Data produced as part of ESA Terrafirma project. The PSI processing has been carried out by AI ([email protected]). PSI processing used 73 scenes of ERS ENVISAT data. Number of of points = 337197, Point density = 465.101 PS/km2, Reference point location is lon: 19.0057230661, lat: 47.5091474444. 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.