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A multipoint determination of the propagation velocity of a sudden commencement across the polar ionosphere

  • M.J. Engebretson
  • , D.L. Murr
  • , W.J. Hughes
  • , H. Luhr
  • , T. Moretto
  • , J.L. Posch
  • , A.T. Weatherwax
  • , T.J. Rosenberg
  • , C.G. Maclennan
  • , L.J. Lanzerotti
  • , F. Marcucci
  • , S. Dennis
  • , G. Burns
  • , J. Bitterly
  • , M. Bitterly

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    We use magnetic field and riometer data, from ground observatories in both the Arctic and Antarctic regions to characterize the high-latitude propagation of a sudden storm commencement (SC) that occurred at; 0901 UT February '21, 1994. (1) high time resolution magnetic field data. from both hemispheres indicate extremely rapid propagation of the initial part of the SC signal at high latitudes. An initial inflection point; was observed in the data front dawn sector stations in both polar caps nearly simultaneously (Delta t
    Original languageEnglish
    JournalJournal of Geophysical Research: Space Physics
    Volume104
    Issue numberA10
    Pages (from-to)22433-22451
    ISSN2169-9380
    Publication statusPublished - 1999

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