EU-DEM (raster) - version 1.1, Apr. 2016 is a resulting dataset of the EU-DEM v1.0 upgrade which enhances the correction of geo-positioning issues, reducing the number of artefacts, improving the vertical accuracy of EU-DEM using ICESat as reference and ensuring consistency with EU-Hydro public beta. Original data source: https://sdi.eea.europa.eu/catalogue/srv/eng/catalog.search#/metadata/3473589f-0854-4601-919e-2e7dd172ff50.
GeoCubes Europe builds upon the concept of GeoCubes Finland, which was originally developed as part of the of the Finnish Open Geospatial Information Infrastructure for Research (oGIIR, nowadays Geoportti) initiative. GeoCubes Europe serves as a harmonised, multi-resolution repository of raster-based geospatial data. Its primary goal is to facilitate spatial analysis processes by providing interoperable data sets that have been pre-processed for easy access and integration.
GeoCubes Europe contains a curated selection of geospatial data sets with coverage across Europe. These datasets are transformed into a common two dimensional grid and aligned to a unified set of resolution levels.
GeoCubes Europe applies the following resolution levels: 10, 20, 50, 100, 200, 500, 1000 and 10000 m, the above 10m levels are included as internal overviews in cloud-optimized geotiffs (original spatial data resolution 25m, resampling method bilinear). These rounded resolution values, rather than the traditionally used exponents of two in image pyramids, are selected to facilitate integration with external sources (like statistical data sets) and to follow the values commonly used in spatial analysis reporting. For easy transfer and processing of the GeoCubes Europe data sets, the content is subdivided in 1000 km x 1000 km blocks.
A so-called virtual raster mechanism is used to treat these individual files as a single, continuous data set. Data is stored in Cloud-Optimized GeoTIFF (COG) file formats, with each file representing a 1000 km x 1000 km block. The resolution levels are stored as internal GeoTIFF overview layers. The set of blocks is aggregated into a single content representation by using the GDAL's (Geospatial Data Abstraction Library) Virtual format (VRT) mechanism.
Direct link to VRT file: https://aquainfra-fgi.a3s.fi/europe/eudem_3035/2016/eudem3035_2016.vrt
