Articles | Volume 23, issue 12
https://doi.org/10.5194/acp-23-6743-2023
https://doi.org/10.5194/acp-23-6743-2023
Research article
 | 
20 Jun 2023
Research article |  | 20 Jun 2023

Change from aerosol-driven to cloud-feedback-driven trend in short-wave radiative flux over the North Atlantic

Daniel P. Grosvenor and Kenneth S. Carslaw

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Cited articles

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Short summary
We determine what causes long-term trends in short-wave (SW) radiative fluxes in two climate models. A positive trend occurs between 1850 and 1970 (increasing SW reflection) and a negative trend between 1970 and 2014; the pre-1970 positive trend is mainly driven by an increase in cloud droplet number concentrations due to increases in aerosol, and the 1970–2014 trend is driven by a decrease in cloud fraction, which we attribute to changes in clouds caused by greenhouse gas-induced warming.
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