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Progress of Studies on Circulation Dynamics in the East China Sea: The Kuroshio Exchanges With the Shelf Currents
Liu, Zhiqiang1,2; Gan, Jianping3,4; Hu, Jianyu5; Wu, Hui6; Cai, Zhongya7; Deng, Yongfei1
2021-02-16
Source PublicationFrontiers in Marine Science
ISSN2296-7745
Volume8
Abstract

This paper reviews recent advances in the circulation dynamics of the Kuroshio and its interaction with shelf currents in the East China Sea (ECS). The annually averaged Kuroshio volume transport varies between 19 and 24 Sv, based on different observations, but there is no consensus on which season its volume transport peaks. The Kuroshio is intensified over the central slope of the ECS from that off the northeast of Taiwan. The total Kuroshio intrusion into the ECS shelf is estimated to be 1.3–1.4 Sv, deduced from the observed volume transport of exchange flow in the Taiwan and Tsushima Straits, based on the assumption of volume conversation over the shelf. However, the uncertainty regarding this estimation remains due to the absence of sufficient observations and understanding of the Kuroshio dynamics. The Kuroshio intrusions over the shelf off the northeast of Taiwan and southwest of Kyushu are stimulated by planetary or topographic β -effect associated with the alongshore variations in the ECS slope topography and altered by variations in the Kuroshio intensity, shear stress, and baroclinicity. Multilayered exchanges between the Kuroshio and shelf currents were found between 100- and 200-m isobaths along the central ECS slope. The spatial variations in these exchanges are governed by cross-isobath transport by geostrophy, whereas bottom Ekman transport may play a predominant role in altering the integrated exchange flow along the slope. Although the intrusion is greatly modulated along the path of the Kuroshio in the ECS by variable slope topography, there are few observations on the spatial variations of these exchange flows. The characteristics and variations in the circulation and hydrographic properties of waters between 100- and 200-m isobaths significantly determine the general ECS circulation, about which consensus has still not been attained.

KeywordEast China Sea Ekman Transport Geostrophic Adjustment Process Kuroshio Shelf Currents
DOI10.3389/fmars.2021.620910
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEnvironmental Sciences ; Marine & Freshwater Biology
WOS IDWOS:000621107800001
Scopus ID2-s2.0-85101163876
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Cited Times [WOS]:12   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionTHE STATE KEY LABORATORY OF INTERNET OF THINGS FOR SMART CITY (UNIVERSITY OF MACAU)
Corresponding AuthorLiu, Zhiqiang
Affiliation1.Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen, China
2.Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
3.Department of Ocean Science, The Hong Kong University of Science and Technology, Hong Kong
4.Department of Mathematics, The Hong Kong University of Science and Technology, Hong Kong
5.State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China
6.State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China
7.State Key Laboratory of Internet of Things for Smart City and Department of Civil and Environmental Engineering, University of Macau, Macao
Recommended Citation
GB/T 7714
Liu, Zhiqiang,Gan, Jianping,Hu, Jianyu,et al. Progress of Studies on Circulation Dynamics in the East China Sea: The Kuroshio Exchanges With the Shelf Currents[J]. Frontiers in Marine Science,2021,8.
APA Liu, Zhiqiang,Gan, Jianping,Hu, Jianyu,Wu, Hui,Cai, Zhongya,&Deng, Yongfei.(2021).Progress of Studies on Circulation Dynamics in the East China Sea: The Kuroshio Exchanges With the Shelf Currents.Frontiers in Marine Science,8.
MLA Liu, Zhiqiang,et al."Progress of Studies on Circulation Dynamics in the East China Sea: The Kuroshio Exchanges With the Shelf Currents".Frontiers in Marine Science 8(2021).
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