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Auroral electrojets...
Auroral electrojets and 3D currents in the ionosphere-magnetosphere system
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- Feldstein, Y. I. (författare)
- IZMIRAN, Troitsk, Russia
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- Popov, V. A. (författare)
- IZMIRAN, Troitsk, Russia
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- Cumnock, Judy (författare)
- KTH,Rymd- och plasmafysik
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Prigancova, A. (författare)
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- Blomberg, Lars (författare)
- KTH,Rymd- och plasmafysik
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Kozyra, J. U. (författare)
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Tsurutani, B. T. (författare)
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- Gromova, L. I. (författare)
- IZMIRAN, Troitsk, Russia
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- Levitin, A. E. (författare)
- IZMIRAN, Troitsk, Russia
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(creator_code:org_t)
- Kola Science Centre, Russian Academy of Science, 2006
- 2006
- Engelska.
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Ingår i: “Physics of Auroral Phenomena”, Proc. XXIX Annual Seminar, Apatity. - : Kola Science Centre, Russian Academy of Science. ; , s. 25-30
- Relaterad länk:
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https://kth.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Publikations- och innehållstyp
- vet (ämneskategori)
- kon (ämneskategori)