Articles | Volume 23, issue 23
https://doi.org/10.5194/acp-23-15149-2023
https://doi.org/10.5194/acp-23-15149-2023
Research article
 | 
13 Dec 2023
Research article |  | 13 Dec 2023

Comparison of six approaches to predicting droplet activation of surface active aerosol – Part 2: Strong surfactants

Sampo Vepsäläinen, Silvia M. Calderón, and Nønne L. Prisle

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Subject: Aerosols | Research Activity: Atmospheric Modelling and Data Analysis | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Cited articles

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Bzdek, B. R., Power, R. M., Simpson, S. H., Reid, J. P., and Royall, C. P.: Precise, contactless measurements of the surface tension of picolitre aerosol droplets, Chem. Sci., 7, 274–285, https://doi.org/10.1039/C5SC03184B, 2016. a
Bzdek, B. R., Reid, J. P., Malila, J., and Prisle, N. L.: The surface tension of surfactant-containing, finite volume droplets, P. Natl. Acad. Sci. USA, 117, 8335–8343, https://doi.org/10.1073/pnas.1915660117, 2020. a, b, c, d, e, f, g, h, i
Short summary
Atmospheric aerosols act as seeds for cloud formation. Many aerosols contain surface active material that accumulates at the surface of growing droplets. This can affect cloud droplet activation, but the broad significance of the effect and the best way to model it are still debated. We compare predictions of six models to surface activity of strongly surface active aerosol and find significant differences between the models, especially with large fractions of surfactant in the dry particles.
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