TY  - JOUR
AU  - Klingmüller, Klaus
AU  - Karydis, Vlassis A.
AU  - Bacer, Sara
AU  - Stenchikov, Georgiy L.
AU  - Lelieveld, Jos
TI  - Weaker cooling by aerosols due to dust–pollution interactions
JO  - Atmospheric chemistry and physics
VL  - 20
IS  - 23
SN  - 1680-7324
CY  - Katlenburg-Lindau
PB  - EGU
M1  - FZJ-2021-01760
SP  - 15285 - 15295
PY  - 2020
AB  - The interactions between aeolian dust and anthropogenic air pollution, notably chemical ageing of mineral dust and coagulation of dust and pollution particles, modify the atmospheric aerosol composition and burden. Since the aerosol particles can act as cloud condensation nuclei, this affects the radiative transfer not only directly via aerosol–radiation interactions, but also indirectly through cloud adjustments. We study both radiative effects using the global ECHAM/MESSy atmospheric chemistry-climate model (EMAC) which combines the Modular Earth Submodel System (MESSy) with the European Centre/Hamburg (ECHAM) climate model. Our simulations show that dust–pollution–cloud interactions reduce the condensed water path and hence the reflection of solar radiation. The associated climate warming outweighs the cooling that the dust–pollution interactions exert through the direct radiative effect. In total, this results in a net warming by dust–pollution interactions which moderates the negative global anthropogenic aerosol forcing at the top of the atmosphere by (0.2 ± 0.1) W m−2.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000599336000001
DO  - DOI:10.5194/acp-20-15285-2020
UR  - https://juser.fz-juelich.de/record/891837
ER  -