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The Characteristics of Summer Descending Sporadic E Layer Observed With the Ionosondes in the China Region

文献类型：期刊论文

作者Qiu, Lihui1; Zuo, Xiaomin4; Yu, Tao1; Sun, Yangyi1; Liu, Huixin3; Sun, Lingfeng2; Zhao, Biqiang2
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2021-03-01
卷号126期号:3页码:9
ISSN号2169-9380
关键词convergence node downward movement sporadic E layer wind shear
DOI10.1029/2020JA028729
英文摘要This work statistically analyzed the characteristics of the summer descending sporadic E layers (Es) recorded at four Chinese ionospheric sounding stations of Sanya (109.4 degrees E, 18.3 degrees N, and I: 24.1 degrees), Wuhan (114.4 degrees E, 30.5 degrees N, and I: 45.5 degrees), Beijing (116.2 degrees E, 40.3 degrees N, and I: 58.7 degrees), Mohe (122.5 degrees E, 52.0 degrees N, and I: 69.6 degrees), and simulated the vertical ion convergence derived from the Horizontal Wind Model (HWM14) for the period from June 1, 2014 to August 31, 2017. Both observations and simulations show that a daytime Es layer starting at similar to 120 km in the morning descends to similar to 100 km in the afternoon. In addition, the descending rate of the Es layer has obvious altitude and latitude dependence. The Es layer descends faster (similar to 2.1 km/h) at higher altitudes (above 110 km), and meanwhile, it descends relatively slowly (similar to 1.5 km/h) at low altitudes (below 110 km). The mean descending rate (similar to 1.5-1.8 km/h) of the Es layers gradually increases from Sanya to Mohe. It is undoubtedly that the wind shear convergence nodes controlled by the atmospheric tides can drive the Es layer to move downwards. However, the simulation results in this paper show that the wind shear convergence nodes and the Es layer traces do not overlap completely, especially in the vertical direction, which suggests that wind shear cannot fully explain the details of Es layer evolution. We should pay attention to the combined effect of wind shear and metallic ion density in future research, especially in the details of the evolution of Es layer in the vertical direction.
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA17010207] ; National Natural Science Foundation of China[41874185] ; National Natural Science Foundation of China[41674148]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000636288800035
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/101110]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Yu, Tao
作者单位1.China Univ Geosci, Inst Geophys & Geomat, Wuhan, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
3.Kyushu Univ, Dept Earth & Planetary Sci, Fukuoka, Japan
4.China Univ Geosci, Sch Math & Phys, Wuhan, Peoples R China
推荐引用方式
GB/T 7714		 Qiu, Lihui,Zuo, Xiaomin,Yu, Tao,et al. The Characteristics of Summer Descending Sporadic E Layer Observed With the Ionosondes in the China Region[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2021,126(3):9.
APA Qiu, Lihui.,Zuo, Xiaomin.,Yu, Tao.,Sun, Yangyi.,Liu, Huixin.,...&Zhao, Biqiang.(2021).The Characteristics of Summer Descending Sporadic E Layer Observed With the Ionosondes in the China Region.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,126(3),9.
MLA Qiu, Lihui,et al."The Characteristics of Summer Descending Sporadic E Layer Observed With the Ionosondes in the China Region".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 126.3(2021):9.

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来源：地质与地球物理研究所

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