Extreme value analysis of decadal variations in storm surge elevations

Butler, A.; Heffernan, J. E.; Tawn, J. A.; Flather, .R. A.; Horsburgh, K. J.. 2007 Extreme value analysis of decadal variations in storm surge elevations. Journal of Marine Systems, 67 (1-2). 189-200. https://doi.org/10.1016/j.jmarsys.2006.10.006

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Abstract/Summary

We use a novel statistical approach to analyse changes in the occurrence and severity of storm surge events in the southern and central North Sea over the period 1955-2000, using 1) output from a numerical storm surge model and 2) in situ data on surge levels at sites for which sufficiently long observational records are available. The methodology provides a robust diagnostic tool for assessing the ability of models to reproduce the observed characteristics of storm surges, in a fashion that properly accounts both for variability within a single long run of the model and for recording error in observational data on sea levels. The model re-analysis data show strong positive trends in the frequency and severity of storm surge events at locations in the north-eastern North Sea, whilst trends at locations in the southern and western North Sea appear to be dominated by decadal variability. Trends in in situ data for sites along the North Sea coast are fairly synchronous with corresponding trends in the model re-analysis data, with the most serious discrepancies attributable to known problems in the observational record

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1016/j.jmarsys.2006.10.006
Programmes:	Oceans 2025 > Shelf and coastal processes
ISSN:	0924-7963
Additional Information. Not used in RCUK Gateway to Research.:	Butler A (reprint author), Biomath & Stat Scotland, Kings Bldg, Edinburgh EH9 3JZ, Midlothian Scotland Univ Lancaster, Lancaster LA1 4YF, England
Additional Keywords:	THEME 3 AJWOCT07 HIJ ISI REF NISCOCT07 OPM2007 AR0708 LLH3501 PROG2 OCEANS 2025 JOURNAL UKPRIVATESECTOR UKUNIVCOAUTHOR STORM SURGES EXTREME VALUES STATISTICAL MODELLING TIDE-SURGE INTERACTION SEA LEVEL CHANGES CLIMATIC CHANGES EUROPEAN CONTINENTAL SHELF NORTH SEA LIKELIHOOD ESTIMATION SAMPLE EXTREMES NORTH ATLANTIC SEA LEVELS VARIABILITY STATISTICS INFERENCE EUROPE TRENDS
NORA Subject Terms:	Marine Sciences
Date made live:	08 Oct 2008 12:25 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/2704

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