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

doi:10.1029/2022JC018950

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

	Impingement of Subsurface Anticyclonic Eddies on the Kuroshio Mainstream East of Taiwan
	Wang, Ran 1,2; Nan, Feng 1,2,3,4; Yu, Fei 1,2,3,4; Wang, Bin 5
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2022-11-01
卷号	127 期号:11 页码:15
关键词	mode water Kuroshio subsurface velocity subsurface anticyclonic eddy
ISSN号	2169-9275
DOI	10.1029/2022JC018950
通讯作者	Nan, Feng(nanfeng0515@126.com) ; Yu, Fei(yuf@qdio.ac.cn)
英文摘要	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%.
WOS研究方向	Oceanography
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000888586800001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180210]
专题	海洋研究所_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
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.