This information s taken from the Instrumentation Summary of 

 Special Publication No. 41, Oceanographic Instrumentation, Final 

 Report of the Connmittee on Instrumentation, Second Edition, 

 October I960, U. S. Navy Hydrographic Office, Washington, D. C, 

 (price $1. 80). 



Instrument 



Operating Limits 

 TEMPERATURE 



Mechanical Bathythermo- 

 graph 



Depth: to VOO ft. 

 Accuracy: *10 ft. 

 Temiperature: -2. 2 to 32. 2° C. 

 Accuracy: ±0. 1° C. 



Deep-sea reversing ther- 

 mometer s 



Depth: to 20, 000 ft. 

 Accuracy: ± 100 ft. 

 Temperature: -2 to 30° C. 

 Accuracy: ± 0. 01° C. 



Wire-wound resistance 

 thermometer 



Depth: Surface. 

 Temperature: -5 to 30° C, 



-25 to 5° C. 

 Accuracy: ±0. 1° C 



Airborne radiation ther- 

 mometer 



Thermocouples 



Depth: Surface. (Aircraft 



height 35 to 2, 000 ft. ) 

 Temperature: -2 to 35° C. 

 Accuracy: * 0. 2° C. 



Depth: to 200 ft. 

 Temperature: -50 to 10° C, 

 Accuracy: ±0, 5° C. 



SALINITY 



Sea water sannpler-- Nansen 

 bottle 



a. Volumetric method 

 (Titration) 



Salinity accuracy: ±0.02%o. 



240 



