Simplified numerical models for the generation of synthetic reflection profiling seismograms and synthetic reflection/refraction seismograms.
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Authors
Lodge, Charles David
Subjects
numerical
seismic
model
seismic
model
Advisors
Andrews, Robert S.
Date of Issue
1970-04
Date
April 1970
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
Two numerical models were developed which generate synthetic
seismograms in formats similar to those of records obtained in field
exploration. The models solve the hyperbolic wave equations in one
and two dimensions by finite difference approximations in initially
undeformed solution domains of transversely-isotropic layered media
subjected to a time varying, dilatational forcing stress applied at
the surface. A velocity attenuation term was included in the models
to inhibit strong boundary reflections.
The one-dimensional model produces synthetic reflection profiling
seismograms for arbitrary horizontal or dipping layers. The two-dimensional
model generates synthetic reflection/refraction seismograms
for horizontal layered media with arbitrary distribution of wave
velocities, Poisson's ratio and density. Several sample records were
produced for some representative velocity structures. The synthetic
seismograms were interpreted and gross correlation was carried out
as if they were actual field records.
Type
Thesis
Description
Series/Report No
Department
Oceanography
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.