PIA03751: Sand Dunes in Kaiser Crater
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: 836 x 1051 pixels (width x height)
Produced By: Malin Space Science Systems
Producer ID: MOC2-306
Primary Data Set: MGS EDRs
Full-Res TIFF: PIA03751.tif (796.8 kB)
Full-Res JPEG: PIA03751.jpg (130.2 kB)

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Original Caption Released with Image:
Full size (780 KBytes)
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) high resolution image shows a field of dark sand dunes on the floor of Kaiser Crater in southeastern Noachis Terra. The steepest slopes on each dune, the slip faces, point toward the east, indicating that the strongest winds that blow across the floor of Kaiser move sand in this direction. Wind features of three different scales are visible in this image: the largest (the dunes) are moving across a hard surface (light tone) that is itself partially covered by large ripples. These large ripples appear not to be moving--the dunes are burying some and revealing others. Another type of ripple pattern is seen on the margins of the dunes and where dunes coalesce. They are smaller (both in their height and in their separation) than the large ripples. These are probably coarse sediments that are moving with the dunes. This picture covers an area approximately 3 km (1.9 mi) across and is illuminated from the upper left.
Image Credit:
NASA/JPL/MSSS

Image Addition Date:
2002-04-23