P063 ADAPTIVE TRAVEL-TIME AND RAY- PARAMETER INVERSION OF DENSELY SAMPLED 2-D SEISMIC DATA Abstract 1 I. TRINKS 1 S. SINGH 2 C. CHAPMAN 3 P. BARTON 1 M. BOSCH 4 A. CHERRETT 5 We present a new 2-D travel-time and ray-parameter tomography algorithm especially designed for the inversion of densely sampled seismic data. Until now most of the available travel-time inversion schemes have been limited to sparsely sampled datasets with crude regular model parameterizations. The algorithm described here allows for an adaptive parameterization based on Delaunay triangulation. The forward problem is solved using initial-value ray tracing and the travel-times are


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