Change in the magnetic moment of an equivalent dipole and the distance to it according to oservatories (1950-2020)

Abstract

The average annual values of the characteristics of the magnetic field obtained at observatories from different regions make it possible to calculate the values of the local magnetic constant in the corresponding years. Changes in this parameter can be associated with both a change in the magnetic moment of an equivalent dipole and a change in the distance to it. The paper assessed the magnitude of these changes over the past 60 years and the possible combined influence of both of these factors.