The two drifters shown in Figure 2 were deployed in May 1995. After reaching the Pribilof Islands, the buoys were entrained into the flow around the islands. One drifter circled St. Paul and then continued northward. The second drifter circled both islands and then re-entered the Bering Slope Current.
Tidal loops are clearly evident in the trajectories.
In 1993, a satellite-tracked buoy was deployed on the Bering Sea shelf south of the Pribilof Islands. It was transported northwestward to the vicinity of St. George Island where it circled the island seven times in 60 days before it lost its drogue. One period of consistent clockwise circulation is shown in Figure 3 . Diurnal tidal ellipses are evident although very small. For the entire Bering Sea a spherical system of coordinates is used.