Accession Number : ADA137250

Title :   Numerical Modelling of Seismic Interface Waves.

Descriptive Note : Memorandum rept.,

Corporate Author : SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)

Personal Author(s) : Schmidt,H

PDF Url : ADA137250

Report Date : 15 Dec 1983

Pagination or Media Count : 21

Abstract : A new numerical model, based on the linear theory of elasticity and Marsh's approximation of the Hankel transform, has been developed and used to model the excitation and propagation of interface waves in shallow-water sea-beds. Using realistic material parameters, the geometry and frequency-dependent propagation characteristics are analyzed and synthetic seismograms are produced. Basic properties of interface waves are discussed, and methods for direct evaluation of sea-bed properties from experimental results are proposed. (Author)

Descriptors :   *Seismic waves, *Ocean bottom, *Sediments, Mathematical models, Wave propagation, Interfaces, Shallow water, Numerical methods and procedures, Shear properties, Elastic properties, Velocity, Thickness, Low frequency, Transformations(Mathematics), Time series analysis, Underbottom, Basalt, Marine geophysics, Seismic data, Synthesis, Theory

Subject Categories : Physical and Dynamic Oceanography
      Seismology
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE