the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Epistemic uncertainties and natural hazard risk assessment – Part 1: A review of the issues
Abstract. Uncertainties in natural hazard risk assessment are generally dominated by the sources arising from lack of knowledge or understanding of the processes involved. There is a lack of knowledge about frequencies, process representations, parameters, present and future boundary conditions, consequences and impacts, and the meaning of observations in evaluating simulation models. These are the epistemic uncertainties that can be difficult to constrain, especially in terms of event or scenario probabilities, even as elicited probabilities rationalized on the basis of expert judgements. This paper reviews the issues raised by trying to quantify the effects of epistemic uncertainties. Such scientific uncertainties might have significant influence on decisions that are made for risk management, so it is important to communicate the meaning of an uncertainty estimate and to provide an audit trail of the assumptions on which it is based. Some suggestions for good practice in doing so are made.
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Interactive discussion
- RC C2527: 'Epistemic uncertainties and natural hazard risk assessment. 1. A review of the issues', Anonymous Referee #1, 10 Dec 2015
- RC C3275: 'Review report', Anonymous Referee #2, 06 Mar 2016
- EC C3408: 'Editorial comment', Richard Chandler, 24 May 2016
- AC C3437: 'Response to Referees' Comments', Keith Beven, 31 Jul 2016
Interactive discussion
- RC C2527: 'Epistemic uncertainties and natural hazard risk assessment. 1. A review of the issues', Anonymous Referee #1, 10 Dec 2015
- RC C3275: 'Review report', Anonymous Referee #2, 06 Mar 2016
- EC C3408: 'Editorial comment', Richard Chandler, 24 May 2016
- AC C3437: 'Response to Referees' Comments', Keith Beven, 31 Jul 2016
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Cited
10 citations as recorded by crossref.
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- Disaster Risk Analysis Part 2: The Systemic Underestimation of Risk A. Mamuji & D. Etkin 10.1515/jhsem-2017-0006
- Deterministic seismic hazard assessment for the Makkah region, western Saudi Arabia H. Zahran et al. 10.1007/s12517-019-4648-x
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- Optimization-based decision-making models for disaster recovery and reconstruction planning of transportation networks M. Zamanifar & T. Hartmann 10.1007/s11069-020-04192-5
- Sources of uncertainty in a probabilistic flood risk model B. Winter et al. 10.1007/s11069-017-3135-5
- Hazard communication by volcanologists: part 2 - quality standards for volcanic hazard assessments R. Bretton et al. 10.1186/s13617-018-0079-8
- Assessing future vent opening locations at the Somma‐Vesuvio volcanic complex: 2. Probability maps of the caldera for a future Plinian/sub‐Plinian event with uncertainty quantification A. Tadini et al. 10.1002/2016JB013860
- Seismic hazard assessment for Harrat Lunayyir – A lava field in western Saudi Arabia H. Zahran & S. El-Hady 10.1016/j.soildyn.2017.06.009