קובץ:Daily Movement North Magnetic Pole.jpg

Daily Movement of the North Magnetic Pole

It is important to realize that the position of the North Magnetic Pole given for a particular year is an average position. The Magnetic Pole wanders daily around this average position and, on days when the magnetic field is disturbed, may be displaced by 80 km or more. Although the North Magnetic Pole's motion on any given day is irregular, the average path forms a well-defined oval. The diagram shows the average path on disturbed days.

April 20, 2007

Wikipedia-the free encyclopedia
Crown Copyright file: 2006-21148

Formal permission is granted to use, on a one time basis only, the following image from the Geological Survey of Canada, to be posted on Wikipedia-the online encyclopedia :

Image of daily movement of the north magnetic pole
Nmpoval2001d_e.gif, Geological Survey of Canada

From the website: http://www.gsc.nrcan.gc.ca/geomag/nmp/daily_mvt_nmp_e.php

The material should appear with an appropriate acknowledgement, for example “Reproduced with the permission of the Minister of Public Works and Government Services Canada, 2007 and Courtesy of Natural Resources Canada, Geological Survey of Canada”.

Thank you,
Tom Lagroix,
Head, Sales & Distribution / Chef, Vente et distribution
GSC Bookstore / Librairie de la CGC
601 Booth St. / 601, rue Booth
Ottawa, On.
K1A 0E8
613-995-3268
tlagroix@nrcan.gc.ca
http://gsc.nrcan.gc.ca/bookstore