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  • Presentation | SA23D: Recent Advances in the Understanding of Equatorial Plasma Dynamics and Ionospheric Irregularities: Observations and Simulations I Poster
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  • SA23D-2408: On the Physical Processes Controlling Equatorial Plasma Bubble Dynamics During the January 2025 Geomagnetic Storms
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Author(s):
Giorgio Picanço, Space Science Laboratory, University of Massachusetts Lowell (First Author, Presenting Author)
Ivan Galkin, Space Science Laboratory, University of Massachusetts Lowell


Equatorial plasma bubbles are large irregularities in the upper atmosphere that can disrupt satellite communication and GPS signals. These bubbles often occur at night near the magnetic equator and are influenced by space weather. In this study, we investigated how these bubbles were either suppressed or intensified during a series of geomagnetic storms that took place between January 1 and 5, 2025. We used data from several ground- and space-based instruments, including satellites and radio sensors, to monitor changes in the upper atmosphere over the Americas. Our findings show that storm-related electric fields in space can either prevent or trigger the formation of these bubbles, depending on the local time and seasonal conditions. Understanding when and why these bubbles occur helps scientists improve space weather forecasts and can benefit technologies that rely on satellite signals, such as navigation, communication, and climate monitoring systems.



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