Welcome Our mission is to provide ground-based geomagnetic observations and data products of the highest quality.

the BCMT operates the French National Magnetic Observatory, located in Chambon-la-ForĂȘt (Loiret, France), a network of 16 overseas observatories and a network of 11 repeat stations in metropolitan France.
You will find on this site all the data collected (raw magnetic measurements as well as various data products derived from these measurements).

Lightning Damages Observatory in Vietnam PHU, Phu Thuy observatory (Vietnam) was struck by lightning on the 22nd of May 2015. No recordings are available since then. A large maintenance is being planned.

Addis Ababa Light Rail A 17-kilometre line running from the city centre to industrial areas in the south of the city opened on 20 September 2015. Large distubances are, since then, present on recordings from AAE, Addis Ababa observatory (Ethiopia).