Solar cycle variation in solar irradiance

Abstract

The correlation between solar irradiance and the 11-year solar activity cycle is evident in the body of measurements made from space, which extend over the past four decades. Models relating variation in solar irradiance to photospheric magnetism have made significant progress in explaining most of the apparent trends in these observations. There are, however, persistent discrepancies between different measurements and models in terms of the absolute radiometry, secular variation and the spectral dependence of the solar cycle variability. We present an overview of solar irradiance measurements and models, and discuss the key challenges in reconciling the divergence between the two.

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Cited by in corpus (14)

• The Mount Wilson Observatory S-index of the Sun
• Solar Irradiance Variability is Caused by the Magnetic Activity on the Solar Surface
• UV solar irradiance in observations and the NRLSSI and SATIRE-S models
• Solar cycle indices from the photosphere to the corona: measurements and underlying physics
• The Dimmest State of the Sun
• Data Fusion of Total Solar Irradiance Composite Time Series Using 41 Years of Satellite Measurements
• Total Solar Irradiance during the Last Five Centuries
• Photometric Properties of Network and Faculae Derived from HMI Data Compensated for Scattered-Light
• Influence of the Sun-like magnetic cycle on exoplanetary atmospheric escape
• Effects of continuum fudging on non-LTE synthesis of stellar spectra. I. Effects on estimates of UV continua and Solar Spectral Irradiance variability
• How faculae and network relate to sunspots, and the implications for solar and stellar brightness variations
• The relationship between bipolar magnetic regions and their sunspots
• Method of frequency dependent correlations: investigating the variability of total solar irradiance
• Solar Spectral Irradiance Variability in Cycle 24: Observations and Models