Midlatitude Plasma Bubbles Over China and Adjacent Areas During a Magnetic Storm on 8 September 2017

	Midlatitude Plasma Bubbles Over China and Adjacent Areas During a Magnetic Storm on 8 September 2017
	Ercha Aa; Wengeng Huang; Siqing Liu; Aaron Ridley; Shasha Zou; Liqin Shi; Yanhong Chen; Hua Shen; Tianjiao Yuan; Jianyong Li; Tan Wang; Aa, E (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Beijing, Peoples R China.; Aa, E (reprint author), Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI 48109 USA.
刊名	space weather-the international journal of research and applications
	2018
卷号	16 期号:3 页码:321-331
关键词	Plasma Bubbles Ppef Geomagnetic Storm Midlatitude Ionosphere Tid
ISSN号	1542-7390
英文摘要	This paper presents observations of postsunset super plasma bubbles over China and adjacent areas during the second main phase of a storm on 8 September 2017. The signatures of the plasma bubbles can be seen or deduced from (1) deep field-aligned total electron content depletions embedded in regional ionospheric maps derived from dense Global Navigation Satellite System networks, (2) significant equatorial and midlatitudinal plasma bite-outs in electron density measurements on board Swarm satellites, and (3) enhancements of ionosonde virtual height and scintillation in local evening associated with strong southward interplanetary magnetic field. The bubbles/depletions covered a broad area mainly within 20°-45°N and 80°-110°E with bifurcated structures and persisted for nearly 5 hr (∼13-18 UT). One prominent feature is that the bubbles extended remarkably along the magnetic field lines in the form of depleted flux tubes, reaching up to midlatitude of around 50°N (magnetic latitude: 45.5°N) that maps to an altitude of 6,600 km over the magnetic equator. The maximum upward drift speed of the bubbles over the magnetic equator was about 700 m/s and gradually decreased with altitude and time. The possible triggering mechanism of the plasma bubbles was estimated to be storm time eastward prompt penetration electric field, while the traveling ionospheric disturbance could play a role in facilitating the latitudinal extension of the depletions.
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/6232]
专题	国家空间科学中心_空间环境部
通讯作者	Aa, E (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Beijing, Peoples R China.; Aa, E (reprint author), Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI 48109 USA.
推荐引用方式 GB/T 7714	Ercha Aa;Wengeng Huang;Siqing Liu;Aaron Ridley;Shasha Zou;Liqin Shi;Yanhong Chen;Hua Shen;Tianjiao Yuan;Jianyong Li;Tan Wang,Aa, E ,Aa, E . Midlatitude Plasma Bubbles Over China and Adjacent Areas During a Magnetic Storm on 8 September 2017[J]. space weather-the international journal of research and applications,2018,16(3):321-331.
APA	Ercha Aa;Wengeng Huang;Siqing Liu;Aaron Ridley;Shasha Zou;Liqin Shi;Yanhong Chen;Hua Shen;Tianjiao Yuan;Jianyong Li;Tan Wang,Aa, E ,&Aa, E .(2018).Midlatitude Plasma Bubbles Over China and Adjacent Areas During a Magnetic Storm on 8 September 2017.space weather-the international journal of research and applications,16(3),321-331.
MLA	Ercha Aa;Wengeng Huang;Siqing Liu;Aaron Ridley;Shasha Zou;Liqin Shi;Yanhong Chen;Hua Shen;Tianjiao Yuan;Jianyong Li;Tan Wang,et al."Midlatitude Plasma Bubbles Over China and Adjacent Areas During a Magnetic Storm on 8 September 2017".space weather-the international journal of research and applications 16.3(2018):321-331.