Japan Geoscience Union Meeting 2018

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[EE] Poster

P (Space and Planetary Sciences) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM10] Coupling Processes in the Atmosphere-Ionosphere System

Tue. May 22, 2018 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Huixin Liu(Earth and Planetary Science Division, Kyushu University SERC, Kyushu University), Loren Chang(Institute of Space Science, National Central University), Yuichi Otsuka(名古屋大学宇宙地球環境研究所)

[PEM10-P05] Seasonal variation of the plasma bubble occurrence rate

*Hiroto Takahashi1, Huixin Liu1 (1.Kyushu University)

Keywords:Plasma bubble

We investigate the seasonal variation and the azimuthal distribution of the amplitude scintillation occurrence rate with the data observed by GPS ground receiver at Kototabang from 2010 to 2015. Its year-to-year variation shows the well-known solar activity. It also confirms the known seasonal variation, with local maxima in equinoxes and the local maximum in March is larger than that in September as reported in previous work. Furthermore, it also shows an azimuth preference, with stronger occurrence rate in the south. This feature is similar to that obtained by [Abadi et al., 2017] at Pontianak and Bandung. This is mainly because the equatorial ionization ionization anomaly (EIA) crest locates in this direction.