IOCAS-IR  > 海洋环流与波动重点实验室
New Insight Into the Onshore Intrusion of the Kuroshio Into the East China Sea
Cui, Xuan1,2,3,4; Yang, Dezhou1,2,3,4; Sun, Chaojiao5; Feng, Xingru1,3,4; Gao, Guandong1,3,4; Xu, Lingjing1,4; Yin, Baoshu1,2,3,4
2021-02-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN2169-9275
Volume126Issue:2Pages:19
Corresponding AuthorYang, Dezhou(yangdezhou@qdio.ac.cn) ; Yin, Baoshu(bsyin@qdio.ac.cn)
AbstractThe Kuroshio Current, a vigorous western boundary current in the Pacific, is responsible for bringing high temperature, high salinity, and phosphate-rich open ocean water into the East China Sea (ECS) when it flows past Taiwan and generates a branch current, known as the Kuroshio Branch Current (KBC), which intrudes onto the continental shelf of the ECS. Based on observations and numerical modeling, a 1.5-layer reduced-gravity model is evaluated and modified to simulate the flow pattern of the Kuroshio intrusion (KI) northeast of Taiwan. We revised the analytical solution derived by Hsueh (1992), to conserve the horizontal momentum balance in the along-shelf and cross-shelf directions. The new analytical solution not only explains the KI angle but also addresses the KBC recirculation mechanism. To sustain the steady-state momentum balance in the area adjacent to the shelf break northeast of Taiwan, there must be a recirculation that plays the same role in vorticity dynamics as the combination of the joint effect of baroclinicity and relief, bottom friction, and nonlinear advection. Unlike previous studies, our results agree well with the observations and could account for seasonal variations in the KI direction. Moreover, the new model predicts a reasonable velocity maximum (0.42 m s(-1)) over the shelf break. Satellite data and numerical results confirm that the new solution reflects a reasonable estimation for KI direction. This theory may potentially be applied to regions with trenches or valleys with completely different flow patterns by using similar analytical methods.
KeywordEast China Sea Kuroshio Branch Current Kuroshio intrusion reduced‐ gravity model
DOI10.1029/2020JC016248
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[41876019] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19060203] ; National Key Research Development Program of China[2017YFC1404000] ; National Key Research Development Program of China[2016YFC1401601] ; National Key Research Development Program of China[2017YFA0604102] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1406401] ; project A Forecasting System to Provide Early Warnings for Coastal Ecological Disasters (harmful algal blooms and harmful jellyfish blooms - Chinese Academy of Sciences ; project A Forecasting System to Provide Early Warnings for Coastal Ecological Disasters (harmful algal blooms and harmful jellyfish blooms - Commonwealth Scientific and Industrial Research Organization (CSIRO) ; High Performance Computing Center at the Institute of Oceanology Chinese Academy of Sciences (IOCAS) ; Youth Innovation Promotion Association CAS
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000624429800015
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/170139
Collection海洋环流与波动重点实验室
Corresponding AuthorYang, Dezhou; Yin, Baoshu
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
5.CSIRO Oceans & Atmosphere, Crawley, WA, Australia
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Cui, Xuan,Yang, Dezhou,Sun, Chaojiao,et al. New Insight Into the Onshore Intrusion of the Kuroshio Into the East China Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2021,126(2):19.
APA Cui, Xuan.,Yang, Dezhou.,Sun, Chaojiao.,Feng, Xingru.,Gao, Guandong.,...&Yin, Baoshu.(2021).New Insight Into the Onshore Intrusion of the Kuroshio Into the East China Sea.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,126(2),19.
MLA Cui, Xuan,et al."New Insight Into the Onshore Intrusion of the Kuroshio Into the East China Sea".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 126.2(2021):19.
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