Articles | Volume 25, issue 4
Hydrol. Earth Syst. Sci., 25, 2261–2277, 2021
https://doi.org/10.5194/hess-25-2261-2021

Special issue: Data acquisition and modelling of hydrological, hydrogeological...

Hydrol. Earth Syst. Sci., 25, 2261–2277, 2021
https://doi.org/10.5194/hess-25-2261-2021
Research article
27 Apr 2021
Research article | 27 Apr 2021

Unsaturated zone model complexity for the assimilation of evapotranspiration rates in groundwater modelling

Simone Gelsinari et al.

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Latest update: 25 Jun 2022
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Short summary
Estimates of recharge to groundwater are often driven by biophysical processes occurring in the soil column and, particularly in remote areas, are also always affected by uncertainty. Using data assimilation techniques to merge remotely sensed observations with outputs of numerical models is one way to reduce this uncertainty. Here, we show the benefits of using such a technique with satellite evapotranspiration rates and coupled hydrogeological models applied to a semi-arid site in Australia.