Geomagnetic Monthly Bulletins

Geomagnetic monthly bulletins are published to provide rapid access to the provisional geomagnetic observatory results. The data presented in these bulletins 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. For copyright details and acknowledgment statements please refer to Section 5 of each observatory's bulletin.

Commercial users can contact the geomagnetism team for information on the range of applications and services offered.