The potential of microgravity technique in subsurface cavities detection at Chan Sow Lin Site in Kuala Lumpur, Malaysia: a case study

Modal Analysis of a Lava Tube Roof Complex: Tabernacle Hill, Utah, USA

“…To overcome these challenges, geophysical methods and remote sensing techniques have emerged as valuable tools for the non-invasive location of underground cavities. Among geophysical methods, electrical resistivity tomography (ERT) (Cardarelli et al 2006;Park et al 2014), ground penetrating radar (GPR) (Ebraheem and Ibrahim 2019;Pilecki et al 2021), microgravity (Arisona et al 2023), and seismic methods (Liang et al 2018;Rao et al 2021) have been widely applied to investigate karst networks, sinkholes, and underground instabilities (Liu et al 2023). Satellite-based monitoring techniques, such as Interferometric Synthetic Aperture Radar (InSAR), have also succeeded in detecting cavities and monitoring the evolution of sinkholes and subsidence-prone areas, demonstrating the ability to provide wide spatial data coverage with adequate geometric and temporal resolution (Malinowska et al 2019;Esposito et al 2021).…”