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Interaction Between a Southwestward Propagating MSTID and a Poleward Moving WSA-Like Plasma Patch on a Magnetically Quiet Night at Midlatitude China Region

文献类型：期刊论文

作者Sun, Longchang2; Xu, Jiyao1,2; Zhu, Yajun2; Yuan, Wei2; Chen, Zhiqing2; Hao, Yongqiang3; Hu, Lianhuan4; Zhang, Donghe3; Guo, Bing1,2; Zhao, Xiukuan4
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2020-10-01
卷号125期号:10页码:22
ISSN号2169-9380
DOI10.1029/2020JA028085
英文摘要In this paper, we first investigate the effects of a postevening Weddell Sea Anomaly (WSA)-like plasma patch on a southwestward propagating medium-scale traveling ionospheric disturbance (MSTID) over Xinglong, China (40.4 degrees N, 117.6 degrees E; Mlat. similar to 30.4 degrees N). We found that some of this kind of WSA-like plasma patches moved northward from the equatorial ionization anomaly (EIA) regions to midlatitudes, as they traveled westward into China. During 2012-2016, these plasma patches frequently occurred during the period of May-August with a monthly occurrence rate of over 20%, causing nighttime plasma density enhancements (NPDEs) in midlatitudes of China. Over 50% of these structures were accompanied by concurrent MSTID and Es. We propose that an intense polarization electric field (PEF) associated with an MSTID/Es from the more northern regions of EIA could frequently drive these plasma patches poleward. On the night of 27 June 2014 (Kp < 2(-)), either an MSTID and an intense Es layer (the maximum foEs >12 MHz) occurred at the onset of the poleward motion of a WSA-like plasma patch, lending credence to this possibility. The observed plasma patch was pushed poleward to interact with the observed MSTID, causing some poleward extending C-shaped airglow depletions/enhancements of the MSTID in a transition region where the ionosphere changed from a collapse region to an uplifted one. We attributed those poleward extending airglow depletions to the interaction between the MSTID and the plasma patch because of the secondary gradient drift instability and those of airglow enhancements to the redistribution of plasma. Plain Language Summary This study found that postevening Weddell Sea Anomaly (WSA)-like patchy plasma structures frequently occurred during May-August of 2012-2016 in the East Asian regions. Among these plasma patches, a small portion moved northward from the equatorial ionization anomaly (EIA) regions to midlatitudes, as they moved westward into China. On the magnetically quiet night of 27 June 2014 (Kp < 2(-)), such a plasma patch already moved westward and poleward to the midlatitude region of China, affecting the evolution/propagation of a southwestward propagating medium-scale traveling ionospheric disturbance (MSTID). This paper, therefore, investigates the interaction between a midlatitude MSTID and a poleward moving WSA-like plasma patch. We mainly investigate the possible physical mechanisms behind this kind of plasma patches and how they could affect the propagation/evolution of MSTIDs over midlatitudes of China.
WOS关键词TRAVELING IONOSPHERIC DISTURBANCES ; MIDNIGHT TEMPERATURE MAXIMUM ; F-REGION ; ELECTRON-CONTENT ; SPREAD F ; AIRGLOW OBSERVATIONS ; STATISTICAL-ANALYSIS ; DENSITY ENHANCEMENT ; FIELDS ; MORPHOLOGY
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010302] ; National Natural Science Foundation of China[41831073] ; National Natural Science Foundation of China[41804146] ; National Natural Science Foundation of China[41774160] ; Open Research Project of Large Research Infrastructures of CAS-"Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project" ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2020156]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000600990300021
出版者AMER GEOPHYSICAL UNION
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Project of Large Research Infrastructures of CAS-"Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project" ; Open Research Project of Large Research Infrastructures of CAS-"Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project" ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Project of Large Research Infrastructures of CAS-"Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project" ; Open Research Project of Large Research Infrastructures of CAS-"Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project" ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Project of Large Research Infrastructures of CAS-"Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project" ; Open Research Project of Large Research Infrastructures of CAS-"Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project" ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Open Research Project of Large Research Infrastructures of CAS-"Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project" ; Open Research Project of Large Research Infrastructures of CAS-"Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project" ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/99934]  
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Xu, Jiyao
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China
3.Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Longchang,Xu, Jiyao,Zhu, Yajun,et al. Interaction Between a Southwestward Propagating MSTID and a Poleward Moving WSA-Like Plasma Patch on a Magnetically Quiet Night at Midlatitude China Region[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2020,125(10):22.
APA Sun, Longchang.,Xu, Jiyao.,Zhu, Yajun.,Yuan, Wei.,Chen, Zhiqing.,...&Zhao, Xiukuan.(2020).Interaction Between a Southwestward Propagating MSTID and a Poleward Moving WSA-Like Plasma Patch on a Magnetically Quiet Night at Midlatitude China Region.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,125(10),22.
MLA Sun, Longchang,et al."Interaction Between a Southwestward Propagating MSTID and a Poleward Moving WSA-Like Plasma Patch on a Magnetically Quiet Night at Midlatitude China Region".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 125.10(2020):22.

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来源：地质与地球物理研究所

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