Physics
Scientific paper
Jun 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976georl...3..301p&link_type=abstract
Geophysical Research Letters, vol. 3, June 1976, p. 301-304.
Physics
1
Dynamic Response, Electron Density Profiles, Magnetic Equator, Plasmapause, Whistlers, Antarctic Regions, Diurnal Variations, Earth Magnetosphere, Magnetic Disturbances
Scientific paper
The dynamical behavior of the plasmapause is studied using whistlers recorded at Siple, Antarctica during June 17-22, 1973. The magnetic activity during this period remained fairly disturbed until June 21, causing the plasmapause to contract to less than 3 earth radii. Sudden quieting on June 22 caused the plasmasphere to develop complex outlying structures with the high density region extending out to about 6 earth radii. The plasmapause data show a repeated diurnal pattern of a relatively slow decrease in equatorial radius by 0.5-1 earth radii during the night and a more rapid increase by about the same amount near dusk when the plasmasphere bulge is encountered.
Park Chan-Gyung
Seely N. T.
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