Accelerating Convergence Techniques and Grid Spacing Problems in Two-Dimensional Magnetotelluric Modelling

Iterative two-dimensional magnetotelluric calculations commonly converge very slowly, especially when applied to large grids. Consequently, the authors have used three methods of accelerating the convergence which supplement each other, and thereby make the iteration process about ten times faster. The influence of grid spacing on the accuracy of apparent resistivity curves varies