A coupled subsurface-boundary layer model of water on Mars

Details A coupled subsurface-boundary layer model of water on Mars A coupled subsurface-boundary layer model of water on Mars

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jgr....98.3319z&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 98, no. E2, p. 3319-3337.

Physics

48

Diurnal Variations, Mars Atmosphere, Mars Surface, Planetary Boundary Layer, Water, Atmospheric Models, Mathematical Models, Optical Thickness, Regolith, Mars, Water, Model, Subsurface, Boundaries, Layers, Atmosphere, Flux, Regolith, Parameters, Pressure, Albedo, Abundance, Diurnal Variations, Humidity, Thermal Effects, Insolation, Opacity, Dust, Stress, Cycles, Calculations, Water Vapor, Inertia, Latitude, Porosity, Diffusion, Distribution, Mixing, Advection, Saturation

Scientific paper

A 1D numerical model of the exchange of H2O between the atmosphere and subsurface of Mars through the PBL is employed to explore the mechanisms of H2O exchange and to elucidate the role played by the regolith in the local H2O budget. The atmospheric model includes effects of Coriolis, pressure gradient, and frictional forces for momentum: radiation, sensible heat flux, and advection for heat. It is suggested that in most cases, the flux through the Martian surface reverses twice in the course of each sol. The effects of surface albedo, thermal inertia, solar declination, atmospheric optical depth, and regolith pore structure are explored. It is proposed that higher thermal inertia forces more H2O into the atmosphere because the regolith is warmer at depth.

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