Intraseasonal variability of the Kuroshio east of Taiwan, China, observed by subsurface mooring during 2016-2017

doi:10.1007/s00343-020-9286-3

IOCAS-IR > 海洋环流与波动重点实验室

	Intraseasonal variability of the Kuroshio east of Taiwan, China, observed by subsurface mooring during 2016-2017
	Ren Qiang1,2,3 ; Yu Fei 1,2,3,4; Nan Feng 1,2,3,4; Wang Jianfeng 1,2,3,4; Xu Anqi 1,2,3
	2020-09-01
发表期刊	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	2096-5508
卷号	38 期号:5 页码:1408-1420
通讯作者	Yu Fei(yuf@qdio.ac.cn)
摘要	The mean velocity structure and variability of the Kuroshio east of Taiwan, China, were investigated using mooring observations acquired at 23 degrees N/122 degrees E between January 2016 and May 2017. Power spectrum analysis reveals marked intraseasonal variability in 70-95 days in the meridional Kuroshio velocity in the upper 800 m. Hybrid Coordinate Ocean Model assimilation data adequately reproduce variations of the Kuroshio. Westward propagating mesoscale eddies that originated from the Subtropical Countercurrent play an important role in intraseasonal variability in the Kuroshio velocity. Cyclonic (anticyclonic) eddies are often associated with negative (positive) sea surface height anomaly, resulting in positive (negative) potential vorticity in the subsurface layer of the eddy center, which decreases (increases) isopycnal slope and then weakens (strengthens) the Kuroshio. When anticyclonic (cyclonic) eddies are active, the Kuroshio axis moves offshore (inshore). Corresponding to the Kuroshio intraseasonal variability (ISV), the variation of the intermediate water salinity also had a significant ISV induced by the mesoscale eddies.
关键词	intraseasonal variability Kuroshio mesoscale eddy intermediate water
DOI	10.1007/s00343-020-9286-3
收录类别	SCI
语种	英语
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:000584398800006
出版者	SCIENCE PRESS
引用统计	被引频次：5[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/337002/169082
专题	海洋环流与波动重点实验室
通讯作者	Yu Fei
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Wave Studies, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Ren Qiang,Yu Fei,Nan Feng,et al. Intraseasonal variability of the Kuroshio east of Taiwan, China, observed by subsurface mooring during 2016-2017[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2020,38(5):1408-1420.
APA	Ren Qiang,Yu Fei,Nan Feng,Wang Jianfeng,&Xu Anqi.(2020).Intraseasonal variability of the Kuroshio east of Taiwan, China, observed by subsurface mooring during 2016-2017.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,38(5),1408-1420.
MLA	Ren Qiang,et al."Intraseasonal variability of the Kuroshio east of Taiwan, China, observed by subsurface mooring during 2016-2017".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 38.5(2020):1408-1420.

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