Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region

Croft, Betty; Martin, Randall V.; Moore, Richard H.; Ziemba, Luke D.; Crosbie, Ewan C.; Liu, Hongyu; Russell, Lynn M.; Saliba, Georges; Wisthaler, Armin; Müller, Markus; Schiller, Arne; Galí, Martí; Chang, Rachel Y.-W.; McDuffie, Erin E.; Bilsback, Kelsey R.; Pierce, Jeffrey R.

doi:https://doi.org/10.5194/acp-21-1889-2021

Articles | Volume 21, issue 3

https://doi.org/10.5194/acp-21-1889-2021

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

Special issue:

Marine aerosols, trace gases, and clouds over the North Atlantic...

https://doi.org/10.5194/acp-21-1889-2021

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

Articles | Volume 21, issue 3

Research article

|

10 Feb 2021

Research article |

| 10 Feb 2021

Factors controlling marine aerosol size distributions and their climate effects over the northwest Atlantic Ocean region

Betty Croft, Randall V. Martin, Richard H. Moore, Luke D. Ziemba, Ewan C. Crosbie, Hongyu Liu, Lynn M. Russell, Georges Saliba, Armin Wisthaler, Markus Müller, Arne Schiller, Martí Galí, Rachel Y.-W. Chang, Erin E. McDuffie, Kelsey R. Bilsback, and Jeffrey R. Pierce

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Final revised paper (published on 10 Feb 2021)
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Preprint (discussion started on 07 Aug 2020)
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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 of Croft et al.', Anonymous Referee #1, 23 Sep 2020
RC2: 'Review of Croft et al.', Anonymous Referee #2, 08 Oct 2020
AC1: 'Response to the two referees' comments', Betty Croft, 17 Dec 2020

Peer-review completion

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

AR by Betty Croft on behalf of the Authors (17 Dec 2020) Author's response Manuscript

ED: Publish as is (22 Dec 2020) by Veli-Matti Kerminen

AR by Betty Croft on behalf of the Authors (22 Dec 2020) Manuscript

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Short summary

North Atlantic Aerosols and Marine Ecosystems Study measurements combined with GEOS-Chem-TOMAS modeling suggest that several not-well-understood key factors control northwest Atlantic aerosol number and size. These synergetic and climate-relevant factors include particle formation near and above the marine boundary layer top, particle growth by marine secondary organic aerosol on descent, particle formation/growth related to dimethyl sulfide, sea spray aerosol, and ship emissions.