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-Forêt (Loiret, France), a network of 18 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).
DOI for definitive data
It is now possible to refer to part of BCMT definitive data using a Digital Object Identifier: doi:10.18715/BCMT.MAG.DEF. It provides a persistent way to access and cite BCMT dataset of magnetic definitive data.