1915- No, 2. 



SPITSBERGEN WATERS. 



61 



tion of the progressive vector-diagrams of the relative movements (see 

 pp. 55 and 561. According to the progressive vector-diagrams, Fig. 53, we 

 find that from August i8th 2 a. m. to August 19th at noon, the water 

 should have moved, 



at a depth of 20 metres, towards X i '^ \V (X 1 1 f" E magnetici with a 

 mean velocity of 7.6 cm. per second; 



at 50 metres, X 58" E (X 70° E magnetic! with a mean velocity of 3.6 

 cm. per second; 



N 



2û?n. 



SOrrv. 



£• W 



2007ri. 



JR. 



^0 cm/stc. 



Fig. 46 — 50. Central Vector Diagrams of the Real Movements at 20. 50, 100, and 200 

 Metres as they probably were according to the measurements at Stat. 41. 



at 100 metres, towards X42*^E (N 54 "^E magnetic) with a mean velo- 

 city of 3.3 cm. per second. 



The shifting of the direction of the water-movement towards the right 

 with increasing depth, simultaneously with a decrease of the velocit}', might 

 appear to agree with what it theoreticall}' ought to be (cf. Nansen, 1902, 

 p. 369 et seq.). While the average drift of the ice at the surface was 

 about 13 cm. per second towards S ôô*^ W, the current at 20 metres 

 moved with an average velocity of about 8 cm. per second at an angle 

 of about hqO towards the right of the direction of the surface movement, 



