Ambient Noise Analysis of Acoustic Data from the Philippine Sea
Abstract
The objective of this research was to use recovered acoustic data recorded on analog tapes in the late 1970s to early 1980s to assist in characterizing the ambient noise properties of the Philippine Sea. The principle findings were the following. In a previous study of acoustic data recorded above and below the critical depth in the NE Pacific it was found that below the critical depth the average omni-level noise at 50 Hz associated with shipping was about 55 dB, whereas above the critical depth the noise associated with distant shipping was on the order of 75 dB, a 20 dB difference. For the Philippine Sea location it was found that below the critical depth the average omni-level noise at 50 Hz associated with distant shipping was about 67 dB, whereas above the critical depth the noise associated with distant shipping was on the order of 75 dB, an 8 dB difference.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 26, 2009
- Accession Number
- ADB348084
Entities
People
- A. F. Wittenborn
- David P. Knobles
- J. A. Shooter
- R. D. Gaul
Organizations
- University of Texas at Austin