b862001d-6635-44c3-8448-d9e793188e8a European Environment Agency Kongens Nytorv 6 Copenhagen K 1050 Denmark sdi@eea.europa.eu pointOfContact 2025-10-21T12:49:49.487814Z ISO 19115/19139 1.0 EPSG:3035 EPSG:32740 EPSG:32738 EPSG:32620 EPSG: Imperviousness Change 2018-2021 (raster 20 m), Europe, 3-yearly, Jun. 2025 2025-05-01 creation 2025-06-18 publication 01.00 copernicus_r_3035_20_m_imdc-2018-2021_p_2018-2021_v01_r00 DAT-14-en 10.2909/b862001d-6635-44c3-8448-d9e793188e8a The Imperviousness Change (IMDC) 2018-2021 layer is part of the High Resolution Layer (HRL) Imperviousness. It contains the imperviousness change per pixel (increase or decrease in percentage) as derived from the difference between the Imperviousness Density (IMD) status layers for reference years 2018 and 2021, in an aggregated version of 20m spatial resolution. The production of the HRL Imperviousness is coordinated by EEA in the frame of Copernicus, the Earth observation component of the European Union’s Space programme. The product is a raster dataset with 20-meter grid spacing (spatial resolution) that covers the 38 Eionet member and cooperating countries as well as the United Kingdom (i.e. EEA38+UK). It is distributed as 100 x 100 km tiles that are fully conformant with the EEA reference grid. European Commission https://commission.europa.eu owner Copernicus Land Monitoring Service JRC-Copernicus-Land@ec.europa.eu https://land.copernicus.eu custodian European Environment Agency Kongens Nytorv 6 Copenhagen K 1050 Denmark sdi@eea.europa.eu http://www.eea.europa.eu publisher Copernicus Land Monitoring Service helpdesk JRC-Copernicus-Land@ec.europa.eu https://land.copernicus.eu/en/contact-service-helpdesk pointOfContact https://sdi.eea.europa.eu/catalogue/srv/api/records/b862001d-6635-44c3-8448-d9e793188e8a/attachments/SDI_IMDC_20m_paris.png Land cover Land use GEMET - INSPIRE themes, version 1.0 2008-06-01 publication geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme EEA38 (from 2020) United Kingdom Continents, countries, sea regions of the world. 2015-07-17T12:00:00 publication 2015-07-17 publication geonetwork.thesaurus.external.place.regions urban area sealing soil surface sealing land use built environment built-up area land cover landscape alteration GEMET 2021-11-30 publication geonetwork.thesaurus.external.theme.gemet European Spatial scope 2019-05-22 publication geonetwork.thesaurus.external.theme.httpinspireeceuropaeumetadatacodelistSpatialScope-SpatialScope EEA Management Plan 2023-05-31 publication 2021-08-25 publication geonetwork.thesaurus.local.theme.eea-mp Buildings and construction Soil Land use EEA topics 2022-10-18 publication 2020-09-24 publication geonetwork.thesaurus.external.theme.eea-topics no limitations to public access The Copernicus component is governed by Regulation (EU) No 2021/696 of the European Parliament and of the Council of 28 April 2021 establishing the Union Space Programme and the European Union Agency for the Space Programme and repealing Regulations (EU) No 912/2010, (EU) No 1285/2013 and (EU) No 377/2014 and Decision No 541/2014/EU. Within the Copernicus component, a portfolio of land monitoring activities has been delegated by the European Union to the European Environment Agency (EEA) and the DG Joint Research Centre of the European Commission. The Copernicus land monitoring products and services are made available on a principle of full, open and free access, as established by the Commission Delegated Regulation (EU) No 1159/2013 of 12 July 2013. Free, full and open access to the products and services of the Copernicus Land Monitoring Service is made on the conditions that: 1. When distributing or communicating Copernicus Land Monitoring Service products and services (data, software scripts, web services, user and methodological documentation and similar) to the public, users shall inform the public of the source of these products and services. 2. Where the Copernicus Land Monitoring Service products and services have been adapted or modified by the user, the user shall clearly state this. 3. Users shall make sure not to convey the impression to the public that the user's activities are officially endorsed by the European Union. grid 20 utf8 environment imageryBaseMapsEarthCover 2018-01-01 2021-12-31 -27.2461 46.582 34.543 72.0537 Pixel codes: 0 to 99: 0-100% Imperviousness Density decrease 100: Unchanged impervious areas 101-200: 0-100% Imperviousness Density increase 201: Unchanged non-impervious areas 255: Outside area GeoTIFF 1.0 https://geoserver.geoville.com/geoserver/nvlcc/ows?service=WMS&version=1.3.0&request=GetCapabilities OGC:WMS HRL_NVLCC_IMDC_20m CLMS_NVLCC_IMDC_C2018-2021_R20m https://wekeo.copernicus.eu/data?view=catalogue&facets=contactOrg%7EEuropean+Environment+Agency WWW:URL WEkEO Portal https://land.copernicus.eu/en/products/high-resolution-layer-imperviousness WWW:LINK-1.0-http--link Product Information & Technical Documentation https://doi.org/10.2909/b862001d-6635-44c3-8448-d9e793188e8a DOI Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication See the referenced specification The Imperviousness Change 2018-2021 layers (20m/100m) were derived by computing the difference between the Imperviousness Density status layers for the reference years 2021 and 2018 (IMD 2021 – IMD 2018) and applying a change mask, followed by an averaging operation to aggregate pixels to a coarser resolution (20m or 100m). The change mask, derived using the harmonic coefficients of NDVI data from 2018 and 2021, was used in the process as it served as a proxy for land-cover change. Changes to previous release (2018): - Introduction of a new production system and algorithm (U-Net CNN). - Reduction of in-situ data dependency for dataset production. - First Impervious Built-up Change (IBUC) layer (2018-2021).