Data produced as part of ESA Terrafirma project. The PSI processing has been carried out by TRE ([email protected]). PSI processing used 45 scenes of ERS-1 ERS-2 data. Number of of points = 37399, Point density = 48 PS/km2, Reference point location is lon: 23.2973873, lat: 42.6772095. Terrafirma service providers have been validated by the ESA funded ValProj (http://www.terrafirma.eu.com/product_validation.htm) and passed an assessment to be a certified service provider.