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The impact of spectral emissivity on the measurement of land surface temperature from a satelliteThe effect of emissivity on the measurement of land surface (LS) temperature from satellite radiances using the split-window method is investigated. Formulas are derived to relate the LS temperatures to two brightness temperatures measured from space in the AVHRR 4 and AVHRR 5 channels, and their accuracies are discussed. Results indicate that to determine LS temperatures from a satellite, the spectral emissivity must be known to an accuracy on the order of 0.005 for the average and 0.0007 for the difference in order to obtain an error of the order of 0.5 K.
Document ID
19880032584
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Becker, F.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1987
Publication Information
Publication: International Journal of Remote Sensing
Volume: 8
ISSN: 0143-1161
Subject Category
Earth Resources And Remote Sensing
Accession Number
88A19811
Distribution Limits
Public
Copyright
Other

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