Articles | Volume 14, issue 9
Biogeosciences, 14, 2283–2292, 2017

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

Biogeosciences, 14, 2283–2292, 2017

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.


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: 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
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.
Final-revised paper