气候变化领域集成服务门户(CCPortal): Simultaneous Observations of Geoelectric and Geomagnetic Fields Produced by Magnetospheric ULF Waves

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DOI	10.1029/2020GL089441
	Simultaneous Observations of Geoelectric and Geomagnetic Fields Produced by Magnetospheric ULF Waves
	Hartinger M.D.; Shi X.; Lucas G.M.; Murphy B.S.; Kelbert A.; Baker J.B.H.; Rigler E.J.; Bedrosian P.A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:18
英文摘要	Geomagnetic perturbations (BGEO) related to magnetospheric ultralow frequency (ULF) waves induce electric fields within the conductive Earth—geoelectric fields (EGEO)—that in turn drive geomagnetically induced currents. Though numerous past studies have examined ULF wave BGEO from a space weather perspective, few studies have linked ULF waves with EGEO. Using recently available magnetotelluric impedance and EGEO measurements in the contiguous United States, we explore the relationship between ULF waves and EGEO. We use satellite, ground-based radar, BGEO, and EGEO measurements in a case study of a plasmaspheric virtual resonance (PVR), demonstrating that the PVR EGEO has significant spatial variation in contrast to a relatively uniform BGEO, consistent with spatially varying Earth conductivity. We further show ULF wave EGEO measurements during two moderate storms of ∼1 V/km. We use both results to highlight the need for more research characterizing ULF wave EGEO. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Electric fields; Magnetosphere; Earth conductivity; Geomagnetic fields; Geomagnetically induced currents; Ground based radar; Plasmaspheric virtual resonances; Simultaneous observation; Spatial variations; Ultra low frequencies; Geomagnetism; electric field; frequency analysis; geoelectric field; geomagnetism; magnetosphere; radar altimetry; satellite altimetry; spatial variation; wave action; United States
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/169752
作者单位	Space Science Institute, Boulder, CO, United States; Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States; High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO, United States; Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States; U. S. Geological Survey, Golden, CO, United States
推荐引用方式 GB/T 7714	Hartinger M.D.,Shi X.,Lucas G.M.,et al. Simultaneous Observations of Geoelectric and Geomagnetic Fields Produced by Magnetospheric ULF Waves[J],2020,47(18).
APA	Hartinger M.D..,Shi X..,Lucas G.M..,Murphy B.S..,Kelbert A..,...&Bedrosian P.A..(2020).Simultaneous Observations of Geoelectric and Geomagnetic Fields Produced by Magnetospheric ULF Waves.Geophysical Research Letters,47(18).
MLA	Hartinger M.D.,et al."Simultaneous Observations of Geoelectric and Geomagnetic Fields Produced by Magnetospheric ULF Waves".Geophysical Research Letters 47.18(2020).