Quantifying Source Excitation and Path Effects for High Frequency Regional Waves

Abstract

This research is directed at investigation of regional wave excitation and propagation in complicated crustal waveguides using numerical simulations. The report covers three major approaches: (1) A finite-difference plus slowness analysis method for investigating near-source Lg-wave excitation and partitioning; (2) The half-space screen method for simulating high frequency Lg-wave propagation; and (3) A boundaty element method for calculating Lg-wave propagation in the crustal waveguide with uneven surface topography.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2004
Accession Number
ADA430639

Entities

People

  • Ru-shan Wu
  • Thorne Lay
  • Xiao-bi Xie

Organizations

  • University of California, Santa Cruz

Tags

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Boundaries
  • Boundary Element Methods
  • Diffraction
  • Elastic Waves
  • Explosives
  • Frequency
  • Frequency Bands
  • Scattering
  • Seismic Waves
  • Simulations
  • Three Dimensional
  • Topography
  • Two Dimensional
  • Ultrasounds
  • Wave Propagation
  • Waveguides

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Seismology

Technology Areas

  • Space