Extreme wave value analysis under uncertainty of climate change scenarios off Iberian Peninsula coast

Extreme wave value analysis under uncertainty scenarios was developed to estimate climate characteristics at 17 stations in southwestern European coast off the Iberian Peninsula. A comprehensive dataset downscaled with Wave Watch III (WWIII) model by Meteogalicia MarRisk Project used considering results of models from Coupled Model Intercomparison 5 (CMIP5). Descriptive statistics for significant height (Hs), peak period (Tp), and mean direction were performed historical data (1960–2005), projected two twenty-year time periods Representative Concentration Pathway (RCP) (2026–2045 2081–2100). Hs Tp extreme values study area obtained using Gumbel, Fréchet Weibull probability distributions 10-, 50-, 100-year return period. Obtained showed that: decrease North South are higher than those calculated any RCP future scenarios; appear be constant all stations; means have frequency occurrence Q4 (270°–360°). Moreover, computed, which can as design criteria structural analyses maritime works.