Magnetic local time variation and scaling of poleward auroral boundary dynamics

  title={Magnetic local time variation and scaling of poleward auroral boundary dynamics},
  author={Nicola Claire Longden and Gareth Chisham and Mervyn P. Freeman},
The balance of dayside and nightside reconnection processes within the Earth’s magnetosphere and its effect on the amount of open magnetic flux threading the ionosphere is well understood in terms of the expanding-contracting polar cap model. However, the nature and character of the consequential fluctuations in the polar cap boundary are poorly understood. By using the poleward auroral luminosity boundary (PALB), as measured by the FUV instrument of the IMAGE spacecraft, as a proxy for the… CONTINUE READING


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