Observations of the day-to-day variability of the Sq(H) variation and the ion redistribution in the dynamo region

Details Observations of the day-to-day variability of the Sq(H) variation and the ion redistribution in the dynamo region Observations of the day-to-day variability of the Sq(H) variation and the ion redistribution in the dynamo region

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988p%26ss...36.1165g&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 36, Nov. 1988, p. 1165-1179.

Computer Science

Sound

Diurnal Variations, Dynamo Theory, Geomagnetism, Ionospheric Sounding, Magnetometers, Earth Magnetosphere, Ionospheric Currents, Ionospheric Ion Density, Perturbation Theory

Scientific paper

The parallel analysis of the H-component ground-based magnetometer data, registered on quiet days, and the sporadic E vertical ionospheric sounding data for the period 1978-1982, is carried out. The changes in the sporadic E behavior as well as the Sq current system variability, are both assumed to originate from the perturbation of the existing tidal wind pattern in the dynamo region. A coincidence was found between the phase and amplitude day-to-day changes of the Sq(H) variation, and changes in the diurnal distribution of the sporadic E virtual height and blanketing frequency. It was also found that the presence of the extremely intense sporadic E layers coincides with the appearance of the small size H-component disturbances. These disturbances might be induced by the current flow in the layer.

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