18 



0. Nordoaard. 



[No. 8 



in spite of the good isolating power of the apparatus. This how- 

 ever is of no importance in case of the use here made of the obser- 

 vations. The latter show that the Atlantic water off the 

 Lof oten-Vesteraalen edge at wintertime may have an 

 ex tent in depth of 900 me tres. 



It is also worth noticing that the stream in the month of 

 March. even where bordering on the coast sea reaches the 68th 

 ■degree of latitude with a surface temperature of 5° C, and that 

 there is a layer of 400 metres the temperature of which exceeds 5°. 

 It is further to be noticed that the temperature in the Tranø-deep 

 (Vestfjord) at 600 m. was about 4° higher than at the corre- 

 sponding depth outside the ocean edge. — It is consequently evident 

 that the region of Atlantic water has a considerably greater volume 

 off the Lof oten-Vesteraalen edge than off Storeggen, where accord- 

 ing to the measurements of Captain Muller it reached the depth 

 t)f 500 m. 



To this lowering of the lower boundary of the warm water 

 corresponds a similar advance downwards of the animal world that 

 is dependent on the presence of Gulfstream water. At the same 

 time the arctic fauna is pressed downwards, — 



In the sea off" Sen j en we were unable to reach the borders of 

 the Gulf Stream, being on every occasion caught by bad weather. I 

 give however the observations from the Senjen coast sea, because 

 they give an idea of the mixing process that is going on on the 

 <3oast banks in course of the winter. 



21/1 1899. The Senjen-sea. 



13/4 1899, 



12 miles NWtW off Maanesodden. The Senjen-sea. 



Depth in 



Temp. 



Salinity 



Depth in 



Temp. 



Salinity 



metves. 



C». 



%o. 



metres. 



CO. 



"Zoo- 







3,3 



33,13 







3,35 



34,60 



10 



3,9 



)■> 



20 



3,45 



)5 



20 



„ 



» 



50 



5,1 



34,97 



40 



„ 



» 



80 



5,3 





50 



4,3 



„ 









80 



4,5 



33,33 









100 



4,6 



» 









120 



4,4 



» 









