中文摘要：

利用WRF中尺度数值模式对2008年1月26—29日中国南方一次雨雪过程进行数值模拟,并根据模拟结果对云微物理过程、逆温区和地面温度等环境条件进行了分析。结果表明：华南地区冻雨天气对应了两种云微物理结构：一种是由液水形成的降水元在下落过程中经过＂暖—冷＂层结形成冻雨,另一种是由冰晶、雪晶和液水形成的降水经过＂冷—暖—冷＂层结造成的。利用模式输出的层结、地面条件以及降水状况可以大致得到冻雨可能发生的范围。

英文摘要：

The WRF model is utilized to simulate the severe freezing rain and snow storm during 26—29,January 2008.The simulation results are used to diagnose the microphysical processes,inversion area and surface temperature condition.The results show that there are two kind of microphysical processes corresponding to the formation of freezing rain in southern China.One is that formed by the liquid precipitable cell which falls through the ＂warm-cold＂layer,and the other is that formed by ice crystal,snow,liquid water which fall through the＂cold-warm-cold＂layer.It is suggested that the freezing rain area could be predicted by composite consideration of stratification,surface condition and precipitation.