Heterogeneous ice nucleation of viscous secondary organic aerosol produced from ozonolysis of <i>α</i>-pinene

Ignatius, Karoliina; Kristensen, Thomas B.; Järvinen, Emma; Nichman, Leonid; Fuchs, Claudia; Gordon, Hamish; Herenz, Paul; Hoyle, Christopher R.; Duplissy, Jonathan; Garimella, Sarvesh; Dias, Antonio; Frege, Carla; Höppel, Niko; Tröstl, Jasmin; Wagner, Robert; Yan, Chao; Amorim, Antonio; Baltensperger, Urs; Curtius, Joachim; Donahue, Neil M.; Gallagher, Martin W.; Kirkby, Jasper; Kulmala, Markku; Möhler, Ottmar; Saathoff, Harald; Schnaiter, Martin; Tomé, Antonio; Virtanen, Annele; Worsnop, Douglas; Stratmann, Frank

doi:https://doi.org/10.5194/acp-16-6495-2016

Articles | Volume 16, issue 10

https://doi.org/10.5194/acp-16-6495-2016

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

Special issue:

The CERN CLOUD experiment (ACP/AMT inter-journal SI)

https://doi.org/10.5194/acp-16-6495-2016

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

Articles | Volume 16, issue 10

Research article

|

27 May 2016

Research article |

| 27 May 2016

Heterogeneous ice nucleation of viscous secondary organic aerosol produced from ozonolysis of α-pinene

Karoliina Ignatius, Thomas B. Kristensen, Emma Järvinen, Leonid Nichman, Claudia Fuchs, Hamish Gordon, Paul Herenz, Christopher R. Hoyle, Jonathan Duplissy, Sarvesh Garimella, Antonio Dias, Carla Frege, Niko Höppel, Jasmin Tröstl, Robert Wagner, Chao Yan, Antonio Amorim, Urs Baltensperger, Joachim Curtius, Neil M. Donahue, Martin W. Gallagher, Jasper Kirkby, Markku Kulmala, Ottmar Möhler, Harald Saathoff, Martin Schnaiter, Antonio Tomé, Annele Virtanen, Douglas Worsnop, and Frank Stratmann

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Final revised paper (published on 27 May 2016)
Supplement to the final revised paper
Preprint (discussion started on 18 Dec 2015)

Interactive discussion

Status: closed

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

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- Supplement

SC C11740: 'Time scale of semi-solid to liquid transition at high humidities', Ulrich Krieger, 19 Jan 2016
- AC C13475: 'Response to Short comment by Ulrich Krieger', Karoliina Ignatius, 15 Apr 2016
RC C11963: 'Comments on Ignatius et al.', Anonymous Referee #1, 25 Jan 2016
- AC C13476: 'Response to anonymous referee #1', Karoliina Ignatius, 15 Apr 2016
RC C12025: 'Comments on Ignatius et al.,', Anonymous Referee #2, 27 Jan 2016
- AC C13477: 'Response to anonymous referee #2', Karoliina Ignatius, 15 Apr 2016
AC C13478: 'Final author's response', Karoliina Ignatius, 15 Apr 2016

Peer-review completion

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

AR by Karoliina Ignatius on behalf of the Authors (16 Apr 2016) Author's response

ED: Referee Nomination & Report Request started (19 Apr 2016) by Hinrich Grothe

RR by Anonymous Referee #2 (02 May 2016)

RR by Anonymous Referee #1 (09 May 2016)

ED: Publish subject to technical corrections (09 May 2016) by Hinrich Grothe

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Short summary

Viscous solid or semi-solid secondary organic aerosol (SOA) may influence cloud properties through ice nucleation in the atmosphere. Here, we observed heterogeneous ice nucleation of viscous α-pinene SOA at temperatures between −39 °C and −37.2 °C with ice saturation ratios significantly below the homogeneous freezing limit. Global modelling suggests that viscous biogenic SOA are present in regions where cirrus formation takes place and could contribute to the global ice nuclei budget.