Environmental Fluctuations in Forward Scatter and Reverberation

Abstract

The objective of this research as to measure fluctuations in mid-frequency (roughly 1-10 kHz) shallow water forward scatter and reverberation due to time-evolving variability in the sea surface and water column environment as well as source motion. The observations were used to quantify the uncertainty in seafloor geoacoustic inversions due to environmental variability and their subsequent use in reverberation level predictions. The focus of this research is on understanding the relationship between fluctuations in mid-frequency shallow water forward scatter and reverberation due to time-evolving variability in the sea surface and water column environment as well as source motion. In addition, the impact of environmental variability on the uncertainty in mid-frequency seafloor geoacoustic inversions and their subsequent use in reverberation level predictions is of interest. A major component of this project has been participation in the planning and execution of the ONR Target and Reverberation Experiment 2013 (TREX13) which was carried out in April-May 2013 off Panama City, FL.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2015
Accession Number
AD1024343

Entities

People

  • William Hodgkiss

Organizations

  • University of California Regents

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Communications
  • Active Sonar
  • Data Analysis
  • Deep Water
  • Digital Communications
  • Environment
  • Frequency
  • Frequency Bands
  • Inversion
  • Losses
  • Physics Laboratories
  • Reverberation
  • Seabed
  • Shallow Water
  • Transmission Loss
  • Uncertainty
  • Water

Readers

  • Acoustical Oceanography.