Discovery of 1Hz Range Modulation of Isolated Proton Aurora at Subauroral Latitudes

doi:10.1002/2017GL076486

GSTDTAP > 气候变化

DOI	10.1002/2017GL076486
	Discovery of 1Hz Range Modulation of Isolated Proton Aurora at Subauroral Latitudes
	Ozaki, M.1; Shiokawa, K.2; Miyoshi, Y.2; Kataoka, R.3,4; Connors, M.5; Inoue, T.1; Yagitani, S.1; Ebihara, Y.6; Jun, C. -W.7; Nomura, R.8; Sakaguchi, K.9; Otsuka, Y.2; Uchida, H. A.4; Schofield, I.5; Danskin, D. W.10
	2018-02-16
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2018
卷号	45 期号:3 页码:1209-1217
文章类型	Article
语种	英语
国家	Japan; Canada; USA
英文摘要	Isolated proton aurora (IPA) is a manifestation of the wave-particle interaction visible at subauroral latitudes, with activity on many timescales. We herein present the first observational evidence of rapid luminous modulation of IPA correlated with simultaneously observed Pc1 waves observed on the ground, which are equivalent to the electromagnetic ion cyclotron (EMIC) waves in the magnetosphere. The fastest luminous modulation of IPA was observed in the 1Hz frequency range, which was twice the frequency of the related Pc1 waves. The time lag between variations of Pc1 wave power and the IPA luminosity suggests that the source regions of IPA are distributed near the magnetic equator, suggesting an EMIC wave-energetic (a few tens of keV) proton or relativistic (MeV or sub-MeV) electron interaction. The generation mechanism of this 1Hz luminous modulation remains an open issue, but this study supports the importance of nonlinear pitch angle scattering via wave-particle interactions.
英文关键词	isolated proton aurora Pc1 geomagnetic pulsations wave-particle interaction
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000426161800002
WOS关键词	ION-CYCLOTRON WAVES ; RELATIVISTIC ELECTRON-PRECIPITATION ; EMIC-TRIGGERED EMISSIONS ; DAWN-DUSK ASYMMETRY ; VAN ALLEN PROBES ; GEOMAGNETIC-PULSATIONS ; MAGNETOSPHERE ; MODEL ; SCATTERING ; FREQUENCY
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/27385
专题	气候变化
作者单位	1.Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa, Japan; 2.Nagoya Univ, Inst Space Earth Environm Res, Nagoya, Aichi, Japan; 3.Natl Inst Polar Res, Tachikawa, Tokyo, Japan; 4.Grad Univ Adv Studies SOKENDAI, Dept Polar Sci, Tachikawa, Tokyo, Japan; 5.Athabasca Univ, Ctr Sci, Athabasca, AB, Canada; 6.Kyoto Univ, Res Inst Sustainable Humanosphere, Uji, Kyoto, Japan; 7.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA; 8.Japan Aerosp Explorat Agcy, Tsukuba, Ibaraki, Japan; 9.Natl Inst Informat & Commun Technol, Koganei, Tokyo, Japan; 10.Nat Resources Canada, Ottawa, ON, Canada
推荐引用方式 GB/T 7714	Ozaki, M.,Shiokawa, K.,Miyoshi, Y.,et al. Discovery of 1Hz Range Modulation of Isolated Proton Aurora at Subauroral Latitudes[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(3):1209-1217.
APA	Ozaki, M..,Shiokawa, K..,Miyoshi, Y..,Kataoka, R..,Connors, M..,...&Danskin, D. W..(2018).Discovery of 1Hz Range Modulation of Isolated Proton Aurora at Subauroral Latitudes.GEOPHYSICAL RESEARCH LETTERS,45(3),1209-1217.
MLA	Ozaki, M.,et al."Discovery of 1Hz Range Modulation of Isolated Proton Aurora at Subauroral Latitudes".GEOPHYSICAL RESEARCH LETTERS 45.3(2018):1209-1217.