Dynamic heights; Figures 4, 11, 14, 20;, and 26 show 

 the smoothed profiles of isobaric surfaces with respect to the 1, 000- 

 decibar surface,, The dots represent the actual results of dynamic 

 computations and are plotted to show what liberties with the data 

 have been taken in the smoothing process, 



Geostrophiccurrents; The relative currents, figures 5, 

 12, 15, 21, and 27, were computed from the smoothed profiles shown 

 in figures 4, 11, 14, 20, and 26 respectively,, The isovels indicate 

 the component of geostrophic flow perpendicular to the plane of the 

 cross section,, They are not drawn between the 3-1/2° parallels be- 

 cause flow close to the Equator is not even approximately geostrophic 

 East currents are hatched,, 



The cross sections exhibit a complicated arrangement of 

 zonal components of currents,, There is some uncertainty in the 

 existence of the lesser flows, particularly in the narrow currents 

 that are based on only two or three stations,, It is apparent, however, 

 that there are appreciable regions of easterly flow existing outside 

 the bounds of the Equatorial Countercurrent 



Table I is included to aid in identifying the currents that 

 appear in the figures and to summarize pertinent information about 

 them The positions to the nearest one-half degree of latitude of the 

 surface boundaries of the Equatorial Counter cur rent were read from 

 the figures of dynamic height,, The number listed under "Core of 

 Countercurrent" is the latitude of the maximum speed through the 

 plane of the traverse as read from the figures showing geostrophic 

 current. Values within parentheses are uncertain,, 



Table I 



Referring to figures 11 and 12, for example j the east-flowing 

 Equatorial Countercurrent appears between 5 N„ and 9 N c , with 

 the North Equatorial Current immediately adjacent to the north c 

 South of the southern boundary of the Countercurrent there is a 



