This project aims to apply Hydraulic Tomography (HT) and Electrical Resistivity Tomography (ERT) to invert high-resolution imaging of subsurface hydrogeologic structures. By integrating hydrologic with geophysical data, we can improve the effectiveness of groundwater management and contaminant remediation. Through courses and practical fieldwork, participants will be familiar with subsurface characterization and data analysis workflows. 1. Training courses on theoretical principles, inversion, and model integration of tomographic methods. 2. Field trip involving in-situ measurements, data integration, and presentation.