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Universidade de São Paulo (USP). Instituto Oceanográfico (IO) (Institutional affiliation for the last research proposal) Birthplace: Brazil
Ilson Carlos Almeida da SIlveira in research grants and scholarships supported by FAPESP.
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The role of the Vitória-Trindade Ridge in the generation of the Brazil Current sub- and mesoscale activity is proposed to be investigated by both observations and high-resolution numerical modeling. It is known that Brazil Current meanders and forms eddies and vortical dipoles as it crosses the ridge. Smaller eddies (of order of 1 km) and filaments develop in the periphery of the mesoscal…
This project has different purposes within the international research devoted to climate variability and change. The most relevant one is to develop a monitoring array in the South Atlantic, within a broad international partnership, to continue a time series started in 2004, south of Africa, in 2008 in the Drake Passage, and on the eastern and western boundaries of the South Atlantic. The…
A better understanding of coupled atmosphere-ocean interactions has long been recognized as having the most potential to improve prediction climate and weather. The role of these interactions in the Southwestern Atlantic Ocean (SAO), however, is not well understood. The SAO is the birthplace of cyclones, cold fronts passage and blocking activity. Further study is required to understand ho…
(Only some records are available in English at this moment)
The Brazil Current (BC) is the western boundary current that closes the South Atlantic Subtropical Gyre. Between 22æS and 23æS, the BC forms large cyclonic meanders, in particular, off Cape Frio and São Tomé Cape. The system of high vertical shear, formed by the BC and the underlying northward flow of the Intermediate Western Boundary Current (IWBC) are responsible for forming, in this re…
The Southwest Atlantic is one of the most unexplored parts of the world ocean. The Rio Grande Rise (RGR) is located in this region and is the largest Plateau of the South Atlantic, presenting the formation of polymetallic crusts, which arouses political and economic interest in the region. The graben Cruzeiro do Sul Rift (CSR) cuts the RGR from northwest to southeast and presents a unique…
This proposal aims to investigate the variation in volume, heat, and salt transport associated with the western boundary current system: Brazilian Current (CB) and Intermediate Current (CCI) over the southeast Brazilian continental margin between 20æS and 35æS, a wide region where the largest portion of the Brazilian population is found. Transport calculations will be carried out by strat…
(Only some records are available in English at this moment)
This proposal aims to investigate the variation in volume, heat and salt transport associated with the western boundary current system: Brazilian Current (BC) and Intermediate Western Boundary Current (IWBC) over the southeast Brazilian continental margin between 20°S and 31°S, a wide region where the largest portion of the Brazilian population is found. Transport calculations will be car…
This project revisits the wind-driven coastal upwelling system off Cape Frio (23 S) by applying concepts of frontal dynamics. The front established during mature upwelling events is theoretically susceptible to develop submesoscale instabilities. Moreover, a curved geometry found in previous efforts should also have dynamical implications. This proposal aims to investigate the destabiliza…
The Deep Western Boundery Current (DWBC) is an integral part of the MOC (Meridional Overturning Circulation) and is therefore of extreme importance for the transport of heat from the planet and consequently exerts greatinfluence in the understanding of global climate change. The South Atlantic, and particularly the Southwest Atlantic, may be one of the most unexploredportions of the world…
Large-scale circulation in the South Atlantic Ocean is characterized by a large anticyclonic gyre, and the current that limits this gyre to the north is the South Equatorial Current (SEC). When the southern branch of the SEC reaches the Brazilian continental margin, this current bifurcates. The most known patterns regarding of the South Equatorial Current Bifurcation (SECBi) are large sc…
The Brazil Current (BC) flows along the Southeastern Brazil continental margin. Between 20°S and 23°S, the coastline changes direction. Therefore, BC becomes unstable which leads to the formation of large cyclonic meanders, specially off Cape Frio. This region is also characterized by coastal up\-welling during most of the year. The interaction between up\-welling-favorable winds and BC's…
(Only some records are available in English at this moment)
| 9 / 5 | Completed research grants |
| 28 / 14 | Completed scholarships in Brazil |
| 2 / 2 | Ongoing scholarships abroad |
| 7 / 7 | Completed scholarships abroad |
| 46 / 28 | All research grants and scholarships |
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