Atmospheric solar tides and their electrodynamic effects. III - The polarization electric field

Details Atmospheric solar tides and their electrodynamic effects. III - The polarization electric field Atmospheric solar tides and their electrodynamic effects. III - The polarization electric field

Dec 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jatp...39.1369f&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 39, Nov.-Dec. 1977, p. 1369-1377.

Physics

4

Atmospheric Tides, E Region, Electric Fields, Electrodynamics, Ionospheric Drift, Polarization Characteristics, Solar Activity Effects, Dynamo Theory, F Region, Incoherent Scattering, Ionospheric Conductivity

Scientific paper

In this final part of our three-part study, the polarization electric field generated by E-region dynamo action is considered, and its consistency with presently available experimental measurements is established. Incoherent scatter measurements of ionospheric drifts are reviewed from the point of view of determining the origin of the polarization electric field in the quiet-time ionosphere, and are compared with the theoretical dynamo electric fields which drive previously discussed current systems. The analysis indicates that the polarization fields originating from E-region dynamo action are consistent with daytime F-region drift measurements, but are in poor agreement at night. This supports previous suggestions that electric fields generated by the plasmaspheric and F-region dynamos are short-circuited by the high E-region conductivity during the day, but contribute strongly to the night-time electric field.

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