Presentation
Deep-water Oil Spill reaching coastal environments: Modeling the fate in Estuarine Areas – A Brazilian Case Study
SessionMeet the Poster Authors
DescriptionBrazil's extensive coastline boasts a variety of coastal environments with different sediment supply and geologic heritage. The area of interest is the continental shelf off the coast of central Brazil, which is unusually narrow (~20 km). The shelf break is situated between the 45 and 50 m isobaths. This region is also adjacent to oil basins, such as the Jequitinhonha and Camamu-Almada. Despite petroleum activities being focused on deep areas of the basins, accidents involving oil spill can easily affect sensitive coastal areas due to the narrow and steep continental shelf.
The estuarine region of Tinharé and Boipeba, located in the Southern Bahia State Coast (Brazil), is home to valuable ecosystems associated with coral reefs and mangroves. These ecosystems are highly vulnerable to oil toxicity and can be further damaged by cleanup activities. Thus, this poster aims to present a case study on the numerical modeling of hypothetical oil spill scenarios in deep waters of the Jequitinhonha basin and the pattern of spreading and circulation of the oil from mesoscale into local scale estuarine regions, presenting subsidies to evaluation of contingency and response plans.
Probabilistic oil spill simulations were carried out using the OSCAR (Oil Spill Contingency and Response) model, synoptic wind data from the NCEP Reanalysis, mesoscale hydrodynamic data simulated by the ROMS (Regional Ocean Modeling System), with resolution of ~4.5 km and current fields from a local domain, carried out with the use of Delft3D-FLOW Hydrodynamic Model with resolution of ~45 m.
The estuarine region of Tinharé and Boipeba, located in the Southern Bahia State Coast (Brazil), is home to valuable ecosystems associated with coral reefs and mangroves. These ecosystems are highly vulnerable to oil toxicity and can be further damaged by cleanup activities. Thus, this poster aims to present a case study on the numerical modeling of hypothetical oil spill scenarios in deep waters of the Jequitinhonha basin and the pattern of spreading and circulation of the oil from mesoscale into local scale estuarine regions, presenting subsidies to evaluation of contingency and response plans.
Probabilistic oil spill simulations were carried out using the OSCAR (Oil Spill Contingency and Response) model, synoptic wind data from the NCEP Reanalysis, mesoscale hydrodynamic data simulated by the ROMS (Regional Ocean Modeling System), with resolution of ~4.5 km and current fields from a local domain, carried out with the use of Delft3D-FLOW Hydrodynamic Model with resolution of ~45 m.
Authors
Event Type
Poster
TimeMonday, May 13th5:00pm - 6:00pm CDT
LocationExhibit Hall G
Preparedness
Prevention
Remediation
Response
Restoration