EQUATORIAL IONOSPHERIC DYNAMICS OF F-REGION

DYNAMICS OF F-REGION

Abstract

This study aimed to explore and comprehend the dynamics of the ionosphere's F-region, particularly in equatorial regions. A model that was used to solve the dynamics would likely be developed by integrating the satellite data from the communication/navigation outage forecasting system (CNOFS) with other relevant features like solar activity, geomagnetic disturbances, and atmospheric variables. Ion Velocity Meter (IVM) instruments onboard the satellite are used to acquire insights into both particle density and vertical riding speed. During specific days around equal day-night throughout the cycle periods of the 2010 and 2011 years, we have included observation periods for plasma densities and upward drift velocities at different local hours along predetermined courses walked by the spacecraft. The CNOFS satellite signals indicate that daily variations in plasma density between 109 and 1012 m-3 take place between six in the morning and six in the evening. The night mode lasts till dawn, occurring within a geographical latitude range that is only slightly larger than -13.070 south, and hence covers altitude variations ranging from around 400 to 836 kilometers. This daily change highlights the complex and dynamic nature of the equatorial F-region and the ionospheric response to variations in solar illumination and geomagnetic circumstances. These results suggest that further study has to be done to look at factors that could affect ionospheric dynamics, such as solar activity, geomagnetic disturbances, and atmospheric conditions.