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Urban areas developed above salt-karst systems are particularly sensitive to ground deformation processes driven by dissolution, suffosion, and anthropogenic disturbances. Detecting and monitoring these processes in densely built environments requires observation techniques capable of capturing small-scale morphological changes with high spatial resolution and repeatability. This study demonstrates the use of recurrent UAV-based LiDAR surveys to detect and measure ground instability in the town of Slanic Prahova (...

Urban areas built above salt deposits are especially vulnerable to ground instability caused by dissolution, suffosion, and human activities. Monitoring these environments is difficult due to the complex subsurface structures and dense infrastructure constraints. Understanding the dynamics of these processes requires combining multiple investigation and monitoring methods to capture both underground conditions and surface movements. This paper shares initial findings from an ongoing multi-method monitoring project...

Understanding environmental change relies on observational technologies that analyze the interaction between electromagnetic radiation and matter. Spectroscopy provides the physical foundation for many sensing techniques used in Earth sciences, operating across the ultraviolet (UV), visible (VIS), and infrared (IR) spectral domains. Technologies such as LiDAR, thermal imaging, photogrammetry, and optical remote sensing rely on these principles to observe environmental processes and monitor changes in the Earth sys...