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, Zhenhua1,2,3,4,5; Li, Qun6; Min, Wenjia1,3,4; Wang, Yang1,3,4; Yin, Baoshu1,2,3,4,5
2021-10-23
Source PublicationJOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
Pages15
Corresponding AuthorXu, Zhenhua(xuzhenhua@qdio.ac.cn)
AbstractThe 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.
Keywordnear-inertial waves (NIWs) anticyclonic mesoscale eddy spontaneous generation
DOI10.1007/s00343-021-0477-3
Indexed BySCI
Language英语
Funding ProjectStrategic 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 Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000710617100002
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/176768
Collection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
Corresponding AuthorXu, Zhenhua
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
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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