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@ARTICLE{Winkler:34365,
author = {Winkler, J. and Blank, P. and Glaser, K. and Gomes, J. A.
G. and Habram, M. and Jambert, C. and Jaeschke, W. and
Konrad, S. and Kurtenbach, R. and Lenschow, P. and Lörzer,
J. C. and Perros, P. E. and Pesch, M. and Prümke, H. J. and
Rappenglück, B. and Schmitz, T. and Slemr, E. C. and
Volz-Thomas, A. and Wickert, B.},
title = {{G}round-based and airborne measurements of nonmethane
hydrocarbons in {BERLIOZ} : analysis and selected results},
journal = {Journal of atmospheric chemistry},
volume = {42},
issn = {0167-7764},
address = {Dordrecht [u.a.]},
publisher = {Springer Science + Business Media B.V},
reportid = {PreJuSER-34365},
pages = {465 - 492},
year = {2002},
note = {Record converted from VDB: 12.11.2012},
abstract = {During the Berlin Ozone Experiment BERLIOZ in July-August
1998 quasi-continuous measurements of C-2-C-12 nonmethane
hydrocarbons (NMHCs) were carried out at 10 sites in and
around the city of Berlin using on-line gas-chromatographic
systems (GCs) with a temporal resolution of 20-120 minutes.
Additional airborne NMHC measurements were made using
canister sampling on three aircraft and an on-line GC system
on a fourth aircraft. The ground based data are analyzed to
characterize the different sites and to identify the
influence of emissions from Berlin on its surroundings.
Benzene mixing ratios at the 4 rural sites were rather low
(<0.5 ppbv). Berlin (and the surrounding highway ring) was
identified as the main source of anthropogenic NMHCs at
Eichstadt and Blossin, whilst other sources were important
at the furthermost site Menz. The median toluene/benzene
concentration ratio in Berlin was 2.3 ppbv/ppbv, agreeing
well with measurements in other German cities. As expected,
the ratios at the background sites decreased with increasing
distance to Berlin and were usually around one or below. On
20 and 21 July, the three northwesterly sites were situated
downwind of Berlin and thus were influenced by its
emissions. Considering the distance between the sites and
the windspeed, the city plume was observed at reasonable
time scales, showing decreasing toluene/benzene ratios of
2.3, 1.6 and 1.3 with increasing distance from Berlin.
Isoprene was the only biogenic NMHC measured at BERLIOZ. It
was the most abundant compound at the background sites on
the hotter days, dominating the local NMHC reactivity with
averaged contributions to the total OH loss rate of $51\%$
and $70\%$ at Pabstthum and Blossin, respectively. Emission
ratios (relative to CO and to the sum of analysed NMHCs)
were derived from airborne measurements. The comparison with
an emission inventory suggests traffic-related emissions to
be the predominating source of the considered hydrocarbon
species. Problems were identified with the emission
inventory for propane, ethene and pentanes.},
keywords = {J (WoSType)},
cin = {ICG-II},
ddc = {540},
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:000175947400020},
doi = {10.1023/A:1015709214016},
url = {https://juser.fz-juelich.de/record/34365},
}