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@ARTICLE{Sahu:202038,
author = {Sahu, L. K. and Sheel, Varun and Kajino, M. and Deushi, M.
and Gunthe, Sachin S. and Sinha, P. R. and Sauvage, B. and
Thouret, Valérie and Smit, Herman G.},
title = {{S}easonal and interannual variability of tropospheric
ozone over an urban site in {I}ndia: {A} study based on
{MOZAIC} and {CCM} vertical profiles over {H}yderabad},
journal = {Journal of geophysical research / Atmospheres},
volume = {119},
number = {6},
issn = {2169-897X},
address = {Hoboken, NJ},
publisher = {Wiley},
reportid = {FZJ-2015-04327},
pages = {3615 - 3641},
year = {2014},
abstract = {This study is based on the analysis of Measurement of Ozone
and Water Vapor by Airbus In-Service Aircraft (MOZAIC) data
measured over Hyderabad, India during the years 2006–2008.
Tropospheric profiles of O3 show clear seasonality with high
and low values during the premonsoon and monsoon seasons,
respectively. Analysis of back trajectory and fire count
data indicates major roles for long-range transport and
biomass burning in the seasonal variation of O3. Typically,
lower levels of O3 in the monsoon season were due to the
flow of marine air and negligible regional biomass burning,
while higher levels in other seasons were due to transport
of continental air. In the upper troposphere, relatively low
levels of O3 during the monsoon and postmonsoon seasons were
associated with deep convection. In the free troposphere,
levels of O3 also show year-to-year variability as the
values in the premonsoon of 2006 were higher by about 30
ppbv compared to 2008. The year-to-year variations were
mainly due to transition from El Niño (2006) to La Niña
(2008). The higher and lower levels of O3 were associated
with strong and weak wind shears, respectively. Typically,
vertical variations of O3 were anticorrelated with the lapse
rate profile. The lower O3 levels were observed in the
stable layers, but higher values in the midtroposphere were
caused by long-range transport. In the PBL region, the
mixing ratio of O3 shows strong dependencies on
meteorological parameters. The Chemistry Climate Model
(CCM2) reasonably reproduced the observed profiles of O3
except for the premonsoon season.},
cin = {IEK-8},
ddc = {550},
cid = {I:(DE-Juel1)IEK-8-20101013},
pnm = {233 - Trace gas and aerosol processes in the troposphere
(POF2-233)},
pid = {G:(DE-HGF)POF2-233},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000336046600053},
doi = {10.1002/2013JD021215},
url = {https://juser.fz-juelich.de/record/202038},
}