ICC’s project for DInSAR terrain subsidence monitoring of the catalonian territory

The Institut Cartografic de Catalunya (ICC) has initiated a project for continuous subsidence monitoring of the Catalonian territory using an automatic advanced DInSAR processor (DISICC). Data used in this project are acquired by ERS-1/2, ENVISAT, and the future ALOS, TerraSAR-X and Radarsat 2 satellites. The processor performs the co-registration, interferogram generation, filtering, topographic cancellation, linear deformation model adjustment and non-linear displacement estimation, allowing the generation of classical and advanced DInSAR results combining information from different orbits and satellites. The project consists of the usage of 10 different ERS/ENVISAT frames, 5 descending and 5 ascending, completely covering the desired area, which is about 31.930 Km2. The data temporal frame comprises images acquired from 1992 to 2006.