DOI: 10.1002/2015GL065060
论文题名: Interplanetary shocks and the resulting geomagnetically induced currents at the equator
作者: Carter B.A. ; Yizengaw E. ; Pradipta R. ; Halford A.J. ; Norman R. ; Zhang K.
刊名: Geophysical Research Letters
ISSN: 0094-9205
EISSN: 1944-8936
出版年: 2015
卷: 42, 期: 16 起始页码: 6554
结束页码: 6559
语种: 英语
英文关键词: equatorial electrojet
; geomagnetically induced currents
; sudden magnetic impulses
Scopus关键词: Atmospheric electricity
; Balloons
; Electric drives
; Geomagnetism
; Induced currents
; Ionosphere
; Magnetism
; Magnetosphere
; Shock waves
; Equatorial electrojet
; Equatorial regions
; Geomagnetic storm
; Geomagnetically induced currents
; Interplanetary shocks
; Magnetic signatures
; sudden magnetic impulses
; Technological infrastructure
; Solar system
; electrojet
; geomagnetic field
; geomagnetism
; induced seismicity
; interplanetary dust
; ionosphere
; magnetosphere
; paradigm shift
; technological change
; weather
英文摘要: Geomagnetically induced currents (GICs) caused by interplanetary shocks represent a serious space weather threat to modern technological infrastructure. The arrival of interplanetary shocks drives magnetosphere and ionosphere current systems, which then induce electric currents at ground level. The impact of these currents at high latitudes has been extensively researched, but the magnetic equator has been largely overlooked. In this paper, we investigate the potential effects of interplanetary shocks on the equatorial region and demonstrate that their magnetic signature is amplified by the equatorial electrojet. This local amplification substantially increases the region's susceptibility to GICs. Importantly, this result applies to both geomagnetic storms and quiet periods and thus represents a paradigm shift in our understanding of adverse space weather impacts on technological infrastructure. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84941710906&doi=10.1002%2f2015GL065060&partnerID=40&md5=2e7d77155c2ec97171f3c489891e1602
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8821
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Institute for Scientific Research, Boston College, Boston, MA, United States
Recommended Citation:
Carter B.A.,Yizengaw E.,Pradipta R.,et al. Interplanetary shocks and the resulting geomagnetically induced currents at the equator[J]. Geophysical Research Letters,2015-01-01,42(16).