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Erschienen in: Water Resources Management 9/2017

06.04.2017

Modelling Resilience of a Water Supply System under Climate Change and Population Growth Impacts

verfasst von: Pradeep Amarasinghe, An Liu, Prasanna Egodawatta, Paul Barnes, James McGree, Ashantha Goonetilleke

Erschienen in: Water Resources Management | Ausgabe 9/2017

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Abstract

Climate change impacts and increased demand due to population growth are among the most common disruptions or pressures that can undermine the service potential of a water supply system. Consequently, the successful management of a water supply system depends on an in-depth understanding of the resilience of the system to such pressures. This study developed a robust modelling approach to assess the resilience of a water supply system enabling the identification of critical trigger points at which the system would fail. The trigger points identified included maximum rainfall reduction percentage to maintain system functionality under increased demand and minimum initial storage beyond which the probability of failure increases rapidly. Additionally, a logistic regression model was developed for taking into consideration the cumulative effects of rainfall, demand and storage variations in order to predict the probability of failure of a water supply system. The study outcomes are expected to provide improved guidance to infrastructure system operators for enhancing the efficiency and reliability of water supply systems under threats posed by climate change and population growth impacts.

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Metadaten
Titel
Modelling Resilience of a Water Supply System under Climate Change and Population Growth Impacts
verfasst von
Pradeep Amarasinghe
An Liu
Prasanna Egodawatta
Paul Barnes
James McGree
Ashantha Goonetilleke
Publikationsdatum
06.04.2017
Verlag
Springer Netherlands
Erschienen in
Water Resources Management / Ausgabe 9/2017
Print ISSN: 0920-4741
Elektronische ISSN: 1573-1650
DOI
https://doi.org/10.1007/s11269-017-1646-1

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