[P-EM18] 大気圏・電離圏

[PEM18-10] 熱圏-電離圏結合データ同化モデルによる擾乱時電離圏モデリング

*陳 佳宏¹、Lin Charles¹、Matsuo Tomoko² (1.台湾国立成功大学地球科学学科、2.コロラド大学航空宇宙工学)

キーワード：電離圏データ同化モデル、日食時の電離圏変化、磁気嵐時の電離圏予測

Data assimilation system is a powerful tool to modeling the ionosphere during quiet and disturbed conditions in more realizations. Recently, we have developed a coupled thermosphere-ionosphere data assimilation system and discussed its capability in the ionospheric forecasting and the scientific issues in the ionosphere. In the first of this presentation, I will introduce the data assimilation system developed in this study by assimilating total electron content (TEC) into a coupled thermosphere-ionosphere model. Then I will show the capability of this system on the geomagnetic storm-time ionospheric forecasting, evening eastward pre-reversal enhancement (PRE) electric field, and the neutral atmosphere adjustments (neutral winds, neutral temperatures, and neutral compositions) during 21 August 2017 solar eclipse event.