Geomagnetic yearbooks are published to provide a record of the definitive geomagnetic observatory results.
Historical articles are papers relating to the operation of geomagnetic observatories past and present.
More information about each observatory is available here.
The data presented in these yearbooks and articles are provided for personal, academic, educational, non-commercial research or other non-commercial use and are not for sale or distribution to third parties without written permission from BGS.
Reproduction of any part of these yearbooks and articles should be accompanied by the statement:
'Reproduced with the permission of the British Geological Survey ©NERC. All rights Reserved.'.
Commercial users can contact the geomagnetism team for information on the range of applications and services offered.
To view these files you will need a copy of Acrobat Reader.