Articles | Volume 28, issue 1
Research article
03 Jan 2024
Research article |  | 03 Jan 2024

How to account for irrigation withdrawals in a watershed model

Elisabeth Brochet, Youen Grusson, Sabine Sauvage, Ludovic Lhuissier, and Valérie Demarez

Data sets

SENTINEL-2, ESA's Optical High-Resolution ESA

Shuttle Radar Topography Mission 1 Arc-Second Global USGS

Référentiel Régional Pédologique GisSol

Registre Parcellaire graphique IGN

Theia OSO Land Cover Map J. Inglada et al.

Enquête sur les pratiques culturales en grandes cultures et prairies 2017 Agreste

Model code and software

Customized SWAT+ model to include remote sensing NDVI data Elisabeth Brochet

Short summary
This study aims to take into account irrigation withdrawals in a watershed model. The model we used combines agriculture and hydrological modeling. Two different crop models were compared, the first based on air temperature and the second based on Sentinel-2 satellite data. Results show that including remote sensing data leads to better emergence dates. Both methods allow us to simulate the daily irrigation withdrawals and downstream flow with a good accuracy, especially during low-flow periods.