Fig. 2: Catchment-specific return interval thresholds above which precipitation increases result in discharge increases.
From: An extremeness threshold determines the regional response of floods to changes in rainfall extremes

Relative changes (1 corresponds to 100% increase) in (a) event frequency and (b) peak magnitude for mean and progressively more extreme events (those with 10, 20, 50, 100, and 200 year empirical return intervals, respectively) for each of the 78 catchments (1 line = 1 catchment). Dashed lines denote catchments without a distinct threshold. Relative changes are computed by comparing event characteristics of a future period (2060–2099) to characteristics of a historical period (1961–2000). The approximate location of the return interval threshold is indicated using different line colors with darker colors representing higher return interval thresholds.