The magnetic north pole -
to which compasses point and whose location is the basis for multiple
navigation systems - has been on the move for years. NOAA's National Centers
for Environmental Information (NCEI) normally released an updated "World
Magnetic Model" every five years, which becomes the basis for adjustments
to GPS and other navigation systems. The next update wasn't due until next
year, byt NCEI scientists say the pole has been moving with unexpected speed
away from the Canadian Arctic toward Siberia.
As a result, they issued an "Out-of-Cycle" update for the first time
ever in early February.
|Updated map of Earth's magnetic field (NCEI map)|
Changes in location of
the magnetic north pole can have an impact on various aspects of amateur radio
operation. CQ is planning to publish
an article on those effects in an upcoming issue.