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A New Model of Solar Ultraviolet Irradiance Variability with 0.1-0.5 nm Spectral Resolution
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  • Judith L. Lean,
  • Coddington O,
  • S V Marchenko,
  • M T Deland
Judith L. Lean
University of Colorado
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Coddington O
University of Colorado
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S V Marchenko
Science Systems and Applications
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M T Deland
Science Systems and Applications
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Abstract

Key Points • NRLSSI2h solar irradiance variability model with 0.1-0.5 nm resolution captures larger UV. spectral line variability relative to continua. • At 300-400 nm, dominated by spectral features, NRLSSI2h estimates 2-5X smaller solar cycle variability than radiative transfer models. • Upper atmosphere solar radiation absorption can differ using NRLSSI2h (e.g., 34% decrease at 88 km for Lyman alpha).