Physics
Scientific paper
Feb 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19..265t&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 19, Feb. 7, 1992, p. 265-268.
Physics
24
Dynamo Theory, Earth Magnetosphere, Solar Terrestrial Interactions, Solar Wind, Thermosphere, Electrodynamics, Energy Transfer, Field Aligned Currents, Neutral Atmospheres
Scientific paper
The significance of the neutral wind dynamo as a contributor to ionospheric energetics at high latitudes is addressed by determining separately the electrical energy flux from the magnetospheric dynamo and the maximum electrical energy flux available due to the neutral wind dynamo, neglecting the natural feedback processes between the two. The neutral wind dynamo is found to contribute significantly to the flux of energy exchanged between the magnetosphere and thermosphere, particularly in the central polar cap. In the region of the magnetospheric convection reversal, the amount of available energy flux from the neutral wind dynamo can exceed that provided by the magnetospheric dynamo making the neutrals a dominant contributor to local electrodynamics.
Thayer Jeffrey P.
Vickrey James F.
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