The earth's magnetosphere as a self-excited oscillator

Details The earth's magnetosphere as a self-excited oscillator The earth's magnetosphere as a self-excited oscillator

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ge%26ae..24..345m&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 24, Mar.-Apr. 1984, p. 345, 346. In Russian.

Physics

Magnetic Storms, Magnetospheric Instability, Self Oscillation, Solar Terrestrial Interactions, Solar Wind, Energy Transfer, Positive Feedback, Self Excitation, Transfer Functions

Scientific paper

It is shown that kappa (the transfer function which depends on intramagnetospheric conditions) increases during magnetospheric substorms, i.e., that the solar wind-magnetosphere system resembles a self-excited oscillator. Values of kappa are evaluated on the basis of observational data. In addition, consideration is given to the growth of kappa during the active phase of a substorm as the result of positive feedback between the transport of solar-wind energy into the magnetosphere and the dissipation of this energy.

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