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).


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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.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.renene.2005.08.019
ISSNs: 0960-1481 (print)
Keywords: extreme wave heights, generalised pareto distribution
ePrint ID: 24148
Date :
Date Event
February 2006Published
Date Deposited: 23 Mar 2006
Last Modified: 16 Apr 2017 22:41
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/24148

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