Deep Regional Electrical Resistivity Dataset of Taiwan Derived from Magnetotelluric Surveys

This repository contains a regional electrical resistivity dataset of Taiwan compiled from magnetotelluric (MT) surveys conducted over more than three decades. The dataset includes observations from 406 MT stations acquired between 1995 and 2026, providing broad spatial coverage across the island and its tectonically active orogenic belt. To produce a consistent dataset, the original MT measurements from different survey periods were reprocessed using a unified workflow. The MT responses at each station were interpreted through one-dimensional (1D) inversion, generating resistivity–depth models that describe the vertical electrical structure beneath each measurement site. These station-based models constitute the primary processed data provided in this repository. The individual 1D resistivity profiles were subsequently combined to develop a regional three-dimensional (3D) resistivity framework for Taiwan. The workflow for data processing and model construction was implemented using open-source Python tools. Grid generation and visualization were performed using the PyVista library, while the resulting 3D model can be interactively explored with ParaView. The compiled dataset spans the full extent of Taiwan, covering approximately 38,019 km² with a perimeter of about 919 km. The resistivity structure is resolved to a depth of roughly 60 km. The final 3D grid has a horizontal spacing of 5 km and a vertical spacing of 0.5 km, producing approximately 181,440 model cells.