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@ARTICLE{Rothfuss:256187,
      author       = {Rothfuss, Y. and Merz, S. and Vanderborght, J. and Hermes,
                      Normen and Weuthen, A. and Pohlmeier, A. and Vereecken, H.
                      and Brüggemann, N.},
      title        = {{L}ong-term and high-frequency non-destructive monitoring
                      of water stable isotope profiles in an evaporating soil
                      column},
      journal      = {Hydrology and earth system sciences},
      volume       = {19},
      number       = {10},
      issn         = {1607-7938},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2015-06171},
      pages        = {4067 - 4080},
      year         = {2015},
      abstract     = {The stable isotope compositions of soil water (δ2H and
                      δ18O) carry important information about the prevailing soil
                      hydrological conditions and for constraining ecosystem water
                      budgets. However, they are highly dynamic, especially during
                      and after precipitation events. In this study, we present an
                      application of a method based on gas-permeable tubing and
                      isotope-specific infrared laser absorption spectroscopy for
                      in situ determination of soil water δ2H and δ18O. We
                      conducted a laboratory experiment where a sand column was
                      initially saturated, exposed to evaporation for a period of
                      290 days, and finally rewatered. Soil water vapor δ2H and
                      δ18O were measured daily at each of eight available depths.
                      Soil liquid water δ2H and δ18O were inferred from those of
                      the vapor considering thermodynamic equilibrium between
                      liquid and vapor phases in the soil. The experimental setup
                      allowed for following the evolution of soil water δ2H and
                      δ18O profiles with a daily temporal resolution. As the soil
                      dried, we could also show for the first time the increasing
                      influence of the isotopically depleted ambient water vapor
                      on the isotopically enriched liquid water close to the soil
                      surface (i.e., atmospheric invasion). Rewatering at the end
                      of the experiment led to instantaneous resetting of the
                      stable isotope profiles, which could be closely followed
                      with the new method.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000364327800003},
      doi          = {10.5194/hess-19-4067-2015},
      url          = {https://juser.fz-juelich.de/record/256187},
}