Physics – Geophysics
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..114h&link_type=abstract
In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 114-116 (SEE N92-10728 01-91)
Physics
Geophysics
1
Ground Water, Hydrology Models, Mars (Planet), Mars Surface, Planetary Evolution, Unsteady Flow, Anisotropy, Equilibrium Flow, Finite Difference Theory, Flow Equations, Permafrost, Permeability, Seepage
Scientific paper
A global groundwater flow model was constructed for Mars to study hydrologic response under a variety of scenarios, improving and extending earlier simple cross sectional models. The model is capable of treating both steady state and transient flow as well as permeability that is anisotropic in the horizontal dimensions. A single near surface confining layer may be included (representing in these simulations a coherent permafrost layer). Furthermore, in unconfined flow, locations of complete saturation and seepage are determined. The flow model assumes that groundwater gradients are sufficiently low that DuPuit conditions are satisfied and the flow component perpendicular to the ground surface is negligible. The flow equations were solved using a finite difference method employing 10 deg spacing of latitude and longitude.
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