Choice of reliability, resilience and vulnerability estimators for risk assessments of water resources systems
Thomas Kjeldsen,Dan Rosbjerg +1 more
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A behaviour analysis addressing monotonic behaviour, overlap and correlation between the estimators of water resources system reliability, resilience and vulnerability was carried out by routing time series of monthly runoff through a reservoir with a specified storage volume.Abstract:
Definitions and estimators of water resources system reliability (the probability that the system will remain in a non-failure state), resilience (the ability of the system to return to non-failure state after a failure has occurred) and vulnerability (the likely damage of a failure event) have been thoroughly investigated. A behaviour analysis addressing monotonic behaviour, overlap and correlation between the estimators was carried out by routing time series of monthly runoff through a reservoir with a specified storage volume that is operated according to a fixed operation policy. Estimation based on historical time series is shown to be problematic and a procedure encompassing generation of synthetic time series with a length of at least 1000 years is recommended in order to stabilize the estimates. Moreover, the strong correlation between resilience and vulnerability may suggest that resilience should not be explicitly accounted for.read more
Citations
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References
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Reliability, resiliency, and vulnerability criteria for water resource system performance evaluation
TL;DR: In this paper, three criteria for evaluating the performance of water resource systems are discussed, i.e., reliability, resilience, and vulnerability, which describe how likely a system is to fail, how quickly it recovers from failure, and how severe the consequences of failure may be.
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Quantifying trends in system sustainability
TL;DR: In this paper, the authors focus on the measurement of the relative sustainability of renewable water resource systems, and propose a metric to measure the changes in relative system sustainability over time based on reliability, resilience, and vulnerability.
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A Programming Model for Analysis of the Reliability, Resilience, and Vulnerability of a Water Supply Reservoir
TL;DR: In this article, the tradeoffs between reliability, vulnerability, and resilience were examined using multiobjective mixed-integer, linear programming, and it was found that as reliability is increased or as the maximum length of consecutive shortfalls decreases (resilience increases), the vulnerability of the water system to larger deficits increases.
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Storage‐Reliability‐Resilience‐Yield Relations for Over‐Year Water Supply Systems
TL;DR: In this article, an approximate yet general approach for describing the overall behavior of water supply systems dominated by carry-over storage is introduced, and relationships for reservoir system resilience are derived which represent the likelihood that a system will recover from a failure once a failure has occurred.
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Alternative indices of resilience
TL;DR: In this paper, the concept of resilience of a water resource system is explored, and a few definitions are suggested and compared These are based on the time required to pass from one system state to another and involve the passage to or from a state defined as failure.