An "Eddy beta-Spiral" mechanism for vertical velocity dipole patterns of isolated oceanic mesoscale eddies

doi:10.3389/fmars.2022.1036783

IOCAS-IR > 海洋环流与波动重点实验室

	An "Eddy beta-Spiral" mechanism for vertical velocity dipole patterns of isolated oceanic mesoscale eddies
	Hou, Yinglin 1,2,3; Jin, Fei-Fei 4; Gao, Shan 1,2,3,5; Zhao, Jun1,2,3 ; Liu, Kai1,2,3 ; Qu, Tangdong 6; Wang, Fan1,2,3,5
	2022-10-21
发表期刊	FRONTIERS IN MARINE SCIENCE
卷号	9 页码:13
通讯作者	Jin, Fei-Fei(jff@hawaii.edu) ; Gao, Shan(gaoshan@qdio.ac.cn)
摘要	Oceanic eddies accompanied by a significant vertical velocity (w) are known to be of great importance for the vertical transport of various climatically, biologically or biogeochemically relevant properties. Using quasi-geostrophic w-thinking to extend the classic "beta-spiral " w-theory for gyre circulations to isolated and nearly symmetric oceanic mesoscale eddies, we propose that their w motion will be dominated by a strong east-west dipole pattern with deep ocean penetrations. Contrasting numerical simulations of idealized isolated eddies together with w-equation diagnostics confirm that the w-dipole is indeed dominated by the "eddy beta-spiral " mechanism in the beta-plane simulation, whereas this w-dipole expectedly disappears in the f-plane simulation. Analyses of relatively isolated warm and cold eddy examples show good agreement with the proposed mechanism. Our studies further clarify eddy vertical motions, have implications for ocean mixing and vertical transport, and inspire further studies.
关键词	mesoscale eddies vertical velocity beta-effect w-equation dipole pattern
DOI	10.3389/fmars.2022.1036783
收录类别	SCI
语种	英语
资助项目	Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao)[2022QNLM010301-4] ; National Natural Science Foundation of China[41676009] ; U.S. National Science Foundation[AGS-1813611] ; U.S. National Science Foundation[AGS-2219257] ; Department of Energy[DESC0005110]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:000883765700001
出版者	FRONTIERS MEDIA SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/180311
专题	海洋环流与波动重点实验室
通讯作者	Jin, Fei-Fei; Gao, Shan
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Dept Atmospher Sci, Honolulu, HI 96822 USA 5.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao, Peoples R China 6.Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA USA
第一作者单位	中国科学院海洋研究所; 海洋环流与波动重点实验室
通讯作者单位	中国科学院海洋研究所; 海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Hou, Yinglin,Jin, Fei-Fei,Gao, Shan,et al. An "Eddy beta-Spiral" mechanism for vertical velocity dipole patterns of isolated oceanic mesoscale eddies[J]. FRONTIERS IN MARINE SCIENCE,2022,9:13.
APA	Hou, Yinglin.,Jin, Fei-Fei.,Gao, Shan.,Zhao, Jun.,Liu, Kai.,...&Wang, Fan.(2022).An "Eddy beta-Spiral" mechanism for vertical velocity dipole patterns of isolated oceanic mesoscale eddies.FRONTIERS IN MARINE SCIENCE,9,13.
MLA	Hou, Yinglin,et al."An "Eddy beta-Spiral" mechanism for vertical velocity dipole patterns of isolated oceanic mesoscale eddies".FRONTIERS IN MARINE SCIENCE 9(2022):13.

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