Ionospheric Signatures of Repeated Passages of Atmospheric Waves by the 2022 Jan. 15 Tonga eruption: Comparison of QZSS-TEC Observations in Japan with GPS-TEC Observations in Indonesia

Kosuke Heki, Hokkaido University, Sapporo, Japan; Shanghai Astronomical Observatory, Shanghai, China and Ihsan NAUFAL Muafiry Sr, Politeknik Sinar Mas Berau Coal, Dept. Survey and Mapping, Kalimantan Timur, Indonesia