89 



occurring during 1939. These sections, which have been repeatedly 

 occupied and have formed the basis of earUer discussions in previous 

 bulletins of this series are defined as follows: Section T, running south- 

 easterly from about 46°20' N., 49°00' W. ; section U, running east and 

 west at about the 45th parallel; and section W, running south off the 

 Grand Banks in about longitude 50° W. During 1939 sections T and 

 U were occupied 3 times each and section W was occupied 4 times. 

 For purposes of comparison the volume of flow, mean temperature, 

 and minimum observed temperature are given in table 1 for all occu- 

 pations of these sections from and including 1934. 



Table 1. — Sliowing volume of floic i7i judlion cubic meters per seco7id, mean tempera- 

 ture in ° C, and minimum, temperature in ° C, of the Labrador Current in the 

 Grand Banks region 



Mar. 16 to Apr. 15 



Vol- 

 ume 



Mean 

 tem- 

 pera- 

 ture 



Mini- 

 mum 

 tem- 

 pera- 

 ture 



Apr. 16 to May 15 



Vol- 

 ume 



Mean 

 tem- 

 pera- 

 ture 



Mini- 

 mum 



tem- 

 jiera- 



ture 



May 16 to June 15 



Mean 

 tem- 

 pera- 

 ture 



Mini- 

 mum 

 tem- 

 pera- 

 ture 



June 16 to July 15 



Vol- 

 ume 



Mean 

 tem- 

 pera- 

 ture 



tem- 

 pera- 



Section T; 

 1934__.. 

 1935—. 



1935 



1936 



1937 



1938 



1939 



Average- 

 Scction W: 



1934 



1935 



1936 



1937. 



5.71 

 3.78 



2.12 

 1.55 



■1.65 

 ■1.20 



3.7 

 7.20 

 3.54 

 5.62 

 9.01 

 5.81 



2.0 

 2.31 

 1.54 

 2.16 

 1.31 



-1.66 

 -0.82 

 -1.29 

 -1.20 

 -1.51 

 -1.30 



2.1 

 4.1 

 3.23 

 3.53 

 6.70 

 4.55 

 3.72 



3.48 

 5.92 

 6.69 

 5.80 

 6.34 

 7.15 

 5.90 



4,26 

 0.74 

 2.10 



5. 66 

 1.60 

 2.05 



-1.71 

 -1.56 

 -0.43 

 -1.49 

 -1.79 

 -1.68 

 -1.47 



-1.37 

 -1.24 

 -0.94 

 -1.56 

 -0.71 

 -1.55 

 -1.23 



1.5 



■1.72 



2.71 

 3.15 

 1.96 

 3.88 



2.06 

 2.90 

 1.55 

 1.85 



-1.50 

 -1.47 

 -1.22 

 -1.67 



2.64 



1.56 

 1.75 

 3.14 

 1.72 

 3.80 



-1.52 



-1.70 

 -1.28 

 -1.23 

 -1.29 

 -1.43 



4.30 

 2.62 



2.58 



0.84 



2.19 

 1.74 

 1.44 

 2.17 



3.02 



4.78 

 7.74 



19 



0.54 

 5.44 

 7.43 

 3.62 



0.66 

 3.78 

 1.76 

 2.23 



-0.29 

 -0.83 

 -1.59 



3.13 

 8.78 

 5.48 

 5.78 

 3.81 



2.61 

 2.85 

 2.33 

 4.75 

 1.59 

 2.55 



0.02 

 0.08 



0'39 

 -1.52 

 -0.53 



1.63 

 3.87 



2.76 

 3! 55 



3.73 

 1.82 

 2.02 



1.18 

 -1.62 

 -0.76 



3.40 

 5.07 

 2.26 

 2.90 



2.53 

 2.42 

 1.82 

 2.78 



■1.25 

 ■1.62 

 -1..53 

 •1.52 



-1.41 

 -1.64 

 -1.61 

 ■1.58 



From tliis table it will be seen that the volume of flow was greater 

 than the 6-year average at each occupation of each section with the 

 exception of the second and fourth occupations of section W. It will 

 also be noted that the mean temperature was lower than the average 

 at each occupation of each section except the first occupation of sec- 

 tion T. The minimum observed temperature, while not as significant 

 as the volume of flow or mean temperature, was colder than the av- 

 erage through the year. 



The seasonal variation in the volume of flow past sections T, U, and 

 W during the 1939 season is shown graphically in figure 24. Similar 

 curves drawn for other years have all shown a pronounced seasonal 

 maximum occurring about the beginning of May. Figure 24 indi- 



