@Article{SantosSNVCPBLCNCKBA:2022:DaPeBr,
               author = "Santos, Thiago P. and Shimizu, Mar{\'{\i}}lia Harumi and 
                         Nascimento, Rodrigo A. and Venancio, Igor M. and Campos, 
                         Mar{\'{\i}}lia C. and Portilho Ramos, Rodrigo C. and Ballalai, 
                         Jo{\~a}o M. and Lessa, Douglas O. and Crivellari, Stefano and 
                         Nagai, Renata H. and Chiessi, Cristiano M. and Kuhnert, Henning 
                         and Bahr, Andr{\'e} and Albuquerque, Ana Luiza S.",
          affiliation = "{Universidade Federal Fluminense (UFF)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Universidade Federal Fluminense 
                         (UFF)} and {Universidade Federal Fluminense (UFF)} and 
                         {Universidade de S{\~a}o Paulo (USP)} and {University of Bremen} 
                         and {Universidade Federal Fluminense (UFF)} and {Universidade 
                         Federal Fluminense (UFF)} and {Universidade de S{\~a}o Paulo 
                         (USP)} and {Universidade Federal do Paran{\'a} (UFPR)} and 
                         {Universidade de S{\~a}o Paulo (USP)} and {University of Bremen} 
                         and {Heidelberg University} and {Universidade Federal Fluminense 
                         (UFF)}",
                title = "A data-model perspective on the Brazilian margin surface warming 
                         from the Last Glacial Maximum to the Holocene",
              journal = "Quaternary Science Reviews",
                 year = "2022",
               volume = "286",
                pages = "e107557",
                month = "June",
             keywords = "Atlantic meridional overturning circulation, Bipolar seesaw, 
                         Brazil Current, Last deglaciation, North, Western south 
                         atlantic.",
             abstract = "The western South Atlantic along the Brazilian margin is an 
                         important region for the Atlantic Meridional Overturning 
                         Circulation (AMOC) because surface currents in this area transfer 
                         warm and salty waters from the Southern Hemisphere to the North 
                         Atlantic. Although the number of sea surface temperature (SST) 
                         reconstructions has grown in this region, it has been challenging 
                         to explain changes in different and sometimes proximal cores. To 
                         understand the SST evolution of the Brazilian margin from the Last 
                         Glacial Maximum (LGM) to the late Holocene, we present the first 
                         SST stack (BRSST stack) for this region. We compare the BRSST 
                         stack with the outputs of the transient climate model simulation 
                         TraCE-21ka. The BRSST stack shows an LGM cooling of 1.43 °C (from 
                         \−1.31 to \−1.55 °C, 2\σ) relative to the late 
                         Holocene, followed by deglacial warming starting at \∼ 18.8 
                         ka. TraCE-21ka simulates this early onset of the last 
                         deglaciation. Sensitivity experiments suggest that the input of 
                         meltwater from retreating ice sheets in the Northern Hemisphere 
                         triggered the post-LGM warming, which was subsequently sustained 
                         by increasing atmospheric CO2. Deglacial millennial-scale events 
                         of AMOC slowdown produced large-scale warming of the Brazilian 
                         margin not clearly distinguished by some previous studies. 
                         Analyzing our stack in its segregated components, i.e., the North 
                         Brazil Current (NBCSST stack) and Brazil Current (BCSST stack) we 
                         noted in-phase warming at the onset of the last deglaciation, 
                         which is not found in TraCE-21ka simulations. We attributed this 
                         to underestimating the meltwater influence over the tropical 
                         Brazilian margin by the model. BRSST stack also presents episodes 
                         of abrupt cooling near periods of fast sea-level rise during the 
                         last deglaciation, which may be due to rapid AMOC reinvigoration 
                         or freshening of the Southern Ocean. Holocene climate resembles 
                         that recorded by other compilations, with no clear Holocene 
                         thermal maximum but presenting a cooling trend during the late 
                         Holocene possibly related to intensified volcanic activity. Our 
                         study indicates that the future human-induced SST change expected 
                         for the end of the 21st-century will overcome the background of 
                         natural climate variability of the last 22,000 years for the 
                         Brazilian margin.",
                  doi = "10.1016/j.quascirev.2022.107557",
                  url = "http://dx.doi.org/10.1016/j.quascirev.2022.107557",
                 issn = "0277-3791",
             language = "en",
           targetfile = "Santos_2022_data.pdf",
        urlaccessdate = "06 jun. 2024"
}