The linear dependence of the intensity of geomagnetic variations in the polar regions on the magnitude of the north and south components of the IMF

Details The linear dependence of the intensity of geomagnetic variations in the polar regions on the magnitude of the north and south components of the IMF The linear dependence of the intensity of geomagnetic variations in the polar regions on the magnitude of the north and south components of the IMF

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ge%26ae..21..752p&link_type=abstract

Geomagnetizm i Aeronomiia, vol. 21, July-Aug. 1981, p. 752-754. In Russian.

Computer Science

2

Geomagnetism, Interplanetary Magnetic Fields, Magnetic Variations, Polar Regions, Solar Terrestrial Interactions, Statistical Correlation, Earth Magnetosphere, Linearity, Polar Caps, Regression Analysis, Solar Wind

Scientific paper

The linearity of the relation between geomagnetic variations at the polar caps and the magnitude and sign of the Bz component of the interplanetary magnetic field is investigated on the basis of hourly mean geomagnetic data obtained at Tule Observatory for four summer months during the years 1964-1970. A regression analysis was performed between the measured horizontal component of the vector of polar cap variations and IMF component data from the catalog of King (1979) to obtain the dependence of horizontal variations on the magnetic field for all hours of UT and various field intensities. The northern component of the IMF is thus found to influence the polar geomagnetic field in the summer season, with the dependence of the horizontal field component on IMF intensity linear at any value of the Bz component independent of its sign.

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