Articles | Volume 20, issue 2
Research article
08 Feb 2024
Research article |  | 08 Feb 2024

Effective diffusivity of sulfuric acid in Antarctic ice cores

Tyler J. Fudge, Raphael Sauvage, Linh Vu, Benjamin H. Hills, Mirko Severi, and Edwin D. Waddington


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2022-1219', Anonymous Referee #1, 18 Mar 2023
    • AC1: 'Reply on RC1', T.J. Fudge, 09 Oct 2023
  • RC2: 'Comment on egusphere-2022-1219', Anonymous Referee #2, 15 Apr 2023
    • AC2: 'Reply on RC2', T.J. Fudge, 09 Oct 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Publish as is (27 Nov 2023) by Carlo Barbante
AR by T.J. Fudge on behalf of the Authors (21 Dec 2023)  Author's response   Manuscript 
Short summary
We use the oldest Antarctic ice core to estimate the rate of diffusion of sulfuric acid. Sulfuric acid is a marker of past volcanic activity and is critical in developing ice core timescales. The rate of diffusion is uncertain and is important to know, both for selecting future ice core locations and interpreting ice core records. We find the effective diffusivity of sulfate is 10 times smaller than previously estimated, indicating that the sulfuric acid signals will persist for longer.