A New Scheme for Acoustical Tomography of the Ocean

Abstract

LONG-TERM GOALS. The long-term goal is to develop a remote sensing technique to infer ocean inner 3-D structure using acoustical means. This technique should provide an affordable mean of studying ocean dynamics on different temporary and spacial scales. OBJECTIVES. The objective is to develop a new robust scheme of the acoustical tomography of the ocean of meso- to global scales which is able to infer a 3-D ocean inner structure using simple tonal low-frequency acoustic signals and vertical line receiving arrays. The inversion scheme should be based on measurements of horizontal refraction angle (HRA) related to different acoustic modes rather that travel time along different rays. Both inhomogeneity of the sound speed field and ocean current should be retrieved.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1999
Accession Number
ADA629893

Entities

People

  • Alexander G. Voronovich
  • E. C. Shang

Organizations

  • National Oceanic and Atmospheric Administration

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Acoustic Signals
  • Acoustic Tomography
  • Acoustics
  • Crystal Lattice Vibrations
  • Frequency
  • Internal Waves
  • Measurement
  • Ocean Currents
  • Oceans
  • Refraction
  • Remote Sensing
  • Simulations
  • Three Dimensional
  • Tomography
  • Two Dimensional
  • Underwater Acoustics

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.

Technology Areas

  • AI & ML