Japanese On geomagnetic coordinate


Transformation of Coordinate (Geographic/Geomagnetic)    IGRF

Illustration for geomagnetic coordinate Geomagnetic coordinate treated in this page is "geomagnetic dipole coordinate" referring to the geocentric dipole field approximating the geomagnetic field based on IGRF. The poles move slowly according to "seclular variation of the geomagnetic field".

Geomagnetic latitude and longitude are defined as shown in the illustration.