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Radar backscatter modellingThe terrain analysis software package was restructured and documentation was added. A program was written to test Johnson Space Center's four band scatterometer data for spurious signals data. A catalog of terrain roughness statistics and calibrated four frequency multipolarization scatterometer data is being published to support the maintenance of Death Valley as a radar backscatter calibration test site for all future airborne and spacecraft missions. Test pits were dug through sand covered terrains in the Eastern Sahara to define the depth and character of subsurface interfaces responsible for either backscatter or specular response in SIR-A imagery. Blocky sandstone bedrock surfaces at about 1 m depth were responsible for the brightest SIR-A returns. Irregular very dense CaCO3 cemented sand interfaces were responsible for intermediate grey tones. Ancient river valleys had the weakest response. Reexamination of SEASAT l-band imagery of U.S. deserts continues.
Document ID
19840015457
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schaber, G. G.
(Geological Survey Flagstaff, AZ, United States)
Kozak, R. C.
(Geological Survey Flagstaff, AZ, United States)
Gurule, R. L.
(Geological Survey Flagstaff, AZ, United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1984
Publication Information
Publication: NASA. Washington Rept. of Planetary Geology Program, 1983
Subject Category
Communications And Radar
Accession Number
84N23525
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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