Articles | Volume 22, issue 7
Hydrol. Earth Syst. Sci., 22, 3965–3981, 2018
https://doi.org/10.5194/hess-22-3965-2018
Hydrol. Earth Syst. Sci., 22, 3965–3981, 2018
https://doi.org/10.5194/hess-22-3965-2018
Research article
20 Jul 2018
Research article | 20 Jul 2018

Water ages in the critical zone of long-term experimental sites in northern latitudes

Matthias Sprenger et al.

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Short summary
We estimated water ages in the upper critical zone with a soil physical model (SWIS) and found that the age of water stored in the soil, as well as of water leaving the soil via evaporation, transpiration, or recharge, was younger the higher soil water storage (inverse storage effect). Travel times of transpiration and evaporation were different. We conceptualized the subsurface into fast and slow flow domains and the water was usually half as young in the fast as in the slow flow domain.