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World Copernicus 30 m DEM — Cloud-Optimized GeoTIFF
A single-file, global digital elevation model at ~30 m resolution, packaged as a Cloud-Optimized GeoTIFF (COG) so it can be read by range request directly from the Hub (no full download needed). Derived from Copernicus DEM data.
File
| File | Description |
|---|---|
copernicus_world_30m_lerc.cog.tif |
Global 30 m elevation, COG, LERC_ZSTD compressed |
Raster specification
| Property | Value |
|---|---|
| Dimensions | 1,296,005 × 626,400 px |
| Bands | 1 (elevation, Float32, meters) |
| CRS | EPSG:4326 (WGS 84, geographic) |
| Pixel size | 0.0002777778° ≈ 1 arc-second (~30 m at equator) |
| Extent | lon −180.0014 → 180.0000, lat −89.9999 → 84.0001 |
| Layout | COG, 512 × 512 internal tiles, BAND interleave |
| Compression | LERC_ZSTD, MAX_Z_ERROR=1 (≤ 1 m vertical error) |
| Overviews | 11 levels (down to 633 × 306) |
| NoData | none set |
Reading without downloading
The COG layout + overviews let clients stream only the tiles/zoom they need.
GDAL (vsicurl):
gdalinfo /vsicurl/https://huggingface.co/datasets/OneAvailableUsername/worldcog/resolve/main/copernicus_world_30m_lerc.cog.tif
Python (rasterio):
import rasterio
url = "https://huggingface.co/datasets/OneAvailableUsername/worldcog/resolve/main/copernicus_world_30m_lerc.cog.tif"
with rasterio.open(url) as src:
print(src.profile)
# windowed read of a small AOI, only the needed tiles are fetched
window = rasterio.windows.from_bounds(144.9, -37.9, 145.1, -37.7, src.transform)
elev = src.read(1, window=window)
Notes
- Values are ellipsoidal/orthometric elevations in meters as provided by the source Copernicus DEM product.
LERC_ZSTDis lossy to a bounded 1 m vertical error — suitable for visualization and most analysis, not for sub-meter vertical work.
Attribution & licence
Produced from Copernicus DEM © ESA / European Commission. Use is subject to the Copernicus DEM licence terms — attribute the source when redistributing or publishing derived products. Confirm the exact source product (GLO-30 / GLO-90 / EEA-10) and licence before downstream use.
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