCAR Gautier, C. Gautier, C. UCSB UCSB Icano, M. AER Icano, M. AER Goldberg, M NOAA/NESDIS Goldberg, M NOAA/NESDIS McMillan, W. McMillan, W. UMBC UMBC Kalnay, E. Kalnay, E. UMD UMD Atlas, R. GSFC Atlas, R. GSFC LeMarshall, J. JCSDA Lord, S. NOAA/NCEP LeMarshall, J. JCSDA Lord, S. NOAA/NCEP McMillin, L. McMillin, L. NOAA/NESDIS NOAA/NESDIS Barnet, C. Barnet, C. NOAA/NESDIS NOAA/NESDIS Revercomb, H U of Wisconsin Revercomb, H U of Wisconsin Knuteson, R. U of Wisconsin Knuteson, R. U of Wisconsin Rosenkrantz, P. Rosenkrantz, P. MIT MIT Milosevich, L.. Milosevich, L.. NCAR NCAR Staelin, D. Staelin, D. MIT MIT Tobin, D. U of Wisconsin U of Wisconsin Tobin, D. Strow, L. UMBC Strow, L. UMBC Mlynczak, M Mlynczak, M LARC LARC Susskind, J. GSFC Susskind, J. GSFC International Partners International Partners Chedin, A. (Continuing) Chedin, A. (Continuing) CNRS CNRS Rizzi, R. (Continuing) U of Bologna Rizzi, R. (Continuing) U of Bologna Calheiros, R. (Continuing) Brazil/HSB Calheiros, R. (Continuing) Brazil/HSB McNally, T. ECMWF McNally, T. ECMWF 4 Saunders, R. UKMO 4 Saunders, R. UKMO

National Aeronautics and National Aeronautics and Instrument Status: Excellent Instrument Status: Excellent Space Administration Space Administration Jet Propulsion Laboratory Jet Propulsion Laboratory California Institute of Technology California Institute of Technology Pasadena, California Pasadena, California • • AIRS and AMSU Continue to AIRS and AMSU Continue to Operate Normally Operate Normally • • Excellent Radiometric, Spatial and Excellent Radiometric, Spatial and Spectral Stability from Both Spectral Stability from Both • • Small calibration changes detectable Small calibration changes detectable – 39 AIRS Channels more 39 AIRS Channels more “ “noisy noisy” ” than at than at – launch due to radiation in orbit. launch due to radiation in orbit. Recoverable Recoverable – M8 calibration at low temperatures M8 calibration at low temperatures – appears slightly off appears slightly off • • Excellent Reliability Excellent Reliability – Cooler B active drive level has been Cooler B active drive level has been very slowly very slowly rising for the last six rising for the last six – months due to normal ice accumulation, and not a cause for concern , and not a cause for concern months due to normal ice accumulation – Chopper drive current continues a slow decline after peaking las Chopper drive current continues a slow decline after peaking last April t April – 5 5

AIRS Spectral and Radiomety Radiomety Extremely Extremely AIRS Spectral and National Aeronautics and National Aeronautics and Space Administration Space Administration Stable Stable Jet Propulsion Laboratory Jet Propulsion Laboratory California Institute of Technology California Institute of Technology Pasadena, California Pasadena, California AIRS Frequencies Stable to <5 PPM AIRS Radiometric Performance: AIRS Frequencies Stable to <5 PPM AIRS Radiometric Performance: Knowledge to < 1 PPM Knowledge to < 1 PPM Stable to <8mK/Y Stable to <8mK/Y – – H. Aumann (JPL) H. Aumann (JPL) L. Strow Strow (UMBC) (UMBC) L. AIRS Frequenc AIRS IR Frequencies Extremely Stable AIRS IR Radiometry Extremely Stable Instrument Stability Fundamental to Weather and Climate Quality Observations SST2616 compared to RTG.SST at night -0.57K bias observed -0.37K bias expected First principles using Bias: Slope = 5mK/year NIST traceable calibration Stability better than 8 mK/Year difference between observed and expected bias due to cloud contamination Aumann et al 2004 “ “Evaluation of AIRS Data for Climate Applications Evaluation of AIRS Data for Climate Applications” ” Aumann et al 2004 SPIE 5570b Las Palmas September 2004 SPIE 5570b Las Palmas September 2004 H. H. Aumann 6 6

National Aeronautics and National Aeronautics and Space Administration Space Administration Jet Propulsion Laboratory Jet Propulsion Laboratory Aqua Aqua California Institute of Technology California Institute of Technology Pasadena, California Pasadena, California Spacecraft Spacecraft Status Status • • Aqua is generally healthy Aqua is generally healthy • • Three anomalies related to the power generation and storage Three anomalies related to the power generation and storage systems are open, but there has been no impact on operations systems are open, but there has been no impact on operations • • Given current trends, the primary life- -limiting resource is fuel for limiting resource is fuel for Given current trends, the primary life maneuvers maneuvers – – 69 kg are available for the mission, with much more available if the 69 kg are available for the mission, with much more available if the re- -entry reserve requirement can be relaxed entry reserve requirement can be relaxed re – So far we have used about 45 kg – So far we have used about 45 kg • About 20 were used in post • About 20 were used in post- -launch orbit adjustments launch orbit adjustments • • About 15 About 15 were used in a series of inclination adjustments in fall 2004 were used in a series of inclination adjustments in fall 2004 • About 10 have been used in all the MODIS lunar calibration roll • About 10 have been used in all the MODIS lunar calibration roll maneuvers and drag make up burns to date maneuvers and drag make up burns to date – Another series of inclination adjustments is planned for fall 2006 06 – Another series of inclination adjustments is planned for fall 20 7 7

National Aeronautics and National Aeronautics and Space Administration Space Administration Jet Propulsion Laboratory Jet Propulsion Laboratory California Institute of Technology California Institute of Technology Pasadena, California Pasadena, California AIRS Standard Products AIRS Standard Products 8 8