Penetration of auroral electric fields and currents into the equatorial ionosphere during a substorm

Details Penetration of auroral electric fields and currents into the equatorial ionosphere during a substorm Penetration of auroral electric fields and currents into the equatorial ionosphere during a substorm

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ge%26ae..29..127z&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 29, Jan. 1989, p. 127-130. In Russian.

Computer Science

Atmospheric Electricity, Equatorial Atmosphere, Ionospheric Currents, Polar Substorms, Atmospheric Models, Electric Fields, Electric Potential, Electrostatics, Magnetospheric Instability

Scientific paper

Global systems of electric fields and currents in the ionosphere during a substorm are calculated on the basis of models of field-aligned currents (FACs) and ionospheric conductivities. A comparison is made with experimental data and empirical models. It is shown that the contribution of high-latiutude sources to electric fields observed at the equator is significant. The magnitude and sign of the field at the equator are mainly determined by the relationship between the intensities of FACs at the polar and equatorial boudaries of the auroral oval.

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