Difference between the Lagrangian trajectories and Eulerian residual velocity fields in the southwestern Yellow Sea

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Difference between the Lagrangian trajectories and Eulerian residual velocity fields in the southwestern Yellow Sea
	Wang, Bin 1; Hirose, Naoki 1,2; Moon, Jae-Hong 3; Yuan, Dongliang4,5
刊名	OCEAN DYNAMICS
	2013-05-01
卷号	63 期号:5 页码:565-576
关键词	Eulerian residual velocity Eulerian tidal residual current Yellow Sea Lagrangian drifter Bottom friction parameterization
ISSN号	1616-7341
通讯作者	Wang, B
中文摘要	The responses to tidal and/or wind forces of Lagrangian trajectories and Eulerian residual velocity in the southwestern Yellow Sea are investigated using a high-resolution circulation model. The simulated tidal harmonic constants agree well with observations and existing studies. The numerical experiment reproduces the long-range southeastward Eulerian residual current over the sloping bottom around the Yangtze Bank also shown in previous studies. However, the modeled drifters deployed at the northeastern flank of the Yangtze Bank in the simulation move northeastward, crossing over this strong southeastward Eulerian residual current rather than following it. Additional sensitivity experiments reveal that the influence of the Eulerian tidal residual currents on Lagrangian trajectories is relatively weaker than that of the wind driven currents. This result is consistent with the northeastward movement of ARGOS surface drifters actually released in the southwestern Yellow Sea. Further experiments suggest that the quadratic nature of the bottom friction is the crucial factor, in the southwestern Yellow Sea, for the weaker influence of the Eulerian tidal residual currents on the Lagrangian trajectories. This study demonstrates that the Lagrangian trajectories do not follow the Eulerian residual velocity fields in the shallow coastal regions of the southwestern Yellow Sea.
英文摘要	The responses to tidal and/or wind forces of Lagrangian trajectories and Eulerian residual velocity in the southwestern Yellow Sea are investigated using a high-resolution circulation model. The simulated tidal harmonic constants agree well with observations and existing studies. The numerical experiment reproduces the long-range southeastward Eulerian residual current over the sloping bottom around the Yangtze Bank also shown in previous studies. However, the modeled drifters deployed at the northeastern flank of the Yangtze Bank in the simulation move northeastward, crossing over this strong southeastward Eulerian residual current rather than following it. Additional sensitivity experiments reveal that the influence of the Eulerian tidal residual currents on Lagrangian trajectories is relatively weaker than that of the wind driven currents. This result is consistent with the northeastward movement of ARGOS surface drifters actually released in the southwestern Yellow Sea. Further experiments suggest that the quadratic nature of the bottom friction is the crucial factor, in the southwestern Yellow Sea, for the weaker influence of the Eulerian tidal residual currents on the Lagrangian trajectories. This study demonstrates that the Lagrangian trajectories do not follow the Eulerian residual velocity fields in the shallow coastal regions of the southwestern Yellow Sea.
学科主题	Oceanography
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Oceanography
研究领域[WOS]	Oceanography
关键词[WOS]	EAST CHINA SEAS ; STRATIFIED TIDAL RECTIFICATION ; FINITE-AMPLITUDE BANKS ; MEAN CIRCULATION ; CURRENTS ; MODEL ; ESTUARIES ; ADVECTION ; MASS
收录类别	SCI
原文出处	10.1007/s10236-013-0607-3
语种	英语
WOS记录号	WOS:000318515300008
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16398]
专题	海洋研究所_海洋环流与波动重点实验室
作者单位	1.Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Dept Earth Syst Sci & Technol, Kasuga, Fukuoka 816, Japan 2.Kyushu Univ, Appl Mech Res Inst, Kasuga, Fukuoka 816, Japan 3.CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA 4.Chinese Acad Sci, Key Lab Ocean Circulat & Wave, Qingdao, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Wang, Bin,Hirose, Naoki,Moon, Jae-Hong,et al. Difference between the Lagrangian trajectories and Eulerian residual velocity fields in the southwestern Yellow Sea[J]. OCEAN DYNAMICS,2013,63(5):565-576.
APA	Wang, Bin,Hirose, Naoki,Moon, Jae-Hong,&Yuan, Dongliang.(2013).Difference between the Lagrangian trajectories and Eulerian residual velocity fields in the southwestern Yellow Sea.OCEAN DYNAMICS,63(5),565-576.
MLA	Wang, Bin,et al."Difference between the Lagrangian trajectories and Eulerian residual velocity fields in the southwestern Yellow Sea".OCEAN DYNAMICS 63.5(2013):565-576.