154= 



Figure 4. --Surface density (sigma-t), H. M. Sm ith cruise 17, 

 September 1952. Contour interval 0.1. 



160° 



159° 



158° 



157° 



156° 



155° 



154° 



23° 



22° 



21° 



20° 



18° 



V 



T — rn — rn — i 

 50 100 



CURRENT SPEED IN CM/SEC 

 AT 2 1 ° N 



160 



60 



30' 



23= 



22° 



21' 



20° 



19° 



18° 



Figure 5. --Dynamic height anomalies (dynamic meters) at the 

 surface relative to 600 m. , H . M. Smith cruise 17, September 

 1952. Contour interval 0.02 dynamic meters. 



34 



