Relative Importance to U. S. National Oceanographic Program: 



Instrunnent systein priority 4. 



II. e. AIR-SEA SURFACE INTERFACE ENVIRONMENTAL 

 DATA RECORDING SYSTEM 



Primary Use: 



To be utilized by oceanographic survey ships primarily for 

 underway operations, and secondarily for stopped operations, to 

 sample and record the key environmental data found at and/or near 

 the air-sea interface. 



Requirements and Specifications: 



a. To be designed and constructed primarily for underway 

 operations at ship's speeds of 0-15 knots. 



b. A strict requirement is that the sensors be designed and lo- 

 cated so as to measure the environment immediately at the interface 

 or as close thereto as possible, without being adversely affected by 

 own ship's motion and air turbulence over the ship projections as 

 the ship moves through the water. 



c. Sensors: Ranges and Accuracies: 



Sensor 

 Sea surface temperature 



Sea surface salinity 

 (two interchangeable 

 modules) 



Sea surface oxygen 



Air temperature 



Relative humidity 



or Dew point 



Range: -2° to 35 C. 

 Accuracy: ±0.1°C. 

 Range: to 25%o 



25 to 45%o 

 Accuracy: ±0 . l%o 



±0 . 1 'foo 

 Range: to 10 milliliter s/liter 

 Accuracy: *0. 1 milliliter /liter 

 Range: -40° to 70°C. 

 Accuracy : ±0.01°C. 

 Range: to 100% or 



-40° to 50°C. 

 Accuracy: ±5% or ±0. 1 C. 



400 



