Annual Counts of Icebergs Crossing 

 48° North Latitude (1912-94) 



1912 — 

 1915 



1920- 



1925- 



1930- 



Y 



6 1935—1 



a 

 r 



o 

 f 



c 



e 



1940_ 



1945— 



1950. 



1955- 



P 



a 

 t 

 r 







I 1960- 



e 

 a 

 s 







n 



1965. 



1970- 



1975- 



1980- 



1985— 



1990 — 



1995- 



Number of Icebergs 



January 20, 1914 

 IIP setabllshed 



1 9t7ii9irSo psilrate due to WW1 



Southerrimost berglo date 



1942-1945 No patrols due to WVV2 



-^ 1 946 First use ol aircraft for IcatMrgi 

 rscorviaissance 



K 

 8 



1 983-IIP fl ret uses SUR 



Figure 1 



53 



