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Extreme Enhancements of Electron Temperature in Low Latitude Topside Ionosphere During the October 2016 Storm

文献类型：期刊论文

作者Zhang, Ruilong1,2,3; Liu, Libo1,2,3; Ma, Han1,2,3; Chen, Yiding1,3,4; Le, Huijun1,2,3; Yoshikawa, Akimasa5
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2022-03-01
卷号127期号:3页码:11
关键词ionospheric storm electron temperature vertical drift equatorial topisde
ISSN号2169-9380
DOI10.1029/2022JA030278
英文摘要We use the in-situ observations of DMSP and SWARM satellites to report the changes of the topside ionospheric electron temperature during the October 2016 storm. Electron temperature in the afternoon sector dramatically increases in low latitudes in the recovery phase of the storm. Furthermore, the temperature enhancements have an obvious dependence on longitude and are mainly centralized around 100 degrees-150 degrees E in different satellite observations. The temperature enhancements attain more than 2,000 K at 840 km and 1,500 K at 450 km around the magnetic equator. The decrease in the electron-ion collision cooling rate, resulting from the lessened topside electron density, could not fully explain the temperature enhancement. At the same time, the electron densities in crests of the equatorial ionization anomaly are suppressed drastically at 100 degrees-150 degrees E, which cause a less heat conduction effect from the equatorial topside ionosphere to low altitudes via magnetic field lines and heat the topside ionospheric electron temperature. Further analysis indicates that dayside westward disturbance dynamo electric field presents a significant longitude structure and is a primary driver for the topside ionospheric temperature enhancement during the storm.
WOS关键词UPPER-ATMOSPHERE ; CYCLE VARIATIONS ; F-REGION ; MIDDLE ; ION ; THERMOSPHERE ; JICAMARCA
资助项目National Natural Science Foundation of China[42030202] ; National Natural Science Foundation of China[42174204] ; National Natural Science Foundation of China[41904140] ; National Natural Science Foundation of China[41922029] ; National Key Research and Development Program[2018YFC1503504] ; Chinese Academy of Sciences
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000776515200046
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/105099]  
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Zhang, Ruilong
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Heilongjiang Mohe Observ Geophys, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Beijing Natl Observ Space Environm, Inst Geol & Geophys, Beijing, Peoples R China
5.Kyushu Univ, Dept Earth & Planetary Sci, Fukuoka, Japan
推荐引用方式
GB/T 7714		 Zhang, Ruilong,Liu, Libo,Ma, Han,et al. Extreme Enhancements of Electron Temperature in Low Latitude Topside Ionosphere During the October 2016 Storm[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2022,127(3):11.
APA Zhang, Ruilong,Liu, Libo,Ma, Han,Chen, Yiding,Le, Huijun,&Yoshikawa, Akimasa.(2022).Extreme Enhancements of Electron Temperature in Low Latitude Topside Ionosphere During the October 2016 Storm.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,127(3),11.
MLA Zhang, Ruilong,et al."Extreme Enhancements of Electron Temperature in Low Latitude Topside Ionosphere During the October 2016 Storm".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 127.3(2022):11.

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来源：地质与地球物理研究所

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