{"refrec":{"BRefID":246920,"RR":"<b>Delille, B.; Vancoppenolle, M; Geilfus, X; Tilbrook, B; Lannuzel, D; Schoemann, V.; Becquevort, S.; Carnat, G.; Delille, D; Lancelot, C.; Chou, L.; Dieckmann, S; Tison, J.-L.</b> (2014). Southern Ocean CO<sub>2</sub> sink: the contribution of the sea ice. <i>J. Geophys. Res. Oceans(119)</i>: 6340-6355. <a href=\"http://dx.doi.org/10.1002/2014JC009941\" target=\"_blank\">dx.doi.org/10.1002/2014JC009941</a>","BEntID":238620,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Geophys. Res. Oceans(119)</i>: 6340-6355. <a href=\"https://dx.doi.org/10.1002/2014JC009941\" target=\"_blank\">https://dx.doi.org/10.1002/2014JC009941</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Delille, B.; Vancoppenolle, M; Geilfus, X; Tilbrook, B; Lannuzel, D; Schoemann, V.; Becquevort, S.; Carnat, G.; Delille, D; Lancelot, C.; Chou, L.; Dieckmann, S; Tison, J.-L.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Delille, B. <i>et al.</i>","Englishabstract":"We report first direct measurements of the partial pressure of CO<sub>2</sub> (pCO<sub>2</sub>) within Antarctic pack sea ice brines and related CO<sub>2</sub> fluxes across the air-ice interface. From late winter to summer, brines encased in the ice change from a CO<sub>2</sub> large oversaturation, relative to the atmosphere, to a marked undersaturation while the underlying oceanic waters remains slightly oversaturated. The decrease from winter to summer of pCO<sub>2</sub> in the brines is driven by dilution with melting ice, dissolution of carbonate crystals, and net primary production. As the ice warms, its permeability increases, allowing CO<sub>2</sub> transfer at the air-sea ice interface. The sea ice changes from a transient source to a sink for atmospheric CO<sub>2</sub>. We upscale these observations to the whole Antarctic sea ice cover using the NEMO-LIM3 large-scale sea ice-ocean and provide first estimates of spring and summer CO<sub>2</sub> uptake from the atmosphere by Antarctic sea ice. Over the spring-summer period, the Antarctic sea ice cover is a net sink of atmospheric CO<sub>2</sub> of 0.029 Pg C, about 58% of the estimated annual uptake from the Southern Ocean. Sea ice then contributes significantly to the sink of CO<sub>2</sub> of the Southern Ocean.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Southern Ocean CO<sub>2</sub> sink: the contribution of the 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":"sea ice; Antarctic; carbon dioxide; CaCO3 precipitation; NEMO-LIM3","OtherDescriptors":null,"Notes":null,"AnaPub":2014,"MonPub":null,"DateUpdate":"2015-10-28","DateCreate":"2015-05-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000343879200043","VABBcode":null,"OpenAcc":0,"DOI":"10.1002/2014JC009941"},"refs":null,"anarec":{"AnaID":246920,"PubliDate":2014,"Pagination":"6340-6355","XtraPublOfAnaID":null,"ISBN":null,"Volume":"Oceans","Issue":"119","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":90908,"SerRR":"Journal of Geophysical Research. 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