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@ARTICLE{Khosrawi:50056,
author = {Khosrawi, F. and Müller, R. and Proffitt, M. H. and
Nakajima, H.},
title = {{M}onthly averages of nitrous oxide and ozone for the
{N}orthern and {S}outhern {H}emisphere high latitudes: {A}
"one-year climatology" derived from {ILAS}/{ILAS}-{II}
observations},
journal = {Journal of Geophysical Research},
volume = {111},
issn = {0148-0227},
address = {Washington, DC},
publisher = {Union},
reportid = {PreJuSER-50056},
pages = {D11S11},
year = {2006},
note = {Record converted from VDB: 12.11.2012},
abstract = {[1] Correlations of ozone (O-3) and nitrous oxide (N2O)
have been suggested as a tool for validating photochemical
models and as a reference for estimating high-latitude ozone
loss. However, so far no analysis of ozone-tracer relations
is available that provides a good temporal coverage during
all months. Here we combine measurements from the Improved
Limb Atmospheric Spectrometers (ILAS/ILAS-II) to derive an
O-3/N2O climatology for the high-latitude regions in the
Northern and Southern Hemisphere for each month of the year,
thus providing a complete seasonal cycle. ILAS and ILAS-II
operated on board the Advanced Earth Observing Satellite
(ADEOS/ADEOS-II), and both instruments use the solar
occultation technique. ILAS operated for 8 months in 1996/
1997, and ILAS-II operated for 7 months in 2003. The ILAS-II
measurements cover the months that are not available from
ILAS. The ILAS/ILAS-II correlations of ozone versus nitrous
oxide are organized monthly in both hemispheres by
partitioning these data into equal bins of altitude or
potential temperature. The resulting families of curves
allow separation of ozone changes due to photochemistry from
those due to transport. The combined ILAS/ILAS-II data set
corroborates earlier findings that the families of O-3/N2O
curves are separated and generally do not cross and further
that the separation is much clearer for the potential
temperature binning than for the altitude binning. The much
clearer separation for the potential temperature binning is
due to transport being predominantly isentropic. Thus these
curves are particularly suitable for the validation of
photochemical models. The seasonal cycle of O-3/N2O
distributions in the Northern and Southern Hemisphere high
latitudes is found to be rather different. In the Southern
Hemisphere, O-3/N2O distributions are influenced by the
strong chemical ozone loss in the Antarctic vortex and by a
much longer duration of the polar vortex. In the Northern
Hemisphere, diabatic descent is much more pronounced. Solely
during the setup phase of the polar vortex the N2O/O-3
distributions in the two hemispheres are rather similar.},
keywords = {J (WoSType)},
cin = {ICG-I},
ddc = {550},
cid = {I:(DE-Juel1)VDB47},
pnm = {Atmosphäre und Klima},
pid = {G:(DE-Juel1)FUEK406},
shelfmark = {Meteorology $\&$ Atmospheric Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000238219300002},
doi = {10.1029/2005JD006384},
url = {https://juser.fz-juelich.de/record/50056},
}