台风陆架波对南海北部夏季沿岸流的影响  

Impact of Typhoon-Induced Shelf Wave on Coastal Current in Northern South China Sea in Summer

作　　者：陈海亮 汪峰 苗艳红 孙佳 李玲莉 鞠霞 郭延良 熊学军 CHEN Hailiang;WANG Feng;MIAO Yanhong;SUN Jia;LI Lingli;JU Xia;GUO Yanliang;XIONG Xuejun(China Nuclear Power Design Co.,Ltd.(Shenzhen),Shenzhen 518172,China;First Institute of Oceanography,MNR,Qingdao 266061,China;Key Laboratory of Marine Science and Numerical Modeling,MNR,Qingdao 266061,China;Shandong Key Laboratory of Marine Science and Numerical Modeling,Qingdao 266061,China;Laboratory for Regional Oceanography and Numerical Modeling,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China)

机构地区：[1]深圳中广核工程设计有限公司,广东深圳518172 [2]自然资源部第一海洋研究所,山东青岛266061 [3]自然资源部海洋环境科学与数值模拟重点实验室,山东青岛266061 [4]山东省海洋环境科学与数值模拟重点实验室,山东青岛266061 [5]青岛海洋科学与技术试点国家实验室区域海洋动力学与数值模拟功能实验室,山东青岛266237

出　　处：《海洋科学进展》2023年第3期435-443,共9页Advances in Marine Science

基　　金：中央级公益性科研院所基本科研业务费专项资金资助项目(2020Q05);山东省自然科学基金项目(ZR2022MD020);国家自然科学基金青年基金项目(41706034)。

摘　　要：为揭示台风过程对南海北部沿岸流场的影响,本文利用2015年7月至8月华南沿海现场观测和数值同化数据,分析研究了“灿鸿”“浪卡”和“苏迪罗”三个台风过程引起的南海北部沿海陆架波过程。结果显示,台风过程会在近岸形成自台湾海峡以北沿华南沿岸至琼州海峡的向SW方向传播的陆架波流,平均传播速度为38.4 km/h,产生的SW向海流平均可达30~50 cm/s,引起的最大增水超过50 cm。台风陆架波的影响与台风强度和位置有关,台风越强、距离研究区域越近,所产生的影响越大。研究成果有助于加强陆架海洋环境对台风的响应过程及其物理机制的科学认识,可为华南沿海以及南海陆坡等地区的工程全潮测验结果典型性分析提供重要参考和依据。To reveal the impact of typhoon on the coastal current in northern South China Sea,in-situ observations and numerical assimilations from July to August in 2015 are used to investigate the oceanic responses to the shelf waves induced by three typhoons,Chan-hong,Langka and Soudelor.on Chan-hong,Langka and Soudelor.The results show that the shelf waves induced by typhoons propagated southwestward from the north of the Taiwan Strait to the Qiongzhou Strait along the south coast of China with an averaged propagation speed of 38.4 km/h,causing southwestward currents with mean speed of 30−50 cm/s and maximum sea level raise of more than 50 cm.The impact of typhoon-induced shelf waves is related to the intensity and the relative distance of typhoons.The stronger the intensity,the closer the distance,the greater the impacts induced by typhoons.These findings are useful for further understanding on how coastal oceanic environment responses to the typhoons and can provide important references for the analysis of tide in marine engineering in the southern coastal areas and continental slope of China.

关 键 词：华南沿海 台风 陆架波 全潮测验 红海湾 

分 类 号：P731.2[天文地球—海洋科学]