UNCLASSIFIED 



Security Classification 



DOCUMENT CONTROL DATA - R&D 



(Security classltic 



Navy Electronics Laboratory, 

 San Diego, California 92152 



UNCLASSIFIED 



3 REPORT TITLE 



SEA NOISE VS NEAR AND DISTANT WAVE HEIGHT AND WIND SPEED 



4 DESCRIPTIVE NOTES (Type at report end inclusive dates) 



Research and Development Report, July 1965 to June 1966 



JTHORfSJ (La 



Frisch, W. L. 



6 REPO RT DATE 



11 July 1966 



nc.SF 101 03 15 

 Task 8119 

 (NEL L20461) 



1390 



NO(S) (Any other numbers that may be assig 



AVAILABILITY/LIMITATION NOTICES 



Distribution of this document is unlimited 



11 SUPPLEMENTARY NOTES 



12. SPONSORING MILITARY ACTIVITY 



Naval Ship Systems Command 

 Department of the Navy 



3 ABSTRACT 



Correlation of measurements made in deep, open-ocean areas of the 

 Northeast Pacific indicates: 



1. Sound pressure spectrum level is influenced by wave height and wind 

 speed at both ends of the frequency range considered (10 to 400 c/s); influence 

 is greatest between 160 and 400 c/s. 



2. Ambient-noise levels between 32 and 160 c/s are the least influenced by 

 near and distant wave height. 



3. For periods during which local wave heights were moderate and uniform, 

 no dependence of ambient-noise level on distant wave-height fluctuation was 

 observed. 



DD -^ 1473 



0101-807-6800 



UNCLASSIFIED 



Security Classification 



