Convergence of Extreme Value Statistics in a Two-Layer Quasi-Geostrophic Atmospheric Model

Figure 4

Return levels for K. (a) Return levels versus return periods based on GEV parameters using a block size of 128 years and (b) based on GP parameters using an exceedance ratio of %. (Dotted lines: estimated return levels; continuous lines: 95% maximum likelihood confidence interval limits of the return level estimates; dot markers: empirical return levels.) GEV Return levels for (c) -year, (d) -year, and (e) -year return periods as functions of the block size. The error bars show the 95% confidence intervals of the MLE. The circle markers indicate estimates for which the value of the KS-test is above 0.05. The colours mark different latitudes according to the legend.

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