LadyInBed
Well-Known Member
OS are looking for a new mnemonic Magnetic north continues its march to the east
Add for mag, rid for grid
We show magnetic north on all of our maps (and state the date it was calculated), but you can always visit the BGS site for the latest information. New maps in affected areas will also have a new icon we have created in the legend to show the new relationship between the three Norths (magnetic, grid and true).
And if you’re a fan of the mnemonic ADD for mag, RID for grid to help you remember how to make your bearing calculations…that will no longer be helpful in some areas of the country. In the south west, variation is now so small (0 degrees in Plymouth) that you’ll be able to effectively ignore it, but that will gradually change – so does anyone have a suggestion as to what will the new mnemonic be?
If map reading and using a compass is new to you, we have some helpful guides to get you started: Filter | OS GetOutside
Add for mag, rid for grid
We show magnetic north on all of our maps (and state the date it was calculated), but you can always visit the BGS site for the latest information. New maps in affected areas will also have a new icon we have created in the legend to show the new relationship between the three Norths (magnetic, grid and true).
And if you’re a fan of the mnemonic ADD for mag, RID for grid to help you remember how to make your bearing calculations…that will no longer be helpful in some areas of the country. In the south west, variation is now so small (0 degrees in Plymouth) that you’ll be able to effectively ignore it, but that will gradually change – so does anyone have a suggestion as to what will the new mnemonic be?
If map reading and using a compass is new to you, we have some helpful guides to get you started: Filter | OS GetOutside