Structured elicitation of expert judgment for probabilistic hazard and risk assessment in volcanic eruptions

@inproceedings{Aspinall2006StructuredEO,
  title={Structured elicitation of expert judgment for probabilistic hazard and risk assessment in volcanic eruptions},
  author={Willy P. Aspinall},
  year={2006}
}
When a potentially dangerous volcano becomes restless, civil authorities invariably turn to scientific specialists to help them anticipate what the volcano will do next, and to provide them with guidance as to the likely threats. Although it is usually possible to discern the earliest signs of unrest, the science of forecasting the course and timing of eruptions remains inexact. In this chapter, recent volcanic crises in the Eastern Caribbean are recounted in order to trace the emergence of a… 

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References

SHOWING 1-10 OF 27 REFERENCES
Expert judgement elicitation for risk assessments of critical infrastructures
Governmental bodies and companies are confronted with the problem of achieving rational consensus in the face of substantial uncertainties. The subject area of this special issue (risk and
Use of expert opinion elicitation to quantify the internal erosion process in dams
SYNOPSIS. Expert Opinion Elicitation is a generic term for a number of similar techniques that have been developed to provide quantitative estimates of parameters which cannot readily be quantified
Use of Technical Expert Panels: Applications to Probabilistic Seismic Hazard Analysis *
Probabilistic Seismic Hazard Analysis (PSHA) is a methodology that estimates the likelihood that various levels of earthquake‐caused ground motions will be exceeded at a given location in a given
The Montserrat Volcano Observatory: its evolution, organization, role and activities
Abstract The Montserrat Volcano Observatory (MVO) is a statutory body of the Government of Montserrat and is the organization responsible for volcano monitoring operations on the island. It was
Expert opinion in risk analysis: the NUREG-1150 methodology
TLDR
A reasoned approach to the acquisition of expert opinion for use in PRA work and other public policy areas is presented.
Expert Judgement and the Montserrat Volcano Eruption
A structured procedure for eliciting expert judgement has been used for the first time in a volcanic crisis for hazard assessment and ris k management.
Eliciting expert beliefs in substantial practical applications
TLDR
The practical elicitation of expert beliefs is considered through two contrasting examples, and a common principle of trying to identify and elicit separately the various sources of expert uncertainty is identified.
Joint EC/USNRC expert judgement driven radiological protection uncertainty analysis.
  • L. Goossens, F. Harper
  • Business
    Journal of radiological protection : official journal of the Society for Radiological Protection
  • 1998
TLDR
The process and some of the findings of the eight expert judgement exercises performed under the joint study to systematically derive credible and traceable probability distributions for the respective code input variables are described.
Bayes Linear Sufficiency and Systems of Expert Posterior Assessments
Data arising in the form of expert assessments are received by a decision maker. The decision maker is required to estimate a set of unknown quantities, and receives expert assessments at varying
...
...