Accession Number : AD0757664

Title :   Low-Frequency Sound Attenuation in the Gulf of Aden.

Descriptive Note : Technical rept.,

Corporate Author : NAVAL UNDERWATER SYSTEMS CENTER NEWPORT R I

Personal Author(s) : Browning,David G. ; Jones,Everett N. ; Thorp,William H.

Report Date : 05 MAR 1973

Pagination or Media Count : 22

Abstract : With the support of the French Navy, a low-frequency sound propagation experiment was conducted to obtain attenuation coefficients in the Gulf of Aden for the frequency range of 200 to 10,000 Hz. The experiment was conducted along a 500-kyd track, which was characterized by a broad sound channel with an axis depth of 250 m. The results are compared with previous measurements in the Red Sea and Atlantic Ocean. The attenuation coefficients agree with previous open ocean sound channel experiments and thus support the conclusion that attenaution for the frequency range of 200 to 10,000 Hz is independent of the experimental site. (Author)

Descriptors :   (*UNDERWATER SOUND, INDIAN OCEAN), LOW FREQUENCY, VELOCITY, SALINITY, ATTENUATION, EXPERIMENTAL DATA, THERMOCLINES, CORRELATION TECHNIQUES

Subject Categories : Physical and Dynamic Oceanography
      Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE