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ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites Calibration Status for Current Instruments and Plans for Future Instruments: AVHRR,

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Presentation on theme: "ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites Calibration Status for Current Instruments and Plans for Future Instruments: AVHRR,"— Presentation transcript:

1 ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites Calibration Status for Current Instruments and Plans for Future Instruments: AVHRR, Landsat, MODIS, VIIRS, APS, ABI B. Guenther 1 and Brian Markham 2 1 University of Maryland, Baltimore County Goddard Earth Science and Technology Center 2 NASAs Goddard Space Flight Center, Mail Code 614.4, Greenbelt, MD 20771

2 ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites AVHRR Climate Applications –Vegetation Indices –ISCCP (cloud) products Primary Calibration Strategy –Prelaunch –Vicarious on-orbit Band No. NOAA 6, 8, 10 NOAA 7, 9, 11, 12, 14 NOAA 15, 16, 17, Wavelength in micrometers Ascending Node 1340 (11), 1400/1420/1430 (7, 9, 14, 16, 18), 1930 (6, 8, 10, 15), 2200 (17)

3 ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites Landsat MSS Landsat ; Landsat ; Landsat ; Landsat ; Landsat VNIR Bands - 80 meters 185 km swath 18 day repeat cycle (Landsat 1-3) 16 day repeat cycle (Landsat 4-5) equatorial crossing Climate Applications Regional land cover land use change & carbon consequences Regional biomass change & carbon consequences Primary Calibration Strategy Internal lamps on scene-by-scene basis

4 ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites Landsat TM/ETM+ Landsat-4 TM (1982-3; ), Landsat-5 TM (1984->), Landsat-7 ETM+ (1999->)* Climate Applications Regional land cover land use change & carbon consequences Regional biomass change & carbon consequences Primary Calibration Strategy L4/L5 TM Initial: Internal lamps on scene-by-scene basis Current L5 TM : Reconstructed history based on lamps, vicarious, outgassing model and ETM+ Xcal 5/2003 -> L7 ETM+ Pre-launch calibration; monitored by on-board lamps, diffuser and vicarious calibration 4 VNIR; 2 SWIR bands m 1 Panchromatic - (ETM+) m {1 TIR m (ETM+); 120 m (TM) } equatorial crossing 185 km swath; 16-day repeat L7- seasonal global cloud-free coverage * SLC failure May 2003

5 ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites LDCM Sensor(s)* Climate Applications Regional land cover land use change & carbon consequences Regional biomass change & carbon consequences Primary Calibration Strategy Internal Lamps Lunar views Solar diffuser 5 VNIR bands - 30 m 3 SWIR bands including cirrus detection band - 30 m 1 Panchromatic band - 15 m {Possible thermal band option} * Based on draft documents on LDCM website 5/06, subject to change

6 ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites Landsat Climate Change Applications Landsat Ecosystem Disturbance Adaptive Processing System (LEDAPS) North Americans forest disturbance and surface reflectance mapping using Landsat data for North American Carbon Program daps_NorthAmerica.html daps_NorthAmerica.html Land Cover Land Use Change (LCLUC) studies Forest Biomass and Land-Use Change in Central Africa: Reducing Regional Carbon Cycle Uncertainty Comparative Studies on Carbon Dynamics in Disturbed Forest Ecosystems: Eastern Russia and Northeastern China Statewide Landcover and Trees Study (SLATS): Monitoring land cover change and greenhouse gas emissions in Queensland, AU html html National Carbon Accounting System (NCAS) comprehensive picture of land cover change over the Australian continent for the past 30 years using Landsat data. /landcover.html /landcover.html

7 ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites Landsat-7 ETM+ VIS/NIR Calibration Strategy Radiometric Calibration Hardware Internal lamps --every scan Primary % of scenes Secondary - 0.1% of scenes Solar diffuser - Full Aperture Solar Calibrator - monthly Partial Aperture Solar Calibrator- daily Calibration Working Group NASA USGS 2 University Vicarious Calibration Teams {2 thermal band vicarious calibration teams} Twice Yearly meetings

8 ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites MODIS Climate Applications Advances CZCS and AVHRR –nLw, Chlor_a, aerosols, clouds, H2O vapor, vegetation indices, snow/ice, land cover/dynamics Primary Calibration Strategy –Full aperture Solar Diffuser with SDSM –Spectro-radiometric calibration assembly for spatial and spectral partial aperture characterization –Lunar –Vicarious techniques

9 ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites VIIRS for NPOESS Climate Applications –Build on MODIS data set heritage Primary Calibration Strategy –Spectralon Solar Diffuser (100% Earthshine rejection) –Solar Diffuser Stability Monitor (8 bands) –Lunar observations

10 ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites Aerosol Polarimeter Sensor Shown is the RSP Climate ApplicationsPrimary Calibration Strategy On-orbit calibration approaches Data Heritage Research Scanning Polarimeter, POLDER, MODIS, Sun Photometer network [EOSP] APS Science Requirements Aerosol refractive index, single scattering albedo, and shape Aerosol optical thickness Aerosol particle size Coverage Polarimetry and radiometry between 400 and 2300 nm Along track scanning, narrow swath A-train position

11 ASIC 3 conference/Cal Status Vis/NIR Current and Future Satellites Advanced Baseline Imager for GOES-R Climate Applications –Aerosols, vegetation, clouds (& thin cirrus), fire/burn scar detection, snow/ice Primary Calibration Strategy –On-orbit, sun-activated target –Proposed special target, Swales development (Bremmer) 6 Spectral Bands, resolution of 0.5 to 2 km Full disk or CONUS in 5 min, 30 s mesoscale images


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