Other
Scientific paper
Aug 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975p%26ss...23.1195k&link_type=abstract
(International Association of Geomagnetism and Aeronomy, Symposium on Magnetospheric Configuration, Kyoto, Japan, 1973.) Planeta
Other
1
Geomagnetic Pulsations, Midlatitude Atmosphere, Plasmapause, Amplitude Distribution Analysis, Earth Magnetosphere, Ground Stations, Kp Index, Wave Packets
Scientific paper
Based on the observational data obtained at eleven stations along a geomagnetic meridian (from 45 to 63 deg N latitude) the characteristics of Pc 3, 4 pulsations are investigated. It has been shown that Pc 3, 4 pulsations possess two amplitude maxima: one in the high latitudes and the other in middle latitudes. Consequently, the amplitude minimum between the two maxima is observed in subauroral latitudes. Examining the peculiarities of the polarization behavior of Pc 3, 4 pulsations along the meridian array, two different regions, where the pulsations are generated, are noticed. One is situated in the middle latitudes of about 55-60 deg, and the other in the auroral area of about 65-70 deg in geomagnetic latitude. The dependence of the Pc 3, 4 periods on the position of the plasmapause is clarified. The dynamic spectra of the simultaneous wave-packets of Pc-pulsations are investigated along the meridional profile.
Dmitrieva L. A.
Kopytenko Iu. A.
Raspopov Oleg M.
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