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Gully and Dunes
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Gully and Dunes

December 2, 2011
An earlier observation of the same area shows a very interesting feature: a defrosting gully and dunes, with distinct defrosting spots along the gully channel.

Since HiRISE can re-image certain areas over time, this area seems like a worthwhile place to monitor the defrosting process and hopefully gain a deeper understanding of it. This observation was taken at the end of southern summer and will serve as a baseline for observing the gully defrosting next southern spring.

This caption is based on the original science rationale.

Written by: HiRISE Science Team

Credits: NASA/JPL/University of Arizona


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