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Bridging the Water Supply–demand Gap in Australia: Coupling Water Demand Efficiency with Rain-independent Desalination Supply

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  • Oz Sahin

  • Rodney Stewart

  • Fernanda Helfer

Abstract

Water supply in Australia mainly relies on precipitation and, therefore, is highly dependent on climate variability and change. Coupled with reduced rainfall reliability, population and economic growth and increasing competition for water resources augment the concern over the existing water resources and put a strain on future water security. In fact, the upward trend of water demand has already been escalating the pressure on water resources. Clearly, the anticipation of decline in water supply requires the identification of more reliable, rainfall-independent supply alternatives. With this in mind, this paper discusses the role and value of desalination in water grids. For this purpose, we present a modelling framework using System Dynamics approach to incorporate a range of factors into a simulation of future water demand and supply in Queensland, Australia; and examine desalination schemes as long-term water security option in the portfolio of supply sources. In particular, the model is used to explore the sensitivity of long term planning of water resources with respect to two specific assumptions, the discount rate and the degree of water security. The proposed approach would help decision makers to develop sustainable water supply and efficient infrastructure strategies, and thus respond to water scarcity in a timely manner. Copyright Springer Science+Business Media Dordrecht 2015

Suggested Citation

  • Oz Sahin & Rodney Stewart & Fernanda Helfer, 2015. "Bridging the Water Supply–demand Gap in Australia: Coupling Water Demand Efficiency with Rain-independent Desalination Supply," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 29(2), pages 253-272, January.
    • Handle: RePEc:spr:waterr:v:29:y:2015:i:2:p:253-272
    DOI: 10.1007/s11269-014-0794-9
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    References listed on IDEAS

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    1. Julian Andres Castrillon-Gomez & Gerard Olivar-Tost & Johnny Valencia-Calvo, 2022. "Systems Dynamics and the Analytical Network Process for the Evaluation and Prioritization of Green Projects: Proposal That Involves Participative Integration," Sustainability, MDPI, vol. 14(18), pages 1-26, September.
    2. Pradeep Amarasinghe & An Liu & Prasanna Egodawatta & Paul Barnes & James McGree & Ashantha Goonetilleke, 2017. "Modelling Resilience of a Water Supply System under Climate Change and Population Growth Impacts," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 31(9), pages 2885-2898, July.
    3. Yi Xiao & Keith W. Hipel & Liping Fang, 2016. "Incorporating Water Demand Management into a Cooperative Water Allocation Framework," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 30(9), pages 2997-3012, July.
    4. Juexin Shi & Yuan Liu & Qin Wang & Xiaojian Hu & Bixiong Ye & Shaoxia Dong, 2022. "The Risk of CVDs from Desalinated Seawater: A Nested Case-Control Study," IJERPH, MDPI, vol. 19(12), pages 1-11, June.

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