Data produced as part of ESA Terrafirma project. The PSI processing has been carried out by unknown (). PSI processing used 17 scenes of Envisat data. Number of of points = 20595, Point density = 11 PS/km2, Reference point location is lon: 14.5242675201, lat: 46.0974116372. 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.