Acoustic Volume Scattering: Its Dependence on Frequency and Biological Scatterers.
Abstract
The report discusses the dependence of acoustic valume scattering on frequency and biological scatterers in the Westfall Seamount Area, 200 miles off the coast of San Diego, California. Theoretical calculations and experimental data both showed a correlation between the frequency dependence of scattering (from 1 to 20 kilohertz) and midwater gas-bladder fishes. It is the hypothesis of the report that the size limitation of the swimbladders (0.5 to 5.0 millimeters) of these dominant scatters determines the frequency pattern (a sharp increase in scattering from 1 to 5 to 6 kilohertz followed by a relatively constant value to 20 kilohertz) which is observed off San Diego and many other deep ocean areas.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1975
- Accession Number
- ADA007298
Entities
People
- J. W. Reese
- W. A. Friedl
- W. E. Batzler
Organizations
- Naval Undersea Warfare Center