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» Online Classroom   » Inland and Coastal Navigation   » Public Discussion of Inland and Coastal Navigation   » World Magnetic Variation Graph -

Author Topic: World Magnetic Variation Graph - Leslie posted February 19, 2010 09:54 PM                   Here's a link to the 2010 NOAA magnetic variation model and graphs. If you click on the graph its a pretty world view of the variation of the magnetic field. http://www.ngdc.noaa.gov/geomag/WMM/DoDWMM.shtml Best regards, Leslie David Burch posted February 19, 2010 11:16 PM                   thanks for that reference. It is indeed a nice picture. At the same site you can also download a PC program that will compute accurate variation for any location. see http://www.ngdc.noaa.gov/geomag/models.shtml The program takes some study to get the input right, but then it works easily. There is related discussion on this link.... it is hard to beat a good picture, though! From: Starpath, Seattle, WA

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