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@ARTICLE{AlHazaimay:818268,
      author       = {Al-Hazaimay, Sadam. and Huisman, Johan. A. and Zimmermann,
                      Egon. and Vereecken, Harry.},
      title        = {{U}sing electrical anisotropy for structural
                      characterization of sediments: an experimental validation
                      study},
      journal      = {Near surface geophysics},
      volume       = {14},
      number       = {4},
      issn         = {1569-4445},
      address      = {Houten},
      publisher    = {EAGE},
      reportid     = {FZJ-2016-04742},
      pages        = {357 - 369},
      year         = {2016},
      abstract     = {Improved characterization of subsurface heterogeneity is
                      important to better understand a range of key processes in
                      the hydrologic cycle, such as overland flow, infiltration
                      into the soil, evaporation to the atmosphere, and
                      transpiration by plants. Recently, synthetic modelling
                      studies have shown that information on subsurface
                      heterogeneity can be obtained from the anisotropy in
                      electrical resistivity. The objective of this paper is to
                      experimentally validate the findings of this synthetic
                      modelling study. In order to do so, we developed a new
                      measurement procedure to determine the effective complex
                      electrical resistivity from a set of current injections and
                      voltage measurements on a heterogeneous sample. A synthetic
                      modelling study showed that this new measurement procedure
                      was able to reproduce the results of the previous study that
                      showed how the electrical properties and the correlation
                      length ratio of bimodal distributions of two materials can
                      be obtained from the effective complex electrical
                      resistivity measured in two perpendicular directions. After
                      validation of the new measurement approach, we constructed
                      two bimodal distributions in a 2D measurement cell and
                      applied the newly developed measurement strategy. We were
                      able to estimate the electrical properties, the volume
                      fraction, and the correlation length ratio with good
                      accuracy from the complex resistivity measurements in two
                      directions. The remaining differences were attributed to
                      variations in sediment thickness that occurred during sample
                      preparation. We conclude that anisotropy should not be
                      ignored but embraced when dealing with subsurface
                      heterogeneity and that proper interpretation of anisotropy
                      may actually be used to characterize subsurface
                      heterogeneity.},
      cin          = {IBG-3 / ZEA-2},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118 / I:(DE-Juel1)ZEA-2-20090406},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000381781500006},
      doi          = {10.3997/1873-0604.2016026},
      url          = {https://juser.fz-juelich.de/record/818268},
}