{"refrec":{"BRefID":247093,"RR":"<b>Zhou, J.; Tison, J.-L.; Carnat, G.; Geilfus, X; Delille, B.</b> (2014). Physical controls on the storage of methane in landfast sea ice. <i>Cryosphere 8(3)</i>: 1019-1029. <a href=\"http://dx.doi.org/10.5194/tc-8-1019-2014\" target=\"_blank\">dx.doi.org/10.5194/tc-8-1019-2014</a>","BEntID":238793,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Cryosphere 8(3)</i>: 1019-1029. <a href=\"https://dx.doi.org/10.5194/tc-8-1019-2014\" target=\"_blank\">https://dx.doi.org/10.5194/tc-8-1019-2014</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Zhou, J.; Tison, J.-L.; Carnat, G.; Geilfus, X; Delille, B.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Zhou, J. <i>et al.</i>","Englishabstract":"We report on methane (CH<sub>4</sub>) dynamics in landfast sea ice, brine and under-ice seawater at Barrow in 2009. The CH<sub>4</sub> concentrations in under-ice water ranged from 25.9 to 116.4 nmol L<sup>-1</sup><sub>sw</sub>, indicating a supersaturation of 700 to 3100% relative to the atmosphere. In comparison, the CH<sub>4</sub> concentrations in sea ice ranged from 3.4 to 17.2 nmol L<sup>-1</sup><sub>ice</sub> and the deduced CH<sub>4</sub> concentrations in brine from 13.2 to 677.7 nmol L<sup>-1</sup><sub>brine</sub>. We investigated the processes underlying the difference in CH<sub>4</sub> concentrations between sea ice, brine and under-ice water and suggest that biological controls on the storage of CH<sub>4</sub> in ice were minor in comparison to the physical controls. Two physical processes regulated the storage of CH<sub>4</sub> in our landfast ice samples: bubble formation within the ice and sea ice permeability. Gas bubble formation due to brine concentration and solubility decrease favoured the accumulation of CH<sub>4</sub> in the ice at the beginning of ice growth. CH<sub>4</sub> retention in sea ice was then twice as efficient as that of salt; this also explains the overall higher CH<sub>4</sub> concentrations in brine than in the under-ice water. As sea ice thickened, gas bubble formation became less efficient, CH<sub>4</sub> was then mainly trapped in the dissolved state. The increase of sea ice permeability during ice melt marked the end of CH<sub>4</sub> storage.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Physical controls on the storage of methane in landfast sea ice","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2014,"MonPub":null,"DateUpdate":"2015-06-01","DateCreate":"2015-05-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000338655600016","VABBcode":null,"OpenAcc":1,"DOI":"10.5194/tc-8-1019-2014"},"refs":null,"anarec":{"AnaID":247093,"PubliDate":2014,"Pagination":"1019-1029","XtraPublOfAnaID":null,"ISBN":null,"Volume":"8","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":216569,"SerRR":"The Cryosphere. 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ISSN 1994-0416; e-ISSN 1994-0424","StandardTitleSer":"The Cryosphere","ISSN":"1994-0416","AbbrevSer":"Cryosphere","StandardTitleMon":null,"StartPage":1019,"Pages":11,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Zhou","Firstname":"Jiayun","Initials":"J.","Affiliation":"Laboratoire de Glaciologie, DSTE, Université Libre de Bruxelles","Discriminator":null,"CorporateFlag":0,"BEntID":238793,"AutID":129451,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Université Libre de Bruxelles; Faculté des Sciences; Département des Sciences de la Terre et de l'Environnement; Laboratoire de Glaciologie","ORCID":"0000-0001-9578-794X","PersID":24974,"InsID":1978},{"AutName":"Tison","Firstname":"Jean-Louis","Initials":"J.-L.","Affiliation":"Laboratoire de Glaciologie, DSTE, Université Libre de Bruxelles","Discriminator":null,"CorporateFlag":0,"BEntID":238793,"AutID":153702,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Université Libre de Bruxelles; 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