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Abstract: Large amounts of methane are trapped within sub-seabed sediments in the Arctic ocean. Seasonal bottom water warming may induce the release of methane from the seafloor, yet methane seepage surveys mainly occur in summer. Here, we compare the seepage activity along the gas hydrate stability limit offshore Svalbard between cold and warm seasons. Hydro-acoustic surveys revealed decreased seepage activity during cold bottom water conditions, with 43 % fewer flares and methane release rates than under warmer conditions. For the first time, we demonstrate that cold seeps “hibernate” during cold seasons when more free methane gas becomes trapped in the sub-seabed sediments. Such a greenhouse gas capacitor increases the potential for methane release during summer months. Seasonal bottom water temperature variations are common in the Arctic continental shelves, and thus methane-seep hibernation is likely a widespread phenomenon underappreciated in previous global methane budgets.","citation:dsDescriptionDate":"2019-09-23"}],"timePeriodCovered":{"citation:timePeriodCoveredStart":"2016-05-06","citation:timePeriodCoveredEnd":"2016-05-08"},"citation:distributor":{"citation:distributorName":"UiT The Arctic University of Norway","citation:distributorAffiliation":"UiT The Arctic University of Norway","citation:distributorURL":"https://dataverse.no/dataverse/uit"},"geospatial:geographicCoverage":{"geospatial:country":"Svalbard and Jan Mayen"},"citation:producer":{"citation:producerName":"UiT The Arctic University of Norway","citation:producerAbbreviation":"UiT","citation:producerURL":"https://en.uit.no/"},"citation:datasetContact":{"citation:datasetContactName":"Ferré, Bénédicte","citation:datasetContactAffiliation":"UiT The Arctic University of Norway","citation:datasetContactEmail":"benedicte.ferre@uit.no"},"kindOfData":["Water temperature","Salinity","Pressure/ Depth","Methane free gas flow rate","Methane concentration","Methane oxidation rates"],"citation:productionDate":"2016-05-08","citation:productionPlace":"West of Svalbard","citation:depositor":"Jansson, Pär","journal:journalArticleType":"research article","language":"English","dateOfDeposit":"2019-09-23","title":"Replication Data for: Reduced methane seepage from Arctic sediments during cold bottom-water conditions","subject":"Earth and Environmental Sciences","@id":"https://doi.org/10.18710/EIFZ2J","@type":["ore:Aggregation","schema:Dataset"],"schema:version":"3.3","schema:name":"Replication Data for: Reduced methane seepage from Arctic sediments during cold bottom-water conditions","schema:dateModified":"Thu Sep 28 21:53:04 GMT 2023","schema:datePublished":"2019-09-30","schema:license":"http://creativecommons.org/publicdomain/zero/1.0","dvcore:fileTermsOfAccess":{"dvcore:fileRequestAccess":true},"schema:includedInDataCatalog":"DataverseNO","schema:isPartOf":{"schema:name":"UiT The Arctic University of Norway","@id":"https://dataverse.no/dataverse/uit","schema:description":"Looking for TROLLing? 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