Upstream Extension of a Bottom-Advected Plume and Its Mechanism: The Case of the Yellow River

doi:10.1175/JPO-D-20-0235.1

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Upstream Extension of a Bottom-Advected Plume and Its Mechanism: The Case of the Yellow River
	Yu, Xiaojie 1,2; Guo, Xinyu 1,3; Gao, Huiwang 1,2; Zou, Tao 4
刊名	JOURNAL OF PHYSICAL OCEANOGRAPHY
	2021-07-01
卷号	51 期号:7 页码:2351-2371
关键词	Estuaries Baroclinic flows Buoyancy Freshwater Tides Numerical analysis modeling
ISSN号	0022-3670
DOI	10.1175/JPO-D-20-0235.1
通讯作者	Guo, Xinyu(guoxinyu@sci.ehime-u.ac.jp)
英文摘要	Hydrographic surveys have revealed that the Yellow River plume propagates in the direction opposite to that of a Kelvin wave (upstream) under a low river discharge condition, but turns downstream as the river discharge increases. A numerical model reproduced the upstream extension of the plume under the low river discharge condition and the transition to the downstream direction under the high river discharge condition, and confirmed that the summer wind is not the necessary condition for upstream extension of the plume. With the condition of low river discharge, the model also indicated the dependence of the upstream extension of the plume on the tidal range: extending upstream in spring tide but turning downstream in neap tide. The upstream movement of the plume results from the upstream transport of freshwater that depends on the upstream tide-induced residual current around the river mouth and the downstream density-driven current around the offshore plume front. With the condition of high river discharge, the upstream tide-induced residual current cannot compete with the downstream density-driven current and the plume turns downstream. Momentum analysis confirms the important roles of advection term and viscosity term in the condition of low river discharge and the shift to a Coriolis force-dominated system under high river discharge condition. An idealized model study suggests a dimensionless number for the river discharge changing the river plume extension from upstream to downstream under a specific upstream ambient current around the river mouth.
资助项目	National Natural Science Foundation of China[41406029] ; National Natural Science Foundation of China[41906010] ; National Natural Science Foundation of China-Shandong Joint Fund[U1906215] ; National Natural Science Foundation of China-Shandong Joint Fund[U1806211] ; Postdoctoral Research Foundation of China[2018M642701] ; Fundamental Research Funds for Central Universities of the Ministry of Education of China[201512004] ; Youth Foundation of the Shandong Academy of Sciences[2019QN0026]
WOS关键词	CIRCULATION ; DISCHARGE ; FRONT ; MODEL ; FATE ; SEA
WOS研究方向	Oceanography
语种	英语
WOS记录号	WOS:000674887900016
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China-Shandong Joint Fund ; Postdoctoral Research Foundation of China ; Fundamental Research Funds for Central Universities of the Ministry of Education of China ; Youth Foundation of the Shandong Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/29505]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室烟台海岸带研究所_近岸生态与环境实验室
通讯作者	Guo, Xinyu
作者单位	1.Ocean Univ China, Minist Educ, Key Lab Marine Environm & Ecol, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Ehime Univ, Ctr Marine Environm Studies, Matsuyama, Ehime, Japan 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai, Peoples R China
推荐引用方式 GB/T 7714	Yu, Xiaojie,Guo, Xinyu,Gao, Huiwang,et al. Upstream Extension of a Bottom-Advected Plume and Its Mechanism: The Case of the Yellow River[J]. JOURNAL OF PHYSICAL OCEANOGRAPHY,2021,51(7):2351-2371.
APA	Yu, Xiaojie,Guo, Xinyu,Gao, Huiwang,&Zou, Tao.(2021).Upstream Extension of a Bottom-Advected Plume and Its Mechanism: The Case of the Yellow River.JOURNAL OF PHYSICAL OCEANOGRAPHY,51(7),2351-2371.
MLA	Yu, Xiaojie,et al."Upstream Extension of a Bottom-Advected Plume and Its Mechanism: The Case of the Yellow River".JOURNAL OF PHYSICAL OCEANOGRAPHY 51.7(2021):2351-2371.