Thermokarst lake inception and development in syngenetic ice-wedge polygon terrain during a cooling climatic trend, Bylot Island (Nunavut), eastern Canadian Arctic

Bouchard, Frédéric; Fortier, Daniel; Paquette, Michel; Boucher, Vincent; Pienitz, Reinhard; Laurion, Isabelle

doi:https://doi.org/10.5194/tc-14-2607-2020

Articles | Volume 14, issue 8

https://doi.org/10.5194/tc-14-2607-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-14-2607-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 8

Research article

|

20 Aug 2020

Research article |

| 20 Aug 2020

Thermokarst lake inception and development in syngenetic ice-wedge polygon terrain during a cooling climatic trend, Bylot Island (Nunavut), eastern Canadian Arctic

Frédéric Bouchard, Daniel Fortier, Michel Paquette, Vincent Boucher, Reinhard Pienitz, and Isabelle Laurion

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Final revised paper (published on 20 Aug 2020)
Supplement to the final revised paper
Preprint (discussion started on 30 Oct 2019)
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

RC1: 'Review of "Thermokarst lake development in syngenetic ice-wedge polygon terrain in the Eastern Canadian Arctic (Bylot Island, Nunavut)"', Anonymous Referee #1, 10 Jan 2020
- AC1: 'Reply to Anonymous Referee #1', Frederic Bouchard, 06 Feb 2020
RC2: 'referee comment', Anonymous Referee #2, 10 Jan 2020
- AC2: 'Reply to Anonymous Referee #2', Frederic Bouchard, 07 Feb 2020

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (11 Feb 2020) by Peter Morse

AR by Frederic Bouchard on behalf of the Authors (21 Feb 2020) Author's response Manuscript

ED: Publish subject to minor revisions (review by editor) (06 Mar 2020) by Peter Morse

AR by Frederic Bouchard on behalf of the Authors (01 May 2020) Author's response Manuscript

ED: Publish subject to minor revisions (review by editor) (20 May 2020) by Peter Morse

AR by Frederic Bouchard on behalf of the Authors (19 Jun 2020) Author's response Manuscript

ED: Publish as is (24 Jun 2020) by Peter Morse

AR by Frederic Bouchard on behalf of the Authors (02 Jul 2020) Manuscript

Short summary

We combine lake mapping, landscape observations and sediment core analyses to document the evolution of a thermokarst (thaw) lake in the Canadian Arctic over the last millennia. We conclude that temperature is not the only driver of thermokarst development, as the lake likely started to form during a cooler period around 2000 years ago. The lake is now located in frozen layers with an organic carbon content that is an order of magnitude higher than the usually reported values across the Arctic.