Relating Acoustic Backscatter Data to the Geomorphology of the Mid-Atlantic Ridge

Abstract

In this work an attempt is made to invert backscatter data collected on the Acoustic Reverberation Special Research Project (ARSRP) Reconnaissance Cruise to extract fine- and micro-scale geomorphology of a site on the western flank the Mid-Atlantic Ridge. To achieve this goal a methodology was developed and tested using two numerical models of different fidelity and computational load. Both models are based on the Helmholtz-Kirchhoff (H/K) theory for near- normal incidence. The inversion method was then applied to the ARSRP reconn data to extract the Mid-Atlantic Ridge geomorphology. Preliminary results and problems with using the ARSRP reconn data for this analysis are discussed. A proposal to modify the measurement methodology for some of the planned data collection in the upcoming ARSRP experiment is made. Bottom scattering, Reverberation.

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Document Details

Document Type
Technical Report
Publication Date
Mar 25, 1993
Accession Number
ADA275088

Entities

People

  • Jerald W. Caruthers
  • Jorge C. Novarini

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Acoustic Scattering
  • Acoustics
  • Angle Of Incidence
  • Backscattering
  • Diffraction
  • Frequency
  • Geomorphology
  • Geophysics
  • Grazing Angles
  • Measurement
  • Military Research
  • Physics
  • Reverberation
  • Ridges
  • Scattering
  • Standards
  • Two Dimensional

Readers

  • Acoustical Oceanography.
  • Coastal Oceanography