4. Results: Dusty Case   b. Diurnal Changes of Horizontal Mean Fields
4.b.ii. Ground and surface temperature Figure 12c shows the diurnal changes for the vertical profiles of horizontal mean ground temperature, horizontal mean surface temperature, and horizontal mean atmospheric temperature at approximately 1.5 m on day 6 of the dusty case. Compared to the dust-free case, amplitude of the diurnal change of surface temperature is about 10 K smaller and surface temperature is 5 K higher (Figure 3c). Figure 12c: (Left panel) Diurnal change of the vertical profile of horizontal mean ground temperature. Profiles are every 4 hours beginning at 8:00 LT on day 6 of the dusty case. The number on each line indicates local time. Vertical axis is normalized by the diurnal skin depth. (Right panel) Diurnal changes of horizontal mean surface temperature (red line) and atmospheric temperature (blue line) at approximately 1.5 m every 1 hour on day 6.
A numerical simulation of thermal convection in the Martian lower atmosphere with a two-dimensional anelastic model