Physics
Scientific paper
Aug 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mpse.conf..127m&link_type=abstract
International Conference on Mars Polar Science and Exploration, p. 127
Physics
Mars (Planet), Mars Surface, Planetary Geology, Ice, Polar Regions, Surface Roughness Effects, Regolith, Simulation, Temperature Distribution, Water Vapor, Albedo
Scientific paper
We investigate the influence of a shallow trench on the local temperature distribution and the ice content in the Martian regolith. The model used in this paper is an extension which was used to analyze heat diffusion and to calculate the temperature distribution in the vicinity of a small surface trench. In addition, our model now includes water vapour diffusion through the pores of the ground regolith, water adsorbtion an the mineral grains and time evolution of the water ice in the regolith. Our simulations predict an accumulation of sub-surface ice close to the colder wall of the trench, as well as below its bottom. This is due to different exposure of trench surfaces to the solar and scattered radiation. We also expect changes of average surface albedo due to the diurnal frost formation. Additional information can be found in original extended abstract.
Kossacki Konrad J.
Markiewicz Wojciech J.
Uwe Keller Horst
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