Observations of Electric Fields at Dipolarization Sites from THEMIS mission: Preliminary Results

Kaiti Wang; Ching-Huei  Lin; Po-Yen Chen; Shi-Hung Chuang Yang; Tai-Yuan Wang; Yi-Ju Chen; Guo-Cing Su; Zhuo-Ren Lang

講演情報

[EE] ポスター発表

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-EM16] [EE] Physics of Inner Magnetosphere Coupling

2017年5月24日(水) 13:45 〜 15:15 ポスター会場 (国際展示場 7ホール)

コンビーナ:Danny Summers(Memorial University of Newfoundland)、Jichun Zhang(University of New Hampshire Main Campus)、海老原祐輔(京都大学生存圏研究所)、桂華邦裕(東京大学大学院理学系研究科地球惑星科学専攻)、Aleksandr Y Ukhorskiy(Johns Hopkins University Applied Physics Laboratory)、Dae-Young Lee(Chungbuk Natl Univ)、Yiqun Yu(Beihang University)、三好由純(名古屋大学宇宙地球環境研究所)

ポスター会場マップを表示

[PEM16-P08] Observations of Electric Fields at Dipolarization Sites from THEMIS mission: Preliminary Results

*Kaiti Wang¹、Ching-Huei Lin²、Po-Yen Chen¹、Shi-Hung Chuang Yang¹、Tai-Yuan Wang¹、Yi-Ju Chen¹、Guo-Cing Su¹、Zhuo-Ren Lang³ (1.Tamkang University、2.Chien-Hsin University of Science and Technology、3.National Cheng Kung University)

キーワード：THEMIS mission, Electric Fields, Dipolarization

The electric fields at diplarization sites in the Earth's tailside have been found to be disturbed when geomagnetic activities occurs (i.e., AL index decreases). These fields can accelerate electrons so that they are possible to be associated with electron injection or changes in electrons' pitch-angles. Therefore, it is essential to understand the variations of these environmental electric fields when dipolarization occurs. In this study, observational data of electric fields from the EFI (Electric Field Instrument) on board of THEMIS mission are analyzed. The database are selected based on dipolarization events around 10 Earth radii identified according to THEMIS observations from year of 2008 to 2011. Both the large-scale and wave-scale features of these dipolarization electric fields will be investigated. The preliminary results of this analysis will be shown in the poster.