Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published July 1984 | Published
Journal Article Open

Spaceborne Radar Subsurface Imaging in Hyperarid Regions

Abstract

Imaging data acquired with the Shuttle Imaging Radar (SIR-A) over the hyperarid region of Egypt/Sudan clearly show surface penetration through the sand cover. Even though absorption does occur in the sand layer, surface refraction leads to a steeper incidence angle at the sand/bedrock interface resulting in a stronger backscatter. A simple backscatter model shows that for a low-loss thin sand layer the presence of the covering layer enhances the capability to image the subsurface interface, particularly at large incidence angles and HH polarization.

Additional Information

© 1984 IEEE. Manuscript received April 6, 1983; revised December 1, 1983. This work was performed at the Jet Propulsion Laboratory, California Institute of Technology, and was supported by NASA under contract NAS7-100. The authors acknowledge the help of R. Blom and W. Stromberg of JPL, who processed and enhanced the images shown in Fig. 2 and on the cover.

Attached Files

Published - 04157531.pdf

Files

04157531.pdf
Files (3.7 MB)
Name Size Download all
md5:a3e9eeb2291c0fe0ab86b429b5b8b457
3.7 MB Preview Download

Additional details

Created:
August 22, 2023
Modified:
October 20, 2023