Type

Journal Article

Authors

Andrew C. Parnell
Fr?d?ric Dias
Conor Sweeney
John O'Sullivan
Colm Clancy

Subjects

Mathematics

Topics
ocean waves significant wave heights maximum likelihood spatial model extreme value analysis bayesian hierarchical modelling sea significant wave height ireland spatial modelling bayesian modelling bayesian framework spatial variation hierarchical modelling

Spatial Bayesian hierarchical modelling of extreme sea states (2016)

Abstract A Bayesian hierarchical framework is used to model extreme sea states, incorporating a latent spatial process to more e ffectively capture the spatial variation of the extremes. The model is applied to a 34-year hindcast of significant wave height off the west coast of Ireland. The generalised Pareto distribution is fitted to declustered peaks over a threshold given by the 99.8th percentile of the data. Return levels of significant wave height are computed and compared against those from a model based on the commonly-used maximum likelihood inference method. The Bayesian spatial model produces smoother maps of return levels. Furthermore, this approach greatly reduces the uncertainty in the estimates, thus providing information on extremes which is more useful for practical applications.
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Ireland -> University College Dublin -> Insight Research Collection
Ireland -> Maynooth University -> Status = Published
Ireland -> University College Dublin -> Earth Institute Research Collection
Ireland -> Maynooth University -> Open Access DRIVERset
Ireland -> University College Dublin -> College of Science
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering: Research Institutes
Ireland -> Trinity College Dublin -> edepositIreland
Ireland -> Maynooth University -> Type = Article
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering: Research Institutes: Hamilton Institute
Ireland -> Trinity College Dublin -> Met √Čireann
Ireland -> University College Dublin -> UCD Earth Institute
Ireland -> University College Dublin -> Mathematics and Statistics Research Collection
Ireland -> University College Dublin -> School of Mathematics and Statistics
Ireland -> University College Dublin -> Institutes and Centres
Ireland -> University College Dublin -> Insight Centre for Data Analytics

Full list of authors on original publication

Andrew C. Parnell, Fr?d?ric Dias, Conor Sweeney, John O'Sullivan, Colm Clancy

Experts in our system

1
Andrew Parnell
Maynooth University
Total Publications: 45
 
2
Fr?d?ric Dias
Trinity College Dublin
Total Publications: 19
 
3
Conor Sweeney
Trinity College Dublin
Total Publications: 6
 
4
John O'Sullivan
University College Dublin
Total Publications: 46
 
5
Colm Clancy
Trinity College Dublin
Total Publications: 12