English: "a–f, Average surface oil concentration of 1,000 simulated spills in the winter (a,b,c) and in the summer (d,e,f). Columns denote progress of the 1,000 spills after one week (a,d), two weeks (b,e) and three weeks (c,f). Coloured contours represent percentiles of average surface concentration over 1,000 simulated spills and can be interpreted as the expected surface concentration relative to other grid cells in the exposed area. Shaded region represents the area within which approximately 90% of spill trajectories are expected to fall. Blue dots represent desalination plants."