Articles | Volume 22, issue 12
Hydrol. Earth Syst. Sci., 22, 6415–6434, 2018
https://doi.org/10.5194/hess-22-6415-2018
Hydrol. Earth Syst. Sci., 22, 6415–6434, 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 et al.

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ED: Publish subject to revisions (further review by editor and referees) (24 Sep 2018) by Martijn Westhoff
AR by Laurène Bouaziz on behalf of the Authors (08 Oct 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (10 Oct 2018) by Martijn Westhoff
ED: Publish as is (14 Nov 2018) by Martijn Westhoff
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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.