NSSC OpenIR  > 空间科学部
The Effects of Solar Wind Dynamic Pressure Changes on the Substorm Auroras and Energetic Electron Injections on 24 August 2005
Li, L. Y.; Wang, Z. Q.; Li, LY (reprint author), Beihang Univ, Sch Space & Environm, Dept Space Sci, Beijing, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2018
Volume123Issue:1Pages:385-399
ISSN2169-9380
Language英语
AbstractAfter the passage of an interplanetary (IP) shock at 06: 13 UT on 24 August 2005, the enhancement (> 6 nPa) of solar wind dynamic pressure and the southward turning of interplanetary magnetic field (IMF) cause the earthward movement of dayside magnetopause and the drift loss of energetic particles near geosynchronous orbit. The persistent electron drift loss makes the geosynchronous satellites cannot observe the substorm electron injection phenomenon during the two substorm expansion phases (06: 57-07: 39 UT) on that day. Behind the IP shock, the fluctuations (similar to 0.5-3 nPa) of solar wind dynamic pressure not only alter the dayside auroral brightness but also cause the entire auroral oval to swing in the day-night direction. However, there is no Pi2 pulsation in the nightside auroral oval during the substorm growth phase from 06: 13 to 06: 57 UT. During the subsequent two substorm expansion phases, the substorm expansion activities cause the nightside aurora oval brightening from substorm onset site to higher latitudes, and meanwhile, the enhancement (decline) of solar wind dynamic pressure makes the nightside auroral oval move toward the magnetic equator (the magnetic pole). These observations demonstrate that solar wind dynamic pressure changes and substorm expansion activities can jointly control the luminosity and location of the nightside auroral oval when the internal and external disturbances occur simultaneously. During the impact of a strong IP shock, the earthward movement of dayside magnetopause probably causes the disappearance of the substorm electron injections near geosynchronous orbit.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6209
Collection空间科学部
Corresponding AuthorLi, LY (reprint author), Beihang Univ, Sch Space & Environm, Dept Space Sci, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Li, L. Y.,Wang, Z. Q.,Li, LY . The Effects of Solar Wind Dynamic Pressure Changes on the Substorm Auroras and Energetic Electron Injections on 24 August 2005[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2018,123(1):385-399.
APA Li, L. Y.,Wang, Z. Q.,&Li, LY .(2018).The Effects of Solar Wind Dynamic Pressure Changes on the Substorm Auroras and Energetic Electron Injections on 24 August 2005.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,123(1),385-399.
MLA Li, L. Y.,et al."The Effects of Solar Wind Dynamic Pressure Changes on the Substorm Auroras and Energetic Electron Injections on 24 August 2005".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 123.1(2018):385-399.
Files in This Item:
File Name/Size DocType Version Access License
20181231385-399.pdf(2759KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, L. Y.]'s Articles
[Wang, Z. Q.]'s Articles
[Li, LY (reprint author), Beihang Univ, Sch Space & Environm, Dept Space Sci, Beijing, Peoples R China.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, L. Y.]'s Articles
[Wang, Z. Q.]'s Articles
[Li, LY (reprint author), Beihang Univ, Sch Space & Environm, Dept Space Sci, Beijing, Peoples R China.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, L. Y.]'s Articles
[Wang, Z. Q.]'s Articles
[Li, LY (reprint author), Beihang Univ, Sch Space & Environm, Dept Space Sci, Beijing, Peoples R China.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.