Quantitative assessment of resilience of a water supply system under rainfall reduction due to climate change

被引:31
作者
Amarasinghe, Pradeep [1 ]
Liu, An [2 ]
Egodawatta, Prasanna [1 ]
Barnes, Paul [3 ]
McGree, James [1 ]
Goonetilleke, Ashantha [1 ]
机构
[1] Queensland Univ Technol, Fac Sci & Engn, POB 2434, Brisbane, Qld 4001, Australia
[2] Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518060, Peoples R China
[3] Queensland Univ Technol, Hlth Fac, POB 2434, Brisbane, Qld 4001, Australia
关键词
Water supply; Climate change; Resilience indicators; Water security; Resilience modelling approach; MEAN ANNUAL RUNOFF; VULNERABILITY; RELIABILITY; SCENARIOS; RESERVOIR;
D O I
10.1016/j.jhydrol.2016.07.021
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
A water supply system can be impacted by rainfall reduction due to climate change, thereby reducing its supply potential. This highlights the need to understand the system resilience, which refers to the ability to maintain service under various pressures (or disruptions). Currently, the concept of resilience has not yet been widely applied in managing water supply systems. This paper proposed three technical resilience indictors to assess the resilience of a water supply system. A case study analysis was undertaken of the Water Grid system of Queensland State, Australia, to showcase how the proposed indicators can be applied to assess resilience. The research outcomes confirmed that the use of resilience indicators is capable of identifying critical conditions in relation to the water supply system operation, such as the maximum allowable rainfall reduction for the system to maintain its operation without failure. Additionally, resilience indicators also provided useful insight regarding the sensitivity of the water supply system to a changing rainfall pattern in the context of climate change, which represents the system's stability when experiencing pressure. The study outcomes will help in the quantitative assessment of resilience and provide improved guidance to system operators to enhance the efficiency and reliability of a water supply system. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:1043 / 1052
页数:10
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