Data produced as part of ESA Terrafirma project. The PSI processing has been carried out by TRE (
[email protected]). PSI processing used 31 scenes of ERS-1 ERS-2 data. Number of of points = 831, Point density = 36.17 PS/km2, Reference point location is lon: 10.9597039904, lat: 44.1885174341. 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.