1899] 



Some Hydrographical Eesults. 



The rather constant bottom temperature of the Scagerack 

 deep may thus be put at 5° C, which is 1° lower than the annual 

 mean temperature of the air, and 4^,7 higher than the mean 

 temperature of the atmosphere during the winter months. Mohn 

 has long ago sufficiently proved this circumstance to be owing to 

 warmer water coming up from more southerly sources, and the 

 high salinity of the bottom water also characterizes it as (rulfstream 

 water. In those sections of the ''Norske Rende" that have been 

 undertaken during late years, the soundings most often have not 

 been deep enough to record the bottom temperature, but there is 

 reason to suppose that it is gradually getting higher as one appro- 

 aches to where that channel (Norske Rende) opens into the North 

 Ocean deep. 



Thus, Hjoet found off Ekersund, Nov. 15th 1893 (3, p. 79, st. 24), 

 343 m. (bottom), t. = 5^3, s. = 35. 21 7oo. Off the mouth 

 of the Korsfjord I found Sept. 21st 1899. 



^Ve 99. 11 miles AV. off Marsten lighthouse. 

 60^ 8' N. 

 40 41,2 E. 



Depth 



Temp. 



Saltness 



in metres 



C, 



0/ 



/oo 







120,65 



32,16 



10 



12,65 



32,16 



20 



12.70 



32,37 



80 



12.75 



33,35 



40 



10,30 



34,89 



50 



8,70 



35,03 



60 



7,25 



34,96 



70 



7,05 



35,03 



80 



7,15 



35,03 



90 



7,65 



35,09 



100 



8,00 



35,23 



120 



8,00 



35,29 



150 



8,00 



35,29 



200 



6,90 



35,23 



250 



6,70 



35,23 



BOO 



6,70 



35,29 



340(bottom) 







At this spot in the "Norske Rende" the bottom temperature 

 was consequently in September 1899 6°,7 C. 



