近海北上热带气旋特征 |
作者:朱业1 2 陆建新2 卢美2 3 |
单位: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 |
关键词:近海北上 热带气旋 特征 |
分类号:P444 |
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出版年·卷·期(页码):2012·29·第五期(23-28) |
摘要:
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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 locating around 25°—35°N. |
参考文献:
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[1] 国家气象局.台风年鉴[G].北京:气象出版社,1949-1988. [2] 中国气象局.热带气旋年鉴[G].北京:气象出版社,1989-2009. [1]国家气象局.台风年鉴[G].北京:气象出版社,1949-1988. [2] 中国气象局.热带气旋年鉴[G].北京:气象出版社,1989-2009. |
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