Variations of topside ionospheric scale heights over Millstone Hill during the 30-day incoherent scatter radar experiment
文献类型：期刊论文
| 作者 | Liu, L.; Wan, W.; Zhang, M. -L.; Ning, B.; Zhang, S. -R.; Holt, J. M. |
| 刊名 | ANNALES GEOPHYSICAE
 |
| 出版日期 | 2007 |
| 卷号 | 25期号:9页码:2019-2027 |
| 关键词 | ionosphere ionospheric disturbances midlatitude ionosphere plasma temperature and density |
| ISSN号 | 0992-7689 |
| 文献子类 | Article |
| 英文摘要 | A 30-day incoherent scatter radar (ISR) experiment was conducted at Millstone Hill (288.5 degrees E, 42.6 degrees N) from 4 October to 4 November 2002. The altitude profiles of electron density N,, ion and electron temperature (T-i and T-e), and line-of-sight velocity during this experiment were processed to deduce the topside plasma scale height Hp, vertical scale height VSH, Chapman scale height H-m, ion velocity, and the relative altitude gradient of plasma temperature (dT(p)/dh)/T-p, as well as the F-2 layer electron density (N,,F2) and height (h,,F2). These data are analyzed to explore the variations of the ionosphere over Millstone Hill under geomagnetically quiet and disturbed conditions. Results show that ionospheric parameters generally follow their median behavior under geomagnetically quiet conditions, while the main feature of the scale heights, as well as other parameters, deviated significantly from their median behaviors under disturbed conditions. The enhanced variability of ionospheric scale heights during the storm-times suggests that the geomagnetic activity has a major impact on the behavior of ionospheric scale heights, as well as the shape of the topside electron density profiles. Over Millstone Hill, the diurnal behaviors of the median VSH and H-m are very similar to each other and are not so tightly correlated with that of the plasma scale height H-p or the plasma temperature. The present study confirms the sensitivity of the ionospheric scale heights over Millstone Hill to thermal structure and dynamics. The values of VSH/H-p tend to decrease as (dT(p)/dh)/T-p becomes larger or the dynamic processes become enhanced. |
| WOS关键词 | RADIO OCCULTATION MEASUREMENTS ; ARECIBO ; MODEL ; PEAK ; IRI |
| WOS研究方向 | Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000250895600010 |
| 出版者 | COPERNICUS PUBLICATIONS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/67394]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu, L. |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.MIT, Haystack Observ, Westford, MA 01886 USA |
| 推荐引用方式 GB/T 7714 | Liu, L.,Wan, W.,Zhang, M. -L.,et al. Variations of topside ionospheric scale heights over Millstone Hill during the 30-day incoherent scatter radar experiment[J]. ANNALES GEOPHYSICAE,2007,25(9):2019-2027. |
| APA | Liu, L.,Wan, W.,Zhang, M. -L.,Ning, B.,Zhang, S. -R.,&Holt, J. M..(2007).Variations of topside ionospheric scale heights over Millstone Hill during the 30-day incoherent scatter radar experiment.ANNALES GEOPHYSICAE,25(9),2019-2027. |
| MLA | Liu, L.,et al."Variations of topside ionospheric scale heights over Millstone Hill during the 30-day incoherent scatter radar experiment".ANNALES GEOPHYSICAE 25.9(2007):2019-2027. |
入库方式： OAI收割
来源：地质与地球物理研究所
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