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Dunefield

Target Name:  Mars
Spacecraft:  Viking orbiter
Produced by:  Calvin J. Hamilton
Copyright: © Calvin J. Hamilton
(Publisher Permission Request)

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This image shows several dune types which are found in the north circumpolar dunefield. This thumnail image shows a section of transverse dunes. The full image has a field of traverse dunes on the left and barchan dunes on the right with a transition zone inbetween. Transverse dunes are oriented perpendicular to the prevailing wind direction. They are long and linear, and frequently join their neighbor in a low-angle "Y" junction. Barchan dunes are crescent-shaped mounds with downwind-pointing horns. These dunes are comparable in size to the largest dunes found on the Earth.

This image is Copyright © by Calvin J. Hamilton. Any commercial/for-profit use of this image needs to be addressed to Calvin J. Hamilton.

Copyright © 1995-2013 by Calvin J. Hamilton. All rights reserved.