Ilson Carlos Almeida da SIlveira in research grants and scholarships supported by FAPESP.
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The "offshore of tomorrow" is being defined in our generation. Awaken by climate change, we were made aware that the exploration of fossil fuels for the sole use of thermal energy cannot be sustainable in the distant future. The effect humanity has played in changing the climate of the planet by the emission of greenhouse gases is a pressing agenda for many, if not all, countries committe…
The Brazil Current (BC) develops large meanders, which often turn into vortical rings as it flows off the Santos Basin shelf break. The most conspicuous and recurrent of these is the Cabo Frio Eddy (CFE), formed in the east area of the cape that gives it its name, and which marks a strong change in orientation on the south east continental margin. For this reason, and linked to the conser…
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…
(Only some records are available in English at this moment)
The present proposal aims to characterize the Brazil Current Inner Recirculation Cell and investigate it's possible wind-driven forcing. In order to it's morphometry, volume transport and seasonality can be inferred the following datasets will be used: multi satellite altimetry data and assimilative numerical reanalysis data referred to the south portion of BC (25ºS-45ºS). The volume tran…
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)
The present proposal aims to identify the mean dynamic forcing mechanism of the Inner Recirculation Cell (IRC) of Brazil Current. In order to understand if it's inertial or forced by the wind three major experiments will be conducted, all using a numerical model that solves the quasi-geostrophic vorticity equation in a 1 1/2 layer configuration. The first experiment will be running using …
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…
(Only some records are available in English at this moment)
| 2 / 2 | Ongoing research grants |
| 8 / 4 | Completed research grants |
| 1 / 1 | Ongoing scholarships in Brazil |
| 28 / 14 | Completed scholarships in Brazil |
| 10 / 10 | Completed scholarships abroad |
| 50 / 32 | All research grants and scholarships |
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