HiRISE | Landforms on the South Polar Residual Cap (ESP_012941

NASA/JPL/University of Arizona

Landforms on the South Polar Residual Cap
ESP_012941_0930 Science Theme: Polar Geology

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This HiRISE image is located on the carbon-dioxide rich residual south polar ice cap near 86 degrees South, 353 degrees East. These rounded landforms evolve relatively quickly and erode into the surface of the ice cap (approximately 4-5 meters or 15 feet per year).

Their interesting shapes make for a striking appearance on the surface.

Written by: Sharon Wilson (13 May 2009)

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Acquisition date:	30 April 2009	Local Mars time:	7:02 PM
Latitude (centered):	-86.9 degrees	Longitude (East):	353.5 degrees
Range to target site:	245.3 km (153.3 miles)	Original image scale range:	24.5 cm/pixel (with 1 x 1 binning) so objects ~74 cm across are resolved
Map projected scale:	25 cm/pixel	Map projection:	POLAR STEREOGRAPHIC
Emission angle:	0.0 degrees	Phase angle:	66.3 degrees
Solar incidence angle:	66 degrees, with the Sun about 24 degrees above the horizon	Solar longitude:	257.0 degrees, Northern Autumn
For non-map projected products:
North azimuth:	216 degrees	Sub-solar azimuth:	39.9 degrees
For map-projected products
North azimuth:	263.5 degrees	Sub solar azimuth:	156.6 degrees

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All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible: Image: NASA/JPL/University of Arizona

Postscript
For information about NASA and agency programs on the Web, visit: http://www.nasa.gov. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems is the prime contractor for the project and built the spacecraft. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona. The image data were processed using the U.S. Geological Survey’s ISIS3 software.