Monitoring Land Subsidence Using PS-InSAR Technique in Rawalpindi and Islamabad, Pakistan

Land subsidence is a major concern in vastly growing metropolitans worldwide. The most serious risks this scenario are linked to groundwater extraction and urban development. Pakistan’s fourth-largest city, Rawalpindi, its twin Islamabad, located at the northern edge of Potwar Plateau, witnessing extensive expansion. Groundwater (tube-wells) residents’ primary daily water supply these metropolitan areas. Unnecessarily pumping local inhabitant’s excessive demand for disturb sub-surface’s viability. Persistent Scatterer Interferometry Synthetic Aperture Radar (PS-InSAR) approach, along with Sentinel-1 (SAR) imagery, were used track land Rawalpindi-Islamabad. SARPROZ application was study set imagery obtained from January 2019 June 2021 descending ascending orbits estimate ground Rawalpindi-Islamabad area. results show significant increase (?25 ?30 mm/yr) ?69 mm/yr ?98 2020. suggested approach effectively maps, detects, monitors subsidence-prone terrains will enable better planning, surface infrastructure building designs, risk management related subsidence.