Image:SafsafOasis SAR comparison.jpg

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Summary

Description

Two images of the Safsaf Oasis in the Sahara. The top image (taken by the Landat Thematic Mapper) is the surface. The bottom (taken by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) on board the Space Shuttle Endeavour on April 16, 1994) is the rock layer underneath, revealing black channels cut by the meandering of an ancient river.
Source

http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=16963
Date

not specified
Author

NASA/JPL Imaging Radar team.
Permission

Public domain
Other versions Larger, uncropped, unannotated version available at source URL.

Licensing

Public domain This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". ( NASA copyright policy page or JPL Image Use Policy).

Warnings:

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  • Materials from the Hubble Space Telescope may be copyrighted if they do not explicitly come from the STScI.
  • All materials created by the SOHO probe are copyrighted and require permission for commercial non-educational use.
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