Dynamics of geomagnetic field secular variations at the Antarctic continent

Yu. P. Sumaruk, T. P. Sumaruk


The changes of the geomagnetic field secular variations at the Antarctic magnetic observatories for 1956—2010 years were investigated. Comparison between the secular variations at the Antarctica continent and at the north polar cap and adjacent observatories in the middle latitudes of south hemisphere was performed.

   The conclusion was drawn that secular variations at the high latitudes of the Earth have three sources: changes of the position of the central magnetic dipole and also changes of the value of its magnetic momentum, changes of sources in tectonosphere and changes of geomadnetic activity. depending on the sign of general magnetic field of the Sun, and, correspondingly, on the sign of the vertical component of the interplanetary magnetic field.


secular variations; magnetic anomalies; geomagnetic activity; general magnetic field of the Sun


Akasofu S. I., Chapman S., 1975. Solar terrestrial physics. Moscow: Mir, 231p. (in Russian).

Ben'kova N. P., Kolomiytseva G. I., Cherevko T. N., 1974. Analitical model of the magnetic field and its secular variations for 400 years (1550—1950). Geomagnetizm i aeronomiya 14(5), 881—887 (in Russian).

Golovkov V. P., Kolomiytseva G. I., Konyashenko L. P., Semenova G. M., 1983. Catalog meanyear meanings of the geomagnetic field for world magnetic observatory net. Moscow, is. XVI, 342 p. (in Russian).

Zavoyskaya I. N., 1990. Force and kinematical part of activity of century geomagnetic variations. Geofizicheskiy zhurnal 12(1), 60—66 (in Russian).

Kalinin Yu. D., 1984. Secular geomagnetic variation. Novosibirsk: Nauka, 160 p. (in Russian).

Obrydko V. N., Golyshev S. A., Levitin A. E., 2004. Connection of the general magnetic field in the solar activity cycles to the structure of IMF, that have influenced on the geomagnetic activity. Geomagnetizm i aeronomiya 44(4), 449—452 (in Russian).

Sumaruk P. V., Levitin A. E., Fel'dshteyn Ya. I., Afonina R. G., Belov B. A., 1987. Variations of the magnetic field, field-aligned currents and electrical fields at the polar cap during Bz>0 component IMF. Geofizicheskiy zhurnal 9(1),11—20 (in Russian).

Sumaruk Yu. P., Sumaruk P. V., 2013. Special features of secular variations of geomagnetic field in the northern polar area of the Earth. Geofizicheskiy zhurnal 35(2), 137—145 (in Ukrainian).

Sumaruk Yu. P., Sumaruk P. V., Bakhmutov V. G., 2000. Variations of the magnetic field at Antarctic continent and interplanetary magnetic field. Byuleten' Ukrayins'koho antarktychnoho tsentru (is. 3), 176—187 (in Ukrainian).

Sumaruk P. V., Fel'dshteyn Ya. I., Belov B. A., 1992. Polar electrojet during period of the magnetic storm 23-24 march 1969. Geofizicheskiy zhurnal 14(3), 79—81 (in Russian).

Sumaruk P. V., Kharin E. P., 1978. Azimutal component of the interplanetary magnetic field. 1958—1964. Materials World Data Center. Moscow, 88 p. (in Russian).

Shevnin A. D., Levitin A. E., Gromova L. E., Dremukhina L. A., Kanara L. N., 2009. Solar cyclic variation on the magnetic elements of observatory «Moskwa». Geomagnetizm i aeronomiya 49(3), 315—320 (in Russian).

Yaremenko L. N., Mishchenko Yu.hP., Shenderovskaya O. Ya., 2000. Secular changes of geomagnetic field at the Antarctic Continent. Byuleten' Ukrayins'koho antarktychnoho tsentru (is. 3), 188—191 (in Russian).

Data catalogue. Kyoto, 2005. № 27. 183 р.

Dremukhina L., Gromova L., Levitin A., Shevnin A., Avdeeva E., 2008. Long-term changes of geomagnetic field on IZMIRAN observatory. Physica of auroral phenomena. Proc. XXXI annual seminar. Apatite. P. 57—60.

Mandea M., 2001. How well is the main field secular variations know? Contrib. Geophys. Geodes. 31(1), 233—243.

Maus S., Lühr H., 2005. Signature of the quiet time magnetospheric magnetic field and its electromag-netic induction in the rotating Earth. Geophys. J. Int. 162, 755—763.

Verbanac G., Lühr H., Korte M., Mandea M., 2007. Contributions of the external field to the observatory annual means and proposal for their corrections. Earth Planet. Space. 59, 251—257.


  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Creative Commons License
Geofizicheskiy Zhurnal is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Flag Counter