| 风暴对长江河口北槽冲淤影响的数值模拟--以"杰拉华"台风为例 |
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| 引用本文： | 丁平兴,胡克林,孔亚珍,胡德宝.风暴对长江河口北槽冲淤影响的数值模拟--以"杰拉华"台风为例[J].泥沙研究,2003(6):18-24. |
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| 作者姓名： | 丁平兴 胡克林 孔亚珍 胡德宝 |
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| 作者单位： | 1. 华东师范大学,河口海岸国家重点实验室,上海,200062
2. 国家海洋局,东海分局预报区台,上海,200081 |
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| 基金项目： | 国家科技攻关与"973"项目(2002CB412403);上海市重点学科建设项目成果 |
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| 摘 要： | 台风产生大浪及增水常常侵蚀岸滩,掀动底部泥沙,使水体含沙量剧增;部分泥沙在水流作用下进入航槽并在那里落淤,严重时会影响航槽航运安全,因而定量地预测台风对航槽冲淤可能造成的影响非常重要。本文以“杰拉华”台风为例,提出计算风暴引起长江口北槽航槽冲淤变化的模型与方法,并讨论若“杰拉华”台风适逢天文大潮或大洪水时对长江口北槽冲淤变化的影响。
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| 关 键 词： | 长江口 杰拉华台风 冲淤变化 数值模拟 |
| 文章编号： | 0468-155X(2003)06-0018-07 |
| 修稿时间： | 2003年5月13日 |
Numerical Simulation of Storm-induced Erosion/Deposition in Yangtze Estuary --A Case Study of Typhoon Jelawat |
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| DING Ping-xing ,HU Ke-lin ,KONG Ya-zhen ,HU De-bao.Numerical Simulation of Storm-induced Erosion/Deposition in Yangtze Estuary --A Case Study of Typhoon Jelawat[J].Journal of Sediment Research,2003(6):18-24. |
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| Authors: | DING Ping-xing HU Ke-lin KONG Ya-zhen HU De-bao |
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| Affiliation: | DING Ping-xing 1,HU Ke-lin 1,KONG Ya-zhen 1,HU De-bao 2 |
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| Abstract: | The storm-induced surges and set-ups often erode coasts and flats,and make suspended sediment concentration rise.Some sediment carried by currents can move into navigation channels and deposit there,which affects navigation safety in some serious situations.It is of great importance to predict quantitatively the storm-induced sedimentation in the channel.In this paper,taking Typhoon Jelawart as an example, the numerical model and computational method of storm-induced erosion/deposition are introduced.In the situations that the typhoon encounters the spring tide or the bigger flood,erosion/deposition in the North Passage of the Yangtze Estuary is discussed. |
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| Keywords: | Yangtze Estuary Typhoon Jelawat erosion/deposition numerical simulation |
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