hp-Adaptive Simulation and Inversion of the Magnetotelluric Measurements The magnetotelluric (MT) method is a passive exploration technique that aims at estimating the resistivity distribution of the Earth’s subsurface, and therefore at providing an image of it. This process is divided into two different steps. The first one consists in recording…
“Simulation of elastic wave propagation in time harmonic domain using discontinuous Galerkin methods” The scientific context of this thesis is seismic imaging which aims at recovering the structure of the earth. As the drilling is expensive, the petroleum industry is interested by methods able to reconstruct images of the…
Finite element approximation of Helmholtz problems with application to seismic wave propagation. The main objective of this work is the design of an efficient numerical strategy to solve the Helmholtz equation in highly heterogeneous media. We propose a methodology based on coarse meshes and high order polynomials together with a…
