{"id": "glo-esa-copdem-30m", "type": "Collection", "links": [{"rel": "items", "type": "application/geo+json", "href": "https://api.darly.io/collections/glo-esa-copdem-30m/items"}, {"rel": "parent", "type": "application/json", "href": "https://api.darly.io/"}, {"rel": "root", "type": "application/json", "href": "https://api.darly.io/"}, {"rel": "self", "type": "application/json", "href": "https://api.darly.io/collections/glo-esa-copdem-30m"}, {"rel": "license", "href": "https://spacedata.copernicus.eu/collections/copernicus-digital-elevation-model", "title": "Copernicus DEM licensing terms"}], "title": "GLO - ESA Copernicus DEM 30m", "extent": {"spatial": {"bbox": [[-180, -89.99986267089844, 179.99986267089844, 84.0001449584961]]}, "temporal": {"interval": [["2011-01-01T00:00:00+00:00", "2015-12-31T23:59:59+00:00"]]}}, "license": "proprietary", "keywords": ["DEM", "DSM", "elevation", "surface", "Copernicus", "GLO-30", "TanDEM-X", "ESA", "global", "30m"], "providers": [{"url": "https://spacedata.copernicus.eu/collections/copernicus-digital-elevation-model", "name": "European Space Agency (Copernicus Programme)", "roles": ["licensor"]}, {"url": "https://spacedata.copernicus.eu/collections/copernicus-digital-elevation-model", "name": "Airbus Defence and Space / DLR (TanDEM-X)", "roles": ["producer"]}, {"url": "https://registry.opendata.aws/copernicus-dem/", "name": "AWS Open Data", "roles": ["host"]}, {"url": "https://darly.io", "name": "Darly", "roles": ["processor"]}], "summaries": {"gsd": [30]}, "description": "Copernicus DEM GLO-30: a global Digital Surface Model at 30 m resolution, distributed by the European Space Agency under the Copernicus Programme.\n\n**Source & method:** A **Digital Surface Model (DSM)** \u2014 it represents the Earth's surface *including* buildings, infrastructure, and vegetation (not bare-earth terrain). Derived primarily from radar data acquired by the TanDEM-X mission (2011\u20132015) and edited to flatten water bodies, enforce coastlines, and remove outliers. This is a global reference elevation layer, not a lidar product.\n\n**Resolution:** 30 m (1 arc-second) nominal. Tiles are 1\u00b0\u00d71\u00b0 in WGS84; rows are a fixed 3600, while the number of columns decreases toward the poles (latitude-dependent longitudinal sampling), so per-item shape and transform vary by latitude.\n\n**Coordinate reference:** Geographic WGS84 (EPSG:4326); elevations in meters on the EGM2008 geoid (EPSG:3855).\n\n**Hosting:** Assets reference the public, anonymously readable COGs in the `copernicus-dem-30m` AWS Open Data bucket **in place** \u2014 Darly does not re-host or copy the pixels.\n\n**Coverage:** Global.\n\n**Documentation:**\n- [Copernicus DEM product page](https://spacedata.copernicus.eu/collections/copernicus-digital-elevation-model)\n- [AWS Open Data registry entry](https://registry.opendata.aws/copernicus-dem/)\n", "item_assets": {"dsm": {"type": "image/tiff; application=geotiff; profile=cloud-optimized", "roles": ["data", "dsm"], "title": "Digital Surface Model (DSM)"}}, "sci:citation": "European Space Agency, Sinergise (2021). Copernicus Global Digital Elevation Model (GLO-30). Distributed by OpenTopography / AWS Open Data.", "stac_version": "1.0.0", "stac_extensions": ["https://stac-extensions.github.io/item-assets/v1.0.0/schema.json", "https://stac-extensions.github.io/scientific/v1.0.0/schema.json"]}