2 3°00'N. 



2 2 "45 N 



23 00 N. 



109° 30 W. 



22°45 N. 



Figure 13. — Surface currents based on nine GEK measurements made on 21 April 1961. Currents are shown vectorially, 

 the number above the vector being the velocity in cm. sec."\ that below being the bearing in OT. Superimposed are 

 the track ( ) and surface isotherms ( , ° C.) from the thermograph records. 



20 



