NERC Data Catalogue Service
Plynlimon research catchment hydrochemistry (2016-2019)
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
Default
Identification info
- Metadata Language
- English (en)
- Character set
- utf8
- Dataset Reference Date ()
- 2019-07-11
- Dataset Reference Date ()
- 2019-06-18
- Identifier
- doi: / 10.5285/54fe47f3-778e-4e0b-8cf5-b2fda2473b7f
- Other citation details
- 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
- Maintenance and update frequency
- irregular
- Maintenance note
- CEH will endeavour to upload Plynlimon hydrochemistry data every two years.
- GEMET - INSPIRE themes, version 1.0 ()
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- Environmental Monitoring Facilities
- Keywords
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- Plynlimon
- Hafren
- Severn
- Gwy
- Wye
- Hydrochemistry
- Fortnightly
- Four weekly
- Stream
- Bulk precipitation
- Rainfall
- Limitations on Public Access
- otherRestrictions
- Other constraints
- no limitations
- Use constraints
- otherRestrictions
- Use constraints
- otherRestrictions
- Other constraints
- © UK Centre for Ecology & Hydrology
- Use constraints
- otherRestrictions
- Other constraints
- 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
- Spatial representation type
- textTable
- Distance
- 1 urn:ogc:def:uom:EPSG::9001
- Topic category
-
- Environment
))
- Begin date
- 2016-03-23
- End date
- 2019-03-08
Distribution Information
- Data format
-
-
Comma-separated values (CSV)
()
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Comma-separated values (CSV)
()
- Resource Locator
-
Download the data
Download a copy of this data
- Resource Locator
-
Supporting information
Supporting information available to assist in re-use of this dataset
- Resource Locator
-
Download the data
Download a copy of this data
- Resource Locator
-
Supporting information
Supporting information available to assist in re-use of this dataset
- Quality Scope
- dataset
- Other
- dataset
Report
- Dataset Reference Date ()
- 2010-12-08
- Statement
-
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.
Metadata
- File identifier
- 54fe47f3-778e-4e0b-8cf5-b2fda2473b7f XML
- Metadata Language
- English (en)
- Character set
- ISO/IEC 8859-1 (also known as Latin 1)
- Resource type
- dataset
- Hierarchy level name
- dataset
- Metadata Date
- 2022-08-03T07:48:35
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
