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Spaceborne Radar Subsurface Imaging in Hyperarid Regions

Elachi, Charles and Roth, Ladislav E. and Schaber, Gerald G. (1984) Spaceborne Radar Subsurface Imaging in Hyperarid Regions. IEEE Transactions on Geoscience and Remote Sensing, GE-22 (4). pp. 383-388. ISSN 0196-2892. doi:10.1109/TGRS.1984.350641.

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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.

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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.
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Issue or Number:4
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Official Citation:C. Elachi, L. E. Roth and G. G. Schaber, "Spaceborne Radar Subsurface Imaging in Hyperarid Regions," in IEEE Transactions on Geoscience and Remote Sensing, vol. GE-22, no. 4, pp. 383-388, July 1984. doi: 10.1109/TGRS.1984.350641
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93435
Deposited By: Tony Diaz
Deposited On:04 Mar 2019 19:22
Last Modified:16 Nov 2021 16:57

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