- No. 2. SPITSBERGEN WATERS. 75 



metres are sloping in the opposite direction (see the isopycnal of 27.90) 

 indicating a slow movement in some easterly direction. 



Two vertical series of observations were taken at Stat. 20, one on 

 August 5th 10.40 a. m. (called Stat. 20, see Table I) and another on the 

 same day between 3.30 and 6.20 p. m. (called Stat. 20 a). These two series 

 give somewhat different densities. By computation in the same manner 

 as before, we find the following values of velocity for the current-compo- 

 nents perpendicular to our section, *. e. directed towards S 75 W: 



Observations at Stat. 20. Observatios at Stat. 20 a. 



Aug. 5, 10.40 a.m. Aug. 5. 6.20 3.30 p.m. 



At the Surface 3.3 cm. /sec. 2.6 cm. /sec. 



10 metres 1.9 1.4 



20 0. 9 1.2 



50 0.32 0.3 



80 0.54 0-54 



2OO - O.O O.O 



If we introduce into the computation the angles which the currents 

 formed with our section at the different depths, we find that the above 

 values of the components, would correspond to the following velocities of 

 of the currents: 



At the Surface 4.6 cm. /sec. or 3.6 cm. /sec. 

 ro metres 2.6 1.9 



20 1.8 i.i 



n 5 n r 8 n 1-7 



These values agree still less, than those of the section through Stats. 

 18 and 19, with the results of the current-measurements at Stat. 20. It 

 may indicate great local differences in the currents in the region between 

 Stats. 20 and 21. On the other hand it has also to be considered that the 

 observations at Stat. 21 were taken many hours after those at Stat. 20 

 (and 20 a). 



The vertical distribution of density at Stats. 21 and 22 (Fig. 14) Indi- 

 cates a comparatively rapid current running in some north-easterly direction 

 between these stations. The distance between the stations was 18 kilo- 

 metres. Computed in the same manner as above, and provided that the 

 motion of the water at 200 metres was negligible, we find the following 

 values of velocity for the current-components perpendicular to the section : 



At the surface 15.5 cm. per second 

 15 metres 16 



150 1-8 



200 0.0 



