[P-EM12] Space Weather, Space Climate, and VarSITI

[PEM12-P19] Modeling of the thermospheric density variations at around 200 km altitude

*藤原 均¹、三好 勉信²、東尾 奈々³、歌島 昌由¹、Liu Huixin² (1.成蹊大学理工学部、2.九州大学大学院理学研究院、3.宇宙航空研究開発機構)

キーワード：熱圏、質量密度、モデリング、低高度衛星、シミュレーション

Thermospheric density is one of the parameters which have many uncertainty. In particular, during/after geomagnetic storms, the thermospheric density variations are too complex to predict although many researchers have made significant efforts for modeling the density based on satellite observations and numerical simulations. In addition, there are few observations of the thermospheric density in the altitude range of 150-250 km. We should understand the thermospheric density variations for the safety operation of the Low Earth Orbit (LOE) satellites in addition to the scientific purposes. We introduce our research project to develop a method for modeling the thermospheric density variations using low-altitude satellite data and GCM simulations.