海洋学研究 >

2014 , Vol. 32 >Issue 2: 14 - 22

DOI: https://doi.org/10.3969/j.issn.1001-909X.2014.02.002

研究论文

环境垂直风切变对0509号台风“麦莎”的影响分析

  • 李瑞 ,
  • 李本亮 ,
  • 胡鹏 ,
  • 梁永礼 ,
  • 刘爱梅
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  • 济南市气象局, 山东 济南 250102
李瑞(1977-),男,江苏宿迁市人,高级工程师,主要从事台风降水方面的研究。E-mail:lr9352@126.com

收稿日期: 2013-11-27

  修回日期: 2014-04-03

  网络出版日期: 2022-11-25

基金资助

国家自然科学基金项目资助(40775060)

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Effects of environmental vertical wind shear on Typhoon Matsa (0509)

  • LI Rui ,
  • LI Ben-liang ,
  • HU Peng ,
  • LIANG Yong-li ,
  • LIU Ai-mei
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  • Jinan Meteorological Bureau, Jinan 250102, China

Received date: 2013-11-27

  Revised date: 2014-04-03

  Online published: 2022-11-25

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摘要

利用多种卫星观测资料和NCEP/NCAR提供的风场资料等,分析了环境垂直风切变对0509号台风“麦莎”的强度、对流和降水结构的影响。结果表明:在台风“麦莎”整个生命史中,垂直风切变与其强度之间关系非常密切,但垂直风切变不是影响其强度变化的唯一因素;“麦莎”登陆前及登陆后在垂直风切变作用下,强对流和强降水均位于顺切变方向及其左侧,对流和降水呈1阶非对称分布。

关键词： 台风“麦莎”; 强度; 对流和降水结构; 环境垂直风切变

本文引用格式

李瑞 , 李本亮 , 胡鹏 , 梁永礼 , 刘爱梅 . 环境垂直风切变对0509号台风“麦莎”的影响分析[J]. 海洋学研究, 2014 , 32(2) : 14 -22 . DOI: 10.3969/j.issn.1001-909X.2014.02.002

Abstract

The effects of environmental vertical wind shear (VWS) on the intensity, convection and precipitation asymmetries in Typhoon Matsa (0509) were analyzed based on the satellite observation data from various sources and NCEP/NCAR reanalysis wind. The results show that before and after Matsa's landfall, there is very close relationship between the VWS and Matsa's intensity, but the VWS is not a sole factor for Matsa's intensity variability. The VWS has a great impact on the asymmetric distribution of Matsa's convection and precipitation before and after its landfall. Heavy convection and rainfall generally occurr downshear to downshear-left of the VWS vector, showing a strong wavenumber-1 asymmetry.

Key words： Typhoon Matsa; intensity; convection and precipitation structures; environmental vertical wind shear

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