dataset · Europe
CERRA sub-daily regional reanalysis data for Europe on single levels from 1984 to present
The Copernicus European Regional ReAnalysis (CERRA) datasets provide spatially and temporally consistent historical reconstructions of meteorological variables in the atmosphere and at the surface. There are four subsets: single levels (atmospheric and surface quantities), height levels (upper-air fields up to 500m), pressure levels (upper-air fields up to 1hPa) and model levels (native levels of the model). This entry provides reanalysis and forecast data on single levels for Europe from 1984 t
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Licence: CC-BY-4.0
Evidence quality: 44.3
Listed in cds 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
- total precipitation · snowfall water equivalent · snow depth · snow depth water equivalent · 2m temperature · 2m relative humidity · skin temperature · soil temperature · volumetric soil moisture · liquid volumetric soil moisture (non-frozen) · 10m wind speed · 10m wind direction · 10m wind gust since previous post-processing · surface pressure · mean sea level pressure · total cloud cover · low, medium and high cloud cover · surface solar radiation downwards · surface net solar radiation · surface net thermal radiation · evaporation · surface latent heat flux · surface sensible heat flux · albedo · orography · land-sea mask · surface roughness · total column integrated water vapour
- Coverage docs-verified
- Europe. Model domain runs from northern Africa beyond the northern tip of Scandinavia, west into the Atlantic and east to the Urals · September 1984 to present
- Resolution docs-verified
- Spatial: 5.5 km x 5.5 km (high-resolution reanalysis), 11 km x 11 km (ensemble members). Temporal: analysis 3-hourly (high-resolution), 6-hourly (ensemble); forecast hourly for range 1-6 h, 3-hourly for range 6-30 h (high-resolution only)
- Update frequency docs-verified
- Monthly
- Formats docs-verified
- GRIB2
- Access llm-inferred
- Licence CC-BY (entry lists CC-BY-4.0). No API key or auth listed in the entry. Use of the Copernicus Climate Data Store (CDS) account login implied by the site navigation
Useful for
- Use cases llm-inferred
- Historic total precipitation and soil moisture context for back-analysing flood or drainage events · Antecedent soil moisture and snow depth inputs for FRA or drainage design review · Historic 10m wind speed and gust, and cloud cover, for site exposure or civils risk assessments
- Audience llm-inferred
- flood risk consultants · hydrologists · drainage engineers · climate risk analysts · GIS analysts
Limitations
- Constraints docs-verified
- Spatial gaps are expected in the dataset · Observing networks were much sparser in earlier periods, which can reduce analysis accuracy · Some parameters (e.g. 10m wind gust, radiative fluxes) are produced only by the forecast model, not the reanalysis · Ensemble members are 11 km, coarser than the 5.5 km high-resolution product · Monthly update frequency, so not near-real-time · Pan-European domain, not UK-specific; site use needs extraction and regridding from GRIB2 grids · Analysis output is 3-hourly for the high-resolution product, not hourly
Evidence
- https://cds.climate.copernicus.eu/api/catalogue/v1/collections/reanalysis-cerra-single-levels
- https://cds.climate.copernicus.eu/datasets/reanalysis-cerra-single-levels
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.