DAVIS STRAIT AND LABRADOR SEA 



131 



southward in the North Atlantic as far west as the fiftieth meridian, 

 and this band of current is traceable downstream even to the region 

 of Bermuda. Rarely icebergs discharged at the southernmost turn- 

 ing point of the Labrador Current may be caught in the above stream 

 and carried great distances south and west in the North Atlantic 

 Ocean. 



50 



45 



_ 40 



35 



55 



50 



45 



Figure 93. — The surface currents south of the Grand Banks. 



In tliis connection the marked branching of the Gulf Stream on 

 reaching the longitude of the Grand Banks, and the further dis- 

 tribution of its waters as Atlantic Current, has been computed from 

 the few existing subsurface observations, as follows : 



Atlantic Cm-rent 



mVs X 10-8 



Northern branch which enters Labrador Sea 14.4 



Southern branch which turns along mid-Atlantic Ridge 15.8 



Middle branch which continues eastward 10.1 



Volume of the Gulf Stream crossing fiftieth meridian 40. 3 



