The response of precipitation to aerosol through riming and melting in deep convective clouds

摘要: Abstract. We have used a 2-D axisymmetric, non-hydrostatic, bin-resolved cloud model to examine the impact of aerosol changes on development mixed-phase convective clouds. simulated clouds from four different sites (three continental and one tropical marine) with wide range realistic loadings initial thermodynamic conditions (a total 93 clouds). It is found that accumulated precipitation responds very differently changing in marine environments. For clouds, scaled reaches maximum for produce drop numbers at base between 180–430 cm −3 when other are same. In contrast, all show an increase deeper convection increasing loading. drops rapidly depleted by ice particles shortly after onset precipitation. The dominantly produced melting particles. riming rate increases loading low, decreases high. Peak intensities tend up concentrations (at base) ~500 then decrease further increases. This behaviour caused transition warm rain followed reduced efficiency high concentrations. response to, larger than, more humid environment low bases we find aerosol. driven rain. Our study suggests deep will be important contribution spatial temporal variability microphysics