Geomagnetic field: Contribution of higher harmonics to the variations of virtual pole positions |
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Authors: | A Janá?ková L Urban |
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Institution: | (1) Department of Geophysics and Meteorology Faculty of Math. and Phys.Charles University Prague, Czechoslovakia |
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Abstract: | Summary On the basis of the 1945 IGRF two sets of virtual geomagnetic poles have been computed and compared. The first set refers
to a realistic model of the field; these virtual poles are all located in the north polar area. The second set refers to an
artificial field containing higher harmonics only; these virtual poles are distributed over the Earth's surface as a whole.
However both sets of virtual poles yield similar distributions of values of their space (and probably also time) variations. |
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