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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/207412
GNSS Solar Astronomy in real-time during more than one solar cycle
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This work presents a summary of the continuous non-stop (hereinafter 24/7) real-time measurement and warning system for EUV solar activity, which is based on worldwide multifrequency Global Navigation Satellite Systems (GNSS) observations. The system relies on continuous tracking of the intensity of expected global patterns in the Earth's ionosphere's free electron distribution, which are associated with solar flares. The paper includes a discussion on the foundations of GNSS Solar Astronomy, along with details on its real-time implementation that began in 2011. Furthermore, a summary of the corresponding validation is provided, comparing it to external and direct solar EUV flux measurements obtained from SOHO-SEM. Finally, there will be a brief mention of the ongoing e orts to extend this technique to detect huge extra-solar sources.
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HERNÁNDEZ PAJARES, Manuel, et al. GNSS Solar Astronomy in real-time during more than one solar cycle. Advances in Space Research. 2023. ISSN 0273-1177. [consulted: 19 of August of 2026]. Available at: https://hdl.handle.net/2445/207412