Articles | Volume 23, issue 10
Research article
22 May 2023
Research article |  | 22 May 2023

A seasonal analysis of aerosol NO3 sources and NOx oxidation pathways in the Southern Ocean marine boundary layer

Jessica M. Burger, Emily Joyce, Meredith G. Hastings, Kurt A. M. Spence, and Katye E. Altieri


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2022-704', Anonymous Referee #1, 12 Jan 2023
    • AC1: 'Reply on RC1', Jessica Burger, 20 Mar 2023
  • RC2: 'Comment on acp-2022-704', Anonymous Referee #2, 07 Feb 2023
    • AC2: 'Reply on RC2', Jessica Burger, 20 Mar 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Jessica Burger on behalf of the Authors (20 Mar 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (21 Mar 2023) by Eliza Harris
AR by Jessica Burger on behalf of the Authors (14 Apr 2023)

Post-review adjustments

AA: Author's adjustment | EA: Editor approval
AA by Jessica Burger on behalf of the Authors (11 May 2023)   Author's adjustment   Manuscript
EA: Adjustments approved (12 May 2023) by Eliza Harris
Short summary
A seasonal analysis of the nitrogen isotopes of atmospheric nitrate over the remote Southern Ocean reveals that similar natural NOx sources dominate in spring and summer, while winter is representative of background-level conditions. The oxygen isotopes suggest that similar oxidation pathways involving more ozone occur in spring and winter, while the hydroxyl radical is the main oxidant in summer. This work helps to constrain NOx cycling and oxidant budgets in a data-sparse remote marine region.
Final-revised paper