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

doi:10.1007/s10236-013-0607-3

IOCAS-IR > 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 ; Wang, B
	2013-05-01
发表期刊	OCEAN DYNAMICS
ISSN	1616-7341
卷号	63 期号:5 页码:565-576
文章类型	Article
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.; 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.
关键词	Eulerian Residual Velocity Eulerian Tidal Residual Current Yellow Sea Lagrangian Drifter Bottom Friction Parameterization
学科领域	Oceanography
DOI	10.1007/s10236-013-0607-3
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000318515300008
WOS关键词	EAST CHINA SEAS ; STRATIFIED TIDAL RECTIFICATION ; FINITE-AMPLITUDE BANKS ; MEAN CIRCULATION ; CURRENTS ; MODEL ; ESTUARIES ; ADVECTION ; MASS
WOS标题词	Science & Technology ; Physical Sciences
引用统计	被引频次：13[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/337002/16398
专题	海洋环流与波动重点实验室
通讯作者	Wang, B
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,&Wang, B.(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.

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