Data and MATLAB Codes for Pareto-MOPSO-Based Joint Modeling of Magnetotelluric and Rayleigh Wave Dispersion Data

This repository contains the processed field datasets and MATLAB codes associated with a Pareto-MOPSO-based multi-objective framework for the joint inversion of magnetotelluric (MT) and Rayleigh wave dispersion (RWD) data. These datasets and codes were used to generate the results reported in the associated article published in Nonlinear Processes in Geophysics (https://doi.org/10.5194/npg-33-267-2026). In this framework, MT and RWD data misfits are treated as separate objective functions. No mandatory structural coupling, cross-gradient constraint, or fixed petrophysical relationship is imposed between electrical resistivity and shear-wave velocity. Therefore, coupled and decoupled resistivity–velocity behaviours can be evaluated directly from the Pareto-optimal solution set. The repository includes MATLAB scripts for synthetic MT–RWD modelling, coupled and decoupled synthetic joint inversion cases, noise sensitivity tests, layering sensitivity tests, a joint Gauss–Newton benchmark, and field-data joint inversion workflows for the GURE–BOZC and KULC–ECEA station pairs. The synthetic MT and RWD datasets are generated internally by the corresponding MATLAB scripts. The processed field datasets include MT apparent resistivity and phase data and Rayleigh wave dispersion data from the GURE–BOZC and KULC–ECEA station pairs. The one-dimensional MT forward modelling routine is provided in this repository as the MATLAB function MT1D.m. Rayleigh wave dispersion forward responses are computed by calling gpdc.exe, which is part of the Geopsy software package. The gpdc.exe executable is not redistributed in this repository and should be obtained separately from the official Geopsy website: https://www.geopsy.org/download.php This repository is intended to support transparency, reproducibility, and long-term accessibility of the numerical experiments, synthetic tests, and field-data inversion results presented in the associated manuscript.