data api · Global

Global harmonized land cover datasets at 10m and 30m resolution (2020—2024)

Harmonized global land cover maps at 10 m (2020) and 30 m (annual, 2020 to 2024) resolutions were generated using a deterministic, rule-based ensemble framework that integrates primary spatial backbones with specialized thematic and contextual layers. Using LCM-10, GLAD GLCLUC, and GLC_FCS30D as baseline inputs, the workflow sequentially applies prioritized conditional rules to refine generic categories into up to 44 detailed hierarchical classes. The classification incorporates specialized crop

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What's in it

Data offered docs-verified: land cover classes (up to 44 hierarchical classes) · 10 m land cover, 2020 · 30 m annual land cover, 2020–2024
Coverage docs-verified: Global · 2020 (10 m); 2020 to 2024 (30 m)
Resolution docs-verified: 10 m (GHLC10, 2020) and 30 m (GHLC30, annual 2020–2024)
Formats docs-verified: Cloud-Optimized GeoTIFF · QML legend files (QGIS)
Access docs-verified: Free and open under CC BY 4.0; public, anonymous HTTPS or S3 access via Source Cooperative, no credentials needed

Useful for

Use cases llm-inferred: Catchment land cover baseline for FRA runoff (curve number) inputs, 2020–2024 at 30 m · Impervious and built-up extent screening for drainage strategy runoff assumptions · Starting-point land cover classes for BNG habitat baseline mapping, to be verified against site survey · Land cover change screening over 2020–2024 for planning and EIA context
Audience llm-inferred: flood consultants · drainage engineers · hydrologists · ecologists · planners · GIS analysts

Limitations

Constraints docs-verified: Research product; no warranty of accuracy or fitness for purpose, and users must verify suitability · Errors and artifacts may occur in the maps, source data or workflow · 10 m product is 2020 only; 30 m product covers 2020 to 2024 · Some classes (e.g. Other grassland, Other shrubland, Moss and lichen, Wetland - other) are absent at 30 m · Single 10 m 2020 GeoTIFF is about 190.52 GB; 30 m yearly files are about 41 GB each · UK-specific accuracy is not stated in the docs · Production workflow scripts are tied to OpenGeoHub infrastructure and need adapting to reproduce

Licence: see product README
Authentication: Public; anonymous HTTPS/S3 access via data.source.coop
GitHub stars: Unknown
Last commit: Unknown
Last successful page check: 14/10/2026
Page health: page reachable
Package: Not recorded
Verification: Not independently verified

Provenance & evidence

Verified via Source Cooperative API /api/v1/products/opengeohub (public product, updated 2026-10-08).

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