NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Magnetic variation
From: Marcel Tschudin
Date: 2011 Apr 28, 21:34 +0300
From: Marcel Tschudin
Date: 2011 Apr 28, 21:34 +0300
This information here
http://gsc.nrcan.gc.ca/geomag/nmp/long_mvt_nmp2_e.php
indicates that the North Pole didn't move much at that time. This however doesn't reflect possible local changes.
Marcel
http://gsc.nrcan.gc.ca/geomag/nmp/long_mvt_nmp2_e.php
indicates that the North Pole didn't move much at that time. This however doesn't reflect possible local changes.
Marcel
On Thu, Apr 28, 2011 at 9:25 PM, Marcel Tschudin <marcel.e.tschudin@gmail.com> wrote:
There is this on-line calculator from NOAA which starts from 1900.
http://www.ngdc.noaa.gov/geomagmodels/struts/calcDeclination
May be the three years difference are negligible. If not, I would try to find a value by extrapolating the changes during the first years of that century.
MarcelOn Thu, Apr 28, 2011 at 9:14 PM, Lars Bergman <lars.h.bergman@gmail.com> wrote:
Does anyone know the magnetic variation at 80N 33E for the year 1897?
Lars, 59N 18E
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