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May 31, 2026Geomagnetism and Aeronomy0 citations

Global Analysis of Bottomside Ionospheric Parameters Using FORMOSAT-7/COSMIC-2 Data

Global Characterization of Bottomside Ionospheric Parameters (B0 and B1) Using FORMOSAT-7/COSMIC-2 Radio Occultation Observations and Evaluation of IRI-2020 during Solar Cycle 25

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Authors

ISIswariya S.MMMefe MosesDODaniel Okoh

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Overview

Randomized trial characterizes ionospheric parameters in various conditions, suggesting model improvements.

Key Points

  • This research aims to analyze the bottomside ionospheric parameters B0 and B1 and evaluate the IRI-2020 model's accuracy during Solar Cycle 25.
  • Utilized FORMOSAT-7/COSMIC-2 radio occultation data from 2019 to 2024 to gather electron density profiles.
  • Conducted a comprehensive analysis of B0 and B1 variations across diurnal, seasonal, longitudinal, and latitudinal factors.
  • Compared findings with IRI-2020 submodels such as Bil-2000, Gul-1987, and ABT-2009.
  • B0 and B1 values are maximized near the equator with significant seasonal and hemispheric variations.
  • The IRI-2020 model exhibits systematic differences in magnitude and variability compared to COSMIC-2-derived parameters.
  • B0 shows pronounced longitudinal modulation during equinox and summer under high solar activity.

Cite This Study

S. et al. (2026) studied this question.

synapsesocial.com/papers/6a1bcfb05783ba022b6fbb65https://doi.org/10.1134/s0016793226600062
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