dataset · Europe
Water Cover Duration 2016-present (raster 10 m), Europe, annually
The Water Cover Duration (WCD) product is generated once a year. It provides an estimate of the number of days on which water covers the land at a European scale during the hydrological year. The hydrological year begins on 1 September. The product is derived from Sentinel-1 and Sentinel-2 data, as well as Sentinel-2 Water and Ice Cover (WIC S2) product. It has a spatial resolution of 10 m x 10 m.
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Licence: other
Evidence quality: 48.6
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
- water cover duration (days of water presence per hydrological year, 0-366) · WCD-QA quality layer
- Coverage docs-verified
- Europe (bbox -32,27 to 46,72) · 2016-09-01 to present (open-ended)
- Resolution docs-verified
- 10 m x 10 m spatial; annual temporal (one product per hydrological year, which starts 1 September)
- Update frequency docs-verified
- Annual (generated once a year)
- Formats docs-verified
- GeoTIFF (cloud-optimized)
- Access docs-verified
- Licence 'other' (CLMS legal notice at land.copernicus.eu/en/data-policy). Accessed via STAC and S3; CDSE S3 is not requester-pays, CREODIAS S3 is requester-pays.
Useful for
- Use cases llm-inferred
- Multi-year surface-water and flood-plain inundation duration baseline for FRA screening · Persistent water-body and wetland extent mapping for BNG habitat baselines · Hydrological-year water-presence screening for drainage outfall or abstraction siting
- Audience llm-inferred
- flood consultants · hydrologists · GIS analysts · ecologists · drainage engineers
Limitations
- Constraints llm-inferred
- Annual product only; no sub-annual water-presence timing · Cloud and cloud-shadow pixels (value 65485) and sea (65533) are classified separately and must be masked · Quality layer grades pixels from high to minimal quality; low and minimal-quality pixels need caution · Licence is 'other', so check CLMS terms before redistribution · CREODIAS S3 mirror is requester-pays
Evidence
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.