The solar spectrum in the UV, EUV, and X ranges: Observations, modelling, and effects on the earth upper atmosphere in the frame of space weather

Jean Lilensten (1) , Matthieu Kretzschmar (2)

1 LPG - Laboratoire de Planétologie de Grenoble
2 IFSI - Istituto di Fisica dello Spazio Interplanetario

In this chapter, we introduce the way the energetic electromagnetic flux is emitted by the Sun, and we present how it creates an upper partly ionized layer in the Earth atmosphere.

Keywords: MG-II INDEX; ULTRAVIOLET IRRADIANCE; MONOCHROMATIC RADIATION; IONIZATION FREQUENCIES; SOLSPEC SPECTROMETER; RESEARCH SATELLITE; GRAZING-INCIDENCE; ROTATING EARTH; NOAA-11 SBUV/2; FLUX MODEL

Jean Lilensten, Matthieu Kretzschmar. The solar spectrum in the UV, EUV, and X ranges: Observations, modelling, and effects on the earth upper atmosphere in the frame of space weather. 7th CNRS Solar Astrophysics School, 2002, St Pierre Oleron, France. pp.53-91. ⟨insu-00357257⟩