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  • The dataset contains monthly data of transparency measured as Secchi depth at the Ghiffa station (deepest point) during 1988-2018

  • This dataset includes Chlorophyll a concentration in μg/L. Measurements of Chl a were made on discrete water samples collected monthly in the upper 20 meters layer at sampling station Ghiffa (45°58’30’’N; 8°39’09’’E) from January 1984 to December 2018. Chl a measurements derived by spectrophotometric technique in the period from January 1984 to December 2009, while from January 2010 to December 2018 measurements derived from vertical profiling instrument (FluoroProbe).

  • The dataset contains monthly data, volume weighted average values for epilimnion (0-25 m) and hypolimnion (25-360 m), for the period 1988-2018 and 2019-2021 for the following variables: water temperature, pH, conductivity, Ntot, NH4N, NO3N, Ptot, PO4P, cation and anion concentrations