[P-EM12] Coupling Processes in the Atmosphere-Ionosphere System

5:15 PM - 7:15 PM JST(8:15 AM - 10:15 AM UTC)

[PEM12-P09] Statistical analysis of the impact of sudden stratospheric warming on the sporadic E layer by ionosonde observations

*Tomoki Maeda¹, Huixin Liu², Yosuke Yamazaki³ (1.Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University, 2.Earth and Planetary Science Division, Kyushu University SERC, Kyushu University, 3.Leibniz Institute of Atmospheric Physics at the University of Rostock, Kühlungsborn, Germany)

Keywords:

the Sporadic E Layer (Es Layer),Sudden Stratospheric Warming(SSW)

One of the ionospheric phenomena is the Sporadic E Layer (Es Layer), which is a special type of ionosphere that occurs locally and unexpectedly around 100 km above the Earth. Andoh et al., 2024 found a relationship between SSW and winter Es-layer strengthening in 2009. In this study, we will statistically analyze the variations in the Es layer associated with the weakening of the stratospheric polar vortex related to SSW and its opposite strengthening of the polar vortex using ionosonde observations to examine the relationship between the two.