NSSC OpenIR  > 空间科学部
The effect of periodic variations of thermospheric density on CHAMP and GRACE orbits
Xu, Jiyao; Wang, Wenbin; Lei, Jiuhou; Sutton, E. K.; Chen, Guangming; Xu, JY (reprint author), Chinese Acad Sci, State Key Lab Space Weather, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2011
Volume116Pages:A02315
ISSN2169-9380
Language英语
AbstractIn this paper thermosphere densities observed by the CHAMP and GRACE satellites and their orbital parameters are used to investigate the effect of periodic oscillations in thermospheric densities (7-27 days) caused by solar rotation and periodic magnetic activity on satellite orbits during 2003-2005. Two new results are obtained in this study. First, the response of the mean radius of the satellite orbit per revolution (MRPR) to the oscillations in the mean atmospheric density per revolution (MDPR) increased linearly with oscillation periods. Therefore, MRPR had a strong oscillation near the 27 day period. However, it had no obvious 7, 9, and 13.5 day oscillations, although there were strong oscillations at the same periods in MDPR. Second, there was a phase difference of pi/2 between the oscillations of MRPR and MDPR. The phases of the oscillations in MRPR led the phases of the variations in MDPR. The correlation coefficient between the 27 day oscillations in MRPR and those in MDPR was 0.83 with a phase difference of -6.8 days for CHAMP; the correlation for GRACE was 0.67 with a phase difference of -6.4 days. The amplitudes of the oscillations in MRPR of CHAMP were larger than those of GRACE because GRACE had a higher orbit than CHAMP. These features are in good agreement with our theoretical analysis.; In this paper thermosphere densities observed by the CHAMP and GRACE satellites and their orbital parameters are used to investigate the effect of periodic oscillations in thermospheric densities (7-27 days) caused by solar rotation and periodic magnetic activity on satellite orbits during 2003-2005. Two new results are obtained in this study. First, the response of the mean radius of the satellite orbit per revolution (MRPR) to the oscillations in the mean atmospheric density per revolution (MDPR) increased linearly with oscillation periods. Therefore, MRPR had a strong oscillation near the 27 day period. However, it had no obvious 7, 9, and 13.5 day oscillations, although there were strong oscillations at the same periods in MDPR. Second, there was a phase difference of pi/2 between the oscillations of MRPR and MDPR. The phases of the oscillations in MRPR led the phases of the variations in MDPR. The correlation coefficient between the 27 day oscillations in MRPR and those in MDPR was 0.83 with a phase difference of -6.8 days for CHAMP; the correlation for GRACE was 0.67 with a phase difference of -6.4 days. The amplitudes of the oscillations in MRPR of CHAMP were larger than those of GRACE because GRACE had a higher orbit than CHAMP. These features are in good agreement with our theoretical analysis.
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/122/3108
Collection空间科学部
Corresponding AuthorXu, JY (reprint author), Chinese Acad Sci, State Key Lab Space Weather, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Xu, Jiyao,Wang, Wenbin,Lei, Jiuhou,et al. The effect of periodic variations of thermospheric density on CHAMP and GRACE orbits[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2011,116:A02315.
APA Xu, Jiyao,Wang, Wenbin,Lei, Jiuhou,Sutton, E. K.,Chen, Guangming,&Xu, JY .(2011).The effect of periodic variations of thermospheric density on CHAMP and GRACE orbits.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,116,A02315.
MLA Xu, Jiyao,et al."The effect of periodic variations of thermospheric density on CHAMP and GRACE orbits".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116(2011):A02315.
Files in This Item:
File Name/Size DocType Version Access License
2011116A02315.pdf(1870KB) 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
[Xu, Jiyao]'s Articles
[Wang, Wenbin]'s Articles
[Lei, Jiuhou]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, Jiyao]'s Articles
[Wang, Wenbin]'s Articles
[Lei, Jiuhou]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, Jiyao]'s Articles
[Wang, Wenbin]'s Articles
[Lei, Jiuhou]'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.