dataset · United Kingdom
Government / regulator
Historic Standardised Groundwater level Index (SGI) for 54 UK boreholes (1891-2015)
Monthly Standardised Groundwater level Index (SGI) for observation boreholes across the UK from 1891 to 2015, based on reconstructed groundwater level time series (Bloomfield et al., 2018; https://doi.org/10.5285/ccfded8f-c8dc-4a24-8338-5af94dbfcc16). Standardised groundwater levels have been estimated using a non-parametric normal scores transform of groundwater level data for each calendar month. Probability estimates of an SGI being less than 0, -1, -1.5 and -2 are also provided.
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What's in it
- Data offered docs-verified
- monthly Standardised Groundwater level Index (SGI) · probability of SGI being less than 0 · probability of SGI being less than -1 · probability of SGI being less than -1.5 · probability of SGI being less than -2
- Coverage docs-verified
- United Kingdom (54 observation boreholes) · 1891-01-01 to 2015-12-31
- Resolution docs-verified
- monthly
- Formats docs-verified
- CSV
- Access docs-verified
- Free, open access under the Open Government Licence (OGL); download as zip package or via record metadata (JSON, ISO 19115 XML, schema.org JSON-LD, RDF Turtle) from the NERC EIDC catalogue.
Useful for
- Use cases llm-inferred
- Drought baseline context for water resources or EA/regulatory drought risk assessments using long-term groundwater anomalies · Groundwater drought history for site-specific groundwater risk assessments or environmental due diligence · Benchmarking current groundwater conditions against 1891-2015 historic distribution for planning and reporting
- Audience llm-inferred
- hydrologists · hydrogeologists · environmental consultants · water resources planners · GIS analysts
Limitations
- Constraints llm-inferred
- Series ends 2015; no data for later years in this record · Values are standardised indices from reconstructed (modelled) groundwater levels, not direct observations · Only 54 boreholes, so spatial coverage is sparse and not a national grid · Standardisation is per calendar month, so the index is relative to each month's own historic distribution · Uncertainty is expressed via GLUE behavioural parameter sets (NSE > 0.5), not a single value
- Licence
- 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)