Articles | Volume 11, issue 7
Geosci. Model Dev., 11, 3045–3069, 2018
Geosci. Model Dev., 11, 3045–3069, 2018

Model evaluation paper 31 Jul 2018

Model evaluation paper | 31 Jul 2018

EcH2O-iso 1.0: water isotopes and age tracking in a process-based, distributed ecohydrological model

Sylvain Kuppel et al.

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Cited articles

Ala-aho, P., Tetzlaff, D., McNamara, J. P., Laudon, H., and Soulsby, C.: Using isotopes to constrain water flux and age estimates in snow-influenced catchments using the STARR (Spatially distributed Tracer-Aided Rainfall–Runoff) model, Hydrol. Earth Syst. Sci., 21, 5089–5110,, 2017. a, b, c, d, e
Albrektson, A.: Sapwood basal area and needle mass of Scots pine (Pinus sylvestris L.) trees in central Sweden, Forestry, 57, 35–43, 1984. a
Allison, G. B. and Leaney, F. W.: Estimation of isotopic exchange parameters, using constant-feed pans, J. Hydrol., 55, 151–161,, 1982. a
Barnes, C. J. and Bonell, M.: Application of unit hydrograph techniques to solute transport in catchments, Hydrol. Process., 10, 793–802, 1996. a
Benettin, P., Soulsby, C., Birkel, C., Tetzlaff, D., Botter, G., and Rinaldo, A.: Using SAS functions and high-resolution isotope data to unravel travel time distributions in headwater catchments, Water Resour. Res., 53, 1864–1878, 2017. a, b
Short summary
This paper presents a novel ecohydrological model in which both the fluxes of water and the relative concentration in stable isotopes (2H and 18O) can be simulated. Spatial heterogeneity, lateral transfers and plant-driven water use are incorporated. A thorough evaluation shows encouraging results using a wide range of in situ measurements from a Scottish catchment. The same modelling principles are then used to simulate how (and where) precipitation ages as water transits in the catchment.