776f99f4-1506-4f7f-920f-8318561d4085 English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2026-01-29T14:09:28 UK GEMINI 2.3 OSGB 1936 / British National Grid Headwater stream quality metrics from the Environment and Rural Affairs Monitoring & Modelling Programme, Wales, 2021-2023 2026-01-22 publication https://catalogue.ceh.ac.uk/id/776f99f4-1506-4f7f-920f-8318561d4085 10.5285/776f99f4-1506-4f7f-920f-8318561d4085 doi: Doeser, A., Scarlett, P., Bentley, L., Emmett, B.A., Lucas, J.R., Monkman, G., Reinsch, S., Richardson-Jones, V., Williams, B., Wood, C.M. (2026). Headwater stream quality metrics from the Environment and Rural Affairs Monitoring & Modelling Programme, Wales, 2021-2023. NERC EDS Environmental Information Data Centre 10.5285/776f99f4-1506-4f7f-920f-8318561d4085 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 Doeser, A. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0009-0001-4858-2332 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Scarlett, P. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Bentley, L. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0001-5055-7673 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Emmett, B.A. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-2713-4389 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Lucas, J.R. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0001-5346-0228 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Monkman, G. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-5645-1834 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Reinsch, S. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0003-4649-0677 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Richardson-Jones, V. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Williams, B. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0009-0005-8292-4905 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Wood, C.M. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-0394-2998 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Welsh Government EMAIL NOT PROVIDED owner Anna Doeser UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0009-0001-4858-2332 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information pointOfContact NERC EDS Environmental Information Data Centre info@eidc.ac.uk publisher NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Water quality Environmental survey Wales freshwater headwater streams Environment and Rural Affairs Monitoring & Modelling Programme ERAMMP otherRestrictions no limitations otherRestrictions This resource is available under the terms of the Open Government Licence otherRestrictions © 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. otherRestrictions © Hawlfraint y Goron: Llywodraeth Cymru Mae'r holl gynnwys ar gael dan Drwydded Llywodraeth Agored v3.0. Yn cynnwys gwybodaeth Cyfoeth Naturiol Cymru © Cyfoeth Naturiol Cymru a Hawl Cronfa Ddata. Cedwir pob hawl. Yn cynnwys Data Arolwg Ordnans. Rhif Trwydded yr Arolwg Ordnans AC0000849444. Hawlfraint y Goron a Hawliau Cronfa Ddata. otherRestrictions For the avoidance of doubt, if the publication of the Licensed Data is not within Wales, the Welsh form of the acknowledgement wording is not required. otherRestrictions If you reuse this data, you should cite: Doeser, A., Scarlett, P., Bentley, L., Emmett, B.A., Lucas, J.R., Monkman, G., Reinsch, S., Richardson-Jones, V., Williams, B., Wood, C.M. (2026). Headwater stream quality metrics from the Environment and Rural Affairs Monitoring & Modelling Programme, Wales, 2021-2023. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/776f99f4-1506-4f7f-920f-8318561d4085 grid 10000 English utf8 biota environment inlandWaters 2021-05-01 2023-09-30 -5.473 -2.654 51.375 53.434 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/sd/776f99f4-1506-4f7f-920f-8318561d4085.zip Supporting information Supporting information available to assist in re-use of this dataset information https://data-package.ceh.ac.uk/data/776f99f4-1506-4f7f-920f-8318561d4085 Download the data Download a copy of this data download dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 The data were recorded using electronic data capture devices in the summers of 2021-2023 by professional surveyors. Data were recorded from up to 225 x 1km squares sited across Wales, selected by random stratified sample (not all squares surveyed in this program contained headwater streams). The survey was managed by the UK Centre for Ecology & Hydrology. Standardised methodologies were applied throughout. To ensure confidentiality of the data with respect to land owners and managers, the locations of 1km squares and survey sites were converted to the centres of the containing 10 km Ordnance Survey grid squares.