Chemical characterization of atmospheric ions at the high altitude research station Jungfraujoch (Switzerland)

Frege, Carla; Bianchi, Federico; Molteni, Ugo; Tröstl, Jasmin; Junninen, Heikki; Henne, Stephan; Sipilä, Mikko; Herrmann, Erik; Rossi, Michel J.; Kulmala, Markku; Hoyle, Christopher R.; Baltensperger, Urs; Dommen, Josef

doi:https://doi.org/10.5194/acp-17-2613-2017

Articles | Volume 17, issue 4

https://doi.org/10.5194/acp-17-2613-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-2613-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 4

Research article

|

21 Feb 2017

Research article |

| 21 Feb 2017

Chemical characterization of atmospheric ions at the high altitude research station Jungfraujoch (Switzerland)

Carla Frege, Federico Bianchi, Ugo Molteni, Jasmin Tröstl, Heikki Junninen, Stephan Henne, Mikko Sipilä, Erik Herrmann, Michel J. Rossi, Markku Kulmala, Christopher R. Hoyle, Urs Baltensperger, and Josef Dommen

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Final revised paper (published on 21 Feb 2017)
Supplement to the final revised paper
Preprint (discussion started on 07 Sep 2016)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review for Frege et al.', Anonymous Referee #1, 26 Sep 2016
- AC1: 'Answers to Referee 1', Carla Frege, 01 Dec 2016
RC2: 'comment on "Chemical characterization of atmospheric ions at the High Altitude Research Station Jungfraujoch (Switzerland)"', Anonymous Referee #3, 03 Oct 2016
- AC2: 'Answers to Referee 2', Carla Frege, 01 Dec 2016
RC3: 'Review of Frege et al.', Anonymous Referee #2, 13 Oct 2016
- AC3: 'Answers to Referee 3', Carla Frege, 01 Dec 2016
AC4: 'Revised Manuscript', Carla Frege, 01 Dec 2016

Peer-review completion

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

AR by Anna Wenzel on behalf of the Authors (05 Dec 2016) Author's response

ED: Referee Nomination & Report Request started (13 Dec 2016) by Alexander Laskin

RR by Anonymous Referee #2 (20 Dec 2016)

ED: Publish as is (20 Dec 2016) by Alexander Laskin

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Short summary

We present measurements of the chemical composition of atmospheric ions at high altitude (3450 m a.s.l.) during a 9-month campaign. We detected remarkably high correlation between methanesulfonic acid (MSA) and SO₅⁻. Halogenated species were also detected frequently at this continental location. New-particle formation events occurred via the condensation of highly oxygenated molecules (HOMs) at very low sulfuric acid concentration or, less frequently, due to ammonia–sulfuric acid clusters.