Characteristics and mechanisms of the annual asymmetry of thermospheric mass density
文献类型：期刊论文
| 作者 | Ma RuiPing; Xu JiYao; Wang WenBin; Chen GuangMing; Yuan Wei; Lei JiuHou; Burns, Alan G.; Jiang GuoYing |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2015 |
| 卷号 | 58期号:4页码:540-550 |
| 关键词 | annual asymmetry of thermospheric mass density solar EUV radiation Sun-Earth distance |
| ISSN号 | 1674-7313 |
| 通讯作者 | Xu, JY (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China. |
| 英文摘要 | In this paper, globally-averaged, thermospheric total mass density, derived from the orbits of similar to 5000 objects at 250, 400, and 550 km that were tracked from 1967 to 2006, has been used to quantitatively study the annual asymmetry of thermospheric mass density and its mechanism(s). The results show that thermospheric mass density had a significant annual asymmetry, which changed from year to year. The annual asymmetry at the three altitudes varied synchronously and its absolute value increased with altitudes. The results suggest that there is an annual asymmetry in solar EUV radiation that is caused by the difference in the Sun-Earth distance between the two solstices and the random variation of solar activity within a year. This change in radiation results in an annual change in the thermospheric temperature and thus the scale height of the neutral gas, and is the main cause of the annual asymmetry of thermospheric mass density. The annual asymmetry of mass density increases with altitude because of the accumulating effect of the changes in neutral temperature and scale height in the vertical direction. |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/4599]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Ma RuiPing,Xu JiYao,Wang WenBin,et al. Characteristics and mechanisms of the annual asymmetry of thermospheric mass density[J]. SCIENCE CHINA-EARTH SCIENCES,2015,58(4):540-550. |
| APA | Ma RuiPing.,Xu JiYao.,Wang WenBin.,Chen GuangMing.,Yuan Wei.,...&Jiang GuoYing.(2015).Characteristics and mechanisms of the annual asymmetry of thermospheric mass density.SCIENCE CHINA-EARTH SCIENCES,58(4),540-550. |
| MLA | Ma RuiPing,et al."Characteristics and mechanisms of the annual asymmetry of thermospheric mass density".SCIENCE CHINA-EARTH SCIENCES 58.4(2015):540-550. |
入库方式： OAI收割
来源：国家空间科学中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。