Effects of Small-Scale Heterogeneities on Regional Propagation

Abstract

Regional seismic-wave propagation at frequencies above 1 Hz is described in terms of ray theory, and the effects of small-scale heterogeneities are described statistically by means of the modern theory of wave propagation through random media. Observed features of regional propagation, such as the complexity of waveforms over tens or hundreds of seconds, the sensitivity of this complexity to the location of source or receiver, and the spread in arrival angles of waves at a receiving array, are explained by this propagation model. (jhd)

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Document Details

Document Type
Technical Report
Publication Date
Jan 21, 1990
Accession Number
ADA222810

Entities

People

  • Stanley M. Flatte

Organizations

  • MITRE Corporation

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Calibration
  • Classification
  • Diffraction
  • Doppler Effect
  • Frequency
  • Frequency Bands
  • Fresnel Zones
  • Naval Warfare
  • Physics
  • Physics Laboratories
  • Secondary Waves
  • Security
  • Seismic Waves
  • Undersea Warfare
  • Wave Propagation
  • Waveforms
  • Waves

Readers

  • Coastal Oceanography
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Space/Atmospheric Physics.