90 



which the units are milHon of cubic meters per second and the refer- 

 ence surface 2,000 decibars: between about stations 2481 and 2484 on 

 the southern section, 7.4 southeasterly, joined by 25.2 southerly be- 

 tween stations 2484 and 2485 at the southern end of the contiguous 

 section; 44.8 northwesterly between stations 2485 and 2486 with a flow 

 of 52.3, determined by numerical computation alone, between sta- 

 tions 2475 and 2486; 49.1 easterly between stations 2486 and 2488, 

 the latter station being the turning point between sections; 18.0 south- 

 westerly between about stations 2488 and 2490 and 25.2 northerly 

 between about stations 2490 and 2489, the western edge of the Atlantic 

 Current past this section; 39.3 northerly between about stations 2523 

 and 2527 on the section eastward from Flemish Cap; 25.9 easterly 

 between about stations 2527 and 2530; 14.3 westerly between about 

 stations 2530 and 2533; 27.3 easterly between about stations 2533 and 

 2539; and 3.7 westerly between about stations 2539 and 2540, the 

 northernmost station of the survey. These volumes of flow and their 

 interrelation are shown schematically on figure 45 which is a sketch 

 transport map in which each line represents approximately 5 million 

 cubic meters per second volume of flow. 



An inspection of figure 45 indicates that it is reasonable to make 

 the assumption mentioned above, that the Atlantic Current passing 

 the southern section also passes the section running east from Flemish 

 Cap. Figure 45 is also in agreement with the results of the 1935 

 post-season cruise which indicated that the northernmost branch of 

 the Atlantic Current extends to about latitude 55° N., before turning 

 eastward. An examination of the temperature-salinity correlation at 

 depths of from 400 to 1,000 meters at station 2486 indicated, as did 

 the depth of the 10° isotherm, and the dynamic height, that that 

 station had water of characteristics most nearly approaching those of 

 Sargasso Sea water and was therefore farthest across the Atlantic 

 Current of any station in the survey. A comparison of the tempera- 

 ture-salinity correlation at this station with those at the Atlantis 

 stations along the meridianal section in about longitude 30° W., 

 reported by Iselin * (1936) indicated that the water passing station 

 2486 was of similar character to that slightly north of Atlantis station 

 1014 and consequently was not only not a part of the branch of the 

 Atlantic Current which recurves toward Bermuda, but that probably 

 it was not all of the way across the part of the Atlantic Current which 

 continues east, north of the Azores. A similar comparison of station 

 2486 with the temperature-salinity characteristics of another section 

 running north from the Azores and reported on by Iselin ^ (1930) 

 similarly indicated that the water at station 2486 crosses the Atlantic 



* Loc. cit. 



« Iselin, C. O, Recent work on the dynamic oceanography of the North Atlantic. Pub. Nation. Res, 

 Council, Trans. Amer. Qeophys. Union, tenth annual meeting, 82-89 (June, 1930) Washington. 



