I I I I I I 



DISSOLVED 

 OXYGEN SATURATION (% ) 

 2 meters 



Figure 16. Observed 20 meter oxygen saturation distribution obtained using data from the 1963 

 NORTHWIND survey. Shaded areas are less than 20 meters deep. 



surface. Particulate content was so excessive in sea water samples 

 collected that individual turbidity blanks were required for all 

 photometric determinations. 



B. The East Siberian Sea. 



The temperature and salinity distributions in the East Siberian 

 Sea, observed by both NORTHWIND and BURTON ISLATJD, were highly stratified 

 and similar to those observed in the Laptev Sea in 1963. Temperatures 

 were observed to increase vertically from the bottom and toward 

 the coast, and salinities were observed to decrease vertically from 

 the bottom and toward the coast. Figures 17 and 18 show temperature 

 and salinity profiles drawn from data collected in 1963. Horizontal 

 temperature and salinity distributions as observed in both 1963 

 and 1964 are shown in figures 19 through 23. 



1. Temperature-Salinity Relationships . Water of three temperature- 

 salinity relationships was observed in the East Siberian Sea on 

 both cruises. Very near the Siberian coast, in the region between 

 the Indigirka River and Chaunskaya Bay, temperatures generally above 

 0°C were observed with salinities less than 20'%o . In the shallower 



23 



