Magnetotelluric (MT) Sounding 1D Layered Model Resistivity Forward Modeling

Magnetotelluric (MT) sounding is a geophysical method used to investigate subsurface structures by measuring ground resistivity to infer properties of underground rocks and soils. This electromagnetic sounding technique can be applied to explore mineral deposits, groundwater, geothermal resources, and other subsurface features. The 1D layered model resistivity forward modeling approach represents one implementation method. In computational terms, this involves using electromagnetic waves at different frequencies to measure the resistivity of subsurface rocks and soils, reflecting resistivity changes at varying depths. The implementation typically utilizes recursive algorithms to calculate impedance propagation through layered media, often employing matrix propagation techniques or recurrence relations for efficient computation. Key advantages of this method include rapid data acquisition, relatively shallow investigation depth, and suitability for large-scale geological surveys. In other words, magnetotelluric sounding technology holds significant application value in geological exploration and resource development.