Interannual variability of the meridional transports across the SAMOC basin-wide array (SAMBAR)

• Grant number: 17/09659-6
• Support type: Research Projects - Thematic Grants
• Duration: December 01, 2017 - November 30, 2022
• Field of knowledge: Physical Sciences and Mathematics - Oceanography
• Principal Investigator: Edmo José Dias Campos
• Grantee: Edmo José Dias Campos
• Home Institution: Instituto Oceanográfico (IO). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Co-Principal Investigators: Elisabete de Santis Braga da Graça Saraiva ; Tercio Ambrizzi
• Assoc. researchers: Alberto Piola ; Carlos Alessandre Domingos Lentini ; Carlos Augusto de Sampaio França ; Carlos Eduardo Peres Teixeira ; Christopher Meinen ; Daniel Valla ; David Smeed ; Elaine Mcdonagh ; Elisabete de Santis Braga da Graça Saraiva ; Evgeny Morozov ; Fabrício Sanguinetti Cruz de Oliveira ; Hosmay Lopez ; Humberto Marotta Ribeiro ; Isabelle Ansorge ; Johannes Karstensen ; José Luis Pelegrí Llopart ; Leticia Cotrim da Cunha ; Luis Antônio Lacerda Aímola ; Luiz Drude de Lacerda ; Lynne Talley ; Marcelo Barreiro ; Maria Paz Chidichimo ; Mathias Campos van Caspel ; Mauro Cirano ; Olga Tiemi Sato ; Paola Maria Castellano Ossa Fernandes ; Paulo Nobre ; Paulo Simionatto Polito ; Peter Brandt ; Peter Zavialov ; Raul Alfredo Guerrero ; Regina Rodrigues Rodrigues ; Reindert Haarsma ; Renellys C. Perez ; Ricardo Matano ; Rodrigo Kerr Duarte Pereira ; Sabrina Speich ; Shenfu Dong ; Silvia Lucia Garzoli ; Sybren Drijfhout ; Tarron-Ann Lamont ; Tercio Ambrizzi ; Wilton Zumpichiatti Arruda
• Associated scholarship(s): 18/09823-3 - A study of the impacts of changes in the South Atlantic circulation on climate based on the analyses of observations and numerical models, BP.PD; 18/06806-0 - Changes in the variability modes of the South Atlantic Ocean and impacts on the climate of South America under of climate change, BP.DR; 17/25110-4 - Investigation of the physical process associated with the impacts of the South Atlantic Dipole in the South America, BP.PD; 17/23133-7 - Interannual variability of the South Atlantic subtropical mode water associated to remote climate patterns, BP.IC

Abstract

The proposed research aims at a better understanding of the interannual variability of the heat content and meridional transports across 34.5S, a zonal section referred as SAMBA (the South Atlantic Meridional Overturning Circulation (SAMOC) Basin-wide Array). It will investigate impacts of global changes on the ocean and the feedback of changes in the South Atlantic Circulation on the Regional Climate and on the stability of the Meridional Overturning Circulation (MOC). For reaching the objectives, the activities will include: the acquisition of instruments and their deployment in the South Atlantic; the conduction of annual cruises to deploy, to service and to perform data telemetry of data stored in moored instruments; to conduct hydrographic surveys of physical and biochemical properties of the water column; the data mining of ancillary data and the analysis of observations and results of numerical experiments. The results will contribute for a better understanding of the climate, in regional and global scales, and to more immediate societal benefits and economic impacts, as the Brazilian coastal regions are exposed and highly vulnerable to changes in the Atlantic circulation. Slight changes in currents and thermodynamic properties can have dramatic impacts on the regional climate, on the sea level height, on coastal geomorphology and on the coastal ecosystems. The better knowledge of the large-scale processes in the South Atlantic is essential for the proper design of coastal observing systems and most effective policies for understanding the impacts of climate changes, for actions for mitigation, adaptation and protection of the environment. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

HALL, NICHOLAS M. J.; LEROUX, STEPHANIE; AMBRIZZI, TERCIO. Transient contributions to the forcing of the atmospheric annual cycle: A diagnostic study with the DREAM model. Climate Dynamics, v. 52, n. 11, p. 6719-6733, JUN 2019. Web of Science Citations: 0.

CASTELLANOS, PAOLA; OLMEDO, ESTRELLA; LLUIS PELEGRI, JOSEP; TURIEL, ANTONIO; CAMPOS, EDMO J. D. Seasonal Variability of Retroflection Structures and Transports in the Atlantic Ocean as Inferred from Satellite-Derived Salinity Maps. REMOTE SENSING, v. 11, n. 7 APR 1 2019. Web of Science Citations: 0.

MEINEN, CHRISTOPHER S.; SPEICH, SABRINA; PIOLA, ALBERTO R.; ANSORGE, ISABELLE; CAMPOS, EDMO; KERSALE, MARION; TERRE, THIERRY; CHIDICHIMO, MARIA PAZ; LAMONT, TARRON; SATO, OLGA T.; PEREZ, RENELLYS C.; VALLA, DANIEL; VAN DEN BERG, MARCEL; LE HENAFF, MATTHIEU; DONG, SHENFU; GARZOLI, SILVIA L. Meridional Overturning Circulation Transport Variability at 34.5 degrees S During 2009-2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries. Geophysical Research Letters, v. 45, n. 9, p. 4180-4188, MAY 16 2018. Web of Science Citations: 4.