For these stations, the upstream reservoirs were built after the period of the observations used for calibration. The model was therefore calibrated with reservoirs off, so that it matches the natural flow regime in the observations. The reanalysis, which is used to derive the return-period thresholds, runs with all reservoirs on so that it reflects present-day, regulated conditions.
The scores compare both simulations with the observations over the calibration period. Here, differences are expected and do not necessarily mean that the reanalysis is wrong, because the observations come from the pre-reservoir regime. Marker colour shows ΔKGE = KGE(Reanalysis) − KGE(Calibration). Click a station to see its scores table and its time series for the most recent 30 years of the calibration period.