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

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.

Publication date: 2017-04-28

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Supporting documentation

Format of the Dataset : Comma-separated values (CSV)

Where/When

Study area
Temporal extent
1945-04-01    to    2013-12-31

Quality

Lineage
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. Water samples are based on a sample integrated from 0 to 5 m. Samples were analysed in Freshwater Biological Association/Centre for Ecology & Hydrology laboratories.

Authors

Maberly, S.C.
Centre for Ecology & Hydrology
Brierley, B.
Freshwater Biological Association
Carter, H.T.
Centre for Ecology & Hydrology
Clarke, M.A.
Centre for Ecology & Hydrology
De Ville, M.M.
Centre for Ecology & Hydrology
Fletcher, J.M.
Centre for Ecology & Hydrology
James, J.B.
Centre for Ecology & Hydrology
Keenan, P.
Centre for Ecology & Hydrology
Kelly, J.L.
Centre for Ecology & Hydrology
Mackay, E.B.
Centre for Ecology & Hydrology
Parker, J.E.
Centre for Ecology & Hydrology
Patel, M.
Centre for Ecology & Hydrology
Pereira, M.G.
Centre for Ecology & Hydrology
Rhodes, G.
Centre for Ecology & Hydrology
Tanna, B.
Centre for Ecology & Hydrology
Thackeray, S.J.
Centre for Ecology & Hydrology
Vincent, C.
Centre for Ecology & Hydrology
Feuchtmayr, H.
Centre for Ecology & Hydrology

Other contacts

Point Of Contact
Feuchtmayr, H.
Centre for Ecology & Hydrology
Lancaster Environment Centre, Library Avenue, Bailrigg
Lancaster
Lancashire
LA1 4AP
United Kingdom
Publisher
NERC Environmental Information Data Centre
Custodian
Environmental Information Data Centre
Distributor
Environmental Information Data Centre

Spatial

Spatial representation type
Tabular (text)
Spatial reference system
OSGB 1936 / British National Grid

Keywords

Topic categories
Inland Waters
CEH Topic
Water resources
Monitoring and observation systems
Environmental survey
Water quality
INSPIRE Theme
Environmental Monitoring Facilities
Place keywords
England
Lake District
Blelham Tarn
Temporal keywords
fortnightly
weekly

Dataset identifiers

https://catalogue.ceh.ac.uk/id/393a5946-8a22-4350-80f3-a60d753beb00
doi:10.5285/393a5946-8a22-4350-80f3-a60d753beb00

Metadata

Information maintained by
Feuchtmayr, H.
Centre for Ecology & Hydrology
Last updated
2018-01-19T16:02:36