Articles | Volume 9, issue 1
Model description paper
19 Jan 2016
Model description paper |  | 19 Jan 2016

Prediction of cloud condensation nuclei activity for organic compounds using functional group contribution methods

M. D. Petters, S. M. Kreidenweis, and P. J. Ziemann

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Cited articles

Amundson, N. R., Caboussat, A., He, J. W., and Seinfeld, J. H.: An optimization problem related to the modeling of atmospheric organic aerosols, C. R. Acad. Sci. Paris Ser. I, 340, 765–768,, 2005.
Amundson, N. R., Caboussat, A., He, J. W., Martynenko, A. V., Landry, C., Tong, C., and Seinfeld, J. H.: A new atmospheric aerosol phase equilibrium model (UHAERO): organic systems, Atmos. Chem. Phys., 7, 4675–4698,, 2007.
Andreae, M. O. and Rosenfeld, D.: Aerosol–cloud–precipitation interactions, Part 1. The nature and sources of cloud-active aerosols, Earth-Sci. Rev., 89, 13–41,, 2008.
Barley, M. H., Topping, D. O., and McFiggans, G.: The critical assessment of liquid density estimation methods for multifunctional organic compounds, J. Phys. Chem. A, 117, 3428–3441,, 2013.
Bilde, M. and Svenningsson, B.: CCN activation of slightly soluble organics: The importance of small amounts of inorganic salt and particle phase, Tellus, 56B, 128–134,, 2004
Short summary
Organic particles suspended in air serve as nucleation seeds for droplets in atmospheric clouds. Over time their chemical composition changes towards more functionalized compounds. This work presents a model that can predict an organic compounds' ability promote the nucleation of cloud drops from its functional group composition. Hydroxyl, carboxyl, aldehyde, hydroperoxide, carbonyl, and ether moieties promote droplet nucleation. Methylene and nitrate moieties inhibit droplet nucleation.