Articles | Volume 15, issue 4
The Cryosphere, 15, 1787–1810, 2021
https://doi.org/10.5194/tc-15-1787-2021
The Cryosphere, 15, 1787–1810, 2021
https://doi.org/10.5194/tc-15-1787-2021

Research article 13 Apr 2021

Research article | 13 Apr 2021

Pervasive diffusion of climate signals recorded in ice-vein ionic impurities

Felix S. L. Ng

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (16 Dec 2020) by Nanna Bjørnholt Karlsson
AR by Felix Ng on behalf of the Authors (23 Jan 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to revisions (further review by editor and referees) (12 Feb 2021) by Nanna Bjørnholt Karlsson
AR by Felix Ng on behalf of the Authors (12 Feb 2021)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (12 Feb 2021) by Nanna Bjørnholt Karlsson
RR by Eric Wolff (03 Mar 2021)
ED: Publish subject to minor revisions (review by editor) (03 Mar 2021) by Nanna Bjørnholt Karlsson
AR by Felix Ng on behalf of the Authors (05 Mar 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to technical corrections (05 Mar 2021) by Nanna Bjørnholt Karlsson
AR by Felix Ng on behalf of the Authors (05 Mar 2021)  Author's response    Manuscript
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Short summary
Current theory predicts climate signals in the vein chemistry of ice cores to migrate, hampering their dating. I show that the Gibbs–Thomson effect, which has been overlooked, causes fast diffusion that prevents signals from surviving into deep ice. Hence the deep climatic peaks in Antarctic and Greenlandic ice must be due to impurities in the ice matrix (outside veins) and safe from migration. These findings reset our understanding of postdepositional changes of ice-core climate signals.