| 黄河2009年调水调沙期间河口水动力及悬沙输移变化特征 |
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| 引用本文： | 刘锋,陈沈良,周永东,彭俊,陈一强,任韧希子.黄河2009年调水调沙期间河口水动力及悬沙输移变化特征[J].泥沙研究,2010(6). |
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| 作者姓名： | 刘锋 陈沈良 周永东 彭俊 陈一强 任韧希子 |
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| 作者单位： | 华东师范大学河口海岸学国家重点实验室; |
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| 基金项目： | 海洋公益性行业科研专项经费，河口海岸学国家重点实验室科研业务课题 |
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| 摘 要： | 根据2009年7月黄河第九次调水调沙期间和结束后在黄河口两个站位观测的水文泥沙资料,对调水调沙期间和结束后河口的水动力和悬沙分布特征进行了对比分析,并对潮周期内悬沙输移过程进行了探讨.结果表明:调水调沙期间相比于结束后,落潮动力加强,涨潮动力有所减弱,尤其在水体表层表现明显,河口切变锋类型不同,其出现时间长度亦不同;调水调沙期间含沙量较大,垂向分布较复杂,而结束后含沙量低,垂向梯度变化较小;此外,调水调沙期间河口悬沙在输移过程中以沉降作用为主,并在涨急和落急时刻伴随着底沙的再悬浮,而结束后悬沙浓度降低幅度较大,泥沙再悬浮作用较强.
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| 关 键 词： | 调水调沙 黄河口 水动力 切变锋 悬沙输移 |
Effect of water-sediment regulation in Yellow River on hydrodynamics and suspended sediment transport in its estuary |
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| LIU Feng,CHEN Shen-liang,ZHOU Yong-dong,PENG Jun,CHEN Yi-qiang,REN Ren-xi-zi.Effect of water-sediment regulation in Yellow River on hydrodynamics and suspended sediment transport in its estuary[J].Journal of Sediment Research,2010(6). |
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| Authors: | LIU Feng CHEN Shen-liang ZHOU Yong-dong PENG Jun CHEN Yi-qiang REN Ren-xi-zi |
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| Affiliation: | LIU Feng,CHEN Shen-liang,ZHOU Yong-dong,PENG Jun,CHEN Yi-qiang,REN Ren-xi-zi(State Key Laboratory of Estuarine and Coastal Research,East China Normal University,Shanghai 200062,China) |
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| Abstract: | On the basis of the measurements of current velocity and suspended sediment at the two stations in the Yellow River Estuary during and after the water-sediment regulation period in July 2009,the hydrodynamics and distribution of suspended sediment are analyzed by comparing their characteristics in and after the water-sediment regulation period.Additionally,the transport process of suspended sediment in the estuary in the tidal cycle during the period of water-sediment regulation is discussed.The results sho... |
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| Keywords: | water-sediment regulation Yellow River Estuary hydrodynamics tidal shear front suspended sediment transport |
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