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@ARTICLE{Groo:60670,
author = {Grooß, J.-U. and Müller, R. and Konopka, P. and
Steinhorst, H.-M. and Engel, A. and Möbius, T. and Volk, C.
M.},
title = {{T}he impact of transport across the polar vortex edge on
match ozone loss estimates},
journal = {Atmospheric chemistry and physics},
volume = {8},
issn = {1680-7316},
address = {Katlenburg-Lindau},
publisher = {EGU},
reportid = {PreJuSER-60670},
pages = {565 - 578},
year = {2008},
note = {Record converted from VDB: 12.11.2012},
abstract = {The Match method for the quantification of polar chemical
ozone loss is investigated mainly with respect to the impact
of the transport of air masses across the vortex edge. For
the winter 2002/03, we show that significant transport
across the vortex edge occurred and was simulated by the
Chemical Lagrangian Model of the Stratosphere. In-situ
observations of inert tracers and ozone from HAGAR on the
Geophysica aircraft and balloon-borne sondes, and remote
observations from MIPAS on the ENVISAT satellite were
reproduced well by CLaMS. The model even reproduced a small
vortex remnant that remained a distinct feature until June
2003 and was also observed in-situ by a balloon-borne whole
air sampler. We use this CLaMS simulation to quantify the
impact of transport across the vortex edge on ozone loss
estimates from the Match method. We show that a time
integration of the determined vortex average ozone loss
rates, as performed in Match, results in a larger ozone loss
than the polar vortex average ozone loss in CLaMS. The
determination of the Match ozone loss rates is also
influenced by the transport of air across the vortex edge.
We use the model to investigate how the sampling of the
ozone sondes on which Match is based represents the vortex
average ozone loss rate. Both the time integration of ozone
loss and the determination of ozone loss rates for Match are
evaluated using the winter 2002/2003 CLaMS simulation. These
impacts can explain the majority of the differences between
CLaMS and Match column ozone loss. While the investigated
effects somewhat reduce the apparent discrepancy in January
ozone loss rates reported earlier, a distinct discrepancy
between simulations and Match remains. However, its
contribution to the accumulated ozone loss over the winter
is not large.},
keywords = {J (WoSType)},
cin = {ICG-1},
ddc = {550},
cid = {I:(DE-Juel1)VDB790},
pnm = {Atmosphäre und Klima},
pid = {G:(DE-Juel1)FUEK406},
shelfmark = {Meteorology $\&$ Atmospheric Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000253908300010},
doi = {10.5194/acp-8-565-2008},
url = {https://juser.fz-juelich.de/record/60670},
}