威海夏季两次相似路径台风暴雨个例对比分析  

Analysis and Comparison on Two Similar Typhoon Storm Cases at Weihai in Summer

作　　者：初军玲 宋华丽 CHU Jun- ling,SONG Hua-li(Meteorology Bureau of Wcndcng District in Weihai City,Wcihai 684400, Shandong, Chin)

机构地区：[1]山东省威海市文登区气象局,山东威海264400

出　　处：《湖北农业科学》2018年第6期47-54,共8页Hubei Agricultural Sciences

摘　　要：从环流形势分析、动力场诊断和热力场诊断等方面,将两次台风特征及其对威海影响的差异进行了对比分析。结果表明,影响两次台风暴雨降水强度差异的主要因子包括副热带高压的强度和西风槽与副热带高压系统的相互作用、输送到威海地区的水汽通量条件和相对湿度条件、台风环流场涡度和散度的配置、受台风登陆而增强的台风风场垂直速度成分、以及中高纬度干冷空气向台风内部的入侵。其中,较大的垂直速度对威海暴雨强度的加大有重要促进作用。The differences of their characters and their influence on Weihai area in the aspect of circulation pattern,dynamic physical field diagnosis and thermal field diagnosis were mainly analyzed and compared. The results showed that the main factors affecting the intensity difference of the two typhoons were the intensity of the subtropical anticyclone and the interaction of westerly trough and subtropical system,water vapor flux condition and relative humidity condition transported to Weihai area,configuration of vorticity and divergence in typhoon environmental field,the increasing vertical velocity along with the landing of typhoon,invasion of the dry and cold air into the interior of typhoon in middle and high latitudes areas and so on.Among them,the larger vertical speed was the most greatly associated with the intensity of storms in Weihai area.

关 键 词：台风 暴雨 对比分析 威海 

分 类 号：P458.11[天文地球—大气科学及气象学]