摘要
本文应用有限区域数值预报模式，并根据不同的积云参数比方案对1994年第6号台风登陆后低压的移动规律及其对应降水分布进行了数值模拟试验，结果表明积云对流参数化对于台风移动及其降水分布影响极大，是作出台风暴雨预报的关键过程、而不同积云对流参数化又对登陆台风系统及降水预报有不同的影响。从本次试验看，对Kuo（197）对流参数化方案中湿润因子的改进使得预报24小时降水中心量值更接近实际。
In this paper, a limited-area numerical model with different cumulus parameterizationschemes is adopted to do experiments of a landed tropical cyclone process and its precipitation in Jurle 1994. It is indicated that the cumulus convective parameterization is of great importance to the landed tropical cyclon movement and its precipitation distributlon. It is akey process to the prediction of typhoon heavy rain. Howevcr, different Cumulus convectiveparameterization schemes have different effects on the landed tropical Gyclone and its precipitation. The Tnodification of Kuo (1974 )scheme leads to much better prediction result than anyother schemes mentioned in this paper.
出处
《气象科学》
CSCD
北大核心
1997年第1期28-35,共8页
Journal of the Meteorological Sciences
基金
自然科学基金!49375246
关键词
台风
暴雨
数值模拟试验
华南地区
Typhoon Process
Cumulus Parameterization
Numerical Experiments
