Inversion of Surface Waves for Path Structure and Attenuation

Abstract

We have developed and tested a set of three computer programs which yield path correction estimates from surface wave observations. The sequence of steps involved in estimating travel path effects on phase and amplitude of a surface wave are: Retrieval of phase and group velocity dispersion curves from the seismogram by phase matched filtering; extraction of spectral amplitudes by narrow-band filtering; removal of multipath arrivals; Inversion of dispersion curves in terms of an average structure along the path; Calculation of synthetic seismograms from the average structure; and Estimation of source moment and attenuation function from synthetic/observed spectral ratios.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1981
Accession Number
ADA112348

Entities

People

  • B. F. Mason
  • J. B. Minster
  • J. L. Stevens
  • Jingxian Wang
  • W. L. Rodi

Organizations

  • Utility Systems Science and Software (United States)

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Computer Programs
  • Computers
  • Data Sets
  • Digital Data
  • Earth Models
  • Filtration
  • Frequency
  • Group Velocity
  • Matched Filters
  • Models
  • Phase Velocity
  • Rayleigh Waves
  • Surface Waves
  • United States
  • Wave Propagation
  • Waves

Fields of Study

  • Environmental science

Readers

  • Radar Systems Engineering.
  • Seismology