气候变化领域集成服务门户(CCPortal): Multi-Instrument Observations of Ion-Neutral Coupling in the Dayside Cusp

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DOI	10.1029/2019GL085590
	Multi-Instrument Observations of Ion-Neutral Coupling in the Dayside Cusp
	Billett D.D.; Hosokawa K.; Grocott A.; Wild J.A.; Aruliah A.L.; Ogawa Y.; Taguchi S.; Lester M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:4
英文摘要	Using data from the Scanning Doppler Imager, the Super Dual Auroral Radar Network, the EISCAT Svalbard Radar, and an auroral all-sky imager, we examine an instance of F region neutral winds which have been influenced by the presence of poleward moving auroral forms near the dayside cusp region. We observe a reduction in the time taken for the ion drag force to reorientate the neutrals into the direction of the convective plasma (on the order of minutes), compared to before the auroral activity began. Additionally, because the ionosphere near the cusp is influenced much more readily by changes in the solar wind via dayside reconnection, we observe the neutrals responding to an interplanetary magnetic field change within minutes of it occurring. This has implications on the rate that energy is deposited into the ionosphere via Joule heating, which we show to become dampened by the neutral winds. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Drag; F region; Ionosphere; Ionospheric measurement; Radar; Auroral activities; Eiscat svalbard radars; Interplanetary magnetic fields; Ion drag; Ion-neutral coupling; Neutral winds; Super dual auroral radar network; SuperDARN; Ions; drag; F region; heating; instrumentation; ionosphere; magnetic field; observational method; plasma; solar wind; Arctic; Svalbard; Svalbard and Jan Mayen
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170652
作者单位	Physics Department, Lancaster University, Lancaster, United Kingdom; Now at the University of Saskatchewan, Institute of Space and Atmospheric Studies, Saskatoon, SK, Canada; Department of Communication Engineering and Informatics, University of Electro-Communications, Chofu, Japan; Department of Physics and Astronomy, University College London, London, United Kingdom; National Institute of Polar Research, Tachikawa, Japan; Graduate School of Science, Kyoto University, Kyoto, Japan; Department of Physics and Astronomy, University of Leicester, Leicester, United Kingdom
推荐引用方式 GB/T 7714	Billett D.D.,Hosokawa K.,Grocott A.,et al. Multi-Instrument Observations of Ion-Neutral Coupling in the Dayside Cusp[J],2020,47(4).
APA	Billett D.D..,Hosokawa K..,Grocott A..,Wild J.A..,Aruliah A.L..,...&Lester M..(2020).Multi-Instrument Observations of Ion-Neutral Coupling in the Dayside Cusp.Geophysical Research Letters,47(4).
MLA	Billett D.D.,et al."Multi-Instrument Observations of Ion-Neutral Coupling in the Dayside Cusp".Geophysical Research Letters 47.4(2020).