文章摘要
2021年西北太平洋和南海台风活动概述
Overview of typhoon activities over western North Pacific and the South China Sea
投稿时间:2022-01-09  修订日期:2022-01-25
DOI:
中文关键词: 台风  登陆台风  活动特征  快速增强  台风“烟花”
英文关键词: typhoon  landfall TC  characteristics of activity  Rapid intensification  typhoon In-Fa
基金项目:
作者单位邮编
向纯怡  
高拴柱 国家气象中心 100081
刘达 国家气象中心 100081
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中文摘要:
   利用中央气象台台风实时业务资料、自动气象站观测资料以及卫星云图等对2021年西北太平洋及南海台风活动的主要特征及影响我国台风的路径、强度及风雨影响进行了分析和回顾。结果表明:2021年西北太平洋及南海台风生成个数偏少,生成源地整体偏西;台风强度偏弱,但有多个台风出现了快速增强,其中台风“灿都”的24 h强度增幅达40 m?s-1,为近30 a少见;先后有5个台风登陆我国,另外2个影响我国。在登陆台风中,4个登陆华南的台风强度均弱于历史平均值。所有登陆台风在登陆后的维持都时间明显高于历史均值,特别是台风“烟花”为历史上登陆华东后维持时间最长的台风,给我国带来了严重的灾害影响。
英文摘要:
   Based on the operational real-time typhoon data of National Meteorological Center and other sources of observations including automatic station and satellite images, the main characteristics of typhoon activities in western North Pacific and the South China Sea in 2021, including 7 influential TC’s tracks , intensity, wind and rainfall, were analyzed and reviewed. In 2021, the total number of TC generated over western North Pacific and the South China Sea is less than dermatological mean value, the genesis region is obviously westward, while the TCs activities are concentrated. The overall intensity of TCs are weaker than normal, but several TCs experienced rapid intensification, among them IN-FA increased by 40 m/s within 24 hours, which was rare in the past 30 yr. There are 5 TCs made landfall in China, among which the averaged intensity of 4 TCs made landfall in southern part of China was obviously lower than average; while the sustained time after landing is obviously higher than average. Especially the case of In-Fa, which has witnessed the longest sustained lifespan after landfall in history, has finally brought serious disaster to China.
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