. ORANGE R. Fig. 11. Distribution of temperature at a depth of 200 m., survey I, March 1950. To the north of 230 S. the oceanic waters extend in a thin surface-layer apparently pressing towards the coast between 220 and 200 S. Along the coast the cooler water becomes more and more confined, and eventually to the north of 190 S it appears to converge strongly with the very warm offshore waters (> 220 C.) in a series of eddies about 25 miles from the coast. Finally all trace of it disappears in 160 S., where at 15 miles offshore a temperature of 260 C. was recorded. This whole region between
. ORANGE R. Fig. 11. Distribution of temperature at a depth of 200 m., survey I, March 1950. To the north of 230 S. the oceanic waters extend in a thin surface-layer apparently pressing towards the coast between 220 and 200 S. Along the coast the cooler water becomes more and more confined, and eventually to the north of 190 S it appears to converge strongly with the very warm offshore waters (> 220 C.) in a series of eddies about 25 miles from the coast. Finally all trace of it disappears in 160 S., where at 15 miles offshore a temperature of 260 C. was recorded. This whole region between 160 and 190 S. is typical of a convergence region, with very sharp and considerable variations of temperature. Probably the observations demonstrate a compression of the normal convergence between subtropical and tropical surface water, resulting from the presence along the coast of water so abnormally cool for such latitudes. This marked the northern limit of the upwelling region in March 1950.
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
