Figure B2. Velocity streamlines (red) and 30 day particle trajectories (black) for the winter near-surface (0-5 m) flow field. The black dots are the initial positions for the particle trajectories. The flow is approximately parallel to the streamlines. The direction of the flow in the vicinity of Georges Bank is shown by the particle trajectories. The streamlines give an approximate picture of the flow pathways. Notice that the particle that starts inside the closed area in Georges Basin crosses the streamline and gets onto Georges Bank. Also some of the trajectories in Fig. 1 do not exactly follow the streamlines. However the streamlines are a reasonable representation of the overall patterns seen in Fig. B1.