Modelling short-term Solar Spectral Irradiance (SSI) using coronal electron density and temperature profiles based on solar magnetic field observations

J. M. Rodríguez Gómez, L. E.Antunes Vieira, A. Dal Lago, J. Palacios, L. A. Balmaceda, T. Stekel

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Some key physical processes that impact the evolution of Earth's atmosphere on timescale from days to millennia, such as the EUV emissions, are determined by the solar magnetic field. However, observations of the solar spectral irradiance are restricted to the last few solar cycles and are subject to large uncertainties. We present a physics-based model to reconstruct short-term solar spectral irradiance (SSI) variability. The coronal magnetic field is estimated to employ the Potential Field Source Surface extrapolation (PFSS) based on observational synoptic charts and magnetic flux transport model. The emission is estimated to employ the CHIANTI atomic database 8.0. The performance of the model is compared to the emission observed by TIMED/SORCE.

Original languageEnglish
Pages (from-to)82-85
Number of pages4
JournalProceedings of the International Astronomical Union
Volume12
DOIs
Publication statusPublished - 2016
Externally publishedYes

Keywords

  • Corona
  • Magnetic fields
  • Photosphere
  • Sun

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