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Difference between the Lagrangian trajectories and Eulerian residual velocity fields in the southwestern Yellow Sea
Wang, Bin1; Hirose, Naoki1,2; Moon, Jae-Hong3; Yuan, Dongliang4,5; Wang, B
2013-05-01
发表期刊OCEAN DYNAMICS
ISSN1616-7341
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
DOI10.1007/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
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被引频次:14[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
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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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