86 



The Hydrography of the Faeroe- Shetland Channel 



For the year 1902 we have four sections (Figs. 11 to 14), the middle 

 dates being May 24, June 24, July 21, and August 29. Some are, of 

 course, incomplete, and salinity observations are wanting for the 

 July section, but it seems possible to follow the course of events with 

 considerable certainty. 



In the May section the first point to be noticed is the remarkably 

 low temperature and salinity in the depth. Up to within 200 fathoms 

 of the surface the salinity is. about 35*2, slightly higher on the east 



Fathoms 



0" 9- 



Metres 



%, C 





y/\ 







» 



/ "^ ^f& 



zoo 



^N7- 





r\ j 



•^r^Tf 



300 



■>• — ><^v / 





\ j 5- 



100 







ISO 



i 4 



500 











600 



V- 









700 





7S0 



j\ 





aoo 



/ WALWIN. 



. I JUNE 1902. 



BSO 



j\ 





9SO 



A 



1 ' 



,000 



Fig. 12. — Faeiioe-Shetlaxd Channel. Temperature and Salinity, June, 

 1902. Yacht ' Walwin.' 



side and lower on the west, while at that depth the temperature is 

 only 2°. Nearer the surface the northward flow of water is apparent, 

 the salinity rising above 35 "6 in warm water on the east side, and 

 scarcely falling below 35-5 on the west. In June it appears that the 

 northward movement had ceased altogether, and that a southward set 

 at all depths has begun, except on the west side of the channel, within 

 about 100 fathoms of the surface, where the conditions remain 

 practically unchanged. The surface salinity is now almost uniformly 



