Figure 1. Main mesoscale and larger features of circulation in the upper ocean layers of the region connecting the Indian and Atlantic Oceans. A = an Agulhas ring, recently shed from the Agulhas Retroflection (E), being encircled by an Agulhas filament; B = Agulhas rings drifting off into the South Atlantic; C = a cyclonic eddy forming part of a well-developed Natal Pulse on the Agulhas Current, causing an upstream retroflection (D) at the Agulhas Plateau. Solid circles = Leg 175 drill sites; open arrows = the large-scale, general background circulation of the subtropical gyres. From Lutjeharms (1996).

Figure 1. Main mesoscale and larger features of circulation in the upper ocean layers of the region connecting the Indian and Atlantic Oceans. A = an Agulhas ring, recently shed from the Agulhas Retroflection (E), being encircled by an Agulhas filament; B = Agulhas rings drifting off into the South Atlantic; C = a cyclonic eddy forming part of a well-developed Natal Pulse on the Agulhas Current, causing an upstream retroflection (D) at the Agulhas Plateau. Solid circles = Leg 175 drill sites; open arrows = the large-scale, general background circulation of the subtropical gyres. From Lutjeharms (1996).