Comparative Measurements of Low-Frequency Attenuation in the Deep Ocean Employing Sinusoidal and Explosive Sources.

The paper describes a deep-water propagation experiment involving the use of both explosive sources and towed sine wave projectors in the Sofar channel of the North Atlantic. It was conducted with the objective of narrowing the list of potential causes put forth to explain the well-documented but un...

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Bibliographic Details
Main Author: Thorp,W. H.
Other Authors: NAVY UNDERWATER SOUND LAB NEW LONDON CONN
Format: Text
Language:English
Published: 1967
Subjects:
Physical and Dynamic Oceanography
Acoustic Detection and Detectors
Acoustics
*Underwater sound
*Acoustic attenuation
Low frequency
North Atlantic Ocean
Explosive charges
Deep water
Anomalies
Regression analysis
Sofar
Most Project-2
North Atlantic
Online Access:http://www.dtic.mil/docs/citations/AD0782270
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0782270
Description
Summary:The paper describes a deep-water propagation experiment involving the use of both explosive sources and towed sine wave projectors in the Sofar channel of the North Atlantic. It was conducted with the objective of narrowing the list of potential causes put forth to explain the well-documented but unexpectedly large attenuation coefficients which have been reported by determining whether the observed anomalies stem from fundamental differences in the sources employed or from mechanisms associated with the medium. The study initially considers the conformity of coefficients in the 354 to 3540Hz region for the impulsive measurements in this instance with previously reported values. (Modified author abstract) Presented at the Meeting of the Acoustical Society of America (74th) Held at Miami Beach, Fla., on 14 Nov 67.

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