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@ARTICLE{Aghedo:55973,
author = {Aghedo, A. M. and Schultz, M. G. and Rast, S.},
title = {{T}he influence of {A}frican air pollution on regional and
global tropospheric ozone},
journal = {Atmospheric chemistry and physics},
volume = {7},
issn = {1680-7316},
address = {Katlenburg-Lindau},
publisher = {EGU},
reportid = {PreJuSER-55973},
pages = {1193 - 1212},
year = {2007},
note = {Record converted from VDB: 12.11.2012},
abstract = {We investigate the influence of African biomass burning,
biogenic, lightning and anthropogenic emissions on the
tropospheric ozone over Africa and globally using a coupled
global chemistry climate model. Our model studies indicate
that surface ozone concentration may rise by up to 50 ppbv
in the burning region during the biomass burning seasons.
Biogenic emissions yield between 5-30 ppbv increase in the
near surface ozone concentration over tropical Africa. The
impact of lightning on surface ozone is negligible, while
anthropogenic emissions yield a maximum of 7 ppbv increase
in the annual-mean surface ozone concentration over Nigeria,
South Africa and Egypt. Our results show that biogenic
emissions are the most important African emission source
affecting total tropospheric ozone. The influence of each of
the African emissions on the global tropospheric ozone
burden (TOB) of 384 Tg yields about 9.5 Tg, 19.6 Tg, 9.0 Tg
and 4.7 Tg for biomass burning, biogenic, lightning and
anthropogenic emissions emitted in Africa respectively. The
impact of each of these emission categories on African TOB
of 33 Tg is 2.5 Tg, 4.1 Tg, 1.75 Tg and 0.89 Tg
respectively, which together represents about $28\%$ of the
total TOB calculated over Africa. Our model calculations
also suggest that more than $70\%$ of the tropospheric ozone
produced by each of the African emissions is found outside
the continent, thus exerting a noticeable influence on a
large part of the tropical troposphere. Apart from the
Atlantic and Indian Ocean, Latin America experiences the
largest impact of African emissions, followed by Oceania,
the Middle East, Southeast and south-central Asia, northern
North America (i.e. the United States and Canada), Europe
and north-central Asia, for all the emission categories.},
keywords = {J (WoSType)},
cin = {ICG-2},
ddc = {550},
cid = {I:(DE-Juel1)VDB791},
pnm = {Atmosphäre und Klima},
pid = {G:(DE-Juel1)FUEK406},
shelfmark = {Meteorology $\&$ Atmospheric Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000244396800004},
doi = {10.5194/acp-7-1193-2007},
url = {https://juser.fz-juelich.de/record/55973},
}