DAVIS STRAIT AND LABRADOR SEA 

 70 70 60 50 



89 



60 60 



Figure 52. — Temperature at surface July 19-September 11, 1928. 



edge largely relegates the drift of that pack ice which eventually 

 gets south of Newfoundland, to the shelf band of the current. Ice- 

 bergs, on the other hand, capable of surviving in relatively warm 

 water for much longer periods than pack ice constitute a greater 

 menace to the North Atlantic shipping lanes because of the velocity of 

 the slope band of the Labrador Current. 



