% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Dlugi:156205,
      author       = {Dlugi, R. and Berger, M. and Zelger, M. and Hofzumahaus, A.
                      and Rohrer, F. and Holland, F. and Lu, K. and Kramm, G.},
      title        = {{T}he balances of mixing ratios and segregation intensity:
                      a case study from the field ({ECHO} 2003)},
      journal      = {Atmospheric chemistry and physics},
      volume       = {14},
      number       = {18},
      issn         = {1680-7324},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2014-05045},
      pages        = {10333 - 10362},
      year         = {2014},
      abstract     = {An inhomogeneous mixing of reactants causes a reduction of
                      their chemical removal compared to the homogeneously mixed
                      case in turbulent atmospheric flows. This can be described
                      by the intensity of segregation IS being the covariance of
                      the mixing ratios of two species divided by the product of
                      their means. Both terms appear in the balance equation of
                      the mixing ratio and are discussed for the reaction between
                      isoprene and OH for data of the field study ECHO 2003 above
                      a deciduous forest. For most of these data, IS is negatively
                      correlated with the fraction of mean OH mixing ratio
                      reacting with isoprene. IS is also negatively correlated
                      with the isoprene standard deviation. Both findings agree
                      with model results discussed by Patton et al. (2001) and
                      others. The correlation coefficient between OH and isoprene
                      and, therefore, IS increases with increasing mean reaction
                      rate. In addition, the balance equation of the covariance
                      between isoprene and OH is applied as the theoretical
                      framework for the analysis of the same field data. The
                      storage term is small, and, therefore, a diagnostic equation
                      for this covariance can be derived. The chemical reaction
                      term Rij is dominated by the variance of isoprene times the
                      quotient of mixing ratios of OH and isoprene. Based on these
                      findings a new diagnostic equation for IS is formulated.
                      Comparing different terms of this equation, IS and Rij show
                      a relation also to the normalised isoprene standard
                      deviation. It is shown that not only chemistry but also
                      turbulent and convective mixing and advection – considered
                      in a residual term – influence IS. Despite this finding, a
                      detection of the influence of coherent eddy transport above
                      the forest according to Katul et al. (1997) on IS fails, but
                      a relation to the turbulent and advective transport of
                      isoprene variance is determined. The largest values of IS
                      are found for most unstable conditions with increasing
                      buoyant production, confirming qualitatively model
                      predictions by Ouwersloot et al. (2011).},
      cin          = {IEK-8},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013},
      pnm          = {233 - Trace gas and aerosol processes in the troposphere
                      (POF2-233)},
      pid          = {G:(DE-HGF)POF2-233},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000344165600011},
      doi          = {10.5194/acp-14-10333-2014},
      url          = {https://juser.fz-juelich.de/record/156205},
}