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Refraction travel-time tomography based on adjoint state techniques

Abstract : Standard refraction travel-time 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 travel-time misfit function. We use the eikonal equation for the forward modeling, and iterate with a conjugate gradient method. Numerical examples demonstrate the efficiency of the method.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00535856
Contributor : Herve Chauris <>
Submitted on : Saturday, November 13, 2010 - 2:55:59 PM
Last modification on : Thursday, September 24, 2020 - 4:34:06 PM

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  • HAL Id : hal-00535856, version 1

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Cédric Taillandier, Mark Noble, Hervé Chauris, Pascal Podvin, Henri Calandra. Refraction travel-time tomography based on adjoint state techniques. SIAM conference on mathematical and computational issues in Geosciences, Mar 2007, Santa Fe, United States. ⟨hal-00535856⟩

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