11. The dusty case: stratospheric dust transport 

The dust is transported to the stratosphere  
by spontanious vertical mixing after 2nd day 
(Fig.8, Fig.10).

The vertical mixing is driven by vertical 
contrast of solar radiative heating (Fig.9)
associated with the steep gradient of dust 
distribution (Fig.10).


Fig.9: Vertical profile of time and horizontal mean heating rate for 
potential temperature. 


Fig.8: Distributions of dust mixing ratio (LT = 14:00 of 2nd day).  


Fig.10: Time development of horizontal mean dust mixing ratio.