dataset · United Kingdom
Government / regulator
Gridded Standardized Precipitation-Evapotranspiration Index (SPEI) using generalised logistic distribution with standard period 1961-2010 for Great Britain [SPE
1km and 5km gridded Standardised Precipitation-Evapotranspiration Index (SPEI) data for Great Britain, which is a drought index based on the probability of Climatic Water Balance (CWB) - which is equivalent to the amount of precipitation minus the amount of evapotranspiration - for a given accumulation period as defined by Vicente Serrano et al. (2010). SPEI is calculated for different accumulation periods: 1, 3, 6, 12, 18, 24 months. Each of these is in turn calculated for each of the twelve ca
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What's in it
- Data offered docs-verified
- SPEI (Standardised Precipitation-Evapotranspiration Index) gridded drought index · SPEI at 1, 3, 6, 12, 18 and 24 month accumulation periods · Gridded data for each of the twelve calendar months
- Coverage docs-verified
- Great Britain · 1961-01-01 to 2012-12-31
- Resolution docs-verified
- 1 km and 5 km gridded (spatial); temporal resolution not stated, calculated for each calendar month
- Formats docs-verified
- NetCDF
- Access docs-verified
- Download from NERC EIDC; wget/curl examples use a Bearer personal access token; licence terms and conditions apply (ENTRY licence: Non-Open government licence)
Useful for
- Use cases llm-inferred
- Drought severity and trend mapping across GB for water resources or drought risk assessments · Historical 1961-2012 drought context for groundwater level recovery or drought termination assessments · Drought screening of catchments for ecology or environmental baseline reports
- Audience llm-inferred
- hydrologists · water resources engineers · environmental consultants · ecologists
Limitations
- Constraints docs-verified
- Monthly and longer-accumulation time series are likely autocorrelated · Time series end in 2012, so no recent drought conditions are covered · Licence terms and conditions apply to use · Download requires a personal access token for scripted access
- Licence
- Non-Open government licence
- Authentication
- Unknown — review source docs
- GitHub stars
- Unknown
- Last commit
- Unknown
- Last successful page check
- 16/10/2026
- Page health
- healthy
- Package
- Not recorded
- Verification
- Not independently verified
Provenance & evidence
Listed in ukceh-eidc public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata observed 14/10/2026 · research sweep: sweep-2026-10-16 (ukceh-eidc)