Dynamo currents, winds, and electric fields

After a brief presentation of Sq and L electric current systems deduced from geomagnetic data, electric conductivities and wind models in the dynamo region are discussed. It is then shown that the solar negative-mode thermal diurnal tide and the lunar semidiurnal gravitational tide having a phase shift with altitudes produce the best fit Sq and L current systems, respectively. Distributions of electrostatic fields are computed, and electromagnetic drift speeds in the ionospheric F region are also examined. These calculated values agree well with observed results.

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Copyright 1969 American Geophysical Union.
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Author Matsushita, Samadi
Publisher UCAR/NCAR - Library
Publication Date 1969-09-01T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2023-08-18T18:08:20.321131
Metadata Record Identifier edu.ucar.opensky::articles:1224
Metadata Language eng; USA
Suggested Citation Matsushita, Samadi. (1969). Dynamo currents, winds, and electric fields. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d7cj8cz6. Accessed 31 January 2025.

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