Magnetic Declination
Calculate magnetic declination or variation values
The three 'norths' combine over Great Britain for the first time in history | OS
The three norths align over Great Britain | Blog | OS
WalkLakes • Do you need to worry about Magnetic Variation?
Magnetic north continues to the east | Blog | OS
A Tale of three Norths | OS GetOutside
True North to align with Magnetic North at Greenwich for first time in 360 years
How to adjust for magnetic declination or variation
United Kingdom Magnetic Survey
World Magnetic Model (WMM) | National Centers for Environmental Information (NCEI)
Magnetic Declination & Grid Convergence
All of the norths are about to align over Britain • The Register
The three norths align over Great Britain | Blog | OS
World Magnetic Model (WMM) | National Centers for Environmental Information (NCEI)
February 2022 - Compasses and magnetism
A Tale of three Norths | OS GetOutside
What's your Magnetic Variation – the compass not you ! | altendorff.co.uk
Understanding magnetic north with Steve Backshall and Ordnance Survey
How to adjust for magnetic declination or variation
The Great North Run - British Geological Survey
Magnetic declination - The Map Reading Co.
