Concentration and variability of ice nuclei in the subtropical maritime boundary layer

Welti, André; Müller, Konrad; Fleming, Zoë L.; Stratmann, Frank

doi:https://doi.org/10.5194/acp-18-5307-2018

Articles | Volume 18, issue 8

https://doi.org/10.5194/acp-18-5307-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

BACCHUS – Impact of Biogenic versus Anthropogenic emissions...

https://doi.org/10.5194/acp-18-5307-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 8

Research article

|

19 Apr 2018

Research article |

| 19 Apr 2018

Concentration and variability of ice nuclei in the subtropical maritime boundary layer

André Welti, Konrad Müller, Zoë L. Fleming, and Frank Stratmann

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Final revised paper (published on 19 Apr 2018)
Preprint (discussion started on 30 Aug 2017)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review', Keith Bigg, 04 Sep 2017
- AC1: 'Response to the Comments of Keith Bigg (Reviewer 1)', André Welti, 18 Dec 2017
RC2: 'Review', Anonymous Referee #2, 06 Nov 2017
- AC2: 'Response to the Comments of Reviewer 2', André Welti, 18 Dec 2017
AC3: 'Trackchanges revised version of the manuscript', André Welti, 18 Dec 2017

Peer-review completion

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

AR by André Welti on behalf of the Authors (10 Jan 2018) Author's response Manuscript

ED: Referee Nomination & Report Request started (14 Jan 2018) by Allan Bertram

ED: Publish subject to minor revisions (review by editor) (12 Feb 2018) by Allan Bertram

AR by André Welti on behalf of the Authors (19 Feb 2018) Author's response Manuscript

ED: Publish as is (21 Feb 2018) by Allan Bertram

Short summary

We report on ambient concentrations of ice nuclei, measured on the Cabo Verde islands. Concentrations are found to exponentially increase by 7 orders of magnitude from −5 to −38 °C. At each temperature, the frequency distribution of observed concentrations can be described by a lognormal distribution, typical for random dilution of substances during transport. Random dilution is found to account for larger fluctuations in IN concentration than seasonal changes and changes in air mass origin.