辽宁沿海台风风暴潮特征分析-海洋预报

辽宁沿海台风风暴潮特征分析

单位：1. 辽宁省海洋预警监测中心, 辽宁沈阳 110001;
2. 国家海洋环境预报中心, 北京 100081;
3. 自然资源部海洋灾害预报技术重点实验室, 北京 100081

分类号：P731.23

出版年·卷·期（页码）：2025·42·第六期（17-23）

摘要：

收集了1991—2021年北上影响辽宁沿海的台风资料及由其引起的台风风暴潮过程资料，通过统计分析方法，得到北上影响辽宁沿海的台风及辽宁沿海台风风暴潮的特征。结果表明：31年间有24个台风北上影响辽宁沿海，平均每年为0.8个，影响时间主要集中在7—8月。北上影响辽宁沿海的台风路径主要分为3类，其中由中路北上的台风引起的风暴增水最大，由西北路北上的台风引起的风暴增水最小，由东北部北上的台风引起的台风风暴潮过程最多。北上台风的路径形成与西太平洋副热带高压及西风带的位置有关。合成分析表明，当夏季西太平洋副热带高压偏弱、位置偏北偏东时，有利于台风北上影响辽宁沿海。

We collected data on typhoons that affected the coastal area of Liaoning Province from 1991 to 2021,and analyzed the characteristics of the northward movement typhoons and the typhoon storm surges in the coastal area of Liaoning Province through statistical analysis methods. The results show that 24 typhoons have moved northward and affected the Liaoning coastal area during the 31 years, with an average frequency of 0.8 per year and an impacting period from July to August. The major typhoon paths can be divided into three categories. The storm surge caused by typhoons moving north in the middle path is the largest, the storm surge caused by typhoons moving north in the northwest path is the smallest, and the storm surge process caused by typhoons moving north in the northeast path has the most frequency. The path of a northward typhoon is related to the position of the western Pacific subtropical high and westerlies. Through synthetic analysis, it is shown that the relative weak subtropical high pressure in the western Pacific in summer benefits the formation of a northward movement typhoon affecting the Liaoning coastal area.

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