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Climate of the Past An interactive open-access journal of the European Geosciences Union
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Volume 12, issue 4
Clim. Past, 12, 1061–1077, 2016
https://doi.org/10.5194/cp-12-1061-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: International Partnerships in Ice Core Sciences (IPICS) Second...

Clim. Past, 12, 1061–1077, 2016
https://doi.org/10.5194/cp-12-1061-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 26 Apr 2016

Research article | 26 Apr 2016

Local artifacts in ice core methane records caused by layered bubble trapping and in situ production: a multi-site investigation

Rachael H. Rhodes et al.

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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) (01 Apr 2016) by Tas van Ommen
AR by Rachael Rhodes on behalf of the Authors (15 Apr 2016)  Author's response    Manuscript
ED: Publish subject to technical corrections (19 Apr 2016) by Tas van Ommen
Publications Copernicus
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Short summary
Local artifacts in ice core methane data are superimposed on consistent records of past atmospheric variability. These artifacts are not related to past atmospheric history and care should be taken to avoid interpreting them as such. By investigating five polar ice cores from sites with different conditions, we relate isolated methane spikes to melt layers and decimetre-scale variations as "trapping signal" associated with a difference in timing of air bubble closure in adjacent firn layers.
Local artifacts in ice core methane data are superimposed on consistent records of past...
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