Using ship-borne observations of methane isotopic ratio in the Arctic Ocean to understand methane sources in the Arctic

Berchet, Antoine; Pison, Isabelle; Crill, Patrick M.; Thornton, Brett; Bousquet, Philippe; Thonat, Thibaud; Hocking, Thomas; Thanwerdas, Joël; Paris, Jean-Daniel; Saunois, Marielle

doi:https://doi.org/10.5194/acp-20-3987-2020

Articles | Volume 20, issue 6

https://doi.org/10.5194/acp-20-3987-2020

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

https://doi.org/10.5194/acp-20-3987-2020

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

Articles | Volume 20, issue 6

Research article

|

02 Apr 2020

Research article |

| 02 Apr 2020

Using ship-borne observations of methane isotopic ratio in the Arctic Ocean to understand methane sources in the Arctic

Antoine Berchet, Isabelle Pison, Patrick M. Crill, Brett Thornton, Philippe Bousquet, Thibaud Thonat, Thomas Hocking, Joël Thanwerdas, Jean-Daniel Paris, and Marielle Saunois

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Final revised paper (published on 02 Apr 2020)
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Preprint (discussion started on 28 Aug 2019)
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Interactive discussion

Status: closed

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

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RC1: 'Review on the manuscript titled ‘Using ship-borne observations of methane isotopic ratio in the Arctic Ocean to understand methane sources in the Arctic’, submitted for publication in Atmospheric Chemistry and Physics by Antoine Berchet et al.', Anonymous Referee #1, 27 Oct 2019
RC2: 'Review Of: Using ship-borne observations of methane isotopic ratio in the Arctic Ocean to understand methane sources in the Arctic', Anonymous Referee #2, 05 Nov 2019
AC1: 'Final response for "Using ship-borne observations of methane isotopic ratio in the Arctic Ocean to understand methane sources in the Arctic"', Antoine Berchet, 07 Feb 2020

Peer-review completion

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

AR by Lorena Grabowski on behalf of the Authors (08 Feb 2020) Author's response

ED: Publish as is (10 Feb 2020) by Eliza Harris

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Short summary

Methane isotopes in the atmosphere can help us differentiate between emission processes. A large variety of natural and anthropogenic emission types are active in the Arctic and are unsatisfactorily understood and documented up to now. A ship-based campaign was carried out in summer 2014, providing a unique dataset of isotopic measurements in the Arctic Ocean. Using a chemistry-transport model, we link these measurements to circumpolar emissions and retrieve information about their signature.