Physics
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....9210133m&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 92, Sept. 1, 1987, p. 10133-10139.
Physics
38
Dynamics Explorer 2 Satellite, Geomagnetism, Polar Regions, Thermosphere, Wind Measurement, Atmospheric Circulation, Neutral Sheets, Wind Velocity, Winter
Scientific paper
The effects of geomagnetic activity on the circulation of the high-latitude neutral thermosphere were studied for the periods of November 1981 through January 1982 and November 1982 through January 1983, using neutral wind measurements obtained by the Fabry-Perot interferometer and the wind and temperature spectrometer on the Dynamics Explorer 2. Results for the Northern Hemisphere show evidence of two-cell circulation of the thermosphere at high latitudes during both quiet and active geomagnetic periods at solar maximum; the dusk cell was always dominant. In the Southern Hemisphere, only a single circulation cell existed for both quiet and active periods associated with the dusk cell of ionospheric convection. In both hemispheres, the cell sizes decreased when geomagnetic activity was reduced.
Hernández Guzmán
Killeen Tim L.
McCormac F. G.
Ponthieu J.-J.
Spencer Nelson W.
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