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首页> 外文期刊>Marine Geology >Equilibrium erosion of soft rock shores with a shallow or absent beach under increased sea level rise
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Equilibrium erosion of soft rock shores with a shallow or absent beach under increased sea level rise

机译：在海平面上升下，浅滩或无滩的软岩海岸的平衡侵蚀

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摘要

A process-based numerical model was used to explore the response of soft rock shores with low volume beaches to variable rates of sea level rise. Equilibrium recession rates were simulated for ranges of wave height and period, tidal amplitude, rock strength, beach volume and rate of sea level rise. Equilibrium shore profiles were found to be steeper with higher rates of sea level rise. Beaches were represented as protective surfaces yet were found to cause no significant reduction in equilibrium recession rate when their volumes were below a critical threshold. Reduced equilibrium recession rates were found with beaches that extended sufficiently far below low tide level. The model results imply that, given several constraints, a very simple relationship exists between increased rates of sea level rise and the response of eroding composite soft rock/low volume beach shores.
机译：使用基于过程的数值模型来探索具有小体积海滩的软岩海岸对可变海平面上升速率的响应。针对波浪高度和周期范围，潮汐幅度，岩石强度，海滩体积和海平面上升速率模拟了平衡衰退率。人们发现，随着海平面上升速度的加快，平衡的海岸轮廓更加陡峭。泳滩被表示为防护面，但当泳滩的体积低于临界阈值时，泳滩的平衡衰退率却没有显着降低。当海滩延伸到远低于低潮位时，发现平衡衰退率降低。该模型的结果表明，在几个约束条件下，海平面上升率的增加与复合软岩/低体积海滩岸侵蚀的响应之间存在非常简单的关系。

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