The location of the magnetic north pole is crucial for the functioning of the global positioning systems (GPS).

The Earth’s surface isn’t a smooth ball ... but we understand she still prefers to use paper maps. Want to know more about GPS? We can help. Just want to use it? We’ve come a long way ...

For those of us who don’t know, WMM is actually a map of Earth's magnetic field. It “provides precise navigational data for all military and civilian planes, ships, submarines, and GPS units ...

WMM is actually a map of Earth’s magnetic field. As per NOAA, WMM “provides precise navigational data for all military and civilian planes, ships, submarines, and GPS units.” “WMM 2025 ...

Spoofed GPS signals were used during Vladimir ... These included: automatic route logging systems on ships low-earth satellite signals route histories taken from users of the Strava exercise ...