Articles | Volume 20, issue 6
Atmos. Chem. Phys., 20, 3987–3998, 2020
https://doi.org/10.5194/acp-20-3987-2020
Atmos. Chem. Phys., 20, 3987–3998, 2020
https://doi.org/10.5194/acp-20-3987-2020
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 et al.

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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.
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