496 



John B. Tait 



With the underside of the oceanic layer-but surface Arctic water also as distinct 

 rron. intermediate Arctic water, was encountered in the deep toe of the Channel as 

 well as in similar depths of the other, i.e. north-western, side of Faroe Bank, the Butt 

 of Lewis to Faroe Bank section having on this occasion been extended considerably 



northwestwards (Fig. 7). . . ;/ j 



By November of the same year (Fig. 8), the surface Arctic water-mass totally under- 

 liid intermediate Arctic, Norwegian Sea, and oceanic waters across the northern part 

 of the Cha.mel, there being relatively very little apparently of either of the two sand- 

 wiched water-masses present at all. 



BOO 

 90O 

 lOOO 

 1100 

 1200 

 l]00 



TEMPERATURE AND SALINITY 



HORIZONTAL SCALE = I M, 000,000 

 VIRTICAL SCALE = I SPOO 



NOLS0, FAROE - FLUCCA, SHETLAND 



f.R.S. "SCOTIA" 

 21-23 MAY, I950 



Fig. 9 



This was still relatively the position in the latter half of May 1950 (Fig. 9) with, 

 however, a substantial cross-sectional area of still lower (34-79°/oo-34-77°/oo) salinity 

 water within surface Arctic mass, probably indicating still more intensive influence 

 from this source than in the previous year in the deeper Channel layers. By the begin- 

 ning of the following August there were signs on the northern section of Norwegian 

 Sea water beginning to displace both types of Arctic water along the continental 

 slope to the considerable depth of nearly 1,100 metres, although the latter, i.e. the 

 Arctic waters, still formed the main bulk of the bottom waters over the greater part of 

 the section. 



