Mesoscale field-aligned irregularity structures (FAIs) of airglow associated with medium-scale traveling ionospheric disturbances (MSTIDs)
文献类型：期刊论文
| 作者 | Sun, Longchang; Xu, Jiyao; Wang, Wenbin; Yue, Xinan; Yuan, Wei; Ning, Baiqi; Zhang, Donghe; de Meneses, F. C. |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2015 |
| 卷号 | 120期号:11页码:9839-9858 |
| ISSN号 | 2169-9380 |
| 通讯作者 | Sun, LC (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China. |
| 英文摘要 | In this paper, we report the evolution (generation, amplification, and dissipation) of optically observed mesoscale field-aligned irregularity structures (FAIs) (similar to 150 km) associated with a medium-scale traveling ionospheric disturbance (MSTID) event. There have not been observations of mesoscale FAIs of airglow before. The mesoscale FAIs were generated in an airglow-depleted front of southwestward propagating MSTIDs that were simultaneously observed by an all-sky imager, a GPS monitor, and a digisonde around Xinglong (40.4 degrees N, 30.5 degrees magnetic latitude), China, on 17/18 February 2012. A normalized cross-correlation method has been used to obtain the velocities of mesoscale FAIs and MSTIDs. The mesoscale FAIs had an obvious northwestward relative velocity to main-body MSTIDs (about 87.0 m/s on average). The direction of this relative velocity was roughly parallel to the depleted fronts. Furthermore, the evolution of the mesoscale FAIs was mostly controlled by the intensity of the depleted fronts. Occurred in a highly elevated ionosphere that had a total electron content depletion associated with large negative airglow perturbations (-25%), the mesoscale FAIs grew rapidly when they experienced southeastward wind, which had a speed of about 100 m/s and were measured by a Fabry-Perot interferometer. A northeastward polarization electric field within a depleted airglow front can play a controlling role in the development of the mesoscale FAIs. The electric field can significantly elevate the ionosphere and move the mesoscale FAIs northwestward by the E x B drift. The processes for the generation and development of the polarization electric field and the mesoscale FAIs, however, need further study. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-04-26 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/5343]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Sun, Longchang,Xu, Jiyao,Wang, Wenbin,et al. Mesoscale field-aligned irregularity structures (FAIs) of airglow associated with medium-scale traveling ionospheric disturbances (MSTIDs)[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2015,120(11):9839-9858. |
| APA | Sun, Longchang.,Xu, Jiyao.,Wang, Wenbin.,Yue, Xinan.,Yuan, Wei.,...&de Meneses, F. C..(2015).Mesoscale field-aligned irregularity structures (FAIs) of airglow associated with medium-scale traveling ionospheric disturbances (MSTIDs).JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,120(11),9839-9858. |
| MLA | Sun, Longchang,et al."Mesoscale field-aligned irregularity structures (FAIs) of airglow associated with medium-scale traveling ionospheric disturbances (MSTIDs)".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 120.11(2015):9839-9858. |
入库方式： OAI收割
来源：国家空间科学中心
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