Magnetic variation

Submitted: Saturday, May 17, 2008 at 10:37
ThreadID: 57693 Views:10268 Replies:6 FollowUps:11
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I'm sure you sailors out there will know the answer :)

I'm trying to discover the current magnetic variation for Melbourne (accuracy to 0.5 deg will do) and am somewhat confused: if I'm reading it correctly the Geoscience Australia calculator gives a result of 5.498 deg. but web searches indicate about 11.3 deg?

GSA calculator

Mike Harding
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