Fig. 8.

Cloud microphysical properties for the clean (black) and polluted conditions (red). (A) Effective radius of liquid drops in the convective core area, (B) effective radius of ice and snow particles, (C) fall velocity of ice and snow particles, and (D) terminal velocity of ice and snow particles in the updraft area. (E and F) The same as C and D but for the downdraft area. B–E are for the stratiform/anvil clouds. Fall velocity is the sum of air motions (upward positive) and the terminal velocity (i.e., free fall) of the hydrometeors (downward positive).