气候变化领域集成服务门户(CCPortal): Persistent EMIC Wave Activity Across the Nightside Inner Magnetosphere

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DOI	10.1029/2020GL087009
	Persistent EMIC Wave Activity Across the Nightside Inner Magnetosphere
	Blum L.W.; Remya B.; Denton M.H.; Schiller Q.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:6
英文摘要	Electromagnetic ion cyclotron (EMIC) waves can act as a loss process for both ring current ions and radiation belt electrons, and the spatial and temporal characteristics of these waves are important for quantifying their effects on energetic particles. Here we utilize observations from multiple spacecraft to constrain the azimuthal and radial dimensions as well as the duration of an EMIC wave event occurring on the nightside of the inner magnetosphere on 7 July 2013. These combined observations reveal waves limited to a narrow radial extent but persisting ~10+ hr and spanning ~12 hr in local time. The solar wind conditions, geomagnetic activity, and plasma environment are also examined to better understand the conditions under which persistent nightside EMIC waves can occur. Relativistic electron phase space density profiles during this event reveal local minima concurrent with the wave activity, consistent with EMIC-driven scattering and loss of radiation belt electrons. ©2020. American Geophysical Union. All Rights Reserved. This article has been contributed to by US Government employees and their work is in the public domain in the USA.
英文关键词	Geomagnetism; Phase space methods; Radiation effects; Energetic particles; Geomagnetic activities; Inner magnetosphere; Phase space densities; Plasma environments; Radiation belt electrons; Relativistic electron; Temporal characteristics; Radiation belts; azimuth; electromagnetic wave; electron; magnetosphere; observational method; persistence; solar wind; spacecraft; spatiotemporal analysis
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/170530
作者单位	NASA/Goddard Space Flight Center, Greenbelt, MD, United States; Indian Institute of Geomagnetism, Navi Mumbai, India; New Mexico Consortium, Los Alamos, NM, United States; Space Science Institute, Boulder, CO, United States
推荐引用方式 GB/T 7714	Blum L.W.,Remya B.,Denton M.H.,et al. Persistent EMIC Wave Activity Across the Nightside Inner Magnetosphere[J],2020,47(6).
APA	Blum L.W.,Remya B.,Denton M.H.,&Schiller Q..(2020).Persistent EMIC Wave Activity Across the Nightside Inner Magnetosphere.Geophysical Research Letters,47(6).
MLA	Blum L.W.,et al."Persistent EMIC Wave Activity Across the Nightside Inner Magnetosphere".Geophysical Research Letters 47.6(2020).