(E+C) was 606.4 with a mean temperature of 13.1°. In arriving 

 at the heat transport figures the same procedures of estimates 

 and differences used in deriving the volume transports above 

 were followed. 



Certain sections across the Labrador Current have been re- 

 peatedly occupied in connection with the routine current surveys 

 of the Grand Banks region and on the postseason cruises. The 

 velocity and temperature distribution in these vertical sections 

 has been studied in some detail and over the years the accumu- 

 lated data have permitted the development of tentative seasonal 

 variation relationships for some of the sections for a part of the 

 year. The locations of the sections occupied in 1958 and sub- 

 jected to detailed analysis are as follows: Sections NW, SW 

 and SE are the northwestern, southwestern and southeastern 

 sides of the Bonavista triangle which is defined by its corners 

 located at 50° N., 49° W., 47°20'N., 50° W., and just off Cape 

 Bonavista, Newfoundland. Section H is roughly parallel to the 

 southeastern side of the Bonavista triangle and extends north- 

 northeasterly from about 47°10'N., 49°15'W. Section G extends 

 northeasterly from about 47°10'N., 48°40'W. Section F 2 is an 

 east-west section between the Grand Banks and Flemish Cap 

 along the parallel of 47°15 / N. Section F is similar to F 2 but 

 about 30 miles farther south. Section T extends southeasterly 

 from about 46°20'N., 49°00'W. Section U extends easterly from 

 the Grand Banks at about 45 °N. Section W extends southerly 

 from the Grand Banks along the meridian of 50°15'W. The 

 South Wolf Island section extends northeasterly from South Wolf 

 Island, Labrador and is a part of the section across the Labrador 

 Sea from South Wolf Island to Cape Farewell, Greenland. 



Tentative seasonal normal relationships for the West Greenland 

 Current off Cape Farewell were published in bulletin 35 of this 

 series. The seasonal normal relationships for the Labrador Cur- 

 rent which have been developed previously were published as 

 follows : 



Sections T, U and W bulletin No. 36 (season of 1950) 



Sections NW, SW and SE bulletin No. 39 (season of 1953) 



Sections F and G bulletin No. 42 (season of 1956) 



Insufficient data are at hand for the development of seasonal nor- 

 mals for sections H and F 2 . Shown herewith in figure 31 are 

 the tentative seasonal normal relationships for the South Wolf 

 Island section. 



In 1958 there were 19 occupations of such sections across the 

 Labrador Current. The results are summarized below in table 1. 

 In this table, as well as in the text, the volume transport is given 

 in millions of cubic meters per second, the mean temperature and 



51 



