ANTARCTIC SURFACE WATER: EAST WIND DRIFT 



iS 



The existence of such currents is confirmed by an examination of the density distribu- 

 tion at right angles to the coast. Fig. 2 shows the density distribution along a line north- 

 west of Adelaide Island, based on the observations made at Sts. WS 509-17 in February 

 1930 (Station List, 1932). The slope of LAT1TUDE G6 . s 

 the surfaces of equal density downwards statics 

 to the south-east shows that there is a 

 current along the coast towards the 

 south-west, as well as an onshore move- 

 ment which keeps the light surface 

 water piled up against the coast. Fig. 3 

 shows a similar section made in January 

 in the following year. In this section 

 the surfaces of equal density show 

 practically no slope towards the coast, 

 whilst north of St. 589, 100 miles 

 offshore, they slope definitely to the 

 north-west. When these observations 

 were made there can have been very 

 little movement towards the south- 

 west or towards the coast, and 100 

 miles offshore there is evident indica- 

 tion of a current towards the north-east. 



500 m 



1000m 



Fig. 2. The vertical distribution of density (at) along a 

 line north-west of Adelaide Island, February 1930. 



Very little information on the water movements off the west coast of Graham Land 

 has been obtained by actual current observations. The 'Pourquoi Pas?' experienced a 



LATITUDE 

 STATION 



66 3 



67 5 



500m 



lOOOu 



Fig. 3. The vertical distribution of density (at) along a line north-west of Adelaide Island, January 1931. 



