2,158 followers
RT @egu_st: Solar Physics: A Test of the Active-Day Fraction Method of Sunspot Group Number Calibration: Dependence on the Level of Solar A…
RT @egu_st: Solar Physics: A Test of the Active-Day Fraction Method of Sunspot Group Number Calibration: Dependence on the Level of Solar A…
Solar Physics: A Test of the Active-Day Fraction Method of Sunspot Group Number Calibration: Dependence on the Level of Solar Activity: Abstract The method of active-day fraction (ADF) was proposed recently to calibrate different solar observers to… https:
RT @spaceweather: A Test of the Active Day Fraction Method of Sunspot Group Number Calibration: Dependence on the Level of Solar Activity h…
A Test of the Active Day Fraction Method of Sunspot Group Number Calibration: Dependence on the Level of Solar Activity https://t.co/BDCNgPujWU