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@ARTICLE{Weynants:3843,
      author       = {Weynants, M. and Vereecken, H. and Javaux, M.},
      title        = {{R}evisting {V}ereecken {P}edotransfer {F}unctions:
                      {I}ntroducing a {C}losed-{F}orm {H}ydraulic {M}odel},
      journal      = {Vadose zone journal},
      volume       = {8},
      issn         = {1539-1663},
      address      = {Madison, Wis.},
      publisher    = {SSSA},
      reportid     = {PreJuSER-3843},
      pages        = {86 - 95},
      year         = {2009},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {We revisited the Vereecken database, which has been used to
                      derive pedotransfer functions (PTFs) to estimate the soil
                      hydraulic parameters of Belgian soils. We developed new PTFs
                      based on the Mualem-van Genuchten model, constraining m =
                      1-1/n and using fewer parameters. The goodness-of-fit was
                      similar to the one originally obtained by Vereecken. We used
                      a one-step procedure that allows direct quantification of
                      the correlation matrix and the uncertainties of the
                      estimated parameter values. The coefficients of the new PTFs
                      were estimated using a global search algorithm and they were
                      validated against independent data. The PTFs have a wider
                      range of applicability since: (i) they allow the use of the
                      closed-form solution of the unsaturated hydraulic
                      conductivity in the Mualem-van Genuchten model; and (ii)
                      they consider the effect of macroporosity. We determined
                      that the hydraulic conductivity measured close to saturation
                      could not be estimated based on the available estimators;
                      however, the hydraulic conductivity in the matrix domain was
                      predicted with high accuracy.},
      keywords     = {J (WoSType)},
      cin          = {ICG-4 / JARA-HPC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB793 / $I:(DE-82)080012_20140620$},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Environmental Sciences / Soil Science / Water Resources},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000263915100009},
      doi          = {10.2136/vzj2008.0062},
      url          = {https://juser.fz-juelich.de/record/3843},
}