| 长江口北槽南导堤越堤输沙运动的时空变化特征研究 |
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| 引用本文： | 刘猛,吴华林,李为华,郭文华,刘高峰.长江口北槽南导堤越堤输沙运动的时空变化特征研究[J].海洋学报,2013,35(2):161-167. |
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| 作者姓名： | 刘猛 吴华林 李为华 郭文华 刘高峰 |
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| 作者单位： | 上海河口海岸科学研究中心河口海岸交通行业重点实验室,上海,201201 |
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| 基金项目： | 国家自然科学基金(41206072);国家自然科学基金重点项目(50939003);国家973计划项目(2010CB429002)。 |
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| 摘 要： | 通过现场观测对长江口北槽南导堤越堤输沙运动的时空变化特征进行的研究表明:(1)南导堤沿程各测点各涨落潮过程单宽越堤净输沙量存在良好的线性相关关系；(2)S4—S7和S2—S3区段越堤输沙强度大,是主要输沙通道；(3)南导堤年平均越堤净输沙量约为296.6 Mt,其中洪季、枯季分别占年均越堤净输沙量的62.24％和37.76％.
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| 关 键 词： | 长江口深水航道治理工程 南导堤 现场观测 越堤净输沙量 |
| 收稿时间： | 2010/7/27 0:00:00 |
| 修稿时间： | 2012/11/6 0:00:00 |
The temporal and spatial variations of the sediment flux overtopping the South Leading Jetty in the North Passage of the Changjiang Estuary |
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| LIU Meng,WU Hualin,LI Weihu,GUO Wenhua and LIU Gaofeng.The temporal and spatial variations of the sediment flux overtopping the South Leading Jetty in the North Passage of the Changjiang Estuary[J].Acta Oceanologica Sinica (in Chinese),2013,35(2):161-167. |
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| Authors: | LIU Meng WU Hualin LI Weihu GUO Wenhua and LIU Gaofeng |
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| Institution: | Key Laboratory of Ministry of Communications for Estuarie & Coastal Engineering, Shanghai Estuarine and Coastal Research Center, Shanghai 201201 China;Key Laboratory of Ministry of Communications for Estuarie & Coastal Engineering, Shanghai Estuarine and Coastal Research Center, Shanghai 201201 China;Key Laboratory of Ministry of Communications for Estuarie & Coastal Engineering, Shanghai Estuarine and Coastal Research Center, Shanghai 201201 China;Key Laboratory of Ministry of Communications for Estuarie & Coastal Engineering, Shanghai Estuarine and Coastal Research Center, Shanghai 201201 China;Key Laboratory of Ministry of Communications for Estuarie & Coastal Engineering, Shanghai Estuarine and Coastal Research Center, Shanghai 201201 China |
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| Abstract: | The temporal and spatial variations of the net sediment flux overtopping the South Leading Jetty in the North Passage of the Changjiang Estuary are studied based on the field measured data.The results show that: (1) timely varying unit width net overtopping sediment flux has a good linear relationship at each field measuring stations along the South Leading Jetty; (2) sections of S4 to S7 jetty and S2 to S3 jetty are the leading sediment overtopping channel with extreamly high sediment transportation rate;and(3) Annual averaged net sediment flux overtopping the South Leading Jetty is about 296.6Mt, 62.24% of which happens in the flood season and 37.76% does in the dry season. |
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| Keywords: | Changjiang Estuary Deepwater Channel Regulation Project South Leading Jetty field measurement net overtopping sediment flux |
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