SSI Variations in the visible as observed with SOLAR/SOLSPEC during cycle 24 – Comparison with SORCE/SIM. - Archive ouverte HAL Access content directly
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SSI Variations in the visible as observed with SOLAR/SOLSPEC during cycle 24 – Comparison with SORCE/SIM.

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Abdanour Irbah
Luc Damé
  • Function : Author
  • PersonId : 951213
Mustapha Meftah
  • Function : Author
  • PersonId : 937806
Slimane Bekki

Abstract

The solar spectral irradiance (SSI) and its temporal variations are of prime importance to apprehend the physics of the Sun and to understand its effects on Earth climate through changes of atmospheric properties. Ground based measurements of SSI are indeed affected by the Earth atmosphere and space observations are therefore required to perform adequate observations. Only a few long series of SSI space measurements were obtained these last decades. The SOLSPEC instrument of the SOLAR payload on the International Space Station (ISS) has recorded one of them from April 2008 to February 2017 covering almost the whole solar cycle 24. The instrument is a spectro-radiometer recording data of the Sun from 166 to 3088 nm. Operated from the ISS in a harsh environment it needed appropriate processing methods to extract significant scientific results from noise and instrumental effects. We present the methods used to process the data to evidence visible SSI variations during cycle 24. We discuss the results obtained showing SSI variations in phase with solar activity. We compare them with SORCE/SIM measurements.
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Dates and versions

insu-01676404 , version 1 (05-01-2018)

Identifiers

  • HAL Id : insu-01676404 , version 1

Cite

Abdanour Irbah, Luc Damé, Mustapha Meftah, Slimane Bekki, David Boisée. SSI Variations in the visible as observed with SOLAR/SOLSPEC during cycle 24 – Comparison with SORCE/SIM.. AGU 2017 Fall Meeting, Dec 2017, New Orleans, United States. ⟨insu-01676404⟩
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