Earth's core and dynamo studies

We use numerical simulations, experiments and direct observations (e.g. from satellites, observatories, or from historical measurements) to characterise how magnetic fields are generated in planets through "self-excited dynamo" action in conducting fluids. An important example is how the geomagnetic field arises from convection of the liquid iron outer core of the Earth. We also use magnetic fields as tools to elucidate the structure of the crust, and the electrical conductivity of the mantle.