Linking drought characteristics to impacts on a spatial and temporal scale
Linking drought characteristics to impacts on a spatial and temporal scale
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将干旱特征与空间和时间尺度的影响联系起来
DOI：
10.2166/wp.2014.205
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发表时间：
2014
期刊：
影响因子：
1.6
通讯作者：
E. Vlachos
中科院分区：
文献类型：
--
作者：
C. Karavitis;D. Tsesmelis;N. A. Skondras;D. Stamatakos;S. Alexandris;V. Fassouli;C. G. Vasilakou;P. Oikonomou;G. Gregorič;N. Grigg;E. Vlachos
干旱是一种复杂的自然现象，缺乏普遍接受的定义，因此很难整体应对。为了控制广泛的灾难性干旱影响，已经做出了一些努力。在这一探索中，干旱脆弱性的概念似乎提供了一些巨大的潜力。在目前的尝试中，通过国家尺度的地统计方法提出、应用和空间可视化标准化干旱脆弱性指数（SDVI）。希腊因频繁发生严重干旱而被选为研究地点。为了将干旱特征与影响联系起来，该指数纳入了供水信息、需求数据、相关水基础设施的状况以及标准化降水指数代表的气候参数。该指数显示了描绘各种脆弱性状态的潜力，并令人满意地跟踪了希腊与记录的干旱灾害规模和影响相关的脆弱性波动。 SDVI 可被视为在环境研究和决策中具有多标量应用的集成 SDVI 的出现的第一步。人们相信，改进指数制定技术可以补充更合理和可接受的解决方案，以应对干旱带来的水挑战，并有助于避免持续“水危机”的飘忽不定的感觉。
Drought is a complex natural phenomenon that lacks a universally accepted definition, thus it is difficult to confront holistically. Several efforts have been made towards managing the widespread and catastrophic drought impacts. In this quest, the concept of vulnerability to drought seems to offer some significant potential. In the present attempt, a standardized drought vulnerability index (SDVI) is presented, applied, and spatially visualized through geostatistical methods on a country scale. Greece, experiencing frequent and intense droughts, was selected as the study site. In an effort to link drought characteristics to impacts, the index incorporates water supply information, demand data, the state of the relevant water infrastructure and climatic parameters represented by the standardized precipitation index. The index showed potential in portraying various vulnerability states and followed satisfactorily the vulnerability fluctuations in Greece in relation to recorded drought hazard dimensions and impacts. The SDVI may be considered as a first step for the emergence of an integrated SDVI with multi-scalar applications in environmental research and decision-making. It is believed that improving techniques in index formulation may complement more reasonable and acceptable solutions to water challenges posed by droughts and help avoid a drifting sense of continuous ‘water crises’.