A New Calibrated Sunspot Group Series Since 1749: Statistics of Active Day Fractions

RT @UniRdg_EnvPhys: Scientists in Finland & Reading produce the first sunspot record that doesn't rely on "daisy chaining" time series http…

RT @UniRdg_EnvPhys: Scientists in Finland & Reading produce the first sunspot record that doesn't rely on "daisy chaining" time series http…

RT @UniRdg_EnvPhys: Scientists in Finland & Reading produce the first sunspot record that doesn't rely on "daisy chaining" time series http…

Scientists in Finland & Reading produce the first sunspot record that doesn't rely on "daisy chaining" time series https://t.co/UZNwa2GZ8v

RT @FScholkmann: A New Calibrated Sunspot Group Series Since 1749: Statistics of Active Day Fractions -> https://t.co/Do6dtTLlxn https://t.…

A New Calibrated Sunspot Group Series Since 1749: Statistics of Active Day Fractions -> https://t.co/Do6dtTLlxn https://t.co/WQ1PrPazIl

RT @mathewjowens: All I want for Christmas is... a calibrated sunspot record? Santa has heard your request! https://t.co/plp02r9uGl

RT @mathewjowens: All I want for Christmas is... a calibrated sunspot record? Santa has heard your request! https://t.co/plp02r9uGl

All I want for Christmas is... a calibrated sunspot record? Santa has heard your request! https://t.co/plp02r9uGl

A New Calibrated Sunspot Group Series Since 1749: Statistics of Active Day Fractions. https://t.co/7ZpfPnspek