Trapping of HCl and oxidised organic trace gases in growing ice at temperatures relevant to cirrus clouds

Kippenberger, Matthias; Schuster, Gerhard; Lelieveld, Jos; Crowley, John N.

doi:https://doi.org/10.5194/acp-19-11939-2019

Articles | Volume 19, issue 18

https://doi.org/10.5194/acp-19-11939-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-19-11939-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 18

Research article

|

25 Sep 2019

Research article |

| 25 Sep 2019

Trapping of HCl and oxidised organic trace gases in growing ice at temperatures relevant to cirrus clouds

Matthias Kippenberger, Gerhard Schuster, Jos Lelieveld, and John N. Crowley

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Final revised paper (published on 25 Sep 2019)
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Preprint (discussion started on 14 Jun 2019)
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Interactive discussion

Status: closed

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

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RC1: 'Review', Anonymous Referee #1, 17 Jul 2019
- AC1: 'Reply to RC1', John N. Crowley, 09 Aug 2019
RC2: 'Quantitative excellence', J. Paul Devlin, 27 Aug 2019
- AC2: 'Reply to RC2', John N. Crowley, 28 Aug 2019

Peer-review completion

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

AR by John N. Crowley on behalf of the Authors (28 Aug 2019) Author's response Manuscript

ED: Publish as is (28 Aug 2019) by Thorsten Bartels-Rausch

AR by John N. Crowley on behalf of the Authors (28 Aug 2019) Author's response Manuscript

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Short summary

We investigated the uptake of several trace gases to growing ice surfaces at temperatures relevant to cirrus clouds. HCl, a strong inorganic acid that ionises at the surface, was efficiently trapped in the growing ice, whereas oxidised organic trace gases, which attach to ice by hydrogen bonding, were not. HCl can be efficiently and rapidly removed from the gas phase in supersaturated ice clouds.