Active landslides inventory update based on EGMS data for slowing moving landslides in a hilly environment

The European Ground Motion Service (EGMS) products expand the InSAR utility in geohazards investigation, including mapping and monitoring various surface processes such as land subsidence, volcanic activity, landslides, etc. Access to such data is crucial, particularly for urban areas needing continuous monitoring of structures and infrastructures affected by landslides. Landslide deformations have become a significant threat in the context of climate change and global urbanization nowadays. The EGMS products offer consistent and reliable InSAR measurements of ground deformations with millimeter accuracy, which can be accessed and downloaded from the platform. The measurements include GNSS-calibrated full-resolution velocity and displacement time series for the ascending and descending orbits and calculated displacement vectors in the vertical and E-W directions, resampled to a 100 x 100 m grid. We focus on the slow-moving landslides with typical velocities of 16 mm/year, specific to the Moldavian Plateau, Eastern Romania. We exploit the ascending and descending full-resolution data for the 2016 – 2022 interval to identify the active landslides. Based on an existing landslide inventory extracted from high-resolution LiDAR DEM, we analyze the moving landslide of the current inventory.