Simulation of aerosol effects on orographic clouds and precipitation using <scp>WRF</scp> model with a detailed bin microphysics scheme

Abstract

Abstract The effects on orographic clouds and precipitation of aerosol loading have been investigated by simulating an idealized mixed‐phase orographic cloud using the Weather Research Forecast ( WRF ) mesoscale model coupled with a detailed bin microphysics scheme. The results show that the total precipitation amount is reduced by 23.4% with increasing aerosol loading on the orographic clouds. Moreover, increasing aerosol loading will increase the number concentration of cloud droplets in small size range (&lt;19.84 µm in diameter) and lead to a decrease in the peak diameter from 12.5 to 9.92 µm .