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. We analyzed the spatial pattern of wave extremes in the South Atlantic Oceanby using multiple altimeter platforms spanning the period 1993–2015. Unlikethe traditional approach adopted by previous studies, consisting of computingthe monthly mean, median or maximum values inside a bin of certain size, wetackled the problem with a different procedure in order to capture moreinformation from short-term events. All satellite tracks occurring duringa 2-day temporal window were gathered in the whole area and then gridded datawere generated onto a mesh size of 2 ∘ × 2 ∘ throughoptimal interpolation. The peaks over threshold (POT) method was applied,along with the generalized Pareto distribution (GPD). The results showed aspatial distribution comparable to previous studies and, additionally,this method allowed for capturing more information on shorter timescales withoutcompromising spatial coverage. A comparison with buoy observationsdemonstrated that this approach improves the representativeness of short-termevents in an extreme events analysis.

Estimation of extreme wave height return periods from short-term interpolation of multi-mission satellite data: application to the South Atlantic