West Arabia Barchans
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West Arabia Barchans

July 19, 2005

This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows small barchan dunes on the floor of a crater in western Arabia Terra. Similar dunes are found in most of the larger craters of the region. The steepest slopes on these dunes, their slipfaces, point toward the west-southwest, indicating that dominant winds blow from the east-northeast (upper right).

Location near: 10.9°N, 2.8°W

Image width: ~3 km (~1.9 mi)

Illumination from: lower left

Season: Northern Autumn

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