{"refrec":{"BRefID":211084,"RR":"<b>Rangama, Y.; Boutin, J.; Etcheto, J.; Merlivat, L.; Takahashi, T.; Delille, B.; Frankignoulle, M.; Bakker, D.C.E.</b> (2005). Variability of the net air-sea CO<sub>2</sub> flux inferred from shipboard and satellite measurements in the Southern Ocean south of Tasmania and New Zealand. <i>J. Geophys. Res. 110(C9)</i>. <a href=\"http://dx.doi.org/10.1029/2004JC002619\" target=\"_blank\">dx.doi.org/10.1029/2004JC002619</a>","BEntID":203006,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Geophys. Res. 110(C9)</i>. <a href=\"https://dx.doi.org/10.1029/2004JC002619\" target=\"_blank\">https://dx.doi.org/10.1029/2004JC002619</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Rangama, Y.; Boutin, J.; Etcheto, J.; Merlivat, L.; Takahashi, T.; Delille, B.; Frankignoulle, M.; Bakker, D.C.E.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Rangama, Y. <i>et al.</i>","Englishabstract":"We determine the distribution of oceanic CO<sub>2</sub> partial pressure (pCO<sub>2</sub>) with respect to remotely sensed parameters (sea surface temperature (SST) and chlorophyll (Chl)) in order to gain an understanding of the small-scale (10-100 km) pCO<sub>2</sub> variability and to estimate the net air-sea CO<sub>2</sub> flux in the region (125°E-205°E; 45°S-60°S), which represents 22% of the Southern Ocean area between 45°S and 60°S. We split the study area into several biogeochemical provinces. In chlorophyll-poor regions, pCO<sub>2</sub> is negatively correlated with SST, indicating that pCO<sub>2</sub> is mostly controlled by mixing processes. For Chl > 0.37 mg m<sup>-3</sup>, pCO<sub>2</sub> is negatively correlated with Chl, indicating that pCO<sub>2</sub> variability is mostly controlled by carbon fixation by biological activity. We deduce fields of pCO<sub>2</sub> and of air-sea CO<sub>2</sub> fluxes from satellite parameters using pCO<sub>2</sub>-SST, pCO<sub>2</sub>-chlorophyll relationships and air-sea gas exchange coefficient, K, from satellite wind speed. We estimate an oceanic CO<sub>2</sub> sink from December 1997 to December 1998 of -0.08 GtC yr<sup>-1</sup> with an error of 0.03 GtC yr<sup>-1</sup>. This sink is approximately 38% smaller than that computed from the Takahashi et al. (2002) climatological distribution of Delta pCO<sub>2</sub> for the 1995 year but with the same K (-0.13 GtC yr<sup>-1</sup>). When we correct ocean pCO<sub>2</sub> for the interannual variability between 1995 and 1998, the difference is even larger, and we cannot reconcile both estimates in February-March and from June to November. This strengthens the need of new in situ measurements for validating extrapolation methods and for improving knowledge of interannual pCO<sub>2</sub> variability.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Variability of the net air-sea CO<sub>2</sub> flux inferred from shipboard and satellite measurements in the Southern Ocean south of Tasmania and New Zealand","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":2005,"MonPub":null,"DateUpdate":"2015-11-05","DateCreate":"2011-12-22","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000231828400001","VABBcode":null,"OpenAcc":0,"DOI":"10.1029/2004JC002619"},"refs":null,"anarec":{"AnaID":211084,"PubliDate":2005,"Pagination":null,"XtraPublOfAnaID":null,"ISBN":null,"Volume":"110","Issue":"C9","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":90908,"SerRR":"Journal of Geophysical Research. 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