Combining of a Probability Wind Field and a Hydrodynamic Model to Prepare a Risk Map Investigating Environmental Contaminants

Local wind is recognized as the principal driving force to simulate the trajectory of contaminantsover the sea. The wind field is determined by a Weibull probability distribution to adjust the prevailing wind verified by field data. To estimate the parameters of Weibull distribution، the least-squares approach is used. The wind field is combined with the water dynamic field to determine oil drift on the sea surface. The model is used to simulate the trajectory and fate of contaminantsin a simple and speedy procedure for the Persian Gulf using random walk technique. Comparison of the actual and simulated contaminantssuch as oil spill drift was found acceptable in the domain in order to generate large amount of results preparing risk map analysis.