4. Results: dusty case up previous next
4.b. Horizontal mean fields

Figure 12a shows the diurnal variation of the vertical profiles of horizontal mean temperature and potential temperature of the 6th day, when the amount of atmospheric dust reaches almost the equilibrium value. The profiles of horizontal mean temperature and potential temperature show fairly regular diurnal change, while that of atmospheric dust shows little change (Figure 11b). The depth of convection layer during daytime is about 5km, which is roughly a half of that in the dust-free case (Figure 3e). The reason for the decrease of the depth of convection layer is the stratospheric temperature increase due to the radiative heating caused by the dust absorption of solar radiation.

Figure 12a: Time development of the vertical profiles of horizontal mean temperature (left panel) and potential temperature (right panel) of the dusty case. Profiles are for every 4 hours from LT = 8:00 of the sixth day.


Other results of horizontal mean field


A numerical simulation of thermal convection in the Martian lower atmosphere.
Odaka, Nakajima, Ishiwatari, Hayashi,   Nagare Multimedia 2001
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