
doi: 10.1121/1.385990
Southern Hemisphere oceans provide unique conditions for the measurement of low-frequency wind-generated ambient noise due to their relatively low shipping densities. Results (10–500 Hz) for a single location in the South Fiji Basin [R. W. Bannister, J. Acoust. Soc. Am. 60(S1), S20(A)(1976)] supported the two principal noise generation mechanisms that have been suggested: turbulence, bubbles and spray. For a given local wind speed, higher noise levels were observed than have been reported for the North Atlantic Ocean. This paper is an analysis of wind-generated noise data from additional sites throughout the Tasman Sea—Fiji Basin region. Variation in measured level is compared to wind speed, seastate, and propagation conditions. It appears that local wind-speed is not an absolute indicator of wind generated ambient noise level. [Work supported by NAVSEA.]
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