On the applicability of Persistent Scatterers Interferometry (PSI) analysis for long term CO2 storage monitoring

► Natural terrains might hamper performance of PSI for CO2 storage monitoring. ► Constraints imposed on PSI by surface deformation evolution and scales are discussed. ► Analytical model is developed for quick surface displacements prediction. ► Installation of corner reflectors CR can enhance the PSI performance. ► CR location optimized in an iterative strategy through geomechanical prediction.