PIA04101: West Arabia Barchans
NASA's Mars Global Surveyor shows small barchan dunes on the floor of a crater in western Arabia Terra on Mars. Similar dunes are found in most of the larger craters of this region.
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Mars Global Surveyor (MGS) 
 Spacecraft:  Mars Global Surveyor Orbiter
 Instrument:  Mars Orbiter Camera (MOC) 
 Product Size:  1672 x 3398 pixels (w x h) 
 Produced By:  Malin Space Science Systems 
 Producer ID:  MOC2-1154  
 Full-Res TIFF:  PIA04101.tif (5.688 MB)
 Full-Res JPEG:  PIA04101.jpg (589.6 kB)  

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Original Caption Released with Image:

16 July 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: width: ~3 km (~1.9 mi)
Illumination from: lower left
Season: Northern Autumn

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2005-07-16