cd7db09f-edf6-4b06-b878-f1be6c649e3a 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 2025-11-13T16:23:27 UK GEMINI 2.3 WGS 84 Conwy Catchment - Nant Y Brwyn Discharge dataset (2008-2011) 2011-11-18 publication 2011-08-25 creation https://catalogue.ceh.ac.uk/id/cd7db09f-edf6-4b06-b878-f1be6c649e3a 10.5285/cd7db09f-edf6-4b06-b878-f1be6c649e3a doi: 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 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 Burden, A. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk pointOfContact Burden, A. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-7694-1638 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. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Evans, C.D. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-7052-354X 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 Grant, S.J. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Williams, D. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Evans, D. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Callaghan, B. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Pomeroy, I. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian NERC Environmental Information Data Centre info@eidc.ac.uk publisher UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk owner annually Approximately annually Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication hydrometry GEMET - Concepts, version 4.1.3 2019-01-28 creation Wales United Kingdom GeoNames 2006-01-01 creation Hydrology Conwy Catchment otherRestrictions no limitations otherRestrictions This resource is made available under the terms of the Open Government Licence otherRestrictions © UK Centre for Ecology & Hydrology otherRestrictions 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 textTable English utf8 environment inlandWaters 2008-03-11 2011-07-14 -4.031 -3.592 52.944 53.31 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/data/cd7db09f-edf6-4b06-b878-f1be6c649e3a Download the data Get a copy of this data download https://data-package.ceh.ac.uk/sd/cd7db09f-edf6-4b06-b878-f1be6c649e3a.zip Supporting documents Documents available to assist with 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 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.