日本地球惑星科学連合2021年大会

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[E] 口頭発表

セッション記号 P (宇宙惑星科学) » P-EM 太陽地球系科学・宇宙電磁気学・宇宙環境

[P-EM11] Coupling Processes in the Atmosphere-Ionosphere System

2021年6月3日(木) 09:00 〜 10:30 Ch.05 (Zoom会場05)

コンビーナ:Liu Huixin(九州大学理学研究院地球惑星科学専攻 九州大学宙空環境研究センター)、Chang Loren(Institute of Space Science, National Central University)、大塚 雄一(名古屋大学宇宙地球環境研究所)、Yue Deng(University of Texas at Arlington)、座長:Liu Huixin(九州大学理学研究院地球惑星科学専攻 九州大学宙空環境研究センター)、木暮 優(国立極地研究所)

09:15 〜 09:30

[PEM11-02] Model Simulation and Observation of Equatorial Ionospheric Response to Substorm

*Qian Wu1,2、Wenbin Wang1、Dong Lin1 (1.National Center for Atmospheric Research、2.COSMIC, UCAR)

キーワード:Equatorial Ionosphere, COSMIC, GOLD

Equatorial ionosphere can react to substorm events via direct penetrating electric field. In the past, the thermosphere and ionosphere model driven by the high empirical ion convection models lacked the dynamic high latitude input to properly simulate the penetrating electric field and equatorial response. The recently developed magnetospheric and ionospheric coupling model GTR (GAMERA-TIEGCM-RCM) aims to resolve the issue. GTR is part of the Multiscale Atmosphere-Geospace Environment (MAGE) modeling effort. We will simulate recent substorm events to examine the penetrating electric field effect. Additionally, we will use the observations from recent missions such as GOLD, COSMIC 2, and ICON to validate the simulation results. These three missions provide unprecedented coverage of the equatorial ionosphere including ion density profiles, UV images, ion drift, and neutral winds. The ion drift and neutral winds are particularly important for understanding the equatorial dynamo.