Statistics – Computation
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985p%26ss...33..415t&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 33, April 1985, p. 415-419.
Statistics
Computation
39
Antarctic Regions, Geomagnetism, Interplanetary Magnetic Fields, Magnetic Disturbances, Polar Caps, Solar Wind Velocity, Convection Currents, Electric Fields, Hall Effect, Ionospheric Currents, Magnetohydrodynamics
Scientific paper
The polar cap magnetic activity MAGPC-index characterizing the intensity of disturbances affected by the IMF vertical component was derived from the antarctic station Vostok data in accordance to method of Troshichev et al. (1979a). The paper examines the statistical relationship between the 15-min values of this index and interplanetary quantities such as IMF components, solar wind velocity, interplanetary electric field and others. The results of the computation show a good correlation of MAGPC indices with interplanetary quantities including the IMF southward component. The best correlation is obtained for the merging electric field. The conclusion is: the MAGPC index derived from the background magnetic data may be used for monitoring of the convection electric field in the polar cap.
Andrezen V. G.
Troshichev Oleg A.
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