LIM TS ALL KNOWN ICE 





OPEN 

 CLOSE 

 BERG 

 GROWLER 



CACKrl.eiS THAN 1/10 

 PACH^7/10 OR MORE 



CE CONDITIONS 

 1 MARCH 1965 

 ESTIMATE BERGS SOUTH 

 OF 48N-0 

 " BELLE ISLE -46 

 ■ CAPE CHIDLEY-222 



60' 39" SB" 



56' 55' 54' 53' 5?' Si" SO" 49" 48' 47' 4^ 46' 44' 43' 



Figure 4. — Ice conditions — Grand Banks on 1 March 1965. 



60- 99' 58' 5r 66' 95' 54' 53' 52' 51' 



50' 49 



:e conditions 



25MARCH1965 

 ESTIMATE BERGS SOUTH 

 OF:- 

 48N - 8 



BELLE ISLE -110 

 CAPE CHIDLEY- 210 



*r 



Figure 5. — Ice conditions — Grand Banks on 25 March 1965. 



idly east of longitude 51° W. All bergs, but for seven south of latitude 

 48° N. and several growlers, remained within the held ice limits. By 

 the 15th prevailing westerlies had drifted all sea ice eastward to longi- 

 tude '16°20' W. and northward of latitude ■±7°30' N. With increased 

 diurnal warming, air and sea temperatures increased and held ice 

 gradually melted until by the 22d there was only open brash spread out 

 unevenly to latitude 48° N., longitude 48°30' W. By the 30th all field 



13 



