81 



volume of flow maintained a high value and increased somewhat 

 during these months. This sustamed large volume of flow is looked 

 upon as being the result of the abnormally large amount of water 

 flowing in the western branch of the Labrador Current and traceable 

 to the increased activity of the Baffin Land Current arising from the 

 1935 flood of West Greenland Current around Cape Farewell. It 

 may or may not be significant that in 1935 the contribution of water 

 off the Grand Banks was lower than in any of the other years investi- 

 gated. The average computed volumes of flow of this contribution 

 for the four seasons were: 1934, 3.5; 1935, 1. 4; 1936, 3. 3; and 1937, 

 4.5 million cubic meters per second. As previously mentioned, these 

 magnitudes must not be accepted without reservations because they 



. APRSL MAY JUNE 



O 

 b 



i 3 



O 



O 2 



Figure 38.— Variation in the volume of flow of water eastward off the Grand Banks during the 4-year 



period 1934-37. 



would require the imbelievably high average easterly velocity of 

 about one-half nautical mile per hour. 



In continuation of inquiry into the departures from average condi- 

 tions along the common boundary between the Labrador and Atlantic 

 Currents, the course of the horizontal projection of the zero salinity 

 anomaly line in the axis of the intermediate anomaly maximum has 

 been determined for each of the three surveys made during the 1937 

 season. The boundaries so indicated are shown in figure 39 along 

 with the average course of the boundary for the four-year period 

 1934-37. An inspection of figure 39 indicates that during the first 

 survey Labrador Current water covered a larger area than usual, 

 whereas during the two following surveys the boundaries were deeply 

 indented but the areas covered by the two types of water were close 



