Modeling the behavior of ionosphere above Millstone Hill during the September 21-27, 1998 storm
文献类型：期刊论文
| 作者 | Lei, JH; Liu, LB; Wan, WX; Zhang, SR |
| 刊名 | JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
 |
| 出版日期 | 2004-08-01 |
| 卷号 | 66期号:12页码:1093-1102 |
| 关键词 | Ionospheric Storm Incoherent Scatter Radar Data Assimilation Modeling And Forecasting |
| ISSN号 | 1364-6826 |
| DOI | 10.1016/j.jastp.2004.04.004 |
| 文献子类 | Article |
| 英文摘要 | A theoretical ionospheric model is employed to investigate the ionospheric behavior as observed by the incoherent-scatter radar (ISR) at Millstone Hill during the September 21-27, 1998 storm. The observed NmF2 presented a significant negative phase on September 25, and a G condition (h(m)F(2) < 200 km) was also observed. The model results based on the standard input parameters (climatological model values) are in good agreement with the observed electron densities under quiet conditions, but there are large discrepancies during disturbed periods. The exospheric temperature T-ex, neutral winds, atomic oxygen density [O] and molecular nitrogen density [N-2], and solar flux are inferred from the ISR ion temperature profiles and from the electron density profiles. Our calculated results show that the maximum T-ex is higher than 1700 K, and an averaged decrease in [O] is a factor of 2.2 and an increase in [N-2] at 300 km is about 1.8 times for the disturbed day, September 25, relative to the quiet day level. Therefore, the large change of [N-2]/[O] ratio gives a good explanation for the negative phase at Millstone Hill during this storm. Furthermore, at the disturbed nighttime the observations show a strong NmF2 decrease, accompanied by a significant h(m)F(2) increase after the sudden storm commencement (SSC). Simulations are carried out based on the inferred T-ex. It is found that the uplift of F-2 layer during the period from sunset to post-midnight is mainly associated with the large equatorward winds, and a second rise in h(m)F(2) after midnight results from the depleted N-e in the bottom-side of F-2 layer due to the increased recombination, while the "midnight collapse" of h(m)F(2) is attributed to the large-scale traveling atmospheric disturbances. (C) 2004 Elsevier Ltd. All rights reserved. |
| WOS关键词 | REACTION-RATE COEFFICIENTS ; ELECTRON-DENSITY PROFILE ; F-REGION ; NIGHTTIME IONOSPHERE ; LATITUDE IONOSPHERE ; GEOMAGNETIC STORMS ; LOWER ATMOSPHERE ; CROSS-SECTIONS ; ATOMIC OXYGEN ; THERMOSPHERE |
| WOS研究方向 | Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000223009300009 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/64449]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Lei, JH |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 3.MIT, Haystack Observ, Westford, MA 01886 USA |
| 推荐引用方式 GB/T 7714 | Lei, JH,Liu, LB,Wan, WX,et al. Modeling the behavior of ionosphere above Millstone Hill during the September 21-27, 1998 storm[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2004,66(12):1093-1102. |
| APA | Lei, JH,Liu, LB,Wan, WX,&Zhang, SR.(2004).Modeling the behavior of ionosphere above Millstone Hill during the September 21-27, 1998 storm.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,66(12),1093-1102. |
| MLA | Lei, JH,et al."Modeling the behavior of ionosphere above Millstone Hill during the September 21-27, 1998 storm".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 66.12(2004):1093-1102. |
入库方式： OAI收割
来源：地质与地球物理研究所
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