GPS observations of TID events generated by the moving solar terminator
文献类型:期刊论文
作者 | Wang Min1,2,3,4; Ding Feng1; Wan Wei-Xing1; Ning Bai-Qi1; Chen Yi-Ding1,3 |
刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
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出版日期 | 2009-05-01 |
卷号 | 52期号:5页码:1146-1155 |
关键词 | Solar terminator (ST) Medium scale traveling ionospheric disturbances (MSTID) Global positioning system Maximum entropy method |
通讯作者 | Wang, M (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China. |
英文摘要 | GPS-TEC data from the International GNSS Services (IGS) were used in this paper to analyze the medium scale traveling ionospheric disturbances (MSTIDs) which are generated by the moving solar terminator (ST) during the quiet days in 2005. We collected the most comprehensive and dense GPS network's data from North-America region and introduce here a strategy that combines polynomial fitting and multi-channel maximum entropy spectral analysis to obtain TID parameters. The results of our study are summarized as follows: (1) MSTIDs stimulated by the moving ST (ST-MSTIDs) are detected at mid-latitudes after the passage of the solar terminator with the life time of 2 similar to 3 h and the variation amplitude of 0.2 similar to 0.8 TECU. Spectral analysis indicated that the horizontal wavelength, average period, horizontal phase velocity of the MSTIDs are around 300 +/- 150 km,150 +/- 80 m/s, and 25 +/- 15 min, respectively. In addition, ST-MSTIDs have wavefronts elongated in the moving ST direction and almost parallel to ST. (2) The statistical results demonstrate that the dusk MSTIDs stimulated by ST is more obvious than the dawn MSTIDs in summer days. On the contrary, the more-pronounced dawn MSTIDs occur in winter days. Further analysis indicates that the seasonal variations of ST-MSTIDs occurrence frequency are most probably related to the seasonal differences of the variations of EUV flux in the ionosphere region and recombination process during sunrise and sunset period at mid-latitudes. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Geochemistry & Geophysics |
研究领域[WOS] | Geochemistry & Geophysics |
关键词[WOS] | ATMOSPHERIC GRAVITY-WAVES ; IONOSPHERE ; REGION |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000266542700003 |
源URL | [http://ir.wipm.ac.cn/handle/112942/2227] ![]() |
专题 | 武汉物理与数学研究所_2011年以前论文发表(包括2011年) |
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 100049, Peoples R China 4.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100080, Peoples R China |
推荐引用方式 GB/T 7714 | Wang Min,Ding Feng,Wan Wei-Xing,et al. GPS observations of TID events generated by the moving solar terminator[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2009,52(5):1146-1155. |
APA | Wang Min,Ding Feng,Wan Wei-Xing,Ning Bai-Qi,&Chen Yi-Ding.(2009).GPS observations of TID events generated by the moving solar terminator.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,52(5),1146-1155. |
MLA | Wang Min,et al."GPS observations of TID events generated by the moving solar terminator".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 52.5(2009):1146-1155. |
入库方式: OAI收割
来源:武汉物理与数学研究所
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