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On the relationship between thermosphere density and solar wind parameters during intense geomagnetic storms
Guo, Jianpeng1,3; Feng, Xueshang1; Forbes, Jeffrey M.2; Lei, Jiuhou2; Zhang, Jie4; Tan, Chenming3
2010-12-30
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
卷号115
摘要Total mass density measurements at 72 degrees S, 0 degrees, and 72 degrees N latitude from the CHAMP satellite near 400 km altitude are used to provide a quantitative assessment of the relationship between solar wind energy input and density variations during intense (Dst <= -100 nT) geomagnetic storms that occurred between August 2001 and December 2006. Correlations between the thermosphere density variations and various solar wind parameters and coupling functions representing the energy input into the thermosphere reveal significantly different characteristics during different geomagnetic storms. Statistical analysis shows that, out of the chosen solar wind parameters including coupling functions, the Borovsky parameter correlates best with the global scale density variations. The correlations at the equator are significantly higher than those at high latitudes. Moreover, the correlations on the dayside are almost the same as those on the nightside at 72 degrees S and 0 degrees latitude, whereas the correlation on the nightside is slightly higher than that on the dayside at 72 degrees N latitude. These results indicate that it might be possible to use solar wind measurements to improve predictions of thermosphere density perturbations and the resulting changes in satellite drag.
DOI10.1029/2010JA015971
收录类别SCI
语种英语
WOS记录号WOS:000285839400006
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7803
专题太阳物理研究部
作者单位1.Chinese Acad Sci, CSSAR, State Key Lab Space Weather, SIGMA Weather Grp, Beijing 100190, Peoples R China
2.Univ Colorado, Dept Aerosp Engn Sci, Boulder, CO 80309 USA
3.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
4.George Mason Univ, Dept Computat & Data Sci, Fairfax, VA 22030 USA
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Guo, Jianpeng,Feng, Xueshang,Forbes, Jeffrey M.,et al. On the relationship between thermosphere density and solar wind parameters during intense geomagnetic storms[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2010,115.
APA Guo, Jianpeng,Feng, Xueshang,Forbes, Jeffrey M.,Lei, Jiuhou,Zhang, Jie,&Tan, Chenming.(2010).On the relationship between thermosphere density and solar wind parameters during intense geomagnetic storms.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,115.
MLA Guo, Jianpeng,et al."On the relationship between thermosphere density and solar wind parameters during intense geomagnetic storms".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 115(2010).
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