ley at this time, but few, if any, will normally survive to the Grand 

 Banks. North of Bylot Island and in the eastern half of Baffin Bay, 

 bergs probably become progressively more numerous as the iceberg 

 glaciers are approached. The majority of the bergs north and east 

 of Bylot Island in early November that will eventually enter the 

 Baffinland Current will do so too late and will probably perish along 

 the way prior to arrival at the Grand Banks. Numerous bergs perish 

 in the waters off Labrador in summer and autumn. 



2. It is now believed that bergs north of Cape Dyer in early Novem- 

 ber can normally make it to the Grand Banks by late March or early 

 April in lieu of late April as concluded in 1963. 



3. It was concluded in 1963 that average berg drift was normally 

 slower along the Baffin Island coast than along the Labrador coast. 

 This conclusion is not supported by 1964 data, at least not for south- 

 east Baffin Island. 



4. There is a greater survival of the berg crop during the winter to 

 south of 48° N. under normal conditions than concluded in 1963. In 

 1963 it was concluded that 25 percent of the bergs located from Cape 

 Chidley to Cape Dyer in early November and 30 percent of the bergs 

 south of Cape Chidley in mid-March would normally drift south of 

 48° N. It is now concluded that 40 percent of those bergs located 

 south of Cape Dyer and 20 percent of those bergs between Cape Dyer 

 and Cape Christian in early December will drift south of 48° N. 



5. The permanent stranding of the berg crop along the Labrador 

 coast in winter and early spring is concluded not as significant as 

 believed in 1963. 



6. The 1963 conclusions of a normal berg supply upstream in the 

 winter was too high. It is believed that deterioration of the berg 

 crop is normally significant until early December. Thus an estima- 

 tion of a normal supply of bergs is more meaningful in early Decem- 

 ber than in November. It is now concluded that an annual supply 

 of the next year's Grand Banks berg crop as of early December is 

 about 700 bergs between 58° N. and Cape Dyer and 550 bergs between 

 Cape Dyer and Cape Christian for a total of 1,250 bergs with at least 

 two-thirds of the crop medium and large bergs. 



The discrepancies of the 1963 conclusions are mainly due to three 

 reasons. 



1. The number of bergs located from Cape Chidley to Cape Dyer as 

 of early November in 1961 and 1962 were overestimated as berg counts 

 in September and October were used and deterioration was not ac- 

 counted for. Also, no berg sizes were available. It is now believed 

 that berg deterioration is heavy south of the pack ice limits and nor- 

 mally continues into November for the area south of Cape Dyer. A 

 berg crop survey in early December would be more meaningful as 



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