There were 18 occupations of various of these sections across 

 the Labrador Current in 1956. Table 1 gives the volume transport, 

 mean temperature, minimum observed temperature and heat trans- 

 port found during these occupations in comparison with the 

 seasonal normal values where they are available. In the table, 

 as well as in the text, the volume transport is given in millions 

 of cubic meters per second, mean temperature and minimum 

 observed temperature are in degrees Centigrade, and heat trans- 

 port is given in millions of cubic meter degrees Centigrade per 

 second. 



In volume transport, table 1 shows a preponderance of positive 

 anomalies, the exceptions being sections T and U during the first 

 survey and the South Wolf Island section occupied during the 

 post season cruise. The mean temperatures were all higher than 

 normal during the first survey and except for section T were 

 below normal during the second survey. The Labrador Current 

 at the Bonavista triangle was warmer than normal during both 

 occupations and at South Wolf Island it was colder than average. 

 The percentage of the volume transport following the eastern 

 branch of the Labrador Current at the Bonavista triangle during 

 the 3d survey was 84.7 which was close to the seasonal normal 

 of 85.1 percent. At the time of the post season cruise, however, 

 this had increased to 92.0 percent whereas the normal seasonal 

 change is a reduction to 83.6 percent. As the volume transport 

 at the triangle increased from 4.28 to 4.98 between the two occu- 

 pations, whereas the normal seasonal increase is from 3.72 to 

 4.00 during this period, the positive anomaly increased from 

 0.56 to 0.98. This, together with the increase in the positive 

 anomaly in mean temperature shown in table 1, indicates that 

 the anamalous increase in the percentage following the eastern 

 branch was caused by an increase in the warmer offshore part 

 of the Labrador Current, from which an increased activity in 

 the circulation of the Labrador Sea is inferred. 



In bulletin 39 of this series it was noted that the minimum 

 observed temperature at the South Wolf Island section was slightly 

 warmer and its corresponding salinity somewhat fresher than 

 these values at the Bonavista triangle. Following is a tabulation 

 of the minimum observed temperatures and their corresponding 

 salinities at the South Wolf Island section and at the Bonavista 

 triangle for each of the 9 years from which nearly synoptic obser- 

 vations are available. 



50 



