{"refrec":{"BRefID":256764,"RR":"<b>Pasquer, B.; Metzl, N.; Goosse, H.; Lancelot, C.</b> (2015). What drives the seasonality of air-sea CO<sub>2</sub> fluxes in the ice-free zone of the Southern Ocean: a 1D coupled physical-biogeochemical model approach. <i>Mar. Chem. 177(Part 3)</i>: 554-565. <a href=\"https://dx.doi.org/10.1016/j.marchem.2015.08.008\" target=\"_blank\">https://dx.doi.org/10.1016/j.marchem.2015.08.008</a>","BEntID":248773,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Mar. Chem. 177(Part 3)</i>: 554-565. <a href=\"https://dx.doi.org/10.1016/j.marchem.2015.08.008\" target=\"_blank\">https://dx.doi.org/10.1016/j.marchem.2015.08.008</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Pasquer, B.; Metzl, N.; Goosse, H.; Lancelot, C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Pasquer, B. <i>et al.</i>","Englishabstract":"The complex biogeochemical SWAMCO-3 model has been used to assess the response of the ice-free Southern Ocean to the physical and biological mechanisms governing air–sea CO<sub>2</sub> exchanges. For this application, the model explicitly details the dynamics of three Phytoplankton Functional Types (PFTs) of importance for C, N, P, Si, Fe cycling and air–sea CO<sub>2</sub> exchange in this area. These are the diatoms, the pico–nanophytoplankton and the coccolithophores whose growth regulation by light, temperature and nutrients has been obtained from a literature review of phenomenological observations available for these PFTs. The performance of the SWAMCO-3 model coupled to a vertical one-dimensional physical model was first assessed at the location of the JGOFS time-series station KERFIX. The model was able to reproduce a mean seasonal cycle based on years where a maximum of chemical and biological observations are available at this location (1993–1994, 1994–1995, 1998–1999 and 2000–2001). Ocean fCO<sub>2</sub> in equilibrium with the atmosphere are simulated both in Austral winter associated with surface layer replenishment in DIC due to deep vertical mixing and in late summer as a consequence of the warming effect on the carbonate system. A clear under-saturation is found in spring/summer. Analysis of the modelled seasonal biogeochemical and physical features shows that thermodynamical conditions are driving the air–sea exchange of CO<sub>2</sub> in the region, while the biological activity under the control of light and iron availability, is responsible for the predicted relatively modest annual carbon sink (- 0.9 mol C m<sup>- 2</sup> y<sup>- 1</sup>).","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"What drives the seasonality of air-sea CO<sub>2</sub> fluxes in the ice-free zone of the Southern Ocean: a 1D coupled physical-biogeochemical model approach","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":"Biogeochemical modelling; Southern Ocean; Air-sea CO2 fluxes;Seasonality","OtherDescriptors":null,"Notes":null,"AnaPub":2015,"MonPub":null,"DateUpdate":"2018-08-28","DateCreate":"2016-05-29","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000366788600015","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.marchem.2015.08.008"},"refs":null,"anarec":{"AnaID":256764,"PubliDate":2015,"Pagination":"554-565","XtraPublOfAnaID":null,"ISBN":null,"Volume":"177","Issue":"Part 3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43353,"SerRR":"Marine Chemistry. Elsevier: Amsterdam.  ISSN 0304-4203; e-ISSN 1872-7581","StandardTitleSer":"Marine Chemistry","ISSN":"0304-4203","AbbrevSer":"Mar. 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