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Hydrology 2018, 5(4), 64; https://doi.org/10.3390/hydrology5040064

Impact of Hydrological Modellers’ Decisions and Attitude on the Performance of a Calibrated Conceptual Catchment Model: Results from a ‘Modelling Contest’

1
Department of Research and Knowledge Transfer, Jade University of Applied Sciences, Ofener Straße 16/19, 26121 Oldenburg, Germany
2
Department of Geography, University of Bonn, Meckenheimer Allee 166, 53115 Bonn, Germany
3
NTU Athens, School of Rural and Surveying Engineering, Zografou Campus 9, Iroon Polytechniou str, 15780 Zografou, Greece
4
Department of Physical Geography, Faculty of Geosciences, Utrecht University, 3512 JE Utrecht, The Netherlands
5
TU Darmstadt, Franziska-Braun-Str. 7, 64287 Darmstadt, Germany
6
BTU Cottbus, Postfach 101344, 03013 Cottbus, Germany
7
TU Dresden, Mommsenstraße 13, 01602 Dresden, Germany
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University of the Aegean, University Hill, 81100 Mytilene, Lesvos, Greece
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Parthenope University of Naples, Via Ammiraglio Ferdinando Acton, 38, 80133 Napoli, NA, Italy
10
University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany
11
Democritus University of Thrace, University Campus, 69100 Komotini, Greece
12
University of Jena, Löbdergraben 32, 07743 Jena, Germany
13
TU München, Arcisstraße 21, 80333 München, Germany
14
University of Hannover, Appelstr. 9a, 30167 Hannover, Germany
*
Author to whom correspondence should be addressed.
Received: 20 October 2018 / Revised: 14 November 2018 / Accepted: 15 November 2018 / Published: 19 November 2018
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Abstract

In this study, 17 hydrologists with different experience in hydrological modelling applied the same conceptual catchment model (HBV) to a Greek catchment, using identical data and model code. Calibration was performed manually. Subsequently, the modellers were asked for their experience, their calibration strategy, and whether they enjoyed the exercise. The exercise revealed that there is considerable modellers’ uncertainty even among the experienced modellers. It seemed to be equally important whether the modellers followed a good calibration strategy, and whether they enjoyed modelling. The exercise confirmed previous studies about the benefit of model ensembles: Different combinations of the simulation results (median, mean) outperformed the individual model simulations, while filtering the simulations even improved the quality of the model ensembles. Modellers’ experience, decisions, and attitude, therefore, have an impact on the hydrological model application and should be considered as part of hydrological modelling uncertainty. View Full-Text
Keywords: conceptual hydrological model; HBV; modellers’ decisions; model ensemble; modellers’ uncertainty conceptual hydrological model; HBV; modellers’ decisions; model ensemble; modellers’ uncertainty
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Bormann, H.; De Brito, M.M.; Charchousi, D.; Chatzistratis, D.; David, A.; Grosser, P.F.; Kebschull, J.; Konis, A.; Koutalakis, P.; Korali, A.; Krauzig, N.; Meier, J.; Meliadou, V.; Meinhardt, M.; Munnelly, K.; Stephan, C.; De Vos, L.F.; Dietrich, J.; Tzoraki, O. Impact of Hydrological Modellers’ Decisions and Attitude on the Performance of a Calibrated Conceptual Catchment Model: Results from a ‘Modelling Contest’. Hydrology 2018, 5, 64.

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