Abstract 



Three cruises conducted off the Grand Banks of Newfoundland in 

 support of International Ice Patrol in April, May, June, and July of 1967 

 obtained measurements of temperature and salinity from a salinity/tem- 

 perature/depth recorder and from Nansen bottle observations. These data 

 were used to draw temperature and salinity profiles across standard 

 sections, and to calculate surface dynamic topography and volume flow 

 through the sections. Dynamic calculations were based on a reference 

 level of 1,000 meters. The cruises occupied standard section A3 a total 

 of 12 times during the ice season and the data indicated that the volume 

 flow of the Labrador Current showed large fluctuations with time, reaching 

 a maximum of 11 sverdrups (lO'^m^sec"') in early May. The study of 

 iceberg drift and deterioration, which was initiated in 1964, was also 

 continued. 



