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Review of "The potential of global re-analysis datasets in identifying flood events in Southern Africa"

This study aims at evaluating the performances of several hydrological models in identifying flood events in South Africa. The models considered are members of the Water Resource Reanalysis (WRR) developed in the European Earth2Observe project. Models performances are evaluated using a frequency analysis and several skill scores related to flood detection. The authors also provide an interesting comparison with damaging events reported in three different disaster databases. Results convincingly show the ability of such models to capture the majority of flood events, despite their coarse resolution. Performances vary from one model to another, due to differences in model structure. The authors also pointed out the improvement due to the increase in spatial resolution (from 0.5◦ in WRR1 to 0.25◦ in WRR2). Before concluding, the authors discuss the main limitations of the method. The conclusions are consistent