Articles | Volume 24, issue 3
Hydrol. Earth Syst. Sci., 24, 1031–1054, 2020
Hydrol. Earth Syst. Sci., 24, 1031–1054, 2020

Research article 04 Mar 2020

Research article | 04 Mar 2020

Calibration of hydrological models for ecologically relevant streamflow predictions: a trade-off between fitting well to data and estimating consistent parameter sets?

Thibault Hallouin et al.

Data sets

Met Éireann Daily Meteorological Data

Model code and software

SMARTpy: Conceptual Rainfall-Runoff Model (Version 0.2.0) T. Hallouin, E. Mockler, and M. Bruen

EFlowCalc: Ecological Streamflow Characteristics Calculator (Version 0.0.2) T. Hallouin

HydroEval: Evaluator for Streamflow Simulations (Version 0.0.2) T. Hallouin

Short summary
A hydrological model was used to compare different parameterisation strategies in view of predicting ecologically relevant streamflow indices in 33 Irish catchments. Compared for 14 different periods, a strategy fitting simulated and observed streamflow indices yielded better performance than fitting simulated and observed streamflow, but it also yielded a less consistent ensemble of parameter sets, suggesting that these indices may not be hydrologically relevant for model parameterisation.