Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Atmos. Chem. Phys., 17, 8343-8356, 2017
https://doi.org/10.5194/acp-17-8343-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
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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Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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RC1: 'Referee comment', Anonymous Referee #1, 30 Mar 2017 Printer-friendly Version 
AC1: 'Response to Anonymous Referee #1', Fabian Hoffmann, 21 Apr 2017 Printer-friendly Version Supplement 
 
RC2: 'Referee comment', Shin-ichiro Shima, 14 Apr 2017 Printer-friendly Version Supplement 
AC2: 'Response to Shin-ichiro Shima', Fabian Hoffmann, 21 Apr 2017 Printer-friendly Version Supplement 
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.
This study analyzes at which aerosol radius the mass growth leading to activation switches from...
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