Mesoscale Eddy Effects on the Subduction of North Pacific Eastern Subtropical Mode Water

doi:10.1029/2019JC015641

IOCAS-IR > 海洋环流与波动重点实验室

	Mesoscale Eddy Effects on the Subduction of North Pacific Eastern Subtropical Mode Water
	Wang, Ran1,2 ; Cheng, Xuhua 1; Xu, Lixiao 3,4; Chen, Jiajia 1
	2020-05-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
卷号	125 期号:5 页码:15
通讯作者	Cheng, Xuhua([email protected])
摘要	The effects of mesoscale eddies on the subduction of the North Pacific eastern subtropical mode water (ESTMW) are studied by comparing observations with results from the Ocean Model for the Earth Simulator (OFES). Both observations and the OFES show that mesoscale eddies exist in the ESTMW subduction region. Compared to the observations, the OFES reproduces the characteristics of the ESTMW and subduction quite well. Subduction of the ESTMW mainly occurs within a low-density advection region, which leads to the formation of low potential vorticity water. The eddy subduction rate accounts for nearly 56% of the total subduction rate, creating high peaks in the ESTMW subduction volume histogram. Case study results show that the propagation of eddies is responsible for the shallowing of the mixed-layer depth, which allows low potential vorticity water to subduct under the mixed-layer bottom and prevents it from being entrained back into the mixed layer. The eddy subduction process investigated here has important implications for the further study of ESTMW subduction and transport, which is helpful for better understanding the interior transportation between the tropics and subtropics. Key Points Eddy subduction account for the majority of total subduction in ESTMW subduction region Eddy-resolved model data is needed to do mechanism analysis Mesoscale eddies enhance ESTMW subduction by strengthening the rate of mixed layer shallowing
关键词	ESTMW subduction mesoscale eddies
DOI	10.1029/2019JC015641
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2017YFA0604602]; Fundamental Research Funds for the Central Universities[2017B03914]; Fundamental Research Funds for the Central Universities[2017B04714]; Natural Science Foundation of Jiangsu Province[BK20170870]; Natural Science Foundation of China[41522601]; Natural Science Foundation of China[41876002]
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000548601000002
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：4[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/337002/167970
专题	海洋环流与波动重点实验室
通讯作者	Cheng, Xuhua
作者单位	1.Hohai Univ, Coll Oceanog, Nanjing, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 3.Ocean Univ China, Phys Oceanog Lab CIMST, Qingdao, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
第一作者单位	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Wang, Ran,Cheng, Xuhua,Xu, Lixiao,et al. Mesoscale Eddy Effects on the Subduction of North Pacific Eastern Subtropical Mode Water[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2020,125(5):15.
APA	Wang, Ran,Cheng, Xuhua,Xu, Lixiao,&Chen, Jiajia.(2020).Mesoscale Eddy Effects on the Subduction of North Pacific Eastern Subtropical Mode Water.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,125(5),15.
MLA	Wang, Ran,et al."Mesoscale Eddy Effects on the Subduction of North Pacific Eastern Subtropical Mode Water".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 125.5(2020):15.

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