Study of spatiotemporal evolution of landslides along the El Jebha-Amtar Corridor (Morocco) using InSAR techniques

Abstract

The El Jebha-Amtar corridor in northern Morocco experiences frequent landslides that threaten critical infrastructure, including the RN16 highway. This study employs Persistent Scatterer Interferometry (PSInSAR) with Sentinel-1 data (January–December 2019) to map ground deformation in the region, identifying displacements ranging from 20.71 mm uplift to -21.57 mm subsidence, especially concentrated near El Jebha. Analysis of rainfall data reveals its significant contribution to slope instability, with deformation patterns strongly influenced by the area’s complex geology, characterized by fractured metamorphic rocks and active faulting. This integrated approach offers valuable insights for developing targeted landslide risk assessment and mitigation strategies specific to the El Jebha-Amtar corridor.