A flood vulnerability index for coastal cities and its use in assessing climate change impacts
A flood vulnerability index for coastal cities and its use in assessing climate change impacts
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DOI：
10.1007/s11069-012-0234-1
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发表时间：
2012-10-01
期刊：
影响因子：
3.7
通讯作者：
van der Meulen, F.
中科院分区：
文献类型：
--
作者：
Balica, S. F.;Wright, N. G.;van der Meulen, F.
在世界范围内，需要加强我们对脆弱性的理解，并制定评估脆弱性的方法和工具。评估沿海洪水脆弱性的最重要的目标之一，特别是，是建立一个容易理解的洪水脆弱性的理论概念和日常决策过程之间的联系，并封装在一个易于访问的工具，这种联系。本文着重于开发一个沿海城市洪水脆弱性指数（CCFVI）的基础上暴露，敏感性和沿海洪水的恢复力。它被应用于世界各地的九个城市，每个城市都有不同的曝光类型。借助这一指数，它表明，哪些城市是最容易受到沿海洪水系统的组成部分，即水文地质，社会经济和政治行政。该指数给出了一个从0到1的数字，表示相对较低或较高的沿海洪水脆弱性，这表明哪些城市最需要决策者进行进一步，更详细的调查。一旦它被证明可用于比较一系列城市在当前条件下的脆弱性，它就可用于研究气候变化在较长时间尺度上对这些城市脆弱性的影响。结果表明，CCFVI提供了一种手段，获得洪水脆弱性和可能的适应方案的影响的广泛概述。这反过来又能将资源用于更深入地调查最有希望的战略。
Worldwide, there is a need to enhance our understanding of vulnerability and to develop methodologies and tools to assess vulnerability. One of the most important goals of assessing coastal flood vulnerability, in particular, is to create a readily understandable link between the theoretical concepts of flood vulnerability and the day-to-day decision-making process and to encapsulate this link in an easily accessible tool. This article focuses on developing a Coastal City Flood Vulnerability Index (CCFVI) based on exposure, susceptibility and resilience to coastal flooding. It is applied to nine cities around the world, each with different kinds of exposure. With the aid of this index, it is demonstrated which cities are most vulnerable to coastal flooding with regard to the system's components, that is, hydro-geological, socio-economic and politico-administrative. The index gives a number from 0 to 1, indicating comparatively low or high coastal flood vulnerability, which shows which cities are most in need of further, more detailed investigation for decision-makers. Once its use to compare the vulnerability of a range of cities under current conditions has been demonstrated, it is used to study the impact of climate change on the vulnerability of these cities over a longer timescale. The results show that CCFVI provides a means of obtaining a broad overview of flood vulnerability and the effect of possible adaptation options. This, in turn, will allow for the direction of resources to more in-depth investigation of the most promising strategies.