Abstract
P054 Refraction Traveltime Tomography Based on Adjoint State Techniques C. Taillandier* (Ecole des Mines de Paris) M. Noble (Ecole des Mines de Paris) H. Chauris (Ecole des Mines de Paris) P. Podvin (Ecole des Mines de Paris) H. Calandra (Total) & J. Guilbot (Total) SUMMARY Standard refraction traveltime tomography based on ray tracing techniques has difficulties to handle large datasets that come from current seismic acquisition surveys. To overcome this problem we suggest a refraction tomography method based on adjoint state techniques to derive the gradient of the traveltime misfit function. We use the eikonal equation for the forward modelling
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