Impingement of Subsurface Anticyclonic Eddies on the Kuroshio Mainstream East of Taiwan

doi:10.1029/2022JC018950

IOCAS-IR > 海洋环流与波动重点实验室

	Impingement of Subsurface Anticyclonic Eddies on the Kuroshio Mainstream East of Taiwan
	Wang, Ran1,2 ; Nan, Feng 1,2,3,4; Yu, Fei 1,2,3,4; Wang, Bin5
	2022-11-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
卷号	127 期号:11 页码:15
通讯作者	Nan, Feng([email protected]) ; Yu, Fei([email protected])
摘要	This study shows that North Pacific subtropical mode water (STMW) characterized by low potential vorticity can approach and impinge on the Kuroshio mainstream east of Taiwan. The results of the analyses of observations and output from eddy-resolving models show that the STMW appears with the frequency of 32.1% and 19.9% in the Kuroshio east of Taiwan. A case study with the output of the ocean general circulation model for the earth simulator during October 2015-March 2016 indicates that mode water moves southwestward toward the Kuroshio in accordance with a vertically lens-shaped subsurface anticyclonic eddy (SAE). After the shoreward edge of the SAE impinges on the offshore edge of the Kuroshio, the northward velocity, especially subsurface velocity, of the Kuroshio increases significantly in the subsurface layer and the Kuroshio central position (KCP) extends eastward. While the SAE moves and dissipates, the offshore edge of the Kuroshio moves inshore, and then transport decreases. Both the northward velocity and the KCP changes result in the Kuroshio transport change during the impingement of SAE in the case. Statistic analysis further demonstrate that eddies those can trap moving STMW are dominated by SAEs. When SAEs encounter the Kuroshio, their subsurface northward velocity increases by 67.8% and the KCP moves eastward, and thus the northward transport of the Kuroshio increases by 43.4%.
关键词	mode water Kuroshio subsurface velocity subsurface anticyclonic eddy
DOI	10.1029/2022JC018950
收录类别	SCI
语种	英语
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000888586800001
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/337002/180211
专题	海洋环流与波动重点实验室
通讯作者	Nan, Feng; Yu, Fei
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China 5.Hohai Univ, Coll Oceanog, Nanning, Peoples R China
第一作者单位	海洋环流与波动重点实验室; 中国科学院海洋大科学研究中心
通讯作者单位	海洋环流与波动重点实验室; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Wang, Ran,Nan, Feng,Yu, Fei,et al. Impingement of Subsurface Anticyclonic Eddies on the Kuroshio Mainstream East of Taiwan[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2022,127(11):15.
APA	Wang, Ran,Nan, Feng,Yu, Fei,&Wang, Bin.(2022).Impingement of Subsurface Anticyclonic Eddies on the Kuroshio Mainstream East of Taiwan.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,127(11),15.
MLA	Wang, Ran,et al."Impingement of Subsurface Anticyclonic Eddies on the Kuroshio Mainstream East of Taiwan".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 127.11(2022):15.

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