Redistribution of water in terrestrial soils at subfreezing temperatures: A review of processes and their potential relevance to Mars

Details Redistribution of water in terrestrial soils at subfreezing temperatures: A review of processes and their potential relevance to Mars Redistribution of water in terrestrial soils at subfreezing temperatures: A review of processes and their potential relevance to Mars

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jgre..108.8041m&link_type=abstract

Journal of Geophysical Research (Planets), Volume 108, Issue E4, pp. GDS 22-1, CiteID 8041, DOI 10.1029/2002JE001873

Physics

7

Hydrology: Frozen Ground, Planetology: Solar System Objects: Mars, Planetology: Solar System Objects: Comparative Planetology

Scientific paper

Any study of water behavior in the Martian regolith should begin with an examination of our current understanding of subsurface water in terrestrial cold regions. The terrestrial analog provides a wealth of readily available information to help formulate and test new ideas about possibilities on Mars. This paper discusses the major mechanisms driving the phenomenal ability of capillary media to redistribute moisture when freezing. It examines both thermally induced and freezing-induced redistribution of moisture, the magnitude of which can vastly exceed the transport expected from Fickian diffusion alone. If the Martian crust is truly water-rich, then these processes (in response to transient thermal disturbances caused by impacts, volcanic and magmatic activity, changes in climate, and potential future human activities) may induce substantial changes in the local distribution of subsurface ice.

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