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Extreme wave heights in the North Atlantic from altimeter data

Record type: Article

Extreme waves are an important ocean feature. We estimate return values of significant wave height from measurements by satellite altimeters over the North Atlantic. The data were divided into 2° latitude by 2° longitude grid squares and the median along the satellite track was taken in each. Return values were estimated by fitting a Generalised Pareto Distribution to all values above a threshold, which was allowed to vary spatially. This method is objective, more statistically robust and thus theoretically preferable to fitting a distribution to all the data. The novel method gave return values that were up to 37% smaller than those estimated by fitting a Fisher-Tippet 1 distribution to all the data.

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Citation

Wimmer, Werenfrid, Challenor, Peter and Retzler, Chris (2006) Extreme wave heights in the North Atlantic from altimeter data Renewable Energy, 31, (2), pp. 241-248. (doi:10.1016/j.renene.2005.08.019).

More information

Published date: February 2006
Keywords: extreme wave heights, generalised pareto distribution

Identifiers

Local EPrints ID: 24148
URI: http://eprints.soton.ac.uk/id/eprint/24148
ISSN: 0960-1481
PURE UUID: fe3f23fb-d6e4-476b-9d22-c34c4dd6fa4c
ORCID for Werenfrid Wimmer: ORCID iD orcid.org/0000-0003-4693-1161

Catalogue record

Date deposited: 23 Mar 2006
Last modified: 17 Jul 2017 16:14

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