Fig. 2

Ocean current configurations: (a) single-vortex system with clockwise rotation; (b) dual-vortex system with counter-rotating vortices. Streamlines indicate flow direction, and color intensity corresponds to current speed (m/s).

Ocean current configurations: (a) single-vortex system with clockwise rotation; (b) dual-vortex system with counter-rotating vortices. Streamlines indicate flow direction, and color intensity corresponds to current speed (m/s).