Page Comparison

Abstract

Two-moment microphysics schemes have been commonly used for cloud simulation in models across different scales – from large-eddy simulations to global climate models. These schemes have yielded valuable insights into cloud and precipitation processes. However, the size distributions are limited to two degrees of freedom, and thus the shape parameter is typically fixed or diagnosed. We have developed a three-moment approach for the rain category to predict the rain size distribution and thereby improve cloud microphysics representations for more accurate weather and climate simulations. The approach is applied to a new microphysics scheme with advanced ice microphysics parameterizations, i.e., the Predicted Particle Properties (P3) scheme.

...