Bulletin of the Seismological Society of America; January 1960; v. 50; no. 1;
p. 81-85
© 1960 Seismological Society of America
Note on the variational and homogeneous layer approximations for the computation of Rayleigh-wave dispersion
FRANK PRESS and
HITOSHI TAKEUCHI
CALIFORNIA INSTITUTE OF TECHNOLOGY,, PASADENA, CALIFORNIA
GEOPHYSICAL INSTITUTE, TOKYO UNIVERSITY,, TOKYO, Japan
Abstract
An earlier study of upper mantle structure using a variational method is repeated using the homogeneous layer approximation programmed for an electronic digital computer to obtain dispersion curves. The dispersion curves computed by the two methods differ significantly but systematically so as to yield the same conclusion about the presence of the Gutenberg low-velocity zone in the upper mantle.
Copyright © 2009 by Seismological Society of America