Scientists also established, newly identified Magnetic waves sweep the surface of the Earth’s core every seven years.
Earth’s magnetic field It creates a kind of “protective bubble” around our planet, which blocks harmful radiation and prevents the atmosphere from escaping into space. Thanks to this, it is possible on the surface of the planet life flourishes.
Dr Gillette added: ‘Magnetic waves can be due to disturbances In the depths of the Earth’s liquid core, it is likely associated with plumes (a columnar stream of heated substance – liberator). Each wave is determined by its duration and typical length scale, and the period depends on the characteristics of the forces.”
New research made possible through the use of A swarm of European Space Agency satellites. It was launched in 2013 and studies the activity of the Earth’s interior. Magnetic and dynamic activity “enjoys” special attention.
The researchers then combined this data with information collected at ground-based and space-based observatories from 1999 to 2021.
The newly discovered waves are named Coriolis magnetic waves They are huge “magnetic poles” aligned along the Earth’s rotation axis. They are strongest at the equator. They “circulate” around the boundaries of the Earth’s core and mantle with an amplitude of about 3 km per year and moving westward at speeds of up to 1,500 km per year.
It may be related to other fluctuations that we have not been able to detect so far due to insufficient data.
Elias Daras, Swarm Expedition Scientist noted: “The current research will certainly improve the scientific model of the magnetic field in the Earth’s outer core. It may also give us new vision In the electrical conductivity of the lowest fraction of the mantle, and in the thermal history of the Earth. “
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