Locations of North and South Magnetic poles and Geomagnetic poles (a.k.a. dipole poles) mapped in relation to the Geographic pole of the Earth. Data is based on IGRF-13 and displays the historic pole locations from 1900 onwards and the prediction until 2025. The Geomagnetic poles are the intersections of the axis of a bar magnet hypothetically placed at the planet’s center and the Earth’s surface. The geomagnetic field, however, has a more complicated shape than a magnetic field generated by a bar magnet. The Magnetic poles are the points at which magnetic needles actually become vertical. These poles are drifting due to changes in the geomagnetic field called “the geomagnetic secular variation”.
The ‘navia‘ and ‘lipari‘ Scientific color maps are used to guarantee precise and color-blind-friendly representation of the temporal evolution of the poles.
- Creator: Fabio Crameri
- This version: 04.01.2024
- License: Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
- Specific citation: This graphic by Fabio Crameri is available via the open-access s-ink.org repository.
- Related reference: International Geomagnetic Reference Field: the 13th generation, Alken, P., Thébault, E., Beggan, C.D. et al. International Geomagnetic Reference Field: the thirteenth generation. Earth Planets Space 73, 49 (2021). https://doi.org/10.1186/s40623-020-01288-x
- Printable version in CMYK and vector format
- Suitable for light & dark backgrounds
- Perceptually uniform colour maps
- Colour-vision deficiency friendly
- Readable in black&white
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