Application of Displacement Map Produced by Interferometric Synthetic Aperture Radar Technique in Height Datum Determination in the Subsidence Area

Damages due to subsidence such as destruction of watering system and agricultural fertile soil, wells increasing, damage to the roads, bridges and high ways and disordering in the water and gas supplying usually are irreparable and costly. As a huge amount bench marks of height network of Iran are placed in the subsidence area, changing their heights is a challenge for NCC. In this study, a new application of displacement map produced by interferometric synthetic aperture radar technique in height datum determination in the subsidence area of Tehran, Qom and Isfahan provinces is introduced. Leveling observation of these areas is confirmed this application of InSAR.