| 防城港湾及其邻近海域潮流和余流特征研究 |
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| 引用本文： | 陈波,陈宪云,牙韩争,徐智昕,侍茂崇.防城港湾及其邻近海域潮流和余流特征研究[J].海洋湖沼通报,2020(3):16-23. |
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| 作者姓名： | 陈波 陈宪云 牙韩争 徐智昕 侍茂崇 |
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| 作者单位： | 广西科学院广西近海海洋环境科学重点实验室;中国海洋大学海洋与大气学院 |
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| 基金项目： | 国家自然科学基金(41576024);广西重点研发计划项目(桂科AB16380282)资助。 |
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| 摘 要： | 利用2011年5月1日~2012年4年30日广西防城港白龙半岛附近S1站表、中、底三层剖面海流观测数据进行潮、余流特征分析,得出如下结论:潮汐属于正规全日潮类型,潮流性质则为不规则半日潮流,主要日分潮K1、O1的振幅分别为87.5cm和94.3cm。正常天气期间,S1站实测流速小于50cm/s,余流流速小于20cm/s。台风影响期间,表、中、底层最大实测流速分別为103.7,94.1,71.0 cm/s,余流流速分別为39.7,32.4,20.7 cm/s,风应力对余流起主要作用;余流流向,夏季以WSW流为主,这是由于夏季西南季风造成沿岸水的堆积产生正压梯度力使流向往西南流的缘故,冬季以SE向流为主,这是由于该站周围特殊地形的原因。
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| 关 键 词： | 防城港湾 潮流 余流 特征分析 |
Research on the characteristics of tidal and residual current in the Fangchenggang Bay and its adjacent waters |
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| CHEN Bo,CHEN Xian-yun,YA Han-zheng,XU Zhi-xin,SHI Mao-chong.Research on the characteristics of tidal and residual current in the Fangchenggang Bay and its adjacent waters[J].Transaction of Oceanology and Limnology,2020(3):16-23. |
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| Authors: | CHEN Bo CHEN Xian-yun YA Han-zheng XU Zhi-xin SHI Mao-chong |
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| Institution: | (Guangxi Key Laboratory of Marine Environmental Science,Guangxi Academy of Sciences,Nanning 530007,China;Ocean University of China,College of Oceanic and Atmospheric Sciences,Qingdao266003,China) |
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| Abstract: | The characteristics of tidal and residual current in the Bailong Peninsula,Fangchenggang,Guangxi,were analyzed based on the observation data of the surface,middle and bottom layers of the S1 station from May 1,2011 to Apr 30,2012.The tide type of the S1 station is regular diurnal tide,and the tidal current is irregular semidiurnal tide.The amplitudes of the main diurnal tides K1 and O1 are 87.5 cm and 94.3 cm,respectively.In normal conditions,the current velocity of the S1 station is less than 50 cm/s,and the residual current velocity is less than 20 cm/s.The maximum velocity of the surface,middle and bottom layers under typhoon conditions are 103.7,94.1 and 71.0 cm/s,respectively,and the residual velocity are 39.7,32.4 and 20.7 cm/s,respectively.Wind stress plays a major role in residual flow.In summer,the residual current direction was WSW mainly.This is mainly due to the positive pressure gradient caused by the accumulation of coastal current during summer monsoon.In winter,the main stream was SE due to the special terrain. |
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| Keywords: | Fangchenggang Bay tidal current residual current characteristic analysis |
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