Electric fields and currents in the ionosphere generated by field-aligned currents observed by TRIAD

Details Electric fields and currents in the ionosphere generated by field-aligned currents observed by TRIAD Electric fields and currents in the ionosphere generated by field-aligned currents observed by TRIAD

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979p%26ss...27..223g&link_type=abstract

Planetary and Space Science, vol. 27, Mar. 1979, p. 223-231.

Computer Science

6

Atmospheric Electricity, Electric Fields, Field Aligned Currents, Ionospheric Currents, Satellite Observation, Atmospheric Models, Hall Effect, Ionospheric Conductivity, Magnetic Disturbances, Magnetospheric Instability

Scientific paper

On the basis of the experimental data on the ionospheric conductivities and field-aligned currents the electric fields and currents in the ionosphere generated by the field-aligned currents were computated for various magnetic activity conditions. The model of the ionospheric conductivities by Vanyan and Osipova (1975) was used taking into account the influence of the universal time seasons and magnetic activity. The field-aligned current patterns and their change with magnetic activity was set on the basis of the TRIAD data. It is shown that the calculated patterns of the ionospheric electric fields and currents are in agreement with the measured electric fields and the equivalent current systems of the magnetic disturbances in high latitudes. The conclusion is made that the magnetospheric field-aligned currents are the main sources of the presently known polar magnetic disturbances.

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