Sublimation Model for Formation of Residual Cap Depressions

Details Sublimation Model for Formation of Residual Cap Depressions Sublimation Model for Formation of Residual Cap Depressions

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mpse.conf...16b&link_type=abstract

International Conference on Mars Polar Science and Exploration, p. 16

Computer Science

Sublimation, Polar Caps, Mars (Planet), Mars Surface, Planetary Geology, Mars Global Surveyor, Computerized Simulation, Terrain

Scientific paper

The Mars Global Surveyor (MGS) spacecraft, through the Mars Orbital Camera (MOC), has provided unprecedented views at high resolution of the southern residual polar cap. Since the orbit is not quite polar (3 deg off) there is a ring at 87 south which the spacecraft must pass tangent to in every revolution about the planet. Hence there is an extremely well imaged ring at this latitude that intersects the residual cap. Several terrain types unique to this area are apparent. Some of the most unusual geomorphic features revealed are circular/quasicircular depressions which are steep walled and flat floored, with a characteristic depth of approx. 10 m and a broad range of lateral sizes. We have developed a sublimation driven model to explain the formation of these features. Additional information is contained in original extended abstract.

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