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Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic
Volume 14, issue 9
Biogeosciences, 14, 2283–2292, 2017
https://doi.org/10.5194/bg-14-2283-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Climate–carbon–cryosphere interactions in the...

Biogeosciences, 14, 2283–2292, 2017
https://doi.org/10.5194/bg-14-2283-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 05 May 2017

Research article | 05 May 2017

The origin of methane in the East Siberian Arctic Shelf unraveled with triple isotope analysis

Célia J. Sapart et al.

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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: Reconsider after major revisions (19 Dec 2016) by Francien Peterse
AR by Anna Wenzel on behalf of the Authors (03 Feb 2017)  Author's response
ED: Referee Nomination & Report Request started (06 Feb 2017) by Francien Peterse
RR by Anonymous Referee #3 (19 Feb 2017)
RR by Anonymous Referee #1 (01 Mar 2017)
ED: Publish subject to technical corrections (09 Mar 2017) by Francien Peterse
AR by Célia Julia Sapart on behalf of the Authors (17 Mar 2017)  Author's response    Manuscript
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Short summary
The Arctic Ocean, especially the Siberian shelves, overlays large areas of subsea permafrost that is degrading. We show that methane with a biogenic origin is emitted from this permafrost. At locations where bubble plumes have been observed, methane can escape oxidation in the surface sediment and rapidly migrate through the very shallow water column of this region to escape to the atmosphere, generating a positive radiative feedback.
The Arctic Ocean, especially the Siberian shelves, overlays large areas of subsea permafrost...
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