@Article{LessaSVSSTCA:2019:EcExBr,
               author = "Lessa, Douglas V. O. and Santos, Thiago P. and Ven{\^a}ncio, Igor 
                         Martins and Santarosa, Ana Cl{\'a}udia A. and Santos J{\'u}nior, 
                         Edmundo C. dos and Toledo, Felipe A. L. and Costa, Karen B. and 
                         Albuquerque, Ana Luiza S.",
          affiliation = "{Universidade Federal Fluminense (UFF)} and {Universidade Federal 
                         Fluminense (UFF)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Universidade de S{\~a}o Paulo (USP)} and 
                         {Universidade de S{\~a}o Paulo (USP)} and {Universidade de 
                         S{\~a}o Paulo (USP)} and {Universidade de S{\~a}o Paulo (USP)} 
                         and {Universidade Federal Fluminense (UFF)}",
                title = "Eccentricity-induced expansions of Brazilian coastal upwelling 
                         zones",
              journal = "Global and Planetary Change",
                 year = "2019",
               volume = "179",
                pages = "33--42",
                month = "Aug.",
             keywords = "Southwest Atlantic Ocean, Planktonic foraminifera, Pleistocene, 
                         Milankovitch cycles, Paleoceanography.",
             abstract = "Expansions of coastal upwelling spots along the Brazilian coast 
                         were previously reported for Marine Isotope Stage (MIS) 5, but 
                         open questions remain regarding the climatic mechanisms and the 
                         periodicity of such changes. Based on two marine sediment cores, 
                         we provide evidence for multiple intensifications of the upwelling 
                         regime off the Southeast Brazilian margin (SBM) during several 
                         interglacials and highlight the major role of eccentricity as the 
                         responsible forcing. In addition, we show a two-step change in the 
                         upwelling regime across the Mid-Brunhes Event (MBE) and an 
                         increase in the amplitude of upwelling variability after this 
                         climatic transition. Our findings point to substantial 
                         modifications of the upwelling regions during several 
                         glacial-interglacial transitions that probably altered the 
                         regional marine productivity regime and the carbon budget.",
                  doi = "10.1016/j.gloplacha.2019.05.002",
                  url = "http://dx.doi.org/10.1016/j.gloplacha.2019.05.002",
                 issn = "0921-8181",
             language = "en",
           targetfile = "lessa-eccentriciy.pdf",
        urlaccessdate = "27 abr. 2024"
}