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F. D. Wilder, S. Eriksson, H. Korth, J. B. H. Baker, M. R. Hairston, C. Heinselman and B. J. Anderson Field-aligned current reconfiguration and magnetospheric response to an impulse in the interplanetary magnetic field BY component Geophysical Research Letters 40

Article first published online: 6 JUN 2013 | DOI: 10.1002/grl.50505

Key Points

  • An impulse in IMF By drives fast flows in the high latitude ionosphere
  • The peak dawn-side FAC strength occurs 1.25 hours after the impulse
  • The FAC strength correlates well with solar wind MA and SYM-H

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