Scattering measurements of rocky seafloors using a split-beam echosounder

Jen A. Gruber, Derek R. Olson

Research output: Contribution to journalArticlepeer-review

Abstract

Scattering measurements were made off the coast of Pacific Grove, CA at 200 kHz, in an exposed fractured granite seafloor. Using inertial sensors and a split-beam transducer, data were processed to obtain a range of grazing angles corresponding to scattering strength, and signal processing techniques were used to extract the relevant portion of each ping. The ensonified angular width from a circular aperture is presented. Scattering strength measurements using different assumptions regarding the grazing angle were compared. The empirical Lommel-Seeliger model provided a good fit to measured data with a parameter of −18.4 dB.

Original languageEnglish (US)
Article number026001
JournalJASA Express Letters
Volume4
Issue number2
DOIs
StatePublished - Feb 1 2024

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics
  • Music
  • Arts and Humanities (miscellaneous)

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