Transport of dust to high northern latitudes in a Martian polar warming

Details Transport of dust to high northern latitudes in a Martian polar warming Transport of dust to high northern latitudes in a Martian polar warming

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....95.1381b&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 95, Feb. 10, 1990, p. 1381-1400.

Physics

11

Atmospheric Heating, Dust Storms, Mars Atmosphere, Polar Caps, Transport Theory, Atmospheric Circulation, Atmospheric Models, Particle Size Distribution, Planetary Meteorology, Planetary Waves, Mars, Polar Regions, Transport, Dust, Latitude, Heating, Atmosphere, Dynamics, Models, Numerical Methods, Experiments, Simulations, Water, Sedimentation, Deposition, Mixing, Distribution, Condensation, Cliimate, Precipitation, Dust Storms, Calculations

Scientific paper

The transport of dust in the Martian atmosphere into high northern latitudes as a result of a Martian polar-warming (and global-dust-storm) event was investigated using a simplified transport model in conjunction with a beta-plane dynamical model to simulate the transport of dust. Numerical experiments were performed to examine the influence of different warming dynamics and to assess the sensitivity of the transport to the initial dust distribution. Results indicate that substantial amounts of dust could be transported and deposited at high northern latitudes (extending to the pole) in a polar-warming event. The potential for the transport of water was also examined through simulations, with results indicating that large amounts of water could be transported to the north polar region in a warming, on the condition that substantial condensation and precipitation do not take place in the subpolar regions. However, the warmth of the Martian atmosphere during global dust storms makes the latter possible.

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