Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
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 |
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 | |
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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