Copernicus Imperviousness Italy — Dataset

The High Resolution Layers related to Imperviousness are datasets produced under the Pan-European component of Copernicus Land Use and Coverage Monitoring Services (CLMS). They consist of the 2006, 2009, 2012 and 2015 time series and were produced using semi-automatic classification algorithms derived from the Normalised Difference Vegetation Index (NDVI) on high-resolution satellite images, supplemented by in-situ information. The datasets of Imperviosness consist of three different products: Imperviosness Degree (IMD) representing the ‘status layer’, Imperviousness Change (IMC) and Imperviousness Classified Change (IMCC) representing the ‘change layers’. The datasets of the Imperviosness Degree estimate the waterproofing (soil sealing) at the pixel level and are mapped as a degree of waterproofing expressed in percentage values from 0 to 100, the datasets of the Imperviousness Change (IMC) estimate the degree of change of waterproof cover from -100 % to + 100 % and the datasets of the Imperviousness Classified Change (IMCC) represent a classified product. The change layers IMC and IMCC refer to the time series 2006-2009, 2009-2012, 2012-2015 and in addition 2006-2012 to maintain temporal consistency with the CORINE land Cover. All Imperviousness products have a spatial resolution of 20 x 20 meters, in addition to having an aggregation at 100 meters (except for the IMCC dataset which is only 20 meters). The refresh rate is 3 years. The production of HRL Imperviousness was coordinated by the European Environment Agency within the European Copernicus programme involving the National Reference Centres on Land Cover of the Eionet network (for Italy, represented by ISPRA). More information can be found at https://land.copernicus.eu/pan-european/high-resolution-layers/imperviousness