教師資料查詢 | 類別: 會議論文 | 教師: 汪愷悌 WANG KAITI (瀏覽個人網頁)

標題:Analysis on anisotropy variations for pitch angle distributions of electrons with various parameters at dipolarization sites in the inner plasma sheet
學年107
學期2
發表日期2019/05/26
作品名稱Analysis on anisotropy variations for pitch angle distributions of electrons with various parameters at dipolarization sites in the inner plasma sheet
作品名稱(其他語言)
著者Kaiti Wang; Zhuo-Ren Lang; Ching-Huei Lin; Tohru Hada; Toshi Nishimura
作品所屬單位
出版者
會議名稱Japan Geoscience Union Meeting 2019
會議地點千葉, 日本
摘要During geomagnetic activities, dipolarization of geomagnetic fields can been found to occur at tailside. In this study, we investigate variations in anisotropies of pitch angle distributions for electrons at 63 observed dipolarization sites around distance of 10 RE (Earth radii) near the magnetic equator in the inner plasma sheet when auroral electrojet AL index decreases. Observational data from 2008 to 2011 for
electrons below ~26 keV from the instrument ESA (ElectroStatic Analyzer) onboard of THEMIS mission are adopted. Followed from our previous presentation in which the dependence of these variations on field
line lengths (FLL) was focused on [Wang et al., 2018], we present new analysis results concentrating on
the dependence of the changes as well as the rates of changes in FLL, magnetic field strengths, and dipolarization angles, during a dipolarizaion period. Comparisons between the anisotropy variations in
pitch angle distributions of electrons and the associated bounce time of electrons, event dipolarization time, and measured environmental electric fields will also be presented and discussed.

References
Wang, K., Z. R. Lang, C. H. Lin, T. Hada, A. B. C. Chen, Y. Nishimura (2018). On the field line length
dependence of variations in anisotropies for pitch angle distributions of keV electrons at dipolarization
sites in the tailside. PEM16-25, JpGU Meeting 2018, Chiba, Japan.
關鍵字dipolarization;anisotropy of pitch angle distributions of electrons;observations of THEMIS mission
語言英文
收錄於
會議性質國際
校內研討會地點
研討會時間20190526~20190530
通訊作者Kaiti Wang; Zhuo-Ren Lang; Ching-Huei Lin; Tohru Hada; Toshi Nishimura
國別日本
公開徵稿
出版型式
出處
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!