This is one of the strangest changes to the Earth’s magnetic field since the Daleks planned to rip out the Earth’s core in the 1964 Doctor Who adventure.
But this is not science fiction, this is scientific fact: the Earth’s magnetic north pole points Russiaas has happened since the beginning of the nineteenth century, but at a much slower rate.
Unlike the geographic North Pole, which marks the northernmost point on Earth, the Magnetic North Pole is the direction indicated by a compass needle.
Unlike geographic position, its position is not fixed but changes along with magnetic activity beneath the earth’s crust.
According to the Global Magnetic Model, which tracks the Earth’s magnetic poles, the relentless movement caused by the movement of molten iron has slowed to about 15 miles per year, a development that has worried put on scientists.
That’s less than half the speed recorded in the 1910s and nearly 10 miles a year slower than in 2020, when the model was last updated.
“Magnetic poles move very slowly you have Over the centuries since the 1500s,” said Dr Ciarán Beggan of the British Geological Survey.
“For the past 20 years, it has been moving north towards Siberia, increasing in speed every year until about five years ago, when it suddenly slowed down from 50 kilometers per year to 40 kilometers per year.
The Earth’s magnetic North Pole is moving towards Russia, as it has been since the beginning of the 19th century, but at a much slower rate.
A graph showing how the magnetic north pole changes over time compared to the geographic north pole
The black line shows changes in the magnetic position of the North Pole between 1831, when British naval commander Sir James Clark Ross first discovered it, and 2000.
Unlike the geographically stationary North Pole, the magnetic North Pole moves. In the 2000s, the pace reached 34 miles per year, but the pace is now slowing
Scientists measured the strength and direction of the Earth’s magnetic field in the Canadian Arctic during a 2005 expedition to determine the position of the North Magnetic Pole.
“This is behavior we have never seen before. This makes it much more difficult to predict changes in the magnetic field.
“Antarctica moves very slowly in comparison. We don’t know exactly why there is such a big difference between the two hemispheres.
Although these changes may seem far removed from everyday life and are often overlooked, they affect us all to some extent.
The magnetic compass is a cornerstone of modern navigation, giving direction to the compass on planes, submarines and even smartphones.
Small changes in the Earth’s magnetic field can also have a big impact on oil and gas drilling or seismic activity surveys.
The magnetic compass is the cornerstone of modern navigation, providing compass bearing on airplanes, submarines, and even smartphones.
In 1831, British naval commander and Arctic explorer Sir James Clark Ross discovered the north magnetic pole in northern Canada, and since then he has been moving to Siberia.
Although Ross relied on a combination of magnetic needles, compasses, and chart readings to confirm his findings, today’s technology is very advanced.
The British Geological Survey collaborated with the US National Geophysical Data Center to develop the Global Magnetic Model, which relies heavily on the European Space Agency satellite constellation.
Professor Phil Livermore from the University of Leeds hypothesizes that variations in the position of the magnetic north pole are caused by the movement of a “jet stream” of molten iron in the center of the Earth.
Tracing these movements allows scientists to predict changes, but the process is complicated by the fact that molten iron lies deep within the Earth’s crust.
Maybe it’s time to bring in the Daleks.
2024-11-16 13:55:00
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