Ganges Chasma Sand Sheet

Scaled Image

Image Credit: NASA/JPL/ASU

About this image

One Image of the Day topics was the north polar sand sea and isolated dune fields at lower latitudes. Sand seas on Earth are often called 'ergs', an Arabic name for dune field. A sand sea differs from a dune field in two ways: 1) a sand sea has a large regional extent, and 2) the individual dunes are large in size and complex in form. This sand sheet is located in the Ganges Chasma portion of Valles Marineris. As with yesterday's image, note that the dune forms are seen only at the margin and that the interior of the sand sheet at this resolution appears to completely lack dune forms.

Please see the THEMIS Data Citation Note for details on crediting THEMIS images. 


Image ID: 
V11923001 (View data in Mars Image Explorer)
2004-08-21 18:28
Wed, 2005-04-13
1024 pixels (18 km)
3648 pixels (64 km)
0.017578 km/pixel
0.017706 km/pixel


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