0.000 100.000 



HONDO 



Water Depth: 850 ft. 

 Hydrophone Depth: 100 ft. 

 Distance: Average 50,100,200 ft. 



I Tonal (Spectrum line) 



^s Broad band (cent, spect.) 

 o Data tape speed lu, ips 

 n Data tape speed 30 ips 



HOLLY 

 Water Depth: 210 ft. 

 Hydrophone Depth: 100 ft. 

 Distance: 100 ft. 



0.000 100.000 





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RI.^JCON 

 Water Depth: 30 ft. 

 Hydrophone Depth: 20 ft. 

 Distance: 110 ft. 



F-17 



Fig. 5 Spectra of undenvater noise of platforms Hondo, Holly and Rincon 

 superimposed on average deep water ambient noise spectra 



F-17 



