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| 三沙湾纳潮量及湾内外的水交换 | |
| 引用本文： | 叶海桃,王义刚,曹兵.三沙湾纳潮量及湾内外的水交换[J].河海大学学报(自然科学版),2007,35(1):96-98. |
| 作者姓名： | 叶海桃 王义刚 曹兵 |
| 作者单位： | 1. 河海大学海岸灾害及防护教育部重点实验室,江苏,南京,210098 2. 河海大学海岸灾害及防护教育部重点实验室,江苏,南京,210098;河海大学海洋学院,江苏,南京,210098 3. 河海大学海洋学院,江苏,南京,210098 |
| 基金项目： | 国家自然科学基金 , 国家908专项项目 |
| 摘 要： | 根据三沙湾多年实测潮位资料和2个临时潮位站的实测资料,分析了三沙湾潮汐特征,计算了纳潮量、海水的平均交换率和海水半更换期.结果表明:三沙湾潮差较大,有较强的纳潮能力.但由于其水域面积较大,地形也比较复杂,其整个区域海水的平均“更新能力”一般.当潮差累积率为20%(大潮)时,三沙湾的海水半更换期约为36个潮周期;当潮差累积率为50%(中潮)时,海水半更换期约为75个潮周期;当潮差累积率为80%(小潮)时,海水半更换期达到114个潮周期. |
| 关 键 词： | 三沙湾 纳潮量 平均交换率 海水半更换期 |
| 文章编号： | 1000-1980（2007）01-0096-03 |
| 修稿时间： | 2006-04-18 |
Tidal prism of Sansha Bay and its water exchange with the open sea |
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| YE Hai-tao,WANG Yi-gang,CAO Bing.Tidal prism of Sansha Bay and its water exchange with the open sea[J].Journal of Hohai University (Natural Sciences ),2007,35(1):96-98. | |
| Authors: | YE Hai-tao WANG Yi-gang CAO Bing |
| Institution: | 1. Key Laboratory of Coastal Disaster and Defence, Ministry of Education, Hohai University, Nanjing 210098, China ; 2. College of Ocean, Hohai University, Nanjing 210098, China |
| Abstract: | Based on the measured data of two temporary tide stations and tidal data of many years of the Sansha Bay,the tidal characteristics of the Sansha Bay were analyzed,and the tidal prism,the average exchange rate and the half-exchange period of sea water were calculated.The result shows that the Sansha Bay is of high capacity in receiving tidal water,and that it has wide tidal ranges but low capacity of sea water exchange due to wide water areas and the complex landform,the half-exchange period of sea water of the Sansha Bay being about 36 tidal periods,75 tidal periods,and 114 tidal periods as the accumulation rate of tidal ranges reaches 20%(spring tide),50%(moderate tide),and 80%(neap tide),respectively. |
| Keywords: | Sansha Bay tidal prism average exchange rate half-exchange period of sea water |
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