Magnetotelluric 2D Forward Modeling Program

Resource Overview

Developed a MATLAB-based magnetotelluric 2D forward modeling program using finite difference method for creating various geological models. The synthetic data with added noise can be used for subsequent inversion studies.

Detailed Documentation

I have developed a MATLAB computer program for 2D magnetotelluric forward modeling. The program implements the finite difference method to accurately simulate electromagnetic field responses across various geological structures. Key algorithmic features include: - Discretization of Maxwell's equations using staggered grid finite differences - Implementation of perfect matched layer (PML) boundary conditions - Support for anisotropic conductivity models with tensor representations - Frequency-domain solution using direct matrix solvers for efficiency The generated synthetic data can be contaminated with controlled noise (using Gaussian or percentage noise models) to simulate real-field conditions. This noise-added data serves as input for subsequent inversion workflows, enabling: - Validation of inversion algorithms - Sensitivity analysis of geological parameters - Uncertainty quantification in model recovery This implementation provides valuable insights into subsurface electrical structures and serves as a robust foundation for magnetotelluric inversion research and geophysical exploration studies. The modular code structure allows easy extension to 3D modeling and incorporation of additional geological constraints.