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Development of Super Plasma Bubbles During the 7 September 2017 Geomagnetic Storm Revealed by Coupled GITM-SAMI3 Simulations
Geophysical Research Letters ( IF 4.6 ) Pub Date : 2024-11-14 , DOI: 10.1029/2024gl112211 Zihan Wang, Shasha Zou, J. D. Huba, Aaron Ridley
Geophysical Research Letters ( IF 4.6 ) Pub Date : 2024-11-14 , DOI: 10.1029/2024gl112211 Zihan Wang, Shasha Zou, J. D. Huba, Aaron Ridley
In this study, we used the coupled GITM (Global Ionosphere Thermosphere Model)-SAMI3 (Sami3 is Also a Model of the Ionosphere) model to simulate the response of the ionosphere-thermosphere system during the 7 September 2017 geomagnetic storm. In the simulation results, a super equatorial plasma bubble (SEPB) formed and rose to around magnetic latitude (MLAT). This is attributed to a penetration electric field (PEF) that enhances the growth rate of generalized Rayleigh-Taylor instability (GRTI), while traveling atmospheric/ionospheric disturbances act as a seeding mechanism.
中文翻译:
GITM-SAMI3 耦合模拟揭示的 2017 年 9 月 7 日地磁暴期间超级等离子体气泡的发展
在这项研究中,我们使用耦合的 GITM(全球电离层热层模型)-SAMI3(Sami3 也是电离层的模型)模型来模拟电离层-热层系统在 2017 年 9 月 7 日地磁暴期间的响应。在模拟结果中,一个超赤道等离子体气泡 (SEPB) 形成并上升到 磁纬度 (MLAT) 附近 。这归因于穿透电场 (PEF) 提高了广义瑞利-泰勒不稳定性 (GRTI) 的增长率,而传播的大气/电离层干扰则充当了种子机制。
更新日期:2024-11-15
中文翻译:
GITM-SAMI3 耦合模拟揭示的 2017 年 9 月 7 日地磁暴期间超级等离子体气泡的发展
在这项研究中,我们使用耦合的 GITM(全球电离层热层模型)-SAMI3(Sami3 也是电离层的模型)模型来模拟电离层-热层系统在 2017 年 9 月 7 日地磁暴期间的响应。在模拟结果中,一个超赤道等离子体气泡 (SEPB) 形成并上升到