data api · Europe

Core-DEM

Major TOM Core-DEM contains a global coverage of Copernicus DEM, each of size 352 x 352 pixels.

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Data offered docs-verified: elevation (Copernicus DEM GLO-30 derived, int16 metres, 30 m) · per-sample geoenrich attributes: elevation, cisi, precipitation, temperature, soil_clay, soil_sand, soil_carbon, soil_bulk_density, soil_ph, gdp, human_modification, population, admin_countries, admin_states, admin_districts
Coverage docs-verified: Global, over the land cells of the Major TOM grid (1,735,044 samples; 38.9% entirely water) · monotemporal (single epoch; acquisition dates not stated)
Resolution docs-verified: 30 m; each sample is a 10 km cell of 352 × 352 pixels (10,560 m per side)
Formats docs-verified: TACO v3 · Rumi
Access docs-verified: Public; anonymous HTTPS/S3 access via data.source.coop; no API key; free and open under the Copernicus DEM open licence (per DOCS credits; entry defers to product README)

Use cases llm-inferred: Terrain baseline for FRA and drainage strategy: extract DEM samples for a study area by Major TOM cell · Pre-screen candidate sites by geoenrich elevation before downloading full-resolution DEM tiles · Batch DEM extraction for regional hydrological or flow-path analysis across multiple cells · Screen per-cell soil and climate attributes (soil_clay, precipitation) for geotechnical or desk-study context
Audience llm-inferred: GIS analysts · hydrologists · flood risk consultants · drainage engineers · geotechnical engineers

Constraints llm-inferred: Water and no-coverage cells are stored as zero, so zero is not a distinct nodata value (38.9% of samples are entirely water; 457,527 fall outside Copernicus DEM coverage) · Monotemporal: single epoch, no time series · Values are near-lossless within 2 m, not exact · Requires taco-eo 0.10 or newer and the rumi reader; not a plain GeoTIFF workflow · Surface model (DSM), not bare-earth terrain · Entry regions tag says Europe, but DOCS describe global coverage · Licence is stated only as 'see product README' in the entry; DOCS cite the Copernicus DEM open licence

Verified via Source Cooperative API /api/v1/products/major-tom (public product, updated 2026-09-23).

Metadata observed 14/10/2026 · research sweep: manual-2026-10-15 (source.coop)