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

  • 

    Chichijima Geomagnetic Field

    Average 1-hour (00-59)

    from 1973-02-01T00:00:00 to 6 months ago (-P6M)

    Geomagnetic field (CBI)

    definitive

    DHZF

    Average 1-minute (00:30-01:29)

    from 1989-02-19T00:00:00 to 6 months ago (-P6M)

    Geomagnetic field (CBI)

    definitive

    DHZF

    1-second (instantaneous)

    from 1993-11-01T00:00:00 to 6 months ago (-P6M)

    Geomagnetic field (CBI)

    definitive(variation) after(before) Jun. 2003

    DHZF or XYZF