by Dr.Tony Phillips
January 16, 2019
from SpaceWeatherArchive Website
That rectangular marvel of modern technology contains thousands of lines of code. Among them is the World Magnetic Model (WMM) - a program that helps your phone navigate. And it's in a bit of trouble.
announced that the WMM needs an emergency update because
Earth's magnetic field is changing.
The magnetic north pole is displaced hundreds of miles from the true north pole and, to make matters worse, it wanders unpredictably from year to year.
To find true north in the continental USA, you have to correct compass directions by as much as 20 degrees using a special 'declination table.' The World Magnetic Model is a computer program that makes this correction for you.
It improves the navigation of devices ranging from nuclear submarines to common smartphones.
Normally the World Magnetic Model is updated every 5 years.
For decades that's been often enough to track natural changes in our planet's magnetism caused by fluctuations in Earth's molten core.
But suddenly things are changing faster than before...
from the World Magnetic Model (WMM2015).
This information is about to be updated
by a new WMM.
That's why, for the first
time, they are issuing an update to the WMM before the usual 5 year
mark in 2020.
It was supposed to be
released on Jan. 15th but has been delayed until Jan. 30th
because of the partial shutdown of the US government.