Ion Interactions in the Magnetospheric Boundary Layer

  1. Tom Chang,
  2. M. K. Hudson,
  3. J. R. Jasperse,
  4. R. G. Johnson,
  5. P. M. Kintner and
  6. M. Schulz
  1. B. Hultqvist,
  2. R. Lundin and
  3. K. Stasiewicz

Published Online: 21 MAR 2013

DOI: 10.1029/GM038p0127

Ion Acceleration in the Magnetosphere and Ionosphere

Ion Acceleration in the Magnetosphere and Ionosphere

How to Cite

Hultqvist, B., Lundin, R. and Stasiewicz, K. (1986) Ion Interactions in the Magnetospheric Boundary Layer, in Ion Acceleration in the Magnetosphere and Ionosphere (eds T. Chang, M. K. Hudson, J. R. Jasperse, R. G. Johnson, P. M. Kintner and M. Schulz), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM038p0127

Author Information

  1. Kiruna Geophysical Institute, P.O. Box 704, S-981 27, Kiruna, Sweden

Publication History

  1. Published Online: 21 MAR 2013
  2. Published Print: 1 JAN 1986

ISBN Information

Print ISBN: 9780875900636

Online ISBN: 9781118664216

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Keywords:

  • Magnetosphere—Congresses;
  • Ionosphere—Congresses;
  • Ion flow dynamics—Congresses;
  • Space plasmas—Congresses

Summary

New observational results obtained by means of PROGNOZ-7 in the dayside boundary layer of the Earth's magnetophere are described and their interpretations are discussed. The main results are as follows:

1) Magnetosheath plasma elements penetrate into the boundary layer where they act as generators of an electric field.

2) Different ion species may have strongly different flow vectors in the boundary layer.

3) Cold ionospheric ions are accelerated in the generator regions of the boundary layer perpendicularly to the magnetic field lines to the E×B/B2 velocity; i.e. all originally cold ions, independent of mass, obtain the same drift velocity. They also obtain the same thermal velocity.

4) The higher the local magnetospheric plasma density is in the boundary layer the less is the perpendicular velocity difference between the local plasma and the penetrating plasma.