Articles | Volume 15, issue 3
https://doi.org/10.5194/cp-15-913-2019
https://doi.org/10.5194/cp-15-913-2019
Research article
 | 
22 May 2019
Research article |  | 22 May 2019

Antarctic temperature and CO2: near-synchrony yet variable phasing during the last deglaciation

Jai Chowdhry Beeman, Léa Gest, Frédéric Parrenin, Dominique Raynaud, Tyler J. Fudge, Christo Buizert, and Edward J. Brook

Download

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (05 Sep 2018) by Hubertus Fischer
AR by Jai Chowdhry Beeman on behalf of the Authors (19 Oct 2018)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (13 Nov 2018) by Hubertus Fischer
RR by Anonymous Referee #1 (23 Nov 2018)
RR by Anonymous Referee #2 (11 Dec 2018)
ED: Reconsider after major revisions (20 Dec 2018) by Hubertus Fischer
AR by Jai Chowdhry Beeman on behalf of the Authors (05 Mar 2019)
ED: Publish subject to minor revisions (review by editor) (02 Apr 2019) by Hubertus Fischer
AR by Jai Chowdhry Beeman on behalf of the Authors (12 Apr 2019)  Author's response   Manuscript 
ED: Publish subject to technical corrections (30 Apr 2019) by Hubertus Fischer
AR by Jai Chowdhry Beeman on behalf of the Authors (07 May 2019)  Author's response   Manuscript 
Download
Short summary
Atmospheric CO2 was likely an important amplifier of global-scale orbitally-driven warming during the last deglaciation. However, the mechanisms responsible for the rise in CO2, and the coherent rise in Antarctic isotopic temperature records, are under debate. Using a stochastic method, we detect variable lags between coherent changes in Antarctic temperature and CO2. This implies that the climate mechanisms linking the two records changed or experienced modulations during the deglaciation.