Matematisk model af Jordens magnetiske felt

New international reference model builds on DTU Space data

Monday 02 Feb 15


Chris Finlay
DTU Space
+45 45 25 97 13


Nils Olsen
Professor -head of Geomagnetism
DTU Space
+45 45 25 97 08

The newly released International Geomagnetic Reference Field is based on Swarm data and DTU Space know-how

A new version of the International Geomagnetic Reference Field (IGRF), the international standard description of the Earth's magnetic field, has been announced this month.  The Division of Geomagnetism at DTU Space have played a key role in the new IGRF model, which is largely based on magnetometer data from the Swarm mission. Lecturer Chris Finlay is chair of the IAGA working group responsible for the IGRF, and he helped co-ordinate the new release.

Furthermore a team from the Division of Geomagnetism (Chris Finlay, Lars Tøffner-Clausen and Professor Nils Olsen) produced crucial candidate models, derived primarily from Swarm data, that contributed strongly to the final product. 

The International Geomagnetic Reference Field is used by many commercial organizations and individuals as a source of orientation information. It is also the standard geomagnetic reference for scientists in a wide variety of disciplines, including biologists studying animal migration, physicists studying solar-terrestrial interactions, and geologists studying crustal magnetic anomalies.

Picture: Dr. Gary A. Glatzmaier - Los Alamos National Laboratory - U.S. Department of Energy