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Constructing P-velocity models to fit restricted sets of travel-time data

INSTITUTE OF GEOPHYSICS AND PLANETARY PHYSICS UNIVERSITY OF CALIFORNIA,, SAN DIEGO, LA JOLLA, CALIFORNIA 92037

Abstract

A scheme recently proposed by the authors for constructing Earth models which fit a given finite set of gross Earth data is applied to the problem of constructing a P-velocity structure which, within experimental error, fits the observed travel times in the range = 25°(5°)95°. Three such models are obtained, all of which fit the observed travel times with residuals less than 0.06^s, whereas 0.5^s is the estimated standard error of the observations. The models differ mainly in the outer 700 km of the mantle.

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