Articles | Volume 17, issue 2
Research article
13 Feb 2023
Research article |  | 13 Feb 2023

Antarctic sea ice regime shift associated with decreasing zonal symmetry in the Southern Annular Mode

Serena Schroeter, Terence J. O'Kane, and Paul A. Sandery


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on tc-2022-151', Anonymous Referee #1, 28 Sep 2022
    • AC1: 'Reply on RC1', Serena Schroeter, 18 Nov 2022
  • RC2: 'Comment on tc-2022-151', Anonymous Referee #2, 02 Nov 2022
    • AC2: 'Reply on RC2', Serena Schroeter, 18 Nov 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (28 Nov 2022) by Nicolas Jourdain
AR by Serena Schroeter on behalf of the Authors (16 Dec 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to technical corrections (28 Jan 2023) by Nicolas Jourdain
Short summary
Antarctic sea ice has increased over much of the satellite record, but we show that the early, strongly opposing regional trends diminish and reverse over time, leading to overall negative trends in recent decades. The dominant pattern of atmospheric flow has changed from strongly east–west to more wave-like with enhanced north–south winds. Sea surface temperatures have also changed from circumpolar cooling to regional warming, suggesting recent record low sea ice will not rapidly recover.