HESSD Hydrology and Earth System Sciences Discussions HESSD Hydrol. Earth Syst. Sci. Discuss. 1812-2116 Göttingen, Germany 10.5194/hess-2020-6 The HOOPLA toolbox: a HydrOlOgical Prediction LAboratory to explore ensemble rainfall-runoff modeling Thiboult Antoine 1 Seiller Gregory 2 4 Poncelet Carine 3 4 Anctil François https://orcid.org/0000-0003-4568-4883 1 Dept. of Civil and Water Engineering, Université Laval, Québec, Canada DHI, Nantes, France Crédit Agricole Sud Rhône Alpes, Grenoble, France formerly at: Université Laval, Québec, Canada Natural Sciences and Engineering Research Council of Canada NETGP 451456 28 01 2020 2020 1 18 Copyright: © 2020 Antoine Thiboult et al. 2020 This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/ This article is available from https://hess.copernicus.org/preprints/hess-2020-6/ The full text article is available as a PDF file from https://hess.copernicus.org/preprints/hess-2020-6/hess-2020-6.pdf

<p>This technical report introduces the HydrOlOgical Prediction LAboratory (HOOPLA) developed at Université Lavalfor ensemble lumped hydrological modelling. HOOPLA includes functionalities to perform calibration, simulation, and forecast for multiple hydrological models and various time steps. It includes a range of hydrometeorological tools such as calibration algorithms, data assimilation techniques, potential evapotranspiration formulas and a snow accounting routine. HOOPLA is a flexible framework coded in MATLAB that allows easy integration of user-defined hydrometeorological tools. This report also illustrates HOOPLA's functionalities using a set of 31 Canadian catchments.</p>