Influence of the solar hydrogen Lya line on the GNSS signal delay in the ionospheric D-region
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2022
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Recent research indicates that the influence of the ionospheric D-region on the propagation of satellite signals cannot be ignored during the intense X-radiation emitted during solar X-ray flares. In this paper, we investigate the influence of changes in the solar hydrogen Lya radiation, which is manifested in variations of the D-region electron density and, consequently, the total electron content in this region, on the propagation of the Global Navigation Satellite System (GNSS) signals. We consider changes during a solar cycle and year, represented by the smoothed daily sunspot number and the day of year. The obtained results indicate that the influence of the D-region on these signals is not negligible for positioning with a single signal recorded by a single receiver during the period around the maximum of a solar cycle.
Кључне речи:
solar hydrogen Lya radiation / total electron content / ionosphere / GNSS signal delayИзвор:
Contributions of the Astronomical Observatory Skalnate Pleso, 2022, 52, 3, 116-125Издавач:
- Astronomical Institute of the Slovak Academy of Sciences
Финансирање / пројекти:
Напомена:
- SPECIAL ISSUE ASTROPHYSICAL SPECTROSCOPY: A&M DATA - ATMOSPHERE