Japan Geoscience Union Meeting 2023

Presentation information

Print

[E] Oral

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

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

Sun. May 21, 2023 10:45 AM - 12:00 PM 101 (International Conference Hall, Makuhari Messe)

convener:Huixin Liu(Earth and Planetary Science Division, Kyushu University SERC, Kyushu University), Yuichi Otsuka(Institute for Space-Earth Environmental Research, Nagoya University), Loren Chang(Department of Space Science and Engineering, National Central University), Yue Deng(University of Texas at Arlington), Chairperson:Charles Lin(Department of Earth Sciences, National Cheng Kung University), Susumu Saito(Electronic Navigation Research Institute, National Institute of Maritime, Port, and Aviation Technology)


11:15 AM - 11:30 AM

[PEM12-08] Changes of the middle and low latitude ionosphere in Asia during 2018 SSW

★Invited Papers

*Libo Liu1 (1.Institute of Geology and Geophysics, Chinese Academy of Sciences)

Keywords:ionosphere, total electron content, SSW

We have installed a network of around 60 GNSS receivers with the ability of receving both the Beidou/Compass system and other GNSS systems to monitor the response of the regional ionosphere in Asia to the drivers of space weather and from the lower atmosphere. The data lasts for several years now. The GNSS network data have been used to study the ionospheric irregularities, ionospheric storms, regional structure of the ionosphere, etc.
In this report we will first show the fine structure of the ionosphere revealed by the GNSS network. Then, we present the variation of the ionosphere to the 2018 sudden stratospheric warming (SSW) event. The variations of diurnal and higher harmonic components of the total electron content (TEC) at selected stations during and after the SSW. Further, the detailed components of the tidal-like components derived from global observations will also be briefly discussed.