Water in the upper martian surface at mid- and low-latitudes: presence, state, and consequences

Details Water in the upper martian surface at mid- and low-latitudes: presence, state, and consequences Water in the upper martian surface at mid- and low-latitudes: presence, state, and consequences

Apr 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004icar..168..318m&link_type=abstract

Icarus, Volume 168, Issue 2, p. 318-323.

Mathematics

Logic

32

Surface, Ice, Cosmochemistry

Scientific paper

Sublimation of water ice is more effective than evaporation of sorption water at the same temperature. Therefore, water in the form of ice must, over geologic time-scales, have left the upper martian surface (m-scale) at mid- and low-latitudes, leaving sorption water as a possible physical form of stable subsurface water. Adsorption water is ``liquid-like'' at these temperatures (in the sense of a 2D-liquid). This property is the reason for the specific importance of physisorbed water under martian conditions. It is shown that unfrozen adsorption water can cause numerous physical, chemical, and possibly also biological processes in the upper martian surface and may be responsible for a number of its properties.

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