Articles | Volume 17, issue 13
https://doi.org/10.5194/acp-17-8343-2017
https://doi.org/10.5194/acp-17-8343-2017
Research article
 | 
10 Jul 2017
Research article |  | 10 Jul 2017

On the limits of Köhler activation theory: how do collision and coalescence affect the activation of aerosols?

Fabian Hoffmann

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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 Fabian Hoffmann on behalf of the Authors (21 Apr 2017)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (10 May 2017) by Corinna Hoose
RR by Shin-ichiro Shima (16 May 2017)
RR by Anonymous Referee #1 (30 May 2017)
ED: Reconsider after minor revisions (Editor review) (05 Jun 2017) by Corinna Hoose
AR by Fabian Hoffmann on behalf of the Authors (08 Jun 2017)  Author's response    Manuscript
ED: Publish as is (13 Jun 2017) by Corinna Hoose
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Short summary
This study analyzes at which aerosol radius the mass growth leading to activation switches from diffusion to collection, marking the limit of traditional Köhler activation theory. It is found that collection becomes increasingly important for aerosols larger than 0.1 µm in dry radius and is responsible for all activations of aerosols larger than 1.0 µm. A novel particle-based cloud modeling approach is applied, in which activation can be represented without parameterizations.
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