| A survey of baroclinic tides in the Beibu Gulf in the South China Sea |
| |
| 作者姓名： | CHEN Ju WANG Dongxiao SHI Ping DU Yan |
| |
| 作者单位： | CHEN Ju1，WANG Dongxiao1，SHI Ping1，DU Yan11.Key Laboratory of Tropical Marine and Environmental Dynamics，South China Sea Institute of Oceanology，Chinese Academy of Sciences，Guangzhou 510301，China |
| |
| 基金项目： | 国家自然科学基金
,
中国科学院基金 |
| |
| 摘 要： | The principal characteristics of the tides are investigated by a shipborne acoustic Doppler current Profiler at a fixed station located in the Beibu Gulf from 4 to 14 April 2003. Data analysis indicates that the diurnal tidal currents dominate local current variations at the observing site. Except the barotropic M_2 constituent, four principal tides comprise both back-and-forth barotropic and baroclinic tidal currents. The baroclinic tidal ellipse parameters vary with depth, showing complicate features, rather than monotonous features being figured. For baroclinic tidal constituents, vertical modes are different to each other. Similarly, the semi-major axes of the tidal constituents vary with depth. In the lower layer, a nonlinear regression approach is used to calculate and obtain the SEMA profiles of diurnal tidal constituents. Results show that in the thin bottom boundary layer, all of the parameters vary drastically with depth, totally distinguished from the vertical profiles above.
|
| 关 键 词： | 南中国海 北部湾地区 海洋 垂直结构 潮汐 |
| 收稿时间： | 2006/12/12 0:00:00 |
| 修稿时间： | 2006-12-122007-05-14 |
A survey of baroclinic tides in the Beibu Gulf in the South China Sea |
| |
| CHEN Ju,WANG Dongxiao,SHI Ping,DU Yan.A survey of baroclinic tides in the Beibu Gulf in the South China Sea[J].Acta Oceanologica Sinica,2007,26(4):7-19. |
| |
| Authors: | CHEN Ju WANG Dongxiao SHI Ping and DU Yan |
| |
| Institution: | Key Laboratory of Tropical Marine and Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China |
| |
| Abstract: | The principal characteristics of the tides are investigated by a shipborne acoustic Doppler current Profiler at a fixed station located in the Beibu Gulf from 4 to 14 April 2003. Data analysis indicates that the diurnal tidal currents dominate local current variations at the observing site. Except the barotropic M_2 constituent, four principal tides comprise both back-and-forth barotropic and baroclinic tidal currents. The baroclinic tidal ellipse parameters vary with depth, showing complicate features, rather than monotonous features being figured. For baroclinic tidal constituents, vertical modes are different to each other. Similarly, the semi-major axes of the tidal constituents vary with depth. In the lower layer, a nonlinear regression approach is used to calculate and obtain the SEMA profiles of diurnal tidal constituents. Results show that in the thin bottom boundary layer, all of the parameters vary drastically with depth, totally distinguished from the vertical profiles above. |
| |
| Keywords: | vertical structure baroclinic tidal current Beibu Gulf |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 |
