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Tromsø Geophysical Observatory
Faculty of Science and Technology
University of Tromsø,
Norway.
Geomagnetic Activity Index, ASCII output
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  Ny Ålesund
  Longyearbyen
  Hopen
  Bjørnøya
  Nordkapp
  Sørøya
  Tromsø
  Rørvik
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  Dombås
  Karmøy

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The geomagnetic index is the absolute mean deviation from daily mean H, in nT.
(-99 if no data)
Main geomag. page

Responsible editor: Chris Hall
Web & cgi programmer: Børre Heitmann Holmeslet
Last page update 9.Feb. 2017