An extreme value model for maximum wave heights based on weather types
2016
Rueda Zamora, Ana Cristina | Camus Braña, Paula | Méndez Incera, Fernando Javier | Tomás Sampedro, Antonio | Luceño Vázquez, Alberto | Universidad de Cantabria
Extreme wave heights are climate-related events. Therefore, special attention should be given to the large-scale weather patterns responsible for wave generation in order to properly understand wave climate variability. We propose a classification of weather patterns to statistically downscale daily significant wave height maxima to a local area of interest. The time-dependent statistical model obtained here is based on the convolution of the stationary extreme value model associated to each weather type. The interdaily dependence is treated by a climate-related extremal index. The model's ability to reproduce different time scales (daily, seasonal, and interannual) is presented by means of its application to three locations in the North Atlantic: Mayo (Ireland), La Palma Island, and Coruña (Spain).
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