Comparisons of Three Convection Parameterization Schemes in Regional Climate Simulations
区域气候模拟中多种对流参数化方案的比较研究

By using Betts-Miller, Kuo-Anthes and Grell cumulus convection parameterization schemes in regional climate model(RegCM2), two regional climate simulation experiments of the sum- mers of 1991 and 1994 in East-Asia monsoon region are completed. We analyse and compare the simulation ability of three parameterization schemes to the distribution of the total rainfall from May to July, the major periods of heavy rainfall, variations of the rain-band location and the fundamental me- teorology element fields, and give out the results of statistical verifications between the simulations and the observations of the rainfall and the fundamental elements. The comparisons indicate that the simulation ability of Betts-Miller scheme is superior to the other two's.