Barometric pressure 

 Wind speed and direction 



Incident radiation 

 Reflected radiation 



Range: 950 to 1,050 millibars 

 Accuracy: ±0.1 millibar 

 Range: Speed: to ZOO knots 



Direction: to 360° 

 Accuracy: Speed: ±0.5 knots 



Direction: ± 5 

 Range: to 40 Langleys /minute 

 Accuracy: ±5% overall range 

 Range: to 100 (U. S. Weather 



Bureau special scale) 

 Accuracy: ±5% overall range 



The system should include provision for a towed, submerged, con- 

 stant depth device to measure wave spectra and transmit this data 

 to the Master Shipboard Data Logging and Processing System for 

 correlation with other recorded data. 



Sensor Time Response: All sensors should afford a 95% response to 

 a step function in a period of 1 second. 



d. Recording and Readout: 



Above data must be a direct and immediate input into the 

 Master Shipboard Data Logging and Processing System, on a con- 

 tinuous and/or intermittent recording basis. 



Potential Users and Estimated Number of Units Which They May 

 Require: 



a. U. S. Navy (basic research, applied research, and oceano- 

 graphic survey ships) - 20 to 30. 



b. U. S. Coast and Geodetic Survey - 10 to 15. 



c. Certain activities within scientific community - 10 to 20. 



d. Bureau of Commercial Fisheries - 2 to 8. 



e. U. S. Weather Bureau - 10 to 20. 

 Total: 52 to 93. 



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