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dcterms:title "Surface temperature, surface oxygen, water clarity, water chemistry and phytoplankton chlorophyll a data from Grasmere, 1968 to 2013" ;
dcterms:identifier "https://catalogue.ceh.ac.uk/id/b891c50a-1f77-48b2-9c41-7cc0e8993c50","https://doi.org/10.5285/b891c50a-1f77-48b2-9c41-7cc0e8993c50" ;
dcterms:bibliographicCitation "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 Grasmere, 1968 to 2013. NERC Environmental Information Data Centre. https://doi.org/10.5285/b891c50a-1f77-48b2-9c41-7cc0e8993c50" ;
dcterms:description "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 Grasmere in Cumbria, England that began in 1968 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. 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 June 1968 until the end of 2013." ;
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