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@ARTICLE{VolzThomas:34305,
author = {Volz-Thomas, A. and Pätz, H.-W. and Houben, N. and Konrad,
S. and Mihelcic, D. and Klüpfel, T. and Perner, C. R.},
title = {{I}norganic trace gases and peroxy radicals during
{BERLIOZ} at {P}abstthum : an investigation of the {P}hoto
{S}tationary {S}tate ({PPS}) of {NO}x and {O}3},
journal = {Journal of Geophysical Research},
volume = {108},
issn = {0148-0227},
address = {Washington, DC},
publisher = {Union},
reportid = {PreJuSER-34305},
pages = {8248},
year = {2003},
note = {Record converted from VDB: 12.11.2012},
abstract = {[1] Meteorological and chemical measurements, including
peroxy radicals, made during the Berlin Ozone Experiment
(BERLIOZ) in summer 1998 at Pabstthum, a rural site about 50
km NW of the city, are described. The analytical techniques
and data quality are discussed, including the comparison of
different methods deployed side by side at Pabstthum. The
highest concentrations of NOx (>20 ppb) and other precursors
were observed on days when relatively young air was advected
to Pabstthum from the greater Berlin area. NOx often
increased during the night due to emissions from the
surrounding soils under stagnant conditions with a shallow
boundary layer as is evident in the strong negative
correlation between nocturnal NO mixing ratios and product
of ozone and wind speed. The ozone production rate (PO3)
calculated from the photostationary state (PSS) of NOx and
O-3 increased with NO and reached values of up to 90 ppb
h(-1). PO3 calculated from NO and the measured peroxy
radical concentrations was much lower, around or below 10
ppb h(-1). The lower production rates obtained from the
peroxy radical measurements are consistent with the ozone
budget in the city plume of Berlin. The new JPL
recommendation for the rate coefficient of the reaction of
NO with O-3 slightly improves the disagreement between PSS
and measured peroxy radicals. However, another enhancement
of $10-20\%$ in the rate coefficient would be required in
order to match the results within the uncertainty of the
measurements in the high NOx regime. Even then, PSS remains
to overpredict PO3 by a factor of 2 at low NOx
concentrations. Hence, a yet unidentified process must exist
in the atmosphere that converts NO to NO2 without leading to
a net production of ozone. The PSS results from other
studies are similar as at Pabstthum, suggesting that the
overestimation of peroxy radicals and PO3 by the PSS
approach is not a particular feature of the conditions at
the site.},
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:000181797900002},
doi = {10.1029/2001JD001255},
url = {https://juser.fz-juelich.de/record/34305},
}