Bottom-Reached Near-Inertial Waves Induced by the Tropical Cyclones, Conson and Mindulle, in the South China Sea | |
Ma, Yonggui3,4; Wang, Dongxiao3,4; Shu, Yeqiang2; Chen, Ju2; He, Yunkai2; Xie, Qiang1 | |
刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS |
2022-06-01 | |
卷号 | 127期号:6页码:13 |
关键词 | near-inertial wave South China Sea deep sea mesoscale eddy |
ISSN号 | 2169-9275 |
DOI | 10.1029/2021JC018162 |
通讯作者 | Shu, Yeqiang |
英文摘要 | Moored current observations in the northwestern South China Sea (SCS) captured two events of near-inertial waves (NIWs) induced by the tropical cyclones Conson and Mindulle, which propagated to the seafloor from the base of the mixed layer. The time taken by the Conson-induced near-inertial kinetic energy (NIKE) to reach the bottom of the ocean was approximately 12 days. This NIKE was twice as fast as the Mindulle-induced NIKE to reach the bottom of the ocean, which was mainly dependent on the properties of the NIWs deeply affected by the background vorticity. The NIWs in the upper layer induced by Conson/Mindulle showed a significant blue/red shift (1.07/0.85 f $f$) as the observation site was located outside/within an exceptional anticyclonic eddy. The bottom NIWs showed an obvious blue shift, aligning with the result of ray tracing, which revealed that the bottom wave packets originated from higher latitudes. We estimated an NIW vertical energy flux of up to 0.22 m W m(-2) in the abyssal ocean, which represents about 29% of the upper layer NIKE. The reached seabed NIWs had high vertical shear and might dissipate locally and play an important role in the maintenance of deep mixing of the SCS. |
资助项目 | National Natural Science Foundation of China[92158204] ; National Natural Science Foundation of China[91858204] ; National Natural Science Foundation of China[42076019] ; National Natural Science Foundation of China[91958202] ; National Natural Science Foundation of China[91858203] ; National Natural Science Foundation of China[U1709202] ; Open Project Program of the State Key Laboratory of Tropical Oceanography[LTOZZ2001] |
WOS关键词 | INTERNAL WAVES ; FINITE TOPOGRAPHY ; KINETIC-ENERGY ; 2 DIMENSIONS ; OCEAN ; WIND ; PROPAGATION ; GENERATION ; SURFACE ; OSCILLATIONS |
WOS研究方向 | Oceanography |
语种 | 英语 |
出版者 | AMER GEOPHYSICAL UNION |
WOS记录号 | WOS:000806589800001 |
资助机构 | National Natural Science Foundation of China ; Open Project Program of the State Key Laboratory of Tropical Oceanography |
内容类型 | 期刊论文 |
源URL | [http://ir.idsse.ac.cn/handle/183446/9631] |
专题 | 深海科学研究部_海洋环流观测与数值模拟研究室 |
通讯作者 | Shu, Yeqiang |
作者单位 | 1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China 2.Chinese Acad Sci, State Key Lab Trop Oceanog, South China Sea Inst & Oceanol, Guangzhou, Peoples R China 3.Sun Yat Sen Univ, Sch Marine Sci, Guangzhou, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Guangzhou, Peoples R China |
推荐引用方式 GB/T 7714 | Ma, Yonggui,Wang, Dongxiao,Shu, Yeqiang,et al. Bottom-Reached Near-Inertial Waves Induced by the Tropical Cyclones, Conson and Mindulle, in the South China Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2022,127(6):13. |
APA | Ma, Yonggui,Wang, Dongxiao,Shu, Yeqiang,Chen, Ju,He, Yunkai,&Xie, Qiang.(2022).Bottom-Reached Near-Inertial Waves Induced by the Tropical Cyclones, Conson and Mindulle, in the South China Sea.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,127(6),13. |
MLA | Ma, Yonggui,et al."Bottom-Reached Near-Inertial Waves Induced by the Tropical Cyclones, Conson and Mindulle, in the South China Sea".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 127.6(2022):13. |
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