| 南汇嘴边滩地形演变及其分析 |
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| 引用本文： | 左书华,李蓓,杨华.南汇嘴边滩地形演变及其分析[J].水道港口,2007,28(2):108-112. |
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| 作者姓名： | 左书华 李蓓 杨华 |
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| 作者单位： | 交通部天津水运工程科学研究所,工程泥沙交通行业重点实验室,天津300456 |
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| 摘 要： | 南汇嘴边滩处于长江口和杭州湾的交接地带,受长江口和杭州湾北岸两股往复性潮流的控制,特定的水动力泥沙环境,决定了南汇嘴边滩长期以来的演变特点:边滩发育基本稳定;边滩外形基本保持不变;主要呈整体向东南方向移动的趋势。根据已有的1998~2005年断面数据资料分析了南汇嘴附近海域近期的地形演变情况,并对其影响因素——动力因素、泥沙絮凝、长江入海水沙变化以及近岸水利工程建设进行了分析。
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| 关 键 词： | 南汇嘴 长江口 地形演变 |
| 文章编号： | 1005-8443（2007）02-0108-05 |
| 修稿时间： | 2006-11-07 |
Topography evolution and analysis of Nanhui nearshore |
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| ZUO Shu-hua,LI Bei,YANG Hua.Topography evolution and analysis of Nanhui nearshore[J].Journal of Waterway and Harbour,2007,28(2):108-112. |
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| Authors: | ZUO Shu-hua LI Bei YANG Hua |
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| Institution: | Tianjin Research Institute of Water Transport Engineering, Key Laboratory of Engineering Sediment of Ministry of Communications, Tianjin 300456, China |
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| Abstract: | Nanhui nearshore is a transitional zone situated in a special area between the Yangtze Estuary and Hangzhou Bay.It is controlled by the to-and-pro tidal current of the Yangtze Estuary and north shore of Hangzhou Bay.Specified dynamics and sediment environment result in these characteristics of Nanhui nearshore.These characteristics are steady-going evolution,changeless shape and extending southeast ward as a whole.Based on a great amount of hydrological and sedimerit data and the topographic section data from 1998 to 2005,the recent characteristics of topography evolution of Nanhui nearshore are discussed,and the effect of the changes of ocean dynamics,sediment flocculation,sediment flux to the sea and the constructions of some great coastal engineering projects are analyzed. |
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| Keywords: | Yangtze Estuary Nanhui nearshore topography evolution |
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