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@ARTICLE{Sillman:34362,
author = {Sillman, S. and Vautard, R. and Menut, L. and Kley, D.},
title = {{O}3-{NO}x-{VOC} sensitivity of {NO}x-{VOC} indicators in
{P}aris : results from models and {ESQUIF} measurements},
journal = {Journal of Geophysical Research},
volume = {108},
issn = {0148-0227},
address = {Washington, DC},
publisher = {Union},
reportid = {PreJuSER-34362},
pages = {17},
year = {2003},
note = {Record converted from VDB: 12.11.2012},
abstract = {[1] A three-dimensional photochemical model has been used
to interpret aircraft measurements from the Atmospheric
Pollution Over the Paris Area campaign near Paris, with
special attention to measurements that are related to
predicted O-3-NOx-volatile organic compound (VOC)
sensitivity. The model (CHIMERE) includes a representation
of ozone formation over Europe and a more detailed spatial
representation of the region around Paris. A series of model
scenarios were developed with varying wind speeds and
emission rates. Comparisons are shown with measured O-3,
total reactive nitrogen (NOy), summed VOCs, and isoprene.
Results show that model NOx-VOC sensitivity predictions are
correlated with the ratio O-3/NOy but not with
O-3/peroxyacetyl nitrate. Measured O-3 and NOy on high-ozone
days tends to agree with model values when models predict
NOx-sensitive or transitional chemistry but not when models
predict VOC-sensitive chemistry. Model values for O-3/NOy
and the O-3-NOy slope are lower than measured values,
suggesting the possibility of missing, unmeasured VOCs in
the Paris plume. Standard performance tests for ozone
models, such as normalized bias, show good agreement between
models and measurements, even in cases when significant
differences appear in the O-3-NOy correlation. Model
predictions shift slightly toward NOx-sensitive chemistry
when model wind speeds are increased. Isoprene represents
$20\%$ of total VOC reactivity - weighted carbon in the
center of the Paris plume and $50\%$ in the surrounding
rural area during high-ozone events.},
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 = {Meteorology $\&$ Atmospheric Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000183744400001},
doi = {10.1029/2002JD001561},
url = {https://juser.fz-juelich.de/record/34362},
}