PIA06290: Dunes with Frost
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: 672 x 1008 pixels (width x height)
Produced By: Malin Space Science Systems
Producer ID: MOC2-743
Full-Res TIFF: PIA06290.tif (678.3 kB)
Full-Res JPEG: PIA06290.jpg (138.6 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

31 May 2004
Springtime for the martian northern hemisphere brings defrosting spots and patterns to the north polar dune fields. This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows an example located near 76.7N, 250.4W. In summer, these dunes would be darker than their surroundings. However, while they are still covered by frost, they are not any darker than the substrate across which the sand is slowly traveling. Dune movement in this case is dominated by winds that blow from the southwest (lower left) toward the northeast (upper right). The picure covers an area about 3 km (1.9 mi) across and is illuminated by sunlight from the lower left.

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2004-05-31