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Simulations of the general circulation of the Martian atmosphere. I - Polar processesNumerical simulations of the Martian atmosphere general circulation are carried out for 50 simulated days, using a three-dimensional model, based on the primitive equations of meteorology, which incorporated the radiative effects of atmospheric dust on solar and thermal radiation. A large number of numerical experiments were conducted for alternative choices of seasonal date and dust optical depth. It was found that, as the dust content of the winter polar region increased, the rate of atmospheric CO2 condensation increased sharply. It is shown that the strong seasonal variation in the atmospheric dust content observed might cause a number of hemispheric asymmetries. These asymmetries include the greater prevalence of polar hoods in the northern polar region during winter, the lower albedo of the northern polar cap during spring, and the total dissipation of the northern CO2 ice cap during the warmer seasons.
Document ID
Document Type
Reprint (Version printed in journal)
Pollack, James B.
(NASA Ames Research Center Moffett Field, CA, United States)
Haberle, Robert M.
(NASA Ames Research Center Moffett Field, CA, United States)
Schaeffer, James
(NASA Ames Research Center Moffett Field, CA, United States)
Lee, Hilda
(Sterling Software, Inc. Palo Alto, CA, United States)
Date Acquired
August 14, 2013
Publication Date
February 10, 1990
Publication Information
Publication: Journal of Geophysical Research
Volume: 95
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
Distribution Limits

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