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A gyre in oceanography is any large system of rotating ocean currents, particularly those involved with large wind movements. Gyres are caused by the Coriolis effect; planetary vorticity along with horizontal and vertical friction, which determine the circulation patterns from the wind curl (torque).
4. Observe the surface currents generated. On the basis of what you observe, and taking into account the continental boundaries as shown on map, predict the location of gyres in the North Pacific and South Pacific oceans. Record your prediction by removing the dish and drawing arrows showing surface currents on the map. Q. UESTIONS: 1.