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Space Science Reviews

, Volume 94, Issue 1–2, pp 83–91 | Cite as

Variations of Solar Ultraviolet Irradiance Observed by the UARS SOLSTICE — 1991 to 1999

  • Gary Rottman
Article

Abstract

The Solar Stellar Irradiance Comparison Experiment (SOLSTICE) is one of ten instruments on the Upper Atmosphere Research Satellite (UARS) — one of two instruments measuring the solar ultraviolet irradiance. The instrument is a three channel spectrometer covering the spectral range 120 to 420 nm with a spectral resolution of approximately 0.2 nm. It has been successfully operating since October 1991, and has now provided more than eight years of data, extending from near the peak of solar cycle 22, through solar minimum and into the new cycle. The data provide time series that display solar variations over time scales from a few days up to the 11-year solar cycle. Quantitative estimates of amplitudes of both rotational modulation and the solar cycle variation in the 1991–1999 epoch are given for the UV spectrum between 119 and 300 nm.

Keywords

Time Series Spectral Range Solar Cycle Quantitative Estimate Spectral Resolution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 2000

Authors and Affiliations

  • Gary Rottman
    • 1
  1. 1.Laboratory for Atmospheric and Space PhysicsUniversity of ColoradoBoulderUSA

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