Headwater stream quality metrics from the Environment and Rural Affairs Monitoring & Modelling Programme, Wales, 2021-2023

Published by:
Environmental Information Data Centre
Last updated:
11 March 2026
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Not added
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None

Summary

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, tree cover and associated features and Habitat Modification and Habitat Quality indices), macro-invertebrate taxonomic and abundance data, diatom taxonomic and abundance data, headwater quality indices derived from both the invertebrate and diatom communities and associated environmental data. Headwater streams were surveyed within a set of 101 x 1km squares across Wales, collected as part of the Environment and Rural Affairs Monitoring and Modelling Programme (ERAMMP) National Field Survey. ERAMMP follows an earlier monitoring programme, the Glastir Monitoring and Evaluation Programme (GMEP), which was set up by the Welsh Government in 2013 to monitor the effects of the Glastir agri-environment scheme on the environment and ran from 2013 to 2016. The field survey element for both GMEP and ERAMMP was based on a stratified random sampling design of 300 x 1km square sites across Wales (225 of which were resurveyed for ERAMMP in 2021-23, though not all squares contained headwater streams). It was managed by the UK Centre for Ecology & Hydrology. Full details about this dataset can be found at https://doi.org/10.5285/776f99f4-1506-4f7f-920f-8318561d4085

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Download the data N/A 11 March 2026 Not available
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Added to data.gov.uk
2026-03-09
Access contraints
© Crown copyright: Welsh Government licenced under the Open Government Licence v3.0. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right.
Harvest GUID
776f99f4-1506-4f7f-920f-8318561d4085
Extent
Latitude: 53.434° to °
Longitude: -5.473° to -2.654°
Spatial reference system
Dataset reference date
2026-01-22 (publication)
Frequency of update
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(author, owner, pointOfContact, publisher, custodian)
ISO 19139 resource type
dataset
Metadata language
eng
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