Monitoring nighttime medium-scale traveling ionospheric disturbances using the GPS network over North America
文献类型：期刊论文
| 作者 | Song Qian1,2; Ding Feng1; Wan Wei-Xing1; Liu Li-Bo1; Ning Bai-Qi1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2011-04-01 |
| 卷号 | 54期号:4页码:935-941 |
| 关键词 | GPS TEC Nighttime medium-scale traveling ionospheric disturbances |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2011.04.007 |
| 文献子类 | Article |
| 英文摘要 | Using the total electron content (TEC) data observed from a dense GPS network in North America from June 2007 to May 2008, we analyzed the propagation characteristics of the nighttime medium-scale traveling ionospheric disturbances (MSTIDs) over North America. The results show that, the nighttime MSTIDs occur frequently between the local time of 21 : 00LT (05 : 00UT) and 02 : 00LT (10 : 00UT), which can be characterized by the maximum amplitude of 0. 45 similar to 0. 6TECU and the average period of 20 similar to 40 minutes in the TEC perturbation series. The nighttime MSTIDs tend to propagate southwestward at the horizontal velocities of 100 similar to 200 m/s covering large area in the range of magnetic latitude (24 degrees N similar to 44 degrees N) and longitude (130 degrees W similar to 70 degrees W). The statistical results indicate that, the nighttime MSTIDs have a clear semiannual variation, with the maximum amplitudes around equinox and the smallest ones around solstice; the horizontal velocities in summer are about 20% larger than that in winter. Further studies have revealed that, the semiannual variation of nighttime MSTIDs is caused by the semiannual variation of background TEC, while the seasonal variation of the horizontal velocity is closely related with the seasonal variation of the thermospheric wind. |
| WOS关键词 | MIDLATITUDE SPREAD F ; ELECTRIC-FIELDS ; ELECTRODYNAMICS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000290065400007 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/74256]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Song Qian |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song Qian,Ding Feng,Wan Wei-Xing,et al. Monitoring nighttime medium-scale traveling ionospheric disturbances using the GPS network over North America[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2011,54(4):935-941. |
| APA | Song Qian,Ding Feng,Wan Wei-Xing,Liu Li-Bo,&Ning Bai-Qi.(2011).Monitoring nighttime medium-scale traveling ionospheric disturbances using the GPS network over North America.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,54(4),935-941. |
| MLA | Song Qian,et al."Monitoring nighttime medium-scale traveling ionospheric disturbances using the GPS network over North America".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 54.4(2011):935-941. |
入库方式： OAI收割
来源：地质与地球物理研究所
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