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@ARTICLE{Groo:45972,
author = {Grooß, J.-U. and Günther, G. and Müller, R. and Konopka,
Paul and Bausch, S. and Schlager, H. and Voigt, C. and Volk,
C. M. and Toon, G. C.},
title = {{S}imulation of denitrification and ozone loss for the
{A}ctic winter 2002/2003},
journal = {Atmospheric chemistry and physics},
volume = {5},
issn = {1680-7316},
address = {Katlenburg-Lindau},
publisher = {EGU},
reportid = {PreJuSER-45972},
pages = {1437 - 1448},
year = {2005},
note = {Record converted from VDB: 12.11.2012},
abstract = {We present simulations with the Chemical Lagrangian Model
of the Stratosphere (CLaMS) for the Arctic winter 2002/2003.
We integrated a Lagrangian denitrification scheme into the
three-dimensional version of CLaMS that calculates the
growth and sedimentation of nitric acid trihydrate (NAT)
particles along individual particle trajectories. From
those, we derive the HNO3 downward flux resulting from
different particle nucleation assumptions. The simulation
results show a clear vertical redistribution of total
inorganic nitrogen (NOy), with a maximum vortex average
permanent NOy removal of over 5 ppb in late December between
500 and 550 K and a corresponding increase of NOy of over 2
ppb below about 450 K. The simulated vertical redistribution
of NOy is compared with balloon observations by MkIV and
in-situ observations from the high altitude aircraft
Geophysica. Assuming a globally uniform NAT particle
nucleation rate of 7.8 x 10(-6) cm(-3) h(-1) in the model,
the observed denitrification is well reproduced.In the
investigated winter 2002/2003, the denitrification has only
moderate impact ( <= $14\%)$ on the simulated vortex average
ozone loss of about 1.1 ppm near the 460 K level. At higher
altitudes, above 600 K potential temperature, the
simulations show significant ozone depletion through
NOx-catalytic cycles due to the unusual early exposure of
vortex air to sunlight.},
keywords = {J (WoSType)},
cin = {ICG-I},
ddc = {550},
cid = {I:(DE-Juel1)VDB47},
pnm = {Chemie und Dynamik der Geo-Biosphäre},
pid = {G:(DE-Juel1)FUEK257},
shelfmark = {Meteorology $\&$ Atmospheric Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000229836300001},
url = {https://juser.fz-juelich.de/record/45972},
}