Geometries (coastline, transitional waters, inland waters, dams, culverts, and river network), topological relationships and topological Global European Environment Agency Kongens Nytorv 6 1050 Copenhagen Denmark (+45) 33 36 71 00 Improved functionality consistency have been significantly improved. EU-Hydro The feature data extraction in the EU-Hydro upgrade has been more accurate than first EU-Hydro due to the use of Very High Resolution http://land.copernicus.eu The number of hydrographic objects has been increased, mainly in this http://ec.europa.eu/growth/sectors/space/copernicus feature classes: river network, inland water, culverts and islands. http://www.eea.europa.eu UA N2K EU-DEM Image Data (2,5 metre resolution). HRL Visualization of the coastline improvement in Duero basin. Dissemination RZ According to Copernicus data and information policy regulation. Land Monitoring October 2015 Space HR-VHR Mosaics Reference Data: EU-Hydro CLC Copernicus Land Monitoring Service – Introduction EU-Hydro is based on classification of Image 2006, and for all EEA39 countries provides a river network and a drainage model with catchments and drainage lines (derived from EU-DEM). Geographical Coverage Mapping Units: 33 EEA members: Austria, Belgium, Bulgaria, Croatia, Cyprus, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxemburg, Malta, Netherlands, Norway, Poland, enriching of the dataset with new features. Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. 6 cooperating countries: Albania, Bosnia and Herzegovina, the River Network: 1:30.000 scale resolution for linear objects and a Former Yugoslav Republic of Macedonia (F.Y.R.O.M.), Montenegro, minimum 1:50.000 scale resolution for derived polygons. Serbia and Kosovo. Drainage Network: production scale for generation of vector objects (lines) ranges from 1:30.000 to 1:50.000. InlandWater: a large body of water entirely surrounded by land. Czech Republic, Denmark, Estonia, Finland, France, Germany, The objective of EU-Hydro upgrade is enhancement of quality and Recommendation for use: River_Net_p: a naturally flowing watercourse. Transit_p: any water the level of which changes periodically due to tidal action. Coastal_p: coastlines and shorelines of these feature class are used as additional feature for orientation to attach inland hydrologic features. RiverBasins: is the area that a river drains including its tributaries. Formats: ESRI File Geodatabase including HYDRO Feature Dataset that includes 12 Feature Classes in turn. Geodatabase format is compatible with shapefile format due to the implementation of the data model (field name with less than 10 characters). Temporal Reference: The feature data extraction has been performed with imagery from 2006, 2009 and 2012. Content of River Network dataset Culverts: an enclosed channel for carrying a watercourse (for example: a stream, a sewer, or a drain) under another watercourse (for example: a stream, a canal, or a ditch). Visualization of Duero basin at 1:50.000 scale Minimum Mapping Unit (MMU): 1 ha / 10000 square metres. The feature data extraction has been performed by photointerpretation of Very High Resolution Image Data (2011 - 2013), with resolution of 2.5 metres. Topological relationships in EU-Hydro data model. Content of Drainage Network dataset Drainage Network Streams, Nodes and Basins automatically extracted directly from the EU-DEM dataset at the original 25 m pixel resolution by using standard functions of the open source GRASS GIS Nodes: a point joining two segments. They are placed on headwaters and mouths of each watercourse, on confluences of watercourses, on inlets and outlets of watercourses into water polygons and in dams derived from ECRINS. and the Atlantic islands), as well as 6 complete L1 drainage regions Canals_l: an artificial waterway with no flow, or a controlled flow, usable or built for navigation. Drainage Network Streams, Nodes and Basins. Drainage Network Ditches_l: an artificial waterway with no flow, or a controlled flow, usually unlined, used for draining or irrigating land. software. The dataset is divided into 5 regions covering the major isolated land-masses (Scandinavia, British islands, Asia (TR), Iceland covering the continental Europe. Attribute fields are used for relating topology values are computing according to Strahler, Horton, Shreve and Hack standard ordering systems, as well as based on Topological dimension of the network. Resolution: River Network derived from 20 metres resolution imagery. Feature data extraction performed with 2.5 metres resolution imagery. Drainage Network derived from 25 metres resolution DEM. River_Net_l: a naturally flowing watercourse. Polygon coverages of Horton hierarchical network sub-basins are Canals_p: an artificial waterway with no flow, or a controlled flow, usable or built for navigation. connected by their object_id values to the main layer of Drainage Ditches_p: an artificial waterway with no flow, or a controlled flow, usually unlined, used for draining or irrigating land. Network. computed for levels 1, 2, 3, 4, 5, 6, and 7. All those layers are Network Basins, and through it – to Streams/Nodes of the Drainage
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