Data produced as part of ESA Terrafirma project. The PSI processing has been carried out by TRE (firstname.lastname@example.org). PSI processing used 39 scenes of ERS-1 ERS-2 data. Number of of points = 671138, Point density = 1266.3 PS/km2, Reference point location is lon: 20.871354052, lat: 37.729282807. 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.