DEPTH (M) 

 



2 3 4 5 6 7 



DISSOLVED OXYGEN (ml/ I) 



2 3 4 5 6 7 



DISSOLVED OXYGEN (ml/t) 



Figure 4a. — Vertical distribution of dissolved oxygen 

 (ml/1) versus depth (m) at oceanographic stations 

 taken hy USCGC DUANE at Ocean Station ECHO, 

 14 Xoveniher-7 Decemlier 1970. 



Figure 4b. — Vertical distribution of dissolved oxygen 

 (nil/1) versus depth (m) at oceanographic stations 

 talven by USCGC INGHAM at Ocean Station 

 ECHO, 22 .Tamiary-12 Fcliruary 1971. 



12 



