PREFACE 



This bulletin is No. 51 in the series of annual reports on the Inter- 

 national Ice Observation and Ice Patrol Services. The authority for 

 mission, forces assigned, and method of operation of the International 

 Ice Patrol during the 1965 season are described. 



Aerial ice observation and communication statistics are presented. 



All ships reporting ice and weather to the International Ice Patrol 

 in 1965 are tabulated. A month-by-month general description of ice 

 conditions for the Grand Banks area is given. Only 76 bergs drifted 

 south of latitude 48° N. durmg the season, a low figure in comparison 

 with the 1900-1965 average of 377 bergs. The most southerly berg 

 of the season was reported 28 May in 42°43' N., 51°54' W. The dura- 

 tion and maximum extension of the pack ice to the south and east of the 

 Newfoundland coast was subnormal. 



Preseason and postseason activities, including the 1964 postseason 

 northern ice surveys previously reported in the Season of 1964 Bulle- 

 tin, are tabulated. 



Weather and the climatology of Baffin Bay, Davis Strait, and the 

 Labrador Sea as related to ice conditions ai'e presented. 



Capt. Richard L. Fuller, U.S.C.G., was Commander, International 

 Ice Patrol, as well as Commanding Officer, U.S.C.G. Air Station, 

 Argentia, Newfoundland. 



The author of this bulletin, Comdr. J. E. Murray, U.S.C.G., ac- 

 knowledges meteorological data supplied by Mr. William E. Markham, 

 head of the Canadian Department of Transport, Ice Central, Halifax, 

 Nova Scotia, and by the U.S. Naval Oceanographic Office. Assisting 

 in the preparation of the illustrations and manuscript were Senior 

 Chief Aerographer's Mate Donald C. Bailey, Chief Aerographers 

 Mate William F. Van Gaasbeck, and Chief Yeoman Harris E. Nvlen. 



