The Changing Geomagnetic Field from the ionosphere to the core-mantle boundary

David Mozzoni
In this study two aspects of the geomagnetic field have been investigated. The first partfocuses on perturbations of the external field, as seen by the CHAMP satellite and predicted by the Thermosphere-Ionosphere Electrodynamic General Circulation Model, for the purpose of helping to separate out ionospheric sources from the ambient geomagnetic field using a physics based approach. Part two looks at variations of the internal field through an examination of the South Atlantic Anomaly.
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