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

doi:10.1029/2019JC015641

CORC > 海洋研究所 > 中国科学院海洋研究所 > 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, Ran 2,3; Cheng, Xuhua 2; Xu, Lixiao 1,4; Chen, Jiajia 2
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2020-05-01
卷号	125 期号:5 页码:15
关键词	ESTMW subduction mesoscale eddies
ISSN号	2169-9275
DOI	10.1029/2019JC015641
通讯作者	Cheng, Xuhua(xuhuacheng@hhu.edu.cn)
英文摘要	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
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
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000548601000002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/167969]
专题	海洋研究所_海洋环流与波动重点实验室
通讯作者	Cheng, Xuhua
作者单位	1.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 2.Hohai Univ, Coll Oceanog, Nanjing, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 4.Ocean Univ China, Phys Oceanog Lab CIMST, Qingdao, Peoples R China
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.