Modal fields: a new method for characterization of random seismic velocity heterogeneity

Details

Serval ID
serval:BIB_045A8DCEE2D4
Type
Article: article from journal or magazin.
Collection
Publications
Title
Modal fields: a new method for characterization of random seismic velocity heterogeneity
Journal
Geophysical Research Letters
Author(s)
Goff J., Holliger K., Levander A.
ISSN-L
0094-8276
Publication state
Published
Issued date
1994
Peer-reviewed
Oui
Volume
21
Pages
493-496
Language
english
Abstract
Geologically and petrophysically constrained synthetic random velocity
fields are important tools for exploring (through the application
of numerical codes) the seismic response of small-scale lithospheric
heterogeneities. Statistical and geophysical analysis of mid- and
lower-crustal exposures has demonstrated that the probability density
function for some seismic velocity fields is likely to be discrete
rather than continuous. We apply the term ''modal'' fields to describe
fields of this sort. This letter details a methodology for generating
synthetic modal fields which satisfy the von Karman covariance function.
In addition, we explore some of the mathematics of ''modality'',
and define a modality parameter which quantifies the variation between
end members binary and continuous fields.
Create date
25/11/2013 18:28
Last modification date
20/08/2019 12:26
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