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Faculty of Science and Technology University of Tromsø, Norway. |
 This figure tells the geomagnetic activity as observed from Tromsø (in the auroral zone) during the last 33 days. As a measure of activity we have used an index describing the average deviation of the horizontal field component from its normal value.
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Responsible editor: Truls Lynne Hansen
Web & cgi programmer: Børre Heitmann
Holmeslet
Last page update 20.Mars 2012