Low Frequency Sound Attenuation Anomaly in the Ocean: Recent Experimental Measurements.
Abstract
Numerous explanations have been put forth for the low frequency sound attenuation anomaly in the oceans. Since laboratory measurements are difficult to perform in the frequency range, a series of experiments were conducted in natural bodies of water to determine the effect of salinity, temperature, pressure and biological activity. The areas in which experiments have been conducted to date are: Lake Superior, Lake Tanganyika, Red Sea and Hudson Bay. The results of these experiments are compared with other recent measurements in the Pacific Ocean and Mediterranean Sea. Although significant variations are noted among the sites, no one mechanism appears to be clearly responsible. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 08, 1971
- Accession Number
- AD0780845
Entities
People
- D. G. Browning
- E. N. Jones
- R. H. Mellen
- W. H. Thorp
Organizations
- Naval Undersea Warfare Center