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Auroral electrojets and 3D currents in the ionosphere-magnetosphere system
IZMIRAN, Troitsk, Russia.
IZMIRAN, Troitsk, Russia.
KTH, School of Electrical Engineering (EES), Space and Plasma Physics.
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2006 (English)In: “Physics of Auroral Phenomena”, Proc. XXIX Annual Seminar, Apatity, Kola Science Centre, Russian Academy of Science , 2006, 25-30 p.Conference paper, Published paper (Other academic)
Abstract [en]

There are shortly described results of the analysis of variations in the location and intensity of the auroral electrojets during magnetic storms and substorms using a numerical method for estimating the equivalent ionospheric currents based on data from meridian chains of magnetic observatories. It is shown that the westward electrojet adjoins to the polar electrojet located at cusp latitudes in the dayside sector. The association of electrojets with the field-aligned currents (FACs), namely Region 1 FAC and Region 2 FAC is considered. During intense disturbances a Region 3 FAC (accompanied with diffuse electron precipitation from the plasma sheet boundary layer) with the downward current was identified. The analysis of observational data is summarized in terms of 2D time-latitude distribution of electrojets at ionospheric altitudes. The magnetic field sawtooth variations generated during the storm main and early recovery phases are also discussed. To follow 3D currents in the magnetosphereionosphere system a clarified view of interrelated 3D currents and magnetospheric plasma domains is presented.

Place, publisher, year, edition, pages
Kola Science Centre, Russian Academy of Science , 2006. 25-30 p.
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:kth:diva-91589OAI: oai:DiVA.org:kth-91589DiVA: diva2:510825
Conference
Physics of Auroral Phenomena, XXIX Annual Seminar, Apatity, 2006,
Note
QC 20120321Available from: 2012-03-21 Created: 2012-03-19 Last updated: 2012-03-21Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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