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@ARTICLE{Mannschreck:34367,
      author       = {Mannschreck, K. and Klemp, D. and Kley, D. and Friedrich,
                      R. and Kühlwein, J. and Wickert, B. and Matuska, P. and
                      Habram, M. and Slemr, E. C.},
      title        = {{E}valuation of the emission inventory by comparisons of
                      modelled and measured emission ratios of individual {HC}s,
                      {CO}, and {NO}x},
      journal      = {Atmospheric environment},
      volume       = {36},
      issn         = {1352-2310},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PreJuSER-34367},
      pages        = {81 - 94},
      year         = {2002},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Air quality models require emission inventories of
                      individual compounds with high temporal and spatial
                      resolution. These emission inventories are calculated by
                      complex emission models. To evaluate these models, emission
                      ratios of non-methane hydrocarbons (HCs, containing only H-
                      and C-atoms), CO and NOx of the city of Augsburg were
                      determined during two field campaigns in March and October
                      1998. The measured emission ratios have been compared with
                      emission ratios calculated by an emission model at two
                      accuracy levels.Only C-2-C-10 HCs were measured
                      quantitatively by the applied techniques. C-11-C-13 HCs were
                      measured with losses increasing with the number of C atoms,
                      oxygenated and halogenated volatile organic compounds were
                      not measured at all. The direct comparison could be made
                      only for those HCs whose individual emissions can be
                      specified by the model. They represent $21\%$ of the total
                      predicted volatile organic compound emissions and-according
                      to the model-originate to a large percentage from
                      traffic-related emission. The measured HCi/HCsum emission
                      ratios (HCsum:=Sigma(HCi) for C-2-C-10-HCs and HCi:=mixing
                      ratio of an individual hydrocarbon) for these compounds
                      agreed within $30\%$ for most compounds. The HCi/HCsum
                      emission ratios measured in Augsburg are very similar to
                      emission ratios from traffic-related sources suggesting that
                      the emission model reflects the traffic emissions quite
                      well. In order to consider all measured HCs for comparison
                      the share of unspecified HCs, which are detectable by the GC
                      system and should therefore be included in the experimental
                      results, was estimated. Taking this into account yields a
                      deviation between modelled and measured monthly mean values
                      of HCi/CO and HCi/NOx of about $40\%.$ The comparison of
                      modelled and measured HCi/CO with HCi/HCsum emission ratios
                      derived from the investigation based on single events
                      confirms this finding: in this case an overestimation by the
                      model of a factor of 1.5-2 was found. Since modelled and
                      measured NOx and CO emissions agreed well within the
                      uncertainty ranges, these deviations can be attributed to
                      overestimation of HC emissions.},
      keywords     = {J (WoSType)},
      cin          = {ICG-II},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB48},
      pnm          = {Chemie und Dynamik der Geo-Biosphäre},
      pid          = {G:(DE-Juel1)FUEK257},
      shelfmark    = {Environmental Sciences / Meteorology $\&$ Atmospheric
                      Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000177154100007},
      url          = {https://juser.fz-juelich.de/record/34367},
}