The northern magnetic pole is rapidly and necessarily altered, and the Arctic requires a new model of the Earth's magnetic field for military and civilian vessels. The release of this model is delayed until January 15, regardless of the request for updating by the US military.
No one definitely believed why the change has accelerated rapidly in recent times nature.
The pre-model of the magnetic field was released in 2015, and updates were submitted for a period of 5 years. However, these changes are enormous. Generally, most of the Arctic Ocean is due to be the latest revision in 2019. This will only be a serious update for more than four years after the last module of the explosion that exploded in 2016.
This update does not affect GPS receivers that do not depend on the magnetic north pole. Instead, the exact location of the orbit of the subscriber is known and their trigonometry is used. Satellite orbitals, however, have been optimistic for the recognition of the world's most densely populated regions, and the other factor is to reduce GPS accuracy and reduce Arctic acceptance.
The magnetic north of the north was never a fixed place, but the northern hemisphere, which has been shown by its moving magnetism over the past 40 years, has been accelerating in its record-breaking business during the early part of the decade. (Geographical North Pole and the Magnetic North Pole have no special connection: former cartographers have created).
First measured the Canadian Arctic in 1831, the fort slowly moved north. By 1990, this change accelerated from 10 miles per year to 30 miles per year. It led to the transfer of more than 150 miles over 600 years ago. Now it will leave the Arctic Ocean to Siberia.
The Earth's center of gravity contributes to the Earth's magnetic field. When it moves and flows, there are changes in the field, and the "upper" of the North Pole is also different.