Modal Inversion SW06 Experiment

Abstract

Develop methods for rapid assessment of sediment properties relevant for acoustic propagation in a range-dependent shallow water environment. Modal dispersion data have been used in inversion schemes that estimate sediment properties in a range-independent environment. This method has been extended to include range-dependent environment. In the Shallow Water 2006 experiment data were collected to perform inversions using both mode dispersion data and mode eigenvalues. The overlapping data sets collected during the experiment provide a direct means of comparison and evaluation of compressional wave speed profile estimates from mode dispersion data and mode eigenvalues. Inversion scheme that uses the modal dispersion data for estimating sediment acoustic properties in a range independent environment has been described in the literature [1, 2]. This approach has been modified to determine the sediment properties in a range-dependent environment as outlined in [3].

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2010
Accession Number
ADA542081

Entities

People

  • Subramaniam D. Rajan

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Properties
  • Agreements
  • Broadband
  • Data Sets
  • Dispersions
  • Eigenvalues
  • Electronic Mail
  • Environment
  • Experimental Data
  • Frequency
  • Information Operations
  • Inversion
  • Sediments
  • Shallow Water
  • Travel Time
  • Waves

Readers

  • Acoustical Oceanography.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)