A new observational solar irradiance composite

Micha Schöll (1) , Thierry Dudok de Wit (2) , Margit Haberreiter (1) , Matthieu Kretzschmar (2) , Stergios Misios (3) , Klairie Tourpali (4) , Werner Schmutz (1)

1 PMOD/WRC - Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center
2 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
3 Aristotle University of Thessaloniki
4 Laboratory of Atmospheric Physics [Thessaloniki]

Variations of the spectral solar irradiance (SSI) are an important driver for the chemistry, temperature and dynamics of the Earth's atmosphere and ultimately the Earth's climate. Due to the sparce and scattered SSI data sets it is important to establish tools to derive a consistent SSI dataset, including realistic uncertainties. We present the a new SSI composite based on the face values of SSI observations and applying a probabilistic method that takes into account the uncertainty of the data set scale-wise. We will present the data set and discuss its effects on the Earth's atmosphere in relation to SSI reconstruction models.

Domaines: Planète et Univers [physics]

Micha Schöll, Thierry Dudok de Wit, Margit Haberreiter, Matthieu Kretzschmar, Stergios Misios, et al.. A new observational solar irradiance composite. EGU General Assembly 2016, Apr 2017, Vienna, Austria. 18, pp.2016 - 17963, 2016. ⟨insu-01670565⟩