Physics
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jgr....98.7775d&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 98, no. A5, p. 7775-7790.
Physics
27
Inertia, Ionospheric Currents, Magnetic Storms, Neutral Particles, Polar Regions, Thermosphere, Dynamics Explorer 2 Satellite, Earth Magnetosphere, Electric Fields, Flywheels, Interplanetary Magnetic Fields, Ionospheric Drift, Time Dependence
Scientific paper
Neutral flywheel effects are investigated in NCAR-TIGCM simulation of geomagnetic storms that occurred in November 23, 1982 and December 7-8, 1982. Theoretical calculations from the latter storm are compared with measurements of currents form instruments on the Dynamics Explorer 2 satellite. It is concluded that neutral flywheel effects can make a contribution to high latitude electrodynamics for a few hours after the main phase of a geomagnetic storm. The Hall currents that are driven by neutral winds during B(Z) northward conditions are generally in the opposite direction to those that occur during B(Z) southward conditions, when they are driven primarily by ion winds. The morphology of the field-aligned current system calculated by the NCAR-TIGCM during southward B(Z) conditions is in general agreement with observations.
Burns Alan G.
Deng Weibing
Killeen Tim L.
Roble Raymond G.
Slavin James Arthur
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