Bay along the Greenland side. The dynamic height at the northern 

 end of the ridge section is higher than either that at the inner end of 

 the Fyllas Bank section or that at the inner end of the Loks Land sec- 

 tion. This is open to two interpretations: either the northern end of 

 the ridge section extends into the southeastern portion of a closed clock- 

 wise eddj^ which lies inshore of the main body of the Baffin Land Cur- 

 rent which has swung eastward of the section north of its northern 

 end and is recurving southwestward on its way toward the origins of 

 the Labrador Current; or the northern end of the ridge section extends 

 into the southwestern portion of a closed clockwise eddy in southeastern 

 Baffin Bay. Examination of the temperature and salinity distribution 

 along the ridge section, as illustrated in figures 33 and 34 is inconclusive 

 with respect to this point, and the former of the two possibilities, which 

 has been followed in figure 31, has been chosen as being the more probable 

 in view of what little is known of the circulation in southeastern Baffin 

 Bay. The circulation past the ridge section is similar at other levels 

 to that shown at the surface. 



As to the division of the current passing the ridge section into that 

 portion which crosses to the American side to join the Baffin Land 

 Current in forming the Labrador Current, and that portion which repre- 

 sents the contribution of the Baffin Land Current to the Labrador 

 Current, and the portion of the closed clockwise eddy in Baffin Bay, the 

 velocity profile is indeterminate. The water characteristics of tem- 

 perature and sahnity, however, shown in figures 33 and 34, indicate that 

 the dividing line was located in the vicinity of station 374L Numerical 

 computation gives 2.65 million cu. m./sec. as the volume of flow crossing 

 the ridge section in a westerly direction between stations 3741 and 3746. 

 This is presumed to represent the combination of the Baffin Land Cur- 

 rent contribution to the Labrador Current and that part of the closed 

 eddy of southwestern Baffin Bay traversed by the northern end of the 

 ridge section. Numerical computation gives 1.19 million cu. m./sec. 

 as the volume of flow moving westerly across the ridge section between 

 stations 3727 and 3741. As 3727 is also the outer station of the Fyllas 

 Bank section for which a net northerly flow of 2.61 million cu. m./sec. 

 has been found, about 1.42 million cu. m./sec, by difference, represents 

 the West Greenland Current contribution to Baffin Bay. The sum of 

 these components agrees closely with a separate computation of 3.86 

 million cu. m./sec. of the volume of westerly flow between stations 

 3727 and 3746. (3ther volumes of flow computed are 1.25 million cu. 

 m./sec. westerly between stations 3716 and 3727, and 0.58 million cu. 

 m./sec. easterly between stations 3712 and 3716. 



The section represented by stations 3716 to 3725 was intended to 

 extend from the deep water of the Labrador Sea to Loks Land on the 

 northern side of the approaches to Frobisher Bay and thus cut across 

 the Labrador Current immediately south of the region where it is formed 

 by the junction of the Baffin Land Current and the westward curving 



87 



