NSSC OpenIR  > 空间科学部
Proton auroral intensification induced by interplanetary shock on 7 November 2004
Su, Zhenpeng; Zong, Qiu-Gang; Yue, Chao; Wang, Yongfu; Zhang, Hui; Zheng, Huinan; Su, ZP (reprint author), Univ Sci & Technol China, Chinese Acad Sci Key Lab Basic Plasma Phys, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2011
Volume116Pages:A08223
ISSN0148-0227
Language英语
AbstractWe report a shock-induced auroral intensification event observed by the IMAGE spacecraft on 7 November 2004. The comparison of simultaneous auroral snapshots, obtained from FUV-SI12 and FUV-SI13 cameras onboard IMAGE spacecraft, indicates the dominance of proton precipitation (rather than electron precipitation) throughout the auroral oval region. The proton aurora in the postnoon sector showed the most significant intensification, with luminosity increasing by 5 times or more. We describe the main characteristics of interplanetary parameters observed by the ACE and Geotail satellites and plasma parameters within the mapped precipitation region detected by the Los Alamos National Laboratory 1990-1995 satellite. The generation mechanism of postnoon proton auroral intensification is further investigated on the basis of these observations. The estimated increase of loss cone size was not enough to produce the required proton auroral precipitation enhancement. The expected oxygen band electromagnetic ion cyclotron waves (no available observation), in the highly fluctuating density region during the shock period, might contribute to the enhanced precipitation of auroral protons. Our new finding is that the shock-driven buildup of 1-10 keV proton fluxes could account for the observed proton auroral intensification.; We report a shock-induced auroral intensification event observed by the IMAGE spacecraft on 7 November 2004. The comparison of simultaneous auroral snapshots, obtained from FUV-SI12 and FUV-SI13 cameras onboard IMAGE spacecraft, indicates the dominance of proton precipitation (rather than electron precipitation) throughout the auroral oval region. The proton aurora in the postnoon sector showed the most significant intensification, with luminosity increasing by 5 times or more. We describe the main characteristics of interplanetary parameters observed by the ACE and Geotail satellites and plasma parameters within the mapped precipitation region detected by the Los Alamos National Laboratory 1990-1995 satellite. The generation mechanism of postnoon proton auroral intensification is further investigated on the basis of these observations. The estimated increase of loss cone size was not enough to produce the required proton auroral precipitation enhancement. The expected oxygen band electromagnetic ion cyclotron waves (no available observation), in the highly fluctuating density region during the shock period, might contribute to the enhanced precipitation of auroral protons. Our new finding is that the shock-driven buildup of 1-10 keV proton fluxes could account for the observed proton auroral intensification.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3156
Collection空间科学部
Corresponding AuthorSu, ZP (reprint author), Univ Sci & Technol China, Chinese Acad Sci Key Lab Basic Plasma Phys, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China.
Recommended Citation
GB/T 7714
Su, Zhenpeng,Zong, Qiu-Gang,Yue, Chao,et al. Proton auroral intensification induced by interplanetary shock on 7 November 2004[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2011,116:A08223.
APA Su, Zhenpeng.,Zong, Qiu-Gang.,Yue, Chao.,Wang, Yongfu.,Zhang, Hui.,...&Su, ZP .(2011).Proton auroral intensification induced by interplanetary shock on 7 November 2004.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,116,A08223.
MLA Su, Zhenpeng,et al."Proton auroral intensification induced by interplanetary shock on 7 November 2004".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116(2011):A08223.
Files in This Item: Download All
File Name/Size DocType Version Access License
2011116A08223.pdf(923KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Su, Zhenpeng]'s Articles
[Zong, Qiu-Gang]'s Articles
[Yue, Chao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Su, Zhenpeng]'s Articles
[Zong, Qiu-Gang]'s Articles
[Yue, Chao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Su, Zhenpeng]'s Articles
[Zong, Qiu-Gang]'s Articles
[Yue, Chao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2011116A08223.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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