Computer Science
Scientific paper
Aug 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mpse.conf..175t&link_type=abstract
International Conference on Mars Polar Science and Exploration, p. 175
Computer Science
Mars (Planet), Mars Surface, Polar Caps, Polar Regions, Dust, Models, Convection, Southern Hemisphere, Simulation
Scientific paper
Lifting of dust requires high near-surface winds. A major problem in understanding the Mars dust cycle centers on determining the mechanism(s) generating these winds. Potential mechanisms include small-scale convective vortices (dust devils), regional slope winds, albedo and/or thermal inertia contrast (seabreeze) winds, etc. The retreating edge of the south seasonal polar cap is the observed location of numerous local dust storms. Therefore the role of the strong temperature contrast between bare ground and the CO2 ice has long been suspected of being an important generator of dust-lifting winds. The acquisition of high quality topography for the south polar regions allows for the first time simulations of the south polar circulation to be undertaken. Of equal importance is the availability of high-resolution atmospheric models and high-speed computing facilities, which allow the circulation to be inferred from the topographic (and albedo and thermal inertia) data. Additional information is contained in the original extended abstract.
Richardson Mark I.
Toigo Anthony D.
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