README - CLC2018 ------------------------------------ Layer name: U2018_CLC2018_V2020_20u1 Version 2020 20u1 (dated 02/2020): First Update of Version 20 Database covers 39 countries. Separate databases / files for DOMs are included. See https://land.copernicus.eu/user-corner/technical-library/clc-country-coverage-1990-2018-v20u1 for full information about the coverage of this version. Vector version is created in ESRI GeoDatabase format. Some redundant lines between neighbouring polygons with the same code are still present in database, but only as result of persisting ‘adaptive tilling’ procedure limitation of ArcGIS. Polygons under MMU 25 Ha can be present along national borders and along 'adaptive tilling' tiles boundaries. Polygons (slivers) under 0.1 Ha can be present only along 'adaptive tilling' tiles boundaries. Raster version is created in 100m resolution in GeoTiff format, using CELL_CENTER method for the rasterizing. File naming coventions: Filename is composed of combination of information about update campaign, data theme and reference year and version specification (including release year and release number) UPDATE CAMPAIGN | THEME | REFERENCE YEAR | RELEASE YEAR | RELEASE NUMBER UPDATE CAMPAIGN: • update campaign refers to the year of the CLC campaign, when the file content was last modified or updated THEME: • theme refers to specific CLC layer type: clc - refers to status layer, cha - refers to change layer REFERENCE YEAR: • reference year refers to the year for which CLC information included in the file were mapped RELEASE YEAR: • release year refers to the year of CLC data release RELEASE NUMBER: • release number refers to a sequential numbering of CLC data releases. Initially it is named as a beta version (e.g. 20b2) until the new complete final version is ready covering the full territory (e.g. 20). Any subsequent minor update is recorded as incremental number in suffix (e.g. 20u1) Examples: U__V_ status file name: U2006_CLC2000_V2020_20b2' means U2006 - last modification / update of the file is from the 2006 mapping campaign CLC2000 - file contains CLC status data for reference year 2000 V2020_20b2 - file was released in 2020 as second beta version (incomplete) of version 20 change file name: file name 'U2018_CHA1218_V2020_20u1' means U2018 - last modification / update of the file is from the 2018 mapping campaign CHA1218 - file contains CLC change data between reference years 2012 and 2018 V2020_20u1 - file was released in 2020 as a first update of final version 20 Change layers in raster ---------------------- In order to keep 8bit resolution for raster version, change layers are divided into two files. Vector file name: U2018_CHA1218_V2020_20u1 Raster files name: U2018_CHA1218_12_V2020_20u1 - file contains consumption part of change (‘from’ code) U2018_CHA1218_18_V2020_20u1 - file contains formation part of change (‘to’ code) Overseas countries and territories - Overseas departments (DOMs) ---------------------------------------------------------------- Overseas countries and territories are delivered as separate package to keep consistency between vector and raster delivery. Structure of the delivery and file naming conventions are the same except DOM specification (country code and DOM code) suffix. UPDATE CAMPAIGN | THEME | REFERENCE YEAR | RELEASE YEAR | RELEASE NUMBER | COUNTRY CODE | DOM CODE Example: U__V___ file name: U2006_CLC2000_V2018_20b2_FR_GLP' means U2006 - last modification / update of the file is from the 2006 mapping campaign CLC2000 - file contains CLC status data for reference year 2000 V2018_20b2 - file was released in 2018 as second beta version (incomplete) of version 20 FR - file is for French territory GLP – DOM name is Guadeloupe In order to keep 8bit resolution for change layers, they are divided into two files. U2018_CHA1218_12_V2020_20u1 - file contains consumption part of change (‘from’ code) U2018_CHA1218_18_V2020_20u1 - file contains formation part of change (‘to’ code) Change log (from previous release): Version 20u1 ------------ Release date: 24-02-2020 Main purpose of the release: Maintenance / Correction of final CLC2018 data. Changes from previous release (20): • File naming conventions simplified and better described. New file naming convention has been introduced based on user feedback on version 20. Filename is composed of combination of information about update campaign, data theme and reference year and version specification (including release year and release number). See https://land.copernicus.eu/user-corner/technical-library/clc-file-naming-conventions-guide-v20u1 • All raster layers are back in 8 bit GeoTIFF. Modification is introduced based on the user feedback on version 20. In order to keep 8 bit resolution for raster change layers, they are divided into two files - representing consumption (from) and formation (to) part of change. See https://land.copernicus.eu/user-corner/technical-library/clc-country-coverage-1990-2018-v20u1 for full information about the coverage of this version. Version 20 ---------- Release date:1-05-2019 TR was added to CLC2018 layer. Repaired FR data were uploaded to CLC2018 layer. Misinterpretation in BE database reported by users was repaired in CLC2018 layer Faroe Islands (DK) added to CLC2018 layer. See https://land.copernicus.eu/user-corner/technical-library/clc-country-coverage-1990-2018-v20 for full information about the coverage of this version. Version 20b2 ------------ Release date: 19-12-2018 IT was added to CLC2018 layer. Coding for rasters changed - rasters contains directly CLC codes/changes values. So status rasters produced as 16-bit depth, change rasters produced as 32-bit depth See https://land.copernicus.eu/user-corner/technical-library/clc-country-coverage-v20b2/view for full for full information about this version coverage Version 20b1 ------------ Release date 16-11-2018 Initial version for CLC2018 layer. Only raster file re-rasterized by CELL CENTRE method was delivered. Data for IT and TR still missing Prepared by GISAT 02/2020 For more information contact tomas.soukup@gisat.cz, miroslav.kopecky@gisat.cz