Articles | Volume 21, issue 2
https://doi.org/10.5194/cp-21-529-2025
https://doi.org/10.5194/cp-21-529-2025
Research article
 | 
24 Feb 2025
Research article |  | 24 Feb 2025

Shifts in Greenland interannual climate variability lead Dansgaard–Oeschger abrupt warming by hundreds of years

Chloe A. Brashear, Tyler R. Jones, Valerie Morris, Bruce H. Vaughn, William H. G. Roberts, William B. Skorski, Abigail G. Hughes, Richard Nunn, Sune Olander Rasmussen, Kurt M. Cuffey, Bo M. Vinther, Todd Sowers, Christo Buizert, Vasileios Gkinis, Christian Holme, Mari F. Jensen, Sofia E. Kjellman, Petra M. Langebroek, Florian Mekhaldi, Kevin S. Rozmiarek, Jonathan W. Rheinlænder, Margit H. Simon, Giulia Sinnl, Silje Smith-Johnsen, and James W. C. White

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2024-1003', Anonymous Referee #1, 08 Jul 2024
  • RC2: 'Review of egusphere-2024-1003', Anonymous Referee #2, 09 Jul 2024

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (25 Aug 2024) by Amaelle Landais
AR by Chloe Brashear on behalf of the Authors (06 Oct 2024)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (16 Oct 2024) by Amaelle Landais
RR by Anonymous Referee #1 (27 Nov 2024)
RR by Anonymous Referee #2 (29 Nov 2024)
ED: Publish subject to minor revisions (review by editor) (14 Dec 2024) by Amaelle Landais
AR by Chloe Brashear on behalf of the Authors (22 Dec 2024)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to technical corrections (25 Dec 2024) by Amaelle Landais
AR by Chloe Brashear on behalf of the Authors (31 Dec 2024)  Author's response   Manuscript 
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Short summary
We use a series of spectral techniques to quantify the strength of high-frequency climate variability in northeastern Greenland to 50 000 ka before present. Importantly, we find that variability consistently decreases hundreds of years prior to Dansgaard–Oeschger warming events. Model simulations suggest a change in North Atlantic sea ice behavior contributed to this pattern, thus providing new information on the conditions which preceded abrupt climate change during the Last Glacial Period.

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