Asymmetric Development of Auroral Surges in the Northern and Southern Hemispheres

doi:10.1029/2020GL088750

GSTDTAP > 气候变化

DOI	10.1029/2020GL088750
	Asymmetric Development of Auroral Surges in the Northern and Southern Hemispheres
	Uchida, H. A.1; Kataoka, R.1,2; Kadokura, A.1,2,3; Murase, K.1; Yukimatu, A. S.1,2; Miyoshi, Y.4; Shiokawa, K.4; Ebihara, Y.5; Hosokawa, K.6; Matsuoka, A.7; Kurita, S.5; Fujita, S.2,8; Shinohara, I 7
	2020-06-09
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2020
卷号	47 期号:13
文章类型	Article
语种	英语
国家	Japan
英文摘要	Simultaneous eastward and westward traveling surges were observed at Tjornes, Iceland, and Syowa station, Antarctica, respectively. Several remarkable differences were identified. (1) The position of the initial bright spot was shifted by 1.7 to 2.3 MLT between both hemispheres. (2) The surges differ in traveling speed between the eastward traveling surge (6.5 km s(-1)) and the westward traveling surge (1.3 km s(-1)). (3) The Arase satellite was located on a geomagnetic field line connecting both ground stations and observed a significant excess in westward component of the magnetic field, which is consistent with the large shifts of the initial bright spots in both hemispheres. (4) The background Hall current flows eastward (Northern Hemisphere) and westward (Southern Hemisphere). The observed north-south asymmetry of the traveling surges suggests that the ionosphere can play an essential role in controlling the fundamental spatiotemporal development of auroras in both hemispheres.
英文关键词	auroral breakup traveling surge interhemispheric asymmetry
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000551465400059
WOS关键词	CONJUGATE ; SUBSTORM ; DYNAMICS ; EXPANSION ; ONSET
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/276552
专题	气候变化
作者单位	1.Grad Univ Adv Studies, Dept Polar Sci, Tachikawa, Tokyo, Japan; 2.Res Org Informat & Syst, Natl Inst Polar Res, Tachikawa, Tokyo, Japan; 3.Res Org Informat & Syst, Joint Support Ctr Data Sci Res, Polar Environm Data Sci Ctr, Tachikawa, Tokyo, Japan; 4.Nagoya Univ, Inst Space Earth Environm Res, Nagoya, Aichi, Japan; 5.Kyoto Univ, Res Inst Sustainable Humanosphere, Uji, Japan; 6.Univ Electrocommun, Grad Sch Informat & Engn, Chofu, Tokyo, Japan; 7.Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa, Japan; 8.Meteorol Coll, Kashiwa, Chiba, Japan
推荐引用方式 GB/T 7714	Uchida, H. A.,Kataoka, R.,Kadokura, A.,et al. Asymmetric Development of Auroral Surges in the Northern and Southern Hemispheres[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(13).
APA	Uchida, H. A..,Kataoka, R..,Kadokura, A..,Murase, K..,Yukimatu, A. S..,...&Shinohara, I.(2020).Asymmetric Development of Auroral Surges in the Northern and Southern Hemispheres.GEOPHYSICAL RESEARCH LETTERS,47(13).
MLA	Uchida, H. A.,et al."Asymmetric Development of Auroral Surges in the Northern and Southern Hemispheres".GEOPHYSICAL RESEARCH LETTERS 47.13(2020).