| 2020年西北太平洋和南海台风活动概述 |
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| 引用本文： | 周冠博,董林,王海平,刘达.2020年西北太平洋和南海台风活动概述[J].山东气象,2021,41(1):1-10. |
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| 作者姓名： | 周冠博 董林 王海平 刘达 |
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| 作者单位： | （国家气象中心，北京 100081） |
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| 基金项目： | 国家自然科学基金重点项目(41930972)；广东省重点领域研发计划重点专项项目（2019B111101002）；中国气象局预报员专项（CMAYBY2019-143）；国家自然科学基金青年科学基金项目（41405049） |
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| 摘 要： | 利用中央气象台台风实时业务定位资料和地面气象观测资料对2020年西北太平洋和南海的台风活动主要特征以及主要影响我国的台风路径、强度及风雨情况进行了统计分析。2020年西北太平洋和南海共有23个台风生成，较多年平均值（27.0个）偏少4.0个；有5个台风登陆我国，较多年平均值（7.0个）偏少2.0个。2020年台风活动的主要特征有：台风生成源地明显偏西；生成总数偏少，极值强度偏弱；7月“空台”，是1949年以来历史首次；8月台风活跃，出现多个近海快速增强的台风；8月下旬至9月上旬，3个台风连续北上影响我国东北地区，历史罕见；10月生成的台风个数较常年偏多，先后影响我国南海或中南半岛。
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| 关 键 词： | 台风 登陆 活动特征 快速增强热带气旋 降水 7月“空台” |
| 收稿时间： | 2020/12/31 0:00:00 |
Overview of typhoon activities over western North Pacific and the South China Sea in 2020 |
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| ZHOU Guanbo,DONG Lin,WANG Haiping,LIU Da.Overview of typhoon activities over western North Pacific and the South China Sea in 2020[J].Journal of Shandong Meteorology,2021,41(1):1-10. |
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| Authors: | ZHOU Guanbo DONG Lin WANG Haiping LIU Da |
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| Institution: | (National Meteorological Center, Beijing 100081, China) |
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| Abstract: | Based on the operational real-time typhoon data of National Meteorological Center and surface meteorological observation data, the main characteristics of typhoon activities in western North Pacific and the South China Sea in 2020, as well as the typhoon path, intensity, wind, and precipitation of typhoons that mainly affect China are analyzed. In 2020, there are a total of 23 typhoons generated over western North Pacific and South China Sea, 4.0 less than the mean value (27.0) in the same period of many years; 5 typhoons make landfall in China, 2.0 less than the mean value (7.0) in the same period of many years. The main characteristics of typhoon activities in 2020 are as follows. The source of typhoons is obviously westward; the total number of typhoons is relatively small and the extreme intensity is lower; for the first time since 1949, there is no typhoon in July; typhoons are active in August with a number of typhoons rapidly strengthened over offshore areas; from late August to early September, three typhoons continuously move northward and affect Northeast China, which is rare in history; the number of typhoons generated in October is relatively larger than that in the same period of many years, which affect the South China Sea or Indochina Peninsula successively. |
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| Keywords: | typhoon landfall characteristics of activity rapid intensification tropical cyclone precipitation typhoon absence in July |
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