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@ARTICLE{vandeBoer:171810,
      author       = {van de Boer, A. and Moene, A. F. and Graf, A. and
                      Schüttemeyer, D. and Simmer, C.},
      title        = {{D}etection of {E}ntrainment {I}nfluences on
                      {S}urface-{L}ayer {M}easurements and {E}xtension of
                      {M}onin–{O}bukhov {S}imilarity {T}heory},
      journal      = {Boundary layer meteorology},
      volume       = {152},
      number       = {1},
      issn         = {1573-1472},
      address      = {Dordrecht [u.a.]},
      publisher    = {Springer Science + Business Media B.V},
      reportid     = {FZJ-2014-05372},
      pages        = {19 - 44},
      year         = {2014},
      abstract     = {We present a method to detect influences of boundary-layer
                      processes on surfacelayermeasurements, using statistics and
                      spectra of surface-layer variables only.We validatedour
                      detection method with boundary-layer measurements.
                      Furthermore, we confirm thatMonin–Obukhov similarity
                      functions fit well to temperature-variance data obtained at
                      twodifferent homogeneous surfaces. However, we found that
                      humidity variance measurementsdeviate from the universal
                      functions above one of the two studied surfaces for days on
                      whichentrained air reached the surface layer. These results
                      confirm that Monin–Obukhov similaritytheory should be used
                      with care in the analysis of surface-layer data. Finally, we
                      proposethe use of an extra term in flux-variance relations
                      that depends on the entrainment ratiofor humidity and on the
                      boundary-layer height. If boundary-layer measurements are
                      notavailable, we show how the entrainment ratio for humidity
                      can be approximated from theskewness of the humidity
                      distribution.},
      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
                      139819005 - Links between local scale and catchment scale
                      measurements and modelling of gas exchange processes over
                      land surfaces (139819005)},
      pid          = {G:(DE-HGF)POF2-246 / G:(DE-HGF)POF3-255 /
                      G:(GEPRIS)139819005},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000338199600002},
      doi          = {10.1007/s10546-014-9920-8},
      url          = {https://juser.fz-juelich.de/record/171810},
}