Prof. David Gubbins
Project Summary
The magnetic field measured by satellites has 3 distinct sources: the dynamo in the liquid core, magnetised rocks near the Earth’s surface, and the external, solar terrestrial environment. It is difficult to separate out the large-scale field (originates in the earth’s core) from the small-scale, permanent field (originates in the earth’s crust). This project aims to develop physical theories for the origin of each field to aid separation, accompanied by comparison with satellite data and iterative improvements. It is envisaged that this project will extend our knowledge of the core field to unprecedented fine resolution while establishing the larger scales of the crustal field.
