Wave runup and wave overtopping measurements using a laser scanner
Wave runup and wave overtopping measurements using a laser scanner
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DOI：
10.1016/j.coastaleng.2015.09.003
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发表时间：
2015-12-01
影响因子：
4.4
通讯作者：
Meys, Paul
中科院分区：
文献类型：
--
作者：
Hofland, Bas;Diamantidou, Eleni;Meys, Paul
对使用标准激光扫描仪测量海岸建筑物的几种水力响应进行了研究。为此，描述和分析了在(老)三角洲水槽中的堤坡上的足尺波浪爬高的测量结果。用激光扫描仪测量的波浪爬升高度与基于目测的测量结果进行了比较。此外，还利用激光反射的信号强度来确定波的爬升高度。通过考虑堤坡上某一虚顶水位以上的最大水量，确定了每个爬升事件的有效越浪体积和平均越浪流量。用这种方法确定的平均越浪流量与公认的越浪公式非常接近。描述了该技术的技术适用性，包括后处理方法，并对可以达到的精度进行了估计。(C)2015爱思唯尔B.V.保留所有权利。
The use of a standard laser scanner to measure several hydraulic responses of coastal structures is examined. To this end measurements of full scale wave runup on a dike slope in the (old) Delta Flume are described and analyzed. Measurements of the wave runup height with a laser scanner are compared to measurements based on visual observation. The signal intensity of the laser reflection is additionally used in the determination of the wave runup height. Virtual wave overtopping volumes and mean overtopping discharge are determined by considering the maximum water volume above a certain virtual crest level on the dike slope, for each runup event. The mean wave overtopping discharge that is determined in this manner compares well to accepted formulas for overtopping. The technological applicability of the technique is described, including postprocessing methods, and estimates are made of the accuracy that can be achieved. (C) 2015 Elsevier B.V. All rights reserved.