Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 15
Articles | Volume 26, issue 15
https://doi.org/10.5194/acp-26-11309-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-11309-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 15
Research article
 | 
12 Aug 2026
Research article |  | 12 Aug 2026

Introducing aerosol-cloud interactions in the ECMWF model reveals new constraints on aerosol representation

Paolo Andreozzi, Mark D. Fielding, Robin J. Hogan, Richard M. Forbes, Adrian A. Hill, Samuel Rémy, Birger Bohn, and Ulrich Löhnert

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Short summary
Aerosols significantly contribute to the Earth’s climate, but models still struggle to represent them. Here we use satellite observations of clouds to constrain aerosol processes in a weather and air-quality model. We show that African wildfires lead to overly bright simulated clouds and that the model removes too much aerosol in mixed-phase clouds. This demonstrates how cloud observations can target weakly constrained aerosol processes, with potential benefits for weather and climate modelling.
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