Flood risk mapping at European scale
Flood risk mapping at European scale
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DOI：
10.2166/wst.2007.531
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发表时间：
2007-01-01
影响因子：
2.7
通讯作者：
Lavalle, C.
中科院分区：
文献类型：
--
作者：
Barredo, J. I.;de Roo, A.;Lavalle, C.
本文的目的是阐述由 EC-JRC-IES 的天气驱动自然灾害 (WDNH) 行动生成的泛欧洲范围洪水风险测绘框架。早期结果以洪水风险指数图的形式呈现。我们评估了导致洪水灾害发生的几个洪水风险因素。洪水灾害的成因之一是引发极端降水形式的自然事件，从而导致极端的河流流量和极端的洪水水位。具有威胁性的自然事件代表了我们评估中的危险成分。此外，暴露度和脆弱性也是造成洪水风险的人为因素。在提议的方法中，根据暴露度、脆弱性和危害来考虑洪水风险：我们使用具有明显地域方法的方法来评估洪水风险。因此，根据数学计算，风险是危害、暴露和脆弱性的乘积。预计本研究的下一阶段将改进数据集可用性和空间规模。这项研究也是对自然灾害科学界与该领域政治和决策参与者之间沟通工具需求的讨论的贡献。
The aim of this article is to illustrate a framework for flood risk mapping at pan-European scale produced by the Weather-Driven Natural Hazards (WDNH) action of the EC-JRC-IES. Early results are presented in the form of flood risk index maps. We assess several flood risk factors that contribute to the occurrence of flood disasters. Among the causal factors of a flood disaster one is triggering a natural event in the form of extreme precipitation and consequently extreme river discharge and extreme flood water levels. The threatening natural event represents the hazard component in our assessment. Furthermore exposure and vulnerability are anthropogenic factors that contribute also to flood risk. In the proposed approach, flood risk is considered on the light of exposure, vulnerability and hazard: We use a methodology with a marked territorial approach for the assessment of the flood risk. Hence, based on mathematical calculations, risk is the product of hazard, exposure and vulnerability. Improvements on datasets availability and spatial scale are foreseen in the next phases of this study. This study is also a contribution to the discussion about the need for communication tools between the natural hazard scientific community and the political and decision making players in this field.