dataset · Global
CLMS Soil Water Index (SWI) Global 12.5km 10-daily V4 (COG)
Quantifies the moisture condition at various depths in the soil. 10-daily observations are available at global scale in the spatial resolution of 12.5 km.
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Licence: other
Evidence quality: 37.6
Listed in cdse-stac public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- soil water index (SWI) at T=1, 5, 10, 15, 20, 40, 60, 100 · percent valid observations per SWI layer · quality flags per SWI layer
- Coverage docs-verified
- Global · from 2007-01-10T12:00:00Z, open-ended (no end date)
- Resolution docs-verified
- 12.5 km spatial; 10-daily temporal
- Update frequency docs-verified
- 10-daily
- Formats docs-verified
- GeoTIFF (cloud-optimized COG) · ZIP (zipped product)
- Access docs-verified
- Licence 'other' (Copernicus Land Monitoring Service data policy). Assets reference OIDC auth (HTTPS) and S3 credentials; ENTRY lists auth as null.
Useful for
- Use cases llm-inferred
- Regional antecedent soil moisture context for flood risk assessments (FRA) runoff-condition screening · Large-area wetness or drought screening for ecological or BNG site context · Coarse ground-condition screening for earthworks or geotechnical scoping over large areas
- Audience llm-inferred
- hydrologists · flood consultants · environmental consultants · GIS analysts
Limitations
- Constraints llm-inferred
- 12.5 km grid is too coarse for site-scale assessments · Soil Water Index is a relative index, not volumetric soil moisture (inferred from the product name) · Global extent, not UK-specific; UK coverage not stated in docs · Offline product with P3D timeliness, so data is not near real-time · Licence 'other' and auth requirements need checking before use in client deliverables
Evidence
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.