Review of the manuscript "An integrated multi-fingerprint sensitivity-nested approach for regional model parameter estimation and catchment similarity assessment" by Höl-lering et al.In this manuscript, Höllering et al. provide an approach to obtain a better understanding of model parameter behaviour and a more process-based model parameter estimation under consideration of spatial variations. For this, they used at first a fingerprint analysis to investigate how well the model performs for different aspects of the hydrological C1