Analysis of Global Ionospheric Response to Solar Flares Based on Total Electron Content and Very Low Frequency Signals
نویسندگان
چکیده
The response of the global ionosphere to solar flares is an important topic in field space weather. ionospheric comprehensively analyzed from perspectives total electron content (TEC) and very low frequency (VLF) signals by using flare data on eruption days X-class 2006 2019, including level, duration, geographical location, local time. In addition, relationship between X-ray flux VLF phase variation studied through correlation analysis. concepts disturbance intensity (DI) angle are defined, a DI evaluation model established help detect difference sensitivity TEC signals. Results show following. (1) higher level longer greater ionosphere. Simultaneously, phenomenon exists which caused low-level long-lasting than that high-level flares. (2) exhibit good correlation, they also closely related location degree station facing sun more evident away sun. stations morning (local time) obvious afternoon, increases along direction Earth’s rotation. (3) When at same lowest causes signal response. unevenly distributed within interval [0°, 90°], 85°. considerably TEC, two even stride across level.
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ژورنال
عنوان ژورنال: IEEE Access
سال: 2021
ISSN: ['2169-3536']
DOI: https://doi.org/10.1109/access.2021.3072427