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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},
}