Computational methods for inverse problems in geophysics: inversion of travel time observations

Details Computational methods for inverse problems in geophysics: inversion of travel time observations Computational methods for inverse problems in geophysics: inversion of travel time observations

Feb 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pepi...21..120p&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 21, Issue 2-3, p. 120-125.

Physics

2

Scientific paper

General ways of solving various inverse problems are studied for given travel time observations between sources and receivers. These problems are separated into three components: (a) the representation of the unknown quantities appearing in the model; (b) the nonlinear least-squares problem; (c) the direct, two-point ray-tracing problem used to compute travel time once the model parameters are given. Novel software is described for (b) and (c), and some ideas given on (a). Numerical results obtained with artificial data and an implementation of the algorithm are also presented.

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