Salinity samples obtained from Nansen bottles were stored in gasket- 

 sealed, 360-ml glass citrate bottles for return to the Hydrographic Office. 

 Analysis was made by a University of Washington conductivity bridge. 

 Duplicate runs vere made on each sample; accuracies are considered good to 

 within 0.01 parts per thousand (JL). 



Dissolved oxygen samples vere analyzed aboard ship by a modified 

 Winkler method. Duplicate analyses vere made on all, samples; where 

 variations greater than 0.05 ml/l occurred between two readings, a third 

 titration was made. 



The foregoing observed data were evaluated and coded for processing by 

 a Burrough's DATATRON computer. Machine computations provide temperature, 

 salinity, and oxygen interpolation at standard depths, and calculations of 

 density, anomaly of dynamic depth, and sound velocity. Listings of these 

 data are given in APPENDIX A. 



TABLE 1. SUMMARY OP OCEANOGRAPHTC OBSERVATIONS - DEEP FREEZE 60 





BURTON ISLAND 



GLACIER 



ATKA 



EASTWIND 



Ocean Stations 



55 



30 



18 



20 



Oxygen Stations 



kl 



12 



- 



6 



BT's 



731 



586 



1,757 



789 



Miles of Soundings 



6,900 



18,920 



22,360 



2U,856 



Miles of Ice Track 



690 



^760 



^,225 



500 



Miles of Continuous 











Temperature Records 



6,190 



2,120 



- 



9,000 



Sea and Swell Obs. 



kYJ 



392 



1*31 



53* 



Water Samples for 











Other Agencies 



22 



6 



- 



27 



Surface Water Samples 



Ik 



183 



- 



39* 



Plankton Tows 



6 



k 



- 



- 



Dredge Hauls 



1 



- 



- 



- 



Bottom Grab Samples 



1 



2 



- 



- 



Core Samples 



8 



18 



- 



19 



Gravity Measurements 



- 



22 



- 



11 



Rock Collections 



- 



k 



- 



1 



Additional observations by other ships: ARNEB - 202 BT's, 



PETERSON - 623 BT's 



BT lowerings with 900-foot instrument were scheduled on an hourly 

 basis aboard the four icebreakers and on a fe-hour basis on other ships of 

 the Task Force. A total of ^,688 BT lowerings was made, including obser- 

 vations taken during transit to and from the Antarctic. Prints of these 

 slides and the accompanying weather observations are on file with the 



