I am Professor of Geomagnetism at DTU Space Denmark. My research focuses on changes of the Earth's magnetic field on time scales from minutes to millennia, exploring both observational and theoretical aspects.

I develop global models of the Earth's magnetic field and its time changes, based on measurements made by satellites and at ground observatories, as well as from historical records.  These models can be used to probe dynamic processes taking place deep within the Earth, to study the physical properties of the lithosphere close to the Earth's surface, and to investigate electrical current systems flowing in the ionosphere and the magnetosphere. Detailed models of the Earth's magnetic field are essential for applications that use it as a source of orientation information, for example in mobile devices and for satellite navigation.

Selected publications

- Finlay, C.C., Aubert, J. and Gillet, N. (2016) Gyre-driven decay of the Earth's magnetic dipole, Nature Comm., Vol 7, doi: 10.1038/ncomms10422

- Finlay, C.C., Olsen, N., Kotsiaros, S., Gillet, N. and Toeffner-Clausen, L. (2016) Recent geomagnetic secular variation from Swarm and ground observatories as estimated in the CHAOS-6 geomagnetic field model, Earth Planets Space, Vol 68, 112. doi: 10.1186/s40623-016-0486-1

- Finlay, C.C., Dumberry, M. Chulliat, A., and Pais, A. M. (2010) Short timescale core dynamics: theory and observations, Space Science Reviews, 155, 177-218, doi: 10.1007/s11214-010-9691-6

- Finlay, C.C. and Jackson, A., (2003) Equatorially Dominated Magnetic Field Change at the Surface of Earth's Core, Science, 300, 2084-2086, doi: 10.1126/science.1083324