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@ARTICLE{Herrmann:8984,
      author       = {Herrmann, F. and Jahnke, C. and Jenn, F. and Kunkel, R. and
                      Voigt, H.-J. and Wendland, F.},
      title        = {{G}roundwater recharge rates for regional groundwater
                      modelling: a case study using {GROWA} in the {L}ower {R}hine
                      lignite mining area, {G}ermany},
      journal      = {Hydrogeology Journal},
      volume       = {17},
      issn         = {0941-2816},
      address      = {Berlin},
      publisher    = {Springer},
      reportid     = {PreJuSER-8984},
      pages        = {2049 - 2060},
      year         = {2009},
      note         = {The results presented here were obtained in the framework
                      of a collaborative project of Research Centre Julich, RWE
                      Power AG in Cologne and the Brandenburg University of
                      Technology in Cottbus. We sincerely thank all persons and
                      institutions who provided us with the extensive data. The
                      reviewers and editors of this article are also acknowledged
                      for good and constructive comments.},
      abstract     = {Groundwater recharge rates calculated with the GROWA model
                      have been applied as the recharge boundary condition for the
                      regional groundwater model Rurscholle. This model simulates
                      groundwater dynamics in the Pleistocene aquifers of the
                      Lower Rhine lignite mining area (Germany). GROWA uses an
                      area-differentiated approach to calculate recharge rates
                      depending on runoff-relevant site characteristics, which are
                      represented by a set of baseflow indices. The regional
                      accuracy of the coupled groundwater and GROWA models has
                      been checked using groundwater hydrographs as validation
                      criteria. The results suggest that the current (unadjusted)
                      version of GROWA underestimates the regional groundwater
                      recharge rate by 10-20 mm/yr. The comparative analysis
                      identified areas where recharge calculations could be
                      improved by adjusting the baseflow indices for areas where
                      runoff is dominated by slope, low water-logging and a low
                      degree of sealing. Using the adjusted set of baseflow
                      indices, the mean groundwater recharge rate of the
                      Rurscholle region was modelled as approx. 170 mm/yr. This
                      study highlights the benefit of using a coupled approach and
                      being able to independently calibrate and validate
                      groundwater recharge boundary conditions in regional
                      groundwater models.},
      keywords     = {J (WoSType)},
      cin          = {ICG-4},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB793},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Geosciences, Multidisciplinary / Water Resources},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000271980400017},
      doi          = {10.1007/s10040-009-0493-4},
      url          = {https://juser.fz-juelich.de/record/8984},
}