Solar Irradiance from 165 to 400 nm in 2008 and UV Variations in Three Spectral Bands During Solar Cycle 24

Mustapha Meftah; David Bolsée; Luc Damé; Alain Hauchecorne; Nuno Pereira; Abdanour Irbah; Slimane Bekki; Gaël Cessateur; Thomas Foujols; Rémi Thiéblemont

Solar Irradiance from 165 to 400 nm in 2008 and UV Variations in Three Spectral Bands During Solar Cycle 24

Mustapha Meftah ^{1, *} David Bolsée ² Luc Damé ³ Alain Hauchecorne ¹ Nuno Pereira ² Abdanour Irbah ¹ Slimane Bekki ¹ Gaël Cessateur ² Thomas Foujols ⁴ Rémi Thiéblemont ¹

* Corresponding author

1 STRATO - LATMOS

LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales

2 BIRA-IASB - Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique

3 HEPPI - LATMOS

LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales

4 LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales

Abstract : Accurate measurements of the solar spectral irradiance (SSI) and its temporal variations are of primary interest to better understand solar mechanisms, and the links between solar variability and Earth’s atmosphere and climate. The SOLar SPECtrum (SOLSPEC) instrument of the Solar Monitoring Observatory (SOLAR) payload onboard the International Space Station (ISS) has been built to carry out SSI measurements from 165 to 3088 nm. We focus here on the ultraviolet (UV) part of the measured solar spectrum (wavelengths less than 400 nm) because the UV part is potentially important for understanding the solar forcing of Earth’s atmosphere and climate. We present here SOLAR/SOLSPEC UV data obtained since 2008, and their variations in three spectral bands during Solar Cycle 24. They are compared with previously reported UV measurements and model reconstructions, and differences are discussed.

Document type :

Journal articles

Domain :

Sciences of the Universe [physics] / Astrophysics [astro-ph] / Solar and Stellar Astrophysics [astro-ph.SR]

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Submitted on : Tuesday, October 25, 2016 - 3:43:20 PM
Last modification on : Wednesday, September 18, 2019 - 5:22:05 PM

Solar Irradiance from 165 to 400 nm in 2008 and UV Variations in Three Spectral Bands During Solar Cycle 24

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Solar Irradiance from 165 to 400 nm in 2008 and UV Variations in Three Spectral Bands During Solar Cycle 24

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