APPENDIX G 



U. S. NAVY HYDROGRAPHIC OFFICE REQUIREMENTS 



FOR 

 SHIPBOARD OCEANOGRAPHIC SYNOPTIC SYSTEM FOR 

 REGIONAL AND MOBILE OBSERVATIONAL NETWORKS 



(ASWEPS) 



Primary Use: 



This is a specialized oceanographic, synoptic, collecting- 

 reporting instrument system; it is designed especially for the 

 rapid collection and reporting by radio communications of key 

 oceanographic data. It will be utilized by ocean station vessels, 

 radar picket ships, and selected combatant fleet units. These 

 three ship classes will be employed primarily as part of a regional 

 observation network, and secondarily as part of a mobile network. 



Requirements and Specifications: 



1. For use onboard ocean station vessels, radar picket 

 ships, and certain combatant fleet units, with the ship "lying-to" 

 or underway at slow speeds (0 to 5 knots), and in sea states 



through 6. 



2. This system must include, but not necessarily be limited 

 to, the following major components: 



a. Modular sensors 



b. Sensor housings 



c. Sensor electrical cable handling devices 



d. Monitoring and display consoles 



e. Accessory equipment to prepare the data for rapid, 

 automatic, radio transmission 



3. The following sensors shall be included: 



Sensor 



Depth Range: to 2, 500 feet 



Accuracy: ±0.5% or better over full 

 range 



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