dataset · Wales
Government / regulator
Headwater stream quality metrics from the Environment and Rural Affairs Monitoring & Modelling Programme, Wales, 2021-2023
This dataset consists of headwater quality data for sites across Wales between 2021 and 2023), collected as part of the Environment and Rural Affairs Monitoring and Modelling Programme (ERAMMP) National Field Survey. Data include water chemistry and ecological quality metrics, River Habitat Survey data (including information on substrates, flow types, aquatic vegetation, channel and bank materials, modifications and natural features, riparian land use, artificial features, spot check records, tr
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What's in it
- Data offered docs-verified
- water chemistry · ecological quality metrics · River Habitat Survey data (substrates, flow types, aquatic vegetation, channel and bank materials, modifications, riparian land use, tree cover, Habitat Modification and Habitat Quality indices) · macro-invertebrate taxonomic and abundance data · diatom taxonomic and abundance data · headwater quality indices derived from invertebrate and diatom communities · associated environmental data
- Coverage docs-verified
- Wales (headwater sites within 101 x 1km squares) · 2021-05-01 to 2023-09-30
- Resolution docs-verified
- Survey within 1 km squares; site locations published at centres of 10 km OS grid squares (spatial resolution 10000 metres); temporal: summer surveys 2021-2023, no finer temporal resolution stated
- Formats docs-verified
- CSV
- Access docs-verified
- Free download from NERC EDS Environmental Information Data Centre via DOI; no authentication. Licence: Open Government Licence v3.0 per DOCS, but ENTRY licence field says 'Non-Open government licence' (conflict; verify before use)
Useful for
- Use cases llm-inferred
- Headwater baseline water chemistry and invertebrate/diatom quality indices for Welsh catchment screening · River Habitat Survey inputs for habitat condition baselines in Welsh headwater catchments · Ecological baseline context for Welsh land-use or agri-environment impact assessments
- Audience llm-inferred
- ecologists · freshwater ecologists · environmental consultants · hydrologists · planners · GIS analysts
Limitations
- Constraints llm-inferred
- Site and survey locations generalised to 10 km grid-square centres for landowner confidentiality · Not all 1 km squares contained headwater streams; sample based on stratified random design · Data limited to Wales and summers 2021-2023 · Licence conflict between ENTRY metadata and DOCS
- 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)