Articles | Volume 20, issue 24
Atmos. Chem. Phys., 20, 15681–15724, 2020

Special issue: Marine aerosols, trace gases, and clouds over the North Atlantic...

Atmos. Chem. Phys., 20, 15681–15724, 2020

Research article 17 Dec 2020

Research article | 17 Dec 2020

The decomposition of cloud–aerosol forcing in the UK Earth System Model (UKESM1)

Daniel P. Grosvenor and Kenneth S. Carslaw

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Short summary
Particles arising from human activity interact with clouds and affect how much of the Sun's energy is reflected away. Lack of understanding about how to represent this in models leads to large uncertainties in climate predictions. We quantify cloud responses to particles in the latest UK Met Office climate model over the North Atlantic Ocean, showing that, in contrast to suggestions elsewhere, increases in cloud coverage and thickness are important over large areas.
Final-revised paper