The U.S.C.G. Cutter Evergreen completed the first oceanographic 

 check survey on the Sth of April and an utter absence of any defined 

 Labrador Current was noted (refer to fig. 10 for the Dynamic Topog- 

 raphy of the Grand Banks) . 



Tlierefore, after advising shipping for a suitable period of time, the 

 1966 Ice Patrol was ended on the 28th. 



MAY-DECEMBER 



During May, bergs drifted south along the Labrador coast and 

 Xewfoundland imder favorable winds. Tlie southernmost berg was 

 observed on the 28th of May at 49°11' N., 52°46' W. Of the 15 bergs 

 observed on the 28th of May, one drifted to 48''48' X., 50°46' W., by 

 the 2Ctth of June. A small berg was reported on the 20th of June at 

 47'40' X.. 48"45' W. but was never observed by the Ice Patrol aircraft 

 and was probably a growler. Xo ftirther reports or obseirations were 

 made after the 20th of Jime. 



The L'.S.C.G. Air Station. Argentia, was disestablished 20 July 

 1966 and the International Ice Patrol was transferred to Commander, 

 Eastern Area, L'.S. Coast Guard, Xew York, who assumed the re- 

 sponsibilities of Cormnander, International Ice Patrol. 



Xo ice reports were received throughout the rest of the year. The 

 September and December Xorthern Berg Survey flights did not ob- 

 serve any bergs or pack ice south of Labrador (refer to figs. 11 and 12 

 for the distribution of ice to Cape Chidley, Labrador, and Xorthern 

 Iceberg Survey). 



ON THE DISTRIBUTION OF ICEBERGS 



Aerial ice reconnaissance flights to determine the distribution of 

 icebergs by mmiber and size were continued. These flights can lie di- 

 vided into two grou}>s : Flights from Xewfoundland to Cape Cliidley, 

 Labrador, to assess iceberg potential for the current season and flights 

 to western Bafiin Bay to determine iceljerg potential for the forthcom- 

 ing season. Tliis data^was then analyzed relative to the potential drift 

 and deterioration rate by inspection of surface pressure charts, assess- 

 ment of available oceanographic data, comparison with mean frost- 

 degree days, and air ^:emperatures at selected stations. The programs 

 for quantitative and qualitative interpretation of berg drift and de- 

 terioration in open, nonice-covered waters, as well as detailed ocean- 

 ograpliic investigations into the circulation of the Labrador Sea-Baffin 

 Bay were continued by the L'.S.C.G. Oceanographic Unit (refer to 

 L'-S-C.G. Oceanographic Reports, Series CG-373). 



The aerial iceberg surveys conducted north of the Grand Banks and 

 including all of the western Baffin Bay-Labrador Sea were continued 

 (refer to figs. 2, 3. 7, 9, 11, and 12 for the data from aerial surveys 



13 



