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@ARTICLE{Apel:1002,
      author       = {Apel, E. C. and Brauers, T. and Koppmann, R. and Bandowe,
                      B. and Boßmeyer, J. and Holzke, C. and Tillmann, R. and
                      Wahner, A. and Wegener, R. and Brunner, A. and Jocher, M.
                      and Ruuskanen, T. and Spirig, C. and Steigner, D. and
                      Steinbrecher, R. and Gomez Alvarez, E. and Müller, K. and
                      Burrows, J. P. and Schade, G. and Solomon, S. J. and
                      Ladstätter-Weißenmayer, A. and Simmonds, P. and Young, D.
                      and Hopkins, J. R. and Lewis, A. C. and Legreid, G. and
                      Reimann, S. and Hansel, A. and Wisthaler, A. and Blake, R.
                      S. and Ellis, A. M. and Monks, P. S. and Wyche, K.P.},
      title        = {{I}ntercomparison of oxygenated volatile organic compound
                      measurements at the {SAPHIR} atmosphere simulation chamber},
      journal      = {Journal of Geophysical Research},
      volume       = {113},
      issn         = {0148-0227},
      address      = {Washington, DC},
      publisher    = {Union},
      reportid     = {PreJuSER-1002},
      pages        = {D20307},
      year         = {2008},
      note         = {This work was supported by the EU FP-6 programs ACCENT
                      (GOCE CT-2004-505337) and EUROCHAMP (RII3-CT-2004-505968).
                      We thank R. Haseler and F. J. Johnen for the support of the
                      experiments.},
      abstract     = {This paper presents results from the first large-scale in
                      situ intercomparison of oxygenated volatile organic compound
                      (OVOC) measurements. The intercomparison was conducted blind
                      at the large (270 m(3)) simulation chamber, Simulation of
                      Atmospheric Photochemistry in a Large Reaction Chamber
                      (SAPHIR), in Julich, Germany. Fifteen analytical
                      instruments, representing a wide range of techniques, were
                      challenged with measuring atmospherically relevant OVOC
                      species and toluene (14 species, C-1 to C-7) in the
                      approximate range of 0.5-10 ppbv under three different
                      conditions: (1) OVOCs with no humidity or ozone, (2) OVOCs
                      with humidity added (r.h. approximate to $50\%),$ and (3)
                      OVOCs with ozone (approximate to 60 ppbv) and humidity (r.h.
                      approximate to $50\%).$ The SAPHIR chamber proved to be an
                      excellent facility for conducting this experiment.
                      Measurements from individual instruments were compared to
                      mixing ratios calculated from the chamber volume and the
                      known amount of OVOC injected into the chamber. Benzaldehyde
                      and 1-butanol, compounds with the lowest vapor pressure of
                      those studied, presented the most overall difficulty because
                      of a less than quantitative transfer through some of the
                      participants' analytical systems. The performance of each
                      individual instrument is evaluated with respect to reference
                      values in terms of time series and correlation plots for
                      each compound under the three measurement conditions. A few
                      of the instruments performed very well, closely matching the
                      reference values, and all techniques demonstrated the
                      potential for quantitative OVOC measurements. However, this
                      study showed that nonzero offsets are present for specific
                      compounds in a number of instruments and overall
                      improvements are necessary for the majority of the
                      techniques evaluated here.},
      keywords     = {J (WoSType)},
      cin          = {ICG-2 / JARA-ENERGY / JARA-SIM},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB791 / $I:(DE-82)080011_20140620$ /
                      I:(DE-Juel1)VDB1045},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK406},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000260393100005},
      doi          = {10.1029/2008JD009865},
      url          = {https://juser.fz-juelich.de/record/1002},
}