Articles | Volume 28, issue 16
https://doi.org/10.5194/hess-28-3675-2024
https://doi.org/10.5194/hess-28-3675-2024
Research article
 | 
16 Aug 2024
Research article |  | 16 Aug 2024

Monthly new water fractions and their relationships with climate and catchment properties across Alpine rivers

Marius G. Floriancic, Michael P. Stockinger, James W. Kirchner, and Christine Stumpp

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Cited articles

Allen, S. T., Keim, R. F., Barnard, H. R., McDonnell, J. J., and Renée Brooks, J.: The role of stable isotopes in understanding rainfall interception processes: a review, WIREs Water, 4, e1187, https://doi.org/10.1002/wat2.1187, 2017. 
Allen, S. T., Kirchner, J. W., and Goldsmith, G. R.: Predicting Spatial Patterns in Precipitation Isotope δ2H and δ18O Seasonality Using Sinusoidal Isoscapes, Geophys. Res. Lett., 45, 4859–4868, https://doi.org/10.1029/2018GL077458, 2018. 
Berghuijs, W. R. and Kirchner, J. W.: The relationship between contrasting ages of groundwater and streamflow: Connecting Storage and Streamflow Ages, Geophys. Res. Lett., 44, 8925–8935, https://doi.org/10.1002/2017GL074962, 2017. 
Brantley, S. L., Eissenstat, D. M., Marshall, J. A., Godsey, S. E., Balogh-Brunstad, Z., Karwan, D. L., Papuga, S. A., Roering, J., Dawson, T. E., Evaristo, J., Chadwick, O., McDonnell, J. J., and Weathers, K. C.: Reviews and syntheses: on the roles trees play in building and plumbing the critical zone, Biogeosciences, 14, 5115–5142, https://doi.org/10.5194/bg-14-5115-2017, 2017. 
Briffa, K. R., van der Schrier, G., and Jones, P. D.: Wet and dry summers in Europe since 1750: evidence of increasing drought, Int. J. Climatol., 29, 1894–1905, https://doi.org/10.1002/joc.1836, 2009. 
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The Alps are a key water resource for central Europe, providing water for drinking, agriculture, and hydropower production. To assess water availability in streams, we need to understand how much streamflow is derived from old water stored in the subsurface versus more recent precipitation. We use tracer data from 32 Alpine streams and statistical tools to assess how much recent precipitation can be found in Alpine rivers and how this amount is related to catchment properties and climate.