Evaluation of the SBAS InSAR Service of the European Space Agency’s Geohazard Exploitation Platform (GEP) Galve Arnedo, Jorge Pedro Pérez-Peña, José Vicente Azañón Hernández, José Miguel Closson, Damien Caló, Fabiana Reyes-Carmona, Cristina Jabaloy Sánchez, Antonio Ruano Roca, Patricia Mateos, Rosa María Notti, Davide Herrera, Gerardo Béjar-Pizarro, Marta Monserrat, Oriol Bally, Philippe DInSAR GEP (Geohazard Exploitation Platform) SBAS Landslides Human-induced subsidence Hazard identification The analysis of remote sensing data to assess geohazards is being improved by web-based platforms and collaborative projects, such as the Geohazard Exploitation Platform (GEP) of the European Space Agency (ESA). This paper presents the evaluation of a surface velocity map that is generated by this platform. The map was produced through an unsupervised Multi-temporal InSAR (MTI) analysis applying the Parallel-SBAS (P-SBAS) algorithm to 25 ENVISAT satellite images from the South of Spain that were acquired between 2003 and 2008. This analysis was carried out using a service implemented in the GEP called “SBAS InSAR”. Thanks to the map that was generated by the SBAS InSAR service, we identified processes not documented so far; provided new monitoring data in places affected by known ground instabilities; defined the area affected by these instabilities; and, studied a case where GEP could have been able to help in the forecast of a slope movement reactivation. This amply demonstrates the reliability and usefulness of the GEP, and shows how web-based platforms may enhance the capacity to identify, monitor, and assess hazards that are associated to geological processes. 2018-01-23T11:46:47Z 2018-01-23T11:46:47Z 2017-12-11 info:eu-repo/semantics/article Galve, J.P.; et al. Evaluation of the SBAS InSAR Service of the European Space Agency’s Geohazard Exploitation Platform (GEP). Remote Sensing, 9(12): 1291 (2017). [http://hdl.handle.net/10481/49120] 2072-4292 http://hdl.handle.net/10481/49120 10.3390/rs9121291 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ info:eu-repo/semantics/openAccess Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License MDPI