A MODIFIED CUMULUS PARAMETERIZATION SCHEME AND ITS APPLICATION IN THE SIMULATIONS OF THE HEAVY PRECIPITATION CASES  

作　　者：平凡 唐细坝 殷蕾 

机构地区：[1]Laboratory of Cloud-Precipitation Physics and Severe Storms(LACS),Institute of Atmospheric Physics [2]Department of Remote Sensing,Nanjing University of Information Science and Technology

出　　处：《Journal of Tropical Meteorology》2016年第3期433-444,共12页热带气象学报（英文版）

基　　金：National Basic Research Program of China(2013CB430105);National Natural Science Foundation of China(41405059,40775038,40875031,40975036)

摘　　要：According to the characteristics of organized cumulus convective precipitation in China,a cumulus parameterization scheme suitable for describing the organized convective precipitation in East Asia is presented and modified.The Kain-Fristch scheme is chosen as the scheme to be modified based on analyses and comparisons of simulated precipitation in East Asia by several commonly-used mesoscale parameterization schemes.A key dynamic parameter to dynamically control the cumulus parameterization is then proposed to improve the Kain-Fristch scheme.Numerical simulations of a typhoon case and a Mei-yu front rainfall case are carried out with the improved scheme,and the results show that the improved version performs better than the original in simulating the track and intensity of the typhoons,as well as the distribution of Mei-yu front precipitation.According to the characteristics of organized cumulus convective precipitation in China, a cumulus parameterization scheme suitable for describing the organized convective precipitation in East Asia is presented and modified. The Kain-Fristch scheme is chosen as the scheme to be modified based on analyses and comparisons of simulated precipitation in East Asia by several commonly-used mesoscale parameterization schemes. A key dynamic parameter to dynamically control the cumulus parameterization is then proposed to improve the Kain-Fristch scheme. Numerical simulations of a typhoon case and a Mei-yu front rainfall case are carded out with the improved scheme, and the results show that the improved version performs better than the original in simulating the track and intensity of the typhoons, as well as the distribution of Mei-yu front precipitation.

关 键 词：CUMULUS PARAMETERIZATION SCHEME ORGANIZED CONVECTION Kain-Fristch SCHEME PRECIPITATION simulation 

分 类 号：P444[天文地球—大气科学及气象学]