Articles | Volume 19, issue 6
Research article
03 Jun 2015
Research article |  | 03 Jun 2015

Estimating flow and transport parameters in the unsaturated zone with pore water stable isotopes

M. Sprenger, T. H. M. Volkmann, T. Blume, and M. Weiler

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Cited articles

Abbasi, F., Jacques, D., Simunek, J., Feyen, J., and van Genuchten, M. T.: Inverse estimation of soil hydraulic and solute transport parameters from transient field experiments: heterogeneous soil, Trans. ASAE, 46, 1097–1111, 2003a.
Abbasi, F., Simunek, J., Feyen, J., van Genuchten, M. T., and Shouse, P. J.: Simultaneous inverse estimation of soil hydraulic and solute transport parameters from transient field experiments: Homogeneous soil, Trans. ASAE, 46, 1085–1095, 2003b.
Adomako, D., Maloszewski, P., Stumpp, C., Osae, S., and Akiti, T. T.: Estimating groundwater recharge from water isotope (δ2H, δ18O) depth profiles in the Densu River basin, Ghana, Hydrol. Sci. J., 55, 1405–1416,, 2010.
Birkel, C., Tetzlaff, D., Dunn, S. M., and Soulsby, C.: Using lumped conceptual rainfall–runoff models to simulate daily isotope variability with fractionation in a nested mesoscale catchment, Adv. Water Resour., 34, 383–394,, 2011.
Birkel, C., Soulsby, C., Tetzlaff, D., Dunn, S., and Spezia, L.: High-frequency storm event isotope sampling reveals time-variant transit time distributions and influence of diurnal cycles, Hydrol. Process., 26, 308–316,, 2012.
Short summary
We present a novel approach that includes information about the pore water stable isotopic composition in inverse model approaches to estimate soil hydraulic parameters. Different approaches are presented and their adequacy regarding the model efficiency, realism and parameter identifiability are discussed. The advantages of the new approach are shown by an application of the inverse estimated parameters to infer the water balance and the transit time for three different study sites.