How do you measure and describe “direction” when standing at the North or South Pole?

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For most navigation, you can plan and communicate direction based on something relative to a compass, like north-northeast, etc. But if you were on an expedition to either pole, how would you describe your return route? For example, if you were at the North Pole, no matter which direction you moved, it could be called South.

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Latitudinal and longitudinal coordinates can be used to describe a location regardless of position on Earth. They are unique points. If you want to tell someone where to go *relative* to you, you could always use degrees from a reference.

Going towards the north pole: North. Going Away from the North Pole: south. Going clockwise around the pole, as seen from above: West. Going counter-clockwise: East.

If you had any reason to do so, you could describe what meridian (aka line of longitude) you were going to follow. But if the person you are communicating with is in your immediate vicinity, you would just say “your left” or “your right” or “behind you” or whatever, the same way we do in ordinary life.