Articles | Volume 22, issue 12
https://doi.org/10.5194/hess-22-6415-2018
https://doi.org/10.5194/hess-22-6415-2018
Research article
 | 
10 Dec 2018
Research article |  | 10 Dec 2018

Redressing the balance: quantifying net intercatchment groundwater flows

Laurène Bouaziz, Albrecht Weerts, Jaap Schellekens, Eric Sprokkereef, Jasper Stam, Hubert Savenije, and Markus Hrachowitz

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Latest update: 20 Nov 2024
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Short summary
We quantify net intercatchment groundwater flows in the Meuse basin in a complementary three-step approach through (1) water budget accounting, (2) testing a set of conceptual hydrological models and (3) evaluating against remote sensing actual evaporation data. We show that net intercatchment groundwater flows can make up as much as 25 % of mean annual precipitation in the headwaters and should therefore be accounted for in conceptual models to prevent overestimating actual evaporation rates.