MT2D

MT2D is a two-dimensional (2D) magnetotelluric (MT) or radio-magnetotelluric (RMT) forward modelling software. It uses unstructured grids and allows for arbitrary distributions of conductivity, dielectric permittivity and magnetic permeability. The algorithm uses the total-field approach.

To deal with broadband frequencies (such as MT and RMT problems), a 2D grid of unstructured triangles including the air is used for both TE and TM modes.

A total and scattered field decomposition (TSFD) in combination with perfectly-matched layers (PML) can be applied for different setups.

The TSFD setups are described in the following research paper:

Buntin, L. M., Kalscheuer, T., Kreiss, G., and Ren, Z. (2023). Improved accuracy of plane-wave electromagnetic modelling by application of the total and scattered field decomposition and perfectly matched layers, Geophysical Journal International, 235, 1201–1217, https://doi.org/10.1093/gji/ggad264