4. Of the 900 bergs estimated south of Cape Chidley on 28 February, 

 41 percent survived to south of 48° N. 



5. An estimated 780 bergs drifted south past Cape Chidley between 

 surveys. There were an estimated 450 bergs between Cape Chidley 

 and just north of Cape Dyer in early December. As an estimated 75 

 of these bergs remained close ashore north of Cape Chidley, an esti- 

 mated 405 bergs that were north of the December survey managed to 

 drift south of Cape Chidley by late February. The leaders of this 

 group, including several ice island fragments, were located otf Ham- 

 ilton Inlet and had advanced about 250 miles along the current system 

 toward the Grand Banks in 86 days for an average rate of 9.9 miles 

 per day. Winds were evaluated as favorable for drift, toward the 

 Grand Banks between surveys for this particular group. 



6. The first group of about 75 bergs arrived at the Grand Banks 

 between 48° N.-49° N. at mid-March. This group consisted of about 

 50 bergs located between 50° N. and Cape Chidley on 4 December and 

 25 bergs from Cape Chidley to Resolution Island. These bergs had 

 drifted to near 51° N., 54° W. on 28 February for an average drift rat« 

 of 7.6 miles per day between surveys. The average travel time for the 

 group from Cape Chidley was estimated to be about 3i/2 months at an 

 average group drift rate of 8.2 miles per day from early December to 

 mid-March. Winds were evaluated as favorable during the travel 

 time of this group. 



7. The second group of 100 bergs centered near 64° N., 62°30' W. on 

 4 December had drifted to near 52° N., 54°30' W. by 28 February and 

 reached the Grand Banks between 48° N.^9° N. by 28 March. Aver- 

 age drift rate of this group was 9.9 miles per day between surveys and 

 9.3 miles per day from early December to late March. The drift rate 

 of the second group was faster than the drift rate of the first group, 

 most likely due to the fact that the onshore wind component for the 

 months December 1963-February 1964 was slightly greater for the 

 first group and it probably spent more time aground or out of the 

 current axis. See figures 55-57. Also the first group was located 

 closer ashore in early December than the second group. See figure 

 62. The second group is believed to have spent little, if any, time 

 aground between surveys, but probably was slowed up in the vicinity 

 of Funk and Fogo Islands between 28 February and 28 March. The 

 estimated travel time for the second group from Cape (liidley to the 

 Grand Banks was 3 months. 



8. The third group progressed to near 54°50' N., 56° W. on 28 Feb- 

 ruary for an average drift rate of 9.7 miles per day. This group ar- 

 rived at the Grand Banks between 48° N.-19° N. in mid-April for an 

 estimated overall drift rate of 9.2 miles per day. The estimated travel 

 time from Cape Chidley to the Grand Banks was 3 months and from 

 Cape Dyer to the* Grand Banks was 4i/^ months. 



72 



