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  4. 中国科学院地球与行星物理重点实验室
Daytime Ionospheric Large-Scale Plasma Density Depletion Structures Detected at Low Latitudes Under Relatively Quiet Geomagnetic Conditions

文献类型：期刊论文

作者Sun, Wenjie1,2,3,4; Li, Guozhu1,2,3,4; Le, Huijun1,2,3,4; Chen, Yiding1,2,3,4; Hu, Lianhuan1,2,3; Yang, Sipeng1,2,3; Zhao, Xiukuan2,3,5; Xie, Haiyong1,2,3; Li, Yi1,2,3; Zhao, Biqiang1,2,3,4
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2022-02-01
卷号127期号:2页码:11
ISSN号2169-9380
关键词plasma depletion ionospheric disturbance TEC low latitude
DOI10.1029/2021JA030033
英文摘要The ionospheric electron density is expected to enhance after sunrise during geomagnetic quiet days. In this paper, we report an anomalous large-scale ionospheric TEC depletion structure occurring in morning hours over low latitudes in China under relatively quiet geomagnetic conditions. The depletion structure, which occurred over a wide longitude range of >35 degrees, developed toward higher latitudes at the speed of similar to 250 m/s. A statistical analysis using the data in 2018-2020 showed that such large-scale daytime TEC depletion mainly occurred in summer (mostly with Kp < 3), with large intensities at similar to 16-30 degrees N. The geomagnetic Delta H measurements at the stations near and away from the magnetic dip equator showed positive values, which rules out the possible contribution from a westward electric field. Observations from multiple ionosondes revealed a net downward plasma transport during the TEC depletion. An enhanced poleward neutral wind during the early morning hours, which may induce downward plasma transport, was surmised to play a leading role in driving the large-scale morning TEC depletion.
WOS关键词TOTAL ELECTRON-CONTENT ; EQUATORIAL IONOSPHERE ; MIDDLE ; DISTURBANCES ; MIDLATITUDE
资助项目National Natural Science Foundation of China[42020104002] ; National Natural Science Foundation of China[41727803] ; National Natural Science Foundation of China[42074190] ; National Natural Science Foundation of China[41904141] ; Project of Stable Support for Youth Team in Basic Research Field, CAS[YSBR-018] ; National Key Research and Development Program[2017YFE0131400] ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences[183311KYSB20200003] ; Chinese Meridian Project
WOS研究方向Astronomy & Astrophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000765721800046
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 ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; Chinese Meridian Project ; Chinese Meridian Project ; Chinese Meridian Project ; Chinese Meridian Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; Chinese Meridian Project ; Chinese Meridian Project ; Chinese Meridian Project ; Chinese Meridian Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; Chinese Meridian Project ; Chinese Meridian Project ; Chinese Meridian Project ; Chinese Meridian Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; Project of Stable Support for Youth Team in Basic Research Field, CAS ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; Solar-Terrestrial Environment Research Network (STERN) of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; International Partnership Program of Chinese Academy of Sciences ; Chinese Meridian Project ; Chinese Meridian Project ; Chinese Meridian Project ; Chinese Meridian Project
源URL[http://ir.iggcas.ac.cn/handle/132A11/105035]  
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Li, Guozhu
作者单位1.Chinese Acad Sci, Beijing Natl Observ Space Environm, Inst Geol & Geophys, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Mohe Observ Geophys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Wenjie,Li, Guozhu,Le, Huijun,et al. Daytime Ionospheric Large-Scale Plasma Density Depletion Structures Detected at Low Latitudes Under Relatively Quiet Geomagnetic Conditions[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2022,127(2):11.
APA Sun, Wenjie.,Li, Guozhu.,Le, Huijun.,Chen, Yiding.,Hu, Lianhuan.,...&Liu, Libo.(2022).Daytime Ionospheric Large-Scale Plasma Density Depletion Structures Detected at Low Latitudes Under Relatively Quiet Geomagnetic Conditions.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,127(2),11.
MLA Sun, Wenjie,et al."Daytime Ionospheric Large-Scale Plasma Density Depletion Structures Detected at Low Latitudes Under Relatively Quiet Geomagnetic Conditions".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 127.2(2022):11.

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来源：地质与地球物理研究所

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