| A study of internal solitary waves observed on the continental shelf in the northwestern South China Sea |
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| 作者姓名： | XU Zhenhu YIN Baoshu HOU Yijun FAN Zhisong Antony K LIU |
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| 作者单位： | XU Zhenhua,YIN Baoshu,HOU Yijun(Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Ocean Circulation and Waves(KLOCAW), Chinese Academy of Sciences, Qingdao 266071, China);FAN Zhisong(College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China);Antony K LIU(Ocean Sciences Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA) |
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| 基金项目： | The Key Program of Knowledge Innovation Project of Chinese Academy of Sciences under contract No.KZCX1YW-12; the National 863 Program under contract Nos 2008AA09A401 and 2006AA09A109. |
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| 摘 要： | Based on in-situ time series data from the acoustic Doppler current profiler (ADCP) and thermistor chain in Wenchang area, a sequence of internal solitary wave (ISW) packets was observed in September 2005, propagating northwest on the continental shelf of the northwestern South China Sea (SCS). Corresponding to different stratification of the water column and tidal condition, both elevation and depression ISWs were observed at the same mooring location with amplitude of 35 m and 25 m respectively in different days. Regular arrival of the remarkable ISW packets at approximately the diurnal tidal period and the dominance of diurnal internal waves in the study area, strongly suggest that the main energy source of the waves is the diurnal tide. Notice that the wave packets were all riding on the troughs and shoulders of the internal tides, they were probably generated locally from the shelf break by the evolution of the internal tides due to nonlinear and dispersive effects.
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| 关 键 词： | 西北部 中国陆架 内孤立波 资讯系统 数据包 ADCP 流速剖面 热敏电阻 |
| 收稿时间： | 2009/3/24 0:00:00 |
| 修稿时间： | 2010/2/24 0:00:00 |
A study of internal solitary waves observed on the continental shelf in the northwestern South China Sea |
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| XU Zhenhu,YIN Baoshu,HOU Yijun,FAN Zhisong,Antony K LIU.A study of internal solitary waves observed on the continental shelf in the northwestern South China Sea[J].Acta Oceanologica Sinica,2010,29(3):18-25. |
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| Authors: | XU Zhenhu YIN Baoshu HOU Yijun FAN Zhisong and Antony K LIU |
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| Institution: | 1.Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Ocean Circulation and Waves(KLOCAW), Chinese Academy of Sciences, Qingdao 266071, China2.College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China3.Ocean Sciences Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA |
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| Abstract: | Based on in-situ time series data from the acoustic Doppler current profiler (ADCP) and thermistor chain in Wenchang area, a sequence of internal solitary wave (ISW) packets was observed in September 2005, propagating northwest on the continental shelf of the northwestern South China Sea (SCS). Corresponding to different stratification of the water column and tidal condition, both elevation and depression ISWs were observed at the same mooring location with amplitude of 35 m and 25 m respectively in different days. Regular arrival of the remarkable ISW packets at approximately the diurnal tidal period and the dominance of diurnal internal waves in the study area, strongly suggest that the main energy source of the waves is the diurnal tide. Notice that the wave packets were all riding on the troughs and shoulders of the internal tides, they were probably generated locally from the shelf break by the evolution of the internal tides due to nonlinear and dispersive effects. |
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| Keywords: | elevation internal solitary waves diurnal internal tide northwestern South China Sea |
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