{"refrec":{"BRefID":220944,"RR":"<b>Borges, A.V.; Tilbrook, B.; Metzl, N.; Lenton, A.; Delille, B.</b> (2008). Inter-annual variability of the carbon dioxide oceanic sink south of Tasmania. <i>Biogeosciences 5(1)</i>: 141-155. <a href=\"http://dx.doi.org/10.5194/bg-5-141-2008\" target=\"_blank\">http://dx.doi.org/10.5194/bg-5-141-2008</a>","BEntID":212674,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Biogeosciences 5(1)</i>: 141-155. <a href=\"http://dx.doi.org/10.5194/bg-5-141-2008\" target=\"_blank\">http://dx.doi.org/10.5194/bg-5-141-2008</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Borges, A.V.; Tilbrook, B.; Metzl, N.; Lenton, A.; Delille, B.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Borges, A.V. <i>et al.</i>","Englishabstract":"We compiled a large data-set from 22 cruises spanning from 1991 to 2003, of the partial pressure of CO<sub>2</sub> (pCO<sub>2</sub>) in surface waters over the continental shelf (CS) and adjacent open ocean (43&deg; to 46&deg; S; 145&deg; to 150&deg; E), south of Tasmania. Climatological seasonal cycles of pCO<sub>2</sub> in the CS, the subtropical zone (STZ) and the subAntarctic zone (SAZ) are described and used to determine monthly pCO<sub>2</sub> anomalies. These are used in combination with monthly anomalies of sea surface temperature (SST) to investigate inter-annual variations of SST and pCO<sub>2</sub>. Monthly anomalies of SST (as intense as 2&deg;C) are apparent in the CS, STZ and SAZ, and are indicative of strong inter-annual variability that seems to be related to large-scale coupled atmosphere-ocean oscillations. Anomalies of pCO<sub>2</sub> normalized to a constant temperature are negatively related to SST anomalies. A reduced winter-time vertical input of dissolved inorganic carbon (DIC) during phases of positive SST anomalies, related to a poleward shift of westerly winds, and a concomitant local decrease in wind stress is the likely cause of the negative relationship between pCO<sub>2</sub> and SST anomalies. The observed pattern is an increase of the sink for atmospheric CO<sub>2</sub> associated with positive SST anomalies, although strongly modulated by inter-annual variability of wind speed. Assuming that phases of positive SST anomalies are indicative of the future evolution of regional ocean biogeochemistry under global warming, we show using a purely observational based approach that some provinces of the Southern Ocean could provide a potential negative feedback on increasing atmospheric CO<sub>2</sub>.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Inter-annual variability of the carbon dioxide oceanic sink south of Tasmania","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":2008,"MonPub":null,"DateUpdate":"2014-10-09","DateCreate":"2012-12-07","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000253673100002","VABBcode":null,"OpenAcc":1,"DOI":"10.5194/bg-5-141-2008"},"refs":null,"anarec":{"AnaID":220944,"PubliDate":2008,"Pagination":"141-155","XtraPublOfAnaID":null,"ISBN":null,"Volume":"5","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":68092,"SerRR":"<b>Gattuso, J.P.; Kesselmeier, J. (Ed.)</b> Biogeosciences. Copernicus Publications: Göttingen.  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