Computer Science
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992p%26ss...40..595m&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 40, no. 5, May 1992, p. 595-606.
Computer Science
10
Electric Fields, F 2 Region, Geomagnetic Latitude, Longitude, Magnetic Storms, Wind Effects, Earth Magnetosphere, Magnetic Equator, Magnetic Field Configurations, Thermosphere
Scientific paper
The effects of thermospheric winds and electric fields on the ionospheric F2-layer are controlled by the geometry of the magnetic field, and so vary with latitude and longitude. A simple model of the daytime F2-layer is adopted and the effects at midlatitudes (25-65 deg geographic) of three processes that accompany geomagnetic storms: (1) thermospheric changes due to auroral heating; (2) equatorward winds that tend to cancel the quiet-day poleward winds; and (3) the penetration of magnetospheric electric fields are studied. At +/- 65 deg, the effects of heating and electric fields are strongest in the longitudes toward which the geomagnetic dipole is tilted, i.e., the North American and the South Indian Ocean sectors. Because of the proximity of the geomagnetic equator to the East Asian and South American sectors, the reverse is true at +/- 25 deg.
He X.-Q.
Mendillo Michael
Rishbeth Henry
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