Ice-nucleating particles in Canadian Arctic sea-surface microlayer and bulk seawater

Irish, Victoria E.; Elizondo, Pablo; Chen, Jessie; Chou, Cédric; Charette, Joannie; Lizotte, Martine; Ladino, Luis A.; Wilson, Theodore W.; Gosselin, Michel; Murray, Benjamin J.; Polishchuk, Elena; Abbatt, Jonathan P. D.; Miller, Lisa A.; Bertram, Allan K.

doi:https://doi.org/10.5194/acp-17-10583-2017

Articles | Volume 17, issue 17

https://doi.org/10.5194/acp-17-10583-2017

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

Special issue:

NETCARE (Network on Aerosols and Climate: Addressing Key Uncertainties...

https://doi.org/10.5194/acp-17-10583-2017

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

Articles | Volume 17, issue 17

Research article

|

08 Sep 2017

Research article |

| 08 Sep 2017

Ice-nucleating particles in Canadian Arctic sea-surface microlayer and bulk seawater

Victoria E. Irish, Pablo Elizondo, Jessie Chen, Cédric Chou, Joannie Charette, Martine Lizotte, Luis A. Ladino, Theodore W. Wilson, Michel Gosselin, Benjamin J. Murray, Elena Polishchuk, Jonathan P. D. Abbatt, Lisa A. Miller, and Allan K. Bertram

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Final revised paper (published on 08 Sep 2017)
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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: 'Irish et al. Referee Comments', Anonymous Referee #1, 27 May 2017
RC2: 'Referee Comment', Anonymous Referee #2, 02 Jun 2017
AC1: 'Response to both referees', V. E. Irish, 24 Jul 2017

Peer-review completion

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

AR by V. E. Irish on behalf of the Authors (27 Jul 2017) Author's response Manuscript

ED: Publish as is (07 Aug 2017) by Daniel J. Cziczo

AR by V. E. Irish on behalf of the Authors (08 Aug 2017) Manuscript

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Short summary

The ocean is a possible source of atmospheric ice-nucleating particles (INPs). In this study we found that INPs were ubiquitous in the sea-surface microlayer and bulk seawater in the Canadian Arctic. A strong negative correlation was observed between salinity and freezing temperatures (after correcting for freezing point depression). Heat and filtration treatments of the samples showed that the INPs were likely biological material with sizes between 0.02 μm and 0.2 μm in diameter.