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Preliminary geologic evaluation of L-band radar imagery: Arkansas test siteThe relatively small angles of incidence (steep depression angles) of the L-band system provide minimal shadowing on terrain back-slopes and considerable foreshortening on terrain fore-slopes which sacrifice much of the topographic enhancement afforded by a more oblique angle of illumination. In addition, the dynamic range of the return from vegetated surfaces is substantially less for the L-band system, and many surface features defined primarily by subtle changes in vegetation are lost. In areas having terrain conditions similar to those of northern Arkansas, and where LANDSAT and shorter wavelength aircraft radar data are available, the value of the JPL L-band imagery as either a complimentary or supplementary geologic data source is not obvious.
Document ID
19780025701
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Macdonald, H. (Arkansas Univ. Fayetteville, AR, United States)
Waite, W. P. (Arkansas Univ. Fayetteville, AR, United States)
Date Acquired
September 3, 2013
Publication Date
November 1, 1977
Subject Category
Geophysics
Report/Patent Number
NASA-CR-157761
Accession Number
78N33644
Funding Number(s)
CONTRACT_GRANT: JPL-954697
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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