Dune Variety

Scaled Image

Image Credit: NASA/JPL/ASU

About this image

One topic of Image of the Day 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 image of the north polar erg was taken at 80 degrees North latitude during Northern summer. This image uses lower resolution to provide contiguous cover of a large area. The dunes have very little remaining frost cover.

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

Context

Image ID: 
V13013004 (View data in Mars Image Explorer)
80.8403
184.613
13013
2004-11-19 13:49
Fri, 2005-04-08
VIS
512 pixels (20 km)
7584 pixels (300 km)
0.039603 km/pixel
0.03989 km/pixel

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