Table 3. — Estimated Number of Icebergs South of Latitude 48 °N, 1900-1968 — Con'd. 



Note: 



1. Totals for 1900-45 are based mainly on ship reports. 



2. Totals for 1946-68 are based mainly on Ice Patrol aircraft 



3. Monthly estimates for the years 1939 through 1944 have 

 in the Bulletins for these years. 



Pre-season aerial ice reconnaissance had in- 

 dicated the possibility of a very heavy ice sea- 

 son, refer to figures 1 and 2, but as the season 

 progressed favorable winds drifted many more 



reconnaissance. 



been adjusted to reflect the total annual berg estimates as reported 



bergs than had been expected out of the Lab- 

 rador Current. Figures are provided to illus- 

 trate the movement of ice into the Grand Banks 

 area. The sources of ice information were the 



14 



