Waveform Inversion of Seismic Data

Abstract

Long range scientific objectives are to understand the variations of the oceanic crust as expressed by variabilities in its seismic velocity structure. Such variations occur both with geological age (caused by hydrothermal alteration and pore sealing) and spatially, such as, distance along-ridge (variations caused by ridge segmentation, faulting, hydrothermal cells, etc). For this project I have developed and applied seismic waveform inversion methods that allow variations in seismic velocities from independent seismic data sets to be quantified. The flexibility of this approach allows independent data from two sites to be jointly analyzed for velocity variations, as well as P and S data to be analyzed in order to constrain Poisson's Ratio.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1992
Accession Number
ADA273587

Entities

People

  • Peter R. Shaw

Organizations

  • Woods Hole Oceanographic Institution

Tags

DTIC Thesaurus Topics

  • Computer Vision
  • Data Sets
  • Eigenvalues
  • Inverse Problems
  • Inversion
  • Measurement
  • Residuals
  • Resilience
  • Secondary Waves
  • Seismic Velocity
  • Travel Time
  • Uncertainty
  • Waveforms
  • Waves

Fields of Study

  • Environmental science

Readers

  • Computational Modeling and Simulation
  • Seismology