ICE CRYSTALS GROW BY
--Deposition, because esw>esi , vapor is transported from
--By collisions between super-cooled cloud drops and ice crystals
Experimentally determined variation of the mass of ice crystals growing by diffusion of vapor in a water saturated environment, as a function of growth time and temperature. (From Ryan et al., 1976; by courtesy of the American Meteorological Society, and the authors.)