Computer Science
Scientific paper
Apr 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009eguga..1111569l&link_type=abstract
"EGU General Assembly 2009, held 19-24 April, 2009 in Vienna, Austria http://meetings.copernicus.org/egu2009, p.11569"
Computer Science
Scientific paper
The daily-, monthly- and annual-average geomagnetic data of observatory "Moscow (MOS)" for an interval of 1965-2005 are analyzed. It is known, that the part of an observable geomagnetic field is generated by magnetosphere and magnetosphere-ionosphere ring current systems, which intensity depends on solar wave and corpuscular activity. As quantitative indicators of solar and geomagnetic activity, the index F10.7, solar wind speed V, Z-component of interplanetary magnetic field (Bz) and Kp- and Dst- indexes are used. The link of secular variations of a geomagnetic field with the listed parameters is shown. An approach for the more rigorous definition of secular variations of the main geomagnetic field is proposed. The approach is based on a removal from monthly-average amplitudes of a field the contributions from magnetosphere ring current systems.
Avdeeva E.
Dremukhina L.
Filippov S. S.
Gromova L.
Levitin A.
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