[P-EM07_30PO1] Lightning and TLEs and their effects on the lower and middle atmosphere

★ [PEM07-P01] 国際宇宙ステーション搭載GLIMSミッションにより観測された雷関連電磁気現象に関する研究

*柿沼 遠方¹、芳原 容英¹、牛尾 知雄²、佐藤 光輝³、森本 健志⁴、高橋 幸弘⁵、鈴木 睦⁶ (1.電気通信大学 情報理工学研究科、2.大阪大学大学院工学研究科情報通信工学部門、3.北海道大学 大学院理学研究院、4.近畿大学理工学部、5.海道大学・大学院理学院・宇宙理学専攻、6.宇宙航空研究開発機構宇宙科学研究本部)

キーワード：中間圏発光現象, 雷放電, GLIMS, 電離層擾乱, 電荷モーメント

In this paper we report the preliminary results of ionospheric perturbation and causative lightning discharges observed by JEM-GLIMIS mission to study the electromagnetic coupling mechanism between the tropospheric lightning and overlaying ionosphere. Continuous nadir optical observations of lightning discharges are performed by ISS JEM-GLIMS mission and many lightning images have been observed globally. Ionospheric perturbations and electrical properties of causative lightning discharges such as polarity and vertical charge moment changes are derived by the data from UEC's ground-based observation networks of VLF/LF transmitter signal reception and of ELF waveforms respectively. We discuss the electrical coupling efficiencies from the tropospheric lightning to the ionosphere by comparing the area of the lightning flash and corresponding subionospheroic VLF disturbances and lightning properties.