The next northern ber<r survey was conducted on 9-11 December 

 1065 from Argentia, Newfoundland to Cape Christian. See figure 19. 

 Two flights were made as follows : 



1. 9 December; Argentia to Sondrestrom, Greenland: 7.3 houre; 65 

 percent visual effectiveness; coverage, east coast of Labrador to 60 

 miles offshore; the east coast of Baffin Island to Cape Dyer and across 

 Davis Strait to Holsteinborg, Greenland. 



2. 10 December; Sondrestrom to Goose Bay, Labrador; 7.3 hours; 

 i'<:> percent visual effectiveness; coverage, east coast of Baffin Island to 

 7i I " N., thence to Cape Chidley. 



The following determinations were made on the basis of this survey. 

 Bergs were distributed as follows : 



Area 



South of Belle Isle 



Belle Isle to 58° N. — - 



58° N. to Cape Chidley -.- 



Hudson Strait to Loksland 



Loksland to Cape Dyer 



Cape Dyer to Cape Christian* 



Total 



Size 



Small 



Medium 



Large 



Unclassi- 

 fied 





 



11 

 1 



27 

 134 



173 



Total 











11 



19 



166 



210 



406 



•Only to 70° N. 



A comparison of the flights conducted in October and December 1965 

 with those of 1964 yields the following results : 

 1. October flights 



The 1965 flight showed a berg crop of appro.ximately 1,085 less than 

 the previous year. If a discount were to be made of the poor visibility 

 in 1965, 40 percent of the bergs would have had to have been over- 

 looked, either visually or by radar for a comparable berg count, a con- 

 sideration which, when compared to the distribution of bergs by visual 

 observations alone, appears unwarranted. A direct comparison of 

 berg size and distribution cannot be made. The 1964 observations 

 consider as important to the forthcoming berg crop, those bergs in the 

 coastal regions of western Baffin Bay, while the 1965 census was made, 

 and analyzed, on the assumption that all of western Baffin Bay at this 

 time of the year, consisted of the Grand Banks berg potential. How- 

 ever, a comparison on a berg count alone, shows that 1966 will be an 

 appreciably lighter ice year than 1965. "\^nien considering only the 

 estimated bergs of both yeai-s and when the size of each coimt is com- 

 pared, it is noted that in October 1965, 684 small bergs were observed 

 up to Devon Island. In October 1964, only 465 small bergs were 

 grouped into this size. Out of 3,425 bergs observed in 1964, 2,400 had 

 no size estimated. In October 1965, 1,003 small bergs were observed 

 throughout the entire area out of 2.340. with 680 unclassified as to size. 



If the distribution by size is related to their position and the 680 



29 



228-603 O - 66 ■ 



