Title :
Ambient noise data logger buoy
Author :
Hollinberger, David E. ; Bruder, David W.
Author_Institution :
US Naval Avionics Center, Indianapolis, IN, USA
fDate :
10/1/1990 12:00:00 AM
Abstract :
A buoy for measuring wind speed and the ambient noise sound pressure level from 10 to 1500 Hz with 1-Hz resolution is described. The measurement buoy was deployed in a remote fjord in southeastern Alaska from October to December, 1989. The results from the data collected show that, for a wind speed of 5 kn, the measured ambient noise level at 900 Hz lies well below the Knudsen curve for open-ocean, wind-generated noise. As the wind speed increases from 5 to 10 kn, the measured ambient noise level approaches the Knudsen curve, increasing at 4 dB/kn compared to 1 dB/kn for the Knudsen curve. Above 10 kn, the measured ambient noise level matches the Knudsen curve
Keywords :
acoustic noise measurement; data loggers; oceanographic equipment; underwater sound; 10 to 1500 Hz; AD 1989; Alaska; Knudsen curve; North Pacific; acoustic noise; ambient noise; coast; data acquisition; data logger buoy; fjord; instrumentation; measurement apparatus; ocean; underwater sound; Acoustic noise; Aerospace electronics; Fluid flow measurement; Marine vehicles; Noise level; Noise measurement; Sea measurements; Sea surface; Sonar equipment; Underwater cables;
Journal_Title :
Oceanic Engineering, IEEE Journal of
