Computer Science
Scientific paper
Jun 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982icar...50..322h&link_type=abstract
(Workshop on Quasi-Periodic Climatic Changes on Earth and Mars, Moffett Field, CA, Feb. 24-26, 1981.) Icarus, vol. 50, May-June
Computer Science
116
Atmospheric Circulation, Atmospheric Models, Dust Storms, Mars Atmosphere, Meridional Flow, Atmospheric Heating, Carbon Dioxide, Radiation Absorption, Temperature Distribution, Viking Spacecraft, Wind Direction
Scientific paper
A zonally symmetric primitive equation modelled on a sphere is used to numerically simulate the Martian atmosphere's response to various dust loads, as well as the ability of its meridional circulation to transport dust globally, where the circulation is driven by heating due to the absorption of solar and IR radiation by dust and CO2, in addition to sensible heat exchange with the ground. A preliminary experiment shows the model distribution of winds and temperature to compare favorably with zonally averaged values from a general circulation model. Experiments simulating the evolution of global dust storms show that dust is effectively transported by the zonal mean circulation, which rapidly intensifies as the dust spreads, and that the basic structure of the circulation is relatively insensitive to details, being mostly dependent on the heating of the tropical and subtropical atmosphere.
Haberle Robert M.
Leovy Conway B.
Pollack James B.
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