This folder contains the surrogate models of different frequencies (1e-3, 1e-2, 1e-1, 1, 10 and 100 Hz) for the resistivity (e.g. 'TE_Resistivity_1Hz.joblib'), 
phase (e.g. 'TE_Phase_1Hz.joblib'), as well as the model for the impedance ('TE_Z_TransformCtoR.joblib') for the TE- and TM-Mode, as well as the corresponding basis functions (e.g. 'TE_Phase_XXHz_bfs.npy'). The joblib version 1.2.0 is used. The corresponding publication to it is called 'Sensitivity Analysis using Physics-Based Machine Learning: An Example from Surrogate Modelling for Magnetotellurics' (GJI).