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气象:2007,33(11):9-15
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环境流场和“派比安”结构变化对其异常北抬路径影响的诊断分析
(1.广州中心气象台, 510080;2.广东省湛江市气象台)
Diagnosis of Northward Deflecting Track of Typhoon Prapiroon Caused by the Environmental Flow Field and Typhoon Structure Variation
(1.Guangzhou Central Meteorological Observatory,510080;2.;3.Zhanjiang Meteorological Office,Guangdong Province)
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投稿时间:2007-06-27    修订日期:2007-10-10
中文摘要: 利用NCEP的全球数据同化系统(GDAS)1°×1°分析资料、CIMSS微波亮温资料 等,对0606 号台风派比安的异常移动路径特征作了诊断分析。结果表明:“派比安”出现的两次异常北 抬路径与中纬度西风槽活动、热带西南季风、副热带高压以及热带气旋结构影响密切相关, 西风槽槽后经向风活动和台风最大风速中心轴向对台风未来移向有一定的指示意义。
中文关键词: 台风  路径  西风槽  西南季风  非对称结构
Abstract:The anomalous moving track of Typhoon Prapiroon is studied by using th e NCEP Global Data Assimilation System (GDAS) data and CIMSS microwave brightness tem perature data. The results show that the northward-deflecting track of Prapiroon is closely related to the mid latitude westerly trough, southwest monsoon and typhoon asymmetric structure itself. The meridional wind activities behind the w esterly trough and the directiron of maximum wind speed center have a certain in dication meaning for the moving direction of typhoon.
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基金项目:国家自然科学基金项目(编号:40575021)和广东省科技计划重点引导项目(编号:2005B326 01008)共同资助
引用文本:
吴乃庚,林良勋,李天然,黄忠,陈理森,2007.环境流场和“派比安”结构变化对其异常北抬路径影响的诊断分析[J].气象,33(11):9-15.
Wu Naigeng,Lin Liangxun,Li Tianran,Huang Zhong,Chen Lisen,2007.Diagnosis of Northward Deflecting Track of Typhoon Prapiroon Caused by the Environmental Flow Field and Typhoon Structure Variation[J].Meteor Mon,33(11):9-15.