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@ARTICLE{Klingmller:866831,
author = {Klingmüller, Klaus and Lelieveld, Jos and Karydis, Vlassis
A. and Stenchikov, Georgiy L.},
title = {{D}irect radiative effect of dust–pollution interactions},
journal = {Atmospheric chemistry and physics},
volume = {19},
number = {11},
issn = {1680-7324},
address = {Katlenburg-Lindau},
publisher = {EGU},
reportid = {FZJ-2019-05894},
pages = {7397 - 7408},
year = {2019},
abstract = {The chemical ageing of aeolian dust, through interactions
with air pollution, affects the optical and hygroscopic
properties of the mineral particles and hence their
atmospheric residence time and climate forcing. Conversely,
the chemical composition of the dust particles and their
role as coagulation partners impact the abundance of
particulate air pollution. This results in a change in the
aerosol direct radiative effect that we interpret as an
anthropogenic radiative forcing associated with mineral
dust–pollution interactions. Using the ECHAM/MESSy
atmospheric chemistry climate model (EMAC), which combines
the Modular Earth Submodel System (MESSy) with the European
Centre Hamburg (ECHAM) climate model, including a detailed
parametrisation of ageing processes and an emission scheme
accounting for the chemical composition of desert soils, we
study the direct radiative forcing globally and regionally,
considering solar and terrestrial radiation. Our results
indicate positive and negative forcings, depending on the
region. The predominantly negative forcing at the top of the
atmosphere over large parts of the dust belt, from West
Africa to East Asia, attains a maximum of about
−2 W m−2 south of the Sahel, in contrast to a
positive forcing over India. Globally averaged, these
forcings partially counterbalance, resulting in a net
negative forcing of −0.05 W m−2, which nevertheless
represents a considerable fraction $(40 \%)$ of the total
dust forcing.},
cin = {IEK-8},
ddc = {550},
cid = {I:(DE-Juel1)IEK-8-20101013},
pnm = {243 - Tropospheric trace substances and their
transformation processes (POF3-243)},
pid = {G:(DE-HGF)POF3-243},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000470323500006},
doi = {10.5194/acp-19-7397-2019},
url = {https://juser.fz-juelich.de/record/866831},
}