Probing for Ground Ice on Mars with Impact Craters

Details Probing for Ground Ice on Mars with Impact Craters Probing for Ground Ice on Mars with Impact Craters

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..620b&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.620

Physics

Scientific paper

Ground ice exists less than a meter beneath a substantial fraction of the martian surface. Through analysis of images from the Context Camera (CTX) and the High-Resolution Imaging Science Experiment (HiRISE) hundreds of newly-formed impact craters have also been detected. Thirteen of these craters have excavated ground ice that appears surprisingly low in dust. Ice at some sites has faded, most likely due to build up of a sublimation lag; however, there are sites where the brightness of the exposed material has not changed or has even increased. We report on these natural probes of the martian ice table and their implications for the nature and extent of ground ice on Mars.

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