Abstract
ABSTRACT The paper discusses the development of a composite index for assessing the risks faced by rural communities because of disruptions in water supply caused by natural hazards such as droughts, floods, and landslides. The various parameters considered for developing the three dimensions of the risk index, namely, hazard, exposure, and vulnerability, the rationale for choosing those parameters, and the manner in which these parameters influence them are discussed. The index uses 29 variables: 5 for hazard, 15 for exposure, and the remaining 9 for vulnerability. The variables are natural, physical, socioeconomic, and institutional or policy-related. The quantitative criteria for assigning values for various parameters and the analytical procedure for computing the sub-indices and the final risk index are also discussed. The paper also presents the results of a mapping of climate-induced risk to water supply in 35 districts of the state of Maharashtra in western India, done using district level data on the various parameters concerned, and identifying the district where water supply systems are highly prone to climate-induced risks.
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