| 南海文昌海域内孤立波特征观测研究 |
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| 引用本文： | 柯自明,尹宝树,徐振华,侯一筠.南海文昌海域内孤立波特征观测研究[J].海洋与湖沼,2009,40(3):269-274. |
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| 作者姓名： | 柯自明 尹宝树 徐振华 侯一筠 |
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| 作者单位： | 1. 中国科学院海洋研究所 中国科学院海洋环流与波动重点实验室 青岛 266071;中国科学院研究生院 北京 100049
2. 中国科学院海洋研究所 中国科学院海洋环流与波动重点实验室 青岛 266071 |
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| 基金项目： | 国家863资助项目;2006AA09A109-2号和中国科学院知识创新工程重大项目资助 |
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| 摘 要： | 内孤立波对大陆架边缘海区的混合和生态有着显著影响，近年来已成为物理海洋学研究的热点。但是南海北部陆架的内波现场资料极为缺乏。2005年4—7月，中国科学院海洋研究所在文昌海区进行了文昌内波实验。通过此次现场观测数据发现，在4月下旬文昌海域有着强盛的内孤立波，其振幅在40m左右，产生的斜压流接近1m／s，且传播方向平行于等深线切线方向，向西南方向传播。分析还得出此类内孤立波并非发源于吕宋海峡，应该属于潮地相互作用局地生成的内孤立波。
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| 关 键 词： | 南海 文昌 内孤立波 现场观测 斜压流 |
| 收稿时间： | 2008/10/5 0:00:00 |
| 修稿时间： | 2009/2/14 0:00:00 |
THE CHARACTERISTICS OF INTERNAL SOLITARY WAVES AT WENCHANG IN THE SOUTH CHINA SEA |
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| KE Zi-Ming,YIN Bao-Shu,XU Zhen-Hua and HOU Yi-Jun.THE CHARACTERISTICS OF INTERNAL SOLITARY WAVES AT WENCHANG IN THE SOUTH CHINA SEA[J].Oceanologia Et Limnologia Sinica,2009,40(3):269-274. |
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| Authors: | KE Zi-Ming YIN Bao-Shu XU Zhen-Hua and HOU Yi-Jun |
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| Institution: | Institute of Oceanology, Chinese Academy of Sciences, Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Science;Institute of Oceanology, Chinese Academy of Sciences, Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Science;Institute of Oceanology, Chinese Academy of Sciences, Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Science;Institute of Oceanology, Chinese Academy of Sciences, Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Science |
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| Abstract: | Thermistor chains and acoustic Doppler current profiles were deployed at the east of Hainan Island to examine the thermal and hydrodynamic structure of the Wenchang Shelf. These instruments sampled temperature every minute and current velocity every 10 min from April 17th to July 21 in 2005. Analysis of the time series revealed that the in situ data were dominated by internal solitary wave packets signals. We found large-amplitude nonlinear internal solitary waves at the end of April and they propagated to the southwest paralleling with the isobaths in this area. They probably resulted from the local shelf break and were rarely observed in SAR data. |
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| Keywords: | South China Sea Wenchang Internal solitary wave Observation Baroclinic current |
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