Journal article

Oceanic eddy-induced modifications to air-sea heat and CO2 fluxes in the Brazil-Malvinas Confluence

Luciano P Pezzi, Ronald B de Souza, Marcelo F Santini, Arthur J Miller, Jonas T Carvalho, Claudia K Parise, Mario F Quadro, Eliana B Rosa, Flavio Justino, Ueslei A Sutil, Mylene J Cabrera, Alexander V Babanin, Joey Voermans, Ernani L Nascimento, Rita CM Alves, Gabriel B Munchow, Joel Rubert



Sea 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 t..

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Awarded by Antarctic Modeling and Observation System

Awarded by National Institute for Science and Technology of the Cryosphere (CNPq)

Awarded by CNPq Scientific Productivity Fellowship

Awarded by National Science Foundation

Funding Acknowledgements

This research was funded by the Brazilian agencies CNPq, CAPES, FINEP and FAPERGS through the following projects: (i) Antarctic Modeling and Observation System (CNPq/PROANTAR 443013/2018-7). (ii) National Institute for Science and Technology of the Cryosphere (CNPq 704222/2009 + FAPERGS 17/2551-0000518-0); (iii) Polar Marine Meteorological Laboratory (FINEP); L.P.P. is partly funded through a CNPq Scientific Productivity Fellowship (CNPq/304858/2019-6). AJM was partly supported by the National Science Foundation (OCE-2022868).