During the 1962 season and postseason surveys there were 25 

 reoccupations of the sections across the Labrador Current for which 

 tentative seasonal normals have been published. A summary of the 

 results of the analyses of these data is presented in table II and the 

 volume transports have been shown schematically in figure 30. 

 Volume transports have been given in millions of cubic meters per 

 second, mean temperature and minimum observed temperatures in 

 degrees C. and heat transports in millions of cubic meter degrees C. 

 per second. Similar units will be understood without redesignation 

 in the following discussion. In the construction of figure 30, as in the 

 case of figure 29, the changes in mean temperature from section to 

 section have been considered in the estimates of whether losses and 

 gains in volume transport were associated with the inshore or offshore 

 margins of the Labrador Current. 



At the Bonavista triangle the volume transport anomaly decreased 

 from +1.1 during the second survey to —.3 during the fourth and 

 postseason surveys. In spite of this, however, the volume transport 

 of the Labrador Current in the area north of 47° N., taken as a whole, 

 showed an increasing positive anomaly during the second and fourth 

 surveys ( + .4 and +.7). The average anomaly of volume transport 

 for the area south of 47° N. remained about the same ( + .5 and +.6) 

 during the first and third surveys. 



The anomaly of mean temperature at the Bonavista triangle dropped 

 from +.24° to —.31° from the second to the fourth surveys and 

 showed a slight recovery to —.22° during the postseason occupation. 

 For the area north of 47° N., the average anomaly of mean tempera- 

 ture was small, changing from +.03° during the second survey to 



— .09° during the fourth survey. For the area south of this latitude 

 the average anomaly changed from +.21° during the first survey to 



— .10° during the third survey. 



The coldest part of the Labrador Current, as indicated by the 

 minimum observed temperature, was generally warmer than normal 

 with a preponderance of positive anomalies shown in table II. Also 

 there was a general increase in these positive anomalies between suc- 

 cessive occupations of individual sections. One notable exception 

 was section W where the anomaly changed from +.65° at the time of 

 the first survey, to —.04° during the third survey. 



Figure 31 shows the location of the oceanographic stations occupied 

 during the postseason survey and the limits of the sea ice encountered 

 off Loks Land and in the western part of Baffin Bay. The 600-meter 

 and 1,000-meter isobaths in the vicinity of Davis Strait also have 

 been showti. Figure 32 shows the dynamic topography of the sea 

 surface found during the postseason survey, using a 1,500-decibar 

 reference surface. In the absence of a network of stations, figure 32 

 must be considered to be little more than a schematic representation 

 of the surface circulation. As indicated in figure 30 the volume trans- 



54 



