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 Aurora over the North of Scotland

New Paper Releases

Release of WMM 2025

Magnetic Observatories

Recent Research

Check our our recently published scientific research papers.

Release of World Magnetic Model (WMM) 2025

BGS and NOAA-NCEI release new World Magnetic Model - High Resolution for 2025 to 2030.

Geomagnetic Observatories

BGS operate nine magnetic observatories. Three are located in the UK and six overseas. They continually measure changes in the strenght and direction of the Earth's magnetic field.

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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

Research

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

Operations

About our magnetic observatory operations, UK surveying, equipment.

Data and Services

Observatory data, indices, models, charts, applications.

Education

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

Global activity now!

Find out what the current global geomagnetic activity level is.