54fe47f3-778e-4e0b-8cf5-b2fda2473b7f 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 2025-11-13T16:23:00 UK GEMINI 2.3 OSGB 1936 / British National Grid Plynlimon research catchment hydrochemistry (2016-2019) 2019-07-11 publication 2019-06-18 creation https://catalogue.ceh.ac.uk/id/54fe47f3-778e-4e0b-8cf5-b2fda2473b7f 10.5285/54fe47f3-778e-4e0b-8cf5-b2fda2473b7f doi: Norris, D.A., Harvey, R., Winterbourn, J.B., Lebron, I., Thacker, S.A., Lawlor, A.J., Carter, H.T., Guyatt, H., Keenan, P.O., Pereira, M.G., Pinder, A.P., Hughes, S., Fitos, E., Brooks, M.R., Cosby, B.J. (2019). Plynlimon research catchment hydrochemistry (2016-2019). NERC Environmental Information Data Centre 10.5285/54fe47f3-778e-4e0b-8cf5-b2fda2473b7f This dataset includes stream and rainfall hydrochemistry of the Plynlimon research catchments in Mid Wales. The data cover the period from March 2016 to March 2019. Sampling was carried out fortnightly from March 2016 to July 2017. From August 2017 to November 2018 stream samples were collected every four weeks and the rain sample every two weeks. From December 2018 onwards all samples were collected every four weeks. Data are presented for major anions and cations, pH, conductivity, alkalinity, in-situ measurements of water temperature and stream flow for the six stream locations, and air temperature and volume for the rainfall sites. Stream samples were taken using a grab technique and filtered in the field. Rain samples were collected using bulk precipitation collectors. Fieldwork was carried out by CEH members of staff trained in the fieldwork techniques required. Chemical analysis was carried out by qualified CEH chemists at laboratories at CEH Lancaster and CEH Bangor. The Plynlimon research catchments lie within the headwaters of the River Severn and the River Wye in the uplands of mid-Wales. Intensive and long-term monitoring within the catchments underpins a wealth of hydrological and hydro-chemical research. Monitoring is funded by the Centre for Ecology & Hydrology, and is ongoing since 1968. Full details about this dataset can be found at https://doi.org/10.5285/54fe47f3-778e-4e0b-8cf5-b2fda2473b7f Norris, D.A. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0001-8298-555X 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 Norris, D.A. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0001-8298-555X 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 Harvey, R. Centre for Ecology & Hydrology Rachelharvey14@gmail.com author Winterbourn, J.B. Centre for Ecology & Hydrology benwinterbourn@gmail.com https://orcid.org/0000-0002-1318-5281 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 Lebron, I. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0001-8610-9717 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 Thacker, S.A. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Lawlor, A.J. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Carter, H.T. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Guyatt, H. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Keenan, P.O. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Pereira, M.G. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Pinder, A.P. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-9494-6272 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 Hughes, S. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Fitos, E. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Brooks, M.R. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-7439-0393 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 Cosby, B.J. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0001-5645-3373 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 NERC Environmental Information Data Centre info@eidc.ac.uk publisher NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk owner irregular CEH will endeavour to upload Plynlimon hydrochemistry data every two years. Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication atmospheric precipitation GEMET - Concepts, version 4.1.3 2019-01-28 creation Hydrology Plynlimon Hafren Severn Gwy Wye UK-SCAPE Stream Bulk precipitation Rainfall otherRestrictions no limitations otherRestrictions This resource is available under the terms of the Open Government Licence otherRestrictions © UK Centre for Ecology & Hydrology otherRestrictions If you reuse this data, you should cite: Norris, D.A., Harvey, R., Winterbourn, J.B., Lebron, I., Thacker, S.A., Lawlor, A.J., Carter, H.T., Guyatt, H., Keenan, P.O., Pereira, M.G., Pinder, A.P., Hughes, S., Fitos, E., Brooks, M.R., Cosby, B.J. (2019). Plynlimon research catchment hydrochemistry (2016-2019). NERC Environmental Information Data Centre https://doi.org/10.5285/54fe47f3-778e-4e0b-8cf5-b2fda2473b7f textTable 1 English utf8 environment 2016-03-23 2019-03-08 -3.821 -3.633 52.415 52.514 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/data/54fe47f3-778e-4e0b-8cf5-b2fda2473b7f Download the data Download a copy of this data download https://data-package.ceh.ac.uk/sd/54fe47f3-778e-4e0b-8cf5-b2fda2473b7f.zip Supporting information Supporting information available to assist in re-use of this dataset information 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 Sampling was carried out fortnightly from March 2016 to July 2017. From August 2017 to November 2018 stream samples were collected every four weeks and the rain sample every two weeks. From December 2018 onwards samples were collected every four weeks. Stream samples were taken using a grab technique. Rain samples were collected using bulk precipitation collectors. Stream flow is calculated from dip measurements taken at the time of sampling. Standard rainfall collectors are used to measure rainfall volume. Upon return to the CEH Bangor laboratories the cation samples were acidified with concentrated Nitric Acid (to 1 percent) to preserve the samples. Samples for anion and cation sample were then stored at 4 degrees Celsius until they could be transported to the Centralised Analytical Chemistry Group in CEH Lancaster for analysis. Results were reported back to CEH Bangor as Excel spreadsheets. These data were then imported into an Access database. pH, conductivity and alkalinity analysis was carried out the CEH Bangor laboratories. Results were reported back as Excel spreadsheets. Field measurements and flow calculations were also added to these Excel spreadsheets. These data were then imported into the same Access database as the CEH Lancaster results. For ingestion into the Environmental Information data was extracted from the Access database and converted into a comma separated value file.