Présentation le 9 juin 2022 par Chloé Ollivier, CNES/HSM/CESBIO dans le cadre des séminaires d’HydroSciences
Estimating actual evapotranspiration (ET) is essential for crop and groundwater management.
Estimation of plant water requirement allows for optimization of irrigation, as well as better estimation of groundwater recharge.
Unfortunately we do not have direct measurements of evapotranspiration at the watershed scale, so many models are developed.
In a first step, I will show the influence of the spatial and temporal distribution of evapotranspiration and recharge on the outflow of a karst hydrosystem.
In a second step, a data assimilation approach is used to explore the uncertainty of evapotranspiration at the field scale.