Subsidence in coastal and alluvial landscapes is a dynamic process driven by both natural and anthropogenic forces. During the Quaternary, interactions among sedimentation, tectonics and climate variability have shaped the evolution and habitability of low-lying environments. Today, these settings face intensified challenges due to human-induced stressors such as land reclamation, groundwater extraction, rapid urbanization, and infrastructural loading, which exacerbate land subsidence and relative sea-level rise.

This session aims to explore the multifaceted nature of subsidence, ranging from sedimentary basins to urbanized floodplains, integrating insights from sedimentology, geotechnics, hydrogeology, geomorphology, remote sensing, and geodesy to enhance our knowledge of past and present deformation processes. We encourage studies that address multi-disciplinary and innovative approaches, including advanced monitoring techniques, numerical and AI-based modeling, and decision-support frameworks aimed at risk mitigation and adaptive planning for densely populated coastal zones and deltas.