Together with colleagues I have worked on the following geophysical models and related software:


  • CHAOS: model of the near-Earth geomagnetic field 1999- present derived from low-Earth orbit satellite data and ground magnetic data

chaosmagpy package

chaos matlab forward code

Finlay, C.C. Kloss, C., Olsen, N., Hammer, M.D., Tøffner-Clausen, L., Grayver, A. and Kuvshinov, A. (2020) The CHAOS‑7 geomagnetic field model and observed changes in the South Atlantic Anomaly Earth, Planets, Space, 72:156, doi: 10.1186/s40623-020-01252-9

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., Olsen, N. and Toeffner-Clausen, L. (2015) DTU candidate field models for IGRF-12 and the CHAOS-5 geomagnetic field model, Earth, Planets and Space, Vol 67:114  doi:10.1186/s40623-015-0274-3


  • LCS-1: high resolution model of Earth's Lithospheric magnetic field derived from Champ and Swarm data

Olsen, N., Ravat, D., Finlay, C.C., and Kother, L.K. (2017) LCS-1: a high-resolution global model of the lithospheric magnetic field derived from CHAMP and Swarm satellite observations, Geophys. J. Int., Vol 221, Pages 1461–1477, doi:10.1093/gji/ggx381.

  • CoreFlo-LL.1: model of flow in the Earth's core at mid and low latitudes

Kloss, C., Finlay, C.C. (2019) Time-dependent low latitude core flow and geomagnetic field acceleration pulses, Geophys. J. Int., in press

  • AMPS: model of ionospheric currents

Laundal, K. M., Finlay, C.C., Olsen, N., and Reistad, J.P (2018) Solar Wind and Seasonal Influence on Ionospheric Currents From Swarm and CHAMP Measurements, J. Geophys. Res., Space Physics, Vol 123,

Laundal, K. M., Finlay, C.C., and Olsen, N. (2016) Sunlight effects on the 3D polar current system determined from low Earth orbit measurements, Earth Planets Space, Vol 68, 142 doi: 10.1186/s40623-016-0518-x

  • COV-OBS.x: historical model of the core and large-scale external field 1840-2020

Huder, L., Gillet, N., Finlay, C.C., Hammer, M.D. and Tchoungui, H. (2020) COV‑OBS.x2: 180 years of geomagnetic field evolution from ground‑based and satelliteobservations Earth, Planets, Space, 72:160, doi: 10.1186/s40623-020-01194-2

Gillet, N., Barrois, O., and Finlay, C.C. (2015) Stochastic forecasting of the geomagnetic field from the COV-OBS.x1 geomagnetic field model, and candidate models for IGRF-12,Earth, Planets and Space, Vol 67:71  doi:10.1186/s40623-015-0225-z

Gillet, N., Jault, D., Finlay, C.C., Olsen, N. (2013) Stochastic modeling of the Earth's magnetic field: Inversion for covariances over the observatory era, Geochemistry, Geophysics, Geosystems, Vol 14, 766-786, doi:10.1002/ggge.20041. 


  • IGRF model: international geomagnetic reference field model

Alken, P. et al., (2021) International Geomagnetic Reference Field: the thirteenth generation Earth, Planets, Space, 73:49, doi:10.1186/s40623-020-01288-x

Thebault, E., et al., (2015) International Geomagnetic Reference Field: the 12th generation ,Earth, Planets and Space, Vol 67:79,  doi:10.1186/s40623-015-0228-9

Finlay, C.C., et al., (2010) International Geomagnetic Reference Field: The Eleventh Generation, Geophys. J. Int., 183, 1216-1230, doi:10.1111/j.1365-246X.2010.04804.x.

26 FEBRUARY 2024