Accession Number : ADA181062

Title :   Low Frequency Ambient Noise Near Bermuda: Filling in the Notch

Descriptive Note : Technical document

Corporate Author : NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CT

Personal Author(s) : Von Winkle, William A ; Browning, David G ; Christian, Raymond J ; Cobb, A D

PDF Url : ADA181062

Report Date : 27 May 1987

Pagination or Media Count : 14

Abstract : Ambient noise models which assume no significant wind-generated noise mechanism in the 5- to 100-Hz frequency range predict a notch in noise levels, between shipping and microseismic noise, at approximately 10 Hz. Data are presented for the frequency range 3-200 Hz that show that this notch fills in at increasing wind speeds and is entirely eliminated above 35 knots for a North Atlantic Ocean location near Bermuda. These results are consistent with the low- frequency wind-generated noise mechanism.

Descriptors :   *AMBIENT NOISE, *UNDERWATER SOUND, ANOMALIES, LEVEL(QUANTITY), LOW FREQUENCY, MICROSEISMS, MODELS, NOISE, SHIP NOISE, WIND, WIND VELOCITY

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE