Observations made between January and April along the southwest 
African coast showed winds to be northerly or calm and little evidence 
of upwelling. During July, winds were southeabterly with marked 
upwelling, which reached a maximum in August or September. Upwelling 
is most conspicuous off the southern part of the African coast, where 
the water moves north or northwest; the current diminishes rapidly in speed 
northward to about 17°S and becomes increasingly variable in direction. 
Upwelling reaches to depths of 180 to 350 meters (591 to 1,148 feet) at 
28°30'S, 200 to 300 meters (656 to 984 feet) at 25°00'S, 200 to 230 
meters (656 to 755 feet) at 23°00'S, and 220 meters (722 feet) at 
19°45'S. 
Subsurface current data are scarce. Figures 8 and 9 show indirect 
and direct measurements, respectively, in the south and north portions 
of the current. Counterflows evidently underlie the main surface current. 
Dynamic topography at 50 meters(164 feet) relative to 250 meters (820 feet) 
shows an east set at 0.5 to 0.8 knot in the vicinity of 4°S, 3°E. 
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