2022 Fiscal Year Annual Research Report
電磁イオンサイクロトロン波動によるイオン散乱に対する電離圏の効果
| Project/Area Number |
22F22022
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| Allocation Type | Single-year Grants |
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| Research Institution | Nagoya University |
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| Host Researcher |
三好 由純 名古屋大学, 宇宙地球環境研究所, 教授 (10377781)
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| Foreign Research Fellow |
PORUNAKATU SHREEDEVI 名古屋大学, 宇宙地球環境研究所, 外国人特別研究員
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| Project Period (FY) |
2022-07-27 – 2024-03-31
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| Keywords | simulation / inner magnetosphere / ring current / plasma waves |
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| Outline of Annual Research Achievements |
BATSRUS+RAM-SCB simulations of the EMIC wave-particle interactions during the 27 May 2017 storm were used to understand the evolution of waves in the inner magnetosphere, their correspondence to the proton precipitation into the subauroral ionosphere. The performance of the model in reproducing the EMIC wave-particle interactions were also assessed. The simulations reproduced the proton precipitation observed in the dusk-midnight sector by the DMSP/NOAA MetOP satellites fairly well. The model qualitatively captured the growth of the EMIC waves during the storm and showed that the EMIC waves, by scattering the ring current, were responsible for the proton precipitation into the dusk-midnight sector during the storm.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
The manuscript has been submitted to JGR Space Physics.
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| Strategy for Future Research Activity |
The results of the simulation study conducted to (1) understand the EMIC wave-particle interactions and their impact on the ionosphere and (2) to assess the performance of the model in reproducing the EMIC wave-particle interactions was presented at several conferences. The manuscript has been submitted to JGR Space Physics.
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