Articles | Volume 14, issue 9
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, Natalia Shakhova, Igor Semiletov, Joachim Jansen, Sönke Szidat, Denis Kosmach, Oleg Dudarev, Carina van der Veen, Matthias Egger, Valentine Sergienko, Anatoly Salyuk, Vladimir Tumskoy, Jean-Louis Tison, and Thomas Röckmann


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 (19 Dec 2016) by Francien Peterse
AR by Célia Julia Sapart on behalf of the Authors (30 Jan 2017)  Manuscript 
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