The rules for the data use and exchange are defined by the Guide on the World Data Center System (ICSU Panel on World Data Centers, 1996). 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, Kyoto must properly be acknowledged.
Commercial use and re-distribution of WDC data are, in general, not allowed. Please ask for the information of each observatory to the WDC.
Geomagnetic Field Data at the Observatories