DocumentCode
1019754
Title
Optimum Radar Parameters for Mapping Soil Moisture
Author
Ulaby, Fawwaz T. ; Batlivala, Percy P.
Author_Institution
University of Kansas Center for Research, Inc., Remote Sensing Laboratory, Lawrence, KS 66045
Volume
14
Issue
2
fYear
1976
fDate
4/1/1976 12:00:00 AM
Firstpage
81
Lastpage
93
Abstract
The radar response to soil moisture content was experimentally determined for each of three bare fields with considerably different surface roughnesses at eight frequencies in the 2-8 GHz band for HH and VV polarizations. Analysis of the data indicates that the effect of roughness on the radar backscattering coefficient can be minimized by proper choice of the radar parameters. If, in addition, sensitivity to soil moisture content and system design constraints are considered, the following radar parameters are recommended for an operational soil moisture mapper: Radar Signal Frequency: 4 GHz Angle of Incidence Range: 7°-15° from nadir Signal Polarization: HH or VV. The corresponding sensitivity is about 0.25 dB/.01 g/cm3.
Keywords
Backscatter; Frequency; Geoscience; Polarization; Rough surfaces; Soil moisture; Spaceborne radar; Surface roughness; Transmitting antennas; Vegetation mapping;
fLanguage
English
Journal_Title
Geoscience Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9413
Type
jour
DOI
10.1109/TGE.1976.294414
Filename
4071777
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