Sediment dynamics and estuarine circulation in the turbidity maximum of the Elbe river
Sediment dynamics and estuarine circulation in the turbidity maximum of the Elbe river
复制标题
易北河最大浊度时的泥沙动力学和河口环流
DOI：
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复制
发表时间：
1995
期刊：
影响因子：
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通讯作者：
H. Fanger
中科院分区：
文献类型：
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作者：
J. Kappenberg;G. Schymura;H. Fanger
本文介绍了北方德国易北河口不同深度、不同纵向和横截面位置的水、盐和悬浮颗粒物（SPM）的残留输运的几个活动的数据。SPM的潮内行为进行了分析和解释的周期性沉降和再悬浮。叠加在这些局部过程是平流水平输送的水和悬浮颗粒物在不同的垂直层。计算了不同深度的盐度和SPM的潮汐平均水平通量。在大多数情况下，它们显示在底层的上游定向传输，而在上层水柱SPM被带到大海。垂直盐度梯度对SPM动态的影响，水和SPM的残留运输的横向变化，以及径流峰值的影响的例子也被提出。
Data are presented from several campaigns concerning to the residual transport of water, salt and suspended particulate matter (SPM) at different depths and at different longitudinal and cross-sectional locations in the Elbe Estuary, Northern Germany. The intratidal behaviour of SPM is analysed and explained in terms of cyclic settling and resuspension. Superimposed on these local processes are advective horizontal transports of water and SPM in different vertical layers. Tidally averaged horizontal fluxes of salinity and SPM have been calculated at different depths. For the most part, they show upstream directed transport in the bottom layers, while in the upper water column SPM is carried towards the sea. Examples of the influence of vertical salinity gradients on SPM dynamics, of the lateral variation of residual transport of water and SPM, and the effects of a runoff peak are also presented.