• Geomagnetic data
  • Geoelectric data
  • Atmospheric electric data
  • Observational investigation
  • Geomagnetic event catalogs
  • Annual means of geomagnetic data

    • Download Data

    Geomagnetic field
    Kakioka Magnetic Observatory(KAK)
    1-minute (instantaneous) before Jul. 1980, Average 1-minute (00:30-01:29) since Jul. 1980

    definitive data are valid from Jan 1976 to May 2025




    Year, Month

    Year, Month
    Time interval you can choose for download should not be more than one year. The start date has the privilege of determining time interval.

    Please cite as follows, when using the data in your paper:
    Kakioka Magnetic Observatory, 2013, Kakioka geomagnetic field 1-minute digital data in IAGA-2002 format [dataset], Kakioka Magnetic Observatory Digital Data Service, doi:10.48682/186bd.3f000