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Discrimination of geologic units in Death Valley using dual frequency and polarization imaging radar dataA simultaneous analysis of dual-frequency and dual-polarization radar imagery of an area located in the central part of Death Valley, Calif., is discussed. The radar imagery analyzed consists of like-polarized L-band, cross-polarized L-band, and like-polarized X-band imagery digitally combined and ratioed to enhance the variation in the backscatter cross section of different geologic units. It is shown that simultaneous analysis of such radar imagery leads to a synergism effect which, in the case of the area studied in Death Valley, allows nearly complete discrimination of surficial geologic units. Radar backscatter is found generally to increase with roughness from smooth Quaternary sand facies to rough and extremely rough Quaternary silty rock salt.
Document ID
19790027844
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Daily, M.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena; California, University Santa Barbara, Calif., United States)
Elachi, C.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Farr, T.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 9, 2013
Publication Date
October 1, 1978
Publication Information
Publication: Geophysical Research Letters
Volume: 5
Subject Category
Earth Resources And Remote Sensing
Accession Number
79A11857
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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