Ocean Science
Ocean Science
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Articles | Volume 18, issue 1
Articles | Volume 18, issue 1
https://doi.org/10.5194/os-18-233-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-18-233-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 1
Research article
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18 Feb 2022
Research article | Highlight paper |  | 18 Feb 2022

Autonomous methane seep site monitoring offshore western Svalbard: hourly to seasonal variability and associated oceanographic parameters

Knut Ola Dølven, Bénédicte Ferré, Anna Silyakova, Pär Jansson, Peter Linke, and Manuel Moser

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Latest update: 28 Oct 2025
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Short summary
Natural sources of atmospheric methane need to be better described and quantified. We present time series from ocean observatories monitoring two seabed methane seep sites in the Arctic. Methane concentration varied considerably on short timescales and seasonal scales. Seeps persisted throughout the year, with increased potential for atmospheric release in winter due to water mixing. The results highlight and constrain uncertainties in current methane estimates from seabed methane seepage.
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