海洋学研究 ›› 2016, Vol. 34 ›› Issue (1): 1-7.DOI: 10.3969/j.issn.1001-909X.2016.01.001

• 研究论文 •    下一篇

台风威马逊入侵南海的路径分析

董航1,2, 姜良红1,2, 章向明1,2, 周磊*1,2   

  1. 1.卫星海洋环境动力学国家重点实验室,浙江 杭州 310012;
    2.国家海洋局 第二海洋研究所,浙江 杭州 310012
  • 收稿日期:2015-05-20 修回日期:2015-07-22 出版日期:2016-03-15 发布日期:2022-11-24
  • 通讯作者: * 周磊(1979-),男,研究员,主要从事海洋上层动力学和热带海气相互作用方面的研究。E-mail: lzhou@sio.org.cn
  • 作者简介:董航(1990-),女,辽宁海城市人,主要从事海气相互作用方面的研究。E-mail: dongh@sio.org.cn
  • 基金资助:
    国家重点基础研究发展计划(“973”计划)资助(2013CB430302);大洋“十二五”专项项目资助(DY125-11-E-02);国家自然科学基金项目资助(41376034)

Analysis on the track of Typhoon Rammasun into the South China Sea

DONG Hang1,2, JIANG Liang-hong1,2, ZHANG Xiang-ming1,2, ZHOU Lei*1,2   

  1. 1. State Key Laboratory of Satellite Ocean Environment Dynamics, Hangzhou 310012, China;
    2. The Second Institute of Oceanography, SOA, Hangzhou 310012, China
  • Received:2015-05-20 Revised:2015-07-22 Online:2016-03-15 Published:2022-11-24

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摘要： 1409号台风威马逊是自1973年以来登陆华南地区的最强台风,其在登陆前,临岸急剧增强。每年初夏,尽管南海的海洋环境有利于台风的增长,但是由于西太平洋副热带高压(以下简称副高)的引导作用,大部分台风路径会偏离南海。本文分析结果表明,在2014年初夏,副高的位置相对过去几十年的平均位置更偏向西南方,因此,台风威马逊在副高的引导下穿过菲律宾进入南海海域。南海的高温海水为其强度陡增提供了有利条件,威马逊在短短26 h内急剧增长为超强台风。前人研究结果显示,近些年来副高的位置明显向西延伸,如果这种西向延伸的趋势一直保持或者继续,那么在初夏可能会有更多的热带风暴进入南海并且得以加强,华南地区或将面临更多灾难性台风的袭击。

关键词: 超强台风, 威马逊, 南海, 西太平洋副高, 华南

Abstract: Typhoon Rammasun was the strongest typhoon that hit the South China in the past 41 years since 1973. It increased rapidly over the South China Sea (SCS) before the landfall. In early summer, the SCS is warm enough to support the increase of a typhoon in every year. However, the Western Pacific Subtropical High (WPSH) which steers the trajectories of tropical storms in the western Pacific deviates most tropical storms from the SCS. But, recently, the WPSH experiences a westward extension. Analysis shows that WPSH in early summer of 2014 took a more southward and more westward position than it did in the past several decades. As a result, Typhoon Rammasun was guided into the SCS through Philippine, which was an uncommon tropical storm track in July. In the SCS, Typhoon Rammasun was nourished by the warm ocean and became a super typhoon within only 26 hours. As the implication of this study, if the westward extension of WPSH remains and continues, it is reasonable to expect that more tropical storms enter the warm SCS and get intensified in early summer. Consequently, the South China is likely to be more vulnerable to devastating typhoons.

Key words: super typhoon, Rammasun, South China Sea, Western Pacific Subtropical High, South China

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