Wave runup on composite beaches and dynamic cobble berm revetments
Wave runup on composite beaches and dynamic cobble berm revetments
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复合海滩和动态鹅卵石护岸上的波浪涌动
DOI：
10.1016/j.coastaleng.2022.104148
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发表时间：
2022
影响因子：
4.4
通讯作者：
Blenkinsopp C
中科院分区：
文献类型：
--
作者：
Blenkinsopp C
气候变化和海平面上升的影响，加上人口过剩，正在给全世界沿海地区带来日益增加的压力。因此，人们对可持续和适应性强的沿海保护方法越来越感兴趣。动态卵石护堤由靠近高潮海岸线在沙滩海滩上设置的砾石护堤组成，其设计模仿自然形成的复合海滩（消散性桑迪，高潮海岸线周围有砾石护堤）。现有的方法来预测波浪爬高砂或纯砾石海滩复合海滩的技能非常差，这限制了沿海工程师的能力，以评估洪水风险在现有的网站或设计新的保护结构。本文介绍了高分辨率测量波爬高从五个领域和大规模的实验室实验调查复合海滩和动态卵石护堤。这些数据表明，随着冲流区从前缘砂海滩过渡到砾石护堤，显著冲流高度的短波分量迅速增加，并可在重力分量之上占主导地位。结果表明，当高潮位时，波浪爬高受砾石堤趾处水深的控制。这是由于前沿砂海滩的耗散性质导致护堤趾处的有效波高与离岸波浪条件脱钩。这一见解，结合新的方法来预测波的设置和亚重力波消散复合海滩是用来开发第一个复合海滩/动态护岸特定的方法来预测波浪爬高。
The effects of climate change and sea level rise, combined with overpopulation are leading to ever-increasing stress on coastal regions throughout the world. As a result, there is increased interest in sustainable and adaptable methods of coastal protection. Dynamic cobble berm revetments consist of a gravel berm installed close to the high tide shoreline on a sand beach and are designed to mimic naturally occurring composite beaches (dissipative sandy beaches with a gravel berm around the high tide shoreline). Existing approaches to predict wave runup on sand or pure gravel beaches have very poor skill for composite beaches and this restricts the ability of coastal engineers to assess flood risks at existing sites or design new protection structures. This paper presents high-resolution measurements of wave runup from five field and large-scale laboratory experiments investigating composite beaches and dynamic cobble berm revetments. These data demonstrated that as the swash zone transitions from the fronting sand beach to the gravel berm, the short-wave component of significant swash height rapidly increases and can dominate over the infragravity component. When the berm toe is submerged at high tide, it was found that wave runup is strongly controlled by the water depth at the toe of the gravel berm. This is due to the decoupling of the significant wave height at the berm toe from the offshore wave conditions due to the dissipative nature of the fronting sand beach. This insight, combined with new methods to predict wave setup and infragravity wave dissipation on composite beaches is used to develop the first composite beach/dynamic revetment-specific methodologies for predicting wave runup.
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影响因子：
4.4
作者：
Blenkinsopp, C. E.;Mole, M. A.;Peirson, W. L.
通讯作者：
Peirson, W. L.
影响因子：
3.5
作者：
A. D. de Bakker;T. Herbers;P. Smit;M. Tissier;B. Ruessink
通讯作者：
A. D. de Bakker;T. Herbers;P. Smit;M. Tissier;B. Ruessink
影响因子：
4.4
作者：
Almar, Rafael;Blenkinsopp, Chris;Catalan, Patricio A.
通讯作者：
Catalan, Patricio A.
影响因子：
4.4
作者：
Hofland, Bas;Diamantidou, Eleni;Meys, Paul
通讯作者：
Meys, Paul
海岸线的风暴波：次重力波何时何地很重要？
影响因子：
2.9
作者：
Billson O
通讯作者：
Billson O