Characteristics of the ionospheric total electron content of the equatorial ionization anomaly in the Asian-Australian region during 1996-2004
文献类型：期刊论文
| 作者 | Zhao, Biqiang1; Wan, Weixing1; Liu, Libo1; Ren, Zhipeng1,2,3 |
| 刊名 | ANNALES GEOPHYSICAE
 |
| 出版日期 | 2009 |
| 卷号 | 27期号:10页码:3861-3873 |
| 关键词 | Geomagnetism and paleomagnetism Spatial variations all harmonics and anomalies Ionosphere Equatorial ionosphere Magnetospheric physics Electric fields |
| ISSN号 | 0992-7689 |
| 文献子类 | Article |
| 英文摘要 | Ionospheric total electron content (TEC) of the equatorial ionization anomaly (EIA) is studied by analyzing dual-frequency signals of the Global Position System (GPS) acquired from a network of receivers around the Asian-Australian region during 1996-2004. The latitude, occurrence time, strength of the most developed EIA crest, and crest-to-trough ratio (CTR) for both the noon and post-sunset sector obtained from a daily TEC contour map have been used to study the solar cycle variations of EIA in the Asian-Australian region. The results reveal that semiannual and seasonal variations were the dominant factor that controls the morphology of the EIA structure which can be identified in the past studies (e. g. Wu et al., 2008). It is also found that the latitude and local time position of the anomaly crest show a hemispheric asymmetry because (a) The northern crest of EIA is expanded during the equinox indicating a weak semiannual variation while the southern crest is inhibited during June -August presenting a strong seasonal variation, and (b) The local time of the northern crest appears similar to 1.3 h earlier than that of the southern crest in June while showing no difference at December. Solar activity dependence is more evident in the EIA crest region than in the EIA trough region and least in the post-sunset sector at equinox. A seasonal linear relationship is derived between the post-sunset CTR and solar flux, which should be caused by the solar-dependant equatorial E x B vertical drift. |
| WOS关键词 | GLOBAL POSITIONING SYSTEM ; SOUTH EAST-ASIA ; F-REGION ; LOW LATITUDES ; SEMIANNUAL VARIATIONS ; PLASMA DRIFTS ; SOLAR MAXIMUM ; MINIMUM ; ELECTRODYNAMICS ; DEPENDENCE |
| WOS研究方向 | Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000271356500014 |
| 出版者 | COPERNICUS PUBLICATIONS |
| 资助机构 | National Natural Science Foundation of China(40804041) ; National Natural Science Foundation of China(40804041) ; National Important Basic Research Project(2006CB806306) ; National Important Basic Research Project(2006CB806306) ; National Natural Science Foundation of China(40804041) ; National Natural Science Foundation of China(40804041) ; National Important Basic Research Project(2006CB806306) ; National Important Basic Research Project(2006CB806306) ; National Natural Science Foundation of China(40804041) ; National Natural Science Foundation of China(40804041) ; National Important Basic Research Project(2006CB806306) ; National Important Basic Research Project(2006CB806306) ; National Natural Science Foundation of China(40804041) ; National Natural Science Foundation of China(40804041) ; National Important Basic Research Project(2006CB806306) ; National Important Basic Research Project(2006CB806306) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/71918]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhao, Biqiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China 2.CAS, Wuhan Inst Phys & Math, Wuhan, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Biqiang,Wan, Weixing,Liu, Libo,et al. Characteristics of the ionospheric total electron content of the equatorial ionization anomaly in the Asian-Australian region during 1996-2004[J]. ANNALES GEOPHYSICAE,2009,27(10):3861-3873. |
| APA | Zhao, Biqiang,Wan, Weixing,Liu, Libo,&Ren, Zhipeng.(2009).Characteristics of the ionospheric total electron content of the equatorial ionization anomaly in the Asian-Australian region during 1996-2004.ANNALES GEOPHYSICAE,27(10),3861-3873. |
| MLA | Zhao, Biqiang,et al."Characteristics of the ionospheric total electron content of the equatorial ionization anomaly in the Asian-Australian region during 1996-2004".ANNALES GEOPHYSICAE 27.10(2009):3861-3873. |
入库方式： OAI收割
来源：地质与地球物理研究所
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