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@ARTICLE{Qu:188144,
      author       = {Qu, W. and Bogena, H. R. and Huisman, J. A. and
                      Vanderborght, J. and Schuh, M. and Priesack, E. and
                      Vereecken, H.},
      title        = {{P}redicting subgrid variability of soil water content from
                      basic soil information},
      journal      = {Geophysical research letters},
      volume       = {42},
      number       = {3},
      issn         = {0094-8276},
      address      = {Hoboken, NJ},
      publisher    = {Wiley},
      reportid     = {FZJ-2015-01605},
      pages        = {789-796},
      year         = {2015},
      abstract     = {Knowledge of unresolved soil water content variability
                      within model grid cells (i.e., subgrid variability) is
                      important for accurate predictions of land-surface energy
                      and hydrologic fluxes. Here we derived a closed-form
                      expression to describe how soil water content variability
                      depends on mean soil water content (σθ(<θ>)) using
                      stochastic analysis of 1-D unsaturated gravitational flow
                      based on the van Genuchten-Mualem (VGM) model. A sensitivity
                      analysis showed that the n parameter strongly influenced
                      both the shape and magnitude of the maximum of σθ(<θ>).
                      The closed-form expression was used to predict σθ(<θ>)
                      for eight data sets with varying soil texture using VGM
                      parameters obtained from pedotransfer functions that rely on
                      available soil information. Generally, there was good
                      agreement between observed and predicted σθ(<θ>) despite
                      the obvious simplifications that were used to derive the
                      closed-form expression. Furthermore, the novel closed-form
                      expression was successfully used to inversely estimate the
                      variability of hydraulic properties from observed σθ(<θ>)
                      data.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255) / 255 - Terrestrial Systems: From Observation to
                      Prediction (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255 / G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000351355600016},
      doi          = {10.1002/2014GL062496},
      url          = {https://juser.fz-juelich.de/record/188144},
}