HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Quantifying uncertainties on the solution model of seismic tomography

Abstract : Reflection tomography allows the determination of a propagation velocity model that fits the traveltime data associated with reflections of seismic waves in the subsurface. A least-squares formulation is used to compare the observed traveltimes and the traveltimes computed by the forward operator based on a ray tracing. The solution of this inverse problem is only one among many possible models. A linearized a posteriori analysis is then crucial to quantify the range of admissible models we can obtain from these data and the a priori information. The contribution of this paper is to propose a formalism which allows us to compute uncertainties on relevant geological quantities for a reduced computational time. Nevertheless, this approach is only valid in the vicinity of the solution model (linearized framework), complex cases may thus require a nonlinear approach. Application on a 2D real data set illustrates the linearized approach to quantify uncertainties on the solution of seismic tomography. Finally, the limitations of this approach are discussed.
Document type :
Journal articles
Complete list of metadata

Cited literature [21 references]  Display  Hide  Download

Contributor : Pascale Mallaret Connect in order to contact the contributor
Submitted on : Wednesday, September 11, 2019 - 2:40:55 PM
Last modification on : Wednesday, September 15, 2021 - 12:12:03 PM
Long-term archiving on: : Friday, February 7, 2020 - 11:06:37 PM


Files produced by the author(s)





Carole Duffet, Delphine Sinoquet. Quantifying uncertainties on the solution model of seismic tomography. Inverse Problems, IOP Publishing, 2006, 22 (2), pp.525-538. ⟨10.1088/0266-5611/22/2/009⟩. ⟨hal-02284112⟩



Record views


Files downloads