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K Indices

Information about K Indices

K indices from the UK observatories:

1868-90 Hand Scaled

1991-> Automatically Scaled

The K Indices are available from :

  • Lerwick observatory in the Shetland Islands (1940 - present)
  • Eskdalemuir observatory in the Scottish Borders (1940 - present)
  • Hartland observatory in North Devon (1957 - present)
  • Abinger observatory, Surrey (1926 - 1956)
  • Greenwich observatory, London (1868 - 1925)
Further information on these magnetic observatories is available.

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Observatory code:

Month : (eg. 6 for June) Year : (from 1868 to present)

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