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Modeliranje razlitja nafte po metodi trajektorij: primerjava z metodo sledenja delcev
  • Tadej
Tadej

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Abstract

Oil spills in the marine environment cannot be prevented entirely. In order to diminish their consequences, numerous oil spreading and weathering models have been developed. The NAFTA3d model is based on the particle tracking method, its results are oil concentrations at specified times. A new module based on the trajectory method showing the probability of oil slick occurrence was added to the model. The thesis first describes theoretical background of mathematical oil spill modelling in the marine environment as wall as the course and demands of an oil spill response. We show possible upgrades of the trajectory model. The second part describes both methods and functioning of the model. A graphic printout automation program developed in the scope of the thesis is presented. In the third part we present the results of performed simulations and analyse the suitability of the trajectory method by comparing concentrations and trajectories in the Gulf of Trieste and in the Northern Adriatic. We depict the strengths and weaknesses of the trajectory method. The study reveals that the new module is most suitable for oil spill response modelling, its major advantages being high computational speed as well as simple and efficient presentation of the entire area at risk on a single map. Finally, we propose a procedure for practical use of the trajectory method.