Total solar irradiance (TSI) and solar spectral irradiance (SSI) are fundamental drivers of the Earth system. Understanding the Sun's influence on Earth’s atmosphere, oceans, and land surfaces requires knowledge of solar irradiance variability from past centuries to the present-day. An improved understanding of historical solar variability leads to more credible future solar activity projections. Furthermore, various geophysical applications have different requirements for the temporal cadence, spectral range, resolution, and accuracy of the solar irradiance information.

 

This session welcomes abstracts on recent advances in the understanding of solar irradiance variability in the past, present, and future from measurements and models. We also welcome abstracts that spotlight how continuous solar irradiance measurements drive improvements in various geophysical applications including global energy and climate assessments, the near-Earth space environment for space weather applications, and satellite navigation and mission planning in Low and Very Low Earth Orbit (LEO and VLEO).