Articles | Volume 28, issue 21
https://doi.org/10.5194/hess-28-4837-2024
https://doi.org/10.5194/hess-28-4837-2024
Research article
 | 
07 Nov 2024
Research article |  | 07 Nov 2024

On the use of streamflow transformations for hydrological model calibration

Guillaume Thirel, Léonard Santos, Olivier Delaigue, and Charles Perrin

Data sets

Données changement climatique - SIM quotidienne Météo-France https://meteo.data.gouv.fr/datasets/6569b27598256cc583c917a7

Model code and software

airGR: Suite of GR Hydrological Models for Precipitation-Runoff Modelling (https://cran.r-project.org/package=airGR) L. Coron et al. https://doi.org/10.15454/EX11NA

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Short summary
We discuss how mathematical transformations impact calibrated hydrological model simulations. We assess how 11 transformations behave over the complete range of streamflows. Extreme transformations lead to models that are specialized for extreme streamflows but show poor performance outside the range of targeted streamflows and are less robust. We show that no a priori assumption about transformations can be taken as warranted.