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Based on the results of our numerical simulations presented so far, we
now discuss the following issues. Because the Viking Lander 1 observed
wind and temperature at a height of 1.6 m, it may be informative to
compare its results with data obtained at the lowest level of our
numerical model (approximately 1.5 m). Our numerical simulations show
that surface wind associated with the kilometer-size thermal
convection of the dust-free case can lift dust from the
surface. Therefore, we suggest that it is necessary to incorporate the
effect of kilometer-size thermal convection into Martian GCMs in order
to better simulate the weather conditions of Mars, i.e., the emergence
of dust storms.
- Comparison with Observation Results
- Treatment of Convection in a GCM
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