Secretary of the Navy, Processor of Oceanography

Abstract

Continuing experiments in Ocean Acoustic Tomography include ten years of monitoring temperature in the North East Pacific. Scattering of sound by internal waves accounts for the penetration of sound into the geometric sound shadow zone; this has been a puzzle since the earliest days of SOFAR transmission. We have found a barely significant correlation of global sea level rise with a global decrease in salinity. Very low frequency acoustic noise (1 to 40 Hz) in the deep sea can be related to high frequency surface waves, with a possible noise "gap" centered at 25 to 35 Hz.

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Document Details

Document Type
Technical Report
Publication Date
Jul 20, 2009
Accession Number
ADA502759

Entities

People

  • Walter Munk

Organizations

  • University of California Regents

Tags

Communities of Interest

  • Biomedical
  • C4I
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Tomography
  • Acoustics
  • Climate Change
  • Engineering
  • Frequency
  • Geography
  • Geophysics
  • Human Factors Engineering
  • Internal Waves
  • Mechanical Engineering
  • Ocean Acoustic Tomography
  • Oceanography
  • Sea Level
  • Sea Level Rise
  • Surface Waves
  • Tomography
  • Waves

Fields of Study

  • Environmental science
  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Oceanography.
  • Strategic Security Studies