BGS Hosted Metadata
Conwy Catchment - Nant Y Brwyn Discharge dataset (2008-2011)
Discharge data and in-stream temperature for a peatland headwater stream of the Conwy catchment, North Wales are presented from March 2008 until July 2011. The stream for which the data represents is the Nant y Brwyn situated on the Migneint blanket bog within Snowdonia National Park. The purpose of the data is to calculate annual run-off estimates for the Nant y Brwyn catchment and to provide support for estimating fluvial carbon fluxes. Note: there are gaps in this data set due to equipment/battery failures and/or freezing of the stream. Note dates added to dataset name on 22/06/2017 Full details about this dataset can be found at https://doi.org/10.5285/cd7db09f-edf6-4b06-b878-f1be6c649e3a
Simple
- Date (Publication)
- 2011-11-18
- Date (Creation)
- 2011-08-25
- Citation identifier
- https://catalogue.ceh.ac.uk/id/cd7db09f-edf6-4b06-b878-f1be6c649e3a
- Citation identifier
- doi: / 10.5285/cd7db09f-edf6-4b06-b878-f1be6c649e3a
- Other citation details
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Burden, A., Norris, D.A., Evans, C.D., Grant, S.J., Williams, D., Evans, D., Callaghan, B., Pomeroy, I. (2011). Conwy Catchment - Nant Y Brwyn Discharge dataset (2008-2011). NERC Environmental Information Data Centre 10.5285/cd7db09f-edf6-4b06-b878-f1be6c649e3a
- Point of contact
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Organisation name Individual name Electronic mail address Role UK Centre for Ecology & Hydrology Burden, A.
Point of contact Centre for Ecology & Hydrology Burden, A. Author Centre for Ecology & Hydrology Norris, D.A.
Author Centre for Ecology & Hydrology Evans, C.D. Author Centre for Ecology & Hydrology Grant, S.J.
Author Centre for Ecology & Hydrology Williams, D.
Author Centre for Ecology & Hydrology Evans, D.
Author Centre for Ecology & Hydrology Callaghan, B.
Author Centre for Ecology & Hydrology Pomeroy, I.
Author NERC EDS Environmental Information Data Centre Custodian NERC Environmental Information Data Centre Publisher UK Centre for Ecology & Hydrology Owner
- Maintenance and update frequency
- Annually
- Maintenance note
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Approximately annually
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GEMET - INSPIRE themes, version 1.0
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Environmental Monitoring Facilities
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GEMET - Concepts, version 4.1.3
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GeoNames
- Keywords
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- Hydrology
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Conwy Catchment
- Access constraints
- Other restrictions
- Other constraints
- no limitations
- Use constraints
- Other restrictions
- Use constraints
- Other restrictions
- Other constraints
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© UK Centre for Ecology & Hydrology
- Use constraints
- Other restrictions
- Other constraints
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If you reuse this data, you should cite: Burden, A., Norris, D.A., Evans, C.D., Grant, S.J., Williams, D., Evans, D., Callaghan, B., Pomeroy, I. (2011). Conwy Catchment - Nant Y Brwyn Discharge dataset (2008-2011). NERC Environmental Information Data Centre https://doi.org/10.5285/cd7db09f-edf6-4b06-b878-f1be6c649e3a
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
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- Environment
- Inland waters
- Begin date
- 2008-03-11
- End date
- 2011-07-14
))
- Unique resource identifier
- WGS 84
- Distribution format
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Name Version Comma-separated values (CSV)
- Distributor contact
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre
Distributor
- OnLine resource
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Protocol Linkage Name https://data-package.ceh.ac.uk/data/cd7db09f-edf6-4b06-b878-f1be6c649e3a Download the data
- OnLine resource
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Protocol Linkage Name https://data-package.ceh.ac.uk/sd/cd7db09f-edf6-4b06-b878-f1be6c649e3a.zip Supporting documents
- Hierarchy level
- Dataset
- Other
-
dataset
Conformance result
- Title
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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
- Date (Publication)
- 2010-12-08
- Statement
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Stage (or water depth) and temperature are measured by a Starflow Ultrasonic Doppler Instrument every 5 minutes and averaged and recorded automatically on to an integrated data logger every 15 minutes. This data is downloaded monthly on to a laptop and transferred on to the CEH shared drive which is in turn backed up each evening. The data is then integrated into a master file along with a diary entry for the visit detailing any relevant information or observations. This metadata is then used to help quality check the raw data, along with plotting the data to identify outliers that may be indicative of equipment failure. Data start/finish dates and times are checked to ensure a continuous data series or to note data gaps. A rating curve was produced by carrying out flow gauging over a wide range of stream flow conditions using a SonTek FlowTracker handheld ADV. A particular stream cross-section at the Starflow location was used consistently for these measurements. Velocity was determined at stations separated by 10 cm along the cross-section. Mean station velocity was measured at 0.6 * depth (Vmean=V0.6) and discharge calculated by the FlowTracker software using the default Mid Section discharge equation (Firmware Version 3.7). Calculated discharge was related to the Starflow measured stage averaged over the duration of the FlowTracker measurement (typically 30 to 60 minutes). The fitted regression curve indicated that discharge was exponentially related to stage for depths less than 0.267m, and followed a linear relationship for greater depths. The rating curve is then applied to the stage data to give the final discharge estimates.
Metadata
- File identifier
- cd7db09f-edf6-4b06-b878-f1be6c649e3a XML
- Metadata language
- English
- Character set
- 8859 Part 1
- Hierarchy level
- Dataset
- Hierarchy level name
-
dataset
- Date stamp
- 2025-11-13T16:23:27
- Metadata standard name
- UK GEMINI
- Metadata standard version
-
2.3
- Metadata author
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre Point of contact
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