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PIA00152: North Polar Cap Margin (natural color (top) and enhanced color (bottom))
Water ice mixed with dust form the residual north polar ice cap (brown color) in these images from NASA's Viking Orbiter 2.
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Viking 
 Spacecraft:  Viking Orbiter 2
 Instrument:  Visual Imaging Subsystem - Camera A 
 Product Size:  2048 x 1700 pixels (w x h) 
 Produced By:  U.S. Geological Survey 
 Addition Date:  1998-06-04 
 Primary Data Set:  Viking EDRs 
 Full-Res TIFF:  PIA00152.tif (9.474 MB)
 Full-Res JPEG:  PIA00152.jpg (467.8 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:

Water ice mixed with dust form the residual north polar ice cap (brown color). Seasonal frost of relatively pure ice (white color) partly blankets the polar deposits. A large trough, which is occupied by linear sand dunes (dark band), exposes polar layered deposits. The layered deposits hold a partial record of the history of atmospheric activity and climate of Mars. Center of picture is at latitude 82 degrees N., longitude 84 degrees W. Viking Orbiter Picture Numbers 82B11-12 (violet), 82B15-16 (green), and 82B17-18 (red) at 53 m/pixel resolution. Picture width is 106 km. North is 6 degrees counter-clockwise from top.

Image Credit:
NASA/JPL/USGS

Image Addition Date:
1998-06-04