On constraining a lumped hydrological model with both piezometry and streamflow: results of a large sample evaluation

Pelletier, Antoine; Andréassian, Vazken

doi:https://doi.org/10.5194/hess-26-2733-2022

Articles | Volume 26, issue 10

https://doi.org/10.5194/hess-26-2733-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-26-2733-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 10

Research article

|

24 May 2022

Research article |

| 24 May 2022

On constraining a lumped hydrological model with both piezometry and streamflow: results of a large sample evaluation

Antoine Pelletier and Vazken Andréassian

Data sets

Base de données hydroclimatiques observées à l’échelle de la France O. Delaigue, B. Génot, L. Lebecherel, P. Brigode, and P.-Y. Bourgin https://webgr.inrae.fr/base-de-donnees

Model code and software

Suite of GR Hydrological Models for Precipitation-Runoff Modelling, r package version 1.6.10.4 L. Coron, O. Delaigue, G. Thirel, D. Dorchies, C. Perrin, and C. Michel https://doi.org/10.15454/EX11NA

DEoptim: Differential Evolution in R, version 2.2-5 D. Ardia, K. M. Mullen, B. G. Peterson, and J. Ulrich https://CRAN.R-project.org/package=DEoptim

RcppDE: Global Optimization by Differential Evolution in C++, r package version 0.1.6 D. Eddelbuettel https://CRAN.R-project.org/package=RcppDE

Short summary

A large part of the water cycle takes place underground. In many places, the soil stores water during the wet periods and can release it all year long, which is particularly visible when the river level is low. Modelling tools that are used to simulate and forecast the behaviour of the river struggle to represent this. We improved an existing model to take underground water into account using measurements of the soil water content. Results allow us make recommendations for model users.