Articles | Volume 24, issue 3
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, Michael Bruen, and Fiachra E. O'Loughlin

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.