The video (below) shows computer simulations of one possible scenario for the fate of the Gulf of Mexico's oil catastrophe over the course of a year. In the model, 5 million buoyant particles are released continuously from April 20 to September 17 from the Deepwater Horizon rig. What's really interesting is what you might call the Gulf Stream Whiplash Effect. The highlights, or rather lowlights of the findings:
The explanantion behind the model:
The animation shows the calculated surface particle concentrations for grid boxes about 10-km-by-10-km in size into April 2011. For an estimated flow of oil from the Deepwater Horizon of 50,000 barrels per day over a 150 day period, a concentration of ~10 particles per grid box in the animation corresponds roughly to an oil volume of 2 cubic meters per 100 square kilometers.
The dispersal model doesn't capture the real-world stuff that oil does, like coagulate, form tar balls, and get broken down over time by chemical and microbial degradation. Therefore surface concentrations relative to the actual spill may be overestimated. Or not. Seeing there might be more than 50,000 barrels a day being released. At any rate, the animation is designed not as a specific prediction but as a scenario to guide research and mitigation efforts.