Erwin Zehe

TL;DR: The IAHS Decade on Predictions in Ungauged Basins (PUB) as discussed by the authors is a new initiative launched by the International Association of Hydrological Sciences (IAHS) aimed at formulating and implementing appropriate science programmes to engage and energize the scientific community, in a coordinated manner, towards achieving major advances in the capacity to make predictions in ungauged basins.

TL;DR: The Prediction in Ungauged Basins (PUB) initiative of the International Association of Hydrological Sciences (IAHS) launched in 2003 and concluded by the PUB Symposium 2012 held in Delft (23-25 October 2012), set out to shift the scientific culture of hydrology towards improved scientific understanding of hydrological processes, as well as associated uncertainties and the development of models with increasing realism and predictive power as discussed by the authors.

TL;DR: It is argued that BC is currently often used in an invalid way: it is added to the GCM/RCM model chain without sufficient proof that the consistency of the latter is maintained, and narrows the uncertainty range of simulations and predictions without, however, providing a satisfactory physical justification.

TL;DR: The authors argued that bias correction, which has a considerable influence on the results of impact studies, is not a valid procedure in the way it is currently used: it impairs the advantages of Circulation Models which are based on established physical laws by altering spatiotemporal field 10

TL;DR: In this article, the authors compared event-based runoff coefficients with four well-established separation methods, as well as a newly developed separation method, which is based on the theory of linear storage, and found that runoff coefficients reported in the literature often convey less information than required to allow for catchment classification.