Articles | Volume 23, issue 10
https://doi.org/10.5194/hess-23-4367-2019
https://doi.org/10.5194/hess-23-4367-2019
Research article
 | 
28 Oct 2019
Research article |  | 28 Oct 2019

New water fractions and transit time distributions at Plynlimon, Wales, estimated from stable water isotopes in precipitation and streamflow

Julia L. A. Knapp, Colin Neal, Alessandro Schlumpf, Margaret Neal, and James W. Kirchner

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Cited articles

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CEH: National River Flow Archive, Natural Environment Research Council – Center for Ecology & Hydrology, Wallingford, available at: https://nrfa.ceh.ac.uk, last access: 8 October 2019. 
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Short summary
We describe, present, and make publicly available two extensive data sets of stable water isotopes in streamwater and precipitation at Plynlimon, Wales, consisting of measurements at 7-hourly intervals for 17 months and at weekly intervals for 4.25 years. We use these data to calculate new water fractions and transit time distributions for different discharge rates and seasons, thus quantifying the contribution of recent precipitation to streamflow under different conditions.