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Suppressed vertical propagation of near-inertial waves by consecutive tropical cyclones in the northern South China Sea

文献类型：期刊论文

作者Guo, Wulinan3,4; Xu, Jiexin3,4; Gong, Yankun3; Chen, Zifei1,2; Chen, Zhiwu3,4; He, Yinghui3,4; Cai, Shuqun3,4
刊名DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
出版日期2026-04-01
卷号228页码:12
关键词Near-inertial waves Consecutive tropical cyclones South China sea
ISSN号0967-0637
DOI10.1016/j.dsr.2026.104666
通讯作者Xu, Jiexin(jxxu@scsio.ac.cn)
英文摘要Mooring data near the Yitong Shoal in the South China Sea during July 2024 were used to analysis near-inertial waves (NIWs) induced by three consecutive tropical cyclones (TCs, hereafter TC1, TC2 and TC3). All three TCs generated marked energy increases in near-inertial band. Though induced by similar wind stress, NIWs from TC1 resembled those reported in previous studies, whereas TC2 and TC3 exhibited distinct characteristics. Compared with TC1, the propagation depth of NIWs induced by TC2 reduced by 15.56% whilst the maximum NIW velocity increased by 30%, and the propagation depth of NIWs by TC3 reduced by 33.33% whilst the maximum NIW velocity increased by 60%, indicating amplified yet suppressed vertical propagation NIWs. Directional decomposition and rotary spectra indicated that NIWs were downward-propagating from the surface, suggesting that they were mainly generated by TCs. Wind work analysis showed increased energy transfer into the mixed layer during consecutive TCs. They are also influenced by near-inertial currents induced by preceding TCs. During consecutive TCs period, oceanic stratification changed significantly, keeping weaken between 40 and 70 m but strengthen between 70 and 150 m, resulting in a reduction of NIW vertical wavelengths and group velocities, indicating a suppressed vertical propagation of NIWs. Enhanced shear and low Ri appeared where oceanic stratification was strengthened, suggesting an enhanced mixing. Consequently, near-inertial kinetic energy generated by TC3 dissipated largely in the shallowest depth. These results provide new insights into how consecutive extreme TCs modulate NIWs and upper-ocean mixing, highlighting the differences between consecutive TCs and single TC in induced NIWs.
WOS关键词UPPER OCEAN RESPONSE ; INTERNAL WAVES ; TYPHOON ; ENERGY ; SURFACE ; WIND ; TIDES ; STORM
资助项目National Natural Science Foundation of China (NSFC)[42130404] ; National Natural Science Foundation of China (NSFC)[42276022] ; National Natural Science Foundation of China (NSFC)[42206012] ; National Natural Science Foundation of China (NSFC)[42276015] ; Natural Science Foundation of Guangdong Province[2024A1515012549] ; Natural Science Foundation of Guangdong Province[2024A1515012703] ; Scientific and Technological Planning Project of Guangzhou City[2024A04J9022] ; Scientific and Technological Planning Project of Guangzhou City[2024A04J3587] ; Basic Frontiers and Innovative Development 2023 Integration Project of South China Sea Institute of Oceanology[SCSIO2023QY02] ; NSFC Shiptime Sharing Project[42349907] ; NSFC Shiptime Sharing Project[NORC2024-07]
WOS研究方向Oceanography
语种英语
WOS记录号WOS:001683266300001
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://ir.qdio.ac.cn/handle/337002/204703]  
专题海洋研究所_海洋环流与波动重点实验室
通讯作者Xu, Jiexin
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Observat & Forecasting, Qingdao, Peoples R China
3.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, 164 West Xingang Rd, Guangzhou 510301, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Wulinan,Xu, Jiexin,Gong, Yankun,et al. Suppressed vertical propagation of near-inertial waves by consecutive tropical cyclones in the northern South China Sea[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2026,228:12.
APA Guo, Wulinan.,Xu, Jiexin.,Gong, Yankun.,Chen, Zifei.,Chen, Zhiwu.,...&Cai, Shuqun.(2026).Suppressed vertical propagation of near-inertial waves by consecutive tropical cyclones in the northern South China Sea.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,228,12.
MLA Guo, Wulinan,et al."Suppressed vertical propagation of near-inertial waves by consecutive tropical cyclones in the northern South China Sea".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 228(2026):12.

入库方式： OAI收割

来源：海洋研究所

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