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Publications
Petrov, V. and Guedes Soares, C. (2012), “The effect of wave directionality on extreme significant wave height predictions”, 20th Symposium on Theory and Practice of Shipbuilding (SORTA 2012), 27-29 September, Zagreb, Croatia
The extreme wave conditions in the open sea are a key criteria for the design of ships and offshore platforms. Design is typically based on high return period values for omnidirectional significant wave heights. However, some situations require directional values of extreme waves but suitable approaches to deal with directional models that would preserve the consistency of the directional extremes with the omni-directional ones are still not widely available. In this paper, time series of hindcast significant wave heights from the northern Atlantic Ocean have been studied using the peaks over threshold (POT) approach for eight directional sectors (with _?=45º) and fitted to generalized Pareto distribution (GPD). The distributional properties of the 100-year significant wave heights are estimated and the implications for design discussed.
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