Abstract
The seasonal evolution of the H2O snow in the Martian polar caps and the dynamics of water vapor in the Martian atmosphere are studied. It is concluded that the variations of the H2O mass in the polar caps of Mars are determined by the soil thermal regime in the polar regions of the planet. The atmosphere affects water condensation and evaporation in the polar caps mainly by transferring water between the polar caps. The stability of the system implies the presence of a source of water vapor that compensates for the removal of water from the atmosphere due to permanent vapor condensation in the polar residual caps. The evaporation of the water ice that is present in the surface soil layers in the polar regions of the planet is considered as such a source. The annual growth of the water-ice mass in the residual polar caps is estimated. The latitudinal pattern of the seasonal distribution of water vapor in the atmosphere is obtained for the stable regime.
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Translated from Astronomicheskii Vestnik, Vol. 38, No. 6, 2004, pp. 497–503.
Original Russian Text Copyright © 2004 by Aleshin.
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Aleshin, V.I. Numerical simulation of seasonal dynamics of water vapor in the Martian atmosphere. Sol Syst Res 38, 434–440 (2004). https://doi.org/10.1007/s11208-005-0011-8
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DOI: https://doi.org/10.1007/s11208-005-0011-8