Interannual Variability of the Meridional Transports across the SAMOC Basin-wide Array (SAMBAR)
Projeto SAMBAR: um projeto de colaboração internacional, liderado pela Universidade de São Paulo, com o objetivo de entender os aspectos da variabilidade da circulação oceânica e da biogeoquímica marinha no oceano Atlântico Sul
Coordenador: Prof. Edmo Campos
Coordenador Adjunto: -
Financiamento: FAPESP
*A equipe do CARBON Team colabora com as ações e atividades do projeto.
Projeto encerrado em Dezembro de 2022
Logotipo do Cruzeiro
Resumo: he meridional overturning circulation (MOC) is a primary mechanism for the transport and storage of heat, freshwater, oxygen and carbon by the ocean, with a large impact on climate and its variability. Changes in the MOC have been linked to past climate variations in geological periods. The MOC and the deep ocean circulation also contribute to climate variability on shorter timescales. An important component of the MOC in the Atlantic (AMOC) is the import of warm and salty waters from the Indian Ocean into de Atlantic, known as the Agulhas leakage. Recent studies show that the Agulhas leakage may be increasing in response to anthropogenic climate change. It is natural to assume that the increasing leakage will affect the AMOC, in addition to the expected weakening associated with global warming and ice melt in Greenland and the Arctic region. The South Atlantic Meridional Overturning Circulation (SAMOC) program started in 2007, as an international cooperation among institutions from Brazil, Argentina, South Africa, the USA, France, the UK, Germany and other European countries. SAMOC is endorsed by CLIVAR and is being coordinated within the framework of the European Union H2020 project AtlantOS and the Brazilian National Institute of Science and Technology (INCT) Mar-COI. The initial stages of SAMOC were conducted as part of Project SAM, funded by the U.S. NOAA in cooperation with Argentina and Brazil. The Brazilian contribution is a component of the GOOS-Brazil Program and since 2011 has been funded by the São Paulo State funding foundation (FAPESP) through Projects SAMOC-BR (grant 2011/50552-4, 2011?2016) and SAMBAR (grant 2017/09659-6, 2017?2022). So far, SAMOC produced the first dedicated continuous daily time series of the AMOC strength in the South Atlantic. SAMBAR is a new contribution to SAMOC aiming at a better understanding of the interannual variability of the heat content and meridional transports across the SAMOC Basin-wide Array (SAMBA) and the impacts on the South Atlantic Circulation, on the Regional Climate and on the MOC stability. SAMBAR will maintain and enhance the existing observing array with the deployment of new instruments and the conduction of oceanographic cruises (Fig. 1). The planned research, which also includes data analyses and numerical modeling, will be carried out through a synergistic collaboration amongst a large team of first-class international scientists.