Computer Science
Scientific paper
Jul 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977p%26ss...25..607m&link_type=abstract
Planetary and Space Science, vol. 25, July 1977, p. 607-613.
Computer Science
2
Atmospheric Circulation, Atmospheric Composition, Atmospheric Heat Budget, Magnetic Storms, Thermosphere, Asymmetry, Atmospheric Models, Esro 4 Satellite, F 2 Region, Geomagnetic Latitude
Scientific paper
It is suggested that spherical asymmetries in heat-input distribution during magnetic storms could be important in moving the center of thermospheric circulation toward the equator. Circumstantial evidence from neutral-composition data obtained by two satellites during a series of strong geomagnetic substorms is shown to suggest a pronounced hemispherical asymmetry in magnetic-storm-related energy deposition and to support the circulation concept. Ground-based observations of the F2 peak density in both hemispheres are used to complement the composition data and to confirm the concept of hemispherical asymmetry. The composition data are analyzed quantitatively on the basis of a linear circulation model for the cases of a zero heat source in the Northern Hemisphere, factor-of-two differences between the heat sources in the Northern and Southern Hemispheres, and identical heat sources in both hemispheres. The results are found to be in qualitative agreement with the suggestion of pronounced asymmetry in thermospheric circulation.
Mayr Hans G.
Trinks Hauke
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