Articles | Volume 28, issue 15
https://doi.org/10.5194/hess-28-3519-2024
https://doi.org/10.5194/hess-28-3519-2024
Research article
 | 
06 Aug 2024
Research article |  | 06 Aug 2024

Short high-accuracy tritium data time series for assessing groundwater mean transit times in the vadose and saturated zones of the Luxembourg Sandstone aquifer

Laurent Gourdol, Michael K. Stewart, Uwe Morgenstern, and Laurent Pfister

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Cited articles

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Short summary
Determining water transit times in aquifers is key to a better understanding of groundwater resources and their sustainable management. For our research, we used high-accuracy tritium data from 35 springs draining the Luxembourg Sandstone aquifer. We assessed the mean transit times of groundwater and found that water moves on average more than 10 times more slowly vertically in the vadose zone of the aquifer (~12 m yr-1) than horizontally in its saturated zone (~170 m yr-1).