DOI: 10.1002/2014GL060413
论文题名: Effect of interhemispheric field-aligned currents on Region-1 currents
作者: Lyatskaya S. ; Lyatsky W. ; Khazanov G.V.
刊名: Geophysical Research Letters
ISSN: 0094-10552
EISSN: 1944-10283
出版年: 2014
卷: 41, 期: 11 起始页码: 3731
结束页码: 3737
语种: 英语
英文关键词: field-aligned currents
; high-latitude ionosphere
; interhemispheric currents
; magnetosphere-ionosphere coupling
; Region 1 current
Scopus关键词: Ionosphere
; Positive ions
; Analytical and numerical solutions
; Auroral oval
; Field aligned currents
; High-latitude ionosphere
; Ionospheric conductivity
; Magnetosphere-ionosphere coupling
; Night-side polar cap
; Ionospheric measurement
; aurora
; electrical conductivity
; ionosphere
; latitude
; polar meteorology
; seasonal variation
英文摘要: An asymmetry in ionospheric conductivity between two hemispheres results in the formation of additional, interhemispheric field-aligned currents (FACs) flowing between conjugate ionospheres within two auroral zones. These interhemispheric currents are especially significant during summer-winter conditions when there is a significant asymmetry in ionospheric conductivity in two hemispheres. In such conditions, these currents may be comparable in magnitude with the Region 1 (R1) field-aligned currents. In this case, the R1 current is the sum of two FACs: one is going from/to the solar wind, and another is flowing between conjugate ionospheres. These interhemispheric currents can also cause the formation of auroras extended along the nightside polar cap boundary, which may be related to the so-called "double auroral oval." In this study, we present the results of analytical and numerical solutions for the interhemispheric currents and their effect on the Region 1 currents. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902039965&doi=10.1002%2f2014GL060413&partnerID=40&md5=37665e4faec448a5e11f4e8308c238f5
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7816
Appears in Collections: 气候减缓与适应
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作者单位: Howard Community College, Columbia, MD, United States
Recommended Citation:
Lyatskaya S.,Lyatsky W.,Khazanov G.V.. Effect of interhemispheric field-aligned currents on Region-1 currents[J]. Geophysical Research Letters,2014-01-01,41(11).