2. The circulation in the upper 1,000 meters has been presented in 

 greater detail based on the consideration of the volume transport, 

 mean temperature, minimum temperature, and heat transport of the 

 Labrador Current found during 19 occupations of 8 selected sections 

 across that current. The values found have been compared with 

 seasonal normals where such normals are available. 



3. The temperature-salinity relationship characteristic of Labrador 

 Current water, mixed water, and Atlantic Current Mater found in the 

 Grand Banks region in 1954 have been compared witli the 8-year 

 means for the period 1934-41. 



4. Three more surveys were added to the material available for the 

 study of the relationship between the position of the cold w^all in the 

 Grand Banks region, the strength of the Labrador Current and the 

 strength of the North Atlantic eddy as indicated by the difference 

 in sea level between Bermuda and Charleston. The large postwar 

 fluctuations in the mean sea level of thes'e stations have been noted 

 as possible causes of the poor agreement of postwar observations with 

 the relationship developed for the prewar observations. 



5. The repetition of the section across the Labrador Sea from South 

 Wolf Island to Cape Farewell, Greenland, has been reported upon and 

 the exceptionally vigorous circulation noted. The absence of con- 

 tributions to the West Greenland Current by the Irminger Current 

 continued in 1954 although the heat transport of the West Greenland 

 Current was abnormally high through more direct contributions from 

 the North Atlantic eddy. 



6. A group of three sections disposed in a triangular array southeast 

 of Cape Farewell and occupied during the 1954 postseason cruise 

 has been examined and the results presented. The southward and 

 eastward recurvature of the Iiminger Current and a part of the East 

 Greenland Current verifies the circulation pattern deduced from the 

 Labrador Sea section, and the separation of the Labrador Sea from 

 the circulation east of Cape Farewell is in accord with the larger num- 

 bers of East Greenland bergs recently found in positions exceptionally 

 far to the south-southeast of Cape Farewell. 



7. The distribution of total phosphorus found in the section across 

 the Labrador Sea and the Greenland triangle in 1954 has been pre- 

 sented and the phosphorus-density relationships found have been 

 examined, leading to the conclusion that total phosphorus is not 

 sufficiently conservative to be useful as a water mass tracer in this 

 region. 



The data collected during 1954 are tabulated below. The indi- 

 vidual station headings give the station number, date, geographical 

 position, depth of water, and the dynamic height of the sea surface 

 used in the construction of the dynamic topographic charts shown in 

 figures 15, 16, 18, 19, 20, and 24. The depths of water are rough 

 approximations, being uncorrected sonic soundings based on a sound- 



115 



