The superdense plasma sheet: Plasmaspheric origin, solar wind origin, or ionospheric origin?

  title={The superdense plasma sheet: Plasmaspheric origin, solar wind origin, or ionospheric origin?},
  author={J. Borovsky and M. Thomsen and D. McComas},
  journal={Journal of Geophysical Research},
A few times per month, the density of the plasma sheet is several times higher than its usual density. Such superdense plasma sheet intervals are observed both in the midtail region and at geosynchronous orbit. Typically at geosynchronous orbit, a superdense plasma sheet occurs on the first day of a geomagnetic storm and lasts about 12–18 hours. The occurrences of superdense plasma sheets are found to be related to a distinct pattern of Kp: Kp rising after it has been low for an extended period… Expand
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