Articles | Volume 20, issue 3
Atmos. Chem. Phys., 20, 1317–1340, 2020
https://doi.org/10.5194/acp-20-1317-2020

Special issue: New observations and related modelling studies of the aerosol–cloud–climate...

Atmos. Chem. Phys., 20, 1317–1340, 2020
https://doi.org/10.5194/acp-20-1317-2020

Research article 05 Feb 2020

Research article | 05 Feb 2020

Diurnal cycle of the semi-direct effect from a persistent absorbing aerosol layer over marine stratocumulus in large-eddy simulations

Ross J. Herbert et al.

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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Ross Herbert on behalf of the Authors (12 Nov 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (21 Dec 2019) by Jérôme Riedi
RR by Anonymous Referee #3 (07 Jan 2020)
ED: Publish as is (08 Jan 2020) by Jérôme Riedi
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Short summary
Marine stratocumulus clouds cover large regions of the ocean and act to cool the climate. We use high-resolution simulations to understand how observed layers of elevated smoke impact stratocumulus via the solar heating that occurs within the smoke layer. We find that the cloud response is strongest for thin, dense layers of smoke close to the cloud. The response rapidly weakens as the cloud-to-smoke gap increases. Generally, the smoke acts to thicken clouds and enhance their cooling effect.
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