Data produced as part of ESA Terrafirma project. The PSI processing has been carried out by TRE (). PSI processing used 32 scenes of Envisat data. Number of of points = 193352, Point density = PS/km2, Reference point location is lon: 1.40071608395, lat: 43.7072966663. 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.