Variation and Episodes of Near-Inertial Internal Waves on the Continental Slope of the Southeastern East China Sea

doi:10.3390/jmse9080916

IOCAS-IR > 海洋环流与波动重点实验室

	Variation and Episodes of Near-Inertial Internal Waves on the Continental Slope of the Southeastern East China Sea
	Yang, Bing1,2,3,4 ; Hu, Po1,2,3,4 ; Hou, Yijun 1,2,3,4
	2021-08-01
发表期刊	JOURNAL OF MARINE SCIENCE AND ENGINEERING
卷号	9 期号:8 页码:23
通讯作者	Hu, Po(hupo@qdio.ac.cn)
摘要	Based on in situ observations, six episodes of near-inertial internal waves (NIWs) were detected on the East China Sea (ECS) continental slope, and the mechanisms and characteristics of them were examined. The generation mechanisms of the observed NIWs included typhoon, wind burst, lateral propagation, and energy transfer from low-frequency flow. The depth-integrated near-inertial kinetic energy (NIKE) showed no significant seasonal variation, and the annual mean NIKE and near-inertial currents were 400 J/m(2) and 3.50 cm/s, respectively. Downward propagation of NIKE was evident in the small wavenumber band according to the rotary vertical wavenumber spectra. The NIKE was subsurface-intensified, and the near-inertial vertical shear reached 0.01 s(-1). The vertical phase speeds of the NIWs ranged from 5 to 19 m/h. The frequencies of the NIWs were mostly red-shifted, however, blue-shift also existed. One episode had both blue- and red-shifted frequencies vertically, and had both upward and downward propagating vertical phase speeds. The e-folding times of the observed NIWs ranged from 4 to 11 days, which were influenced by successive wind bursts and background vorticity. On the left-hand side of Kuroshio, the background vorticity is usually positive; however, the NIWs were almost red-shifted, which resulted from the Doppler shift of the Kuroshio.
关键词	near-inertial waves continental slope typhoon impact East China Sea Kuroshio
DOI	10.3390/jmse9080916
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41706017] ; National Natural Science Foundation of China[41421005] ; National Natural Science Foundation of China[U1406401] ; National Natural Science Foundation of China[U1133001] ; National Program on Global Change and AirSea Interaction[GASI-IPOVAI-01-06] ; National Key Research and Development Program of China[2016YFC1402000] ; National Key Research and Development Program of China[2017YFC1404101]
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Marine ; Engineering, Ocean ; Oceanography
WOS记录号	WOS:000689541900001
出版者	MDPI
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/176303
专题	海洋环流与波动重点实验室
通讯作者	Hu, Po
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao 266237, Peoples R China 4.Univ Chinese Acad Sci, Sch Oceanog, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Yang, Bing,Hu, Po,Hou, Yijun. Variation and Episodes of Near-Inertial Internal Waves on the Continental Slope of the Southeastern East China Sea[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2021,9(8):23.
APA	Yang, Bing,Hu, Po,&Hou, Yijun.(2021).Variation and Episodes of Near-Inertial Internal Waves on the Continental Slope of the Southeastern East China Sea.JOURNAL OF MARINE SCIENCE AND ENGINEERING,9(8),23.
MLA	Yang, Bing,et al."Variation and Episodes of Near-Inertial Internal Waves on the Continental Slope of the Southeastern East China Sea".JOURNAL OF MARINE SCIENCE AND ENGINEERING 9.8(2021):23.

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