Main tasks

• Assess uncertainties and associated causes in the solar irradiance datasets and resulting reconstructions; 

• Create a database in the form of links to original sources containing modelled and observed solar irradiance records;

• Provide recommendations for the climate community and other external researchers on which records to use depending on the timescale and wavelength domain; 

• Incorporate knowledge of stellar analogs into solar irradiance variability estimates and uncertainties on centennial timescales; 

• Estimate the effect from the recent reanalysis of sunspot number on solar irradiance reconstructions; 

• Organise a Focus Meeting on solar irradiance at the XXXth IAU GA in Vienna.