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dc.contributor.authorSilyakova, Anna
dc.contributor.authorNomura, Daiki
dc.contributor.authorKotovitch, Marie
dc.contributor.authorFransson, Agneta
dc.contributor.authorDelille, Bruno
dc.contributor.authorChierici, Melissa
dc.contributor.authorGranskog, Mats A.
dc.date.accessioned2022-12-08T09:35:28Z
dc.date.available2022-12-08T09:35:28Z
dc.date.issued2022-08-03
dc.description.abstractWe examine an Arctic winter storm event, which led to ice break–up, the formation of open leads, and the subsequent freezing of these leads. The methane (CH<sub>4</sub>) concentration in under–ice surface water before and during the storm event was 8–12 nmol L<sup>−1</sup>, which resulted in a potential sea–to–air CH<sub>4</sub> flux ranging from +0.2 to +2.1 mg CH<sub>4</sub> m<sup>−2</sup> d<sup>−1</sup> in open leads. CH<sub>4</sub> ventilation between seawater and atmosphere occurred when both open water fraction and wind speed increased. Over the nine days after the storm, sea ice grew 27 cm thick. Initially, CH<sub>4</sub> concentrations in the sea ice brine were above the equilibrium with the atmosphere. As the ice grew thicker, most of the CH<sub>4</sub> was lost from upper layers of sea ice into the atmosphere, implying continued CH<sub>4</sub> evasion after the leads were ice–covered. This suggests that wintertime CH<sub>4</sub> emissions need to be better constrained.en_US
dc.identifier.citationSilyakova A, Nomura D, Kotovitch m, Fransson A, Delille B, Chierici M, Granskog MA. Methane release from open leads and new ice following an Arctic winter storm event. Polar Science. 2022;33en_US
dc.identifier.cristinIDFRIDAID 2043344
dc.identifier.doi10.1016/j.polar.2022.100874
dc.identifier.issn1873-9652
dc.identifier.issn1876-4428
dc.identifier.urihttps://hdl.handle.net/10037/27745
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalPolar Science
dc.relation.projectIDNorges forskningsråd: 223259en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2022 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleMethane release from open leads and new ice following an Arctic winter storm eventen_US
dc.type.versionacceptedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)