Articles | Volume 20, issue 23
Atmos. Chem. Phys., 20, 15297–15306, 2020
https://doi.org/10.5194/acp-20-15297-2020
Atmos. Chem. Phys., 20, 15297–15306, 2020
https://doi.org/10.5194/acp-20-15297-2020

Research article 09 Dec 2020

Research article | 09 Dec 2020

Sensitivity of warm clouds to large particles in measured marine aerosol size distributions – a theoretical study

Tom Dror et al.

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We used in situ aerosol measurements over the Atlantic, Caribbean, and Pacific to initialize a cloud model and study the impact of aerosol concentration and sizes on warm clouds. We show that high aerosol concentration increases cloud mass and reduces surface rain when giant particles (diameter > 9 µm) are present. The large aerosols changed the timing and magnitude of internal cloud processes and resulted in an enhanced evaporation below cloud base and dramatically reduced surface rain.
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