Using discrete low-frequency components of shipping noise for gassy sediment characterization in shallow water

Andrey A. Lunkov, Boris G. Katsnelson

Research output: Contribution to journalArticlepeer-review

Abstract

This work shows that normal-mode attenuation coefficients can be extracted from ship noise and used to estimate the sound speed in gas-saturated sediments. In an experiment in the Sea of Galilee, a research vessel served as a noise source approaching a vertical hydrophone array at a constant speed. Twelve narrow-band components of the vessel noise in the frequency band 20-100 Hz were identified and mode filtered to estimate the normal-mode attenuation coefficients. The inversion results indicate that the sound speed in the sediments was approximately 170 m/s.

Original languageEnglish
Pages (from-to)EL428
JournalJournal of the Acoustical Society of America
Volume147
Issue number5
DOIs
StatePublished - 1 May 2020

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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