568 



Basic Principles of the General Oceanic Circulation 



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Fig. 259. Current displacements in the Somali Current at the time of south-west monsoon. 



The southern boundary between the current branches of the South Equatorial 

 Current and the West Wind Drift is again a long convergence line at about 40° S. 

 For its position see Willimzik (1929) and the alternative interpretation by Schott 

 (1925, p. 163). South of the convergence region and especially in higher latitudes the 

 West Wind Drift has a very low constancy corresponding to the variable winds of this 

 region. The non-uniform character in the current is already shown by the rapid decrease 

 in constancy as the number of observations increases. The Antarctic Comergence 

 runs right across this broad current gradually receding from 48° S. in the west to 

 about 54° S. In this area the West Wind Drift flowing east-south-east meets the cold 

 coastal Antarctic water flowing west-north-west and north-west (Willimzik, 1927). 



(d) Sea Surface Currents in the Pacific Ocean 



The principal currents of the Pacific are again the North and South Equatorial 

 Current. Because of the great width of the Pacific they are almost purely east-west 



