INTERMAGNET Definitive Data - Instructions
Note: This application will not work if your browser is using a
proxy server. We are working to resolve this problem.
This service allows the download of definitive
geomagnetic data. By default data for year 2007
are shown, but data for any date can be selected using the drop
down menus. Note that only observatories that have data for the
selected date range will be shown.