Table 1.— Summary of Velocity Sections Across the Labrador Current Occupied in 1958 



Section 



First survey : 



F 



T 



U 



W 



Second survey: 



NW 



SW 



SE 



H 



G 



F2 



F 



Third Survey: 



F 



T 



U 



W 



Post Season: 



NW 



SW 



SE 



S. Wolf Is 



Volume Transport 



5.14 

 4.66 

 5.50 

 4.56 



4.23 

 0.54 

 4.84 

 4.85 

 4.73 

 2.86 

 3.12 



3.38 

 2.67 

 4.29 

 3.34 



4.47 

 0.98 

 4.61 

 5.57 



2.73 

 3.33 

 5.31 

 4.24 



3.09 

 0.30 

 2.82 



3.61 



2.88 



3.86 

 0.56 

 3.22 

 3.73 



+2.41 

 + 1.33 

 +0.19 

 +0.32 



+ 1.14 

 +0.24 

 +2.02 



+ 1.12 



+0.24 



+0.26 

 +0.03 

 +0.57 

 -0.79 



+0.61 

 +0.42 

 + 1.39 

 + 1.84 



Mean Temperature 



2.19 

 2.13 

 1.63 

 2.82 



1.37 

 -0.55 

 1.28 

 1.63 

 1.45 

 1.84 

 2.00 



2.61 

 1.84 

 2.32 

 3.95 



0.73 

 0.80 

 2.10 

 2.40 



1.56 

 1.95 

 1.51 

 2.04 



0.81 



-0.98 



1.29 



1.73 



2.01 

 1.73 

 2.40 

 3.15 



1.30 



-0.14 



1.85 



1.96 



+0.63 

 +0.18 

 +0.12 

 +0.78 



+0.56 

 +0.43 

 -0.01 



-0.13 



+0.27 



+0.60 

 +0.11 

 -0.08 

 +0.80 



-0.57 

 +0.94 

 +0.25 

 +0.44 



Minimum Observed 

 Temperature 



-0.53 

 -0.39 

 -0.30 

 -0.05 



-1.57 

 -1.48 

 -1.09 

 -0.73 

 -0.74 

 -0.67 

 -0.65 



-1.00 

 -0.79 

 -0.55 

 0.51 



-1.72 



-1.62 

 -1.66 

 -1.65 



-1.26 

 -1.40 

 -1.23 

 -0.51 



-1.79 

 -1.62 

 -1.46 



-1.22 



-1.28 



-1.33 

 -1.56 

 -1.25 

 -0.39 



-1.65 

 -1.64 

 - 1 . 50 

 -1.57 



+0.73 

 + 1.01 

 +0.93 

 +0.46 



+0.22 

 +0.14 

 +0.37 



+0.48 



+0.63 



+0.33 

 +0.77 

 +0.70 

 -0.90 



-0.07 

 +0.02 

 -0.10 

 -0.08 



Heat Transport 



11.25 

 9.92 

 8.96 



12.84 



5.81 

 -0.30 

 6.21 

 7.90 

 6.87 

 5.27 

 6.24 



8.84 

 4.92 

 9.96 

 13.17 



3.26 



0.77 

 9.68 

 13.36 



4.26 

 6.49 

 8.02 

 8.65 



2.50 



-0.29 



3.64 



5.70 



4.98 



6.27 



4.57 

 8.93 

 13.01 



5.02 



-0.03 



5.96 



7.31 



+6.99 

 +3.43 

 +0.94 

 +4.19 



+3.31 

 -0.01 

 +2 . 57 



+ 1.17 



+ 1.26 



+2.57 

 +0 . 35 

 + 1.03 

 -0.16 



-1.76 



+0.85 

 +3.72 

 -6.05 



minimum observed temperature are given in °C. and the heat 

 transport is given in millions of cubic meter °C. per second. For 

 purposes of comparison the observed value is followed by the 

 seasonal normal where available and the anomaly from the sea- 

 sonal normal. 



Figure 32 is a schematic diagram representing the circulation 

 deduced from the volume transports found during the different 

 surveys and listed in table 1. In the first survey the volume trans- 

 port and mean temperature were above normal in amounts pro- 

 gressively smaller from section F through section U with longer 

 positive anomalies for both at section W. As noted earlier, the 

 temperature minimum of the Labrador Current was decidedly 

 warmer than usual. The positive anamalies of both volume and 

 mean temperature are reflected in the considerable positive 

 anomalies in heat transport throughout the first survey. 



In the second survey the volume transport at the Bonavista 

 triangle is clearly above normal. The mean temperature, however, 

 was somewhat inconsistent with the result that the positive 

 anomaly in the heat transport was contributed to by both volume 

 and mean temperature of the water entering the triangle and 

 largely the result of the volume of the water leaving the triangle. 

 In figure 32 rounded mean values of volume transport have 

 been used for the triangle both for the second survey and for the 

 postseason cruise, assuming that there was no net transport ver- 

 tically across the reference surface of 1,000 decibars. Farther 



53 



