The effect of microscopic turbulence on magnetosphere‐ionosphere coupling

Robert L. Lysak, Charles W. Carlson

Research output: Contribution to journalArticlepeer-review

111 Scopus citations


The effect of turbulence on the coupling of the magnetosphere and ionosphere has been investigated by including an effective collision frequency in the electron equation of motion. When this term is combined with the continuity equation, the ion equation of motion and Maxwell’s equations, a dispersion relation for the kinetic Alfvén wave including effective collisions is found. The wave‐particle interaction leads to a strong damping of the wave. Inclusion of the effects of plasma sheet kinetics yields a scale size transverse to the magnetic field which corresponds to the size of visual auroral arcs.

Original languageEnglish (US)
Pages (from-to)269-272
Number of pages4
JournalGeophysical Research Letters
Issue number3
StatePublished - Mar 1981


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