9711号热带气旋温带转变过程分析  

A CHARACTERISTIC ANALYSIS OF TROPICAL CYCLONE 9711

作　　者：张晓慧[1] 盛立芳[2] 张红岩[1] 

机构地区：[1]北海舰队海洋水文气象中心 [2]中国海洋大学海洋环境学院,山东青岛266003

出　　处：《海洋湖沼通报》2004年第2期1-9,共9页Transactions of Oceanology and Limnology

摘　　要：本文利用天气学及诊断分析的方法 ,对 9711号热带气旋两次登陆前后物理量场的变化进行了分析 ,结果表明 :9711号热带气旋进入渤海后强度得到了加强 ,表现在暖中心的增强及中心气压的降低。中高纬冷空气的加入、对流层上层较强的辐散及正的涡度平流对气旋的再次发展起了关键作用。一些物理量场的分布直接影响着热带气旋的路径。The twice landing processes of Tropical Cyclone 9711 are analyzed by combining synoptic analysis and diagnostic analysis. The warmer core and the reducing centre-pressure show that Tropical Cyclone 9711 became stronger after entering the Bohai Sea. The cold air from mid-high latitudes, the stronger divergence in the upper troposphere and the positive vorticity advection played a significant role in the re-development of the cyclone. And the paths of the tropical cyclones were inqlnenced directly by the distribution of certain physical quantities.

关 键 词：热带气旋 天气学 诊断分析 物理量场 冷空气 辐散 涡度平流 路径 

分 类 号：P444[天文地球—大气科学及气象学] P457.8