Figure 4

Figure 4: Velocities and corresponding thermal imagery from the East Australian Current show the formation of alternating cyclonic and anticyclonic circulations. Velocities at 153°E and 34°S (red circle) are southward on April 24 (a). A region of northward flow on the seaward edge of the warm feature moves towards the coast, turning the flow northward at the red circle by June 13 (b). Several hundred kilometres seaward the currents are turning southward and will arrive at 153°E 34°S in approximately another 50 days, completing the cycle.