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dc.contributor.authorVerdugo, Josefa
dc.contributor.authorDamm, Ellen
dc.contributor.authorNikolopoulos, Anna
dc.date.accessioned2021-07-07T11:27:02Z
dc.date.available2021-07-07T11:27:02Z
dc.date.created2021-06-25T12:57:43Z
dc.date.issued2021
dc.identifier.citationThe Cryosphere. 2021, 15 (6), 2701-2717.en_US
dc.identifier.issn1994-0416
dc.identifier.urihttps://hdl.handle.net/11250/2763771
dc.description.abstractSummer sea ice cover in the Arctic Ocean has declined sharply during the last decades, leading to changes in ice structures. The shift from thicker multi-year ice to thinner first-year ice changes the methane storage transported by sea ice into remote areas far away from its origin. As significant amounts of methane are stored in sea ice, minimal changes in the ice structure may have a strong impact on the fate of methane when ice melts. Hence, sea ice type is an important indicator of modifications to methane pathways. Based on measurements of methane concentration and its isotopic composition on a drifting ice floe, we report on different storage capacities of methane within first-year ice and ridged/rafted ice, as well as methane supersaturation in the seawater. During this early melt season, we show that ice type and/or structure determines the fate of methane and that methane released into seawater is a predominant pathway. We suggest that sea ice loaded with methane acts as a source of methane for polar surface waters during late spring.en_US
dc.language.isoengen_US
dc.titleMethane cycling within sea ice: Results from drifting ice during late spring, north of Svalbarden_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber2701-2717en_US
dc.source.volume15en_US
dc.source.journalThe Cryosphereen_US
dc.source.issue6en_US
dc.identifier.doi10.5194/tc-15-2701-2021
dc.identifier.cristin1918488
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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