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Multispectral satellite observations for arid land studiesMultispectral satellite data when properly calibrated and standardized can be used synergistically for a quantitative analysis of processes and surface characteristics, and for quantifying land surface change. Relationships among multispectral satellite data (visible reflectance, surface temperature and polarization difference of microwave emission at 37 GHz frequency) have been used to develop hypotheses concerning the relative sensitivity of these data to varied land surface characteristics, which needs to be verified by field observations. Radiative transfer models have also been developed to understand these multispectral data. Interannual variations of visible reflectance and polarization difference for the period 1982-1986 over the Sahel and the Sudan zones of Africa show a lagged response with respect to the rainfall deficit during recovery from drought, which needs to be understood in terms of biophysical parameters.
Document ID
19920059494
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Choudhury, Bhaskar J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 15, 2013
Publication Date
April 1, 1992
Publication Information
Publication: ISPRS Journal of Photogrammetry and Remote Sensing
Volume: 47
Issue: 2-3,
ISSN: 0924-2716
Subject Category
Earth Resources And Remote Sensing
Accession Number
92A42118
Distribution Limits
Public
Copyright
Other

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