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The TSIS-1 Hybrid Solar Reference Spectrum
  • +5
  • Odele M Coddington,
  • Erik C Richard,
  • Dave Harber,
  • Peter Pilewkie,
  • Thomas N. Woods,
  • Kelly V. Chance,
  • Xiong Liu,
  • Kang Sun
Odele M Coddington
University of Colorado Boulder, LASP, University of Colorado Boulder, LASP

Corresponding Author:[email protected]

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Erik C Richard
University of Colorado, LASP, University of Colorado, LASP
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Dave Harber
University of Colorado, LASP, University of Colorado, LASP
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Peter Pilewkie
University of Colorado Boulder, University of Colorado Boulder
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Thomas N. Woods
Laboratory for Atmospheric and Space Physics, Laboratory for Atmospheric and Space Physics
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Kelly V. Chance
Harvard-Smithsonian Center for Astrophysics, Harvard-Smithsonian Center for Astrophysics
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Xiong Liu
Harvard-Smithsonian Center for Astrophysics, Harvard-Smithsonian Center for Astrophysics
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Kang Sun
University at Buffalo, State University of New York, University at Buffalo, State University of New York
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Abstract

We present a new solar irradiance reference spectrum representative of solar minimum conditions between solar cycles 24 and 25. The Total and Spectral Solar Irradiance Sensor-1 (TSIS-1) Hybrid Solar Reference Spectrum (HSRS) is developed by applying a modified spectral ratio method to normalize very high spectral resolution solar line data to the absolute irradiance scale of the TSIS-1 Spectral Irradiance Monitor (SIM) and the CubeSat Compact SIM (CSIM). The high spectral resolution solar line data are the Air Force Geophysical Laboratory ultraviolet solar irradiance balloon observations, the ground-based Quality Assurance of Spectral Ultraviolet Measurements In Europe Fourier transform spectrometer solar irradiance observations, the Kitt Peak National Observatory solar transmittance atlas, and the semi-empirical Solar Pseudo-Transmittance Spectrum atlas. The TSIS-1 HSRS spans 202 nm to 2730 nm at 0.01 to ~0.001 nm spectral resolution with uncertainties of 0.3% between 460 and 2365 nm and 1.3% at wavelengths outside that range.