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New update of the World Magnetic Model reveals that Earth’s magnetic north pole continues to advance towards Russia, getting closer to Siberia and forcing scientists, airlines, GPS systems, maritime operations, and military structures to recalibrate navigation tools to maintain the precision of routes used daily around the planet, while researchers monitor changes in the Earth’s magnetic field and its possible technological impacts in the coming decades
The magnetic north pole of the Earth continues to shift towards Russia and has once again caught the attention of scientists following the release of a new update considered essential for global navigation.
The new version of the World Magnetic Model, known by the acronym WMM, indicates that the pole is closer to Siberia than it was five years ago. Furthermore, it continues to advance in that direction, according to information released by CNN.
Unlike the geographic North Pole, which remains fixed in the Arctic Ocean, the magnetic pole depends on the Earth’s magnetic field. Therefore, its position changes according to the dynamics of the planet’s core.
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This movement is natural. However, in recent decades, the shift has shown an unusual speed. Therefore, researchers have started to monitor the phenomenon more closely.
World magnetic model guides global navigation
The World Magnetic Model is developed jointly by the British Geological Survey (BGS) and the United States National Oceanic and Atmospheric Administration (NOAA).
The tool is used by airplanes, ships, military systems, and navigation equipment. In this way, it helps these systems accurately identify the direction of magnetic north.
According to scientists, the update is necessary because the model uses forecasts based on the recent trajectory of the pole. Thus, over time, the margin of error increases.
For this reason, a complete review occurs every five years. Therefore, systems are recalibrated and new projections begin to guide the equipment.
In December 2024, researchers released two versions of the model. The first is conventional and serves most users. The second has high resolution and offers more details.
Even so, experts explain that most common GPS devices cannot take advantage of this additional improvement. However, for strategic sectors, the update is essential.
Airplanes and military systems need to keep up with the change
Major airlines will need to update the navigation software of their fleets. Additionally, NATO member countries will need to adapt military systems that rely on precise magnetic references.
Experts compare the process to updating a smartphone. That is, more modern versions can improve features, but do not always require a complete equipment replacement.
Even so, keeping the system updated prevents accumulated failures. Therefore, the new review helps navigation equipment continue pointing in the right direction.
The update also confirmed that previous forecasts were quite close to reality. With this, researchers reinforced the reliability of the scientific models currently used.
A journey that began in Canada in 1831
The magnetic north pole was first identified in 1831 by British explorer Sir James Clark Ross, in northern Canada.
Since then, it has gradually migrated towards Siberia. For about four centuries, this movement was relatively slow, generally below 10 kilometers per year.
However, starting in the 1990s, an unprecedented acceleration occurred. During that period, the speed increased from about 15 kilometers annually to approximately 55 kilometers per year.
Later, around 2015, scientists recorded another unexpected behavior. The speed dropped to about 35 kilometers per year.
For this reason, an extraordinary model update was anticipated in 2019. Even so, the current movement continues towards Russia.
Earth’s Magnetic Reversal Also on the Scientific Radar
In addition to the continuous shift, researchers remind us that the Earth’s magnetic field has undergone much more drastic changes throughout geological history.
In certain periods, the polarity was completely reversed. Thus, the magnetic north and south poles swapped positions.
These reversals occur, on average, once every million years. However, the intervals can vary greatly.
The last major reversal happened between 750,000 and 780,000 years ago. Life on Earth has withstood such events, but never in an era with satellite navigation, global power grids, and modern communication systems.
If a new reversal begins, the transition will likely take centuries or thousands of years. Thus, engineers and scientists would have time to adapt the planet’s technological systems.
For now, the main concern is to monitor the advance of the Earth’s magnetic pole and ensure that GPS, airplanes, ships, and military systems continue to function accurately.
After all, how far can the Earth’s magnetic pole shift before requiring new changes in the systems that guide the modern world?
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