Japan Geoscience Union Meeting 2018

Presentation information

[EE] Poster

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

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

Thu. May 24, 2018 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Ryuho Kataoka(National Institute of Polar Research), Antti A Pulkkinen (NASA Goddard Space Flight Center), Kanya Kusano(名古屋大学宇宙地球環境研究所, 共同), Kazuo Shiokawa(Institute for Space-Earth Environmental Research, Nagoya University)

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

*Hitoshi Fujiwara1, Yasunobu Miyoshi2, Nana Higashio3, Masayoshi Utashima1, Huixin Liu2 (1.Faculty of Science and Technology, Seikei University, 2.Department of Earth and Planetary Sciences, Faculty of Sciences, Kyushu University, 3.Japan Aerospace eXploration Agency)

Keywords:thermosphere, mass density, modeling, low altitude satellite, simulation

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.