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Tromsø Geophysical Observatory
Faculty of Science
University of Tromsø, Norway.
Geomagnetic Activity Index, Tromsø
Activity Index last 33 days, Tromso

Activity Index since 1987, Tromso

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Responsible editor: Truls Lynne Hansen
Web & cgi programmer: Børre Heitmann Holmeslet
Last page update 8.May 2009