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ACP | Articles | Volume 20, issue 6
Atmos. Chem. Phys., 20, 3987–3998, 2020
https://doi.org/10.5194/acp-20-3987-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 20, 3987–3998, 2020
https://doi.org/10.5194/acp-20-3987-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

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.

Data sets

Atmospheric methane and carbon dioxide and surface water methane from the SWERUS-C3 Arctic Ocean expedition in 2014, leg 1 B. Thornton, M. Geibel, P. Crill, and C. Humborg https://bolin.su.se/data/thornton-2016

Atmospheric methane and carbon dioxide from the SWERUS-C3 Arctic Ocean expedition in 2014, leg 2 B. Thornton, M. Geibel, P. Crill, and C. Humborg https://bolin.su.se/data/swerus-2014-ghg

Carbon isotope ratio (δ¹³C) in atmospheric methane from the SWERUS-C3 Arctic Ocean expedition in 2014 B. Thornton, M. Geibel, P. Crill, and C. Humborg https://bolin.su.se/data/swerus-2014-d13c

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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.
Methane isotopes in the atmosphere can help us differentiate between emission processes. A large...
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