Derived annual statistics of rainfall, streamflow and acidity for the Nant Esgair Garn catchment, Llyn Brianne, Mid Wales, UK. (1982 to 2012)

• Published by: Environmental Information Data Centre
• Last updated: 16 February 2023
• Topic: Not added
• Licence: Other Licence ; View licence information

Summary

This dataset comprises of derived annual statistics for measures of rainfall, streamflow, temperature and stream acidity (pH) for a stream, draining a small, approximately 0.6 square kilometres, upland grassland catchment. The stream, Nant Esgair Garn, drains into the Llyn Brianne reservoir, Powys, United Kingdom. The data are for a 31 year period covering 1st April 1982 to 1st April 2012. The streamflow and acidity data are derived from 15 minute resolution observations throughout the calendar year 2013 from associated stream gauging and water quality stations on the Nant Esgair Garn. The monthly rainfall measures presented, were derived from local rain gauges. The monthly temperature measures presented were derived from observations at a weather station near Talgarth, Powys. Routines within the Lancaster University Computer-Aided Program for Time-series Analysis and Identification of Noisy Systems (CAPTAIN) Toolbox for Matlab were used to develop a dynamic model of these data. These models were then used to simulate the 31-year record for which monthly statistics were derived. The statistics were derived to develop greater understanding of the controls on the long-term dynamics of aquatic biodiversity observed by other researchers in this stream. The work was part of the Diversity in Upland River Ecosystem Service Sustainability (DURESS) project, NERC grant NE/J014826/1. Members of staff from the Lancaster Environment Centre, Lancaster University installed, maintained and downloaded the stream gauging and water quality stations and also carried out statistical analysis of the data. Full details about this dataset can be found at https://doi.org/10.5285/00185590-537e-40e4-969c-039f44b4dad9

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Link to the data	Format	File added	Data preview
Supporting information	ZIP	16 February 2023	Not available
Download the data	N/A	16 February 2023	Not available

Additional information

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• Added to data.gov.uk: 2022-05-20T10:41:59
• Access contraints: © Lancaster University
• Harvest GUID: 00185590-537e-40e4-969c-039f44b4dad9
• Extent: Latitude: 52.136° to 52.127°
• Extent: Longitude: -3.721° to -3.709°
• Dataset reference date: 2016-05-31 (publication)
• Dataset reference date: 2016-04-01 (creation)
• Frequency of update: notPlanned
• Responsible party: Lancaster University (pointOfContact, author, owner); Maynooth University (author); NERC EDS Environmental Information Data Centre (custodian); NERC Environmental Information Data Centre (publisher)
• ISO 19139 resource type: dataset
• Metadata language: eng
• Source Metadata: XML
• Source Metadata: HTML

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