近海北上热带气旋特征  

Characteristics of the northward tropical cyclones over the East China Sea

作　　者：朱业[1,2] 陆建新[2] 卢美[2,3] 

机构地区：[1]浙江大学地球科学系,浙江杭州310027 [2]浙江省海洋监测预报中心,浙江杭州310007 [3]浙江大学建筑工程学院,浙江杭州310058

出　　处：《海洋预报》2012年第5期23-28,共6页Marine Forecasts

摘　　要：通过研究分析1949—2011年在125°E以西近海北上,到达35°N以北登陆的热带气旋特征,总结出该类型热带气旋全部生成于125°—150°E,10°—29°N之间;出现此类型热带气旋时一般处于拉尼娜年,西太平洋副高强度较弱,副高西伸脊点偏东,副高脊线位置偏北;该类型热带气旋移动到125°E附近时,西风槽位置一般维持在110°—115°E,槽底位于25°—35°N等特征。This paper summarize the main features of the tropical cyclones （TCs） which move northward over the East China Sea since 1949. These kinds of TCs are chosen according to two criteria： （1） moving northward along the offshore region to the west of 120°E; （2） reaching at the north of 35°N before landfall. All the TCs form over the region of 125°-150°E and 10°-29°N. The TCs usually occur in the La Nina years while the Westerly Pacific Subtropical High （WPSH） is weak, the westerly extension of the subtropical high ridge point is eastward and subtropical high ridge line is northward. When these TCs move to near 125°E, the westerly trough usually maintains around 110°-115°E, with the trough bottom locatim around 25°-35°N.

关 键 词：近海北上 热带气旋 特征 

分 类 号：P444[天文地球—大气科学及气象学]