which should be met, but which are not possible with the present state 

 of development of instruments and methods of measurement, are that 

 the precision of the temperature, salinity, and depth measurements 

 should be such that errors are less than about 0.02°, 0.005°/oo and 1 

 meter. The vertical spacing of the measurements should be close 

 (preferably continuous), and individual measurements should occupy 

 as brief a period of time as possible to make them really synoptic. 



Figure 27 gives the location of the oceanographic stations occupied 

 on the postseason cruise along the section from South Wolf Island, 

 Labrador, to Cape Farewell, Greenland, from 24 to 29 July. The dynamic 

 topography in the immediate vicinity of the section is shown for the 

 sea surface with respect to the 2,000-decibar surface. While the details 

 of the current pattern cannot be ascertained from a single section, figure 

 27 is useful in estimating limits of current bands and in interpreting 

 velocity profiles of the Labrador and West Greenland Currents for the 

 derivation of the net volumes of flow, heat transfers and mean tempera- 

 tures of those currents. Fortunately the amount and distribution of 

 storis off the southwest coast of Greenland permitted the close approach 

 to Cape Farewell indicated by the location of the innermost station. 

 This permitted the construction of a reasonably complete velocity 

 profile of the West Greenland Current with its analysis resulting in the 

 following figures: Volume of flow 6.46 million cubic meters per second, 

 mean temperature 4.87° C, and heat transfer 3L46 million cubic 

 meter degrees centigrade per second. Using these units, the results of 

 similar velocity profiles for all known occupations of sections across the 

 Labrador Current off South Wolf Island and of the West Greenland 

 Current off Cape Farewell are brought up to 1941 in table 3. The 1928 

 occupations were by the GodtJiaab in May, and by the Marion in July- 

 September; the March, 1935, occupation w^as by the Meteor; and the 

 remainder are occupations by the General Greene during its postseason 

 cruises. 

 TABLE 3 



Because of the decided seasonal increase in the mean temperature 

 of the West Greenland Current off Cape Farewell during the summer 



31 



