428 BOUNDARIES OF THE SEA 



Estuarine Features of the Sub-Arctic Pacific Ocean 



It is possible to show that these features of estuarine structure 

 occur in the sub-Arctic Pacific Ocean. 



Salinity Structure 



Figure 2 shows representative salinity structures at Ocean 

 Weather Station "P." There is an upper zone of relatively isohaline, 

 low salinity water, less than 33%o extending to 85(+ 15) m depth. 



SUB- ARCTIC SALINITY STRUCTURE 



ot Ocean Sfotion "P" 



1957 



Jan I F I M I A I M 



I ° I M 



Fie. 2 



