气候变化对沿海洪水影响分析方法:在阿斯图里亚斯的应用

IF 0.2 Q4 WATER RESOURCES
A. Toimil, I.J. Losada, P. Camus
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引用次数: 1

摘要

世界各地沿海系统和低洼地区面临的主要威胁之一是,由于气候变化(主要是海平面上升)的影响,洪水日益增多。本文提出了一种用于分析沿海洪水影响的区域尺度- 0(100公里)方法。该程序结合了高分辨率历史数据库和海洋动力学预测。通过深度改进的高分辨率数字地形模型,包括海岸防御,可以很好地表示暴露情况。通过现场数据校准波浪破碎引起的上升的经验参数化,并进一步改进以评估港口的洪水。这样的上升提供了一个有效的二维水动力模型,可以描述内陆的淹没情况。采用结合海平面上升和极端事件的区域预测的情景,提出的方法已应用于阿斯图里亚斯海岸(西班牙北部)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Metodología para el análisis del efecto del cambio climático en la inundación costera: aplicación a Asturias

One of the main threats to coastal systems and low-lying areas around the world is increasing flooding due to the effects of climate change, mainly due to sea-level rise. A regional-scale —O (100 km)— methodology to analyze the impact of coastal flooding is herein presented. The procedure combines high-resolution historical databases and projections of marine dynamics. Exposure is well represented over a high-resolution digital terrain model deeply improved including coastal defences. An empirical parameterization of the run-up that results from wave breaking is calibrated with field data, and further improved to evaluate flooding in ports. Such run-up feeds an efficient two-dimensional hydrodynamic model that allows the characterization of the inundation inland. Using scenarios that combine regional projections of sea-level rise with extreme events, the proposed methodology has been applied to the coast of Asturias (North of Spain).

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