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Review 2016

Research Grant Awarded

Earth's Magnetic Environment

Geomagnetism Review 2016

Read our review of the Geomagnetism Team's activities in 2016.

Space Weather Impact on Ground-based Systems (SWIGS)

Major new 4-year project: Space Weather Impacts on Ground-based Systems (SWIGS), kicks off in May. This NERC-funded project brings together space physicists and geophysicists from 10 UK universities and research centres. Together we will develop our understanding of how space weather and geomagnetic activity drives electric fields in the Earth and the impact on power grids, pipelines and rail networks.

Model of the Earth's Magnetic Environment

Find out more about our Model of the Earth's Magnetic Environment. This is used as a basis for a number of models - BGS Global Geomagnetic Model (BGGM), World Magnetic Model (WMM), International Geomagnetic Reference Field (IGRF).

Latest News

About BGS Geomagnetism

The Geomagnetism team measures, records, models and interprets variations in the Earth’s natural magnetic fields.

Our data and expertise help to develop scientific understanding of change in the Earth and the environment, from deep within the core out into space.

We also provide geomagnetic products and services to industry and to academic colleagues and we use our knowledge for information and education.

Video introduction


Modelling the Earth's magnetic field, space weather hazards.


About our magnetic observatory operations, UK surveying, equipment.

Data and Services

Observatory data, indices, models, charts, applications.


Overviews of the Earth's magnetic field, reversals, magnetic poles.

Global activity now!

Find out what the current global geomagnetic activity level is.