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Weak magnetic field changes over the Pacific due to high conductance in lowermost mantle | Nature Geoscience
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International Geomagnetic Reference Field: the thirteenth generation | Earth, Planets and Space | Full Text
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A typical magnetic field map at altitude 800 km computed by IGRF model | Download Scientific Diagram
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![File:Fig9-Global-distribution-of-the-ambient-magnetic-field -at-500km-estimated-from-the-IGRF-model.gif - Wikimedia Commons File:Fig9-Global-distribution-of-the-ambient-magnetic-field -at-500km-estimated-from-the-IGRF-model.gif - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/a/a4/Fig9-Global-distribution-of-the-ambient-magnetic-field-at-500km-estimated-from-the-IGRF-model.gif)