Analysis of different weather research and forecasting radiation schemes' impact on the numerical simulation of a typical mesoscale convective weather in China

摘要

On April 17, 2011 from afternoon until well after sunset, a mesoscale convective system (MCS) from west to east affected most parts of Guangdong Province. We used 3.2 version of the weather research and forecasting (WRF) model to simulate the process of this event. Comparing the MCS simulations under different longwave and shortwave radiation parameterization schemes, we found that short-wave radiation scheme had tiny impact on the simulation results while the long-wave radiation scheme may have significant impact on MCS shape, size, basic weather characteristics and the surrounding environment characteristics of weather systems.