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Estimates of surface roughness derived from synthetic aperture radar (SAR) dataRadar remote sensing data provide a unique perspective of the earth's crust and the processes that have influenced its evolution. Physically based models are required, however, to relate the geophysical quantities being measured by the radar sensor to useful geologic information. In this study, synthetic aperture radar (SAR) data over the Cima volcanic field in the Mojave Desert of California are quantitatively connected with microtopography through inversion of a radar backscatter model. Changes in surface roughness inferred from the derived microtopography are modeled and found to be consistent with aeolian mantling as surfaces age. Estimated rates of aeolian deposition for the Cima area are compared to the Lunar Crater volcanic field in Nevada. Rates of deposition appear to be higher at Cima volcanic field, most likely because of its proximity to Soda Lake, the main source of the aeolian material.
Document ID
19920059668
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Evans, Diane L.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Farr, Tom G.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Van Zyl, Jakob J.
(JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
March 1, 1992
Publication Information
Publication: IEEE Transactions on Geoscience and Remote Sensing
Volume: 30
Issue: 2, Ma
ISSN: 0196-2892
Subject Category
Geophysics
Accession Number
92A42292
Distribution Limits
Public
Copyright
Other

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