Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA

Allan, J. D.; Williams, P. I.; Najera, J.; Whitehead, J. D.; Flynn, M. J.; Taylor, J. W.; Liu, D.; Darbyshire, E.; Carpenter, L. J.; Chance, R.; Andrews, S. J.; Hackenberg, S. C.; McFiggans, G.

doi:https://doi.org/10.5194/acp-15-5599-2015

Articles | Volume 15, issue 10

https://doi.org/10.5194/acp-15-5599-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Aerosol-Cloud Coupling And Climate Interactions in the Arctic...

https://doi.org/10.5194/acp-15-5599-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 10

Research article

|

21 May 2015

Research article |

| 21 May 2015

Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA

J. D. Allan, P. I. Williams, J. Najera, J. D. Whitehead, M. J. Flynn, J. W. Taylor, D. Liu, E. Darbyshire, L. J. Carpenter, R. Chance, S. J. Andrews, S. C. Hackenberg, and G. McFiggans

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Interactive discussion

Status: closed

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

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SC C9791: 'iodine - sea ice algae', Russell Saunders, 04 Dec 2014
- AC C12591: 'Reply to R Saunders', James Allan, 13 Mar 2015
RC C9870: 'Review of Allan et al.; great paper, more discussion of hygroscopicity data needed', Anonymous Referee #1, 08 Dec 2014
- AC C12593: 'Response to review 1', James Allan, 13 Mar 2015
RC C11108: 'Review report of ACPD manuscript: J.D.Allan et al. ”Iodine observed in new particle formation events in the Arctic atmosphere during ACCACIA” ACPD, 14, 28949–28972, 2014', Anonymous Referee #2, 12 Jan 2015
- AC C12595: 'Response to review 2', James Allan, 13 Mar 2015

Peer-review completion

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

AR by James Allan on behalf of the Authors (17 Mar 2015) Author's response Manuscript

ED: Publish subject to technical corrections (30 Apr 2015) by William Thomas Sturges

AR by James Allan on behalf of the Authors (30 Apr 2015) Manuscript

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Short summary

New particle formation (NPF) is an important contributor to aerosol number concentrations in the Arctic and thus has a major role in dictating cloud properties and climate in this region. Here we present direct evidence that the oxidation of iodine in the atmosphere causes NPF in the Greenland Sea. This is important because this is a NPF mechanism that has not previously been considered in modelling studies at these latitudes.