The characteristics of spontaneous near-inertial wave generation from an anticyclonic mesoscale eddy

doi:10.1007/s00343-021-0477-3

IOCAS-IR > 海洋环流与波动重点实验室

	The characteristics of spontaneous near-inertial wave generation from an anticyclonic mesoscale eddy
	Zhao, Bo1,3,4 ; Xu, Zhenhua 1,2,3,4,5; Li, Qun 6; Min, Wenjia 1,3,4; Wang, Yang1,3,4 ; Yin, Baoshu 1,2,3,4,5
	2021-10-23
发表期刊	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	2096-5508
页码	15
通讯作者	Xu, Zhenhua(xuzhenhua@qdio.ac.cn)
摘要	The generation and propagation characteristics of near-inertial waves (NIWs) generated spontaneously from a quasi-geostrophic anticyclonic mesoscale eddy in a rotating and stratified fluid were investigated by three-dimensional numerical modeling. NIWs are generated over a long time interval as a forced response to balanced baroclinic mesoscale eddies. For such eddies, NIW generation from balanced flow is an inevitable result as the evolution of eddies. Moreover, the baroclinicity of mesoscale eddies is an essential condition for this NIW generation mechanism. The spontaneously generated NIWs radiate horizontally toward the eddy center and propagate upward in vertical direction. The forcing of the NIWs moves downward along the eddy axis from the location of maximum temperature anomaly of the mesoscale eddy. The moving speed of the forcing is independent on the balanced mesoscale eddies but is determined by the ratio of buoyancy to inertial frequency. When the forcing reaches the bottom of the mesoscale eddy, the spontaneous NIW generation process terminates. NIW intensity in this spontaneous generation process is strengthened with the increase of the Rossby and Froude numbers. Further research to gain a solid understanding of the role of the Rossby and Froude numbers is necessary for the parameterization of spontaneous NIW generation from quasi-geostrophic mesoscale eddies in general circulation model.
关键词	near-inertial waves (NIWs) anticyclonic mesoscale eddy spontaneous generation
DOI	10.1007/s00343-021-0477-3
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA22050202] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000] ; National Natural Science Foundation of China[92058202] ; National Natural Science Foundation of China[91858103] ; National Key Research and Development Program of China[2017YFA0604102] ; National Key Research and Development Program of China[2016YFC1401404] ; CAS Key Research Program of Frontier Sciences[QYZDB-SSW-DQC024] ; Key Deployment Project of Centre for Ocean Mega-Research of Science, Chinese Academy of Sciences[COMS2020Q07] ; Chinese Academy of Sciences (CAS)[133244KYSB20190031] ; Commonwealth Scientific and Industrial Research Organisation (CSIRO)[133244KYSB20190031]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:000710617100002
出版者	SCIENCE PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/176768
专题	海洋环流与波动重点实验室海洋生态与环境科学重点实验室
通讯作者	Xu, Zhenhua
作者单位	1.Chinese Acad Sci, CAS Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao 266071, Peoples R China 6.Polar Res Inst China, Shanghai 200136, 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	Zhao, Bo,Xu, Zhenhua,Li, Qun,et al. The characteristics of spontaneous near-inertial wave generation from an anticyclonic mesoscale eddy[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2021:15.
APA	Zhao, Bo,Xu, Zhenhua,Li, Qun,Min, Wenjia,Wang, Yang,&Yin, Baoshu.(2021).The characteristics of spontaneous near-inertial wave generation from an anticyclonic mesoscale eddy.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,15.
MLA	Zhao, Bo,et al."The characteristics of spontaneous near-inertial wave generation from an anticyclonic mesoscale eddy".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2021):15.

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