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dc.contributor.authorBerndt, Christian
dc.contributor.authorFeseker, Tomas
dc.contributor.authorTreude, Tina
dc.contributor.authorKrastel, Sebastien
dc.contributor.authorLiebetrau, Volker
dc.contributor.authorNiemann, Helge
dc.contributor.authorBertics, Victoria
dc.contributor.authorDumke, Ines
dc.contributor.authorDünnbier, Karolin
dc.contributor.authorFerré, Benedicte
dc.contributor.authorGraves, Carolyn
dc.contributor.authorGross, Felix
dc.contributor.authorHissmann, Karen
dc.contributor.authorHühnerbach, Veit
dc.contributor.authorKrause, Stefan
dc.contributor.authorLieser, Kathrin
dc.contributor.authorSchauer, Jürgen
dc.contributor.authorSteinle, Lea
dc.date.accessioned2018-07-23T09:00:44Z
dc.date.available2018-07-23T09:00:44Z
dc.date.issued2014-01-17
dc.description.abstractMethane hydrate is an icelike substance that is stable at high pressure and low temperature in continental margin sediments. Since the discovery of a large number of gas flares at the landward termination of the gas hydrate stability zone off Svalbard, there has been concern that warming bottom waters have started to dissociate large amounts of gas hydrate and that the resulting methane release may possibly accelerate global warming. Here, we corroborate that hydrates play a role in the observed seepage of gas, but we present evidence that seepage off Svalbard has been ongoing for at least 3000 years and that seasonal fluctuations of 1° to 2°C in the bottom-water temperature cause periodic gas hydrate formation and dissociation, which focus seepage at the observed sites.en_US
dc.description.sponsorshipThe German Research Foundation (DFG) The Swiss National Science Foundation The Cluster of Excellence “The Future Ocean” The ESONET project (European Seas Observatory NETwork) The PERGAMON project (European Cooperation in Science and Technology) The Alexander von Humboldt Foundationen_US
dc.descriptionThis is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on vol. 343, issue 6168, 17 Jan 2014, <a href=https://doi.org/10.1126/science.1246298> https://doi.org/10.1126/science.1246298</a>.en_US
dc.identifier.citationBerndt, C., Feseker, T., Treude, T., Krastel, S., Liebetrau, V., Niemann, H., ... Steinle, L. (2014). Temporal constraints on hydrate-controlled methane seepage off Svalbard. Science. 343(6168), 284-287. https://doi.org/10.1126/science.1246298en_US
dc.identifier.cristinIDFRIDAID 1097674
dc.identifier.doi10.1126/science.1246298
dc.identifier.issn0036-8075
dc.identifier.issn1095-9203
dc.identifier.urihttps://hdl.handle.net/10037/13243
dc.language.isoengen_US
dc.publisherAmerican Association for the Advancement of Scienceen_US
dc.relation.journalScience
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450en_US
dc.titleTemporal constraints on hydrate-controlled methane seepage off Svalbarden_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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