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@ARTICLE{Stadtler:844862,
author = {Stadtler, Scarlet and Simpson, David and Schröder, Sabine
and Taraborrelli, Domenico and Bott, Andreas and Schultz,
Martin},
title = {{O}zone impacts of gas–aerosol uptake in global chemistry
transport models},
journal = {Atmospheric chemistry and physics},
volume = {18},
number = {5},
issn = {1680-7324},
address = {Katlenburg-Lindau},
publisher = {EGU},
reportid = {FZJ-2018-02213},
pages = {3147 - 3171},
year = {2018},
note = {enthält Publikationsgebühren},
abstract = {The impact of six heterogeneous gas–aerosol up-take
reactions on tropospheric ozone and nitrogen specieswas
studied using two chemical transport models, the
Mete-orological Synthesizing Centre-West of the European
Moni-toring and Evaluation Programme (EMEP MSC-W) and
theEuropean Centre Hamburg general circulation model
com-bined with versions of the Hamburg Aerosol Model
andModel for Ozone and Related chemical Tracers
(ECHAM-HAMMOZ). Species undergoing heterogeneous reactions
inboth models include N2O5, NO3, NO2, O3, HNO3, and
HO2.Since heterogeneous reactions take place at the aerosol
sur-face area, the modelled surface area density (Sa) of
both mod-els was compared to a satellite product retrieving
the surfacearea. This comparison shows a good agreement in
global pat-tern and especially the capability of both models
to capturethe extreme aerosol loadings in east Asia.The
impact of the heterogeneous reactions was evaluatedby the
simulation of a reference run containing all hetero-geneous
reactions and several sensitivity runs. One reactionwas
turned off in each sensitivity run to compare it withthe
reference run. The analysis of the sensitivity runs
con-firms that the globally most important heterogeneous
reac-tion is the one of N2O5. Nevertheless, NO2, HNO3,
andHO2heterogeneous reactions gain relevance particularly
ineast Asia due to the presence of high NOxconcentrationsand
highSain the same region. The heterogeneous reactionof
O3itself on dust is of minor relevance compared to theother
heterogeneous reactions. The impacts of the N2O5re-actions
show strong seasonal variations, with the biggest im-pacts
on O3in springtime when photochemical reactions areactive
and N2O5levels still high. Evaluation of the modelswith
northern hemispheric ozone surface observations yieldsa
better agreement of the models with observations in termsof
concentration levels, variability, and temporal
correlationsat most sites when the heterogeneous reactions
are incorpo-rated. Our results are loosely consistent with
results from ear-lier studies, although the magnitude of
changes induced byN2O5reaction is at the low end of
estimates, which seems tofit a trend, whereby the more
recent the study the lower theimpacts of these reactions},
cin = {IEK-8 / JSC / JARA-HPC},
ddc = {550},
cid = {I:(DE-Juel1)IEK-8-20101013 / I:(DE-Juel1)JSC-20090406 /
$I:(DE-82)080012_20140620$},
pnm = {243 - Tropospheric trace substances and their
transformation processes (POF3-243) / Chemical processes in
the troposphere and their impact on climate
$(jicg23_20151101)$ / Earth System Data Exploration (ESDE)},
pid = {G:(DE-HGF)POF3-243 / $G:(DE-Juel1)jicg23_20151101$ /
G:(DE-Juel-1)ESDE},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000426721800001},
doi = {10.5194/acp-18-3147-2018},
url = {https://juser.fz-juelich.de/record/844862},
}