DOI: 10.1002/2015GL063662
论文题名: The interhemispheric and F region dynamo currents revisited with the Swarm constellation
作者: Lühr H. ; Kervalishvili G. ; Michaelis I. ; Rauberg J. ; Ritter P. ; Park J. ; Merayo J.M.G. ; Brauer P.
刊名: Geophysical Research Letters
ISSN: 0094-8705
EISSN: 1944-8436
出版年: 2015
卷: 42, 期: 9 起始页码: 3069
结束页码: 3075
语种: 英语
英文关键词: equatorial ionosphere
; field-aligned currents
; ionospheric currents
; midlatitude ionosphere
Scopus关键词: Ionosphere
; Ionospheric measurement
; Equatorial ionosphere
; Field aligned currents
; Ionospheric current
; Longitudinal variations
; Magnetic field data
; Magnetic variation
; Mid-latitude ionosphere
; Satellite constellations
; F region
; current velocity
; F region
; latitude
; magnetic field
; temporal variation
英文摘要: Based on magnetic field data sampled by the Swarm satellite constellation it is possible for the first time to determine uniquely F region currents at low latitudes. Initial results are presented from the first 200days of formation flight (17 April to 5 November 2014). Detailed results have been obtained for interhemispheric field-aligned currents connecting the solar quiet day magnetic variation (Sq) current systems in the two hemispheres. We obtain prominent currents from the Southern (winter) Hemisphere to the Northern around noon. Weaker currents in opposite direction are observed during morning and evening hours. Furthermore, we could confirm the existence of vertical currents above the dip equator, downward around noon and upward around sunset. For both current systems we present and discuss longitudinal variations. Key Points Application of new approach for current determination is performed Characteristics of interhemispheric field-aligned currents is presented Characteristics of F region dynamo currents is presented ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930481764&doi=10.1002%2f2015GL063662&partnerID=40&md5=ee1ace5d7417c39b08a8a3afc832e55a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8321
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: German Research Centre for Geosciences, Potsdam, Germany
Recommended Citation:
Lühr H.,Kervalishvili G.,Michaelis I.,et al. The interhemispheric and F region dynamo currents revisited with the Swarm constellation[J]. Geophysical Research Letters,2015-01-01,42(9).