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dc.contributor.authorPezzi, Luciano Ponzipt_BR
dc.contributor.authorSouza, Ronald Buss dept_BR
dc.contributor.authorSantini, Marcelo F.pt_BR
dc.contributor.authorMiller, Arthur J.pt_BR
dc.contributor.authorCarvalho, Jonas T.pt_BR
dc.contributor.authorParise, Cláudia Klosept_BR
dc.contributor.authorQuadro, Mario F.pt_BR
dc.contributor.authorRosa, Eliana B.pt_BR
dc.contributor.authorJustino, Flavio Barbosapt_BR
dc.contributor.authorSutil, Ueslei Adrianopt_BR
dc.contributor.authorCabrera, Mylene J.pt_BR
dc.contributor.authorBabanin, Alexander V.pt_BR
dc.contributor.authorVoermans, Joeypt_BR
dc.contributor.authorNascimento, Ernani L.pt_BR
dc.contributor.authorAlves, Rita de Cássia Marquespt_BR
dc.contributor.authorMunchow, Gabriel Bonowpt_BR
dc.contributor.authorRubert, Joelpt_BR
dc.date.accessioned2023-11-25T03:25:43Zpt_BR
dc.date.issued2021pt_BR
dc.identifier.issn2045-2322pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/267595pt_BR
dc.description.abstractSea surface temperature (SST) anomalies caused by a warm core eddy (WCE) in the Southwestern Atlantic Ocean (SWA) rendered a crucial influence on modifying the marine atmospheric boundary layer (MABL). During the first cruise to support the Antarctic Modeling and Observation System (ATMOS) project, a WCE that was shed from the Brazil Current was sampled. Apart from traditional meteorological measurements, we used the Eddy Covariance method to directly measure the ocean–atmosphere sensible heat, latent heat, momentum, and carbon dioxide ( CO2) fluxes. The mechanisms of pressure adjustment and vertical mixing that can make the MABL unstable were both identified. The WCE also acted to increase the surface winds and heat fluxes from the ocean to the atmosphere. Oceanic regions at middle and high latitudes are expected to absorb atmospheric CO2, and are thereby considered as sinks, due to their cold waters. Instead, the presence of this WCE in midlatitudes, surrounded by predominantly cold waters, caused the ocean to locally act as a CO2 source. The contribution to the atmosphere was estimated as 0.3 ± 0.04 mmol m− 2 day− 1, averaged over the sampling period. The CO2 transfer velocity coefficient (K) was determined using a quadratic fit and showed an adequate representation of ocean–atmosphere fluxes. The ocean–atmosphere CO2, momentum, and heat fluxes were each closely correlated with the SST. The increase of SST inside the WCE clearly resulted in larger magnitudes of all of the ocean–atmosphere fluxes studied here. This study adds to our understanding of how oceanic mesoscale structures, such as this WCE, affect the overlying atmosphere.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofScientific reports. London. Vol. 11 (2021), 10648, 15 p.pt_BR
dc.rightsOpen Accessen
dc.subjectRedemoinho oceânicopt_BR
dc.subjectDióxido de carbonopt_BR
dc.subjectConfluência Brasil-Malvinaspt_BR
dc.subjectSinótico atmosféricopt_BR
dc.titleOceanic eddy‑induced modifications to air–sea heat and CO2 fluxes in the Brazil‑Malvinas Confluencept_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001167269pt_BR
dc.type.originEstrangeiropt_BR


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