Water Resources Management

, Volume 31, Issue 9, pp 2885–2898 | Cite as

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

  • Pradeep Amarasinghe
  • An LiuEmail author
  • Prasanna Egodawatta
  • Paul Barnes
  • James McGree
  • Ashantha Goonetilleke


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.


Water supply system Resilience Climate change Population growth 

Supplementary material

11269_2017_1646_MOESM1_ESM.docx (509 kb)
ESM 1 (DOCX 508 kb)


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Copyright information

© Springer Science+Business Media Dordrecht 2017

Authors and Affiliations

  • Pradeep Amarasinghe
    • 1
  • An Liu
    • 1
    • 2
    Email author
  • Prasanna Egodawatta
    • 1
  • Paul Barnes
    • 3
  • James McGree
    • 1
  • Ashantha Goonetilleke
    • 1
  1. 1.Science and Engineering FacultyQueensland University of Technology (QUT)BrisbaneAustralia
  2. 2.College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenPeople’s Republic of China
  3. 3.Health FacultyQueensland University of Technology (QUT)BrisbaneAustralia

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