Scholarship 14/00973-1 - Correntes oceânicas - BV FAPESP
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The impact of the Brazil Current thickening on instability processes (23-30S)

Grant number: 14/00973-1
Support Opportunities:Scholarships abroad - Research Internship - Master's degree
Start date until: May 24, 2014
End date until: November 23, 2014
Field of knowledge:Physical Sciences and Mathematics - Oceanography - Physical Oceanography
Principal Investigator:Ilson Carlos Almeida da SIlveira
Grantee:Tiago Carrilho Biló
Supervisor: Glenn R. Flierl
Host Institution: Instituto Oceanográfico (IO). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Institution abroad: Massachusetts Institute of Technology (MIT), United States  
Associated to the scholarship:13/10475-6 - Santos Bifurcation Three-dimensional Structure and Dynamical Consequences (23-30S), BP.MS

Abstract

The Brazil Current (BC) is the western boundary current of the South Atlantic Subtropical Gyre. As it flows south/southwestward over the southeast Brazilian continental slope the BC experiences important downstream changes. Between 25S and 27S, the South Equatorial Current bifurcation occurs at intermediate depths (600-1800 m). The so-called Santos Bifurcation separates the BC in two different flow regimes: the nothern part comprises a current which is 500 m thick; the southern part the BC is 1200 m thick. In this work we propose to investigate the impact of downstream changes in the BC intability processes. We aim to address this problem using a linear instability sectional numerical model and top-bottom velocity observations. (AU)

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