DORIS is an advanced downstream service for the detection, mapping, monitoring and forecasting of ground deformations, including landslides and ground subsidence, at different temporal and spatial scales and in various physiographic and environmental settings. DORIS integrates traditional and innovative Earth Observation (EO) and ground based (non-EO) data and technologies to improve our understanding of the complex phenomena that result in ground deformations, and to foster the ability of Environmental and Civil Protection authorities to manage the risks posed by ground deformations. DORIS delivers innovative products at the regional and local levels, tailored on the needs of national and local Civil Protection authorities.Within the project, DORIS, IREA contributes to the development of innovative products for DInSAR monitoring of surface deformation. IREA is responsible for the generation of time series and maps of deformation of a test site and jointly processing SAR data acquired by different sensors (eg ERS and ENVISAT). The goal is to make the most of very large data archives covering almost 20 years of acquisitions, and working on SAR data acquired by new generation sensors (Cosmo-SkyMed, ALOS, TerraSAR-X). The DORIS project, where the CNR is the prime, was held in collaboration with the University of Florence, y Minero de Espana Geological Institute (Spain), the Italian Space Agency, the Eotvos Lorand Geophysical Institute of Hungary (Hungary ), Tele-Tracking Europe Ltd., Information ALTAMIRA SL (Spain), GAMMA Remote Sensing (Switzerland), Booz & Company GmbH (Germany), Department of Italian Civil Protection, Federal Office for the Environment (Switzerland), Polish Geological Institute, National Research (Poland).