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DOI | 10.1029/2021GL097651 |
Ionospheric topside diffusive flux and the formation of summer nighttime ionospheric electron density enhancement over Millstone Hill | |
Yihui Cai; Xinan Yue; Wenbin Wang; Shun-Rong Zhang; Huixin Liu; Jiuhou Lei; Zhipeng Ren; Yiding Chen; Feng Ding; Dexin Ren | |
2022-02-10 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2022 |
英文摘要 | Ionospheric F-region electron density is anomalously higher in the evening than during the daytime on many occasions in the summer in geomagnetic mid-latitude regions. This unexpected ionospheric diurnal variation has been studied for several decades. The underlying processes have been suggested to be related to meridional winds, topside influx arising from sunset ionospheric collapse, and other factors. However, substantial controversies remain unresolved. Using a numerical model driven by the statistical topside O+ diffusive flux from the Millstone Hill incoherent scatter radar data, we provide new insight into the competing roles of topside diffusive flux, neutral winds, and electric fields in forming the evening density peak. Simulations indicate that while magnetic meridional winds, which turn equatorward before sunset, are essential to sustain the daytime ionization near dusk, the topside diffusive flux is critically important for the formation and timing of the summer evening density peak. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/346769 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Yihui Cai,Xinan Yue,Wenbin Wang,et al. Ionospheric topside diffusive flux and the formation of summer nighttime ionospheric electron density enhancement over Millstone Hill[J]. Geophysical Research Letters,2022. |
APA | Yihui Cai.,Xinan Yue.,Wenbin Wang.,Shun-Rong Zhang.,Huixin Liu.,...&Dexin Ren.(2022).Ionospheric topside diffusive flux and the formation of summer nighttime ionospheric electron density enhancement over Millstone Hill.Geophysical Research Letters. |
MLA | Yihui Cai,et al."Ionospheric topside diffusive flux and the formation of summer nighttime ionospheric electron density enhancement over Millstone Hill".Geophysical Research Letters (2022). |
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