Measured Gradients in Alongshore Sediment Transport Along the Dutch Coast
Measured Gradients in Alongshore Sediment Transport Along the Dutch Coast
复制标题
荷兰海岸沿岸沉积物输送的测量梯度
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
M. Stive
中科院分区：
文献类型：
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作者：
S. Vries;D. Schipper;M. Stive
本文的目的是利用荷兰海岸收集的形态学数据来量化大块（冲浪带综合）沿岸沉积物运输。所收集的形态数据覆盖了18公里的沿岸范围，包括海滩、前滩和跨岸的潮间带。测量领域包含2000万立方米的沙子引擎超级营养。利用收集到的数据计算了跨岸剖面的详细体积变化。根据计算得到的跨岸剖面的体积变化，可以推导出沿岸输运的梯度。在本文的范围内，我们推导了考虑三个时期的沿岸运输梯度；（一）期限为一年；2)两个月的轻微海浪；4个月的暴风雨天气。在选定的时期，泥沙输运的推导梯度的变化是显著的，这取决于沿岸位置和时间变化的强迫条件。到目前为止，数据集的潜力只在有限的程度上得到了探索。未来需要分析的其他参数是海岸线方向和跨海岸剖面梯度。
In this paper it is aimed to quantify bulk (surf-zone integrated) alongshore sediment transport using morphological data collected along the Dutch coast. The collected morphological data covers a domain of 18 km alongshore including the beach, the foreshore and the intertidal zone in the cross shore. The measurement domain contains the 20 million m 3 Sand Engine mega-nourishment. Detailed volume changes in cross shore profiles are calculated using the collected data. Based on the calculated volume changes in the cross shore profiles, gradients in alongshore transport can be derived. In the scope of this paper we have derived alongshore transport gradients considering three periods; 1) a period of one year; 2) a period of two months with mild wave conditions; 3) a period of four months with stormy weather. Changes in the derived gradients in sediment transport for the selected periods are significant depending on alongshore location and temporally varying forcing conditions. The potential of the data-set is only explored to a limited extent so far. Additional parameters to be analyzed in the future are coastline orientation and cross shore profile gradients.