NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Magnetic Variation
From: Bill Morris
Date: 2010 Mar 1, 17:26 -0800
From: Bill Morris
Date: 2010 Mar 1, 17:26 -0800
But it seems that there is indeed seasonal variation and diurnal variation in the Earth's magnetic field. See for example:
Exploration Geophysics 29(4) 428 - 432 (1998) doi:10.1071/EG998428
No doubt it is of no significance for navigators, except in polar regions, and probably should not have put in an appearance in a test of navigational knowledge.
Bill Morris
Pukenui
New Zealand
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