Table I. Summary of Data Collected at Each Station. 



standard analysis procedures were used for 

 correcting thermometers and determining 

 thermometric and accepted depths. Use of the 

 shipboard computer made accurate real time 

 data analysis and quality control possible on 

 board. 



Salinity Determination 



Salinity was determined using an inductive 

 salinometer, and the onboard computer. 



Oxygen and pH 



Dissolved oxygen and pH were determined 

 on all the water samples using the methods de- 

 scribed by Strickland and Parsons (1965). 

 From the oxygen data, percent saturation and 

 apparent oxygen utilization were calculated 

 giving a gross estimate of biological activity. 



Nutrient Analysis 



Water samples were analyzed at sea for in- 



organic phosphate, nitrate, nitrite and silicate 

 using the methods described by Strickland and 

 Parsons (1965). The ultraviolet spectrophoto- 

 meter was shock-mounted to counteract the 

 continual vibration of the ship in breaking ice. 

 This arrangement worked quite well. 



Frozen samples for ammonia and total phos- 

 phous were returned to the U.S. Coast Guard 

 Oceanographic Unit for later analysis. Due to 

 problems with the distilled water and de-ion- 

 izer, the data will be given in a later report. 



Salinity-Temperature-Depth System (STD) 



A continuous trace of temperature and salin- 

 ity versus depth was obtained at only 8 sta- 

 tions due to malfunctions of the salinity sen- 

 sor. A Nansen bottle was attached to the STD 

 wire just above the sensor unit for calibration 

 of the STD data. 



