09:30 〜 09:45
[PEM11-27] Validation of a revised version of whole atmosphere-ionosphere coupled model GAIA
キーワード：電離圏、熱圏、宇宙天気、モデリング、シミュレーション、データ同化
Temporal and spatial variations in the ionospheric electron density and thermospheric mass density can have significant impacts on radio communications between ground and space, GNSS navigations, orbits of satellites and space debris, and so on. In order tonowcast and forecast upper atmospheric variations and disturbances, a whole atmospheric model, GAIA, has been developed. A number of minor and major revisions have been made to the model, including treatments of ionospheric energetics and chemical processes, solar irradiance inputs, parameter adjustments and so on. The revised version of GAIA is compared with thermosphere and ionosphere observations for its validation. We discuss the accuracy and uncertainty of the model as well as future improvements.