Articles | Volume 23, issue 9
Research article
17 May 2023
Research article |  | 17 May 2023

Snowpack nitrate photolysis drives the summertime atmospheric nitrous acid (HONO) budget in coastal Antarctica

Amelia M. H. Bond, Markus M. Frey, Jan Kaiser, Jörg Kleffmann, Anna E. Jones, and Freya A. Squires


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2022-845', Anonymous Referee #1, 17 Feb 2023
  • RC2: 'Comment on acp-2022-845', Anonymous Referee #2, 25 Feb 2023
  • AC1: 'Comment on acp-2022-845', Amelia Bond, 04 Apr 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Amelia Bond on behalf of the Authors (06 Apr 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (18 Apr 2023) by Markus Ammann
AR by Amelia Bond on behalf of the Authors (18 Apr 2023)  Manuscript 
Short summary
Atmospheric nitrous acid (HONO) amount fractions measured at Halley Research Station, Antarctica, were found to be low. Vertical fluxes of HONO from the snow were also measured and agree with the estimated HONO production rate from photolysis of snow nitrate. In a simple box model of HONO sources and sinks, there was good agreement between the measured flux and amount fraction. HONO was found to be an important OH radical source at Halley.
Final-revised paper