Global simulation of the time-dependent magnetosphere

Details Global simulation of the time-dependent magnetosphere Global simulation of the time-dependent magnetosphere

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978georl...5..609l&link_type=abstract

Geophysical Research Letters, vol. 5, July 1978, p. 609-612.

Physics

16

Atmospheric Models, Magnetohydrodynamic Turbulence, Magnetospheric Instability, Solar Wind, Atmospheric Turbulence, Geomagnetic Tail, Magnetic Field Configurations, Magnetosheath, Shock Wave Interaction, Solar Terrestrial Interactions, Time Dependence, Topology

Scientific paper

The paper presents preliminary results from time-dependent two-dimensional numerical modelling of the magnetohydrodynamic interaction of the solar wind with the magnetosphere. A southward solar wind-field produces a magnetospheric topology consistent with Dungey's (1961) model. The interaction appears to be fundamentally unsteady; the shock, magnetosheath, and magnetopause are highly turbulent. A 'substorm' is modelled as the passage of a rotational discontinuity over the magnetosphere; the onset of enhanced reconnection in the magnetospheric tail produces a closed magnetic island which convects downstream.

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