Assessment of extreme waves in the North Atlantic Ocean by regional frequency analysis. (July 2020)

• Record Type: Journal Article
• Authors: Lucas, C.; Muraleedharan, G.; Guedes Soares, C.
• Is Part Of: Applied ocean research. Volume 100(2020)
• Publication Date: 2020-07
• Subjects: Regional frequency analysis (RFA) -- Extreme significant wave height -- Cluster analysis -- Region -- L-moments; Ocean engineering -- Periodicals; 620.416205
• DOI: 10.1016/j.apor.2020.102165
• Languages: English
• ISSNs: 0141-1187

Abstract

Abstract: Regional frequency analysis is applied to North Atlantic Ocean wave data to determine the regions that can be considered homogenous from the point of view of extreme distributions and to obtain the extreme regional frequency distributions able to characterize those regions. The entire information is used on a regional scale to obtain an accurate estimation of the probability of occurrence of extreme events at a given location. Regional frequency analysis is implemented using 43 years (1958-2000) of hindcast data extracted from the HIPOCAS database. The domain of this area covers the latitudes 20.0 ∘ N to 68.0 ∘ N and the longitudes -50.0 ∘ W to - 4.0 ∘ W, with a grid resolution of 1 ∘ x 1 ∘ . This approach can identify sites that lie close to each other but belong to different regions and in this way defines the areas in which the North Atlantic Ocean can be divided from a statistical point of view.