inadequatE for station-keeping and were nearly useless for locating 

 the spar when visual contact was lost during storms. 



SUMMARY 



This system withstood the test of being handled and operated 

 at sea under severe weather conditons (to Sea State 7) with no 

 failures. Deployment of the spar from an AGOR class research 

 ship by scientists has become a routine task. The objective of 

 supporting the thermistor array system to within +1 m depth at 

 several hundred meters has easily been met with only the shear 

 currents affecting absolute depth outside of this range. Changes 

 to the system in the near future include better navigation aids 

 and some hardware refinements for easier handling. 



ACKNOWLEDGEMENTS 



The author wishes to thank Messrs. James 0. P. Schultz for 

 mechanical design on the project, Charles 0. Hill for the rigging 

 at sea and all members of the Ocean Physics Group, Applied Physics 

 Laboratory, University of Washington, for their contributions to 

 this project. 



This work was supported by the Naval Ordnance Systems Command, 

 U. S. Navy, under contract NOw 65-0207-d. 



REFERENCES 



1. A. M. Pederson, "Ocean Temperature Structure Array Electronics," 

 presented at the IEEE Geoscience Conference, April 1969. 



2. Owen H. Oakley, "Vehicles and Mobile Structures," Ocean Engin- 

 eering , John F. Brahtz, ed., John Wiley & Sons, New York, 

 1968, 368-370. 



3. F. N. Spiess, "Oceanographic and Experimental Platforms," 

 Ocean Engineering , John F. Brahtz, ed., John Wiley & Sons, 

 New York, 1968, 560-561. 



4. C. L. Bretschneider, "Wave Forecasting," Handbook of Ocean 

 and Underwater Engineering , John J. Myers, Carl H. Holm and 

 R. F. McAllister, ed., McGraw-Hill, New York, 1969, 11-97 to 

 11-99. 



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