气候变化领域集成服务门户(CCPortal): A Multi-Instrument Approach to Determining the Source-Region Extent of EEP-Driving EMIC Waves

CCPortal

DOI	10.1029/2019GL086599
	A Multi-Instrument Approach to Determining the Source-Region Extent of EEP-Driving EMIC Waves
	Hendry A.T.; Santolik O.; Miyoshi Y.; Matsuoka A.; Rodger C.J.; Clilverd M.A.; Kletzing C.A.; Shoji M.; Shinohara I.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:7
英文摘要	Recent years have seen debate regarding the ability of electromagnetic ion cyclotron (EMIC) waves to drive EEP (energetic electron precipitation) into the Earth's atmosphere. Questions still remain regarding the energies and rates at which these waves are able to interact with electrons. Many studies have attempted to characterize these interactions using simulations; however, these are limited by a lack of precise information regarding the spatial scale size of EMIC activity regions. In this study we examine a fortuitous simultaneous observation of EMIC wave activity by the RBSP-B and Arase satellites in conjunction with ground-based observations of EEP by a subionospheric VLF network. We describe a simple method for determining the longitudinal extent of the EMIC source region based on these observations, calculating a width of 0.75 hr MLT and a drift rate of 0.67 MLT/hr. We describe how this may be applied to other similar EMIC wave events. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Magnetosphere; Energetic electron precipitation; Ground-based observations; Ion cyclotrons; SIMPLE method; Simultaneous observation; Source region; Spatial scale; Wave activity; Transport properties; ground-based measurement; instrumentation; observational method; satellite data; simulation
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/170472
作者单位	Department of Space Physics, Institute of Atmospheric Physics, Czech Academy of Sciences, Prague, Czech Republic; Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic; Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan; Department of Physics, University of Otago, Dunedin, New Zealand; British Antarctic Survey (NERC), Cambridge, United Kingdom; Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States
推荐引用方式 GB/T 7714	Hendry A.T.,Santolik O.,Miyoshi Y.,et al. A Multi-Instrument Approach to Determining the Source-Region Extent of EEP-Driving EMIC Waves[J],2020,47(7).
APA	Hendry A.T..,Santolik O..,Miyoshi Y..,Matsuoka A..,Rodger C.J..,...&Shinohara I..(2020).A Multi-Instrument Approach to Determining the Source-Region Extent of EEP-Driving EMIC Waves.Geophysical Research Letters,47(7).
MLA	Hendry A.T.,et al."A Multi-Instrument Approach to Determining the Source-Region Extent of EEP-Driving EMIC Waves".Geophysical Research Letters 47.7(2020).