登闽台风变化及2009年实况分析  

Variation Characteristics of Landfall Tropical Cyclones over Fujian and Factual Analysis in 2009

作　　者：许金镜[1] 温珍治[1] 池艳珍[1] 何芬[1] 

机构地区：[1]福建省气候中心,福州350001

出　　处：《福建气象》2009年第6期1-6,共6页

摘　　要：统计事实表明，台风登陆福建的位置存在逐步北抬之趋势，气候变暖、大气环流的变化与这一趋势有着一定的影响关系；气候变暖，为台风登陆福建位置偏北提供有利的背景；而极地涡旋强度偏弱、青藏高原冷热源偏暖、印缅槽强度偏弱、以及副高脊线位置偏北等大气环流主要成员的变化，为台风登陆福建位置偏北提供了有利的环境场。2009年7～8月间大气环流演变有利于台风登陆福建中北部。Statistics indicates that landing position of trend and has certain relationship with global warming and typhoon over Fujian has a gradual north-lifting the variation of the atmospheric circulation. Climate warming places a favorable background on the northward of landing position , and the evolution of key members of the atmospheric circulation such as the weaker intensity of polar vortex and India-Burma trough , the warmer Qinghai-Tibet Plateau heat source, as well as the more north of WPSH（abbreviation of Western Pacific Ocean Subtropical High） ridge than normal has provided critical environmental field. The evolution of atmospheric circulation between Juty and August is beneficial to the northerly landing of tropical cyclones in 2009.

关 键 词：登闽台风 北抬 统计分析 

分 类 号：P457.6[天文地球—大气科学及气象学] P425.47