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Microwave Brightness Of Land Surfaces From Outer SpaceMathematical model approximates microwave radiation emitted by land surfaces traveling to microwave radiometer in outer space. Applied to measurements made by Scanning Multichannel Microwave Radiometer (SMMR). Developed for interpretation of microwave imagery of Earth to obtain distributions of various chemical, physical, and biological characteristics across its surface. Intended primarily for use in mapping moisture content of soil and fraction of Earth covered by vegetation. Advanced Very-High-Resolution Radiometer (AVHRR), provides additional information on vegetative cover, thereby making possible retrieval of soil-moisture values from SMMR measurements. Possible to monitor changes of land surface during intervals of 5 to 10 years, providing significant data for mathematical models of evolution of climate.
Document ID
19910000198
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Kerr, Yann H.
(Caltech)
Njoku, Eni G.
(Caltech)
Date Acquired
August 14, 2013
Publication Date
May 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 5
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
NPO-17739
Accession Number
91B10198
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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