Computer Science
Scientific paper
Oct 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ge%26ae..17..940s&link_type=abstract
Geomagnetizm i Aeronomiia, vol. 17, Sept.-Oct. 1977, p. 940-943. In Russian.
Computer Science
Annual Variations, Auroral Zones, E Region, Proton Precipitation, Geomagnetism, Lines Of Force, Magnetic Disturbances, Plasmapause, Seasons
Scientific paper
The paper describes a study of the precipitation of charged particles in different seasons of the year. Characteristics of the space-time distribution of the auroral E-layer in 1958 were compared for three groups of four months - winter, summer, and equinox - in conditions of quiet and disturbed geomagnetic field. The observed seasonal variations of high and low latitude boundaries of the region of auroral E occurrence reflect the corresponding fluctuations of the boundary of the closed lines of force and the positions of the plasmapause projections in the high ionosphere. During the transition from winter to summer conditions, the boundary of the closed lines of force descends in the night to lower latitudes, and the plasma through shifts to higher latitudes. These changes result in a significant reduction in the dimensions of the region of precipitation of auroral protons from the ring current in summer as opposed to winter.
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