A more serious possible effect of the "tug of war" between magnetic field patches in northern Canada and Siberia, which some scientists say is causing the accelerated movement of the magnetic north pole, is its potential to weaken the magnetic shield sparing earth from deadly solar and cosmic radiation.
The natural movement of the magnetic North Pole has accelerated in recent years toward Siberia, threatening to throw the world's smartphones and Global Positioning System (GPS) off-kilter.
The magnetic north pole is wandering about 34 miles (55 kilometers) a year.
In early 2018, scientists in charge of the model update realized they needed to have an earlier update in order to keep within the acceptable limits for magnetic-based navigation.
In the 189 years since it was first measured in the Canadian Arctic, it has moved some 2,300 kilometers toward Siberia, and its speed jumped from about 15 kilometers per year to 55 kilometers per year since 2000. There is a hot liquid ocean of iron and nickel in the planet's core where the motion generates an electric field, said University of Maryland geophysicist Daniel Lathrop, who wasn't part of the team monitoring the magnetic north pole.
"Due to unplanned variations in the Arctic region, scientists have released a new model to more accurately represent the change of the magnetic field between 2015 and now", said NOAA in a news release on February 4. We might just call it magnetic weather'.
Whales are also attuned to magnetic fields.
Over the last few years, Earth's magnetic field has been shifting rapidly.
"We've updated the model on a five-year cycle, because in the past, that's the average amount time it takes for the errors to become too large", Chulliat said.
Also, migratory animals such as birds, butterflies, and whales use the magnetic field for directions. And the magnetic poles frequently don't line up with the pole defined by the axis of the Earth's rotation.
Since 2015, the place to which a compass points has been sprinting toward Siberia at a pace of more than 30 miles a year.
The magnetic field shields Earth from some risky radiation, Dr Lathrop said.
They can be found in the navigation systems of ships and airplanes as well as geological applications - such as drilling and mining.
With the shutdown over, however, the National Oceanic and Atmospheric Administration (NOAA) has now announced the availability of the new Model.
'Although GPS is a great tool for navigation, it is limited in that it only provides your position, ' geodetic scientist James Friederich from the US National Geospatial-Intelligence Agency explained in 2014.
'Our war fighters use magnetics to orient their maps.
'All of these examples need the WMM to provide your proper orientation'.