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Extreme wave heights in the North Atlantic from altimeter data

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).

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


Local EPrints ID: 24148
ISSN: 0960-1481
PURE UUID: fe3f23fb-d6e4-476b-9d22-c34c4dd6fa4c
ORCID for Werenfrid Wimmer: ORCID iD

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

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