Nant Teyrn Freshwater Environmental Change Network (ECN) Site

Environmental Change Network (ECN) is network of sites spanning the UK where we conduct environmental monitoring using standard methods. There are currently 12 terrestrial sites and 45 freshwater sites, covering a wide range of upland and lowland habitats including moorland, chalk grassland, woods and forests, farmland, small ponds and streams, large rivers and lakes. ECN is the UK member of the International Long-Term Ecological Research Network (ILTER) and of LTER-Europe. The ECN's objectives are to establish and maintain a network of sites from which to obtain comparable long-term datasets through the monitoring of a range of variables; to integrate and analyse these data to identify natural and man-induced environmental changes, improve understanding of the causes of change, distinguish short-term fluctuations from long-term trends, and predict future changes. Nant Teyrn is a small upland stream on the out flow from Llyn Teyrn in Yr Wyddfa National Nature Reserve. This freshwater Environmental Change Network (ECN) site is co-located with Yr Wyddfa/Snowdon terrestrial ECN site. As part of the ECN project long term monitoring of physical, chemical and biological variables occurs at Nant Teyrn. The monitoring is designed to collect, store, analyse and interpret long-term datasets for physical, chemical and biological variables, which drive or respond to environmental change. The data is subject to a variety of quality control procedures (QA). Each monitoring protocol has a corresponding paper form. The data is entered into an Excel spreadsheet which has background calibration graphs in order to flag any outliers within the data. These outliers can then be double checked against the paper records. Every year the spreadsheet is checked against the paper records, and each line of data within the spreadsheet is assigned a quality code which helps to flag up any problems during data collation e.g. snow in the gauges. The CEH CCU also has its own QA procedures which they follow on receipt of the data.

Identification

Identifier
NRW_DS111161
Alternative Title
  • Safle Rhwydwaith Newid Amgylcheddol Dwr Croyw Nant Teyrn
Metadata Language
English
Lineage

Standard protocols which have been developed specifically for ECN are used to collect data (see individual metadata entries in the 'contains' field below for more details). The data is sent to CEH Merlewood where it is checked and transferred into a centralised database managed by the ECN Central Coordinating Unit (CCU) incorporating data from all ECN sites across the UK.
Dataset Reference Date (Publication)
2014-12-31
Owner
  Welsh Government -
Cathays Park, Cardiff, CF10 3NQ
wales.gov.uk
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  Countryside Council for Wales (CCW) -
Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
 

Extent

Extent

Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Distribution

Format Type and Description
  • Documents ( )

    Specification

    See individual metadata entries in the 'contains' field above for more details.

Resource Locator
The UK Environmental Change Network

World Wide Web page

 

Quality

Data quality

Quality Scope
Dataset
Conformity
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
Explanation

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

Standard protocols which have been developed specifically for ECN are used to collect data (see individual metadata entries in the 'contains' field below for more details). The data is sent to CEH Merlewood where it is checked and transferred into a centralised database managed by the ECN Central Coordinating Unit (CCU) incorporating data from all ECN sites across the UK.
 

Keywords

Keywords

GEMET - INSPIRE themes, version 1.0
Type
Theme

Citation

Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus
  • Snowdon (Yr Wyddfa)
  • freshwater (fresh water, open water) (see also freshwater ecology) (see also inland waters,rivers,lakes)
  • Environmental Change Network Site (ECN Site)
  • Nant Teyrn
  • Environmental Change Network (ECN)
  • climate change (climatic change)
Type
Theme

Citation

Date (Publication)
2026-03-04
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Keywords

NRW SMNR Keywords
  • Climate (SMNR)
  • Water Quality (SMNR)
  • Mountains, Moorland and Heaths (SMNR)
  • Water Resources (SMNR)
  • Management Areas (SMNR)
  • Sustainable Management of Natural Resources (SMNR)
  • Animals, Plants and Other Organisms (SMNR)
  • Ecosystem (SMNR)
  • Semi-natural Grasslands (SMNR)
Type
Theme

Citation

Date (Publication)
2024-06-26
Code
geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Content Information

NRW Profile

Custom Elements

NRW Related Title

Establishing an ECN freshwater site on Yr Wyddfa/Snowdon : results of the pilot study
NRW Related Title

Nant Teyrn, the ECN freshwater site on Yr Wyddfa/Snowdon : results of the second year
 

Constraints

Constraints

Limitations on Public Access and Use

Restriction type
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

This data is jointly owned by NRW and Welsh Government There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
 

Use Constraints

Use constraints type
Other restrictions
Other constraints

© CNC/NRW and Welsh Government, 2014 There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and the copyright of NRW/ WG and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
 
 
 

Metadata

Metadata

File Identifier
4f4c4942-4343-5764-6473-313131313631 XML
Metadata Language
English
Parent Identifier
Monitoring and Surveillance of National Nature Reserves (NNRs) in Wales

NRW_DS110512
Resource type
Dataset
Metadata Date
2026-06-26T07:40:31.643Z
Metadata Standard Name
NRW
Metadata Standard Version

1.0

pointOfContact
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

Access the portal