I. INTRODUCTION 



Between Ik March and $ May 195 3 the USS PURSUIT made a current 

 survey in the northern Caribbean area bounded by Cuba, Hispaniola, 

 and Jamaica, The survey. consisted of 21 oceanographic stations 

 (numbers 13-21, 33-k2> U9 and 50) 1 and 50 Geomagnetic Electrokine- 

 to graph (GEK) observations. In support of this survey the USS SAN 

 PABLO took 3 anchor stations and 69 GEK observations in the area 

 during the period 29 May to 9 June 1953. The RV ATLANTIS (Woods 

 Hole Oceanographic Institution research vessel) also took 116 GEK 

 observations in the area between 18 March and 13 April 1953. 



Dynamic height anomalies were computed from the oceanographic 

 station data. Current patterns determined from dynamic topography 

 are shown for the surface, 100-, 500-, and 1,000-meter levels 

 relative to a reference level of 1,200 meters (figs. 1-U). The 

 figures, with the exception of Windward Passage, show little change 

 in the current pattern of horizontal flow to a depth of 1,000 meters, 

 The current pattern at the surface with reference to U00 meters 

 (where comparatively stable conditions were found) is shown in 

 figure 5. A comparison of figures 1 and 5 shows that the greatest 

 changes take place within the upper U00 meters. 



Fig. 1. Current pattern at surface determined from dynamic topography relative to T, 200-meter level 



1 Station data are available at the U. S. Navy Hydrographic Office. 



