Sound Attenuation between 200 Hz and 10 kHz.
SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)
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Trials have been conducted in the Western Mediterranean to confirm the excess attenuation of sound at frequencies between 200 Hz and 10 kHz. As sound propagation along the deep refracted path in the isothermal deep water of the Mediterranean is only affected by geometrical spreading and attenuation, it is possible to measure the attenuation separately for each frequency. The trials used explosive sound sources at different depths and at accurately determined ranges between 200 m and 30 km. Author
- Undersea and Antisubmarine Warfare