A climatology of the F-layer equivalent winds derived from ionosonde measurements over two decades along the 120 degrees-150 degrees E sector
文献类型：期刊论文
| 作者 | Luan, X; Liu, L; Wan, W; Lei, J; Yu, T |
| 刊名 | ANNALES GEOPHYSICAE
 |
| 出版日期 | 2004 |
| 卷号 | 22期号:8页码:2785-2796 |
| 关键词 | meteorology and atmospheric dynamics thermospheric dynamics meridional wind electric field drift equivalent winds |
| ISSN号 | 0992-7689 |
| 文献子类 | Article |
| 英文摘要 | The vertical equivalent winds (VEWs) at the F-layer are analyzed along the 120degrees-150degrees E longitude sector with an emphasis on their latitudinal dependence. The VEWs are derived from the monthly median data of fourteen ionosonde stations over two decades. The results show that the VEWs have considerable dependences on the magnetic latitude with an approximate symmetry about the magnetic equator. They are mostly controlled by the electric field drifts in the magnetic equatorial region, and shift to be mostly contributed by neutral winds at mid-latitudes. The relative contribution of the two dynamic factors is regulated by the magnetic dip in addition to their own magnitudes. The VEWs generally have opposite directions and different magnitudes between lower and higher latitudes. At solar minimum, the magnitudes of VEWs are only between -20 and 20 m/s at lower latitudes, while at higher latitudes they tend to increase with latitudes, typically having magnitudes between 20-40 m/s. At solar maximum, the VEWs are reduced by about 10-20 m/s in magnitudes during some local times at higher latitudes. A tidal analysis reveals that the relative importance of major tidal components is also different between lower and higher latitudes. |
| WOS关键词 | THERMOSPHERIC NEUTRAL WINDS ; IONOSPHERIC DATA ; MILLSTONE HILL ; MERIDIONAL WINDS ; DRIFT MODEL ; SOLAR-CYCLE ; EQUATORIAL ; REGION ; RADAR ; IONIZATION |
| WOS研究方向 | Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000224483900013 |
| 出版者 | EUROPEAN GEOSCIENCES UNION |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79201]  |
| 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.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luan, X,Liu, L,Wan, W,et al. A climatology of the F-layer equivalent winds derived from ionosonde measurements over two decades along the 120 degrees-150 degrees E sector[J]. ANNALES GEOPHYSICAE,2004,22(8):2785-2796. |
| APA | Luan, X,Liu, L,Wan, W,Lei, J,&Yu, T.(2004).A climatology of the F-layer equivalent winds derived from ionosonde measurements over two decades along the 120 degrees-150 degrees E sector.ANNALES GEOPHYSICAE,22(8),2785-2796. |
| MLA | Luan, X,et al."A climatology of the F-layer equivalent winds derived from ionosonde measurements over two decades along the 120 degrees-150 degrees E sector".ANNALES GEOPHYSICAE 22.8(2004):2785-2796. |
入库方式： OAI收割
来源：地质与地球物理研究所
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