Articles | Volume 23, issue 7
https://doi.org/10.5194/hess-23-3007-2019
https://doi.org/10.5194/hess-23-3007-2019
Research article
 | 
17 Jul 2019
Research article |  | 17 Jul 2019

Continuous, near-real-time observations of water stable isotope ratios during rainfall and throughfall events

Barbara Herbstritt, Benjamin Gralher, and Markus Weiler

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Cited articles

Adomako, D., Maloszewski, P., Stumpp, C., Osae, S., and Akiti, T.: Estimating groundwater recharge from water isotope (δ2H, δ18O) depth profiles in the Densu River basin, Ghana, Hydrolog. Sci. J., 55, 1405–1416, 2010. 
Allen, S. T., Brooks, J. R., Keim, R. F., Bond, B. J., and McDonnell, J. J.: The role of pre-event canopy storage in throughfall and stemflow by using isotopic tracers, Ecohydrology, 7, 858–868, https://doi.org/10.1002/eco.1408, 2014. 
Allen, S. T., Keim, R. F., and McDonnell, J. J.: Spatial patterns of throughfall isotopic composition at the event and seasonal timescales, J. Hydrol., 522, 58–66, https://doi.org/10.1016/j.jhydrol.2014.12.029, 2015. 
Allen, S. T., Keim, R. F., Barnard, H. R., McDonnell, J. J., and Brooks, J. R.: The role of stable isotopes in understanding rainfall interception processes: a review, Wiley Interdiscip Rev Water, 4, e1187, https://doi.org/10.1002/wat2.1187, 2017. 
Allen, S. T., Kirchner, J. W., Braun, S., Siegwolf, R. T. W., and Goldsmith, G. R.: Seasonal origins of soil water used by trees, Hydrol. Earth Syst. Sci., 23, 1199–1210, https://doi.org/10.5194/hess-23-1199-2019, 2019. 
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Short summary
We describe a novel technique for the precise, quasi real-time observation of water-stable isotopes in gross precipitation and throughfall from tree canopies in parallel. Various processes (e.g. rainfall intensity, evapotranspiration, exchange with ambient vapour) thereby control throughfall intensity and isotopic composition. The achieved temporal resolution now competes with common meteorological measurements, thus enabling new ways to employ water-stable isotopes in forested catchments.