Mining Induced Subsidence Monitoring in Urban Areas with a Ground-Based SAR

Since June 2006 the Remote Sensing Laboratory (RSLab) of the Technical University of Catalonia is carrying on a subsidence monitoring activity in Salient, a village in the central Catalonia. The project, in collaboration with the Cartographic Institute of Catalonia (ICC), aims at studying the deformation phenomenon induced by salt mining extraction of the past years using a ground-based SAR sensor. Polarimetric data are being monthly acquired at X-Band in a perfect zero-baseline configuration. A detailed description of the on-going measuring campaign is here given. The advantages and drawbacks of using a terrestrial sensor are also stressed. Finally, first results carried out using a coherence approach are shown.