260 



WOOSTKK AND UK ID 



[CHAP. 1 1 



Transports of the various eastern boundary currents have been calculated 

 from available hydrographic data (Table I). Choice of the reference level below 

 1000 db seems to make little difference to the final computed values. Offshore 

 stations for the calculation were selected from consideration of the offshore in- 

 crease in geopotential anomaly and were usually the stations where the sea 

 surface reached a more or less steady level (at about 1000 km offshore). The 

 data are too scarce to permit meaningful comparison of the several currents. 

 They show that the average transport is of the order of 15 x 10 6 m 3 /sec, less 

 than a third of the transports of the western boundary currents. 



Table I 

 Mass Transport and Change in Steric Level 



Transport: 10.1 to 19.0 x 10 6 m 3 /sec. 

 A level : 24 to 46 cm, A = 34 cm. 



D. Sub-surface Characteristics 



The sub-surface distributions of properties of the various eastern boundary 

 currents are shown in a series of profiles roughly normal to the coasts (Figs. 

 6-11). The following features are noteworthy: 



