The Geomagnetism team of the British Geological Survey hosts the World Data Centre for Geomagnetism (Edinburgh), a node of the World Data System (WDS) established by the International Council for Science (ICSU). Previously this WDC was part of ICSU's World Data Centre System from 1966 until its dissolution in 2008.
This WDC has a comprehensive set of digital geomagnetic data as well as indices of geomagnetic activity supplied from a worldwide network of magnetic observatories. The data and services at the WDC are available for scientific use without restrictions. For commercial applications of these data, please contact the relevant institute directly.
The Geomagnetic Data Master Catalogue, containing digital minute and hourly mean data, was formerly hosted within the WDC for Geomagnetism (Copenhagen) at the Danish Meteorological Institute. Responsibility for maintaining and operating this Geomagnetic Data Master Catalogue passed to the British Geological Survey in 2007 and has been incorporated into the WDC for Geomagnetism (Edinburgh).
The rules for the data use and exchange are defined by the World Data System's Data Policy. Note that information on the appropriate institution(s) is also supplied with the WDC data sets. If the data are used in publications and presentations, the data suppliers and the WDC for Geomagnetism (Edinburgh) should be acknowledged.