Continuous secondary-ice production initiated by updrafts  through the melting layer in mountainous regions

Lauber, Annika; Henneberger, Jan; Mignani, Claudia; Ramelli, Fabiola; Pasquier, Julie T.; Wieder, Jörg; Hervo, Maxime; Lohmann, Ulrike

doi:https://doi.org/10.5194/acp-21-3855-2021

Articles | Volume 21, issue 5

https://doi.org/10.5194/acp-21-3855-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-3855-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 5

Research article

|

15 Mar 2021

Research article |

| 15 Mar 2021

Continuous secondary-ice production initiated by updrafts through the melting layer in mountainous regions

Annika Lauber, Jan Henneberger, Claudia Mignani, Fabiola Ramelli, Julie T. Pasquier, Jörg Wieder, Maxime Hervo, and Ulrike Lohmann

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Final revised paper (published on 15 Mar 2021)
Preprint (discussion started on 13 Oct 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of this article', Andrew Heymsfield, 07 Nov 2020
- AC1: 'Reply on RC1', Annika Lauber, 29 Jan 2021
RC2: 'Review', Alexei Korolev, 12 Nov 2020
- AC2: 'Reply on RC2', Annika Lauber, 29 Jan 2021

Peer-review completion

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

AR by Annika Lauber on behalf of the Authors (29 Jan 2021) Author's response Author's tracked changes Manuscript

ED: Publish as is (02 Feb 2021) by Daniel Knopf

AR by Annika Lauber on behalf of the Authors (11 Feb 2021)

Short summary

An accurate prediction of the ice crystal number concentration (ICNC) is important to determine the radiation budget, lifetime, and precipitation formation of clouds. Even though secondary-ice processes can increase the ICNC by several orders of magnitude, they are poorly constrained and lack a well-founded quantification. During measurements on a mountain slope, a high ICNC of small ice crystals was observed just below 0 °C, attributed to a secondary-ice process and parametrized in this study.