Surface temperature, surface oxygen, water clarity, water chemistry and phytoplankton chlorophyll a data from Blelham Tarn, 1945 to 2013

• Published by: Environmental Information Data Centre
• Last updated: 22 September 2024
• Topic: Not added
• Licence: Other Licence ; View licence information

Summary

This is a long-term monitoring dataset of surface temperature, surface oxygen, water clarity, water chemistry and phytoplankton chlorophyll a from weekly to fortnightly sampling at Blelham Tarn in Cumbria, England that began in 1945 for some variables. The data were initially collected by the Freshwater Biological Association but have been collected by the Centre for Ecology & Hydrology (CEH) and its predecessor Institute of Freshwater Ecology since 1989. The data available to download comprise surface temperature (TEMP) in degree Celsius, surface oxygen saturation (OXYG) in % air-saturation, Secchi depth (SECC) in metres, alkalinity (ALKA) in µg per litre as CaCO3 and pH. Ammonium (NH4N), nitrate (NO3N), soluble reactive phosphate (PO4P), total phosphorus (TOTP), dissolved reactive silicon expressed as SiO2 (SIO2) and phytoplankton chlorophyll a (TOCA) are all given in µg per litre. Water samples are based on a sample integrated from 0 to 5 m. Measurements are made from a boat at a marked location (buoy) at the deepest part of the lake. When it was not possible to visit the buoy, samples were taken from the shore, thus water samples were not integrated on these occasions, marked as Flag 2. All data are from April 1945 until the end of 2013. Full details about this dataset can be found at https://doi.org/10.5285/393a5946-8a22-4350-80f3-a60d753beb00

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Link to the data	Format	File added	Data preview
Download the data	N/A	22 September 2024	Not available
Supporting information	ZIP	22 September 2024	Not available

Additional information

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• Added to data.gov.uk: 2024-09-18
• Access contraints: If you reuse this data, you should cite: Maberly, S.C., Brierley, B., Carter, H.T., Clarke, M.A., De Ville, M.M., Fletcher, J.M., James, J.B., Keenan, P., Kelly, J.L., Mackay, E.B., Parker, J.E., Patel, M., Pereira, M.G., Rhodes, G., Tanna, B., Thackeray, S.J., Vincent, C., Feuchtmayr, H. (2017). Surface temperature, surface oxygen, water clarity, water chemistry and phytoplankton chlorophyll a data from Blelham Tarn, 1945 to 2013. NERC Environmental Information Data Centre https://doi.org/10.5285/393a5946-8a22-4350-80f3-a60d753beb00
• Harvest GUID: 393a5946-8a22-4350-80f3-a60d753beb00
• Extent: Latitude: 54.399° to 54.393°
• Extent: Longitude: -2.985° to -2.973°
• Dataset reference date: 2017-04-28 (publication)
• Dataset reference date: 2013-12-31 (creation)
• Frequency of update: notPlanned
• Responsible party: (pointOfContact, publisher, author, custodian); Freshwater Biological Association (author)
• ISO 19139 resource type: dataset
• Metadata language: eng
• Source Metadata: XML
• Source Metadata: HTML

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