Fabrizio Fenicia

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: In this paper, the authors advocate using the method of multiple working hypotheses for systematic and stringent testing of model alternatives in hydrology and discuss how the multiple-hypothesis approach provides the flexibility to formulate alternative representations describing both individual processes and the overall system.

TL;DR: In this paper, a flexible framework for conceptual hydrological modeling is proposed, which allows the hydrologist to hypothesize, build, and test different model structures using combinations of generic components.

TL;DR: In this article, the authors proposed a methodology where they systematically update the model structure, progressively incorporating new hypotheses of catchment behavior, and applied this methodology to the Alzette river basin in Luxembourg, showing how stepwise model improvement helps to identify the behavior of this catchment.

TL;DR: In this paper, the authors present a flexible approach to model development where the model structure is adapted progressively based on catchment characteristics and the data described by the experimentalist, and demonstrate this approach with the Maimai catchment in New Zealand, a location with a large availability of data, including stream discharge, groundwater levels, and stream isotope measurements.