tively. As in the previous case the only identi- 

 fiable periodic component was the lunar 

 semidiurnal tide. In this instance harmonic 

 analysis indicated that there was less, than 1% 

 probability for both the normal and tangential 

 components that the harmonic coefficients could 

 have been generated by random data. 



The low frequency fluctuations of the current 

 for both meters were compared with the surface 

 wind field. However, no clear relationship be- 

 tween tlie winds and the currents at these depths 

 was found. 



Surface currents computed for this period in 

 the Labrador Cui'rent by the geostrophic method 

 ranged from about 15 cm S"' up to 60 cm s^ south- 

 ward. This compares with a mean current at 



depth of from 3.4 to 5.3 cm s-^ for the April-May 

 and May-June data respectively with values run- 

 ning as high as 25 cm s"^ for an instantaneous 

 current. The current except in two cases was 

 always southward along the slope. The direct 

 current measurements were compared with geo- 

 strophic calculations of the current from nearby 

 stations and at the depth of the current meters. 

 When the differences between the two methods of 

 current measurement were added to the surface 

 current, the geostrophic values averaged 10% to 

 30% less than would be indicated by the directly 

 measured current. Therefore, the geostrophic 

 current calculations in the Labrador should be 

 considered as minimums with the actual speeds 

 being 10%-30% higher. 



