Analysis of Two Oil Spills in the Southern Brazilian Shelf, in the Years of 2012 and 2014
Numerical models have been widely used to simulate and predict the behavior and transport of oil spills in marine environments. Their behavior is governed by physical, chemical and biological processes which are related to the hydrocarbon properties, hydrodynamic and weather conditions, and other environmental variables. The transport and interactions of oil particles were evaluated in simulations reproducing two oil spills recorded in the northern part of the Southern Brazilian Shelf (SBS). The numerical simulations were performed using the ECOS (Easy Coupling Oil System) model coupled to the three-dimensional hydrodynamic module TELEMAC3D. The hydrodynamic model provides the variables needed by oil spill model to calculate and infer the properties and behavior of the oil slick. The results indicate that the local wind forcing is the most important factor in determining the oil fate, followed by the intensities and directions of coastal currents. Regarding the events, in 2012 the oil reached the coast after 10 hours of the leak while in 2014 it was transported towards the ocean. The simulation strategy used in this article did not prove to be appropriate for estimates of the oil risk in the region, due to the distinct susceptibility responses between the events simulated.
Antonio F. Miguel, Luiz Alberto Oliveira Rocha and Prof. Andreas Öchsner
C. B. Monteiro et al., "Analysis of Two Oil Spills in the Southern Brazilian Shelf, in the Years of 2012 and 2014", Defect and Diffusion Forum, Vol. 372, pp. 70-80, 2016