Influence of mesoscale eddies on the cross-shelf phosphate transport of the Kuroshio Current northeast of Taiwan: A modeling study

doi:10.3389/fmars.2022.1079418

IOCAS-IR > 海洋环流与波动重点实验室

	Influence of mesoscale eddies on the cross-shelf phosphate transport of the Kuroshio Current northeast of Taiwan: A modeling study
	Xu, Lingjing 1,2,3,4; Yang, Dezhou 1,2,3,4,5; Feng, Xingru 1,2,3,4,5; Sun, Junchuan2,6 ; Gao, Guandong 1,2,3,4,5; Cui, Xuan 1,2,3,4; Yin, Baoshu 1,2,3,4,5
	2023-01-19
发表期刊	FRONTIERS IN MARINE SCIENCE
卷号	9 页码:17
通讯作者	Yang, Dezhou(yangdezhou@qdio.ac.cn) ; Yin, Baoshu(bsyin@qdio.ac.cn)
摘要	The Kuroshio Current flows northeastward along the East China Sea (ECS) shelf break, carrying a large amount of nutrients, and is thus an important source of nutrients for the ECS. The mainstream and transport of the Kuroshio Current are significantly affected by mesoscale eddies. However, the influence of mesoscale eddies on the Kuroshio nutrient input into the ECS is unknown. We add constructed cyclonic and anticyclonic eddies to a hydrodynamic model to explore the influence of mesoscale eddies on cross-shelf Kuroshio phosphate input into the ECS. This model suitably reproduces the fate of mesoscale eddies and the variation in the Kuroshio Current during eddy-current interactions. The simulation results reveal that during the strong interaction between the Kuroshio Current and mesoscale eddy east of Taiwan, the cyclonic eddy reduces the on-shelf phosphate flux, while the anticyclonic eddy increases the Kuroshio phosphate input to the ECS. When the anticyclonic eddy moves to the Okinawa Trough, it reduces the Kuroshio phosphate input into the ECS.These basic features are not sensitive to the initial latitude of the eddy center east of Taiwan. The change in cross-shelf phosphate flux is caused by the changes in cross-shelf velocity and phosphate concentration along the shelf. Momentum balance analyses suggest that the change in cross-shelf velocity is mainly caused by the change in the pressure gradient term due to eddy-induced changes in sea surface height in the horizontal direction and isotherm tilting in the vertical direction. The advection-diffusion equation analysis shows that the change in phosphate concentration along the shelf is attributed to changes in the upper horizontal advection and lower vertical advection of phosphate, which are induced by the upper phosphate change and vertical velocity change along the shelf, respectively. This study has important implications for the possible response of the ECS ecosystem to mesoscale eddies that are partly triggered by enhanced typhoons east of Taiwan under global warming.
关键词	cross-shelf transport Kuroshio Current mesoscale eddy phosphate numerical simulation
DOI	10.3389/fmars.2022.1079418
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19060202] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19060203] ; National Natural Science Foundation of China (NSFC)[42206011] ; National Natural Science Foundation of China (NSFC)[92158202] ; National Natural Science Foundation of China (NSFC)[41876019] ; National Natural Science Foundation of China (NSFC)[42076022] ; National Natural Science Foundation of China (NSFC)[42090044] ; Shandong Provincial Natural Science Foundation[ZR2020QD064] ; China Postdoctoral Science Foundation[2020M682218] ; Laoshan Laboratory Science and Technology Innovation Project ; High Performance Computing Center at the IOCAS ; Youth Innovation Promotion Association CAS
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:000923817700001
出版者	FRONTIERS MEDIA SA
WOS关键词	EAST-CHINA-SEA ; LUZON STRAIT ; SUBTROPICAL COUNTERCURRENT ; INTERANNUAL VARIABILITY ; ONSHORE INTRUSION ; EDDY ; WATER ; SURFACE ; MODULATION ; NUTRIENTS
引用统计	被引频次：2[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/337002/183429
专题	海洋环流与波动重点实验室海洋生态与环境科学重点实验室
通讯作者	Yang, Dezhou; Yin, Baoshu
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao, Peoples R China 5.Univ Chinese Acad Sci, Coll Marine Sci, Beijing, Peoples R China 6.Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Sci & Numer Modeling, Qingdao, 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	Xu, Lingjing,Yang, Dezhou,Feng, Xingru,et al. Influence of mesoscale eddies on the cross-shelf phosphate transport of the Kuroshio Current northeast of Taiwan: A modeling study[J]. FRONTIERS IN MARINE SCIENCE,2023,9:17.
APA	Xu, Lingjing.,Yang, Dezhou.,Feng, Xingru.,Sun, Junchuan.,Gao, Guandong.,...&Yin, Baoshu.(2023).Influence of mesoscale eddies on the cross-shelf phosphate transport of the Kuroshio Current northeast of Taiwan: A modeling study.FRONTIERS IN MARINE SCIENCE,9,17.
MLA	Xu, Lingjing,et al."Influence of mesoscale eddies on the cross-shelf phosphate transport of the Kuroshio Current northeast of Taiwan: A modeling study".FRONTIERS IN MARINE SCIENCE 9(2023):17.