A Mutually Constrained Geophysical– Photogrammetric Workflow for Deep Groundwater Exploration in Karst Terrain, Tuban, Indonesia
Groundwater availability is a major issue in Klakeh Village, Bangilan Subdistrict, Tuban Regency, East Java, where karst topography leaves shallow groundwater scarce and seasonally unreliable. This study identifies deep groundwater potential by integrating passive audio-magnetotelluric (ADMT) sounding with UAV photogra...