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首页> 外文期刊>Ocean Engineering >Three simple indicators of vulnerability to climate change on a Mediterranean beach: A modeling approach
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Three simple indicators of vulnerability to climate change on a Mediterranean beach: A modeling approach

机译：地中海海滩上易受气候变化影响的三个简单指标：一种建模方法

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This study assesses three different approaches for evaluating coastal vulnerability using indicators. We began by establishing a procedure for binding three codes to simulate realistic or idealized climates. The procedure was validated in terms of hydrodynamics and beach morpho-dynamics. We then defined and studied the vulnerability of the coast on the basis of in situ observations and model results taken from a set of simulations based on different scenarios. We present three simple indicator methods developed to analyze the vulnerability of a sandy beach based on the results of simulations for different wave climate scenarios. The first method is based on the wave energy, and specifically how it differs as a function of climate change scenario. The second method consists of estimating the maximum grain size mobilized. Note that the calculation of stress at the sea bottom is routinely estimated solely on the basis of simulated velocity post-wave. Here, we calculate the maximum grain size potentially mobilized with a simpler approach, based on analysis in different points along the cross-shore profile. The third method presented is the analysis of the time-course evolution of cross-shore sea bed profiles in response to different climate change scenarios.
机译：这项研究评估了使用指标评估沿海脆弱性的三种不同方法。我们从建立绑定三个代码以模拟现实或理想气候的程序开始。该程序在流体动力学和海滩形态动力学方面得到了验证。然后，我们根据现场观察结果和对模型的结果进行了定义，并研究了海岸的脆弱性，这些结果是根据不同情况下的一组模拟得出的。基于不同波浪气候情景的模拟结果，我们提出了三种简单的指标方法，用于分析沙滩的脆弱性。第一种方法基于波能，尤其是其根据气候变化情景的差异。第二种方法包括估算动员的最大晶粒尺寸。请注意，通常仅根据模拟波后速度来估算海底应力的计算。在此，我们基于对跨岸剖面不同点的分析，计算了可能以更简单的方法动员的最大晶粒尺寸。提出的第三种方法是分析不同气候变化情景下跨海海床剖面的时程演变。

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