Generation mechanism of ionospheric disturbances after the 2022 Hunga Tonga-Hunga Ha’apai volcanic eruption using GNSS-TEC and SuperDARN Hokkaido pair of radars observation data

Atsuki Shinbori1, Yuichi Otsuka1, Takuya Sori2, Michi Nishioka3, Septi Perwitasari4, Takuo T Tsuda5 and Nozomu Nishitani6, (1)Nagoya University, Institute for Space-Earth Environmental Research, Nagoya, Japan, (2)Nagoya University, Nagoya, Japan, (3)NICT National Institute of Information and Communications Technology, Tokyo, Japan, (4)NICT National Institute of Information and Communications Technology, Koganei, Japan, (5)University of Electro-Communications, Tokyo, Japan, (6)ISEE, Nagoya University, Nagoya, Japan