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@ARTICLE{Merz:154663,
      author       = {Merz, Steffen and Pohlmeier, Andreas and Vanderborght, Jan
                      and van Dusschoten, Dagmar and Vereecken, Harry},
      title        = {{M}oisture profiles of the upper soil layer during
                      evaporation monitored by {NMR}},
      journal      = {Water resources research},
      volume       = {50},
      number       = {6},
      issn         = {0043-1397},
      address      = {Washington, DC},
      publisher    = {AGU},
      reportid     = {FZJ-2014-03947},
      pages        = {5184 - 5195},
      year         = {2014},
      abstract     = {Near-surface soil moisture profiles contain important
                      information about the evaporation process from a bare soil.
                      In this study, we demonstrated that such profiles could be
                      monitored noninvasively and with high spatial resolution
                      using Nuclear Magnetic Resonance (NMR). Soil moisture
                      profiles were measured in a column exposed to evaporation
                      for a period of 67 days using a stationary Magnetic
                      Resonance Imaging (MRI) high field scanner and a unilateral
                      NMR sensor. The column was packed with medium sand and
                      initially saturated. Two distinct shapes of soil moisture
                      profiles that are characteristic for stage I (evaporation
                      rate is controlled by atmospheric demand) and stage II
                      (evaporation rate is controlled by the porous medium) of the
                      evaporation process were followed by both MRI and unilateral
                      NMR. During stage I, an approximately uniform decrease of
                      soil moisture over time was monitored, whereas during stage
                      II, S-shaped moisture profiles developed which receded
                      progressively into the soil column. These promising results
                      and the specific design of the unilateral NMR system make it
                      very well suited for determining soil moisture profiles in
                      the field.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {246 - Modelling and Monitoring Terrestrial Systems: Methods
                      and Technologies (POF2-246) / 255 - Terrestrial Systems:
                      From Observation to Prediction (POF3-255) / DFG project
                      15232683 - TRR 32: Muster und Strukturen in
                      Boden-Pflanzen-Atmosphären-Systemen: Erfassung,
                      Modellierung und Datenassimilation (15232683)},
      pid          = {G:(DE-HGF)POF2-246 / G:(DE-HGF)POF3-255 /
                      G:(GEPRIS)15232683},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000340430400036},
      doi          = {10.1002/2013WR014809},
      url          = {https://juser.fz-juelich.de/record/154663},
}