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A backscatter model for a randomly perturbed periodic surfaceA backscatter model for a randomly perturbed periodic surface has been developed to explain backscatter measurements from a bare soil surface with row structure. It is assumed that the row-direction effect can be included by integrating the scattering coefficient due to the random roughness component over the underlying periodic component of the soil surface. It is found that the row-direction effect is strongly dependent upon the rate of change of this scattering coefficient with the local angle, and that the maximum difference between looking parallel and perpendicular to the row direction occurs around an incidence angle whose tangent is equal to the slope of the periodic surface at the inflection point.
Document ID
19830028889
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Ulaby, F. T.
(Kansas Univ. Center for Research, Inc. Lawrence, KS, United States)
Kouyate, F.
(Kansas Univ. Center for Research, Inc. Lawrence, KS, United States)
Fung, A. K.
(University of Kansas Center for Research, Inc., Lawrence KS, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: International Geoscience and Remote Sensing Symposium
Location: Washington, DC
Start Date: June 8, 1981
End Date: June 10, 1981
Accession Number
83A10107
Funding Number(s)
CONTRACT_GRANT: NAG5-30
Distribution Limits
Public
Copyright
Other

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