Chemical and physical influences on aerosol activation in liquid clouds: a study based on observations from the Jungfraujoch, Switzerland

Hoyle, Christopher R.; Webster, Clare S.; Rieder, Harald E.; Nenes, Athanasios; Hammer, Emanuel; Herrmann, Erik; Gysel, Martin; Bukowiecki, Nicolas; Weingartner, Ernest; Steinbacher, Martin; Baltensperger, Urs

doi:https://doi.org/10.5194/acp-16-4043-2016

Articles | Volume 16, issue 6

https://doi.org/10.5194/acp-16-4043-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

BACCHUS – Impact of Biogenic versus Anthropogenic emissions...

https://doi.org/10.5194/acp-16-4043-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 6

Research article

|

29 Mar 2016

Research article |

| 29 Mar 2016

Chemical and physical influences on aerosol activation in liquid clouds: a study based on observations from the Jungfraujoch, Switzerland

Christopher R. Hoyle, Clare S. Webster, Harald E. Rieder, Athanasios Nenes, Emanuel Hammer, Erik Herrmann, Martin Gysel, Nicolas Bukowiecki, Ernest Weingartner, Martin Steinbacher, and Urs Baltensperger

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Final revised paper (published on 29 Mar 2016)
Preprint (discussion started on 09 Jun 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C4150: 'Review to "Chemical and physical influences on aerosol activation in liquid clouds: an empirical study based on observations from the Jungfraujoch, Switzerland" by Hoyle et al.', Anonymous Referee #1, 30 Jun 2015
- AC C13126: 'Reply to reviewer 1', Christopher Hoyle, 11 Mar 2016
RC C4428: 'Manuscript review', Anonymous Referee #2, 07 Jul 2015
- AC C13127: 'Reply to reviewer 2', Christopher Hoyle, 11 Mar 2016

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Christopher Hoyle on behalf of the Authors (11 Mar 2016) Author's response Manuscript

ED: Publish as is (14 Mar 2016) by Veli-Matti Kerminen

AR by Christopher Hoyle on behalf of the Authors (14 Mar 2016)

Short summary

A simple statistical model to predict the number of aerosols which activate to form cloud droplets in warm clouds has been established, based on regression analysis of data from the high-altitude site Jungfraujoch. It is found that cloud droplet formation at the Jungfraujoch is predominantly controlled by the number concentration of aerosol particles. A statistical model based on only the number of particles larger than 80nm can explain 79 % of the observed variance in droplet numbers.