Solving surface-consistent statics with multigrid

John Millar, John C. Bancroft

By expressing the surface-consistent equations as a matrix operation, a multigrid method was adapted to separate source and geophone statics. The method is compared to an approximation allowing us to perform a direct inversion, and a Gauss-Seidel relaxation method. Multigrid shows a greater ability to resolve the long-wavelength components of the statics on a synthetic data set.