Cloud drop number concentrations over the western North Atlantic Ocean: seasonal cycle, aerosol interrelationships, and other influential factors

Dadashazar, Hossein; Painemal, David; Alipanah, Majid; Brunke, Michael; Chellappan, Seethala; Corral, Andrea F.; Crosbie, Ewan; Kirschler, Simon; Liu, Hongyu; Moore, Richard H.; Robinson, Claire; Scarino, Amy Jo; Shook, Michael; Sinclair, Kenneth; Thornhill, K. Lee; Voigt, Christiane; Wang, Hailong; Winstead, Edward; Zeng, Xubin; Ziemba, Luke; Zuidema, Paquita; Sorooshian, Armin

doi:https://doi.org/10.5194/acp-21-10499-2021

Articles | Volume 21, issue 13

https://doi.org/10.5194/acp-21-10499-2021

© 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-21-10499-2021

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

Articles | Volume 21, issue 13

Research article

|

13 Jul 2021

Research article |

| 13 Jul 2021

Cloud drop number concentrations over the western North Atlantic Ocean: seasonal cycle, aerosol interrelationships, and other influential factors

Hossein Dadashazar, David Painemal, Majid Alipanah, Michael Brunke, Seethala Chellappan, Andrea F. Corral, Ewan Crosbie, Simon Kirschler, Hongyu Liu, Richard H. Moore, Claire Robinson, Amy Jo Scarino, Michael Shook, Kenneth Sinclair, K. Lee Thornhill, Christiane Voigt, Hailong Wang, Edward Winstead, Xubin Zeng, Luke Ziemba, Paquita Zuidema, and Armin Sorooshian

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Final revised paper (published on 13 Jul 2021)
Supplement to the final revised paper
Preprint (discussion started on 10 Mar 2021)
Supplement to the preprint

Interactive discussion

Status: closed

RC1:
'Comment on acp-2021-153', Anonymous Referee #1, 23 Mar 2021

The comment was uploaded in the form of a supplement: https://acp.copernicus.org/preprints/acp-2021-153/acp-2021-153-RC1-supplement.pdf

Citation: https://doi.org/10.5194/acp-2021-153-RC1
- AC1: 'Comment on acp-2021-153', Hossein Dadashazar, 21 May 2021
  
  We thank the two reviewers for thoughtful suggestions and constructive criticism that have helped us improve our manuscript. Please see the supplement pdf file for author response to both referee comments.
  
  Citation: https://doi.org/10.5194/acp-2021-153-AC1
RC2:
'Comment on acp-2021-153', Anonymous Referee #2, 23 Apr 2021

Please see the PDF for comments.

Citation: https://doi.org/10.5194/acp-2021-153-RC2
- AC1: 'Comment on acp-2021-153', Hossein Dadashazar, 21 May 2021
  
  We thank the two reviewers for thoughtful suggestions and constructive criticism that have helped us improve our manuscript. Please see the supplement pdf file for author response to both referee comments.
  
  Citation: https://doi.org/10.5194/acp-2021-153-AC1
AC1: 'Comment on acp-2021-153', Hossein Dadashazar, 21 May 2021

We thank the two reviewers for thoughtful suggestions and constructive criticism that have helped us improve our manuscript. Please see the supplement pdf file for author response to both referee comments.

Citation: https://doi.org/10.5194/acp-2021-153-AC1

Peer review completion

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

AR by Hossein Dadashazar on behalf of the Authors (21 May 2021) Author's response Author's tracked changes Manuscript

ED: Publish subject to technical corrections (26 May 2021) by Stefania Gilardoni

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by Hossein Dadashazar on behalf of the Authors (29 Jun 2021) Author's adjustment Manuscript

EA: Adjustments approved (02 Jul 2021) by Stefania Gilardoni

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Short summary

This study investigates the seasonal cycle of cloud drop number concentration (Nd) over the western North Atlantic Ocean (WNAO) using multiple datasets. Reasons for the puzzling discrepancy between the seasonal cycles of Nd and aerosol concentration were identified. Results indicate that Nd is highest in winter (when aerosol proxy values are often lowest) due to conditions both linked to cold-air outbreaks and that promote greater droplet activation.