HR: 16:05h
AN: C42C-01    [PDF]
TI: Analysis of airborne and spaceborne hyperspectral data for the 2003 Cold Land Processes Experiment
AU: * Painter, T H
EM: tpainter@nsidc.org
AF: National Snow and Ice Data Center, 449 UCB, University of Colorado, Boulder, Boulder, CO 80309-0449 United States
AB: Airborne and spaceborne hyperspectral data were collected during the first and second intensive observation periods (IOP) of the 2003 NASA/NWS Cold Land Processes Experiment (CLPX) in the Rocky Mountains of Colorado. These data were acquired to provide calibration and validation of snow cover products from the CLPX core passive and active microwave remote sensing measurements. The airborne data were measured by the NASA/JPL Airborne Visible Infrared Imaging Spectrometer (AVIRIS) during both IOPs of 2003. The spaceborne data came from the NASA EO-1 Hyperion imaging spectrometer in the middle of each IOP. Field spectra of calibration targets were collected near the time of acquisitions with an Analytical Spectral Devices FR field spectroradiometer. Core field measurements in the CLPX included stratigraphy of snow grain size. The imaging spectrometer data were atmospherically corrected to apparent surface reflectance using the HATCH model. Field spectra from calibration targets were used to calibrate the apparent surface reflectance data. The apparent surface reflectance data were then analyzed for subpixel snow covered area, grain size, vegetation covered area, and rock covered area using the Multiple Endmember Snow Covered Area and Grain size model (MEMSCAG). This model is a coupling of Multiple Endmember Spectral Mixture Analysis (MESMA) and the radiative transfer model DISORT. Grain size retrievals were compared with core CLPX measurements of surface grain size.
DE: 1640 Remote sensing
DE: 1863 Snow and ice (1827)
DE: 3360 Remote sensing
SC: Cryosphere [C]
MN: 2003 Fall Meeting