Modern to millennium-old greenhouse gases emitted from ponds and lakes of the Eastern Canadian Arctic (Bylot Island, Nunavut)

Bouchard, F.; Laurion, I.; Pr&#x0117;skienis, V.; Fortier, D.; Xu, X.; Whiticar, M. J.

doi:https://doi.org/10.5194/bg-12-7279-2015

Articles | Volume 12, issue 23

https://doi.org/10.5194/bg-12-7279-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Freshwater ecosystems in changing permafrost landscapes

https://doi.org/10.5194/bg-12-7279-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 12, issue 23

Research article

|

14 Dec 2015

Research article |

| 14 Dec 2015

Modern to millennium-old greenhouse gases emitted from ponds and lakes of the Eastern Canadian Arctic (Bylot Island, Nunavut)

F. Bouchard, I. Laurion, V. Prėskienis, D. Fortier, X. Xu, and M. J. Whiticar

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Final revised paper (published on 14 Dec 2015)
Preprint (discussion started on 24 Jul 2015)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C4947: 'Needs to expand on some data, otherwise a fine paper.', Anonymous Referee #1, 04 Sep 2015
- AC C7251: 'Reply to Referee #1 (bg-2015-314)', Frederic Bouchard, 31 Oct 2015
RC C5106: 'Some minor issues', Moritz Langer, 09 Sep 2015
- AC C7252: 'Reply to Referee #2 (bg-2015-314)', Frederic Bouchard, 31 Oct 2015

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to minor revisions (Editor review) (10 Nov 2015) by Jorien Vonk

AR by Frederic Bouchard on behalf of the Authors (24 Nov 2015) Author's response Manuscript

ED: Publish as is (25 Nov 2015) by Jorien Vonk

Short summary

We report on greenhouse gas (GHG) emissions in permafrost aquatic systems of the Eastern Canadian Arctic. We found strikingly different ages, sources and emission rates depending on aquatic system types. Small and shallow ponds generally emitted young (modern to a few centuries old) GHG, whereas larger and deeper lakes released much older GHG, in particular millennium-old CH4 from lake central areas. To our knowledge, this work is the first to report on GHG age from Canadian Arctic lakes.