Astrophysics and Space Science

, Volume 77, Issue 1, pp 159–165 | Cite as

Closure of field-aligned currents in the ionosphere

  • A. Hruška


The ionospheric currentsj closing the field-aligned currents (FACs) flow mostly along the auroral oval and connect dawn and dusk sides of the oval. The currentj has a significant component directed across the auroral oval in the immediate vicinity of the interface between the two regions of Iijima and Potemra (1976) only. The value ofj is larger poleward of the interface than equatorward of the interface.


Significant Component Auroral Oval Dusk Side Large Poleward 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© D. Reidel Publishing Company 1981

Authors and Affiliations

  • A. Hruška
    • 1
  1. 1.Herzberg Institute of AstrophysicsNational Research Council of CanadaOttawaCanada

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