Articles | Volume 17, issue 8
https://doi.org/10.5194/acp-17-5155-2017
https://doi.org/10.5194/acp-17-5155-2017
Research article
 | 
20 Apr 2017
Research article |  | 20 Apr 2017

The relative importance of macrophysical and cloud albedo changes for aerosol-induced radiative effects in closed-cell stratocumulus: insight from the modelling of a case study

Daniel P. Grosvenor, Paul R. Field, Adrian A. Hill, and Benjamin J. Shipway

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We used a weather model to simulate low-level layer clouds that lie off the coast of Chile and tested how they would be affected by airborne particulate matter (aerosols) according to the model. We found that as aerosols were increased, the clouds reflected more and more of the sun’s incoming energy due to the combined effects of the cloud droplets becoming smaller, the thickening of clouds, and increased areal coverage. However, the latter two effects were only important at low aerosol levels.
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