Identification

Title

Plynlimon research catchment hydrochemistry (2016-2019)

Abstract

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

Resource type

dataset

Resource locator

https://data-package.ceh.ac.uk/data/54fe47f3-778e-4e0b-8cf5-b2fda2473b7f

name: Download the data

description: Download a copy of this data

function: download

https://data-package.ceh.ac.uk/sd/54fe47f3-778e-4e0b-8cf5-b2fda2473b7f.zip

name: Supporting information

description: Supporting information available to assist in re-use of this dataset

function: information

Unique resource identifier

code

https://catalogue.ceh.ac.uk/id/54fe47f3-778e-4e0b-8cf5-b2fda2473b7f

codeSpace

doi:

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

environment

Keywords

Keyword set

keyword value

Environmental Monitoring Facilities

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

Plynlimon

Hafren

Severn

Gwy

Wye

Hydrochemistry

Fortnightly

Four weekly

Stream

Bulk precipitation

Rainfall

Geographic location

West bounding longitude

-3.821

East bounding longitude

-3.633

North bounding latitude

52.514

South bounding latitude

52.415

Temporal reference

Temporal extent

Begin position

2016-03-23

End position

2019-03-08

Dataset reference date

date type

publication

effective date

2019-07-11

date type

creation

effective date

2019-06-18

Frequency of update

irregular

Quality and validity

Lineage

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.

Conformity

Conformity report

specification

title

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

reference date

date type

publication

effective date

2010-12-08

degree

explanation

Data format

name of format

Comma-separated values (CSV)

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

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

Responsible organisations

Responsible party

organisation name

Centre for Ecology & Hydrology

Identification

Title

Abstract

Resource type

Resource locator

Unique resource identifier

code

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

Keywords

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

effective date

Keyword set

keyword value

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

effective date

date type

effective date

Frequency of update

Quality and validity

Lineage

Conformity

Conformity report

specification

title

reference date

date type

effective date

degree

explanation

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Responsible organisations

Responsible party

organisation name

email address

responsible party role

Responsible party

organisation name

email address

responsible party role

Responsible party

organisation name

email address

responsible party role

Responsible party

organisation name

email address

responsible party role

Responsible party

organisation name