Seo, J. M., H. Lee, S. Moon, and J.-J. Baik, 2020: How mountain geometry affects
aerosol-cloud-precipitation interactions: part I. shallow convective clouds. J. Meteor. Soc. Japan, 98,
Early Online Release Graphical Abstract with highlights
Plain Language Summary: We examine how mountain upslope geometry controls aerosol effects on orographic precipitation from shallow warm convective clouds through idealized simulations using the WRF model with a bin microphysics scheme. The windward-width of the mountain controls advection timescale of liquid drops. Greater aerosol loading leads to reduction and downstream shift of precipitation. The aerosol effects are more clearly seen when the windward-width of the mountain is narrower.
- We study how mountain upslope and aerosol loading affect orographic precipitation.
- Warm convective clouds are simulated using WRF model with a bin microphysics scheme.
- Greater aerosol loading leads to reduction and downstream shift of precipitation.
- The narrower windward-width of the mountain, the clearer the aerosol effects are.