Home / Science / Mysterious shift in the Earth's magnetic field invites scientists to fix world magnetic model that guides navigation

Mysterious shift in the Earth's magnetic field invites scientists to fix world magnetic model that guides navigation



The updated version of the world magnetic model, which plays a key role in modern navigation, would be released on January 15. This was postponed due to the ongoing state suspension. (19459013) Pixabay )

Earth's magnetic field is constantly moving and since it is used to properly navigate the planet, scientists must regularly update the world magnetic model (WMM) to account for the field changes.

World Magnetic Model

Researchers update WMM every five years. WMM is behind modern navigation used by Google Maps, planes and ships in the ocean

The National Oceanic and Atmospheric Administration (NOAA) retains WMM's key role in modern navigation. While GPS is useful for navigation, it has limitations in that it only provides the position. The magnetic field gives the orientation and the direction you are facing.

The US Geophysical Data Center released the current version of WMM 201

5. This would mean that an update will not apply until next year.

Irregular behavior Of the Earth's magnetic field

For reasons that still baffle researchers, the magnetic north pole appears.

Ciaran Beggan, from the British geological survey in Edinburgh, said it was moving at about 30 miles a year.

"It wasn't much about between 1900 and 1980 but it has really accelerated over the last 40 years," Beggan says.

Earth's magnetic field is generated by unpredictable changes in melting deep in the core of the planet. what lies behind the irregular changes in the magnetic field, but some scientists believe it has something to do with high-speed liquid iron beam during Canada.

"The location of the magnetic magnet bar appears to be controlled by two large-scale magnetic field plates, one under Canada and one under Siberia. The Siberian patch wins the competition, "" University of Leeds geomagnetist Phil Livermore at a meeting of the American Geophysical Union in Washington DC last month. 19659003] Fast changes in the magnetic field Call for previous round of WMM

The magnetic field changes as soon as scientists have to fix The odd behavior of the magnetic field urged scientists to fix the map earlier, the updated WMM would be released on January 15, but it was moved to Jan 30 due to the ongoing government stoppage.

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