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

  • 

    Tokyo Geomagnetic Field

    1-hour (original)

    from 1896-12-31T16:00:00 to 1912-12-31T15:00:00

    Geomagnetic field (TOK)

    definitive

    DHZ

    1-hour (revised)

    from 1896-12-31T16:00:00 to 1912-12-31T15:00:00

    Geomagnetic field (TOK)

    definitive

    DHZ


    Details of Tokyo data are given in Toya et al. (2005).